// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
/*
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          ░░▓▓▓▓▓▓▓▓▓▓▓▓▒▒░░░          
               OURS TRULY,
 */
interface Enjoy {
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
pragma solidity ^0.8.0;
/**
 * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822Proxiable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/ERC1967/ERC1967Proxy.sol)
pragma solidity ^0.8.0;
import "../Proxy.sol";
import "./ERC1967Upgrade.sol";
/**
 * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
 * implementation address that can be changed. This address is stored in storage in the location specified by
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967], so that it doesn't conflict with the storage layout of the
 * implementation behind the proxy.
 */
contract ERC1967Proxy is Proxy, ERC1967Upgrade {
    /**
     * @dev Initializes the upgradeable proxy with an initial implementation specified by `_logic`.
     *
     * If `_data` is nonempty, it's used as data in a delegate call to `_logic`. This will typically be an encoded
     * function call, and allows initializing the storage of the proxy like a Solidity constructor.
     */
    constructor(address _logic, bytes memory _data) payable {
        _upgradeToAndCall(_logic, _data, false);
    }
    /**
     * @dev Returns the current implementation address.
     */
    function _implementation() internal view virtual override returns (address impl) {
        return ERC1967Upgrade._getImplementation();
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol)
pragma solidity ^0.8.2;
import "../beacon/IBeacon.sol";
import "../../interfaces/draft-IERC1822.sol";
import "../../utils/Address.sol";
import "../../utils/StorageSlot.sol";
/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 *
 * _Available since v4.1._
 *
 * @custom:oz-upgrades-unsafe-allow delegatecall
 */
abstract contract ERC1967Upgrade {
    // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
    bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);
    /**
     * @dev Returns the current implementation address.
     */
    function _getImplementation() internal view returns (address) {
        return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }
    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
        StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
    }
    /**
     * @dev Perform implementation upgrade
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }
    /**
     * @dev Perform implementation upgrade with additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCall(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        _upgradeTo(newImplementation);
        if (data.length > 0 || forceCall) {
            Address.functionDelegateCall(newImplementation, data);
        }
    }
    /**
     * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCallUUPS(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        // Upgrades from old implementations will perform a rollback test. This test requires the new
        // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
        // this special case will break upgrade paths from old UUPS implementation to new ones.
        if (StorageSlot.getBooleanSlot(_ROLLBACK_SLOT).value) {
            _setImplementation(newImplementation);
        } else {
            try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
                require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
            } catch {
                revert("ERC1967Upgrade: new implementation is not UUPS");
            }
            _upgradeToAndCall(newImplementation, data, forceCall);
        }
    }
    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);
    /**
     * @dev Returns the current admin.
     */
    function _getAdmin() internal view returns (address) {
        return StorageSlot.getAddressSlot(_ADMIN_SLOT).value;
    }
    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        require(newAdmin != address(0), "ERC1967: new admin is the zero address");
        StorageSlot.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
    }
    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {AdminChanged} event.
     */
    function _changeAdmin(address newAdmin) internal {
        emit AdminChanged(_getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }
    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
     */
    bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
    /**
     * @dev Emitted when the beacon is upgraded.
     */
    event BeaconUpgraded(address indexed beacon);
    /**
     * @dev Returns the current beacon.
     */
    function _getBeacon() internal view returns (address) {
        return StorageSlot.getAddressSlot(_BEACON_SLOT).value;
    }
    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        require(Address.isContract(newBeacon), "ERC1967: new beacon is not a contract");
        require(
            Address.isContract(IBeacon(newBeacon).implementation()),
            "ERC1967: beacon implementation is not a contract"
        );
        StorageSlot.getAddressSlot(_BEACON_SLOT).value = newBeacon;
    }
    /**
     * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
     * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
     *
     * Emits a {BeaconUpgraded} event.
     */
    function _upgradeBeaconToAndCall(
        address newBeacon,
        bytes memory data,
        bool forceCall
    ) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);
        if (data.length > 0 || forceCall) {
            Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
        }
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/Proxy.sol)
pragma solidity ^0.8.0;
/**
 * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
 * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
 * be specified by overriding the virtual {_implementation} function.
 *
 * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
 * different contract through the {_delegate} function.
 *
 * The success and return data of the delegated call will be returned back to the caller of the proxy.
 */
abstract contract Proxy {
    /**
     * @dev Delegates the current call to `implementation`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _delegate(address implementation) internal virtual {
        assembly {
            // Copy msg.data. We take full control of memory in this inline assembly
            // block because it will not return to Solidity code. We overwrite the
            // Solidity scratch pad at memory position 0.
            calldatacopy(0, 0, calldatasize())
            // Call the implementation.
            // out and outsize are 0 because we don't know the size yet.
            let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
            // Copy the returned data.
            returndatacopy(0, 0, returndatasize())
            switch result
            // delegatecall returns 0 on error.
            case 0 {
                revert(0, returndatasize())
            }
            default {
                return(0, returndatasize())
            }
        }
    }
    /**
     * @dev This is a virtual function that should be overridden so it returns the address to which the fallback function
     * and {_fallback} should delegate.
     */
    function _implementation() internal view virtual returns (address);
    /**
     * @dev Delegates the current call to the address returned by `_implementation()`.
     *
     * This function does not return to its internal call site, it will return directly to the external caller.
     */
    function _fallback() internal virtual {
        _beforeFallback();
        _delegate(_implementation());
    }
    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
     * function in the contract matches the call data.
     */
    fallback() external payable virtual {
        _fallback();
    }
    /**
     * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if call data
     * is empty.
     */
    receive() external payable virtual {
        _fallback();
    }
    /**
     * @dev Hook that is called before falling back to the implementation. Can happen as part of a manual `_fallback`
     * call, or as part of the Solidity `fallback` or `receive` functions.
     *
     * If overridden should call `super._beforeFallback()`.
     */
    function _beforeFallback() internal virtual {}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
pragma solidity ^0.8.0;
/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {BeaconProxy} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.
        return account.code.length > 0;
    }
    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");
        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }
    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }
    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }
    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }
    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)
pragma solidity ^0.8.0;
/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }
    struct BooleanSlot {
        bool value;
    }
    struct Bytes32Slot {
        bytes32 value;
    }
    struct Uint256Slot {
        uint256 value;
    }
    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {Enjoy} from "_imagine/mint/Enjoy.sol";
import {ERC1967Proxy} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Proxy.sol";
/*
             ░░░░░░░░░░░░░░              
        ░░▒▒░░░░░░░░░░░░░░░░░░░░        
      ░░▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░      
    ░░▒▒▒▒░░░░░░░░░░░░░░    ░░░░░░░░    
   ░▓▓▒▒▒▒░░░░░░░░░░░░        ░░░░░░░    
  ░▓▓▓▒▒▒▒░░░░░░░░░░░░        ░░░░░░░░  
  ░▓▓▓▒▒▒▒░░░░░░░░░░░░░░    ░░░░░░░░░░  
  ░▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░  
  ░▓▓▓▓▓▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░  
   ░▓▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░  
    ░░▓▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░    
    ░░▓▓▓▓▓▓▒▒▒▒▒▒▒▒░░░░░░░░░▒▒▒▒▒░░    
      ░░▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░      
          ░░▓▓▓▓▓▓▓▓▓▓▓▓▒▒░░░          
               OURS TRULY,
 */
/// Imagine. Mint. Enjoy.
/// @notice Imagine. Mint. Enjoy.
/// @author ZORA @iainnash / @tbtstl
contract Zora1155 is Enjoy, ERC1967Proxy {
    constructor(address _logic) ERC1967Proxy(_logic, "") {}
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;

/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <[email protected]>
interface IProxy {
    function masterCopy() external view returns (address);
}

/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafeProxy {
    // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
    // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
    address internal singleton;

    /// @dev Constructor function sets address of singleton contract.
    /// @param _singleton Singleton address.
    constructor(address _singleton) {
        require(_singleton != address(0), "Invalid singleton address provided");
        singleton = _singleton;
    }

    /// @dev Fallback function forwards all transactions and returns all received return data.
    fallback() external payable {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let _singleton := and(sload(0), 0xffffffffffffffffffffffffffffffffffffffff)
            // 0xa619486e == keccak("masterCopy()"). The value is right padded to 32-bytes with 0s
            if eq(calldataload(0), 0xa619486e00000000000000000000000000000000000000000000000000000000) {
                mstore(0, _singleton)
                return(0, 0x20)
            }
            calldatacopy(0, 0, calldatasize())
            let success := delegatecall(gas(), _singleton, 0, calldatasize(), 0, 0)
            returndatacopy(0, 0, returndatasize())
            if eq(success, 0) {
                revert(0, returndatasize())
            }
            return(0, returndatasize())
        }
    }
}

/// @title Proxy Factory - Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
/// @author Stefan George - <[email protected]>
contract GnosisSafeProxyFactory {
    event ProxyCreation(GnosisSafeProxy proxy, address singleton);

    /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
    /// @param singleton Address of singleton contract.
    /// @param data Payload for message call sent to new proxy contract.
    function createProxy(address singleton, bytes memory data) public returns (GnosisSafeProxy proxy) {
        proxy = new GnosisSafeProxy(singleton);
        if (data.length > 0)
            // solhint-disable-next-line no-inline-assembly
            assembly {
                if eq(call(gas(), proxy, 0, add(data, 0x20), mload(data), 0, 0), 0) {
                    revert(0, 0)
                }
            }
        emit ProxyCreation(proxy, singleton);
    }

    /// @dev Allows to retrieve the runtime code of a deployed Proxy. This can be used to check that the expected Proxy was deployed.
    function proxyRuntimeCode() public pure returns (bytes memory) {
        return type(GnosisSafeProxy).runtimeCode;
    }

    /// @dev Allows to retrieve the creation code used for the Proxy deployment. With this it is easily possible to calculate predicted address.
    function proxyCreationCode() public pure returns (bytes memory) {
        return type(GnosisSafeProxy).creationCode;
    }

    /// @dev Allows to create new proxy contact using CREATE2 but it doesn't run the initializer.
    ///      This method is only meant as an utility to be called from other methods
    /// @param _singleton Address of singleton contract.
    /// @param initializer Payload for message call sent to new proxy contract.
    /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
    function deployProxyWithNonce(
        address _singleton,
        bytes memory initializer,
        uint256 saltNonce
    ) internal returns (GnosisSafeProxy proxy) {
        // If the initializer changes the proxy address should change too. Hashing the initializer data is cheaper than just concatinating it
        bytes32 salt = keccak256(abi.encodePacked(keccak256(initializer), saltNonce));
        bytes memory deploymentData = abi.encodePacked(type(GnosisSafeProxy).creationCode, uint256(uint160(_singleton)));
        // solhint-disable-next-line no-inline-assembly
        assembly {
            proxy := create2(0x0, add(0x20, deploymentData), mload(deploymentData), salt)
        }
        require(address(proxy) != address(0), "Create2 call failed");
    }

    /// @dev Allows to create new proxy contact and execute a message call to the new proxy within one transaction.
    /// @param _singleton Address of singleton contract.
    /// @param initializer Payload for message call sent to new proxy contract.
    /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
    function createProxyWithNonce(
        address _singleton,
        bytes memory initializer,
        uint256 saltNonce
    ) public returns (GnosisSafeProxy proxy) {
        proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
        if (initializer.length > 0)
            // solhint-disable-next-line no-inline-assembly
            assembly {
                if eq(call(gas(), proxy, 0, add(initializer, 0x20), mload(initializer), 0, 0), 0) {
                    revert(0, 0)
                }
            }
        emit ProxyCreation(proxy, _singleton);
    }

    /// @dev Allows to create new proxy contact, execute a message call to the new proxy and call a specified callback within one transaction
    /// @param _singleton Address of singleton contract.
    /// @param initializer Payload for message call sent to new proxy contract.
    /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
    /// @param callback Callback that will be invoced after the new proxy contract has been successfully deployed and initialized.
    function createProxyWithCallback(
        address _singleton,
        bytes memory initializer,
        uint256 saltNonce,
        IProxyCreationCallback callback
    ) public returns (GnosisSafeProxy proxy) {
        uint256 saltNonceWithCallback = uint256(keccak256(abi.encodePacked(saltNonce, callback)));
        proxy = createProxyWithNonce(_singleton, initializer, saltNonceWithCallback);
        if (address(callback) != address(0)) callback.proxyCreated(proxy, _singleton, initializer, saltNonce);
    }

    /// @dev Allows to get the address for a new proxy contact created via `createProxyWithNonce`
    ///      This method is only meant for address calculation purpose when you use an initializer that would revert,
    ///      therefore the response is returned with a revert. When calling this method set `from` to the address of the proxy factory.
    /// @param _singleton Address of singleton contract.
    /// @param initializer Payload for message call sent to new proxy contract.
    /// @param saltNonce Nonce that will be used to generate the salt to calculate the address of the new proxy contract.
    function calculateCreateProxyWithNonceAddress(
        address _singleton,
        bytes calldata initializer,
        uint256 saltNonce
    ) external returns (GnosisSafeProxy proxy) {
        proxy = deployProxyWithNonce(_singleton, initializer, saltNonce);
        revert(string(abi.encodePacked(proxy)));
    }
}

interface IProxyCreationCallback {
    function proxyCreated(
        GnosisSafeProxy proxy,
        address _singleton,
        bytes calldata initializer,
        uint256 saltNonce
    ) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)
pragma solidity ^0.8.0;
import "../utils/introspection/IERC165.sol";
/**
 * @dev Interface for the NFT Royalty Standard.
 *
 * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
 * support for royalty payments across all NFT marketplaces and ecosystem participants.
 *
 * _Available since v4.5._
 */
interface IERC2981 is IERC165 {
    /**
     * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
     * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
     */
    function royaltyInfo(uint256 tokenId, uint256 salePrice)
        external
        view
        returns (address receiver, uint256 royaltyAmount);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.
        return account.code.length > 0;
    }
    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");
        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }
    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }
    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }
    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }
    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1155MetadataURI.sol)
pragma solidity ^0.8.0;
import "../token/ERC1155/extensions/IERC1155MetadataURIUpgradeable.sol";
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)
pragma solidity ^0.8.0;
import "../utils/introspection/IERC165Upgradeable.sol";
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
pragma solidity ^0.8.0;
/**
 * @dev ERC1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822ProxiableUpgradeable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol)
pragma solidity ^0.8.2;
import "../beacon/IBeaconUpgradeable.sol";
import "../../interfaces/draft-IERC1822Upgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/StorageSlotUpgradeable.sol";
import "../utils/Initializable.sol";
/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[EIP1967] slots.
 *
 * _Available since v4.1._
 *
 * @custom:oz-upgrades-unsafe-allow delegatecall
 */
abstract contract ERC1967UpgradeUpgradeable is Initializable {
    function __ERC1967Upgrade_init() internal onlyInitializing {
    }
    function __ERC1967Upgrade_init_unchained() internal onlyInitializing {
    }
    // This is the keccak-256 hash of "eip1967.proxy.rollback" subtracted by 1
    bytes32 private constant _ROLLBACK_SLOT = 0x4910fdfa16fed3260ed0e7147f7cc6da11a60208b5b9406d12a635614ffd9143;
    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);
    /**
     * @dev Returns the current implementation address.
     */
    function _getImplementation() internal view returns (address) {
        return StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value;
    }
    /**
     * @dev Stores a new address in the EIP1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        require(AddressUpgradeable.isContract(newImplementation), "ERC1967: new implementation is not a contract");
        StorageSlotUpgradeable.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
    }
    /**
     * @dev Perform implementation upgrade
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeTo(address newImplementation) internal {
        _setImplementation(newImplementation);
        emit Upgraded(newImplementation);
    }
    /**
     * @dev Perform implementation upgrade with additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCall(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        _upgradeTo(newImplementation);
        if (data.length > 0 || forceCall) {
            _functionDelegateCall(newImplementation, data);
        }
    }
    /**
     * @dev Perform implementation upgrade with security checks for UUPS proxies, and additional setup call.
     *
     * Emits an {Upgraded} event.
     */
    function _upgradeToAndCallUUPS(
        address newImplementation,
        bytes memory data,
        bool forceCall
    ) internal {
        // Upgrades from old implementations will perform a rollback test. This test requires the new
        // implementation to upgrade back to the old, non-ERC1822 compliant, implementation. Removing
        // this special case will break upgrade paths from old UUPS implementation to new ones.
        if (StorageSlotUpgradeable.getBooleanSlot(_ROLLBACK_SLOT).value) {
            _setImplementation(newImplementation);
        } else {
            try IERC1822ProxiableUpgradeable(newImplementation).proxiableUUID() returns (bytes32 slot) {
                require(slot == _IMPLEMENTATION_SLOT, "ERC1967Upgrade: unsupported proxiableUUID");
            } catch {
                revert("ERC1967Upgrade: new implementation is not UUPS");
            }
            _upgradeToAndCall(newImplementation, data, forceCall);
        }
    }
    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1, and is
     * validated in the constructor.
     */
    bytes32 internal constant _ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);
    /**
     * @dev Returns the current admin.
     */
    function _getAdmin() internal view returns (address) {
        return StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value;
    }
    /**
     * @dev Stores a new address in the EIP1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        require(newAdmin != address(0), "ERC1967: new admin is the zero address");
        StorageSlotUpgradeable.getAddressSlot(_ADMIN_SLOT).value = newAdmin;
    }
    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {AdminChanged} event.
     */
    function _changeAdmin(address newAdmin) internal {
        emit AdminChanged(_getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }
    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is bytes32(uint256(keccak256('eip1967.proxy.beacon')) - 1)) and is validated in the constructor.
     */
    bytes32 internal constant _BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
    /**
     * @dev Emitted when the beacon is upgraded.
     */
    event BeaconUpgraded(address indexed beacon);
    /**
     * @dev Returns the current beacon.
     */
    function _getBeacon() internal view returns (address) {
        return StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value;
    }
    /**
     * @dev Stores a new beacon in the EIP1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        require(AddressUpgradeable.isContract(newBeacon), "ERC1967: new beacon is not a contract");
        require(
            AddressUpgradeable.isContract(IBeaconUpgradeable(newBeacon).implementation()),
            "ERC1967: beacon implementation is not a contract"
        );
        StorageSlotUpgradeable.getAddressSlot(_BEACON_SLOT).value = newBeacon;
    }
    /**
     * @dev Perform beacon upgrade with additional setup call. Note: This upgrades the address of the beacon, it does
     * not upgrade the implementation contained in the beacon (see {UpgradeableBeacon-_setImplementation} for that).
     *
     * Emits a {BeaconUpgraded} event.
     */
    function _upgradeBeaconToAndCall(
        address newBeacon,
        bytes memory data,
        bool forceCall
    ) internal {
        _setBeacon(newBeacon);
        emit BeaconUpgraded(newBeacon);
        if (data.length > 0 || forceCall) {
            _functionDelegateCall(IBeaconUpgradeable(newBeacon).implementation(), data);
        }
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function _functionDelegateCall(address target, bytes memory data) private returns (bytes memory) {
        require(AddressUpgradeable.isContract(target), "Address: delegate call to non-contract");
        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return AddressUpgradeable.verifyCallResult(success, returndata, "Address: low-level delegate call failed");
    }
    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (proxy/beacon/IBeacon.sol)
pragma solidity ^0.8.0;
/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeaconUpgradeable {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {BeaconProxy} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;
    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;
    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);
    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
     * constructor.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }
    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: setting the version to 255 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }
    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }
    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized < type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }
    /**
     * @dev Internal function that returns the initialized version. Returns `_initialized`
     */
    function _getInitializedVersion() internal view returns (uint8) {
        return _initialized;
    }
    /**
     * @dev Internal function that returns the initialized version. Returns `_initializing`
     */
    function _isInitializing() internal view returns (bool) {
        return _initializing;
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (proxy/utils/UUPSUpgradeable.sol)
pragma solidity ^0.8.0;
import "../../interfaces/draft-IERC1822Upgradeable.sol";
import "../ERC1967/ERC1967UpgradeUpgradeable.sol";
import "./Initializable.sol";
/**
 * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
 * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
 *
 * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
 * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
 * `UUPSUpgradeable` with a custom implementation of upgrades.
 *
 * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
 *
 * _Available since v4.1._
 */
abstract contract UUPSUpgradeable is Initializable, IERC1822ProxiableUpgradeable, ERC1967UpgradeUpgradeable {
    function __UUPSUpgradeable_init() internal onlyInitializing {
    }
    function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
    }
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
    address private immutable __self = address(this);
    /**
     * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
     * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
     * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
     * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
     * fail.
     */
    modifier onlyProxy() {
        require(address(this) != __self, "Function must be called through delegatecall");
        require(_getImplementation() == __self, "Function must be called through active proxy");
        _;
    }
    /**
     * @dev Check that the execution is not being performed through a delegate call. This allows a function to be
     * callable on the implementing contract but not through proxies.
     */
    modifier notDelegated() {
        require(address(this) == __self, "UUPSUpgradeable: must not be called through delegatecall");
        _;
    }
    /**
     * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the
     * implementation. It is used to validate the implementation's compatibility when performing an upgrade.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
     */
    function proxiableUUID() external view virtual override notDelegated returns (bytes32) {
        return _IMPLEMENTATION_SLOT;
    }
    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     */
    function upgradeTo(address newImplementation) external virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallUUPS(newImplementation, new bytes(0), false);
    }
    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
     * encoded in `data`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) external payable virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallUUPS(newImplementation, data, true);
    }
    /**
     * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
     * {upgradeTo} and {upgradeToAndCall}.
     *
     * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
     *
     * ```solidity
     * function _authorizeUpgrade(address) internal override onlyOwner {}
     * ```
     */
    function _authorizeUpgrade(address newImplementation) internal virtual;
    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuardUpgradeable is Initializable {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.
    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;
    uint256 private _status;
    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }
    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        _status = _NOT_ENTERED;
    }
    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }
    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }
    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC1155/ERC1155.sol)
pragma solidity ^0.8.0;
import "./IERC1155Upgradeable.sol";
import "./IERC1155ReceiverUpgradeable.sol";
import "./extensions/IERC1155MetadataURIUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
 * @dev Implementation of the basic standard multi-token.
 * See https://eips.ethereum.org/EIPS/eip-1155
 * Originally based on code by Enjin: https://github.com/enjin/erc-1155
 *
 * _Available since v3.1._
 */
contract ERC1155Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC1155Upgradeable, IERC1155MetadataURIUpgradeable {
    using AddressUpgradeable for address;
    // Mapping from token ID to account balances
    mapping(uint256 => mapping(address => uint256)) private _balances;
    // Mapping from account to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;
    // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json
    string private _uri;
    /**
     * @dev See {_setURI}.
     */
    function __ERC1155_init(string memory uri_) internal onlyInitializing {
        __ERC1155_init_unchained(uri_);
    }
    function __ERC1155_init_unchained(string memory uri_) internal onlyInitializing {
        _setURI(uri_);
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
        return
            interfaceId == type(IERC1155Upgradeable).interfaceId ||
            interfaceId == type(IERC1155MetadataURIUpgradeable).interfaceId ||
            super.supportsInterface(interfaceId);
    }
    /**
     * @dev See {IERC1155MetadataURI-uri}.
     *
     * This implementation returns the same URI for *all* token types. It relies
     * on the token type ID substitution mechanism
     * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
     *
     * Clients calling this function must replace the `\\{id\\}` substring with the
     * actual token type ID.
     */
    function uri(uint256) public view virtual override returns (string memory) {
        return _uri;
    }
    /**
     * @dev See {IERC1155-balanceOf}.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {
        require(account != address(0), "ERC1155: address zero is not a valid owner");
        return _balances[id][account];
    }
    /**
     * @dev See {IERC1155-balanceOfBatch}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] memory accounts, uint256[] memory ids)
        public
        view
        virtual
        override
        returns (uint256[] memory)
    {
        require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch");
        uint256[] memory batchBalances = new uint256[](accounts.length);
        for (uint256 i = 0; i < accounts.length; ++i) {
            batchBalances[i] = balanceOf(accounts[i], ids[i]);
        }
        return batchBalances;
    }
    /**
     * @dev See {IERC1155-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }
    /**
     * @dev See {IERC1155-isApprovedForAll}.
     */
    function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[account][operator];
    }
    /**
     * @dev See {IERC1155-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) public virtual override {
        require(
            from == _msgSender() || isApprovedForAll(from, _msgSender()),
            "ERC1155: caller is not token owner or approved"
        );
        _safeTransferFrom(from, to, id, amount, data);
    }
    /**
     * @dev See {IERC1155-safeBatchTransferFrom}.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) public virtual override {
        require(
            from == _msgSender() || isApprovedForAll(from, _msgSender()),
            "ERC1155: caller is not token owner or approved"
        );
        _safeBatchTransferFrom(from, to, ids, amounts, data);
    }
    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function _safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: transfer to the zero address");
        address operator = _msgSender();
        uint256[] memory ids = _asSingletonArray(id);
        uint256[] memory amounts = _asSingletonArray(amount);
        _beforeTokenTransfer(operator, from, to, ids, amounts, data);
        uint256 fromBalance = _balances[id][from];
        require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
        unchecked {
            _balances[id][from] = fromBalance - amount;
        }
        _balances[id][to] += amount;
        emit TransferSingle(operator, from, to, id, amount);
        _afterTokenTransfer(operator, from, to, ids, amounts, data);
        _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);
    }
    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function _safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
        require(to != address(0), "ERC1155: transfer to the zero address");
        address operator = _msgSender();
        _beforeTokenTransfer(operator, from, to, ids, amounts, data);
        for (uint256 i = 0; i < ids.length; ++i) {
            uint256 id = ids[i];
            uint256 amount = amounts[i];
            uint256 fromBalance = _balances[id][from];
            require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
            unchecked {
                _balances[id][from] = fromBalance - amount;
            }
            _balances[id][to] += amount;
        }
        emit TransferBatch(operator, from, to, ids, amounts);
        _afterTokenTransfer(operator, from, to, ids, amounts, data);
        _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data);
    }
    /**
     * @dev Sets a new URI for all token types, by relying on the token type ID
     * substitution mechanism
     * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
     *
     * By this mechanism, any occurrence of the `\\{id\\}` substring in either the
     * URI or any of the amounts in the JSON file at said URI will be replaced by
     * clients with the token type ID.
     *
     * For example, the `https://token-cdn-domain/\\{id\\}.json` URI would be
     * interpreted by clients as
     * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json`
     * for token type ID 0x4cce0.
     *
     * See {uri}.
     *
     * Because these URIs cannot be meaningfully represented by the {URI} event,
     * this function emits no events.
     */
    function _setURI(string memory newuri) internal virtual {
        _uri = newuri;
    }
    /**
     * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function _mint(
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: mint to the zero address");
        address operator = _msgSender();
        uint256[] memory ids = _asSingletonArray(id);
        uint256[] memory amounts = _asSingletonArray(amount);
        _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);
        _balances[id][to] += amount;
        emit TransferSingle(operator, address(0), to, id, amount);
        _afterTokenTransfer(operator, address(0), to, ids, amounts, data);
        _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data);
    }
    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function _mintBatch(
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: mint to the zero address");
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
        address operator = _msgSender();
        _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);
        for (uint256 i = 0; i < ids.length; i++) {
            _balances[ids[i]][to] += amounts[i];
        }
        emit TransferBatch(operator, address(0), to, ids, amounts);
        _afterTokenTransfer(operator, address(0), to, ids, amounts, data);
        _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);
    }
    /**
     * @dev Destroys `amount` tokens of token type `id` from `from`
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `from` must have at least `amount` tokens of token type `id`.
     */
    function _burn(
        address from,
        uint256 id,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC1155: burn from the zero address");
        address operator = _msgSender();
        uint256[] memory ids = _asSingletonArray(id);
        uint256[] memory amounts = _asSingletonArray(amount);
        _beforeTokenTransfer(operator, from, address(0), ids, amounts, "");
        uint256 fromBalance = _balances[id][from];
        require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
        unchecked {
            _balances[id][from] = fromBalance - amount;
        }
        emit TransferSingle(operator, from, address(0), id, amount);
        _afterTokenTransfer(operator, from, address(0), ids, amounts, "");
    }
    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     */
    function _burnBatch(
        address from,
        uint256[] memory ids,
        uint256[] memory amounts
    ) internal virtual {
        require(from != address(0), "ERC1155: burn from the zero address");
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
        address operator = _msgSender();
        _beforeTokenTransfer(operator, from, address(0), ids, amounts, "");
        for (uint256 i = 0; i < ids.length; i++) {
            uint256 id = ids[i];
            uint256 amount = amounts[i];
            uint256 fromBalance = _balances[id][from];
            require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
            unchecked {
                _balances[id][from] = fromBalance - amount;
            }
        }
        emit TransferBatch(operator, from, address(0), ids, amounts);
        _afterTokenTransfer(operator, from, address(0), ids, amounts, "");
    }
    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits an {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC1155: setting approval status for self");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }
    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning, as well as batched variants.
     *
     * The same hook is called on both single and batched variants. For single
     * transfers, the length of the `ids` and `amounts` arrays will be 1.
     *
     * Calling conditions (for each `id` and `amount` pair):
     *
     * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * of token type `id` will be  transferred to `to`.
     * - When `from` is zero, `amount` tokens of token type `id` will be minted
     * for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`
     * will be burned.
     * - `from` and `to` are never both zero.
     * - `ids` and `amounts` have the same, non-zero length.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {}
    /**
     * @dev Hook that is called after any token transfer. This includes minting
     * and burning, as well as batched variants.
     *
     * The same hook is called on both single and batched variants. For single
     * transfers, the length of the `id` and `amount` arrays will be 1.
     *
     * Calling conditions (for each `id` and `amount` pair):
     *
     * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * of token type `id` will be  transferred to `to`.
     * - When `from` is zero, `amount` tokens of token type `id` will be minted
     * for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`
     * will be burned.
     * - `from` and `to` are never both zero.
     * - `ids` and `amounts` have the same, non-zero length.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {}
    function _doSafeTransferAcceptanceCheck(
        address operator,
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) private {
        if (to.isContract()) {
            try IERC1155ReceiverUpgradeable(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) {
                if (response != IERC1155ReceiverUpgradeable.onERC1155Received.selector) {
                    revert("ERC1155: ERC1155Receiver rejected tokens");
                }
            } catch Error(string memory reason) {
                revert(reason);
            } catch {
                revert("ERC1155: transfer to non-ERC1155Receiver implementer");
            }
        }
    }
    function _doSafeBatchTransferAcceptanceCheck(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) private {
        if (to.isContract()) {
            try IERC1155ReceiverUpgradeable(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns (
                bytes4 response
            ) {
                if (response != IERC1155ReceiverUpgradeable.onERC1155BatchReceived.selector) {
                    revert("ERC1155: ERC1155Receiver rejected tokens");
                }
            } catch Error(string memory reason) {
                revert(reason);
            } catch {
                revert("ERC1155: transfer to non-ERC1155Receiver implementer");
            }
        }
    }
    function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) {
        uint256[] memory array = new uint256[](1);
        array[0] = element;
        return array;
    }
    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[47] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
 * @dev _Available since v3.1._
 */
interface IERC1155ReceiverUpgradeable is IERC165Upgradeable {
    /**
     * @dev Handles the receipt of a single ERC1155 token type. This function is
     * called at the end of a `safeTransferFrom` after the balance has been updated.
     *
     * NOTE: To accept the transfer, this must return
     * `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
     * (i.e. 0xf23a6e61, or its own function selector).
     *
     * @param operator The address which initiated the transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param id The ID of the token being transferred
     * @param value The amount of tokens being transferred
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
     */
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);
    /**
     * @dev Handles the receipt of a multiple ERC1155 token types. This function
     * is called at the end of a `safeBatchTransferFrom` after the balances have
     * been updated.
     *
     * NOTE: To accept the transfer(s), this must return
     * `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
     * (i.e. 0xbc197c81, or its own function selector).
     *
     * @param operator The address which initiated the batch transfer (i.e. msg.sender)
     * @param from The address which previously owned the token
     * @param ids An array containing ids of each token being transferred (order and length must match values array)
     * @param values An array containing amounts of each token being transferred (order and length must match ids array)
     * @param data Additional data with no specified format
     * @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
     */
    function onERC1155BatchReceived(
        address operator,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external returns (bytes4);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
 * @dev Required interface of an ERC1155 compliant contract, as defined in the
 * https://eips.ethereum.org/EIPS/eip-1155[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155Upgradeable is IERC165Upgradeable {
    /**
     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
     */
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
    /**
     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
     * transfers.
     */
    event TransferBatch(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256[] ids,
        uint256[] values
    );
    /**
     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
     * `approved`.
     */
    event ApprovalForAll(address indexed account, address indexed operator, bool approved);
    /**
     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
     *
     * If an {URI} event was emitted for `id`, the standard
     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
     * returned by {IERC1155MetadataURI-uri}.
     */
    event URI(string value, uint256 indexed id);
    /**
     * @dev Returns the amount of tokens of token type `id` owned by `account`.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) external view returns (uint256);
    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
        external
        view
        returns (uint256[] memory);
    /**
     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
     *
     * Emits an {ApprovalForAll} event.
     *
     * Requirements:
     *
     * - `operator` cannot be the caller.
     */
    function setApprovalForAll(address operator, bool approved) external;
    /**
     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address account, address operator) external view returns (bool);
    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes calldata data
    ) external;
    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata amounts,
        bytes calldata data
    ) external;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/IERC1155MetadataURI.sol)
pragma solidity ^0.8.0;
import "../IERC1155Upgradeable.sol";
/**
 * @dev Interface of the optional ERC1155MetadataExtension interface, as defined
 * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155MetadataURIUpgradeable is IERC1155Upgradeable {
    /**
     * @dev Returns the URI for token type `id`.
     *
     * If the `\\{id\\}` substring is present in the URI, it must be replaced by
     * clients with the actual token type ID.
     */
    function uri(uint256 id) external view returns (string memory);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.
        return account.code.length > 0;
    }
    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");
        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }
    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }
    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }
    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }
    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }
    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/StorageSlot.sol)
pragma solidity ^0.8.0;
/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC1967 implementation slot:
 * ```
 * contract ERC1967 {
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(Address.isContract(newImplementation), "ERC1967: new implementation is not a contract");
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * _Available since v4.1 for `address`, `bool`, `bytes32`, and `uint256`._
 */
library StorageSlotUpgradeable {
    struct AddressSlot {
        address value;
    }
    struct BooleanSlot {
        bool value;
    }
    struct Bytes32Slot {
        bytes32 value;
    }
    struct Uint256Slot {
        uint256 value;
    }
    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165Upgradeable is Initializable, IERC165Upgradeable {
    function __ERC165_init() internal onlyInitializing {
    }
    function __ERC165_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165Upgradeable).interfaceId;
    }
    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165Upgradeable {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {TransferHelperUtils} from "../utils/TransferHelperUtils.sol";
import {IMintFeeManager} from "../interfaces/IMintFeeManager.sol";
/// @title MintFeeManager
/// @notice Manages mint fees for an 1155 contract
contract MintFeeManager is IMintFeeManager {
    uint256 public immutable mintFee;
    address public immutable mintFeeRecipient;
    constructor(uint256 _mintFee, address _mintFeeRecipient) {
        // Set fixed finders fee
        if (_mintFee >= 0.1 ether) {
            revert MintFeeCannotBeMoreThanZeroPointOneETH(_mintFee);
        }
        if (_mintFeeRecipient == address(0) && _mintFee > 0) {
            revert CannotSetMintFeeToZeroAddress();
        }
        mintFeeRecipient = _mintFeeRecipient;
        mintFee = _mintFee;
    }
    /// @notice Sends the mint fee to the mint fee recipient and returns the amount of ETH remaining that can be used in this transaction
    /// @param _quantity The amount of toknens being minted
    function _handleFeeAndGetValueSent(uint256 _quantity) internal returns (uint256 ethValueSent) {
        ethValueSent = msg.value;
        // Handle mint fee
        if (mintFeeRecipient != address(0)) {
            uint256 totalFee = mintFee * _quantity;
            ethValueSent -= totalFee;
            if (!TransferHelperUtils.safeSendETHLowLimit(mintFeeRecipient, totalFee)) {
                revert CannotSendMintFee(mintFeeRecipient, totalFee);
            }
        }
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
/// @notice Creator Commands used by minter modules passed back to the main modules
interface ICreatorCommands {
    /// @notice This enum is used to define supported creator action types.
    /// This can change in the future
    enum CreatorActions {
        // No operation - also the default for mintings that may not return a command
        NO_OP,
        // Send ether
        SEND_ETH,
        // Mint operation
        MINT
    }
    /// @notice This command is for
    struct Command {
        // Method for operation
        CreatorActions method;
        // Arguments used for this operation
        bytes args;
    }
    /// @notice This command set is returned from the minter back to the user
    struct CommandSet {
        Command[] commands;
        uint256 at;
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
/// @notice Generic control interface for bit-based permissions-control
interface ICreatorPermissionControl {
    /// @notice Emitted when permissions are updated
    event UpdatedPermissions(uint256 indexed tokenId, address indexed user, uint256 indexed permissions);
    /// @notice Public interface to get permissions given a token id and a user address
    /// @return Returns raw permission bits
    function getPermissions(uint256 tokenId, address user) external view returns (uint256);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {IRenderer1155} from "./IRenderer1155.sol";
/// @notice Interface for creator renderer controls
interface ICreatorRendererControl {
    /// @notice Get the custom renderer contract (if any) for the given token id
    /// @dev Reverts if not custom renderer is set for this token
    function getCustomRenderer(uint256 tokenId) external view returns (IRenderer1155 renderer);
    error NoRendererForToken(uint256 tokenId);
    error RendererNotValid(address renderer);
    event RendererUpdated(uint256 indexed tokenId, address indexed renderer, address indexed user);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {IERC2981} from "@openzeppelin/contracts/interfaces/IERC2981.sol";
interface ICreatorRoyaltiesControl is IERC2981 {
    /// @notice The RoyaltyConfiguration struct is used to store the royalty configuration for a given token.
    /// @param royaltyMintSchedule Every nth token will go to the royalty recipient.
    /// @param royaltyBPS The royalty amount in basis points for secondary sales.
    /// @param royaltyRecipient The address that will receive the royalty payments.
    struct RoyaltyConfiguration {
        uint32 royaltyMintSchedule;
        uint32 royaltyBPS;
        address royaltyRecipient;
    }
    /// @notice Thrown when a user tries to have 100% supply royalties
    error InvalidMintSchedule();
    /// @notice Event emitted when royalties are updated
    event UpdatedRoyalties(uint256 indexed tokenId, address indexed user, RoyaltyConfiguration configuration);
    /// @notice External data getter to get royalties for a token
    /// @param tokenId tokenId to get royalties configuration for
    function getRoyalties(uint256 tokenId) external view returns (RoyaltyConfiguration memory);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
interface ILegacyNaming {
    function name() external returns (string memory);
    function symbol() external returns (string memory);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
interface IMintFeeManager {
    error MintFeeCannotBeMoreThanZeroPointOneETH(uint256 mintFeeBPS);
    error CannotSendMintFee(address mintFeeRecipient, uint256 mintFee);
    error CannotSetMintFeeToZeroAddress();
    function mintFee() external view returns (uint256);
    function mintFeeRecipient() external view returns (address);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {IERC165Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC165Upgradeable.sol";
import {ICreatorCommands} from "./ICreatorCommands.sol";
/// @notice Minter standard interface
/// @dev Minters need to confirm to the ERC165 selector of type(IMinter1155).interfaceId
interface IMinter1155 is IERC165Upgradeable {
    function requestMint(
        address sender,
        uint256 tokenId,
        uint256 quantity,
        uint256 ethValueSent,
        bytes calldata minterArguments
    ) external returns (ICreatorCommands.CommandSet memory commands);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
interface IOwnable {
    function owner() external returns (address);
    event OwnershipTransferred(address lastOwner, address newOwner);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {IERC165Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC165Upgradeable.sol";
/// @dev IERC165 type required
interface IRenderer1155 is IERC165Upgradeable {
    /// @notice Called for assigned tokenId, or when token id is globally set to a renderer
    /// @dev contract target is assumed to be msg.sender
    /// @param tokenId token id to get uri for
    function uri(uint256 tokenId) external view returns (string memory);
    /// @notice Only called for tokenId == 0
    /// @dev contract target is assumed to be msg.sender
    function contractURI() external view returns (string memory);
    /// @notice Sets up renderer from contract
    /// @param initData data to setup renderer with
    /// @dev contract target is assumed to be msg.sender
    function setup(bytes memory initData) external;
    // IERC165 type required – set in base helper
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {IERC165Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC165Upgradeable.sol";
interface ITransferHookReceiver is IERC165Upgradeable {
    /// @notice Token transfer batch callback
    /// @param target target contract for transfer
    /// @param operator operator address for transfer
    /// @param from user address for amount transferred
    /// @param to user address for amount transferred
    /// @param ids list of token ids transferred
    /// @param amounts list of values transferred
    /// @param data data as perscribed by 1155 standard
    function onTokenTransferBatch(
        address target,
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) external;
    // IERC165 type required
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
interface IVersionedContract {
    function contractVersion() external returns (string memory);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {IERC165Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC165Upgradeable.sol";
import {IERC1155MetadataURIUpgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC1155MetadataURIUpgradeable.sol";
import {IZoraCreator1155TypesV1} from "../nft/IZoraCreator1155TypesV1.sol";
import {IRenderer1155} from "../interfaces/IRenderer1155.sol";
import {IMinter1155} from "../interfaces/IMinter1155.sol";
import {IOwnable} from "../interfaces/IOwnable.sol";
import {IVersionedContract} from "./IVersionedContract.sol";
import {ICreatorRoyaltiesControl} from "../interfaces/ICreatorRoyaltiesControl.sol";
/*
             ░░░░░░░░░░░░░░              
        ░░▒▒░░░░░░░░░░░░░░░░░░░░        
      ░░▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░      
    ░░▒▒▒▒░░░░░░░░░░░░░░    ░░░░░░░░    
   ░▓▓▒▒▒▒░░░░░░░░░░░░        ░░░░░░░    
  ░▓▓▓▒▒▒▒░░░░░░░░░░░░        ░░░░░░░░  
  ░▓▓▓▒▒▒▒░░░░░░░░░░░░░░    ░░░░░░░░░░  
  ░▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░  
  ░▓▓▓▓▓▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░  
   ░▓▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░  
    ░░▓▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░    
    ░░▓▓▓▓▓▓▒▒▒▒▒▒▒▒░░░░░░░░░▒▒▒▒▒░░    
      ░░▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░      
          ░░▓▓▓▓▓▓▓▓▓▓▓▓▒▒░░░          
               OURS TRULY,
 */
/// @notice Main interface for the ZoraCreator1155 contract
/// @author @iainnash / @tbtstl
interface IZoraCreator1155 is IZoraCreator1155TypesV1, IVersionedContract, IOwnable, IERC1155MetadataURIUpgradeable {
    function PERMISSION_BIT_ADMIN() external returns (uint256);
    function PERMISSION_BIT_MINTER() external returns (uint256);
    function PERMISSION_BIT_SALES() external returns (uint256);
    function PERMISSION_BIT_METADATA() external returns (uint256);
    /// @notice Used to label the configuration update type
    enum ConfigUpdate {
        OWNER,
        FUNDS_RECIPIENT,
        TRANSFER_HOOK
    }
    event ConfigUpdated(address indexed updater, ConfigUpdate indexed updateType, ContractConfig newConfig);
    event UpdatedToken(address indexed from, uint256 indexed tokenId, TokenData tokenData);
    event SetupNewToken(uint256 indexed tokenId, address indexed sender, string newURI, uint256 maxSupply);
    function setOwner(address newOwner) external;
    event ContractRendererUpdated(IRenderer1155 renderer);
    event ContractMetadataUpdated(address indexed updater, string uri, string name);
    event Purchased(address indexed sender, address indexed minter, uint256 indexed tokenId, uint256 quantity, uint256 value);
    error TokenIdMismatch(uint256 expected, uint256 actual);
    error NotAllowedContractBaseIDUpdate();
    error UserMissingRoleForToken(address user, uint256 tokenId, uint256 role);
    error Config_TransferHookNotSupported(address proposedAddress);
    error Mint_InsolventSaleTransfer();
    error Mint_ValueTransferFail();
    error Mint_TokenIDMintNotAllowed();
    error Mint_UnknownCommand();
    error Burn_NotOwnerOrApproved(address operator, address user);
    error NewOwnerNeedsToBeAdmin();
    error Sale_CannotCallNonSalesContract(address targetContract);
    error Sale_CallFailed();
    error Renderer_CallFailed(bytes reason);
    error Renderer_NotValidRendererContract();
    error ETHWithdrawFailed(address recipient, uint256 amount);
    error FundsWithdrawInsolvent(uint256 amount, uint256 contractValue);
    error CannotMintMoreTokens(uint256 tokenId, uint256 quantity, uint256 totalMinted, uint256 maxSupply);
    function initialize(
        string memory newContractURI,
        ICreatorRoyaltiesControl.RoyaltyConfiguration memory defaultRoyaltyConfiguration,
        address payable defaultAdmin,
        bytes[] calldata setupActions
    ) external;
    /// @notice Only allow minting one token id at time
    /// @dev Mint contract function that calls the underlying sales function for commands
    /// @param minter Address for the minter
    /// @param tokenId tokenId to mint, set to 0 for new tokenId
    /// @param quantity to mint
    /// @param minterArguments calldata for the minter contracts
    function mint(IMinter1155 minter, uint256 tokenId, uint256 quantity, bytes calldata minterArguments) external payable;
    function adminMint(address recipient, uint256 tokenId, uint256 quantity, bytes memory data) external;
    function adminMintBatch(address recipient, uint256[] memory tokenIds, uint256[] memory quantities, bytes memory data) external;
    function burnBatch(address user, uint256[] calldata tokenIds, uint256[] calldata amounts) external;
    /// @notice Contract call to setupNewToken
    /// @param tokenURI URI for the token
    /// @param maxSupply maxSupply for the token, set to 0 for open edition
    function setupNewToken(string memory tokenURI, uint256 maxSupply) external returns (uint256 tokenId);
    function updateTokenURI(uint256 tokenId, string memory _newURI) external;
    function updateContractMetadata(string memory _newURI, string memory _newName) external;
    function setTokenMetadataRenderer(uint256 tokenId, IRenderer1155 renderer, bytes calldata setupData) external;
    function contractURI() external view returns (string memory);
    function assumeLastTokenIdMatches(uint256 tokenId) external;
    function updateRoyaltiesForToken(uint256 tokenId, ICreatorRoyaltiesControl.RoyaltyConfiguration memory royaltyConfiguration) external;
    function addPermission(uint256 tokenId, address user, uint256 permissionBits) external;
    function removePermission(uint256 tokenId, address user, uint256 permissionBits) external;
    function isAdminOrRole(address user, uint256 tokenId, uint256 role) external view returns (bool);
    function getTokenInfo(uint256 tokenId) external view returns (TokenData memory);
    function callRenderer(uint256 tokenId, bytes memory data) external;
    function callSale(uint256 tokenId, IMinter1155 salesConfig, bytes memory data) external;
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {ILegacyNaming} from "../interfaces/ILegacyNaming.sol";
import {LegacyNamingStorageV1} from "./LegacyNamingStorageV1.sol";
/// @title LegacyNamingControl
/// @notice Contract for managing the name and symbol of an 1155 contract in the legacy naming scheme
contract LegacyNamingControl is LegacyNamingStorageV1, ILegacyNaming {
    /// @notice The name of the contract
    function name() external view returns (string memory) {
        return _name;
    }
    /// @notice The token symbol of the contract
    function symbol() external pure returns (string memory) {}
    function _setName(string memory _newName) internal {
        _name = _newName;
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
contract LegacyNamingStorageV1 {
    string internal _name;
    uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {ITransferHookReceiver} from "../interfaces/ITransferHookReceiver.sol";
/*
             ░░░░░░░░░░░░░░              
        ░░▒▒░░░░░░░░░░░░░░░░░░░░        
      ░░▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░      
    ░░▒▒▒▒░░░░░░░░░░░░░░    ░░░░░░░░    
   ░▓▓▒▒▒▒░░░░░░░░░░░░        ░░░░░░░    
  ░▓▓▓▒▒▒▒░░░░░░░░░░░░        ░░░░░░░░  
  ░▓▓▓▒▒▒▒░░░░░░░░░░░░░░    ░░░░░░░░░░  
  ░▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░  
  ░▓▓▓▓▓▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░  
   ░▓▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░  
    ░░▓▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░    
    ░░▓▓▓▓▓▓▒▒▒▒▒▒▒▒░░░░░░░░░▒▒▒▒▒░░    
      ░░▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░      
          ░░▓▓▓▓▓▓▓▓▓▓▓▓▒▒░░░          
               OURS TRULY,
 */
/// Imagine. Mint. Enjoy.
/// @notice Interface for types used across the ZoraCreator1155 contract
/// @author @iainnash / @tbtstl
interface IZoraCreator1155TypesV1 {
    /// @notice Used to store individual token data
    struct TokenData {
        string uri;
        uint256 maxSupply;
        uint256 totalMinted;
    }
    /// @notice Used to store contract-level configuration
    struct ContractConfig {
        address owner;
        uint96 __gap1;
        address payable fundsRecipient;
        uint96 __gap2;
        ITransferHookReceiver transferHook;
        uint96 __gap3;
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {ERC1155Upgradeable} from "@openzeppelin/contracts-upgradeable/token/ERC1155/ERC1155Upgradeable.sol";
import {IERC1155MetadataURIUpgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC1155MetadataURIUpgradeable.sol";
import {IERC165Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC165Upgradeable.sol";
import {IZoraCreator1155} from "../interfaces/IZoraCreator1155.sol";
import {ReentrancyGuardUpgradeable} from "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import {ContractVersionBase} from "../version/ContractVersionBase.sol";
import {CreatorPermissionControl} from "../permissions/CreatorPermissionControl.sol";
import {CreatorRendererControl} from "../renderer/CreatorRendererControl.sol";
import {CreatorRoyaltiesControl} from "../royalties/CreatorRoyaltiesControl.sol";
import {ICreatorCommands} from "../interfaces/ICreatorCommands.sol";
import {IMinter1155} from "../interfaces/IMinter1155.sol";
import {IRenderer1155} from "../interfaces/IRenderer1155.sol";
import {ITransferHookReceiver} from "../interfaces/ITransferHookReceiver.sol";
import {IZoraCreator1155} from "../interfaces/IZoraCreator1155.sol";
import {LegacyNamingControl} from "../legacy-naming/LegacyNamingControl.sol";
import {MintFeeManager} from "../fee/MintFeeManager.sol";
import {PublicMulticall} from "../utils/PublicMulticall.sol";
import {SharedBaseConstants} from "../shared/SharedBaseConstants.sol";
import {TransferHelperUtils} from "../utils/TransferHelperUtils.sol";
import {ZoraCreator1155StorageV1} from "./ZoraCreator1155StorageV1.sol";
/// Imagine. Mint. Enjoy.
/// @title ZoraCreator1155Impl
/// @notice The core implementation contract for a creator's 1155 token
/// @author @iainnash / @tbtstl
contract ZoraCreator1155Impl is
    IZoraCreator1155,
    ContractVersionBase,
    ReentrancyGuardUpgradeable,
    PublicMulticall,
    ERC1155Upgradeable,
    MintFeeManager,
    UUPSUpgradeable,
    CreatorRendererControl,
    LegacyNamingControl,
    ZoraCreator1155StorageV1,
    CreatorPermissionControl,
    CreatorRoyaltiesControl
{
    /// @notice This user role allows for any action to be performed
    uint256 public immutable PERMISSION_BIT_ADMIN = 2 ** 1;
    /// @notice This user role allows for only mint actions to be performed
    uint256 public immutable PERMISSION_BIT_MINTER = 2 ** 2;
    /// @notice This user role allows for only managing sales configurations
    uint256 public immutable PERMISSION_BIT_SALES = 2 ** 3;
    /// @notice This user role allows for only managing metadata configuration
    uint256 public immutable PERMISSION_BIT_METADATA = 2 ** 4;
    /// @notice This user role allows for only withdrawing funds and setting funds withdraw address
    uint256 public immutable PERMISSION_BIT_FUNDS_MANAGER = 2 ** 5;
    constructor(uint256 _mintFeeAmount, address _mintFeeRecipient) MintFeeManager(_mintFeeAmount, _mintFeeRecipient) initializer {}
    /// @notice Initializes the contract
    /// @param newContractURI The contract URI
    /// @param defaultRoyaltyConfiguration The default royalty configuration
    /// @param defaultAdmin The default admin to manage the token
    /// @param setupActions The setup actions to run, if any
    function initialize(
        string memory newContractURI,
        RoyaltyConfiguration memory defaultRoyaltyConfiguration,
        address payable defaultAdmin,
        bytes[] calldata setupActions
    ) external nonReentrant initializer {
        // We are not initalizing the OZ 1155 implementation
        // to save contract storage space and runtime
        // since the only thing affected here is the uri.
        // __ERC1155_init("");
        // Setup uups
        __UUPSUpgradeable_init();
        // Setup re-entracy guard
        __ReentrancyGuard_init();
        // Setup contract-default token ID
        _setupDefaultToken(defaultAdmin, newContractURI, defaultRoyaltyConfiguration);
        // Set owner to default admin
        _setOwner(defaultAdmin);
        _setFundsRecipient(defaultAdmin);
        // Run Setup actions
        if (setupActions.length > 0) {
            // Temporarily make sender admin
            _addPermission(CONTRACT_BASE_ID, msg.sender, PERMISSION_BIT_ADMIN);
            // Make calls
            multicall(setupActions);
            // Remove admin
            _removePermission(CONTRACT_BASE_ID, msg.sender, PERMISSION_BIT_ADMIN);
        }
    }
    /// @notice sets up the global configuration for the 1155 contract
    /// @param newContractURI The contract URI
    /// @param defaultRoyaltyConfiguration The default royalty configuration
    function _setupDefaultToken(address defaultAdmin, string memory newContractURI, RoyaltyConfiguration memory defaultRoyaltyConfiguration) internal {
        // Add admin permission to default admin to manage contract
        _addPermission(CONTRACT_BASE_ID, defaultAdmin, PERMISSION_BIT_ADMIN);
        // Mint token ID 0 / don't allow any user mints
        _setupNewToken(newContractURI, 0);
        // Update default royalties
        _updateRoyalties(CONTRACT_BASE_ID, defaultRoyaltyConfiguration);
    }
    /// @notice Updates the royalty configuration for a token
    /// @param tokenId The token ID to update
    /// @param newConfiguration The new royalty configuration
    function updateRoyaltiesForToken(
        uint256 tokenId,
        RoyaltyConfiguration memory newConfiguration
    ) external onlyAdminOrRole(tokenId, PERMISSION_BIT_FUNDS_MANAGER) {
        _updateRoyalties(tokenId, newConfiguration);
    }
    /// @notice remove this function from openzeppelin impl
    /// @dev This makes this internal function a no-op
    function _setURI(string memory newuri) internal virtual override {}
    /// @notice This gets the next token in line to be minted when minting linearly (default behavior) and updates the counter
    function _getAndUpdateNextTokenId() internal returns (uint256) {
        unchecked {
            return nextTokenId++;
        }
    }
    /// @notice Ensure that the next token ID is correct
    /// @dev This reverts if the invariant doesn't match. This is used for multicall token id assumptions
    /// @param lastTokenId The last token ID
    function assumeLastTokenIdMatches(uint256 lastTokenId) external view {
        unchecked {
            if (nextTokenId - 1 != lastTokenId) {
                revert TokenIdMismatch(lastTokenId, nextTokenId - 1);
            }
        }
    }
    /// @notice Checks if a user either has a role for a token or if they are the admin
    /// @dev This is an internal function that is called by the external getter and internal functions
    /// @param user The user to check
    /// @param tokenId The token ID to check
    /// @param role The role to check
    /// @return true or false if the permission exists for the user given the token id
    function _isAdminOrRole(address user, uint256 tokenId, uint256 role) internal view returns (bool) {
        return _hasAnyPermission(tokenId, user, PERMISSION_BIT_ADMIN | role);
    }
    /// @notice Checks if a user either has a role for a token or if they are the admin
    /// @param user The user to check
    /// @param tokenId The token ID to check
    /// @param role The role to check
    /// @return true or false if the permission exists for the user given the token id
    function isAdminOrRole(address user, uint256 tokenId, uint256 role) external view returns (bool) {
        return _isAdminOrRole(user, tokenId, role);
    }
    /// @notice Checks if the user is an admin for the given tokenId
    /// @dev This function reverts if the permission does not exist for the given user and tokenId
    /// @param user user to check
    /// @param tokenId tokenId to check
    /// @param role role to check for admin
    function _requireAdminOrRole(address user, uint256 tokenId, uint256 role) internal view {
        if (!(_hasAnyPermission(tokenId, user, PERMISSION_BIT_ADMIN | role) || _hasAnyPermission(CONTRACT_BASE_ID, user, PERMISSION_BIT_ADMIN))) {
            revert UserMissingRoleForToken(user, tokenId, role);
        }
    }
    /// @notice Checks if the user is an admin
    /// @dev This reverts if the user is not an admin for the given token id or contract
    /// @param user user to check
    /// @param tokenId tokenId to check
    function _requireAdmin(address user, uint256 tokenId) internal view {
        if (!(_hasAnyPermission(tokenId, user, PERMISSION_BIT_ADMIN) || _hasAnyPermission(CONTRACT_BASE_ID, user, PERMISSION_BIT_ADMIN))) {
            revert UserMissingRoleForToken(user, tokenId, PERMISSION_BIT_ADMIN);
        }
    }
    /// @notice Modifier checking if the user is an admin or has a role
    /// @dev This reverts if the msg.sender is not an admin for the given token id or contract
    /// @param tokenId tokenId to check
    /// @param role role to check
    modifier onlyAdminOrRole(uint256 tokenId, uint256 role) {
        _requireAdminOrRole(msg.sender, tokenId, role);
        _;
    }
    /// @notice Modifier checking if the user is an admin
    /// @dev This reverts if the msg.sender is not an admin for the given token id or contract
    /// @param tokenId tokenId to check
    modifier onlyAdmin(uint256 tokenId) {
        _requireAdmin(msg.sender, tokenId);
        _;
    }
    /// @notice Modifier checking if the requested quantity of tokens can be minted for the tokenId
    /// @dev This reverts if the number that can be minted is exceeded
    /// @param tokenId token id to check available allowed quantity
    /// @param quantity requested to be minted
    modifier canMintQuantity(uint256 tokenId, uint256 quantity) {
        _requireCanMintQuantity(tokenId, quantity);
        _;
    }
    /// @notice Only from approved address for burn
    /// @param from address that the tokens will be burned from, validate that this is msg.sender or that msg.sender is approved
    modifier onlyFromApprovedForBurn(address from) {
        if (from != msg.sender && !isApprovedForAll(from, msg.sender)) {
            revert Burn_NotOwnerOrApproved(msg.sender, from);
        }
        _;
    }
    /// @notice Checks if a user can mint a quantity of a token
    /// @dev Reverts if the mint exceeds the allowed quantity (or if the token does not exist)
    /// @param tokenId The token ID to check
    /// @param quantity The quantity of tokens to mint to check
    function _requireCanMintQuantity(uint256 tokenId, uint256 quantity) internal view {
        TokenData memory tokenInformation = tokens[tokenId];
        if (tokenInformation.totalMinted + quantity > tokenInformation.maxSupply) {
            revert CannotMintMoreTokens(tokenId, quantity, tokenInformation.totalMinted, tokenInformation.maxSupply);
        }
    }
    /// @notice Set up a new token
    /// @param newURI The URI for the token (underscore since `uri()` is reserved by OpenZeppelin)
    /// @param maxSupply The maximum supply of the token
    function setupNewToken(
        string memory newURI,
        uint256 maxSupply
    ) public onlyAdminOrRole(CONTRACT_BASE_ID, PERMISSION_BIT_MINTER) nonReentrant returns (uint256) {
        // TODO(iain): isMaxSupply = 0 open edition or maybe uint256(max) - 1
        //                                                  0xffffffff -> 2**8*4 4.2bil
        //                                                  0xf0000000 -> 2**8*4-(8*3)
        uint256 tokenId = _setupNewToken(newURI, maxSupply);
        // Allow the token creator to administrate this token
        _addPermission(tokenId, msg.sender, PERMISSION_BIT_ADMIN);
        if (bytes(newURI).length > 0) {
            emit URI(newURI, tokenId);
        }
        emit SetupNewToken(tokenId, msg.sender, newURI, maxSupply);
        return tokenId;
    }
    /// @notice Update the token URI for a token
    /// @param tokenId The token ID to update the URI for
    /// @param _newURI The new URI
    function updateTokenURI(uint256 tokenId, string memory _newURI) external onlyAdminOrRole(tokenId, PERMISSION_BIT_METADATA) {
        if (tokenId == CONTRACT_BASE_ID) {
            revert NotAllowedContractBaseIDUpdate();
        }
        emit URI(_newURI, tokenId);
        tokens[tokenId].uri = _newURI;
    }
    /// @notice Update the global contract metadata
    /// @param _newURI The new contract URI
    /// @param _newName The new contract name
    function updateContractMetadata(string memory _newURI, string memory _newName) external onlyAdminOrRole(0, PERMISSION_BIT_METADATA) {
        tokens[CONTRACT_BASE_ID].uri = _newURI;
        _setName(_newName);
        emit ContractMetadataUpdated(msg.sender, _newURI, _newName);
    }
    function _setupNewToken(string memory newURI, uint256 maxSupply) internal returns (uint256 tokenId) {
        tokenId = _getAndUpdateNextTokenId();
        TokenData memory tokenData = TokenData({uri: newURI, maxSupply: maxSupply, totalMinted: 0});
        tokens[tokenId] = tokenData;
        emit UpdatedToken(msg.sender, tokenId, tokenData);
    }
    /// @notice Add a role to a user for a token
    /// @param tokenId The token ID to add the role to
    /// @param user The user to add the role to
    /// @param permissionBits The permission bit to add
    function addPermission(uint256 tokenId, address user, uint256 permissionBits) external onlyAdmin(tokenId) {
        _addPermission(tokenId, user, permissionBits);
    }
    /// @notice Remove a role from a user for a token
    /// @param tokenId The token ID to remove the role from
    /// @param user The user to remove the role from
    /// @param permissionBits The permission bit to remove
    function removePermission(uint256 tokenId, address user, uint256 permissionBits) external onlyAdmin(tokenId) {
        _removePermission(tokenId, user, permissionBits);
        // Clear owner field
        if (tokenId == CONTRACT_BASE_ID && user == config.owner && !_hasAnyPermission(CONTRACT_BASE_ID, user, PERMISSION_BIT_ADMIN)) {
            _setOwner(address(0));
        }
    }
    /// @notice Set the owner of the contract
    /// @param newOwner The new owner of the contract
    function setOwner(address newOwner) external onlyAdmin(CONTRACT_BASE_ID) {
        if (!_hasAnyPermission(CONTRACT_BASE_ID, newOwner, PERMISSION_BIT_ADMIN)) {
            revert NewOwnerNeedsToBeAdmin();
        }
        // Update owner field
        _setOwner(newOwner);
    }
    /// @notice Getter for the owner singleton of the contract for outside interfaces
    /// @return the owner of the contract singleton for compat.
    function owner() external view returns (address) {
        return config.owner;
    }
    /// @notice AdminMint that only checks if the requested quantity can be minted and has a re-entrant guard
    /// @param recipient recipient for admin minted tokens
    /// @param tokenId token id to mint
    /// @param quantity quantity to mint
    /// @param data callback data as specified by the 1155 spec
    function _adminMint(address recipient, uint256 tokenId, uint256 quantity, bytes memory data) internal {
        _mint(recipient, tokenId, quantity, data);
    }
    /// @notice Mint a token to a user as the admin or minter
    /// @param recipient The recipient of the token
    /// @param tokenId The token ID to mint
    /// @param quantity The quantity of tokens to mint
    /// @param data The data to pass to the onERC1155Received function
    function adminMint(
        address recipient,
        uint256 tokenId,
        uint256 quantity,
        bytes memory data
    ) external nonReentrant onlyAdminOrRole(tokenId, PERMISSION_BIT_MINTER) {
        // Call internal admin mint
        _adminMint(recipient, tokenId, quantity, data);
    }
    /// @notice Batch mint tokens to a user as the admin or minter
    /// @param recipient The recipient of the tokens
    /// @param tokenIds The token IDs to mint
    /// @param quantities The quantities of tokens to mint
    /// @param data The data to pass to the onERC1155BatchReceived function
    function adminMintBatch(address recipient, uint256[] memory tokenIds, uint256[] memory quantities, bytes memory data) external nonReentrant {
        bool isGlobalAdminOrMinter = _isAdminOrRole(msg.sender, CONTRACT_BASE_ID, PERMISSION_BIT_MINTER);
        for (uint256 i = 0; i < tokenIds.length; ++i) {
            if (!isGlobalAdminOrMinter) {
                _requireAdminOrRole(msg.sender, tokenIds[i], PERMISSION_BIT_MINTER);
            }
        }
        _mintBatch(recipient, tokenIds, quantities, data);
    }
    /// @notice Mint tokens given a minter contract and minter arguments
    /// @param minter The minter contract to use
    /// @param tokenId The token ID to mint
    /// @param quantity The quantity of tokens to mint
    /// @param minterArguments The arguments to pass to the minter
    function mint(IMinter1155 minter, uint256 tokenId, uint256 quantity, bytes calldata minterArguments) external payable nonReentrant {
        // Require admin from the minter to mint
        _requireAdminOrRole(address(minter), tokenId, PERMISSION_BIT_MINTER);
        // Get value sent and handle mint fee
        uint256 ethValueSent = _handleFeeAndGetValueSent(quantity);
        // Execute commands returned from minter
        _executeCommands(minter.requestMint(address(this), tokenId, quantity, ethValueSent, minterArguments).commands, ethValueSent, tokenId);
        emit Purchased(msg.sender, address(minter), tokenId, quantity, msg.value);
    }
    /// @notice Set a metadata renderer for a token
    /// @param tokenId The token ID to set the renderer for
    /// @param renderer The renderer to set
    /// @param setupData The data to pass to the renderer upon intialization
    function setTokenMetadataRenderer(
        uint256 tokenId,
        IRenderer1155 renderer,
        bytes calldata setupData
    ) external nonReentrant onlyAdminOrRole(tokenId, PERMISSION_BIT_METADATA) {
        _setRenderer(tokenId, renderer, setupData);
        if (tokenId == 0) {
            emit ContractRendererUpdated(renderer);
        } else {
            // We don't know the uri from the renderer but can emit a notification to the indexer here
            emit URI("", tokenId);
        }
    }
    /// Execute Minter Commands ///
    /// @notice Internal functions to execute commands returned by the minter
    /// @param commands list of command structs
    /// @param ethValueSent the ethereum value sent in the mint transaction into the contract
    /// @param tokenId the token id the user requested to mint (0 if the token id is set by the minter itself across the whole contract)
    function _executeCommands(ICreatorCommands.Command[] memory commands, uint256 ethValueSent, uint256 tokenId) internal {
        for (uint256 i = 0; i < commands.length; ++i) {
            ICreatorCommands.CreatorActions method = commands[i].method;
            if (method == ICreatorCommands.CreatorActions.SEND_ETH) {
                (address recipient, uint256 amount) = abi.decode(commands[i].args, (address, uint256));
                if (ethValueSent > amount) {
                    revert Mint_InsolventSaleTransfer();
                }
                if (!TransferHelperUtils.safeSendETH(recipient, amount)) {
                    revert Mint_ValueTransferFail();
                }
            } else if (method == ICreatorCommands.CreatorActions.MINT) {
                (address recipient, uint256 mintTokenId, uint256 quantity) = abi.decode(commands[i].args, (address, uint256, uint256));
                if (tokenId != 0 && mintTokenId != tokenId) {
                    revert Mint_TokenIDMintNotAllowed();
                }
                _adminMint(recipient, tokenId, quantity, "");
            } else if (method == ICreatorCommands.CreatorActions.NO_OP) {
                // no-op
            } else {
                revert Mint_UnknownCommand();
            }
        }
    }
    /// @notice Token info getter
    /// @param tokenId token id to get info for
    /// @return TokenData struct returned
    function getTokenInfo(uint256 tokenId) external view returns (TokenData memory) {
        return tokens[tokenId];
    }
    /// @notice Proxy setter for sale contracts (only callable by SALES permission or admin)
    /// @param tokenId The token ID to call the sale contract with
    /// @param salesConfig The sales config contract to call
    /// @param data The data to pass to the sales config contract
    function callSale(uint256 tokenId, IMinter1155 salesConfig, bytes memory data) external onlyAdminOrRole(tokenId, PERMISSION_BIT_SALES) {
        _requireAdminOrRole(address(salesConfig), tokenId, PERMISSION_BIT_MINTER);
        if (!salesConfig.supportsInterface(type(IMinter1155).interfaceId)) {
            revert Sale_CannotCallNonSalesContract(address(salesConfig));
        }
        (bool success, ) = address(salesConfig).call(data);
        if (!success) {
            revert Sale_CallFailed();
        }
    }
    /// @notice Proxy setter for renderer contracts (only callable by METADATA permission or admin)
    /// @param tokenId The token ID to call the renderer contract with
    /// @param data The data to pass to the renderer contract
    function callRenderer(uint256 tokenId, bytes memory data) external onlyAdminOrRole(tokenId, PERMISSION_BIT_METADATA) {
        // We assume any renderers set are checked for EIP165 signature during write stage.
        (bool success, bytes memory why) = address(getCustomRenderer(tokenId)).call(data);
        if (!success) {
            revert Renderer_CallFailed(why);
        }
    }
    /// @notice Returns true if the contract implements the interface defined by interfaceId
    /// @param interfaceId The interface to check for
    /// @return if the interfaceId is marked as supported
    function supportsInterface(
        bytes4 interfaceId
    ) public view virtual override(CreatorRoyaltiesControl, ERC1155Upgradeable, IERC165Upgradeable) returns (bool) {
        return super.supportsInterface(interfaceId) || interfaceId == type(IZoraCreator1155).interfaceId;
    }
    /// Generic 1155 function overrides ///
    /// @notice Mint function that 1) checks quantity and 2) handles supply royalty 3) keeps track of allowed tokens
    /// @param to to mint to
    /// @param id token id to mint
    /// @param amount of tokens to mint
    /// @param data as specified by 1155 standard
    function _mint(address to, uint256 id, uint256 amount, bytes memory data) internal virtual override {
        (address supplyRoyaltyRecipient, uint256 supplyRoyaltyAmount) = supplyRoyaltyInfo(id, tokens[id].totalMinted, amount);
        _requireCanMintQuantity(id, amount + supplyRoyaltyAmount);
        super._mint(to, id, amount, data);
        if (supplyRoyaltyAmount > 0) {
            super._mint(supplyRoyaltyRecipient, id, supplyRoyaltyAmount, data);
        }
        tokens[id].totalMinted += amount + supplyRoyaltyAmount;
    }
    /// @notice Mint batch function that 1) checks quantity and 2) handles supply royalty 3) keeps track of allowed tokens
    /// @param to to mint to
    /// @param ids token ids to mint
    /// @param amounts of tokens to mint
    /// @param data as specified by 1155 standard
    function _mintBatch(address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data) internal virtual override {
        super._mintBatch(to, ids, amounts, data);
        for (uint256 i = 0; i < ids.length; ++i) {
            (address supplyRoyaltyRecipient, uint256 supplyRoyaltyAmount) = supplyRoyaltyInfo(ids[i], tokens[ids[i]].totalMinted, amounts[i]);
            _requireCanMintQuantity(ids[i], amounts[i] + supplyRoyaltyAmount);
            if (supplyRoyaltyAmount > 0) {
                super._mint(supplyRoyaltyRecipient, ids[i], supplyRoyaltyAmount, data);
            }
            tokens[ids[i]].totalMinted += amounts[i] + supplyRoyaltyAmount;
        }
    }
    /// @notice Burns a batch of tokens
    /// @dev Only the current owner is allowed to burn
    /// @param from the user to burn from
    /// @param tokenIds The token ID to burn
    /// @param amounts The amount of tokens to burn
    function burnBatch(address from, uint256[] calldata tokenIds, uint256[] calldata amounts) external {
        if (from != msg.sender && !isApprovedForAll(from, msg.sender)) {
            revert Burn_NotOwnerOrApproved(msg.sender, from);
        }
        _burnBatch(from, tokenIds, amounts);
    }
    function setTransferHook(ITransferHookReceiver transferHook) external onlyAdmin(CONTRACT_BASE_ID) {
        if (address(transferHook) != address(0)) {
            if (!transferHook.supportsInterface(type(ITransferHookReceiver).interfaceId)) {
                revert Config_TransferHookNotSupported(address(transferHook));
            }
        }
        config.transferHook = transferHook;
        emit ConfigUpdated(msg.sender, ConfigUpdate.TRANSFER_HOOK, config);
    }
    /// @notice Hook before token transfer that checks for a transfer hook integration
    /// @param operator operator moving the tokens
    /// @param from from address
    /// @param to to address
    /// @param ids token ids to move
    /// @param amounts amounts of tokens
    /// @param data data of tokens
    function _beforeTokenTransfer(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal override {
        super._beforeTokenTransfer(operator, from, to, ids, amounts, data);
        if (address(config.transferHook) != address(0)) {
            config.transferHook.onTokenTransferBatch({target: address(this), operator: operator, from: from, to: to, ids: ids, amounts: amounts, data: data});
        }
    }
    /// @notice Returns the URI for the contract
    function contractURI() external view returns (string memory) {
        IRenderer1155 customRenderer = getCustomRenderer(CONTRACT_BASE_ID);
        if (address(customRenderer) != address(0)) {
            return customRenderer.contractURI();
        }
        return uri(0);
    }
    /// @notice Returns the URI for a token
    /// @param tokenId The token ID to return the URI for
    function uri(uint256 tokenId) public view override(ERC1155Upgradeable, IERC1155MetadataURIUpgradeable) returns (string memory) {
        if (bytes(tokens[tokenId].uri).length > 0) {
            return tokens[tokenId].uri;
        }
        return _render(tokenId);
    }
    /// @notice Internal setter for contract admin with no access checks
    /// @param newOwner new owner address
    function _setOwner(address newOwner) internal {
        address lastOwner = config.owner;
        config.owner = newOwner;
        emit OwnershipTransferred(lastOwner, newOwner);
        emit ConfigUpdated(msg.sender, ConfigUpdate.OWNER, config);
    }
    /// @notice Internal no-checks set funds recipient address
    /// @param fundsRecipient new funds recipient address
    function setFundsRecipient(address payable fundsRecipient) external onlyAdminOrRole(CONTRACT_BASE_ID, PERMISSION_BIT_FUNDS_MANAGER) {
        config.fundsRecipient = fundsRecipient;
        emit ConfigUpdated(msg.sender, ConfigUpdate.FUNDS_RECIPIENT, config);
    }
    /// @notice Internal no-checks set funds recipient address
    /// @param fundsRecipient new funds recipient address
    function _setFundsRecipient(address payable fundsRecipient) internal {
        config.fundsRecipient = fundsRecipient;
        emit ConfigUpdated(msg.sender, ConfigUpdate.FUNDS_RECIPIENT, config);
    }
    /// @notice Withdraws all ETH from the contract to the message sender
    function withdraw() public onlyAdminOrRole(CONTRACT_BASE_ID, PERMISSION_BIT_FUNDS_MANAGER) {
        uint256 contractValue = address(this).balance;
        if (!TransferHelperUtils.safeSendETH(config.fundsRecipient, contractValue)) {
            revert ETHWithdrawFailed(config.fundsRecipient, contractValue);
        }
    }
    ///                                                          ///
    ///                         MANAGER UPGRADE                  ///
    ///                                                          ///
    /// @notice Ensures the caller is authorized to upgrade the contract
    /// @dev This function is called in `upgradeTo` & `upgradeToAndCall`
    /// @param _newImpl The new implementation address
    function _authorizeUpgrade(address _newImpl) internal override onlyAdmin(CONTRACT_BASE_ID) {}
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {IZoraCreator1155TypesV1} from "./IZoraCreator1155TypesV1.sol";
/*
             ░░░░░░░░░░░░░░              
        ░░▒▒░░░░░░░░░░░░░░░░░░░░        
      ░░▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░      
    ░░▒▒▒▒░░░░░░░░░░░░░░    ░░░░░░░░    
   ░▓▓▒▒▒▒░░░░░░░░░░░░        ░░░░░░░    
  ░▓▓▓▒▒▒▒░░░░░░░░░░░░        ░░░░░░░░  
  ░▓▓▓▒▒▒▒░░░░░░░░░░░░░░    ░░░░░░░░░░  
  ░▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░  
  ░▓▓▓▓▓▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░  
   ░▓▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░  
    ░░▓▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░    
    ░░▓▓▓▓▓▓▒▒▒▒▒▒▒▒░░░░░░░░░▒▒▒▒▒░░    
      ░░▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░      
          ░░▓▓▓▓▓▓▓▓▓▓▓▓▒▒░░░          
               OURS TRULY,
    github.com/ourzora/zora-1155-contracts
 */
/// Imagine. Mint. Enjoy.
/// @notice Storage for 1155 contract
/// @author @iainnash / @tbtstl
contract ZoraCreator1155StorageV1 is IZoraCreator1155TypesV1 {
    /// @notice token data stored for each token
    mapping(uint256 => TokenData) internal tokens;
    /// @notice metadata renderer contract for each token
    mapping(uint256 => address) public metadataRendererContract;
    /// @notice next token id available when using a linear mint style (default for launch)
    uint256 public nextTokenId;
    /// @notice Global contract configuration
    ContractConfig config;
    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {CreatorPermissionStorageV1} from "./CreatorPermissionStorageV1.sol";
import {ICreatorPermissionControl} from "../interfaces/ICreatorPermissionControl.sol";
/// Imagine. Mint. Enjoy.
/// @author @iainnash / @tbtstl
contract CreatorPermissionControl is CreatorPermissionStorageV1, ICreatorPermissionControl {
    /// @notice Check if the user has the given permissions
    /// @dev if multiple permissions are passed in this checks for all the permissions requested
    /// @return true or false if all of the passed in permissions apply
    function _hasPermissions(uint256 tokenId, address user, uint256 permissionBits) internal view returns (bool) {
        // Does a bitwise and and checks if any of those permissions match
        return permissions[tokenId][user] & permissionBits == permissionBits;
    }
    /// @notice Check if the user has any of the given permissions
    /// @dev if multiple permissions are passed in this checks for any one of those permissions
    /// @return true or false if any of the passed in permissions apply
    function _hasAnyPermission(uint256 tokenId, address user, uint256 permissionBits) internal view returns (bool) {
        // Does a bitwise and and checks if any of those permissions match
        return permissions[tokenId][user] & permissionBits > 0;
    }
    /// @return raw permission bits for the given user
    function getPermissions(uint256 tokenId, address user) external view returns (uint256) {
        return permissions[tokenId][user];
    }
    /// @notice addPermission – internal function to add a set of permission bits to a user
    /// @param tokenId token id to add the permission to (0 indicates contract-wide add)
    /// @param user user to update permissions for
    /// @param permissionBits bits to add permissions to
    function _addPermission(uint256 tokenId, address user, uint256 permissionBits) internal {
        uint256 tokenPermissions = permissions[tokenId][user];
        tokenPermissions |= permissionBits;
        permissions[tokenId][user] = tokenPermissions;
        emit UpdatedPermissions(tokenId, user, tokenPermissions);
    }
    /// @notice _clearPermission clear permissions for user
    /// @param tokenId token id to clear permission from (0 indicates contract-wide action)
    function _clearPermissions(uint256 tokenId, address user) internal {
        permissions[tokenId][user] = 0;
        emit UpdatedPermissions(tokenId, user, 0);
    }
    /// @notice _removePermission removes permissions for user
    /// @param tokenId token id to clear permission from (0 indicates contract-wide action)
    /// @param user user to manage permissions for
    /// @param permissionBits set of permission bits to remove
    function _removePermission(uint256 tokenId, address user, uint256 permissionBits) internal {
        uint256 tokenPermissions = permissions[tokenId][user];
        tokenPermissions &= ~permissionBits;
        permissions[tokenId][user] = tokenPermissions;
        emit UpdatedPermissions(tokenId, user, tokenPermissions);
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
/// Imagine. Mint. Enjoy.
/// @author @iainnash / @tbtstl
contract CreatorPermissionStorageV1 {
    mapping(uint256 => mapping(address => uint256)) public permissions;
    uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {CreatorRendererStorageV1} from "./CreatorRendererStorageV1.sol";
import {IRenderer1155} from "../interfaces/IRenderer1155.sol";
import {ITransferHookReceiver} from "../interfaces/ITransferHookReceiver.sol";
import {SharedBaseConstants} from "../shared/SharedBaseConstants.sol";
/// @title CreatorRendererControl
/// @notice Contract for managing the renderer of an 1155 contract
abstract contract CreatorRendererControl is CreatorRendererStorageV1, SharedBaseConstants {
    function _setRenderer(uint256 tokenId, IRenderer1155 renderer, bytes calldata setupData) internal {
        if (address(renderer) == address(0)) {
            delete customRenderers[tokenId];
        } else {
            customRenderers[tokenId] = renderer;
            if (!renderer.supportsInterface(type(IRenderer1155).interfaceId)) {
                revert RendererNotValid(address(renderer));
            }
            renderer.setup(setupData);
        }
        emit RendererUpdated({tokenId: tokenId, renderer: address(renderer), user: msg.sender});
    }
    /// @notice Return the renderer for a given token
    /// @dev Returns address 0 for no results
    /// @param tokenId The token to get the renderer for
    function getCustomRenderer(uint256 tokenId) public view returns (IRenderer1155 customRenderer) {
        customRenderer = customRenderers[tokenId];
        if (address(customRenderer) == address(0)) {
            customRenderer = customRenderers[CONTRACT_BASE_ID];
        }
    }
    /// @notice Function called to render when an empty tokenURI exists on the contract
    function _render(uint256 tokenId) internal view returns (string memory) {
        return getCustomRenderer(tokenId).uri(tokenId);
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {ICreatorRendererControl} from "../interfaces/ICreatorRendererControl.sol";
import {IRenderer1155} from "../interfaces/IRenderer1155.sol";
/// @notice Creator Renderer Storage Configuration Contract V1
abstract contract CreatorRendererStorageV1 is ICreatorRendererControl {
    /// @notice Mapping for custom renderers
    mapping(uint256 => IRenderer1155) public customRenderers;
    uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {CreatorRoyaltiesStorageV1} from "./CreatorRoyaltiesStorageV1.sol";
import {ICreatorRoyaltiesControl} from "../interfaces/ICreatorRoyaltiesControl.sol";
import {SharedBaseConstants} from "../shared/SharedBaseConstants.sol";
import {IERC2981} from "@openzeppelin/contracts/interfaces/IERC2981.sol";
/// Imagine. Mint. Enjoy.
/// @title CreatorRoyaltiesControl
/// @author ZORA @iainnash / @tbtstl
/// @notice Contract for managing the royalties of an 1155 contract
abstract contract CreatorRoyaltiesControl is CreatorRoyaltiesStorageV1, SharedBaseConstants {
    uint256 immutable ROYALTY_BPS_TO_PERCENT = 10_000;
    /// @notice The royalty information for a given token.
    /// @param tokenId The token ID to get the royalty information for.
    function getRoyalties(uint256 tokenId) public view returns (RoyaltyConfiguration memory) {
        RoyaltyConfiguration memory config = royalties[tokenId];
        if (config.royaltyRecipient != address(0)) {
            return config;
        }
        // Otherwise, return default.
        return royalties[CONTRACT_BASE_ID];
    }
    /// @notice Returns the royalty information for a given token.
    /// @param tokenId The token ID to get the royalty information for.
    /// @param salePrice The sale price of the NFT asset specified by tokenId
    function royaltyInfo(uint256 tokenId, uint256 salePrice) public view returns (address receiver, uint256 royaltyAmount) {
        RoyaltyConfiguration memory config = getRoyalties(tokenId);
        royaltyAmount = (config.royaltyBPS * salePrice) / ROYALTY_BPS_TO_PERCENT;
        receiver = config.royaltyRecipient;
    }
    /// @notice Returns the supply royalty information for a given token.
    /// @param tokenId The token ID to get the royalty information for.
    /// @param mintAmount The amount of tokens being minted.
    /// @param totalSupply The total supply of the token,
    function supplyRoyaltyInfo(uint256 tokenId, uint256 totalSupply, uint256 mintAmount) public view returns (address receiver, uint256 royaltyAmount) {
        RoyaltyConfiguration memory config = getRoyalties(tokenId);
        if (config.royaltyMintSchedule == 0) {
            return (config.royaltyRecipient, 0);
        }
        uint256 totalRoyaltyMints = (mintAmount + (totalSupply % config.royaltyMintSchedule)) / (config.royaltyMintSchedule - 1);
        return (config.royaltyRecipient, totalRoyaltyMints);
    }
    function _updateRoyalties(uint256 tokenId, RoyaltyConfiguration memory configuration) internal {
        // Don't allow 100% supply royalties
        if (configuration.royaltyMintSchedule == 1) {
            revert InvalidMintSchedule();
        }
        royalties[tokenId] = configuration;
        emit UpdatedRoyalties(tokenId, msg.sender, configuration);
    }
    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
        return interfaceId == type(IERC2981).interfaceId;
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {ICreatorRoyaltiesControl} from "../interfaces/ICreatorRoyaltiesControl.sol";
/// Imagine. Mint. Enjoy.
/// @title CreatorRoyaltiesControl
/// @author ZORA @iainnash / @tbtstl
/// @notice Royalty storage contract pattern
abstract contract CreatorRoyaltiesStorageV1 is ICreatorRoyaltiesControl {
    mapping(uint256 => RoyaltyConfiguration) public royalties;
    uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
contract SharedBaseConstants {
    uint256 public immutable CONTRACT_BASE_ID = 0;
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;
import "@openzeppelin/contracts/utils/Address.sol";
/// @title PublicMulticall
/// @notice Contract for executing a batch of function calls on this contract
abstract contract PublicMulticall {
    /**
     * @notice Receives and executes a batch of function calls on this contract.
     */
    function multicall(bytes[] calldata data) public virtual returns (bytes[] memory results) {
        results = new bytes[](data.length);
        for (uint256 i = 0; i < data.length; i++) {
            results[i] = Address.functionDelegateCall(address(this), data[i]);
        }
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
/// @title TransferHelperUtils
/// @notice Helper functions for sending ETH
library TransferHelperUtils {
    /// @dev Gas limit to send funds
    uint256 internal constant FUNDS_SEND_LOW_GAS_LIMIT = 110_000;
    // @dev Gas limit to send funds – usable for splits, can use with withdraws
    uint256 internal constant FUNDS_SEND_GAS_LIMIT = 310_000;
    /// @notice Sends ETH to a recipient, making conservative estimates to not run out of gas
    /// @param recipient The address to send ETH to
    /// @param value The amount of ETH to send
    function safeSendETHLowLimit(address recipient, uint256 value) internal returns (bool success) {
        (success, ) = recipient.call{value: value, gas: FUNDS_SEND_LOW_GAS_LIMIT}("");
    }
    /// @notice Sends ETH to a recipient, making an attempt to not run out of gas
    /// @param recipient The address to send ETH to
    /// @param value The amount of ETH to send
    function safeSendETH(address recipient, uint256 value) internal returns (bool success) {
        (success, ) = recipient.call{value: value, gas: FUNDS_SEND_GAS_LIMIT}("");
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {IVersionedContract} from "../interfaces/IVersionedContract.sol";
/// @title ContractVersionBase
/// @notice Base contract for versioning contracts
contract ContractVersionBase is IVersionedContract {
    /// @notice The version of the contract
    function contractVersion() external pure override returns (string memory) {
        return "1.0.0";
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "./base/ModuleManager.sol";
import "./base/OwnerManager.sol";
import "./base/FallbackManager.sol";
import "./base/GuardManager.sol";
import "./common/EtherPaymentFallback.sol";
import "./common/Singleton.sol";
import "./common/SignatureDecoder.sol";
import "./common/SecuredTokenTransfer.sol";
import "./common/StorageAccessible.sol";
import "./interfaces/ISignatureValidator.sol";
import "./external/GnosisSafeMath.sol";
/// @title Gnosis Safe - A multisignature wallet with support for confirmations using signed messages based on ERC191.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafe is
    EtherPaymentFallback,
    Singleton,
    ModuleManager,
    OwnerManager,
    SignatureDecoder,
    SecuredTokenTransfer,
    ISignatureValidatorConstants,
    FallbackManager,
    StorageAccessible,
    GuardManager
{
    using GnosisSafeMath for uint256;
    string public constant VERSION = "1.3.0";
    // keccak256(
    //     "EIP712Domain(uint256 chainId,address verifyingContract)"
    // );
    bytes32 private constant DOMAIN_SEPARATOR_TYPEHASH = 0x47e79534a245952e8b16893a336b85a3d9ea9fa8c573f3d803afb92a79469218;
    // keccak256(
    //     "SafeTx(address to,uint256 value,bytes data,uint8 operation,uint256 safeTxGas,uint256 baseGas,uint256 gasPrice,address gasToken,address refundReceiver,uint256 nonce)"
    // );
    bytes32 private constant SAFE_TX_TYPEHASH = 0xbb8310d486368db6bd6f849402fdd73ad53d316b5a4b2644ad6efe0f941286d8;
    event SafeSetup(address indexed initiator, address[] owners, uint256 threshold, address initializer, address fallbackHandler);
    event ApproveHash(bytes32 indexed approvedHash, address indexed owner);
    event SignMsg(bytes32 indexed msgHash);
    event ExecutionFailure(bytes32 txHash, uint256 payment);
    event ExecutionSuccess(bytes32 txHash, uint256 payment);
    uint256 public nonce;
    bytes32 private _deprecatedDomainSeparator;
    // Mapping to keep track of all message hashes that have been approve by ALL REQUIRED owners
    mapping(bytes32 => uint256) public signedMessages;
    // Mapping to keep track of all hashes (message or transaction) that have been approve by ANY owners
    mapping(address => mapping(bytes32 => uint256)) public approvedHashes;
    // This constructor ensures that this contract can only be used as a master copy for Proxy contracts
    constructor() {
        // By setting the threshold it is not possible to call setup anymore,
        // so we create a Safe with 0 owners and threshold 1.
        // This is an unusable Safe, perfect for the singleton
        threshold = 1;
    }
    /// @dev Setup function sets initial storage of contract.
    /// @param _owners List of Safe owners.
    /// @param _threshold Number of required confirmations for a Safe transaction.
    /// @param to Contract address for optional delegate call.
    /// @param data Data payload for optional delegate call.
    /// @param fallbackHandler Handler for fallback calls to this contract
    /// @param paymentToken Token that should be used for the payment (0 is ETH)
    /// @param payment Value that should be paid
    /// @param paymentReceiver Adddress that should receive the payment (or 0 if tx.origin)
    function setup(
        address[] calldata _owners,
        uint256 _threshold,
        address to,
        bytes calldata data,
        address fallbackHandler,
        address paymentToken,
        uint256 payment,
        address payable paymentReceiver
    ) external {
        // setupOwners checks if the Threshold is already set, therefore preventing that this method is called twice
        setupOwners(_owners, _threshold);
        if (fallbackHandler != address(0)) internalSetFallbackHandler(fallbackHandler);
        // As setupOwners can only be called if the contract has not been initialized we don't need a check for setupModules
        setupModules(to, data);
        if (payment > 0) {
            // To avoid running into issues with EIP-170 we reuse the handlePayment function (to avoid adjusting code of that has been verified we do not adjust the method itself)
            // baseGas = 0, gasPrice = 1 and gas = payment => amount = (payment + 0) * 1 = payment
            handlePayment(payment, 0, 1, paymentToken, paymentReceiver);
        }
        emit SafeSetup(msg.sender, _owners, _threshold, to, fallbackHandler);
    }
    /// @dev Allows to execute a Safe transaction confirmed by required number of owners and then pays the account that submitted the transaction.
    ///      Note: The fees are always transferred, even if the user transaction fails.
    /// @param to Destination address of Safe transaction.
    /// @param value Ether value of Safe transaction.
    /// @param data Data payload of Safe transaction.
    /// @param operation Operation type of Safe transaction.
    /// @param safeTxGas Gas that should be used for the Safe transaction.
    /// @param baseGas Gas costs that are independent of the transaction execution(e.g. base transaction fee, signature check, payment of the refund)
    /// @param gasPrice Gas price that should be used for the payment calculation.
    /// @param gasToken Token address (or 0 if ETH) that is used for the payment.
    /// @param refundReceiver Address of receiver of gas payment (or 0 if tx.origin).
    /// @param signatures Packed signature data ({bytes32 r}{bytes32 s}{uint8 v})
    function execTransaction(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation,
        uint256 safeTxGas,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address payable refundReceiver,
        bytes memory signatures
    ) public payable virtual returns (bool success) {
        bytes32 txHash;
        // Use scope here to limit variable lifetime and prevent `stack too deep` errors
        {
            bytes memory txHashData =
                encodeTransactionData(
                    // Transaction info
                    to,
                    value,
                    data,
                    operation,
                    safeTxGas,
                    // Payment info
                    baseGas,
                    gasPrice,
                    gasToken,
                    refundReceiver,
                    // Signature info
                    nonce
                );
            // Increase nonce and execute transaction.
            nonce++;
            txHash = keccak256(txHashData);
            checkSignatures(txHash, txHashData, signatures);
        }
        address guard = getGuard();
        {
            if (guard != address(0)) {
                Guard(guard).checkTransaction(
                    // Transaction info
                    to,
                    value,
                    data,
                    operation,
                    safeTxGas,
                    // Payment info
                    baseGas,
                    gasPrice,
                    gasToken,
                    refundReceiver,
                    // Signature info
                    signatures,
                    msg.sender
                );
            }
        }
        // We require some gas to emit the events (at least 2500) after the execution and some to perform code until the execution (500)
        // We also include the 1/64 in the check that is not send along with a call to counteract potential shortings because of EIP-150
        require(gasleft() >= ((safeTxGas * 64) / 63).max(safeTxGas + 2500) + 500, "GS010");
        // Use scope here to limit variable lifetime and prevent `stack too deep` errors
        {
            uint256 gasUsed = gasleft();
            // If the gasPrice is 0 we assume that nearly all available gas can be used (it is always more than safeTxGas)
            // We only substract 2500 (compared to the 3000 before) to ensure that the amount passed is still higher than safeTxGas
            success = execute(to, value, data, operation, gasPrice == 0 ? (gasleft() - 2500) : safeTxGas);
            gasUsed = gasUsed.sub(gasleft());
            // If no safeTxGas and no gasPrice was set (e.g. both are 0), then the internal tx is required to be successful
            // This makes it possible to use `estimateGas` without issues, as it searches for the minimum gas where the tx doesn't revert
            require(success || safeTxGas != 0 || gasPrice != 0, "GS013");
            // We transfer the calculated tx costs to the tx.origin to avoid sending it to intermediate contracts that have made calls
            uint256 payment = 0;
            if (gasPrice > 0) {
                payment = handlePayment(gasUsed, baseGas, gasPrice, gasToken, refundReceiver);
            }
            if (success) emit ExecutionSuccess(txHash, payment);
            else emit ExecutionFailure(txHash, payment);
        }
        {
            if (guard != address(0)) {
                Guard(guard).checkAfterExecution(txHash, success);
            }
        }
    }
    function handlePayment(
        uint256 gasUsed,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address payable refundReceiver
    ) private returns (uint256 payment) {
        // solhint-disable-next-line avoid-tx-origin
        address payable receiver = refundReceiver == address(0) ? payable(tx.origin) : refundReceiver;
        if (gasToken == address(0)) {
            // For ETH we will only adjust the gas price to not be higher than the actual used gas price
            payment = gasUsed.add(baseGas).mul(gasPrice < tx.gasprice ? gasPrice : tx.gasprice);
            require(receiver.send(payment), "GS011");
        } else {
            payment = gasUsed.add(baseGas).mul(gasPrice);
            require(transferToken(gasToken, receiver, payment), "GS012");
        }
    }
    /**
     * @dev Checks whether the signature provided is valid for the provided data, hash. Will revert otherwise.
     * @param dataHash Hash of the data (could be either a message hash or transaction hash)
     * @param data That should be signed (this is passed to an external validator contract)
     * @param signatures Signature data that should be verified. Can be ECDSA signature, contract signature (EIP-1271) or approved hash.
     */
    function checkSignatures(
        bytes32 dataHash,
        bytes memory data,
        bytes memory signatures
    ) public view {
        // Load threshold to avoid multiple storage loads
        uint256 _threshold = threshold;
        // Check that a threshold is set
        require(_threshold > 0, "GS001");
        checkNSignatures(dataHash, data, signatures, _threshold);
    }
    /**
     * @dev Checks whether the signature provided is valid for the provided data, hash. Will revert otherwise.
     * @param dataHash Hash of the data (could be either a message hash or transaction hash)
     * @param data That should be signed (this is passed to an external validator contract)
     * @param signatures Signature data that should be verified. Can be ECDSA signature, contract signature (EIP-1271) or approved hash.
     * @param requiredSignatures Amount of required valid signatures.
     */
    function checkNSignatures(
        bytes32 dataHash,
        bytes memory data,
        bytes memory signatures,
        uint256 requiredSignatures
    ) public view {
        // Check that the provided signature data is not too short
        require(signatures.length >= requiredSignatures.mul(65), "GS020");
        // There cannot be an owner with address 0.
        address lastOwner = address(0);
        address currentOwner;
        uint8 v;
        bytes32 r;
        bytes32 s;
        uint256 i;
        for (i = 0; i < requiredSignatures; i++) {
            (v, r, s) = signatureSplit(signatures, i);
            if (v == 0) {
                // If v is 0 then it is a contract signature
                // When handling contract signatures the address of the contract is encoded into r
                currentOwner = address(uint160(uint256(r)));
                // Check that signature data pointer (s) is not pointing inside the static part of the signatures bytes
                // This check is not completely accurate, since it is possible that more signatures than the threshold are send.
                // Here we only check that the pointer is not pointing inside the part that is being processed
                require(uint256(s) >= requiredSignatures.mul(65), "GS021");
                // Check that signature data pointer (s) is in bounds (points to the length of data -> 32 bytes)
                require(uint256(s).add(32) <= signatures.length, "GS022");
                // Check if the contract signature is in bounds: start of data is s + 32 and end is start + signature length
                uint256 contractSignatureLen;
                // solhint-disable-next-line no-inline-assembly
                assembly {
                    contractSignatureLen := mload(add(add(signatures, s), 0x20))
                }
                require(uint256(s).add(32).add(contractSignatureLen) <= signatures.length, "GS023");
                // Check signature
                bytes memory contractSignature;
                // solhint-disable-next-line no-inline-assembly
                assembly {
                    // The signature data for contract signatures is appended to the concatenated signatures and the offset is stored in s
                    contractSignature := add(add(signatures, s), 0x20)
                }
                require(ISignatureValidator(currentOwner).isValidSignature(data, contractSignature) == EIP1271_MAGIC_VALUE, "GS024");
            } else if (v == 1) {
                // If v is 1 then it is an approved hash
                // When handling approved hashes the address of the approver is encoded into r
                currentOwner = address(uint160(uint256(r)));
                // Hashes are automatically approved by the sender of the message or when they have been pre-approved via a separate transaction
                require(msg.sender == currentOwner || approvedHashes[currentOwner][dataHash] != 0, "GS025");
            } else if (v > 30) {
                // If v > 30 then default va (27,28) has been adjusted for eth_sign flow
                // To support eth_sign and similar we adjust v and hash the messageHash with the Ethereum message prefix before applying ecrecover
                currentOwner = ecrecover(keccak256(abi.encodePacked("\\x19Ethereum Signed Message:\
32", dataHash)), v - 4, r, s);
            } else {
                // Default is the ecrecover flow with the provided data hash
                // Use ecrecover with the messageHash for EOA signatures
                currentOwner = ecrecover(dataHash, v, r, s);
            }
            require(currentOwner > lastOwner && owners[currentOwner] != address(0) && currentOwner != SENTINEL_OWNERS, "GS026");
            lastOwner = currentOwner;
        }
    }
    /// @dev Allows to estimate a Safe transaction.
    ///      This method is only meant for estimation purpose, therefore the call will always revert and encode the result in the revert data.
    ///      Since the `estimateGas` function includes refunds, call this method to get an estimated of the costs that are deducted from the safe with `execTransaction`
    /// @param to Destination address of Safe transaction.
    /// @param value Ether value of Safe transaction.
    /// @param data Data payload of Safe transaction.
    /// @param operation Operation type of Safe transaction.
    /// @return Estimate without refunds and overhead fees (base transaction and payload data gas costs).
    /// @notice Deprecated in favor of common/StorageAccessible.sol and will be removed in next version.
    function requiredTxGas(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation
    ) external returns (uint256) {
        uint256 startGas = gasleft();
        // We don't provide an error message here, as we use it to return the estimate
        require(execute(to, value, data, operation, gasleft()));
        uint256 requiredGas = startGas - gasleft();
        // Convert response to string and return via error message
        revert(string(abi.encodePacked(requiredGas)));
    }
    /**
     * @dev Marks a hash as approved. This can be used to validate a hash that is used by a signature.
     * @param hashToApprove The hash that should be marked as approved for signatures that are verified by this contract.
     */
    function approveHash(bytes32 hashToApprove) external {
        require(owners[msg.sender] != address(0), "GS030");
        approvedHashes[msg.sender][hashToApprove] = 1;
        emit ApproveHash(hashToApprove, msg.sender);
    }
    /// @dev Returns the chain id used by this contract.
    function getChainId() public view returns (uint256) {
        uint256 id;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            id := chainid()
        }
        return id;
    }
    function domainSeparator() public view returns (bytes32) {
        return keccak256(abi.encode(DOMAIN_SEPARATOR_TYPEHASH, getChainId(), this));
    }
    /// @dev Returns the bytes that are hashed to be signed by owners.
    /// @param to Destination address.
    /// @param value Ether value.
    /// @param data Data payload.
    /// @param operation Operation type.
    /// @param safeTxGas Gas that should be used for the safe transaction.
    /// @param baseGas Gas costs for that are independent of the transaction execution(e.g. base transaction fee, signature check, payment of the refund)
    /// @param gasPrice Maximum gas price that should be used for this transaction.
    /// @param gasToken Token address (or 0 if ETH) that is used for the payment.
    /// @param refundReceiver Address of receiver of gas payment (or 0 if tx.origin).
    /// @param _nonce Transaction nonce.
    /// @return Transaction hash bytes.
    function encodeTransactionData(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation,
        uint256 safeTxGas,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address refundReceiver,
        uint256 _nonce
    ) public view returns (bytes memory) {
        bytes32 safeTxHash =
            keccak256(
                abi.encode(
                    SAFE_TX_TYPEHASH,
                    to,
                    value,
                    keccak256(data),
                    operation,
                    safeTxGas,
                    baseGas,
                    gasPrice,
                    gasToken,
                    refundReceiver,
                    _nonce
                )
            );
        return abi.encodePacked(bytes1(0x19), bytes1(0x01), domainSeparator(), safeTxHash);
    }
    /// @dev Returns hash to be signed by owners.
    /// @param to Destination address.
    /// @param value Ether value.
    /// @param data Data payload.
    /// @param operation Operation type.
    /// @param safeTxGas Fas that should be used for the safe transaction.
    /// @param baseGas Gas costs for data used to trigger the safe transaction.
    /// @param gasPrice Maximum gas price that should be used for this transaction.
    /// @param gasToken Token address (or 0 if ETH) that is used for the payment.
    /// @param refundReceiver Address of receiver of gas payment (or 0 if tx.origin).
    /// @param _nonce Transaction nonce.
    /// @return Transaction hash.
    function getTransactionHash(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation,
        uint256 safeTxGas,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address refundReceiver,
        uint256 _nonce
    ) public view returns (bytes32) {
        return keccak256(encodeTransactionData(to, value, data, operation, safeTxGas, baseGas, gasPrice, gasToken, refundReceiver, _nonce));
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "../common/Enum.sol";
/// @title Executor - A contract that can execute transactions
/// @author Richard Meissner - <[email protected]>
contract Executor {
    function execute(
        address to,
        uint256 value,
        bytes memory data,
        Enum.Operation operation,
        uint256 txGas
    ) internal returns (bool success) {
        if (operation == Enum.Operation.DelegateCall) {
            // solhint-disable-next-line no-inline-assembly
            assembly {
                success := delegatecall(txGas, to, add(data, 0x20), mload(data), 0, 0)
            }
        } else {
            // solhint-disable-next-line no-inline-assembly
            assembly {
                success := call(txGas, to, value, add(data, 0x20), mload(data), 0, 0)
            }
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "../common/SelfAuthorized.sol";
/// @title Fallback Manager - A contract that manages fallback calls made to this contract
/// @author Richard Meissner - <[email protected]>
contract FallbackManager is SelfAuthorized {
    event ChangedFallbackHandler(address handler);
    // keccak256("fallback_manager.handler.address")
    bytes32 internal constant FALLBACK_HANDLER_STORAGE_SLOT = 0x6c9a6c4a39284e37ed1cf53d337577d14212a4870fb976a4366c693b939918d5;
    function internalSetFallbackHandler(address handler) internal {
        bytes32 slot = FALLBACK_HANDLER_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, handler)
        }
    }
    /// @dev Allows to add a contract to handle fallback calls.
    ///      Only fallback calls without value and with data will be forwarded.
    ///      This can only be done via a Safe transaction.
    /// @param handler contract to handle fallbacks calls.
    function setFallbackHandler(address handler) public authorized {
        internalSetFallbackHandler(handler);
        emit ChangedFallbackHandler(handler);
    }
    // solhint-disable-next-line payable-fallback,no-complex-fallback
    fallback() external {
        bytes32 slot = FALLBACK_HANDLER_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let handler := sload(slot)
            if iszero(handler) {
                return(0, 0)
            }
            calldatacopy(0, 0, calldatasize())
            // The msg.sender address is shifted to the left by 12 bytes to remove the padding
            // Then the address without padding is stored right after the calldata
            mstore(calldatasize(), shl(96, caller()))
            // Add 20 bytes for the address appended add the end
            let success := call(gas(), handler, 0, 0, add(calldatasize(), 20), 0, 0)
            returndatacopy(0, 0, returndatasize())
            if iszero(success) {
                revert(0, returndatasize())
            }
            return(0, returndatasize())
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "../common/Enum.sol";
import "../common/SelfAuthorized.sol";
interface Guard {
    function checkTransaction(
        address to,
        uint256 value,
        bytes memory data,
        Enum.Operation operation,
        uint256 safeTxGas,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address payable refundReceiver,
        bytes memory signatures,
        address msgSender
    ) external;
    function checkAfterExecution(bytes32 txHash, bool success) external;
}
/// @title Fallback Manager - A contract that manages fallback calls made to this contract
/// @author Richard Meissner - <[email protected]>
contract GuardManager is SelfAuthorized {
    event ChangedGuard(address guard);
    // keccak256("guard_manager.guard.address")
    bytes32 internal constant GUARD_STORAGE_SLOT = 0x4a204f620c8c5ccdca3fd54d003badd85ba500436a431f0cbda4f558c93c34c8;
    /// @dev Set a guard that checks transactions before execution
    /// @param guard The address of the guard to be used or the 0 address to disable the guard
    function setGuard(address guard) external authorized {
        bytes32 slot = GUARD_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, guard)
        }
        emit ChangedGuard(guard);
    }
    function getGuard() internal view returns (address guard) {
        bytes32 slot = GUARD_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            guard := sload(slot)
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "../common/Enum.sol";
import "../common/SelfAuthorized.sol";
import "./Executor.sol";
/// @title Module Manager - A contract that manages modules that can execute transactions via this contract
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract ModuleManager is SelfAuthorized, Executor {
    event EnabledModule(address module);
    event DisabledModule(address module);
    event ExecutionFromModuleSuccess(address indexed module);
    event ExecutionFromModuleFailure(address indexed module);
    address internal constant SENTINEL_MODULES = address(0x1);
    mapping(address => address) internal modules;
    function setupModules(address to, bytes memory data) internal {
        require(modules[SENTINEL_MODULES] == address(0), "GS100");
        modules[SENTINEL_MODULES] = SENTINEL_MODULES;
        if (to != address(0))
            // Setup has to complete successfully or transaction fails.
            require(execute(to, 0, data, Enum.Operation.DelegateCall, gasleft()), "GS000");
    }
    /// @dev Allows to add a module to the whitelist.
    ///      This can only be done via a Safe transaction.
    /// @notice Enables the module `module` for the Safe.
    /// @param module Module to be whitelisted.
    function enableModule(address module) public authorized {
        // Module address cannot be null or sentinel.
        require(module != address(0) && module != SENTINEL_MODULES, "GS101");
        // Module cannot be added twice.
        require(modules[module] == address(0), "GS102");
        modules[module] = modules[SENTINEL_MODULES];
        modules[SENTINEL_MODULES] = module;
        emit EnabledModule(module);
    }
    /// @dev Allows to remove a module from the whitelist.
    ///      This can only be done via a Safe transaction.
    /// @notice Disables the module `module` for the Safe.
    /// @param prevModule Module that pointed to the module to be removed in the linked list
    /// @param module Module to be removed.
    function disableModule(address prevModule, address module) public authorized {
        // Validate module address and check that it corresponds to module index.
        require(module != address(0) && module != SENTINEL_MODULES, "GS101");
        require(modules[prevModule] == module, "GS103");
        modules[prevModule] = modules[module];
        modules[module] = address(0);
        emit DisabledModule(module);
    }
    /// @dev Allows a Module to execute a Safe transaction without any further confirmations.
    /// @param to Destination address of module transaction.
    /// @param value Ether value of module transaction.
    /// @param data Data payload of module transaction.
    /// @param operation Operation type of module transaction.
    function execTransactionFromModule(
        address to,
        uint256 value,
        bytes memory data,
        Enum.Operation operation
    ) public virtual returns (bool success) {
        // Only whitelisted modules are allowed.
        require(msg.sender != SENTINEL_MODULES && modules[msg.sender] != address(0), "GS104");
        // Execute transaction without further confirmations.
        success = execute(to, value, data, operation, gasleft());
        if (success) emit ExecutionFromModuleSuccess(msg.sender);
        else emit ExecutionFromModuleFailure(msg.sender);
    }
    /// @dev Allows a Module to execute a Safe transaction without any further confirmations and return data
    /// @param to Destination address of module transaction.
    /// @param value Ether value of module transaction.
    /// @param data Data payload of module transaction.
    /// @param operation Operation type of module transaction.
    function execTransactionFromModuleReturnData(
        address to,
        uint256 value,
        bytes memory data,
        Enum.Operation operation
    ) public returns (bool success, bytes memory returnData) {
        success = execTransactionFromModule(to, value, data, operation);
        // solhint-disable-next-line no-inline-assembly
        assembly {
            // Load free memory location
            let ptr := mload(0x40)
            // We allocate memory for the return data by setting the free memory location to
            // current free memory location + data size + 32 bytes for data size value
            mstore(0x40, add(ptr, add(returndatasize(), 0x20)))
            // Store the size
            mstore(ptr, returndatasize())
            // Store the data
            returndatacopy(add(ptr, 0x20), 0, returndatasize())
            // Point the return data to the correct memory location
            returnData := ptr
        }
    }
    /// @dev Returns if an module is enabled
    /// @return True if the module is enabled
    function isModuleEnabled(address module) public view returns (bool) {
        return SENTINEL_MODULES != module && modules[module] != address(0);
    }
    /// @dev Returns array of modules.
    /// @param start Start of the page.
    /// @param pageSize Maximum number of modules that should be returned.
    /// @return array Array of modules.
    /// @return next Start of the next page.
    function getModulesPaginated(address start, uint256 pageSize) external view returns (address[] memory array, address next) {
        // Init array with max page size
        array = new address[](pageSize);
        // Populate return array
        uint256 moduleCount = 0;
        address currentModule = modules[start];
        while (currentModule != address(0x0) && currentModule != SENTINEL_MODULES && moduleCount < pageSize) {
            array[moduleCount] = currentModule;
            currentModule = modules[currentModule];
            moduleCount++;
        }
        next = currentModule;
        // Set correct size of returned array
        // solhint-disable-next-line no-inline-assembly
        assembly {
            mstore(array, moduleCount)
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "../common/SelfAuthorized.sol";
/// @title OwnerManager - Manages a set of owners and a threshold to perform actions.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract OwnerManager is SelfAuthorized {
    event AddedOwner(address owner);
    event RemovedOwner(address owner);
    event ChangedThreshold(uint256 threshold);
    address internal constant SENTINEL_OWNERS = address(0x1);
    mapping(address => address) internal owners;
    uint256 internal ownerCount;
    uint256 internal threshold;
    /// @dev Setup function sets initial storage of contract.
    /// @param _owners List of Safe owners.
    /// @param _threshold Number of required confirmations for a Safe transaction.
    function setupOwners(address[] memory _owners, uint256 _threshold) internal {
        // Threshold can only be 0 at initialization.
        // Check ensures that setup function can only be called once.
        require(threshold == 0, "GS200");
        // Validate that threshold is smaller than number of added owners.
        require(_threshold <= _owners.length, "GS201");
        // There has to be at least one Safe owner.
        require(_threshold >= 1, "GS202");
        // Initializing Safe owners.
        address currentOwner = SENTINEL_OWNERS;
        for (uint256 i = 0; i < _owners.length; i++) {
            // Owner address cannot be null.
            address owner = _owners[i];
            require(owner != address(0) && owner != SENTINEL_OWNERS && owner != address(this) && currentOwner != owner, "GS203");
            // No duplicate owners allowed.
            require(owners[owner] == address(0), "GS204");
            owners[currentOwner] = owner;
            currentOwner = owner;
        }
        owners[currentOwner] = SENTINEL_OWNERS;
        ownerCount = _owners.length;
        threshold = _threshold;
    }
    /// @dev Allows to add a new owner to the Safe and update the threshold at the same time.
    ///      This can only be done via a Safe transaction.
    /// @notice Adds the owner `owner` to the Safe and updates the threshold to `_threshold`.
    /// @param owner New owner address.
    /// @param _threshold New threshold.
    function addOwnerWithThreshold(address owner, uint256 _threshold) public authorized {
        // Owner address cannot be null, the sentinel or the Safe itself.
        require(owner != address(0) && owner != SENTINEL_OWNERS && owner != address(this), "GS203");
        // No duplicate owners allowed.
        require(owners[owner] == address(0), "GS204");
        owners[owner] = owners[SENTINEL_OWNERS];
        owners[SENTINEL_OWNERS] = owner;
        ownerCount++;
        emit AddedOwner(owner);
        // Change threshold if threshold was changed.
        if (threshold != _threshold) changeThreshold(_threshold);
    }
    /// @dev Allows to remove an owner from the Safe and update the threshold at the same time.
    ///      This can only be done via a Safe transaction.
    /// @notice Removes the owner `owner` from the Safe and updates the threshold to `_threshold`.
    /// @param prevOwner Owner that pointed to the owner to be removed in the linked list
    /// @param owner Owner address to be removed.
    /// @param _threshold New threshold.
    function removeOwner(
        address prevOwner,
        address owner,
        uint256 _threshold
    ) public authorized {
        // Only allow to remove an owner, if threshold can still be reached.
        require(ownerCount - 1 >= _threshold, "GS201");
        // Validate owner address and check that it corresponds to owner index.
        require(owner != address(0) && owner != SENTINEL_OWNERS, "GS203");
        require(owners[prevOwner] == owner, "GS205");
        owners[prevOwner] = owners[owner];
        owners[owner] = address(0);
        ownerCount--;
        emit RemovedOwner(owner);
        // Change threshold if threshold was changed.
        if (threshold != _threshold) changeThreshold(_threshold);
    }
    /// @dev Allows to swap/replace an owner from the Safe with another address.
    ///      This can only be done via a Safe transaction.
    /// @notice Replaces the owner `oldOwner` in the Safe with `newOwner`.
    /// @param prevOwner Owner that pointed to the owner to be replaced in the linked list
    /// @param oldOwner Owner address to be replaced.
    /// @param newOwner New owner address.
    function swapOwner(
        address prevOwner,
        address oldOwner,
        address newOwner
    ) public authorized {
        // Owner address cannot be null, the sentinel or the Safe itself.
        require(newOwner != address(0) && newOwner != SENTINEL_OWNERS && newOwner != address(this), "GS203");
        // No duplicate owners allowed.
        require(owners[newOwner] == address(0), "GS204");
        // Validate oldOwner address and check that it corresponds to owner index.
        require(oldOwner != address(0) && oldOwner != SENTINEL_OWNERS, "GS203");
        require(owners[prevOwner] == oldOwner, "GS205");
        owners[newOwner] = owners[oldOwner];
        owners[prevOwner] = newOwner;
        owners[oldOwner] = address(0);
        emit RemovedOwner(oldOwner);
        emit AddedOwner(newOwner);
    }
    /// @dev Allows to update the number of required confirmations by Safe owners.
    ///      This can only be done via a Safe transaction.
    /// @notice Changes the threshold of the Safe to `_threshold`.
    /// @param _threshold New threshold.
    function changeThreshold(uint256 _threshold) public authorized {
        // Validate that threshold is smaller than number of owners.
        require(_threshold <= ownerCount, "GS201");
        // There has to be at least one Safe owner.
        require(_threshold >= 1, "GS202");
        threshold = _threshold;
        emit ChangedThreshold(threshold);
    }
    function getThreshold() public view returns (uint256) {
        return threshold;
    }
    function isOwner(address owner) public view returns (bool) {
        return owner != SENTINEL_OWNERS && owners[owner] != address(0);
    }
    /// @dev Returns array of owners.
    /// @return Array of Safe owners.
    function getOwners() public view returns (address[] memory) {
        address[] memory array = new address[](ownerCount);
        // populate return array
        uint256 index = 0;
        address currentOwner = owners[SENTINEL_OWNERS];
        while (currentOwner != SENTINEL_OWNERS) {
            array[index] = currentOwner;
            currentOwner = owners[currentOwner];
            index++;
        }
        return array;
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title Enum - Collection of enums
/// @author Richard Meissner - <[email protected]>
contract Enum {
    enum Operation {Call, DelegateCall}
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title EtherPaymentFallback - A contract that has a fallback to accept ether payments
/// @author Richard Meissner - <[email protected]>
contract EtherPaymentFallback {
    event SafeReceived(address indexed sender, uint256 value);
    /// @dev Fallback function accepts Ether transactions.
    receive() external payable {
        emit SafeReceived(msg.sender, msg.value);
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title SecuredTokenTransfer - Secure token transfer
/// @author Richard Meissner - <[email protected]>
contract SecuredTokenTransfer {
    /// @dev Transfers a token and returns if it was a success
    /// @param token Token that should be transferred
    /// @param receiver Receiver to whom the token should be transferred
    /// @param amount The amount of tokens that should be transferred
    function transferToken(
        address token,
        address receiver,
        uint256 amount
    ) internal returns (bool transferred) {
        // 0xa9059cbb - keccack("transfer(address,uint256)")
        bytes memory data = abi.encodeWithSelector(0xa9059cbb, receiver, amount);
        // solhint-disable-next-line no-inline-assembly
        assembly {
            // We write the return value to scratch space.
            // See https://docs.soliditylang.org/en/v0.7.6/internals/layout_in_memory.html#layout-in-memory
            let success := call(sub(gas(), 10000), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            switch returndatasize()
                case 0 {
                    transferred := success
                }
                case 0x20 {
                    transferred := iszero(or(iszero(success), iszero(mload(0))))
                }
                default {
                    transferred := 0
                }
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title SelfAuthorized - authorizes current contract to perform actions
/// @author Richard Meissner - <[email protected]>
contract SelfAuthorized {
    function requireSelfCall() private view {
        require(msg.sender == address(this), "GS031");
    }
    modifier authorized() {
        // This is a function call as it minimized the bytecode size
        requireSelfCall();
        _;
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title SignatureDecoder - Decodes signatures that a encoded as bytes
/// @author Richard Meissner - <[email protected]>
contract SignatureDecoder {
    /// @dev divides bytes signature into `uint8 v, bytes32 r, bytes32 s`.
    /// @notice Make sure to peform a bounds check for @param pos, to avoid out of bounds access on @param signatures
    /// @param pos which signature to read. A prior bounds check of this parameter should be performed, to avoid out of bounds access
    /// @param signatures concatenated rsv signatures
    function signatureSplit(bytes memory signatures, uint256 pos)
        internal
        pure
        returns (
            uint8 v,
            bytes32 r,
            bytes32 s
        )
    {
        // The signature format is a compact form of:
        //   {bytes32 r}{bytes32 s}{uint8 v}
        // Compact means, uint8 is not padded to 32 bytes.
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let signaturePos := mul(0x41, pos)
            r := mload(add(signatures, add(signaturePos, 0x20)))
            s := mload(add(signatures, add(signaturePos, 0x40)))
            // Here we are loading the last 32 bytes, including 31 bytes
            // of 's'. There is no 'mload8' to do this.
            //
            // 'byte' is not working due to the Solidity parser, so lets
            // use the second best option, 'and'
            v := and(mload(add(signatures, add(signaturePos, 0x41))), 0xff)
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title Singleton - Base for singleton contracts (should always be first super contract)
///         This contract is tightly coupled to our proxy contract (see `proxies/GnosisSafeProxy.sol`)
/// @author Richard Meissner - <[email protected]>
contract Singleton {
    // singleton always needs to be first declared variable, to ensure that it is at the same location as in the Proxy contract.
    // It should also always be ensured that the address is stored alone (uses a full word)
    address private singleton;
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title StorageAccessible - generic base contract that allows callers to access all internal storage.
/// @notice See https://github.com/gnosis/util-contracts/blob/bb5fe5fb5df6d8400998094fb1b32a178a47c3a1/contracts/StorageAccessible.sol
contract StorageAccessible {
    /**
     * @dev Reads `length` bytes of storage in the currents contract
     * @param offset - the offset in the current contract's storage in words to start reading from
     * @param length - the number of words (32 bytes) of data to read
     * @return the bytes that were read.
     */
    function getStorageAt(uint256 offset, uint256 length) public view returns (bytes memory) {
        bytes memory result = new bytes(length * 32);
        for (uint256 index = 0; index < length; index++) {
            // solhint-disable-next-line no-inline-assembly
            assembly {
                let word := sload(add(offset, index))
                mstore(add(add(result, 0x20), mul(index, 0x20)), word)
            }
        }
        return result;
    }
    /**
     * @dev Performs a delegetecall on a targetContract in the context of self.
     * Internally reverts execution to avoid side effects (making it static).
     *
     * This method reverts with data equal to `abi.encode(bool(success), bytes(response))`.
     * Specifically, the `returndata` after a call to this method will be:
     * `success:bool || response.length:uint256 || response:bytes`.
     *
     * @param targetContract Address of the contract containing the code to execute.
     * @param calldataPayload Calldata that should be sent to the target contract (encoded method name and arguments).
     */
    function simulateAndRevert(address targetContract, bytes memory calldataPayload) external {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let success := delegatecall(gas(), targetContract, add(calldataPayload, 0x20), mload(calldataPayload), 0, 0)
            mstore(0x00, success)
            mstore(0x20, returndatasize())
            returndatacopy(0x40, 0, returndatasize())
            revert(0, add(returndatasize(), 0x40))
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/**
 * @title GnosisSafeMath
 * @dev Math operations with safety checks that revert on error
 * Renamed from SafeMath to GnosisSafeMath to avoid conflicts
 * TODO: remove once open zeppelin update to solc 0.5.0
 */
library GnosisSafeMath {
    /**
     * @dev Multiplies two numbers, reverts on overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
        if (a == 0) {
            return 0;
        }
        uint256 c = a * b;
        require(c / a == b);
        return c;
    }
    /**
     * @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a);
        uint256 c = a - b;
        return c;
    }
    /**
     * @dev Adds two numbers, reverts on overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a);
        return c;
    }
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a >= b ? a : b;
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
contract ISignatureValidatorConstants {
    // bytes4(keccak256("isValidSignature(bytes,bytes)")
    bytes4 internal constant EIP1271_MAGIC_VALUE = 0x20c13b0b;
}
abstract contract ISignatureValidator is ISignatureValidatorConstants {
    /**
     * @dev Should return whether the signature provided is valid for the provided data
     * @param _data Arbitrary length data signed on the behalf of address(this)
     * @param _signature Signature byte array associated with _data
     *
     * MUST return the bytes4 magic value 0x20c13b0b when function passes.
     * MUST NOT modify state (using STATICCALL for solc < 0.5, view modifier for solc > 0.5)
     * MUST allow external calls
     */
    function isValidSignature(bytes memory _data, bytes memory _signature) public view virtual returns (bytes4);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
/*
             ░░░░░░░░░░░░░░              
        ░░▒▒░░░░░░░░░░░░░░░░░░░░        
      ░░▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░      
    ░░▒▒▒▒░░░░░░░░░░░░░░    ░░░░░░░░    
   ░▓▓▒▒▒▒░░░░░░░░░░░░        ░░░░░░░    
  ░▓▓▓▒▒▒▒░░░░░░░░░░░░        ░░░░░░░░  
  ░▓▓▓▒▒▒▒░░░░░░░░░░░░░░    ░░░░░░░░░░  
  ░▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░  
  ░▓▓▓▓▓▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░  
   ░▓▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░  
    ░░▓▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░    
    ░░▓▓▓▓▓▓▒▒▒▒▒▒▒▒░░░░░░░░░▒▒▒▒▒░░    
      ░░▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░      
          ░░▓▓▓▓▓▓▓▓▓▓▓▓▒▒░░░          
               OURS TRULY,
 */
interface Enjoy {
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)
pragma solidity ^0.8.0;
import "../utils/introspection/IERC165Upgradeable.sol";
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165Upgradeable {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
interface IContractMetadata {
    /// @notice Contract name returns the pretty contract name
    function contractName() external returns (string memory);
    /// @notice Contract URI returns the uri for more information about the given contract
    function contractURI() external returns (string memory);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
/// @notice Creator Commands used by minter modules passed back to the main modules
interface ICreatorCommands {
    /// @notice This enum is used to define supported creator action types.
    /// This can change in the future
    enum CreatorActions {
        // No operation - also the default for mintings that may not return a command
        NO_OP,
        // Send ether
        SEND_ETH,
        // Mint operation
        MINT
    }
    /// @notice This command is for
    struct Command {
        // Method for operation
        CreatorActions method;
        // Arguments used for this operation
        bytes args;
    }
    /// @notice This command set is returned from the minter back to the user
    struct CommandSet {
        Command[] commands;
        uint256 at;
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {IERC165Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC165Upgradeable.sol";
interface ILimitedMintPerAddress is IERC165Upgradeable {
    error UserExceedsMintLimit(address user, uint256 limit, uint256 requestedAmount);
    function getMintedPerWallet(address token, uint256 tokenId, address wallet) external view returns (uint256);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {IERC165Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC165Upgradeable.sol";
import {ICreatorCommands} from "./ICreatorCommands.sol";
/// @notice Minter standard interface
/// @dev Minters need to confirm to the ERC165 selector of type(IMinter1155).interfaceId
interface IMinter1155 is IERC165Upgradeable {
    function requestMint(
        address sender,
        uint256 tokenId,
        uint256 quantity,
        uint256 ethValueSent,
        bytes calldata minterArguments
    ) external returns (ICreatorCommands.CommandSet memory commands);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
interface IVersionedContract {
    function contractVersion() external returns (string memory);
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {IERC165Upgradeable} from "@openzeppelin/contracts-upgradeable/interfaces/IERC165Upgradeable.sol";
import {IMinter1155} from "../interfaces/IMinter1155.sol";
import {IContractMetadata} from "../interfaces/IContractMetadata.sol";
import {IVersionedContract} from "../interfaces/IVersionedContract.sol";
import {ICreatorCommands} from "../interfaces/ICreatorCommands.sol";
import {SaleCommandHelper} from "./utils/SaleCommandHelper.sol";
/// @notice Sales Strategy Helper contract template on top of IMinter1155
/// @author @iainnash / @tbtstl
abstract contract SaleStrategy is IMinter1155, IVersionedContract, IContractMetadata {
    /// @notice This function resets the sales configuration for a given tokenId and contract.
    /// @dev This function is intentioned to be called directly from the affected sales contract
    function resetSale(uint256 tokenId) external virtual;
    function supportsInterface(bytes4 interfaceId) public pure virtual returns (bool) {
        return interfaceId == type(IMinter1155).interfaceId || interfaceId == type(IERC165Upgradeable).interfaceId;
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {Enjoy} from "_imagine/mint/Enjoy.sol";
import {IMinter1155} from "../../interfaces/IMinter1155.sol";
import {ICreatorCommands} from "../../interfaces/ICreatorCommands.sol";
import {TransferHelperUtils} from "../../utils/TransferHelperUtils.sol";
import {SaleStrategy} from "../SaleStrategy.sol";
import {SaleCommandHelper} from "../utils/SaleCommandHelper.sol";
import {LimitedMintPerAddress} from "../utils/LimitedMintPerAddress.sol";
/*
             ░░░░░░░░░░░░░░              
        ░░▒▒░░░░░░░░░░░░░░░░░░░░        
      ░░▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░      
    ░░▒▒▒▒░░░░░░░░░░░░░░    ░░░░░░░░    
   ░▓▓▒▒▒▒░░░░░░░░░░░░        ░░░░░░░    
  ░▓▓▓▒▒▒▒░░░░░░░░░░░░        ░░░░░░░░  
  ░▓▓▓▒▒▒▒░░░░░░░░░░░░░░    ░░░░░░░░░░  
  ░▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░░  
  ░▓▓▓▓▓▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░░░░  
   ░▓▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░░░░  
    ░░▓▓▓▓▒▒▒▒▒▒░░░░░░░░░░░░░░░░░░░░    
    ░░▓▓▓▓▓▓▒▒▒▒▒▒▒▒░░░░░░░░░▒▒▒▒▒░░    
      ░░▓▓▓▓▓▓▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒▒░░      
          ░░▓▓▓▓▓▓▓▓▓▓▓▓▒▒░░░          
               OURS TRULY,
    github.com/ourzora/zora-1155-contracts
 */
/// @title ZoraCreatorFixedPriceSaleStrategy
/// @notice A sale strategy for ZoraCreator that allows for fixed price sales over a given time period
/// @author @iainnash / @tbtstl
contract ZoraCreatorFixedPriceSaleStrategy is Enjoy, SaleStrategy, LimitedMintPerAddress {
    struct SalesConfig {
        /// @notice Unix timestamp for the sale start
        uint64 saleStart;
        /// @notice Unix timestamp for the sale end
        uint64 saleEnd;
        /// @notice Max tokens that can be minted for an address, 0 if unlimited
        uint64 maxTokensPerAddress;
        /// @notice Price per token in eth wei
        uint96 pricePerToken;
        /// @notice Funds recipient (0 if no different funds recipient than the contract global)
        address fundsRecipient;
    }
    mapping(address => mapping(uint256 => SalesConfig)) internal salesConfigs;
    // target -> tokenId -> settings
    // target -> tokenId -> minter -> count
    using SaleCommandHelper for ICreatorCommands.CommandSet;
    function contractURI() external pure override returns (string memory) {
        return "https://github.com/ourzora/zora-1155-contracts/";
    }
    /// @notice The name of the sale strategy
    function contractName() external pure override returns (string memory) {
        return "Fixed Price Sale Strategy";
    }
    /// @notice The version of the sale strategy
    function contractVersion() external pure override returns (string memory) {
        return "1.0.0";
    }
    error WrongValueSent();
    error SaleEnded();
    error SaleHasNotStarted();
    event SaleSet(address indexed mediaContract, uint256 indexed tokenId, SalesConfig salesConfig);
    /// @notice Compiles and returns the commands needed to mint a token using this sales strategy
    /// @param tokenId The token ID to mint
    /// @param quantity The quantity of tokens to mint
    /// @param ethValueSent The amount of ETH sent with the transaction
    /// @param minterArguments The arguments passed to the minter, which should be the address to mint to
    function requestMint(
        address,
        uint256 tokenId,
        uint256 quantity,
        uint256 ethValueSent,
        bytes calldata minterArguments
    ) external returns (ICreatorCommands.CommandSet memory commands) {
        address mintTo = abi.decode(minterArguments, (address));
        SalesConfig memory config = salesConfigs[msg.sender][tokenId];
        // If sales config does not exist this first check will always fail.
        // Check sale end
        if (block.timestamp > config.saleEnd) {
            revert SaleEnded();
        }
        // Check sale start
        if (block.timestamp < config.saleStart) {
            revert SaleHasNotStarted();
        }
        // Check value sent
        if (config.pricePerToken * quantity != ethValueSent) {
            revert WrongValueSent();
        }
        // Check minted per address limit
        if (config.maxTokensPerAddress > 0) {
            _requireMintNotOverLimitAndUpdate(config.maxTokensPerAddress, quantity, msg.sender, tokenId, mintTo);
        }
        bool shouldTransferFunds = config.fundsRecipient != address(0);
        commands.setSize(shouldTransferFunds ? 2 : 1);
        // Mint command
        commands.mint(mintTo, tokenId, quantity);
        // Should transfer funds if funds recipient is set to a non-default address
        if (shouldTransferFunds) {
            commands.transfer(config.fundsRecipient, ethValueSent);
        }
    }
    /// @notice Sets the sale config for a given token
    function setSale(uint256 tokenId, SalesConfig memory salesConfig) external {
        salesConfigs[msg.sender][tokenId] = salesConfig;
        // Emit event
        emit SaleSet(msg.sender, tokenId, salesConfig);
    }
    /// @notice Deletes the sale config for a given token
    function resetSale(uint256 tokenId) external override {
        delete salesConfigs[msg.sender][tokenId];
        // Deleted sale emit event
        emit SaleSet(msg.sender, tokenId, salesConfigs[msg.sender][tokenId]);
    }
    /// @notice Returns the sale config for a given token
    function sale(address tokenContract, uint256 tokenId) external view returns (SalesConfig memory) {
        return salesConfigs[tokenContract][tokenId];
    }
    function supportsInterface(bytes4 interfaceId) public pure virtual override(LimitedMintPerAddress, SaleStrategy) returns (bool) {
        return super.supportsInterface(interfaceId) || LimitedMintPerAddress.supportsInterface(interfaceId) || SaleStrategy.supportsInterface(interfaceId);
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {ILimitedMintPerAddress} from "../../interfaces/ILimitedMintPerAddress.sol";
contract LimitedMintPerAddress is ILimitedMintPerAddress {
    /// @notice Storage for slot to check user mints
    /// @notice target contract -> tokenId -> minter user -> numberMinted
    /// @dev No gap or stroage interface since this is used within non-upgradeable contracts
    mapping(address => mapping(uint256 => mapping(address => uint256))) internal mintedPerAddress;
    function getMintedPerWallet(address tokenContract, uint256 tokenId, address wallet) external view returns (uint256) {
        return mintedPerAddress[tokenContract][tokenId][wallet];
    }
    function _requireMintNotOverLimitAndUpdate(uint256 limit, uint256 numRequestedMint, address tokenContract, uint256 tokenId, address wallet) internal {
        mintedPerAddress[tokenContract][tokenId][wallet] += numRequestedMint;
        if (mintedPerAddress[tokenContract][tokenId][wallet] > limit) {
            revert UserExceedsMintLimit(wallet, limit, mintedPerAddress[tokenContract][tokenId][wallet]);
        }
    }
    function supportsInterface(bytes4 interfaceId) public pure virtual override returns (bool) {
        return interfaceId == type(ILimitedMintPerAddress).interfaceId;
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
import {ICreatorCommands} from "../../interfaces/ICreatorCommands.sol";
/// @title SaleCommandHelper
/// @notice Helper library for creating commands for the sale contract
/// @author @iainnash / @tbtstl
library SaleCommandHelper {
    /// @notice Sets the size of commands and initializes command array. Empty entries are skipped by the resolver.
    /// @dev Beware: this removes all previous command entries from memory
    /// @param commandSet command set struct storage.
    /// @param size size to set for the new struct
    function setSize(ICreatorCommands.CommandSet memory commandSet, uint256 size) internal pure {
        commandSet.commands = new ICreatorCommands.Command[](size);
    }
    /// @notice Creates a command to mint a token
    /// @param commandSet The command set to add the command to
    /// @param to The address to mint to
    /// @param tokenId The token ID to mint
    /// @param quantity The quantity of tokens to mint
    function mint(ICreatorCommands.CommandSet memory commandSet, address to, uint256 tokenId, uint256 quantity) internal pure {
        unchecked {
            commandSet.commands[commandSet.at++] = ICreatorCommands.Command({
                method: ICreatorCommands.CreatorActions.MINT,
                args: abi.encode(to, tokenId, quantity)
            });
        }
    }
    /// @notice Creates a command to transfer ETH
    /// @param commandSet The command set to add the command to
    /// @param to The address to transfer to
    /// @param amount The amount of ETH to transfer
    function transfer(ICreatorCommands.CommandSet memory commandSet, address to, uint256 amount) internal pure {
        unchecked {
            commandSet.commands[commandSet.at++] = ICreatorCommands.Command({method: ICreatorCommands.CreatorActions.SEND_ETH, args: abi.encode(to, amount)});
        }
    }
}
// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;
/// @title TransferHelperUtils
/// @notice Helper functions for sending ETH
library TransferHelperUtils {
    /// @dev Gas limit to send funds
    uint256 internal constant FUNDS_SEND_LOW_GAS_LIMIT = 110_000;
    // @dev Gas limit to send funds – usable for splits, can use with withdraws
    uint256 internal constant FUNDS_SEND_GAS_LIMIT = 310_000;
    /// @notice Sends ETH to a recipient, making conservative estimates to not run out of gas
    /// @param recipient The address to send ETH to
    /// @param value The amount of ETH to send
    function safeSendETHLowLimit(address recipient, uint256 value) internal returns (bool success) {
        (success, ) = recipient.call{value: value, gas: FUNDS_SEND_LOW_GAS_LIMIT}("");
    }
    /// @notice Sends ETH to a recipient, making an attempt to not run out of gas
    /// @param recipient The address to send ETH to
    /// @param value The amount of ETH to send
    function safeSendETH(address recipient, uint256 value) internal returns (bool success) {
        (success, ) = recipient.call{value: value, gas: FUNDS_SEND_GAS_LIMIT}("");
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "./base/ModuleManager.sol";
import "./base/OwnerManager.sol";
import "./base/FallbackManager.sol";
import "./base/GuardManager.sol";
import "./common/EtherPaymentFallback.sol";
import "./common/Singleton.sol";
import "./common/SignatureDecoder.sol";
import "./common/SecuredTokenTransfer.sol";
import "./common/StorageAccessible.sol";
import "./interfaces/ISignatureValidator.sol";
import "./external/GnosisSafeMath.sol";
/// @title Gnosis Safe - A multisignature wallet with support for confirmations using signed messages based on ERC191.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract GnosisSafe is
    EtherPaymentFallback,
    Singleton,
    ModuleManager,
    OwnerManager,
    SignatureDecoder,
    SecuredTokenTransfer,
    ISignatureValidatorConstants,
    FallbackManager,
    StorageAccessible,
    GuardManager
{
    using GnosisSafeMath for uint256;
    string public constant VERSION = "1.3.0";
    // keccak256(
    //     "EIP712Domain(uint256 chainId,address verifyingContract)"
    // );
    bytes32 private constant DOMAIN_SEPARATOR_TYPEHASH = 0x47e79534a245952e8b16893a336b85a3d9ea9fa8c573f3d803afb92a79469218;
    // keccak256(
    //     "SafeTx(address to,uint256 value,bytes data,uint8 operation,uint256 safeTxGas,uint256 baseGas,uint256 gasPrice,address gasToken,address refundReceiver,uint256 nonce)"
    // );
    bytes32 private constant SAFE_TX_TYPEHASH = 0xbb8310d486368db6bd6f849402fdd73ad53d316b5a4b2644ad6efe0f941286d8;
    event SafeSetup(address indexed initiator, address[] owners, uint256 threshold, address initializer, address fallbackHandler);
    event ApproveHash(bytes32 indexed approvedHash, address indexed owner);
    event SignMsg(bytes32 indexed msgHash);
    event ExecutionFailure(bytes32 txHash, uint256 payment);
    event ExecutionSuccess(bytes32 txHash, uint256 payment);
    uint256 public nonce;
    bytes32 private _deprecatedDomainSeparator;
    // Mapping to keep track of all message hashes that have been approve by ALL REQUIRED owners
    mapping(bytes32 => uint256) public signedMessages;
    // Mapping to keep track of all hashes (message or transaction) that have been approve by ANY owners
    mapping(address => mapping(bytes32 => uint256)) public approvedHashes;
    // This constructor ensures that this contract can only be used as a master copy for Proxy contracts
    constructor() {
        // By setting the threshold it is not possible to call setup anymore,
        // so we create a Safe with 0 owners and threshold 1.
        // This is an unusable Safe, perfect for the singleton
        threshold = 1;
    }
    /// @dev Setup function sets initial storage of contract.
    /// @param _owners List of Safe owners.
    /// @param _threshold Number of required confirmations for a Safe transaction.
    /// @param to Contract address for optional delegate call.
    /// @param data Data payload for optional delegate call.
    /// @param fallbackHandler Handler for fallback calls to this contract
    /// @param paymentToken Token that should be used for the payment (0 is ETH)
    /// @param payment Value that should be paid
    /// @param paymentReceiver Adddress that should receive the payment (or 0 if tx.origin)
    function setup(
        address[] calldata _owners,
        uint256 _threshold,
        address to,
        bytes calldata data,
        address fallbackHandler,
        address paymentToken,
        uint256 payment,
        address payable paymentReceiver
    ) external {
        // setupOwners checks if the Threshold is already set, therefore preventing that this method is called twice
        setupOwners(_owners, _threshold);
        if (fallbackHandler != address(0)) internalSetFallbackHandler(fallbackHandler);
        // As setupOwners can only be called if the contract has not been initialized we don't need a check for setupModules
        setupModules(to, data);
        if (payment > 0) {
            // To avoid running into issues with EIP-170 we reuse the handlePayment function (to avoid adjusting code of that has been verified we do not adjust the method itself)
            // baseGas = 0, gasPrice = 1 and gas = payment => amount = (payment + 0) * 1 = payment
            handlePayment(payment, 0, 1, paymentToken, paymentReceiver);
        }
        emit SafeSetup(msg.sender, _owners, _threshold, to, fallbackHandler);
    }
    /// @dev Allows to execute a Safe transaction confirmed by required number of owners and then pays the account that submitted the transaction.
    ///      Note: The fees are always transferred, even if the user transaction fails.
    /// @param to Destination address of Safe transaction.
    /// @param value Ether value of Safe transaction.
    /// @param data Data payload of Safe transaction.
    /// @param operation Operation type of Safe transaction.
    /// @param safeTxGas Gas that should be used for the Safe transaction.
    /// @param baseGas Gas costs that are independent of the transaction execution(e.g. base transaction fee, signature check, payment of the refund)
    /// @param gasPrice Gas price that should be used for the payment calculation.
    /// @param gasToken Token address (or 0 if ETH) that is used for the payment.
    /// @param refundReceiver Address of receiver of gas payment (or 0 if tx.origin).
    /// @param signatures Packed signature data ({bytes32 r}{bytes32 s}{uint8 v})
    function execTransaction(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation,
        uint256 safeTxGas,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address payable refundReceiver,
        bytes memory signatures
    ) public payable virtual returns (bool success) {
        bytes32 txHash;
        // Use scope here to limit variable lifetime and prevent `stack too deep` errors
        {
            bytes memory txHashData =
                encodeTransactionData(
                    // Transaction info
                    to,
                    value,
                    data,
                    operation,
                    safeTxGas,
                    // Payment info
                    baseGas,
                    gasPrice,
                    gasToken,
                    refundReceiver,
                    // Signature info
                    nonce
                );
            // Increase nonce and execute transaction.
            nonce++;
            txHash = keccak256(txHashData);
            checkSignatures(txHash, txHashData, signatures);
        }
        address guard = getGuard();
        {
            if (guard != address(0)) {
                Guard(guard).checkTransaction(
                    // Transaction info
                    to,
                    value,
                    data,
                    operation,
                    safeTxGas,
                    // Payment info
                    baseGas,
                    gasPrice,
                    gasToken,
                    refundReceiver,
                    // Signature info
                    signatures,
                    msg.sender
                );
            }
        }
        // We require some gas to emit the events (at least 2500) after the execution and some to perform code until the execution (500)
        // We also include the 1/64 in the check that is not send along with a call to counteract potential shortings because of EIP-150
        require(gasleft() >= ((safeTxGas * 64) / 63).max(safeTxGas + 2500) + 500, "GS010");
        // Use scope here to limit variable lifetime and prevent `stack too deep` errors
        {
            uint256 gasUsed = gasleft();
            // If the gasPrice is 0 we assume that nearly all available gas can be used (it is always more than safeTxGas)
            // We only substract 2500 (compared to the 3000 before) to ensure that the amount passed is still higher than safeTxGas
            success = execute(to, value, data, operation, gasPrice == 0 ? (gasleft() - 2500) : safeTxGas);
            gasUsed = gasUsed.sub(gasleft());
            // If no safeTxGas and no gasPrice was set (e.g. both are 0), then the internal tx is required to be successful
            // This makes it possible to use `estimateGas` without issues, as it searches for the minimum gas where the tx doesn't revert
            require(success || safeTxGas != 0 || gasPrice != 0, "GS013");
            // We transfer the calculated tx costs to the tx.origin to avoid sending it to intermediate contracts that have made calls
            uint256 payment = 0;
            if (gasPrice > 0) {
                payment = handlePayment(gasUsed, baseGas, gasPrice, gasToken, refundReceiver);
            }
            if (success) emit ExecutionSuccess(txHash, payment);
            else emit ExecutionFailure(txHash, payment);
        }
        {
            if (guard != address(0)) {
                Guard(guard).checkAfterExecution(txHash, success);
            }
        }
    }
    function handlePayment(
        uint256 gasUsed,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address payable refundReceiver
    ) private returns (uint256 payment) {
        // solhint-disable-next-line avoid-tx-origin
        address payable receiver = refundReceiver == address(0) ? payable(tx.origin) : refundReceiver;
        if (gasToken == address(0)) {
            // For ETH we will only adjust the gas price to not be higher than the actual used gas price
            payment = gasUsed.add(baseGas).mul(gasPrice < tx.gasprice ? gasPrice : tx.gasprice);
            require(receiver.send(payment), "GS011");
        } else {
            payment = gasUsed.add(baseGas).mul(gasPrice);
            require(transferToken(gasToken, receiver, payment), "GS012");
        }
    }
    /**
     * @dev Checks whether the signature provided is valid for the provided data, hash. Will revert otherwise.
     * @param dataHash Hash of the data (could be either a message hash or transaction hash)
     * @param data That should be signed (this is passed to an external validator contract)
     * @param signatures Signature data that should be verified. Can be ECDSA signature, contract signature (EIP-1271) or approved hash.
     */
    function checkSignatures(
        bytes32 dataHash,
        bytes memory data,
        bytes memory signatures
    ) public view {
        // Load threshold to avoid multiple storage loads
        uint256 _threshold = threshold;
        // Check that a threshold is set
        require(_threshold > 0, "GS001");
        checkNSignatures(dataHash, data, signatures, _threshold);
    }
    /**
     * @dev Checks whether the signature provided is valid for the provided data, hash. Will revert otherwise.
     * @param dataHash Hash of the data (could be either a message hash or transaction hash)
     * @param data That should be signed (this is passed to an external validator contract)
     * @param signatures Signature data that should be verified. Can be ECDSA signature, contract signature (EIP-1271) or approved hash.
     * @param requiredSignatures Amount of required valid signatures.
     */
    function checkNSignatures(
        bytes32 dataHash,
        bytes memory data,
        bytes memory signatures,
        uint256 requiredSignatures
    ) public view {
        // Check that the provided signature data is not too short
        require(signatures.length >= requiredSignatures.mul(65), "GS020");
        // There cannot be an owner with address 0.
        address lastOwner = address(0);
        address currentOwner;
        uint8 v;
        bytes32 r;
        bytes32 s;
        uint256 i;
        for (i = 0; i < requiredSignatures; i++) {
            (v, r, s) = signatureSplit(signatures, i);
            if (v == 0) {
                // If v is 0 then it is a contract signature
                // When handling contract signatures the address of the contract is encoded into r
                currentOwner = address(uint160(uint256(r)));
                // Check that signature data pointer (s) is not pointing inside the static part of the signatures bytes
                // This check is not completely accurate, since it is possible that more signatures than the threshold are send.
                // Here we only check that the pointer is not pointing inside the part that is being processed
                require(uint256(s) >= requiredSignatures.mul(65), "GS021");
                // Check that signature data pointer (s) is in bounds (points to the length of data -> 32 bytes)
                require(uint256(s).add(32) <= signatures.length, "GS022");
                // Check if the contract signature is in bounds: start of data is s + 32 and end is start + signature length
                uint256 contractSignatureLen;
                // solhint-disable-next-line no-inline-assembly
                assembly {
                    contractSignatureLen := mload(add(add(signatures, s), 0x20))
                }
                require(uint256(s).add(32).add(contractSignatureLen) <= signatures.length, "GS023");
                // Check signature
                bytes memory contractSignature;
                // solhint-disable-next-line no-inline-assembly
                assembly {
                    // The signature data for contract signatures is appended to the concatenated signatures and the offset is stored in s
                    contractSignature := add(add(signatures, s), 0x20)
                }
                require(ISignatureValidator(currentOwner).isValidSignature(data, contractSignature) == EIP1271_MAGIC_VALUE, "GS024");
            } else if (v == 1) {
                // If v is 1 then it is an approved hash
                // When handling approved hashes the address of the approver is encoded into r
                currentOwner = address(uint160(uint256(r)));
                // Hashes are automatically approved by the sender of the message or when they have been pre-approved via a separate transaction
                require(msg.sender == currentOwner || approvedHashes[currentOwner][dataHash] != 0, "GS025");
            } else if (v > 30) {
                // If v > 30 then default va (27,28) has been adjusted for eth_sign flow
                // To support eth_sign and similar we adjust v and hash the messageHash with the Ethereum message prefix before applying ecrecover
                currentOwner = ecrecover(keccak256(abi.encodePacked("\\x19Ethereum Signed Message:\
32", dataHash)), v - 4, r, s);
            } else {
                // Default is the ecrecover flow with the provided data hash
                // Use ecrecover with the messageHash for EOA signatures
                currentOwner = ecrecover(dataHash, v, r, s);
            }
            require(currentOwner > lastOwner && owners[currentOwner] != address(0) && currentOwner != SENTINEL_OWNERS, "GS026");
            lastOwner = currentOwner;
        }
    }
    /// @dev Allows to estimate a Safe transaction.
    ///      This method is only meant for estimation purpose, therefore the call will always revert and encode the result in the revert data.
    ///      Since the `estimateGas` function includes refunds, call this method to get an estimated of the costs that are deducted from the safe with `execTransaction`
    /// @param to Destination address of Safe transaction.
    /// @param value Ether value of Safe transaction.
    /// @param data Data payload of Safe transaction.
    /// @param operation Operation type of Safe transaction.
    /// @return Estimate without refunds and overhead fees (base transaction and payload data gas costs).
    /// @notice Deprecated in favor of common/StorageAccessible.sol and will be removed in next version.
    function requiredTxGas(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation
    ) external returns (uint256) {
        uint256 startGas = gasleft();
        // We don't provide an error message here, as we use it to return the estimate
        require(execute(to, value, data, operation, gasleft()));
        uint256 requiredGas = startGas - gasleft();
        // Convert response to string and return via error message
        revert(string(abi.encodePacked(requiredGas)));
    }
    /**
     * @dev Marks a hash as approved. This can be used to validate a hash that is used by a signature.
     * @param hashToApprove The hash that should be marked as approved for signatures that are verified by this contract.
     */
    function approveHash(bytes32 hashToApprove) external {
        require(owners[msg.sender] != address(0), "GS030");
        approvedHashes[msg.sender][hashToApprove] = 1;
        emit ApproveHash(hashToApprove, msg.sender);
    }
    /// @dev Returns the chain id used by this contract.
    function getChainId() public view returns (uint256) {
        uint256 id;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            id := chainid()
        }
        return id;
    }
    function domainSeparator() public view returns (bytes32) {
        return keccak256(abi.encode(DOMAIN_SEPARATOR_TYPEHASH, getChainId(), this));
    }
    /// @dev Returns the bytes that are hashed to be signed by owners.
    /// @param to Destination address.
    /// @param value Ether value.
    /// @param data Data payload.
    /// @param operation Operation type.
    /// @param safeTxGas Gas that should be used for the safe transaction.
    /// @param baseGas Gas costs for that are independent of the transaction execution(e.g. base transaction fee, signature check, payment of the refund)
    /// @param gasPrice Maximum gas price that should be used for this transaction.
    /// @param gasToken Token address (or 0 if ETH) that is used for the payment.
    /// @param refundReceiver Address of receiver of gas payment (or 0 if tx.origin).
    /// @param _nonce Transaction nonce.
    /// @return Transaction hash bytes.
    function encodeTransactionData(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation,
        uint256 safeTxGas,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address refundReceiver,
        uint256 _nonce
    ) public view returns (bytes memory) {
        bytes32 safeTxHash =
            keccak256(
                abi.encode(
                    SAFE_TX_TYPEHASH,
                    to,
                    value,
                    keccak256(data),
                    operation,
                    safeTxGas,
                    baseGas,
                    gasPrice,
                    gasToken,
                    refundReceiver,
                    _nonce
                )
            );
        return abi.encodePacked(bytes1(0x19), bytes1(0x01), domainSeparator(), safeTxHash);
    }
    /// @dev Returns hash to be signed by owners.
    /// @param to Destination address.
    /// @param value Ether value.
    /// @param data Data payload.
    /// @param operation Operation type.
    /// @param safeTxGas Fas that should be used for the safe transaction.
    /// @param baseGas Gas costs for data used to trigger the safe transaction.
    /// @param gasPrice Maximum gas price that should be used for this transaction.
    /// @param gasToken Token address (or 0 if ETH) that is used for the payment.
    /// @param refundReceiver Address of receiver of gas payment (or 0 if tx.origin).
    /// @param _nonce Transaction nonce.
    /// @return Transaction hash.
    function getTransactionHash(
        address to,
        uint256 value,
        bytes calldata data,
        Enum.Operation operation,
        uint256 safeTxGas,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address refundReceiver,
        uint256 _nonce
    ) public view returns (bytes32) {
        return keccak256(encodeTransactionData(to, value, data, operation, safeTxGas, baseGas, gasPrice, gasToken, refundReceiver, _nonce));
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "../common/Enum.sol";
/// @title Executor - A contract that can execute transactions
/// @author Richard Meissner - <[email protected]>
contract Executor {
    function execute(
        address to,
        uint256 value,
        bytes memory data,
        Enum.Operation operation,
        uint256 txGas
    ) internal returns (bool success) {
        if (operation == Enum.Operation.DelegateCall) {
            // solhint-disable-next-line no-inline-assembly
            assembly {
                success := delegatecall(txGas, to, add(data, 0x20), mload(data), 0, 0)
            }
        } else {
            // solhint-disable-next-line no-inline-assembly
            assembly {
                success := call(txGas, to, value, add(data, 0x20), mload(data), 0, 0)
            }
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "../common/SelfAuthorized.sol";
/// @title Fallback Manager - A contract that manages fallback calls made to this contract
/// @author Richard Meissner - <[email protected]>
contract FallbackManager is SelfAuthorized {
    event ChangedFallbackHandler(address handler);
    // keccak256("fallback_manager.handler.address")
    bytes32 internal constant FALLBACK_HANDLER_STORAGE_SLOT = 0x6c9a6c4a39284e37ed1cf53d337577d14212a4870fb976a4366c693b939918d5;
    function internalSetFallbackHandler(address handler) internal {
        bytes32 slot = FALLBACK_HANDLER_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, handler)
        }
    }
    /// @dev Allows to add a contract to handle fallback calls.
    ///      Only fallback calls without value and with data will be forwarded.
    ///      This can only be done via a Safe transaction.
    /// @param handler contract to handle fallbacks calls.
    function setFallbackHandler(address handler) public authorized {
        internalSetFallbackHandler(handler);
        emit ChangedFallbackHandler(handler);
    }
    // solhint-disable-next-line payable-fallback,no-complex-fallback
    fallback() external {
        bytes32 slot = FALLBACK_HANDLER_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let handler := sload(slot)
            if iszero(handler) {
                return(0, 0)
            }
            calldatacopy(0, 0, calldatasize())
            // The msg.sender address is shifted to the left by 12 bytes to remove the padding
            // Then the address without padding is stored right after the calldata
            mstore(calldatasize(), shl(96, caller()))
            // Add 20 bytes for the address appended add the end
            let success := call(gas(), handler, 0, 0, add(calldatasize(), 20), 0, 0)
            returndatacopy(0, 0, returndatasize())
            if iszero(success) {
                revert(0, returndatasize())
            }
            return(0, returndatasize())
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "../common/Enum.sol";
import "../common/SelfAuthorized.sol";
interface Guard {
    function checkTransaction(
        address to,
        uint256 value,
        bytes memory data,
        Enum.Operation operation,
        uint256 safeTxGas,
        uint256 baseGas,
        uint256 gasPrice,
        address gasToken,
        address payable refundReceiver,
        bytes memory signatures,
        address msgSender
    ) external;
    function checkAfterExecution(bytes32 txHash, bool success) external;
}
/// @title Fallback Manager - A contract that manages fallback calls made to this contract
/// @author Richard Meissner - <[email protected]>
contract GuardManager is SelfAuthorized {
    event ChangedGuard(address guard);
    // keccak256("guard_manager.guard.address")
    bytes32 internal constant GUARD_STORAGE_SLOT = 0x4a204f620c8c5ccdca3fd54d003badd85ba500436a431f0cbda4f558c93c34c8;
    /// @dev Set a guard that checks transactions before execution
    /// @param guard The address of the guard to be used or the 0 address to disable the guard
    function setGuard(address guard) external authorized {
        bytes32 slot = GUARD_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            sstore(slot, guard)
        }
        emit ChangedGuard(guard);
    }
    function getGuard() internal view returns (address guard) {
        bytes32 slot = GUARD_STORAGE_SLOT;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            guard := sload(slot)
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "../common/Enum.sol";
import "../common/SelfAuthorized.sol";
import "./Executor.sol";
/// @title Module Manager - A contract that manages modules that can execute transactions via this contract
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract ModuleManager is SelfAuthorized, Executor {
    event EnabledModule(address module);
    event DisabledModule(address module);
    event ExecutionFromModuleSuccess(address indexed module);
    event ExecutionFromModuleFailure(address indexed module);
    address internal constant SENTINEL_MODULES = address(0x1);
    mapping(address => address) internal modules;
    function setupModules(address to, bytes memory data) internal {
        require(modules[SENTINEL_MODULES] == address(0), "GS100");
        modules[SENTINEL_MODULES] = SENTINEL_MODULES;
        if (to != address(0))
            // Setup has to complete successfully or transaction fails.
            require(execute(to, 0, data, Enum.Operation.DelegateCall, gasleft()), "GS000");
    }
    /// @dev Allows to add a module to the whitelist.
    ///      This can only be done via a Safe transaction.
    /// @notice Enables the module `module` for the Safe.
    /// @param module Module to be whitelisted.
    function enableModule(address module) public authorized {
        // Module address cannot be null or sentinel.
        require(module != address(0) && module != SENTINEL_MODULES, "GS101");
        // Module cannot be added twice.
        require(modules[module] == address(0), "GS102");
        modules[module] = modules[SENTINEL_MODULES];
        modules[SENTINEL_MODULES] = module;
        emit EnabledModule(module);
    }
    /// @dev Allows to remove a module from the whitelist.
    ///      This can only be done via a Safe transaction.
    /// @notice Disables the module `module` for the Safe.
    /// @param prevModule Module that pointed to the module to be removed in the linked list
    /// @param module Module to be removed.
    function disableModule(address prevModule, address module) public authorized {
        // Validate module address and check that it corresponds to module index.
        require(module != address(0) && module != SENTINEL_MODULES, "GS101");
        require(modules[prevModule] == module, "GS103");
        modules[prevModule] = modules[module];
        modules[module] = address(0);
        emit DisabledModule(module);
    }
    /// @dev Allows a Module to execute a Safe transaction without any further confirmations.
    /// @param to Destination address of module transaction.
    /// @param value Ether value of module transaction.
    /// @param data Data payload of module transaction.
    /// @param operation Operation type of module transaction.
    function execTransactionFromModule(
        address to,
        uint256 value,
        bytes memory data,
        Enum.Operation operation
    ) public virtual returns (bool success) {
        // Only whitelisted modules are allowed.
        require(msg.sender != SENTINEL_MODULES && modules[msg.sender] != address(0), "GS104");
        // Execute transaction without further confirmations.
        success = execute(to, value, data, operation, gasleft());
        if (success) emit ExecutionFromModuleSuccess(msg.sender);
        else emit ExecutionFromModuleFailure(msg.sender);
    }
    /// @dev Allows a Module to execute a Safe transaction without any further confirmations and return data
    /// @param to Destination address of module transaction.
    /// @param value Ether value of module transaction.
    /// @param data Data payload of module transaction.
    /// @param operation Operation type of module transaction.
    function execTransactionFromModuleReturnData(
        address to,
        uint256 value,
        bytes memory data,
        Enum.Operation operation
    ) public returns (bool success, bytes memory returnData) {
        success = execTransactionFromModule(to, value, data, operation);
        // solhint-disable-next-line no-inline-assembly
        assembly {
            // Load free memory location
            let ptr := mload(0x40)
            // We allocate memory for the return data by setting the free memory location to
            // current free memory location + data size + 32 bytes for data size value
            mstore(0x40, add(ptr, add(returndatasize(), 0x20)))
            // Store the size
            mstore(ptr, returndatasize())
            // Store the data
            returndatacopy(add(ptr, 0x20), 0, returndatasize())
            // Point the return data to the correct memory location
            returnData := ptr
        }
    }
    /// @dev Returns if an module is enabled
    /// @return True if the module is enabled
    function isModuleEnabled(address module) public view returns (bool) {
        return SENTINEL_MODULES != module && modules[module] != address(0);
    }
    /// @dev Returns array of modules.
    /// @param start Start of the page.
    /// @param pageSize Maximum number of modules that should be returned.
    /// @return array Array of modules.
    /// @return next Start of the next page.
    function getModulesPaginated(address start, uint256 pageSize) external view returns (address[] memory array, address next) {
        // Init array with max page size
        array = new address[](pageSize);
        // Populate return array
        uint256 moduleCount = 0;
        address currentModule = modules[start];
        while (currentModule != address(0x0) && currentModule != SENTINEL_MODULES && moduleCount < pageSize) {
            array[moduleCount] = currentModule;
            currentModule = modules[currentModule];
            moduleCount++;
        }
        next = currentModule;
        // Set correct size of returned array
        // solhint-disable-next-line no-inline-assembly
        assembly {
            mstore(array, moduleCount)
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "../common/SelfAuthorized.sol";
/// @title OwnerManager - Manages a set of owners and a threshold to perform actions.
/// @author Stefan George - <[email protected]>
/// @author Richard Meissner - <[email protected]>
contract OwnerManager is SelfAuthorized {
    event AddedOwner(address owner);
    event RemovedOwner(address owner);
    event ChangedThreshold(uint256 threshold);
    address internal constant SENTINEL_OWNERS = address(0x1);
    mapping(address => address) internal owners;
    uint256 internal ownerCount;
    uint256 internal threshold;
    /// @dev Setup function sets initial storage of contract.
    /// @param _owners List of Safe owners.
    /// @param _threshold Number of required confirmations for a Safe transaction.
    function setupOwners(address[] memory _owners, uint256 _threshold) internal {
        // Threshold can only be 0 at initialization.
        // Check ensures that setup function can only be called once.
        require(threshold == 0, "GS200");
        // Validate that threshold is smaller than number of added owners.
        require(_threshold <= _owners.length, "GS201");
        // There has to be at least one Safe owner.
        require(_threshold >= 1, "GS202");
        // Initializing Safe owners.
        address currentOwner = SENTINEL_OWNERS;
        for (uint256 i = 0; i < _owners.length; i++) {
            // Owner address cannot be null.
            address owner = _owners[i];
            require(owner != address(0) && owner != SENTINEL_OWNERS && owner != address(this) && currentOwner != owner, "GS203");
            // No duplicate owners allowed.
            require(owners[owner] == address(0), "GS204");
            owners[currentOwner] = owner;
            currentOwner = owner;
        }
        owners[currentOwner] = SENTINEL_OWNERS;
        ownerCount = _owners.length;
        threshold = _threshold;
    }
    /// @dev Allows to add a new owner to the Safe and update the threshold at the same time.
    ///      This can only be done via a Safe transaction.
    /// @notice Adds the owner `owner` to the Safe and updates the threshold to `_threshold`.
    /// @param owner New owner address.
    /// @param _threshold New threshold.
    function addOwnerWithThreshold(address owner, uint256 _threshold) public authorized {
        // Owner address cannot be null, the sentinel or the Safe itself.
        require(owner != address(0) && owner != SENTINEL_OWNERS && owner != address(this), "GS203");
        // No duplicate owners allowed.
        require(owners[owner] == address(0), "GS204");
        owners[owner] = owners[SENTINEL_OWNERS];
        owners[SENTINEL_OWNERS] = owner;
        ownerCount++;
        emit AddedOwner(owner);
        // Change threshold if threshold was changed.
        if (threshold != _threshold) changeThreshold(_threshold);
    }
    /// @dev Allows to remove an owner from the Safe and update the threshold at the same time.
    ///      This can only be done via a Safe transaction.
    /// @notice Removes the owner `owner` from the Safe and updates the threshold to `_threshold`.
    /// @param prevOwner Owner that pointed to the owner to be removed in the linked list
    /// @param owner Owner address to be removed.
    /// @param _threshold New threshold.
    function removeOwner(
        address prevOwner,
        address owner,
        uint256 _threshold
    ) public authorized {
        // Only allow to remove an owner, if threshold can still be reached.
        require(ownerCount - 1 >= _threshold, "GS201");
        // Validate owner address and check that it corresponds to owner index.
        require(owner != address(0) && owner != SENTINEL_OWNERS, "GS203");
        require(owners[prevOwner] == owner, "GS205");
        owners[prevOwner] = owners[owner];
        owners[owner] = address(0);
        ownerCount--;
        emit RemovedOwner(owner);
        // Change threshold if threshold was changed.
        if (threshold != _threshold) changeThreshold(_threshold);
    }
    /// @dev Allows to swap/replace an owner from the Safe with another address.
    ///      This can only be done via a Safe transaction.
    /// @notice Replaces the owner `oldOwner` in the Safe with `newOwner`.
    /// @param prevOwner Owner that pointed to the owner to be replaced in the linked list
    /// @param oldOwner Owner address to be replaced.
    /// @param newOwner New owner address.
    function swapOwner(
        address prevOwner,
        address oldOwner,
        address newOwner
    ) public authorized {
        // Owner address cannot be null, the sentinel or the Safe itself.
        require(newOwner != address(0) && newOwner != SENTINEL_OWNERS && newOwner != address(this), "GS203");
        // No duplicate owners allowed.
        require(owners[newOwner] == address(0), "GS204");
        // Validate oldOwner address and check that it corresponds to owner index.
        require(oldOwner != address(0) && oldOwner != SENTINEL_OWNERS, "GS203");
        require(owners[prevOwner] == oldOwner, "GS205");
        owners[newOwner] = owners[oldOwner];
        owners[prevOwner] = newOwner;
        owners[oldOwner] = address(0);
        emit RemovedOwner(oldOwner);
        emit AddedOwner(newOwner);
    }
    /// @dev Allows to update the number of required confirmations by Safe owners.
    ///      This can only be done via a Safe transaction.
    /// @notice Changes the threshold of the Safe to `_threshold`.
    /// @param _threshold New threshold.
    function changeThreshold(uint256 _threshold) public authorized {
        // Validate that threshold is smaller than number of owners.
        require(_threshold <= ownerCount, "GS201");
        // There has to be at least one Safe owner.
        require(_threshold >= 1, "GS202");
        threshold = _threshold;
        emit ChangedThreshold(threshold);
    }
    function getThreshold() public view returns (uint256) {
        return threshold;
    }
    function isOwner(address owner) public view returns (bool) {
        return owner != SENTINEL_OWNERS && owners[owner] != address(0);
    }
    /// @dev Returns array of owners.
    /// @return Array of Safe owners.
    function getOwners() public view returns (address[] memory) {
        address[] memory array = new address[](ownerCount);
        // populate return array
        uint256 index = 0;
        address currentOwner = owners[SENTINEL_OWNERS];
        while (currentOwner != SENTINEL_OWNERS) {
            array[index] = currentOwner;
            currentOwner = owners[currentOwner];
            index++;
        }
        return array;
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title Enum - Collection of enums
/// @author Richard Meissner - <[email protected]>
contract Enum {
    enum Operation {Call, DelegateCall}
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title EtherPaymentFallback - A contract that has a fallback to accept ether payments
/// @author Richard Meissner - <[email protected]>
contract EtherPaymentFallback {
    event SafeReceived(address indexed sender, uint256 value);
    /// @dev Fallback function accepts Ether transactions.
    receive() external payable {
        emit SafeReceived(msg.sender, msg.value);
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title SecuredTokenTransfer - Secure token transfer
/// @author Richard Meissner - <[email protected]>
contract SecuredTokenTransfer {
    /// @dev Transfers a token and returns if it was a success
    /// @param token Token that should be transferred
    /// @param receiver Receiver to whom the token should be transferred
    /// @param amount The amount of tokens that should be transferred
    function transferToken(
        address token,
        address receiver,
        uint256 amount
    ) internal returns (bool transferred) {
        // 0xa9059cbb - keccack("transfer(address,uint256)")
        bytes memory data = abi.encodeWithSelector(0xa9059cbb, receiver, amount);
        // solhint-disable-next-line no-inline-assembly
        assembly {
            // We write the return value to scratch space.
            // See https://docs.soliditylang.org/en/v0.7.6/internals/layout_in_memory.html#layout-in-memory
            let success := call(sub(gas(), 10000), token, 0, add(data, 0x20), mload(data), 0, 0x20)
            switch returndatasize()
                case 0 {
                    transferred := success
                }
                case 0x20 {
                    transferred := iszero(or(iszero(success), iszero(mload(0))))
                }
                default {
                    transferred := 0
                }
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title SelfAuthorized - authorizes current contract to perform actions
/// @author Richard Meissner - <[email protected]>
contract SelfAuthorized {
    function requireSelfCall() private view {
        require(msg.sender == address(this), "GS031");
    }
    modifier authorized() {
        // This is a function call as it minimized the bytecode size
        requireSelfCall();
        _;
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title SignatureDecoder - Decodes signatures that a encoded as bytes
/// @author Richard Meissner - <[email protected]>
contract SignatureDecoder {
    /// @dev divides bytes signature into `uint8 v, bytes32 r, bytes32 s`.
    /// @notice Make sure to peform a bounds check for @param pos, to avoid out of bounds access on @param signatures
    /// @param pos which signature to read. A prior bounds check of this parameter should be performed, to avoid out of bounds access
    /// @param signatures concatenated rsv signatures
    function signatureSplit(bytes memory signatures, uint256 pos)
        internal
        pure
        returns (
            uint8 v,
            bytes32 r,
            bytes32 s
        )
    {
        // The signature format is a compact form of:
        //   {bytes32 r}{bytes32 s}{uint8 v}
        // Compact means, uint8 is not padded to 32 bytes.
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let signaturePos := mul(0x41, pos)
            r := mload(add(signatures, add(signaturePos, 0x20)))
            s := mload(add(signatures, add(signaturePos, 0x40)))
            // Here we are loading the last 32 bytes, including 31 bytes
            // of 's'. There is no 'mload8' to do this.
            //
            // 'byte' is not working due to the Solidity parser, so lets
            // use the second best option, 'and'
            v := and(mload(add(signatures, add(signaturePos, 0x41))), 0xff)
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title Singleton - Base for singleton contracts (should always be first super contract)
///         This contract is tightly coupled to our proxy contract (see `proxies/GnosisSafeProxy.sol`)
/// @author Richard Meissner - <[email protected]>
contract Singleton {
    // singleton always needs to be first declared variable, to ensure that it is at the same location as in the Proxy contract.
    // It should also always be ensured that the address is stored alone (uses a full word)
    address private singleton;
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title StorageAccessible - generic base contract that allows callers to access all internal storage.
/// @notice See https://github.com/gnosis/util-contracts/blob/bb5fe5fb5df6d8400998094fb1b32a178a47c3a1/contracts/StorageAccessible.sol
contract StorageAccessible {
    /**
     * @dev Reads `length` bytes of storage in the currents contract
     * @param offset - the offset in the current contract's storage in words to start reading from
     * @param length - the number of words (32 bytes) of data to read
     * @return the bytes that were read.
     */
    function getStorageAt(uint256 offset, uint256 length) public view returns (bytes memory) {
        bytes memory result = new bytes(length * 32);
        for (uint256 index = 0; index < length; index++) {
            // solhint-disable-next-line no-inline-assembly
            assembly {
                let word := sload(add(offset, index))
                mstore(add(add(result, 0x20), mul(index, 0x20)), word)
            }
        }
        return result;
    }
    /**
     * @dev Performs a delegetecall on a targetContract in the context of self.
     * Internally reverts execution to avoid side effects (making it static).
     *
     * This method reverts with data equal to `abi.encode(bool(success), bytes(response))`.
     * Specifically, the `returndata` after a call to this method will be:
     * `success:bool || response.length:uint256 || response:bytes`.
     *
     * @param targetContract Address of the contract containing the code to execute.
     * @param calldataPayload Calldata that should be sent to the target contract (encoded method name and arguments).
     */
    function simulateAndRevert(address targetContract, bytes memory calldataPayload) external {
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let success := delegatecall(gas(), targetContract, add(calldataPayload, 0x20), mload(calldataPayload), 0, 0)
            mstore(0x00, success)
            mstore(0x20, returndatasize())
            returndatacopy(0x40, 0, returndatasize())
            revert(0, add(returndatasize(), 0x40))
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/**
 * @title GnosisSafeMath
 * @dev Math operations with safety checks that revert on error
 * Renamed from SafeMath to GnosisSafeMath to avoid conflicts
 * TODO: remove once open zeppelin update to solc 0.5.0
 */
library GnosisSafeMath {
    /**
     * @dev Multiplies two numbers, reverts on overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-solidity/pull/522
        if (a == 0) {
            return 0;
        }
        uint256 c = a * b;
        require(c / a == b);
        return c;
    }
    /**
     * @dev Subtracts two numbers, reverts on overflow (i.e. if subtrahend is greater than minuend).
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        require(b <= a);
        uint256 c = a - b;
        return c;
    }
    /**
     * @dev Adds two numbers, reverts on overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a);
        return c;
    }
    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a >= b ? a : b;
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "./DefaultCallbackHandler.sol";
import "../interfaces/ISignatureValidator.sol";
import "../GnosisSafe.sol";
/// @title Compatibility Fallback Handler - fallback handler to provider compatibility between pre 1.3.0 and 1.3.0+ Safe contracts
/// @author Richard Meissner - <[email protected]>
contract CompatibilityFallbackHandler is DefaultCallbackHandler, ISignatureValidator {
    //keccak256(
    //    "SafeMessage(bytes message)"
    //);
    bytes32 private constant SAFE_MSG_TYPEHASH = 0x60b3cbf8b4a223d68d641b3b6ddf9a298e7f33710cf3d3a9d1146b5a6150fbca;
    bytes4 internal constant SIMULATE_SELECTOR = bytes4(keccak256("simulate(address,bytes)"));
    address internal constant SENTINEL_MODULES = address(0x1);
    bytes4 internal constant UPDATED_MAGIC_VALUE = 0x1626ba7e;
    /**
     * Implementation of ISignatureValidator (see `interfaces/ISignatureValidator.sol`)
     * @dev Should return whether the signature provided is valid for the provided data.
     * @param _data Arbitrary length data signed on the behalf of address(msg.sender)
     * @param _signature Signature byte array associated with _data
     * @return a bool upon valid or invalid signature with corresponding _data
     */
    function isValidSignature(bytes calldata _data, bytes calldata _signature) public view override returns (bytes4) {
        // Caller should be a Safe
        GnosisSafe safe = GnosisSafe(payable(msg.sender));
        bytes32 messageHash = getMessageHashForSafe(safe, _data);
        if (_signature.length == 0) {
            require(safe.signedMessages(messageHash) != 0, "Hash not approved");
        } else {
            safe.checkSignatures(messageHash, _data, _signature);
        }
        return EIP1271_MAGIC_VALUE;
    }
    /// @dev Returns hash of a message that can be signed by owners.
    /// @param message Message that should be hashed
    /// @return Message hash.
    function getMessageHash(bytes memory message) public view returns (bytes32) {
        return getMessageHashForSafe(GnosisSafe(payable(msg.sender)), message);
    }
    /// @dev Returns hash of a message that can be signed by owners.
    /// @param safe Safe to which the message is targeted
    /// @param message Message that should be hashed
    /// @return Message hash.
    function getMessageHashForSafe(GnosisSafe safe, bytes memory message) public view returns (bytes32) {
        bytes32 safeMessageHash = keccak256(abi.encode(SAFE_MSG_TYPEHASH, keccak256(message)));
        return keccak256(abi.encodePacked(bytes1(0x19), bytes1(0x01), safe.domainSeparator(), safeMessageHash));
    }
    /**
     * Implementation of updated EIP-1271
     * @dev Should return whether the signature provided is valid for the provided data.
     *       The save does not implement the interface since `checkSignatures` is not a view method.
     *       The method will not perform any state changes (see parameters of `checkSignatures`)
     * @param _dataHash Hash of the data signed on the behalf of address(msg.sender)
     * @param _signature Signature byte array associated with _dataHash
     * @return a bool upon valid or invalid signature with corresponding _dataHash
     * @notice See https://github.com/gnosis/util-contracts/blob/bb5fe5fb5df6d8400998094fb1b32a178a47c3a1/contracts/StorageAccessible.sol
     */
    function isValidSignature(bytes32 _dataHash, bytes calldata _signature) external view returns (bytes4) {
        ISignatureValidator validator = ISignatureValidator(msg.sender);
        bytes4 value = validator.isValidSignature(abi.encode(_dataHash), _signature);
        return (value == EIP1271_MAGIC_VALUE) ? UPDATED_MAGIC_VALUE : bytes4(0);
    }
    /// @dev Returns array of first 10 modules.
    /// @return Array of modules.
    function getModules() external view returns (address[] memory) {
        // Caller should be a Safe
        GnosisSafe safe = GnosisSafe(payable(msg.sender));
        (address[] memory array, ) = safe.getModulesPaginated(SENTINEL_MODULES, 10);
        return array;
    }
    /**
     * @dev Performs a delegetecall on a targetContract in the context of self.
     * Internally reverts execution to avoid side effects (making it static). Catches revert and returns encoded result as bytes.
     * @param targetContract Address of the contract containing the code to execute.
     * @param calldataPayload Calldata that should be sent to the target contract (encoded method name and arguments).
     */
    function simulate(address targetContract, bytes calldata calldataPayload) external returns (bytes memory response) {
        // Suppress compiler warnings about not using parameters, while allowing
        // parameters to keep names for documentation purposes. This does not
        // generate code.
        targetContract;
        calldataPayload;
        // solhint-disable-next-line no-inline-assembly
        assembly {
            let internalCalldata := mload(0x40)
            // Store `simulateAndRevert.selector`.
            // String representation is used to force right padding
            mstore(internalCalldata, "\\xb4\\xfa\\xba\\x09")
            // Abuse the fact that both this and the internal methods have the
            // same signature, and differ only in symbol name (and therefore,
            // selector) and copy calldata directly. This saves us approximately
            // 250 bytes of code and 300 gas at runtime over the
            // `abi.encodeWithSelector` builtin.
            calldatacopy(add(internalCalldata, 0x04), 0x04, sub(calldatasize(), 0x04))
            // `pop` is required here by the compiler, as top level expressions
            // can't have return values in inline assembly. `call` typically
            // returns a 0 or 1 value indicated whether or not it reverted, but
            // since we know it will always revert, we can safely ignore it.
            pop(
                call(
                    gas(),
                    // address() has been changed to caller() to use the implementation of the Safe
                    caller(),
                    0,
                    internalCalldata,
                    calldatasize(),
                    // The `simulateAndRevert` call always reverts, and
                    // instead encodes whether or not it was successful in the return
                    // data. The first 32-byte word of the return data contains the
                    // `success` value, so write it to memory address 0x00 (which is
                    // reserved Solidity scratch space and OK to use).
                    0x00,
                    0x20
                )
            )
            // Allocate and copy the response bytes, making sure to increment
            // the free memory pointer accordingly (in case this method is
            // called as an internal function). The remaining `returndata[0x20:]`
            // contains the ABI encoded response bytes, so we can just write it
            // as is to memory.
            let responseSize := sub(returndatasize(), 0x20)
            response := mload(0x40)
            mstore(0x40, add(response, responseSize))
            returndatacopy(response, 0x20, responseSize)
            if iszero(mload(0x00)) {
                revert(add(response, 0x20), mload(response))
            }
        }
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
import "../interfaces/ERC1155TokenReceiver.sol";
import "../interfaces/ERC721TokenReceiver.sol";
import "../interfaces/ERC777TokensRecipient.sol";
import "../interfaces/IERC165.sol";
/// @title Default Callback Handler - returns true for known token callbacks
/// @author Richard Meissner - <[email protected]>
contract DefaultCallbackHandler is ERC1155TokenReceiver, ERC777TokensRecipient, ERC721TokenReceiver, IERC165 {
    string public constant NAME = "Default Callback Handler";
    string public constant VERSION = "1.0.0";
    function onERC1155Received(
        address,
        address,
        uint256,
        uint256,
        bytes calldata
    ) external pure override returns (bytes4) {
        return 0xf23a6e61;
    }
    function onERC1155BatchReceived(
        address,
        address,
        uint256[] calldata,
        uint256[] calldata,
        bytes calldata
    ) external pure override returns (bytes4) {
        return 0xbc197c81;
    }
    function onERC721Received(
        address,
        address,
        uint256,
        bytes calldata
    ) external pure override returns (bytes4) {
        return 0x150b7a02;
    }
    function tokensReceived(
        address,
        address,
        address,
        uint256,
        bytes calldata,
        bytes calldata
    ) external pure override {
        // We implement this for completeness, doesn't really have any value
    }
    function supportsInterface(bytes4 interfaceId) external view virtual override returns (bool) {
        return
            interfaceId == type(ERC1155TokenReceiver).interfaceId ||
            interfaceId == type(ERC721TokenReceiver).interfaceId ||
            interfaceId == type(IERC165).interfaceId;
    }
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/**
    Note: The ERC-165 identifier for this interface is 0x4e2312e0.
*/
interface ERC1155TokenReceiver {
    /**
        @notice Handle the receipt of a single ERC1155 token type.
        @dev An ERC1155-compliant smart contract MUST call this function on the token recipient contract, at the end of a `safeTransferFrom` after the balance has been updated.        
        This function MUST return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` (i.e. 0xf23a6e61) if it accepts the transfer.
        This function MUST revert if it rejects the transfer.
        Return of any other value than the prescribed keccak256 generated value MUST result in the transaction being reverted by the caller.
        @param _operator  The address which initiated the transfer (i.e. msg.sender)
        @param _from      The address which previously owned the token
        @param _id        The ID of the token being transferred
        @param _value     The amount of tokens being transferred
        @param _data      Additional data with no specified format
        @return           `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
    */
    function onERC1155Received(
        address _operator,
        address _from,
        uint256 _id,
        uint256 _value,
        bytes calldata _data
    ) external returns (bytes4);
    /**
        @notice Handle the receipt of multiple ERC1155 token types.
        @dev An ERC1155-compliant smart contract MUST call this function on the token recipient contract, at the end of a `safeBatchTransferFrom` after the balances have been updated.        
        This function MUST return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` (i.e. 0xbc197c81) if it accepts the transfer(s).
        This function MUST revert if it rejects the transfer(s).
        Return of any other value than the prescribed keccak256 generated value MUST result in the transaction being reverted by the caller.
        @param _operator  The address which initiated the batch transfer (i.e. msg.sender)
        @param _from      The address which previously owned the token
        @param _ids       An array containing ids of each token being transferred (order and length must match _values array)
        @param _values    An array containing amounts of each token being transferred (order and length must match _ids array)
        @param _data      Additional data with no specified format
        @return           `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
    */
    function onERC1155BatchReceived(
        address _operator,
        address _from,
        uint256[] calldata _ids,
        uint256[] calldata _values,
        bytes calldata _data
    ) external returns (bytes4);
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @dev Note: the ERC-165 identifier for this interface is 0x150b7a02.
interface ERC721TokenReceiver {
    /// @notice Handle the receipt of an NFT
    /// @dev The ERC721 smart contract calls this function on the recipient
    ///  after a `transfer`. This function MAY throw to revert and reject the
    ///  transfer. Return of other than the magic value MUST result in the
    ///  transaction being reverted.
    ///  Note: the contract address is always the message sender.
    /// @param _operator The address which called `safeTransferFrom` function
    /// @param _from The address which previously owned the token
    /// @param _tokenId The NFT identifier which is being transferred
    /// @param _data Additional data with no specified format
    /// @return `bytes4(keccak256("onERC721Received(address,address,uint256,bytes)"))`
    ///  unless throwing
    function onERC721Received(
        address _operator,
        address _from,
        uint256 _tokenId,
        bytes calldata _data
    ) external returns (bytes4);
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
interface ERC777TokensRecipient {
    function tokensReceived(
        address operator,
        address from,
        address to,
        uint256 amount,
        bytes calldata data,
        bytes calldata operatorData
    ) external;
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @notice More details at https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/introspection/IERC165.sol
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
contract ISignatureValidatorConstants {
    // bytes4(keccak256("isValidSignature(bytes,bytes)")
    bytes4 internal constant EIP1271_MAGIC_VALUE = 0x20c13b0b;
}
abstract contract ISignatureValidator is ISignatureValidatorConstants {
    /**
     * @dev Should return whether the signature provided is valid for the provided data
     * @param _data Arbitrary length data signed on the behalf of address(this)
     * @param _signature Signature byte array associated with _data
     *
     * MUST return the bytes4 magic value 0x20c13b0b when function passes.
     * MUST NOT modify state (using STATICCALL for solc < 0.5, view modifier for solc > 0.5)
     * MUST allow external calls
     */
    function isValidSignature(bytes memory _data, bytes memory _signature) public view virtual returns (bytes4);
}