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// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

import { SplitFactoryV2 } from "../SplitFactoryV2.sol";
import { PullSplit } from "./PullSplit.sol";

/**
 * @title Pull split factory
 * @author Splits
 * @notice Minimal smart wallet clone-factory for pull flow splitters.
 */
contract PullSplitFactory is SplitFactoryV2 {
    /* -------------------------------------------------------------------------- */
    /*                                 CONSTRUCTOR                                */
    /* -------------------------------------------------------------------------- */

    constructor(address _splitsWarehouse) {
        SPLIT_WALLET_IMPLEMENTATION = address(new PullSplit(_splitsWarehouse));
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

import { Clone } from "../libraries/Clone.sol";
import { SplitV2Lib } from "../libraries/SplitV2.sol";

import { Nonces } from "../utils/Nonces.sol";
import { SplitWalletV2 } from "./SplitWalletV2.sol";

/**
 * @title SplitFactoryV2
 * @author Splits
 * @notice Minimal smart wallet clone-factory for v2 splitters.
 */
abstract contract SplitFactoryV2 is Nonces {
    /* -------------------------------------------------------------------------- */
    /*                                   EVENTS                                   */
    /* -------------------------------------------------------------------------- */

    event SplitCreated(address indexed split, SplitV2Lib.Split splitParams, address owner, address creator);

    /* -------------------------------------------------------------------------- */
    /*                                   STORAGE                                  */
    /* -------------------------------------------------------------------------- */

    /// @notice address of Split Wallet V2 implementation.
    address public immutable SPLIT_WALLET_IMPLEMENTATION;

    /* -------------------------------------------------------------------------- */
    /*                             EXTERNAL FUNCTIONS                             */
    /* -------------------------------------------------------------------------- */

    /**
     * @notice Create a new split using create2.
     * @param _splitParams Params to create split with.
     * @param _owner Owner of created split.
     * @param _creator Creator of created split.
     * @param _salt Salt for create2.
     */
    function createSplitDeterministic(
        SplitV2Lib.Split calldata _splitParams,
        address _owner,
        address _creator,
        bytes32 _salt
    )
        external
        returns (address split)
    {
        split = Clone.cloneDeterministic({
            _implementation: SPLIT_WALLET_IMPLEMENTATION,
            _salt: _getSalt({ _splitParams: _splitParams, _owner: _owner, _salt: _salt })
        });

        SplitWalletV2(split).initialize(_splitParams, _owner);

        emit SplitCreated({ split: split, splitParams: _splitParams, owner: _owner, creator: _creator });
    }

    /**
     * @notice Create a new split with params and owner.
     * @dev Uses a hash-based incrementing nonce over params and owner.
     * @param _splitParams Params to create split with.
     * @param _owner Owner of created split.
     * @param _creator Creator of created split.
     */
    function createSplit(
        SplitV2Lib.Split calldata _splitParams,
        address _owner,
        address _creator
    )
        external
        returns (address split)
    {
        bytes32 hash = keccak256(abi.encode(_splitParams, _owner));

        split = Clone.cloneDeterministic({
            _implementation: SPLIT_WALLET_IMPLEMENTATION,
            _salt: keccak256(bytes.concat(hash, abi.encode(useNonce(hash))))
        });

        SplitWalletV2(split).initialize(_splitParams, _owner);

        emit SplitCreated({ split: split, splitParams: _splitParams, owner: _owner, creator: _creator });
    }

    /**
     * @notice Predict the address of a new split based on split params, owner, and salt.
     * @param _splitParams Params to create split with
     * @param _owner Owner of created split
     * @param _salt Salt for create2
     */
    function predictDeterministicAddress(
        SplitV2Lib.Split calldata _splitParams,
        address _owner,
        bytes32 _salt
    )
        external
        view
        returns (address)
    {
        return _predictDeterministicAddress({ _splitParams: _splitParams, _owner: _owner, _salt: _salt });
    }

    /**
     * @notice Predict the address of a new split based on the nonce of the hash of the params and owner.
     * @param _splitParams Params to create split with.
     * @param _owner Owner of created split.
     */
    function predictDeterministicAddress(
        SplitV2Lib.Split calldata _splitParams,
        address _owner
    )
        external
        view
        returns (address)
    {
        bytes32 hash = keccak256(abi.encode(_splitParams, _owner));
        return Clone.predictDeterministicAddress({
            _implementation: SPLIT_WALLET_IMPLEMENTATION,
            _salt: keccak256(bytes.concat(hash, abi.encode(nonces(hash)))),
            _deployer: address(this)
        });
    }

    /**
     * @notice Predict the address of a new split and check if it is deployed.
     * @param _splitParams Params to create split with.
     * @param _owner Owner of created split.
     * @param _salt Salt for create2.
     */
    function isDeployed(
        SplitV2Lib.Split calldata _splitParams,
        address _owner,
        bytes32 _salt
    )
        external
        view
        returns (address split, bool exists)
    {
        split = _predictDeterministicAddress({ _splitParams: _splitParams, _owner: _owner, _salt: _salt });
        exists = split.code.length > 0;
    }

    /* -------------------------------------------------------------------------- */
    /*                         PRIVATE/INTERNAL FUNCTIONS                         */
    /* -------------------------------------------------------------------------- */

    function _getSalt(
        SplitV2Lib.Split calldata _splitParams,
        address _owner,
        bytes32 _salt
    )
        internal
        pure
        returns (bytes32)
    {
        return keccak256(bytes.concat(abi.encode(_splitParams, _owner), _salt));
    }

    function _predictDeterministicAddress(
        SplitV2Lib.Split calldata _splitParams,
        address _owner,
        bytes32 _salt
    )
        internal
        view
        returns (address)
    {
        return Clone.predictDeterministicAddress({
            _implementation: SPLIT_WALLET_IMPLEMENTATION,
            _salt: _getSalt({ _splitParams: _splitParams, _owner: _owner, _salt: _salt }),
            _deployer: address(this)
        });
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

import { Cast } from "../../libraries/Cast.sol";
import { SplitV2Lib } from "../../libraries/SplitV2.sol";
import { SplitWalletV2 } from "../SplitWalletV2.sol";

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

/**
 * @title Pull Split Wallet
 * @author Splits
 * @notice The implementation logic for a splitter that distributes using the splits warehouse.
 * @dev `SplitProxy` handles `receive()` itself to avoid the gas cost with `DELEGATECALL`.
 */
contract PullSplit is SplitWalletV2 {
    using SplitV2Lib for SplitV2Lib.Split;
    using SafeERC20 for IERC20;
    using Cast for address;

    /* -------------------------------------------------------------------------- */
    /*                          CONSTRUCTOR & INITIALIZER                         */
    /* -------------------------------------------------------------------------- */

    constructor(address _splitWarehouse) SplitWalletV2(_splitWarehouse) { }

    /* -------------------------------------------------------------------------- */
    /*                          PUBLIC/EXTERNAL FUNCTIONS                         */
    /* -------------------------------------------------------------------------- */

    /**
     * @notice Distributes the tokens in the split & Warehouse to the recipients through the warehouse.
     * @dev The split must be initialized and the hash of _split must match splitHash.
     * @param _split The split struct containing the split data that gets distributed.
     * @param _token The token to distribute.
     * @param _distributor The distributor of the split.
     */
    function distribute(
        SplitV2Lib.Split calldata _split,
        address _token,
        address _distributor
    )
        external
        override
        pausable
    {
        if (splitHash != _split.getHash()) revert InvalidSplit();

        (uint256 splitBalance, uint256 warehouseBalance) = getSplitBalance(_token);

        // @solidity memory-safe-assembly
        assembly {
            // splitBalance -= uint(splitBalance > 0);
            splitBalance := sub(splitBalance, iszero(iszero(splitBalance)))
            // warehouseBalance -= uint(warehouseBalance > 0);
            warehouseBalance := sub(warehouseBalance, iszero(iszero(warehouseBalance)))
        }

        if (splitBalance > 0) depositToWarehouse(_token, splitBalance);

        _distribute({
            _split: _split,
            _token: _token,
            _amount: warehouseBalance + splitBalance,
            _distributor: _distributor
        });
    }

    /**
     * @notice Distributes a specific amount of tokens in the split & Warehouse to the recipients through the warehouse.
     * @dev The split must be initialized and the hash of _split must match splitHash.
     * @dev Will revert if the amount of tokens to transfer or distribute doesn't exist.
     * @param _split The split struct containing the split data that gets distributed.
     * @param _token The token to distribute.
     * @param _distributeAmount The amount of tokens to distribute.
     * @param _performWarehouseTransfer if true, deposits all but 1 amount of tokens to the warehouse.
     * @param _distributor The distributor of the split.
     */
    function distribute(
        SplitV2Lib.Split calldata _split,
        address _token,
        uint256 _distributeAmount,
        bool _performWarehouseTransfer,
        address _distributor
    )
        external
        override
        pausable
    {
        if (splitHash != _split.getHash()) revert InvalidSplit();

        if (_performWarehouseTransfer) {
            uint256 amount =
                (_token == NATIVE_TOKEN ? address(this).balance : IERC20(_token).balanceOf(address(this))) - 1;
            depositToWarehouse(_token, amount);
        }

        _distribute({ _split: _split, _token: _token, _amount: _distributeAmount, _distributor: _distributor });
    }

    /**
     * @notice Deposits tokens to the warehouse.
     * @param _token The token to deposit.
     * @param _amount The amount of tokens to deposit
     */
    function depositToWarehouse(address _token, uint256 _amount) public {
        if (_token == NATIVE_TOKEN) {
            SPLITS_WAREHOUSE.deposit{ value: _amount }({ receiver: address(this), token: _token, amount: _amount });
        } else {
            try SPLITS_WAREHOUSE.deposit({ receiver: address(this), token: _token, amount: _amount }) { }
            catch {
                IERC20(_token).approve({ spender: address(SPLITS_WAREHOUSE), amount: type(uint256).max });
                SPLITS_WAREHOUSE.deposit({ receiver: address(this), token: _token, amount: _amount });
            }
        }
    }

    /* -------------------------------------------------------------------------- */
    /*                              INTERNAL/PRIVATE                              */
    /* -------------------------------------------------------------------------- */

    /// @dev Assumes the amount is already deposited to the warehouse.
    function _distribute(
        SplitV2Lib.Split calldata _split,
        address _token,
        uint256 _amount,
        address _distributor
    )
        internal
    {
        (uint256[] memory amounts, uint256 distibutorReward) = _split.getDistributions(_amount);

        SPLITS_WAREHOUSE.batchTransfer({ receivers: _split.recipients, token: _token, amounts: amounts });

        if (distibutorReward > 0) {
            SPLITS_WAREHOUSE.transfer({ receiver: _distributor, id: _token.toUint256(), amount: distibutorReward });
        }

        emit SplitDistributed({ token: _token, distributor: _distributor, amount: _amount });
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

/**
 * @title Modified minimal proxy
 * @author Splits
 * @author Solady (https://github.com/vectorized/solady/blob/main/src/utils/LibClone.sol)
 * @dev Modified minimal proxy includes a `receive()` method that emits the
 * `ReceiveETH(uint256)` event to skip `DELEGATECALL` when there is no calldata.
 * Enables us to accept hard gas-capped `sends` & `transfers` for maximum backwards
 * composability.
 */
// solhint-disable no-inline-assembly
library Clone {
    error DeploymentFailed();

    uint256 private constant FREE_PTR = 0x40;
    uint256 private constant ZERO_PTR = 0x60;

    /// @dev Deploys a modified minimal proxy of `implementation`
    function cloneDeterministic(address _implementation, bytes32 _salt) internal returns (address instance) {
        assembly ("memory-safe") {
            /**
             * --------------------------------------------------------------------------+
             * CREATION (9 bytes - 0x09)                                                 |
             * --------------------------------------------------------------------------|
             * Opcode     | Mnemonic          | Stack     | Memory                       |
             * --------------------------------------------------------------------------|
             * 60 runSize | PUSH1 runSize     | r         |                              |
             * 3d         | RETURNDATASIZE    | 0 r       |                              |
             * 81         | DUP2              | r 0 r     |                              |
             * 60 offset  | PUSH1 offset      | o r 0 r   |                              |
             * 3d         | RETURNDATASIZE    | 0 o r 0 r |                              |
             * 39         | CODECOPY          | 0 r       | [0..runSize): runtime code   |
             * f3         | RETURN            |           | [0..runSize): runtime code   |
             * --------------------------------------------------------------------------|
             * RUNTIME (89 bytes - 0x59)                                                 |
             * --------------------------------------------------------------------------|
             * Opcode  | Mnemonic       | Stack                  | Memory                |
             * --------------------------------------------------------------------------|
             *                                                                           |
             * 36      | CALLDATASIZE   | cds                    |                       |
             * 60 0x2c | PUSH1 0x2c     | 0x2c cds               |                       |
             * 57      | JUMPI          |                        |                       |
             * 34      | CALLVALUE      | cv                     |                       |
             * 3d      | RETURNDATASIZE | 0 cv                   |                       |
             * 52      | MSTORE         |                        | [0..0x20): callvalue  |
             * 7f sig  | PUSH32 0x9e..  | sig                    | [0..0x20): callvalue  |
             * 59      | MSIZE          | 0x20 sig               | [0..0x20): callvalue  |
             * 3d      | RETURNDATASIZE | 0 0x20 sig             | [0..0x20): callvalue  |
             * a1      | LOG1           |                        | [0..0x20): callvalue  |
             * 00      | STOP           |                        | [0..0x20): callvalue  |
             * 5b      | JUMPDEST       |                        |                       |
             *                                                                           |
             * ::: keep some values in stack ::::::::::::::::::::::::::::::::::::::::::: |
             * 3d      | RETURNDATASIZE | 0                      |                       |
             * 3d      | RETURNDATASIZE | 0 0                    |                       |
             * 3d      | RETURNDATASIZE | 0 0 0                  |                       |
             * 3d      | RETURNDATASIZE | 0 0 0 0                |                       |
             *                                                                           |
             * ::: copy calldata to memory ::::::::::::::::::::::::::::::::::::::::::::: |
             * 36      | CALLDATASIZE   | cds 0 0 0 0            |                       |
             * 3d      | RETURNDATASIZE | 0 cds 0 0 0 0          |                       |
             * 3d      | RETURNDATASIZE | 0 0 cds 0 0 0 0        |                       |
             * 37      | CALLDATACOPY   | 0 0 0 0                | [0..cds): calldata    |
             *                                                                           |
             * ::: delegate call to the implementation contract :::::::::::::::::::::::: |
             * 36      | CALLDATASIZE   | cds 0 0 0 0            | [0..cds): calldata    |
             * 3d      | RETURNDATASIZE | 0 cds 0 0 0 0          | [0..cds): calldata    |
             * 73 addr | PUSH20 addr    | addr 0 cds 0 0 0 0     | [0..cds): calldata    |
             * 5a      | GAS            | gas addr 0 cds 0 0 0 0 | [0..cds): calldata    |
             * f4      | DELEGATECALL   | success 0 0            | [0..cds): calldata    |
             *                                                                           |
             * ::: copy return data to memory :::::::::::::::::::::::::::::::::::::::::: |
             * 3d      | RETURNDATASIZE | rds success 0 0        | [0..cds): calldata    |
             * 3d      | RETURNDATASIZE | rds rds success 0 0    | [0..cds): calldata    |
             * 93      | SWAP4          | 0 rds success 0 rds    | [0..cds): calldata    |
             * 80      | DUP1           | 0 0 rds success 0 rds  | [0..cds): calldata    |
             * 3e      | RETURNDATACOPY | success 0 rds          | [0..rds): returndata  |
             *                                                                           |
             * 60 0x57 | PUSH1 0x57     | 0x57 success 0 rds     | [0..rds): returndata  |
             * 57      | JUMPI          | 0 rds                  | [0..rds): returndata  |
             *                                                                           |
             * ::: revert :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: |
             * fd      | REVERT         |                        | [0..rds): returndata  |
             *                                                                           |
             * ::: return :::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::: |
             * 5b      | JUMPDEST       | 0 rds                  | [0..rds): returndata  |
             * f3      | RETURN         |                        | [0..rds): returndata  |
             * --------------------------------------------------------------------------+
             * TOTAL INIT (98 bytes - 0x62)                                                 |
             * --------------------------------------------------------------------------|
             */

            // save free pointer
            let fp := mload(FREE_PTR)

            mstore(0x51, 0x5af43d3d93803e605757fd5bf3) // 13 bytes
            mstore(0x44, _implementation) // 20 bytes
            mstore(0x30, 0x593da1005b3d3d3d3d363d3d37363d73) // 16 bytes
            // `keccak256("ReceiveETH(uint256)")`
            mstore(0x20, 0x9e4ac34f21c619cefc926c8bd93b54bf5a39c7ab2127a895af1cc0691d7e3dff) // 32 bytes
            mstore(0x00, 0x60593d8160093d39f336602c57343d527f) // 17 bytes

            // total: 113 bytes = 0x71
            // offset: 15 bytes = 0x0f
            // data: 98 bytes = 0x62
            instance := create2(0, 0x0f, 0x71, _salt)

            // restore free pointer, zero slot
            mstore(FREE_PTR, fp)
            mstore(ZERO_PTR, 0)

            // If `instance` is zero, revert.
            if iszero(instance) {
                // Store the function selector of `DeploymentFailed()`.
                mstore(0x00, 0x30116425)
                // Revert with (offset, size).
                revert(0x1c, 0x04)
            }
        }
    }

    function initCodeHash(address _implementation) internal pure returns (bytes32 hash) {
        /// @solidity memory-safe-assembly
        assembly {
            // save free pointer
            let fp := mload(FREE_PTR)

            mstore(0x51, 0x5af43d3d93803e605757fd5bf3) // 13 bytes
            mstore(0x44, _implementation) // 20 bytes
            mstore(0x30, 0x593da1005b3d3d3d3d363d3d37363d73) // 16 bytes
            // `keccak256("ReceiveETH(uint256)")`
            mstore(0x20, 0x9e4ac34f21c619cefc926c8bd93b54bf5a39c7ab2127a895af1cc0691d7e3dff) // 32 bytes
            mstore(0x00, 0x60593d8160093d39f336602c57343d527f) // 17 bytes

            hash := keccak256(0x0f, 0x71)

            // restore free pointer, zero slot
            mstore(FREE_PTR, fp)
            mstore(ZERO_PTR, 0)
        }
    }

    function predictDeterministicAddress(
        address _implementation,
        bytes32 _salt,
        address _deployer
    )
        internal
        pure
        returns (address predicted)
    {
        bytes32 hash = initCodeHash(_implementation);
        predicted = predictDeterministicAddress({ _hash: hash, _salt: _salt, _deployer: _deployer });
    }

    function predictDeterministicAddress(
        bytes32 _hash,
        bytes32 _salt,
        address _deployer
    )
        internal
        pure
        returns (address predicted)
    {
        /// @solidity memory-safe-assembly
        assembly {
            // Compute and store the bytecode hash.
            mstore8(0x00, 0xff) // Write the prefix.
            mstore(0x35, _hash)
            mstore(0x01, shl(96, _deployer))
            mstore(0x15, _salt)
            predicted := keccak256(0x00, 0x55)
            mstore(0x35, 0) // Restore the overwritten part of the free memory pointer.
        }
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

library SplitV2Lib {
    /* -------------------------------------------------------------------------- */
    /*                                   ERRORS                                   */
    /* -------------------------------------------------------------------------- */

    error InvalidSplit_TotalAllocationMismatch();
    error InvalidSplit_LengthMismatch();

    /* -------------------------------------------------------------------------- */
    /*                                   STRUCTS                                  */
    /* -------------------------------------------------------------------------- */

    /**
     * @notice Split struct
     * @dev This struct is used to store the split information.
     * @dev There are no hard caps on the number of recipients/totalAllocation/allocation unit. Thus the chain and its
     * gas limits will dictate these hard caps. Please double check if the split you are creating can be distributed on
     * the chain.
     * @param recipients The recipients of the split.
     * @param allocations The allocations of the split.
     * @param totalAllocation The total allocation of the split.
     * @param distributionIncentive The incentive for distribution. Limits max incentive to 6.5%.
     */
    struct Split {
        address[] recipients;
        uint256[] allocations;
        uint256 totalAllocation;
        uint16 distributionIncentive;
    }

    /* -------------------------------------------------------------------------- */
    /*                                  CONSTANTS                                 */
    /* -------------------------------------------------------------------------- */

    uint256 internal constant PERCENTAGE_SCALE = 1e6;

    /* -------------------------------------------------------------------------- */
    /*                                  FUNCTIONS                                 */
    /* -------------------------------------------------------------------------- */

    function getHash(Split calldata _split) internal pure returns (bytes32) {
        return keccak256(abi.encode(_split));
    }

    function getHashMem(Split memory _split) internal pure returns (bytes32) {
        return keccak256(abi.encode(_split));
    }

    function validate(Split calldata _split) internal pure {
        uint256 numOfRecipients = _split.recipients.length;
        if (_split.allocations.length != numOfRecipients) {
            revert InvalidSplit_LengthMismatch();
        }

        uint256 totalAllocation;
        for (uint256 i; i < numOfRecipients; ++i) {
            totalAllocation += _split.allocations[i];
        }

        if (totalAllocation != _split.totalAllocation) revert InvalidSplit_TotalAllocationMismatch();
    }

    function getDistributions(
        Split calldata _split,
        uint256 _amount
    )
        internal
        pure
        returns (uint256[] memory amounts, uint256 distributorReward)
    {
        uint256 numOfRecipients = _split.recipients.length;
        amounts = new uint256[](numOfRecipients);

        distributorReward = calculateDistributorReward(_split, _amount);
        _amount -= distributorReward;

        for (uint256 i; i < numOfRecipients; ++i) {
            amounts[i] = calculateAllocatedAmount(_split, _amount, i);
        }
    }

    function calculateAllocatedAmount(
        Split calldata _split,
        uint256 _amount,
        uint256 _index
    )
        internal
        pure
        returns (uint256 allocatedAmount)
    {
        allocatedAmount = _amount * _split.allocations[_index] / _split.totalAllocation;
    }

    function calculateDistributorReward(
        Split calldata _split,
        uint256 _amount
    )
        internal
        pure
        returns (uint256 distributorReward)
    {
        distributorReward = _amount * _split.distributionIncentive / PERCENTAGE_SCALE;
    }

    // only used in tests
    function getDistributionsMem(
        Split memory _split,
        uint256 _amount
    )
        internal
        pure
        returns (uint256[] memory amounts, uint256 distributorReward)
    {
        uint256 numOfRecipients = _split.recipients.length;
        amounts = new uint256[](numOfRecipients);

        distributorReward = _amount * _split.distributionIncentive / PERCENTAGE_SCALE;
        _amount -= distributorReward;

        for (uint256 i; i < numOfRecipients; ++i) {
            amounts[i] = _amount * _split.allocations[i] / _split.totalAllocation;
        }
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

/**
 * @title Track hash Nonces
 * @dev Inspired by OpenZeppelin's Nonces.sol
 */
abstract contract Nonces {
    mapping(bytes32 hash => uint256) private _nonces;

    /**
     * @dev Returns the next unused nonce for a hash.
     */
    function nonces(bytes32 _hash) public view virtual returns (uint256) {
        return _nonces[_hash];
    }

    /**
     * @dev Consumes a nonce.
     *
     * Returns the current value and increments nonce.
     */
    function useNonce(bytes32 _hash) internal virtual returns (uint256) {
        // For each hash, the nonce has an initial value of 0, can only be incremented by one, and cannot be
        // decremented or reset. This guarantees that the nonce never overflows.
        unchecked {
            // It is important to do x++ and not ++x here.
            return _nonces[_hash]++;
        }
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

import { ISplitsWarehouse } from "../interfaces/ISplitsWarehouse.sol";

import { Cast } from "../libraries/Cast.sol";
import { SplitV2Lib } from "../libraries/SplitV2.sol";
import { ERC1271 } from "../utils/ERC1271.sol";
import { Wallet } from "../utils/Wallet.sol";

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/**
 * @title Split Wallet V2
 * @author Splits
 * @notice Base splitter contract.
 * @dev `SplitProxy` handles `receive()` itself to avoid the gas cost with `DELEGATECALL`.
 */
abstract contract SplitWalletV2 is Wallet, ERC1271 {
    using SplitV2Lib for SplitV2Lib.Split;
    using Cast for address;

    /* -------------------------------------------------------------------------- */
    /*                                   ERRORS                                   */
    /* -------------------------------------------------------------------------- */

    error UnauthorizedInitializer();
    error InvalidSplit();

    /* -------------------------------------------------------------------------- */
    /*                                   EVENTS                                   */
    /* -------------------------------------------------------------------------- */

    event SplitUpdated(SplitV2Lib.Split _split);
    event SplitDistributed(address indexed token, address indexed distributor, uint256 amount);

    /* -------------------------------------------------------------------------- */
    /*                            CONSTANTS/IMMUTABLES                            */
    /* -------------------------------------------------------------------------- */

    /// @notice address of Splits Warehouse
    ISplitsWarehouse public immutable SPLITS_WAREHOUSE;

    /// @notice address of Split Wallet V2 factory
    address public immutable FACTORY;

    /// @notice address of native token
    address public immutable NATIVE_TOKEN;

    /* -------------------------------------------------------------------------- */
    /*                                   STORAGE                                  */
    /* -------------------------------------------------------------------------- */

    /// @notice the split hash - Keccak256 hash of the split struct
    bytes32 public splitHash;

    /* -------------------------------------------------------------------------- */
    /*                          CONSTRUCTOR & INITIALIZER                         */
    /* -------------------------------------------------------------------------- */

    constructor(address _splitWarehouse) ERC1271("splitWallet", "2") {
        SPLITS_WAREHOUSE = ISplitsWarehouse(_splitWarehouse);
        NATIVE_TOKEN = SPLITS_WAREHOUSE.NATIVE_TOKEN();
        FACTORY = msg.sender;
    }

    /**
     * @notice Initializes the split wallet with a split and its corresponding data.
     * @dev Only the factory can call this function.
     * @param _split The split struct containing the split data that gets initialized.
     */
    function initialize(SplitV2Lib.Split calldata _split, address _owner) external {
        if (msg.sender != FACTORY) revert UnauthorizedInitializer();

        _split.validate();

        splitHash = _split.getHash();

        Wallet.__initWallet(_owner);
    }

    /* -------------------------------------------------------------------------- */
    /*                          PUBLIC/EXTERNAL FUNCTIONS                         */
    /* -------------------------------------------------------------------------- */

    function distribute(SplitV2Lib.Split calldata _split, address _token, address _distributor) external virtual;

    function distribute(
        SplitV2Lib.Split calldata _split,
        address _token,
        uint256 _distributeAmount,
        bool _performWarehouseTransfer,
        address _distributor
    )
        external
        virtual;

    /**
     * @notice Gets the total token balance of the split wallet and the warehouse.
     * @param _token The token to get the balance of.
     * @return splitBalance The token balance in the split wallet.
     * @return warehouseBalance The token balance in the warehouse of the split wallet.
     */
    function getSplitBalance(address _token) public view returns (uint256 splitBalance, uint256 warehouseBalance) {
        splitBalance = (_token == NATIVE_TOKEN) ? address(this).balance : IERC20(_token).balanceOf(address(this));

        warehouseBalance = SPLITS_WAREHOUSE.balanceOf(address(this), _token.toUint256());
    }

    /**
     * @notice Updates the split.
     * @dev Only the owner can call this function.
     * @param _split The new split struct.
     */
    function updateSplit(SplitV2Lib.Split calldata _split) external onlyOwner {
        // throws error if invalid
        _split.validate();

        splitHash = _split.getHash();

        emit SplitUpdated(_split);
    }

    /* -------------------------------------------------------------------------- */
    /*                             INTERNAL FUNCTIONS                             */
    /* -------------------------------------------------------------------------- */

    function getSigner() internal view override returns (address) {
        return owner;
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

library Cast {
    error Overflow();

    function toAddress(uint256 _value) internal pure returns (address) {
        return address(toUint160(_value));
    }

    function toUint256(address _value) internal pure returns (uint256) {
        return uint256(uint160(_value));
    }

    function toUint160(uint256 _x) internal pure returns (uint160 y) {
        if (_x >> 160 != 0) revert Overflow();
        // solhint-disable-next-line no-inline-assembly
        assembly {
            y := _x
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

import { IERC6909 } from "./IERC6909.sol";

interface ISplitsWarehouse is IERC6909 {
    function NATIVE_TOKEN() external view returns (address);

    function deposit(address receiver, address token, uint256 amount) external payable;

    function batchDeposit(address[] calldata receivers, address token, uint256[] calldata amounts) external;

    function batchTransfer(address[] calldata receivers, address token, uint256[] calldata amounts) external;

    function withdraw(address owner, address token) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

import { EIP712 } from "@openzeppelin/contracts/utils/cryptography/EIP712.sol";
import { SignatureChecker } from "@openzeppelin/contracts/utils/cryptography/SignatureChecker.sol";

/**
 * @notice ERC-1271 with guards for same signer being used on multiple splits
 * @author Splits
 * Based on coinbase (https://github.com/coinbase/smart-wallet/blob/main/src/ERC1271.sol)
 */
abstract contract ERC1271 is EIP712 {
    /* -------------------------------------------------------------------------- */
    /*                                  CONSTANTS                                 */
    /* -------------------------------------------------------------------------- */
    /**
     * @dev We use `bytes32 hash` rather than `bytes message`
     * In the EIP-712 context, `bytes message` would be useful for showing users a full message
     * they are signing in some wallet preview. But in this case, to prevent replay
     * across accounts, we are always dealing with nested messages, and so the
     * input should be a EIP-191 or EIP-712 output hash.
     * E.g. The input hash would be result of
     *
     *  keccak256("\x19\x01" || someDomainSeparator || hashStruct(someStruct))
     *
     *  OR
     *
     * keccak256("\x19Ethereum Signed Message:\n" || len(someMessage) || someMessage),
     */
    bytes32 private constant _MESSAGE_TYPEHASH = keccak256("SplitWalletMessage(bytes32 hash)");

    /* -------------------------------------------------------------------------- */
    /*                                 CONSTRUCTOR                                */
    /* -------------------------------------------------------------------------- */

    /**
     * @dev Initializes the {EIP712} domain separator.
     */
    constructor(string memory _name, string memory _version) EIP712(_name, _version) { }

    /* -------------------------------------------------------------------------- */
    /*                              PUBLIC FUNCTIONS                              */
    /* -------------------------------------------------------------------------- */

    /**
     * @notice Validates the signature with ERC1271 return, so that this account can also be used as a signer.
     */
    function isValidSignature(bytes32 hash, bytes calldata signature) public view virtual returns (bytes4 result) {
        if (
            SignatureChecker.isValidSignatureNow({
                signer: getSigner(),
                hash: replaySafeHash(hash),
                signature: signature
            })
        ) {
            // bytes4(keccak256("isValidSignature(bytes32,bytes)"))
            return 0x1626ba7e;
        }

        return 0xffffffff;
    }

    /**
     * @dev Returns an EIP-712-compliant hash of `hash`,
     * where the domainSeparator includes address(this) and block.chainId
     * to protect against the same signature being used for many accounts.
     * @return
     *  keccak256(\x19\x01 || this.domainSeparator ||
     *      hashStruct(SplitWalletMessage({
     *          hash: `hash`
     *      }))
     *  )
     */
    function replaySafeHash(bytes32 hash) public view virtual returns (bytes32) {
        return _hashTypedDataV4(keccak256(abi.encode(_MESSAGE_TYPEHASH, hash)));
    }

    /// @dev returns the ERC1271 signer.
    function getSigner() internal view virtual returns (address);
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

import { Pausable } from "./Pausable.sol";

import { ERC1155Holder } from "@openzeppelin/contracts/token/ERC1155/utils/ERC1155Holder.sol";
import { ERC721Holder } from "@openzeppelin/contracts/token/ERC721/utils/ERC721Holder.sol";

/**
 * @title Wallet Implementation
 * @author Splits
 * @notice Minimal smart wallet clone-implementation.
 */
abstract contract Wallet is Pausable, ERC721Holder, ERC1155Holder {
    /* -------------------------------------------------------------------------- */
    /*                                   ERRORS                                   */
    /* -------------------------------------------------------------------------- */

    error InvalidCalldataForEOA(Call call);

    /* -------------------------------------------------------------------------- */
    /*                                   STRUCTS                                  */
    /* -------------------------------------------------------------------------- */

    struct Call {
        address to;
        uint256 value;
        bytes data;
    }

    /* -------------------------------------------------------------------------- */
    /*                                   EVENTS                                   */
    /* -------------------------------------------------------------------------- */

    event ExecCalls(Call[] calls);

    /* -------------------------------------------------------------------------- */
    /*                          CONSTRUCTOR & INITIALIZER                         */
    /* -------------------------------------------------------------------------- */

    function __initWallet(address _owner) internal {
        __initPausable(_owner, false);
    }

    /* -------------------------------------------------------------------------- */
    /*                                  FUNCTONS                                  */
    /* -------------------------------------------------------------------------- */

    /**
     * @notice Execute a batch of calls.
     * @dev The calls are executed in order, reverting if any of them fails. Can
     * only be called by the owner.
     * @param _calls The calls to execute
     */
    function execCalls(Call[] calldata _calls)
        external
        payable
        returns (uint256 blockNumber, bytes[] memory returnData)
    {
        address caller = msg.sender;
        blockNumber = block.number;
        uint256 length = _calls.length;
        returnData = new bytes[](length);

        bool success;
        for (uint256 i; i < length; ++i) {
            // prevent user from executing calls after transferring ownership.
            if (caller != owner) revert Unauthorized();

            Call calldata calli = _calls[i];

            if (calli.to.code.length == 0) {
                // When the call is to an EOA, the calldata must be empty.
                if (calli.data.length > 0) revert InvalidCalldataForEOA({ call: calli });
            }

            (success, returnData[i]) = calli.to.call{ value: calli.value }(calli.data);

            // solhint-disable-next-line
            require(success, string(returnData[i]));
        }

        emit ExecCalls({ calls: _calls });
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [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://consensys.net/diligence/blog/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/v0.8.0/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: GPL-3.0-or-later
pragma solidity ^0.8.23;

import { IERC165 } from "./IERC165.sol";

/// @title ERC6909 Core Interface
/// @author jtriley.eth
interface IERC6909 is IERC165 {
    /// @notice The event emitted when a transfer occurs.
    /// @param caller The caller of the transfer.
    /// @param sender The address of the sender.
    /// @param receiver The address of the receiver.
    /// @param id The id of the token.
    /// @param amount The amount of the token.
    event Transfer(
        address caller, address indexed sender, address indexed receiver, uint256 indexed id, uint256 amount
    );

    /// @notice The event emitted when an operator is set.
    /// @param owner The address of the owner.
    /// @param spender The address of the spender.
    /// @param approved The approval status.
    event OperatorSet(address indexed owner, address indexed spender, bool approved);

    /// @notice The event emitted when an approval occurs.
    /// @param owner The address of the owner.
    /// @param spender The address of the spender.
    /// @param id The id of the token.
    /// @param amount The amount of the token.
    event Approval(address indexed owner, address indexed spender, uint256 indexed id, uint256 amount);

    /// @notice Owner balance of an id.
    /// @param owner The address of the owner.
    /// @param id The id of the token.
    /// @return amount The balance of the token.
    function balanceOf(address owner, uint256 id) external view returns (uint256 amount);

    /// @notice Spender allowance of an id.
    /// @param owner The address of the owner.
    /// @param spender The address of the spender.
    /// @param id The id of the token.
    /// @return amount The allowance of the token.
    function allowance(address owner, address spender, uint256 id) external view returns (uint256 amount);

    /// @notice Checks if a spender is approved by an owner as an operator
    /// @param owner The address of the owner.
    /// @param spender The address of the spender.
    /// @return approved The approval status.
    function isOperator(address owner, address spender) external view returns (bool approved);

    /// @notice Transfers an amount of an id from the caller to a receiver.
    /// @param receiver The address of the receiver.
    /// @param id The id of the token.
    /// @param amount The amount of the token.
    function transfer(address receiver, uint256 id, uint256 amount) external returns (bool);

    /// @notice Transfers an amount of an id from a sender to a receiver.
    /// @param sender The address of the sender.
    /// @param receiver The address of the receiver.
    /// @param id The id of the token.
    /// @param amount The amount of the token.
    function transferFrom(address sender, address receiver, uint256 id, uint256 amount) external returns (bool);

    /// @notice Approves an amount of an id to a spender.
    /// @param spender The address of the spender.
    /// @param id The id of the token.
    /// @param amount The amount of the token.
    function approve(address spender, uint256 id, uint256 amount) external returns (bool);

    /// @notice Sets or removes a spender as an operator for the caller.
    /// @param spender The address of the spender.
    /// @param approved The approval status.
    function setOperator(address spender, bool approved) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/EIP712.sol)

pragma solidity ^0.8.8;

import "./ECDSA.sol";
import "../ShortStrings.sol";
import "../../interfaces/IERC5267.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain
 * separator of the implementation contract. This will cause the `_domainSeparatorV4` function to always rebuild the
 * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.
 *
 * _Available since v3.4._
 *
 * @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
 */
abstract contract EIP712 is IERC5267 {
    using ShortStrings for *;

    bytes32 private constant _TYPE_HASH =
        keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _cachedDomainSeparator;
    uint256 private immutable _cachedChainId;
    address private immutable _cachedThis;

    bytes32 private immutable _hashedName;
    bytes32 private immutable _hashedVersion;

    ShortString private immutable _name;
    ShortString private immutable _version;
    string private _nameFallback;
    string private _versionFallback;

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) {
        _name = name.toShortStringWithFallback(_nameFallback);
        _version = version.toShortStringWithFallback(_versionFallback);
        _hashedName = keccak256(bytes(name));
        _hashedVersion = keccak256(bytes(version));

        _cachedChainId = block.chainid;
        _cachedDomainSeparator = _buildDomainSeparator();
        _cachedThis = address(this);
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (address(this) == _cachedThis && block.chainid == _cachedChainId) {
            return _cachedDomainSeparator;
        } else {
            return _buildDomainSeparator();
        }
    }

    function _buildDomainSeparator() private view returns (bytes32) {
        return keccak256(abi.encode(_TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
    }

    /**
     * @dev See {EIP-5267}.
     *
     * _Available since v4.9._
     */
    function eip712Domain()
        public
        view
        virtual
        override
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        )
    {
        return (
            hex"0f", // 01111
            _name.toStringWithFallback(_nameFallback),
            _version.toStringWithFallback(_versionFallback),
            block.chainid,
            address(this),
            bytes32(0),
            new uint256[](0)
        );
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/SignatureChecker.sol)

pragma solidity ^0.8.0;

import "./ECDSA.sol";
import "../../interfaces/IERC1271.sol";

/**
 * @dev Signature verification helper that can be used instead of `ECDSA.recover` to seamlessly support both ECDSA
 * signatures from externally owned accounts (EOAs) as well as ERC1271 signatures from smart contract wallets like
 * Argent and Gnosis Safe.
 *
 * _Available since v4.1._
 */
library SignatureChecker {
    /**
     * @dev Checks if a signature is valid for a given signer and data hash. If the signer is a smart contract, the
     * signature is validated against that smart contract using ERC1271, otherwise it's validated using `ECDSA.recover`.
     *
     * NOTE: Unlike ECDSA signatures, contract signatures are revocable, and the outcome of this function can thus
     * change through time. It could return true at block N and false at block N+1 (or the opposite).
     */
    function isValidSignatureNow(address signer, bytes32 hash, bytes memory signature) internal view returns (bool) {
        (address recovered, ECDSA.RecoverError error) = ECDSA.tryRecover(hash, signature);
        return
            (error == ECDSA.RecoverError.NoError && recovered == signer) ||
            isValidERC1271SignatureNow(signer, hash, signature);
    }

    /**
     * @dev Checks if a signature is valid for a given signer and data hash. The signature is validated
     * against the signer smart contract using ERC1271.
     *
     * NOTE: Unlike ECDSA signatures, contract signatures are revocable, and the outcome of this function can thus
     * change through time. It could return true at block N and false at block N+1 (or the opposite).
     */
    function isValidERC1271SignatureNow(
        address signer,
        bytes32 hash,
        bytes memory signature
    ) internal view returns (bool) {
        (bool success, bytes memory result) = signer.staticcall(
            abi.encodeWithSelector(IERC1271.isValidSignature.selector, hash, signature)
        );
        return (success &&
            result.length >= 32 &&
            abi.decode(result, (bytes32)) == bytes32(IERC1271.isValidSignature.selector));
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

import { Ownable } from "./Ownable.sol";

/**
 * @title Pausable Implementation
 * @author Splits
 * @notice Pausable clone-implementation
 */
abstract contract Pausable is Ownable {
    /* -------------------------------------------------------------------------- */
    /*                                   ERRORS                                   */
    /* -------------------------------------------------------------------------- */

    error Paused();

    /* -------------------------------------------------------------------------- */
    /*                                   EVENTS                                   */
    /* -------------------------------------------------------------------------- */

    event SetPaused(bool paused);

    /* -------------------------------------------------------------------------- */
    /*                                   STORAGE                                  */
    /* -------------------------------------------------------------------------- */

    bool public paused;

    /* -------------------------------------------------------------------------- */
    /*                          CONSTRUCTOR & INITIALIZER                         */
    /* -------------------------------------------------------------------------- */

    function __initPausable(address _owner, bool _paused) internal virtual {
        __initOwnable(_owner);
        paused = _paused;
    }

    /* -------------------------------------------------------------------------- */
    /*                                  MODIFIERS                                 */
    /* -------------------------------------------------------------------------- */

    modifier pausable() virtual {
        address owner_ = owner;
        if (paused) {
            // solhint-disable-next-line avoid-tx-origin
            if (msg.sender != owner_ && tx.origin != owner_ && msg.sender != address(this)) {
                revert Paused();
            }
        }
        _;
    }

    /* -------------------------------------------------------------------------- */
    /*                          PUBLIC/EXTERNAL FUNCTIONS                         */
    /* -------------------------------------------------------------------------- */

    function setPaused(bool _paused) public virtual onlyOwner {
        paused = _paused;
        emit SetPaused({ paused: _paused });
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/utils/ERC1155Holder.sol)

pragma solidity ^0.8.0;

import "./ERC1155Receiver.sol";

/**
 * Simple implementation of `ERC1155Receiver` that will allow a contract to hold ERC1155 tokens.
 *
 * IMPORTANT: When inheriting this contract, you must include a way to use the received tokens, otherwise they will be
 * stuck.
 *
 * @dev _Available since v3.1._
 */
contract ERC1155Holder is ERC1155Receiver {
    function onERC1155Received(
        address,
        address,
        uint256,
        uint256,
        bytes memory
    ) public virtual override returns (bytes4) {
        return this.onERC1155Received.selector;
    }

    function onERC1155BatchReceived(
        address,
        address,
        uint256[] memory,
        uint256[] memory,
        bytes memory
    ) public virtual override returns (bytes4) {
        return this.onERC1155BatchReceived.selector;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/utils/ERC721Holder.sol)

pragma solidity ^0.8.0;

import "../IERC721Receiver.sol";

/**
 * @dev Implementation of the {IERC721Receiver} interface.
 *
 * Accepts all token transfers.
 * Make sure the contract is able to use its token with {IERC721-safeTransferFrom}, {IERC721-approve} or {IERC721-setApprovalForAll}.
 */
contract ERC721Holder is IERC721Receiver {
    /**
     * @dev See {IERC721Receiver-onERC721Received}.
     *
     * Always returns `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(address, address, uint256, bytes memory) public virtual override returns (bytes4) {
        return this.onERC721Received.selector;
    }
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

interface IERC165 {
    /// @notice Checks if a contract implements an interface.
    /// @param interfaceId The interface identifier, as specified in ERC-165.
    /// @return supported True if the contract implements `interfaceId` and
    /// `interfaceId` is not 0xffffffff, false otherwise.
    function supportsInterface(bytes4 interfaceId) external view returns (bool supported);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32")
            mstore(0x1c, hash)
            message := keccak256(0x00, 0x3c)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, "\x19\x01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            data := keccak256(ptr, 0x42)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Data with intended validator, created from a
     * `validator` and `data` according to the version 0 of EIP-191.
     *
     * See {recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x00", validator, data));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/ShortStrings.sol)

pragma solidity ^0.8.8;

import "./StorageSlot.sol";

// | string  | 0xAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA   |
// | length  | 0x                                                              BB |
type ShortString is bytes32;

/**
 * @dev This library provides functions to convert short memory strings
 * into a `ShortString` type that can be used as an immutable variable.
 *
 * Strings of arbitrary length can be optimized using this library if
 * they are short enough (up to 31 bytes) by packing them with their
 * length (1 byte) in a single EVM word (32 bytes). Additionally, a
 * fallback mechanism can be used for every other case.
 *
 * Usage example:
 *
 * ```solidity
 * contract Named {
 *     using ShortStrings for *;
 *
 *     ShortString private immutable _name;
 *     string private _nameFallback;
 *
 *     constructor(string memory contractName) {
 *         _name = contractName.toShortStringWithFallback(_nameFallback);
 *     }
 *
 *     function name() external view returns (string memory) {
 *         return _name.toStringWithFallback(_nameFallback);
 *     }
 * }
 * ```
 */
library ShortStrings {
    // Used as an identifier for strings longer than 31 bytes.
    bytes32 private constant _FALLBACK_SENTINEL = 0x00000000000000000000000000000000000000000000000000000000000000FF;

    error StringTooLong(string str);
    error InvalidShortString();

    /**
     * @dev Encode a string of at most 31 chars into a `ShortString`.
     *
     * This will trigger a `StringTooLong` error is the input string is too long.
     */
    function toShortString(string memory str) internal pure returns (ShortString) {
        bytes memory bstr = bytes(str);
        if (bstr.length > 31) {
            revert StringTooLong(str);
        }
        return ShortString.wrap(bytes32(uint256(bytes32(bstr)) | bstr.length));
    }

    /**
     * @dev Decode a `ShortString` back to a "normal" string.
     */
    function toString(ShortString sstr) internal pure returns (string memory) {
        uint256 len = byteLength(sstr);
        // using `new string(len)` would work locally but is not memory safe.
        string memory str = new string(32);
        /// @solidity memory-safe-assembly
        assembly {
            mstore(str, len)
            mstore(add(str, 0x20), sstr)
        }
        return str;
    }

    /**
     * @dev Return the length of a `ShortString`.
     */
    function byteLength(ShortString sstr) internal pure returns (uint256) {
        uint256 result = uint256(ShortString.unwrap(sstr)) & 0xFF;
        if (result > 31) {
            revert InvalidShortString();
        }
        return result;
    }

    /**
     * @dev Encode a string into a `ShortString`, or write it to storage if it is too long.
     */
    function toShortStringWithFallback(string memory value, string storage store) internal returns (ShortString) {
        if (bytes(value).length < 32) {
            return toShortString(value);
        } else {
            StorageSlot.getStringSlot(store).value = value;
            return ShortString.wrap(_FALLBACK_SENTINEL);
        }
    }

    /**
     * @dev Decode a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     */
    function toStringWithFallback(ShortString value, string storage store) internal pure returns (string memory) {
        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
            return toString(value);
        } else {
            return store;
        }
    }

    /**
     * @dev Return the length of a string that was encoded to `ShortString` or written to storage using {setWithFallback}.
     *
     * WARNING: This will return the "byte length" of the string. This may not reflect the actual length in terms of
     * actual characters as the UTF-8 encoding of a single character can span over multiple bytes.
     */
    function byteLengthWithFallback(ShortString value, string storage store) internal view returns (uint256) {
        if (ShortString.unwrap(value) != _FALLBACK_SENTINEL) {
            return byteLength(value);
        } else {
            return bytes(store).length;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5267.sol)

pragma solidity ^0.8.0;

interface IERC5267 {
    /**
     * @dev MAY be emitted to signal that the domain could have changed.
     */
    event EIP712DomainChanged();

    /**
     * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712
     * signature.
     */
    function eip712Domain()
        external
        view
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        );
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC1271 standard signature validation method for
 * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].
 *
 * _Available since v4.1._
 */
interface IERC1271 {
    /**
     * @dev Should return whether the signature provided is valid for the provided data
     * @param hash      Hash of the data to be signed
     * @param signature Signature byte array associated with _data
     */
    function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.23;

/// @title Ownable Implementation
/// @author Splits
/// @notice Ownable clone-implementation
abstract contract Ownable {
    /* -------------------------------------------------------------------------- */
    /*                                   ERRORS                                   */
    /* -------------------------------------------------------------------------- */

    error Unauthorized();

    /* -------------------------------------------------------------------------- */
    /*                                   EVENTS                                   */
    /* -------------------------------------------------------------------------- */

    event OwnershipTransferred(address indexed oldOwner, address indexed newOwner);

    /* -------------------------------------------------------------------------- */
    /*                                   STORAGE                                  */
    /* -------------------------------------------------------------------------- */

    address public owner;

    /* -------------------------------------------------------------------------- */
    /*                          CONSTRUCTOR & INITIALIZER                         */
    /* -------------------------------------------------------------------------- */

    function __initOwnable(address _owner) internal virtual {
        emit OwnershipTransferred({ oldOwner: address(0), newOwner: _owner });
        owner = _owner;
    }

    /* -------------------------------------------------------------------------- */
    /*                                  MODIFIERS                                 */
    /* -------------------------------------------------------------------------- */

    modifier onlyOwner() virtual {
        if (msg.sender != owner && msg.sender != address(this)) revert Unauthorized();
        _;
    }

    /* -------------------------------------------------------------------------- */
    /*                                  FUNCTIONS                                 */
    /* -------------------------------------------------------------------------- */

    function transferOwnership(address _owner) public virtual onlyOwner {
        emit OwnershipTransferred({ oldOwner: owner, newOwner: _owner });
        owner = _owner;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Receiver.sol)

pragma solidity ^0.8.0;

import "../IERC1155Receiver.sol";
import "../../../utils/introspection/ERC165.sol";

/**
 * @dev _Available since v3.1._
 */
abstract contract ERC1155Receiver is ERC165, IERC1155Receiver {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return interfaceId == type(IERC1155Receiver).interfaceId || super.supportsInterface(interfaceId);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

/**
 * @title ERC721 token receiver interface
 * @dev Interface for any contract that wants to support safeTransfers
 * from ERC721 asset contracts.
 */
interface IERC721Receiver {
    /**
     * @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
     * by `operator` from `from`, this function is called.
     *
     * It must return its Solidity selector to confirm the token transfer.
     * If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
     *
     * The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
     */
    function onERC721Received(
        address operator,
        address from,
        uint256 tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol)

pragma solidity ^0.8.0;

import "./math/Math.sol";
import "./math/SignedMath.sol";

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _SYMBOLS = "0123456789abcdef";
    uint8 private constant _ADDRESS_LENGTH = 20;

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        unchecked {
            uint256 length = Math.log10(value) + 1;
            string memory buffer = new string(length);
            uint256 ptr;
            /// @solidity memory-safe-assembly
            assembly {
                ptr := add(buffer, add(32, length))
            }
            while (true) {
                ptr--;
                /// @solidity memory-safe-assembly
                assembly {
                    mstore8(ptr, byte(mod(value, 10), _SYMBOLS))
                }
                value /= 10;
                if (value == 0) break;
            }
            return buffer;
        }
    }

    /**
     * @dev Converts a `int256` to its ASCII `string` decimal representation.
     */
    function toString(int256 value) internal pure returns (string memory) {
        return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value))));
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        unchecked {
            return toHexString(value, Math.log256(value) + 1);
        }
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
     */
    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
        bytes memory buffer = new bytes(2 * length + 2);
        buffer[0] = "0";
        buffer[1] = "x";
        for (uint256 i = 2 * length + 1; i > 1; --i) {
            buffer[i] = _SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }

    /**
     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.
     */
    function toHexString(address addr) internal pure returns (string memory) {
        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);
    }

    /**
     * @dev Returns true if the two strings are equal.
     */
    function equal(string memory a, string memory b) internal pure returns (bool) {
        return keccak256(bytes(a)) == keccak256(bytes(b));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

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:
 * ```solidity
 * 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`, `uint256`._
 * _Available since v4.9 for `string`, `bytes`._
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes 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
        }
    }

    /**
     * @dev Returns an `StringSlot` with member `value` located at `slot`.
     */
    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` with member `value` located at `slot`.
     */
    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev _Available since v3.1._
 */
interface IERC1155Receiver is IERC165 {
    /**
     * @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 v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.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 ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard signed math utilities missing in the Solidity language.
 */
library SignedMath {
    /**
     * @dev Returns the largest of two signed numbers.
     */
    function max(int256 a, int256 b) internal pure returns (int256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two signed numbers.
     */
    function min(int256 a, int256 b) internal pure returns (int256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two signed numbers without overflow.
     * The result is rounded towards zero.
     */
    function average(int256 a, int256 b) internal pure returns (int256) {
        // Formula from the book "Hacker's Delight"
        int256 x = (a & b) + ((a ^ b) >> 1);
        return x + (int256(uint256(x) >> 255) & (a ^ b));
    }

    /**
     * @dev Returns the absolute unsigned value of a signed value.
     */
    function abs(int256 n) internal pure returns (uint256) {
        unchecked {
            // must be unchecked in order to support `n = type(int256).min`
            return uint256(n >= 0 ? n : -n);
        }
    }
}

// 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);
}

{
  "remappings": [
    "@prb/test/=node_modules/@prb/test/src/",
    "forge-std/=node_modules/forge-std/src/",
    "@openzeppelin/contracts/=node_modules/@openzeppelin/contracts/",
    "solady/=node_modules/solady/src/",
    "multicaller/=node_modules/multicaller/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 5000000
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "shanghai",
  "viaIR": true,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_splitsWarehouse","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"split","type":"address"},{"components":[{"internalType":"address[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"allocations","type":"uint256[]"},{"internalType":"uint256","name":"totalAllocation","type":"uint256"},{"internalType":"uint16","name":"distributionIncentive","type":"uint16"}],"indexed":false,"internalType":"struct SplitV2Lib.Split","name":"splitParams","type":"tuple"},{"indexed":false,"internalType":"address","name":"owner","type":"address"},{"indexed":false,"internalType":"address","name":"creator","type":"address"}],"name":"SplitCreated","type":"event"},{"inputs":[],"name":"SPLIT_WALLET_IMPLEMENTATION","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"allocations","type":"uint256[]"},{"internalType":"uint256","name":"totalAllocation","type":"uint256"},{"internalType":"uint16","name":"distributionIncentive","type":"uint16"}],"internalType":"struct SplitV2Lib.Split","name":"_splitParams","type":"tuple"},{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_creator","type":"address"}],"name":"createSplit","outputs":[{"internalType":"address","name":"split","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"allocations","type":"uint256[]"},{"internalType":"uint256","name":"totalAllocation","type":"uint256"},{"internalType":"uint16","name":"distributionIncentive","type":"uint16"}],"internalType":"struct SplitV2Lib.Split","name":"_splitParams","type":"tuple"},{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_creator","type":"address"},{"internalType":"bytes32","name":"_salt","type":"bytes32"}],"name":"createSplitDeterministic","outputs":[{"internalType":"address","name":"split","type":"address"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"address[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"allocations","type":"uint256[]"},{"internalType":"uint256","name":"totalAllocation","type":"uint256"},{"internalType":"uint16","name":"distributionIncentive","type":"uint16"}],"internalType":"struct SplitV2Lib.Split","name":"_splitParams","type":"tuple"},{"internalType":"address","name":"_owner","type":"address"},{"internalType":"bytes32","name":"_salt","type":"bytes32"}],"name":"isDeployed","outputs":[{"internalType":"address","name":"split","type":"address"},{"internalType":"bool","name":"exists","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"_hash","type":"bytes32"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"allocations","type":"uint256[]"},{"internalType":"uint256","name":"totalAllocation","type":"uint256"},{"internalType":"uint16","name":"distributionIncentive","type":"uint16"}],"internalType":"struct SplitV2Lib.Split","name":"_splitParams","type":"tuple"},{"internalType":"address","name":"_owner","type":"address"}],"name":"predictDeterministicAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"address[]","name":"recipients","type":"address[]"},{"internalType":"uint256[]","name":"allocations","type":"uint256[]"},{"internalType":"uint256","name":"totalAllocation","type":"uint256"},{"internalType":"uint16","name":"distributionIncentive","type":"uint16"}],"internalType":"struct SplitV2Lib.Split","name":"_splitParams","type":"tuple"},{"internalType":"address","name":"_owner","type":"address"},{"internalType":"bytes32","name":"_salt","type":"bytes32"}],"name":"predictDeterministicAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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0000000000000000000000008fb66f38cf86a3d5e8768f8f1754a24a6c661fb8

-----Decoded View---------------
Arg [0] : _splitsWarehouse (address): 0x8fb66F38cF86A3d5e8768f8F1754A24A6c661Fb8

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000008fb66f38cf86a3d5e8768f8f1754a24a6c661fb8