Contract Source Code (Solidity)

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Outline

•    - function _nonReentrantBefore()
•    - function _nonReentrantAfter()
•    - function _reentrancyGuardEntered()
•    - function _msgSender()
•    - function _msgData()
•    - function owner()
•    - function _checkOwner()
•    - function renounceOwnership()
•    - function transferOwnership(address ne ...
•    - function _transferOwnership(address n ...
• interface IERC165Upgradeable
•    - function supportsInterface(bytes4 int ...
• interface IERC721Upgradeable is IERC1 ...
•    - function balanceOf(address owner)
•    - function ownerOf(uint256 tokenId)
•    - function safeTransferFrom(
•    - function safeTransferFrom(
•    - function transferFrom(
•    - function approve(address to, uint256 ...
•    - function setApprovalForAll(address op ...
•    - function getApproved(uint256 tokenId)
•    - function isApprovedForAll(address own ...
• interface IERC721MetadataUpgradeable ...
•    - function name()
•    - function symbol()
•    - function tokenURI(uint256 tokenId)
• interface ITokenRecoverable
•    - function recoverERC20(
•    - function recoverERC721(
• interface IGuard
•    - function isAllowed(
• interface ITokenEnforceable is IToken ...
•    - function batcher()
•    - function isControllable()
•    - function mintGuard()
•    - function burnGuard()
•    - function transferGuard()
•    - function mintGuardLocked()
•    - function burnGuardLocked()
•    - function transferGuardLocked()
•    - function disableControl()
•    - function lockGuards(
•    - function updateBatcher(address implem ...
•    - function updateMintGuard(address impl ...
•    - function updateBurnGuard(address impl ...
•    - function updateTransferGuard(address ...
•    - function isAllowed(
•    - function owner()
•    - function transferOwnership(address ne ...
•    - function renounceOwnership()
• interface IERC1644
•    - function controllerRedeem(
•    - function controllerTransfer(
• interface IERC721UpgradeableFork is I ...
•    - function STARTING_TOKEN_ID()
•    - function OWNER_ID_STAGGER()
•    - function nextTokenId()
•    - function royaltyInfo(uint256 tokenId, ...
• interface IERC721CollectiveUnchained ...
•    - function __ERC721Collective_init(
•    - function totalSupply()
•    - function renderer()
•    - function rendererLocked()
•    - function updateRenderer(address imple ...
•    - function lockRenderer()
•    - function mintTo(address account)
•    - function bulkMintToOneAddress(address ...
•    - function bulkMintToNAddresses(address ...
•    - function redeem(uint256 tokenId)
•    - function setDefaultRoyalty(address re ...
•    - function setTokenRoyalty(
• interface IERC721Collective is
• interface IERC165
•    - function supportsInterface(bytes4 int ...
• library ERC165Checker
•    - function supportsERC165(address accou ...
•    - function supportsInterface(address ac ...
•    - function getSupportedInterfaces(
•    - function supportsAllInterfaces(
•    - function supportsERC165InterfaceUnche ...
•    - function _checkCollectiveInterface(ad ...
• interface IOwner
•    - function owner()
•    - function _onlyTokenOwner(address toke ...
• interface IERC20
•    - function totalSupply()
•    - function balanceOf(address account)
•    - function transfer(address to, uint256 ...
•    - function allowance(address owner, add ...
•    - function approve(address spender, uin ...
•    - function transferFrom(
• interface IERC721 is IERC165
•    - function balanceOf(address owner)
•    - function ownerOf(uint256 tokenId)
•    - function safeTransferFrom(
•    - function safeTransferFrom(
•    - function transferFrom(
•    - function approve(address to, uint256 ...
•    - function setApprovalForAll(address op ...
•    - function getApproved(uint256 tokenId)
•    - function isApprovedForAll(address own ...
• interface IERC20Permit
•    - function permit(
•    - function nonces(address owner)
•    - function DOMAIN_SEPARATOR()
• library Address
•    - function isContract(address account)
•    - function sendValue(address payable re ...
•    - function functionCall(address target, ...
• functionCallWithValue(
•    - function functionCall(
•    - function functionCallWithValue(
• functionCallWithValue(
•    - function functionCallWithValue(
•    - function functionStaticCall(address t ...
• functionStaticCall(
•    - function functionStaticCall(
•    - function functionDelegateCall(address ...
• functionDelegateCall(
•    - function functionDelegateCall(
•    - function verifyCallResultFromTarget(
•    - function verifyCallResult(
•    - function _revert(bytes memory returnd ...
• library SafeERC20
•    - function safeTransfer(
•    - function safeTransferFrom(
•    - function safeApprove(
•    - function safeIncreaseAllowance(
•    - function safeDecreaseAllowance(
•    - function safePermit(
•    - function _callOptionalReturn(IERC20 t ...
•    - function recoverERC20(
•    - function recoverERC721(
•  contract EthPriceMintModule is *
•    - function updateEthPrice(address colle ...
•    - function mint(address collective, uin ...

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/**
 *Submitted for verification at Etherscan.io on 2022-11-02
*/

// SPDX-License-Identifier: MIT

pragma solidity 0.8.15;

// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }
}

// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(
            newOwner != address(0),
            "Ownable: new owner is the zero address"
        );
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)

// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165Upgradeable {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721Upgradeable is IERC165Upgradeable {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(
        address indexed from,
        address indexed to,
        uint256 indexed tokenId
    );

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(
        address indexed owner,
        address indexed approved,
        uint256 indexed tokenId
    );

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(
        address indexed owner,
        address indexed operator,
        bool approved
    );

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId)
        external
        view
        returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator)
        external
        view
        returns (bool);
}

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the token collection symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

interface ITokenRecoverable {
    // Events for token recovery (ERC20) and (ERC721)
    event TokenRecoveredERC20(
        address indexed recipient,
        address indexed erc20,
        uint256 amount
    );
    event TokenRecoveredERC721(
        address indexed recipient,
        address indexed erc721,
        uint256 tokenId
    );

    /**
     * Allows the owner of an ERC20Club or ERC721Collective to return
     * any ERC20 tokens erroneously sent to the contract.
     *
     * Emits a `TokenRecoveredERC20` event.
     *
     * Requirements:
     * - The caller must be the (Club or Collective) token contract owner.
     * @param recipient Address that erroneously sent the ERC20 token(s)
     * @param erc20 Erroneously-sent ERC20 token to recover
     * @param amount Amount to recover
     */
    function recoverERC20(
        address recipient,
        address erc20,
        uint256 amount
    ) external;

    /**
     * Allows the owner of an ERC20Club or ERC721Collective to return
     * any ERC721 tokens erroneously sent to the contract.
     *
     * Emits a `TokenRecoveredERC721` event.
     *
     * Requirements:
     * - The caller must be the (Club or Collective) token contract owner.
     * @param recipient Address that erroneously sent the ERC721 token
     * @param erc721 Erroneously-sent ERC721 token to recover
     * @param tokenId The tokenId to recover
     */
    function recoverERC721(
        address recipient,
        address erc721,
        uint256 tokenId
    ) external;
}

/**
 * Interface for a Guard that governs whether a token can be minted, burned, or
 * transferred by a particular operator, from a particular sender (`from` is
 * address 0 iff the token is being minted), to a particular recipient (`to` is
 * address 0 iff the token is being burned).
 */
interface IGuard {
    /**
     * @return True iff the transaction is allowed
     * @param operator Transaction msg.sender
     * @param from Token sender
     * @param to Token recipient
     * @param value Amount (ERC20) or token ID (ERC721)
     */
    function isAllowed(
        address operator,
        address from,
        address to,
        uint256 value // amount (ERC20) or tokenId (ERC721)
    ) external view returns (bool);
}

interface ITokenEnforceable is ITokenRecoverable {
    event ControlDisabled(address indexed controller);
    event BatcherUpdated(address batcher);
    event GuardUpdated(GuardType indexed guard, address indexed implementation);
    event GuardLocked(
        bool mintGuardLocked,
        bool burnGuardLocked,
        bool transferGuardLocked
    );

    /**
     * @return The address of the transaction batcher used to batch calls over
     * onlyOwner functions.
     */
    function batcher() external view returns (address);

    /**
     * @return True iff the token contract owner is allowed to mint, burn, or
     * transfer on behalf of arbitrary addresses.
     */
    function isControllable() external view returns (bool);

    /**
     * @return The address of the Guard used to determine whether a mint is
     * allowed. The contract at this address is assumed to implement the IGuard
     * interface.
     */
    function mintGuard() external view returns (IGuard);

    /**
     * @return The address of the Guard used to determine whether a burn is
     * allowed. The contract at this address is assumed to implement the IGuard
     * interface.
     */
    function burnGuard() external view returns (IGuard);

    /**
     * @return The address of the Guard used to determine whether a transfer is
     * allowed. The contract at this address is assumed to implement the IGuard
     * interface.
     */
    function transferGuard() external view returns (IGuard);

    /**
     * @return True iff the mint Guard cannot be changed.
     */
    function mintGuardLocked() external view returns (bool);

    /**
     * @return True iff the burn Guard cannot be changed.
     */
    function burnGuardLocked() external view returns (bool);

    /**
     * @return True iff the transfer Guard cannot be changed.
     */
    function transferGuardLocked() external view returns (bool);

    /**
     * Irreversibly disables the token contract owner from minting, burning,
     * and transferring on behalf of arbitrary addresses.
     *
     * Emits a `ControlDisabled` event.
     *
     * Requirements:
     * - The caller must be the token contract owner or the batcher.
     */
    function disableControl() external;

    /**
     * Irreversibly prevents the token contract owner from changing the mint,
     * burn, and/or transfer Guards.
     *
     * If at least one guard was requested to be locked, emits a `GuardLocked`
     * event confirming whether each Guard is locked.
     *
     * Requirements:
     * - The caller must be the token contract owner or the batcher.
     * @param mintGuardLock If true, the mint Guard will be locked. If false,
     * does nothing to the mint Guard.
     * @param burnGuardLock If true, the mint Guard will be locked. If false,
     * does nothing to the burn Guard.
     * @param transferGuardLock If true, the mint Guard will be locked. If
     * false, does nothing to the transfer Guard.
     */
    function lockGuards(
        bool mintGuardLock,
        bool burnGuardLock,
        bool transferGuardLock
    ) external;

    /**
     * Update the address of the batcher for batching calls over
     * onlyOwner functions.
     *
     * Emits a `BatcherUpdated` event.
     *
     * Requirements:
     * - The caller must be the token contract owner or the batcher.
     * @param implementation Address of new batcher
     */
    function updateBatcher(address implementation) external;

    /**
     * Update the address of the Guard for minting. The contract at the
     * passed-in address is assumed to implement the IGuard interface.
     *
     * Emits a `GuardUpdated` event with `GuardType.Mint`.
     *
     * Requirements:
     * - The caller must be the token contract owner or the batcher.
     * - The mint Guard must not be locked.
     * @param implementation Address of new mint Guard
     */
    function updateMintGuard(address implementation) external;

    /**
     * Update the address of the Guard for burning. The contract at the
     * passed-in address is assumed to implement the IGuard interface.
     *
     * Emits a `GuardUpdated` event with `GuardType.Burn`.
     *
     * Requirements:
     * - The caller must be the token contract owner or the batcher.
     * - The burn Guard must not be locked.
     * @param implementation Address of new burn Guard
     */
    function updateBurnGuard(address implementation) external;

    /**
     * Update the address of the Guard for transferring. The contract at the
     * passed-in address is assumed to implement the IGuard interface.
     *
     * Emits a `GuardUpdated` event with `GuardType.Transfer`.
     *
     * Requirements:
     * - The caller must be the token contract owner or the batcher.
     * - The transfer Guard must not be locked.
     * @param implementation Address of transfer Guard
     */
    function updateTransferGuard(address implementation) external;

    /**
     * @return True iff a token can be minted, burned, or transferred by a
     * particular operator, from a particular sender (`from` is address 0 iff
     * the token is being minted), to a particular recipient (`to` is address 0
     * iff the token is being burned).
     * @param operator Transaction msg.sender
     * @param from Token sender
     * @param to Token recipient
     * @param value Amount (ERC20) or token ID (ERC721)
     */
    function isAllowed(
        address operator,
        address from,
        address to,
        uint256 value // amount (ERC20) or tokenId (ERC721)
    ) external view returns (bool);

    /**
     * @return owner The address of the token contract owner
     */
    function owner() external view returns (address);

    /**
     * Transfers ownership of the contract to a new account (`newOwner`)
     *
     * Emits an `OwnershipTransferred` event.
     *
     * Requirements:
     * - The caller must be the current owner.
     * @param newOwner Address that will become the owner
     */
    function transferOwnership(address newOwner) external;

    /**
     * Leaves the contract without an owner. After calling this function, it
     * will no longer be possible to call `onlyOwner` functions.
     *
     * Requirements:
     * - The caller must be the current owner.
     */
    function renounceOwnership() external;
}

enum GuardType {
    Mint,
    Burn,
    Transfer
}

/**
 * @title IERC1644 Controller Token Operation (part of the ERC1400 Security
 * Token Standards)
 *
 * See https://github.com/ethereum/EIPs/issues/1644. Data and operatorData
 * parameters were removed.
 */
interface IERC1644 {
    event ControllerRedemption(
        address account,
        address indexed from,
        uint256 value
    );

    event ControllerTransfer(
        address controller,
        address indexed from,
        address indexed to,
        uint256 value
    );

    /**
     * Burns `tokenId` without checking whether the caller owns or is approved
     * to spend the token.
     *
     * Emits a `Transfer` event with `address(0)` as `to` AND a
     * `ControllerRedemption` event.
     *
     * Requirements:
     * - The caller must be the token contract owner or the batcher.
     * - `isControllable` must be true.
     * @param account The account whose token will be burned.
     * @param value Amount (ERC20) or token ID (ERC721)
     */
    function controllerRedeem(
        address account,
        uint256 value // amount (ERC20) or tokenId (ERC721))
    ) external;

    /**
     * Transfers `tokenId` token from `from` to `to`, without checking whether
     * the caller owns or is approved to spend the token.
     *
     * Emits a `Transfer` event with `address(0)` as `to` AND a
     * `ControllerRedemption` event.
     *
     * Requirements:
     * - The caller must be the token contract owner or the batcher.
     * - `isControllable` must be true.
     * @param from The account sending the token.
     * @param to The account to receive the token.
     * @param value Amount (ERC20) or token ID (ERC721)
     */
    function controllerTransfer(
        address from,
        address to,
        uint256 value // amount (ERC20) or tokenId (ERC721)
    ) external;
}

/**
 * Interface for functions defined in ERC721UpgradeableFork
 */
interface IERC721UpgradeableFork is IERC721MetadataUpgradeable {
    /**
     * @return ID of the first token that will be minted.
     */
    function STARTING_TOKEN_ID() external view returns (uint256);

    /**
     * Max consecutive tokenIds of bulk-minted tokens whose owner can be stored
     * as address(0). This number is capped to reduce the cost of owner lookup.
     */
    function OWNER_ID_STAGGER() external view returns (uint256);

    /**
     * @return ID of the next token that will be minted. Existing tokens are
     * limited to IDs between `STARTING_TOKEN_ID` and `_nextTokenId` (including
     * `STARTING_TOKEN_ID` and excluding `_nextTokenId`, though not all of these
     * IDs may be in use if tokens have been burned).
     */
    function nextTokenId() external view returns (uint256);

    /**
     * @return receiver Address that should receive royalties from sales.
     * @return royaltyAmount How much royalty that should be sent to `receiver`,
     * denominated in the same unit of exchange as `salePrice`.
     * @param tokenId The token being sold.
     * @param salePrice The sale price of the token, denominated in any unit of
     * exchange. The royalty amount will be denominated and should be paid in
     * that same unit of exchange.
     */
    function royaltyInfo(uint256 tokenId, uint256 salePrice)
        external
        view
        returns (address receiver, uint256 royaltyAmount);
}

/**
 * Interface for only functions defined in ERC721Collective (excludes inherited
 * and overridden functions)
 */
interface IERC721CollectiveUnchained is IERC1644 {
    event RendererUpdated(address indexed implementation);
    event RendererLocked();

    /**
     * Initializes `ERC721Collective`.
     *
     * Emits an `Initialized` event.
     *
     * @param name_ Name of token
     * @param symbol_ Symbol of token
     * @param mintGuard_ Address of mint guard
     * @param burnGuard_ Address of burn guard
     * @param transferGuard_ Address of transfer guard
     * @param renderer_ Address of renderer
     */
    function __ERC721Collective_init(
        string memory name_,
        string memory symbol_,
        address mintGuard_,
        address burnGuard_,
        address transferGuard_,
        address renderer_
    ) external;

    /**
     * @return Number of currently-existing tokens (tokens that have been
     * minted and that have not been burned).
     */
    function totalSupply() external view returns (uint256);

    // name(), symbol(), and tokenURI() overriding ERC721UpgradeableFork
    // declared in IERC721Fork

    /**
     * @return The address of the token Renderer. The contract at this address
     * is assumed to implement the IRenderer interface.
     */
    function renderer() external view returns (address);

    /**
     * @return True iff the Renderer cannot be changed.
     */
    function rendererLocked() external view returns (bool);

    /**
     * Update the address of the token Renderer. The contract at the passed-in
     * address is assumed to implement the IRenderer interface.
     *
     * Emits a `RendererUpdated` event.
     *
     * Requirements:
     * - The caller must be the token contract owner or the batcher.
     * - Renderer must not be locked.
     * @param implementation Address of new Renderer
     */
    function updateRenderer(address implementation) external;

    /**
     * Irreversibly prevents the token contract owner from changing the token
     * Renderer.
     *
     * Emits a `RendererLocked` event.
     *
     * Requirements:
     * - The caller must be the token contract owner or the batcher.
     */
    function lockRenderer() external;

    // supportsInterface(bytes4 interfaceId) overriding ERC1644 declared in
    // IERC1644

    /**
     * @return True after successfully executing mint and transfer of
     * `nextTokenId` to `account`.
     *
     * Emits a `Transfer` event with `address(0)` as `from`.
     *
     * Requirements:
     * - `account` cannot be the zero address.
     * @param account The account to receive the minted token.
     */
    function mintTo(address account) external returns (bool);

    /**
     * @return True after successfully bulk minting and transferring the
     * `nextTokenId` through `nextTokenId + amount` tokens to `account`.
     *
     * Emits a `Transfer` event (with `address(0)` as `from`) for each token
     * that is minted.
     *
     * Requirements:
     * - `account` cannot be the zero address.
     * @param account The account to receive the minted tokens.
     * @param amount The number of tokens to be minted.
     */
    function bulkMintToOneAddress(address account, uint256 amount)
        external
        returns (bool);

    /**
     * @return True after successfully bulk minting and transferring one of the
     * `nextTokenId` through `nextTokenId + accounts.length` tokens to each of
     * the addresses in `accounts`.
     *
     * Emits a `Transfer` event (with `address(0)` as `from`) for each token
     * that is minted.
     *
     * Requirements:
     * - `accounts` cannot have length 0.
     * - None of the addresses in `accounts` can be the zero address.
     * @param accounts The accounts to receive the minted tokens.
     */
    function bulkMintToNAddresses(address[] calldata accounts)
        external
        returns (bool);

    /**
     * @return True after successfully burning `tokenId`.
     *
     * Emits a `Transfer` event with `address(0)` as `to`.
     *
     * Requirements:
     * - The caller must either own or be approved to spend the `tokenId` token.
     * - `tokenId` must exist.
     * @param tokenId The tokenId to be burned.
     */
    function redeem(uint256 tokenId) external returns (bool);

    // controllerRedeem() and controllerTransfer() declared in IERC1644

    /**
     * Sets the default royalty fee percentage for the ERC721.
     *
     * A custom royalty fee will override the default if set for specific tokenIds.
     *
     * Requirements:
     * - The caller must be the token contract owner.
     * - `isControllable` must be true.
     * @param receiver The account to receive the royalty.
     * @param feeNumerator The fee amount in basis points.
     */
    function setDefaultRoyalty(address receiver, uint96 feeNumerator) external;

    /**
     * Sets a custom royalty fee percentage for the specified `tokenId`.
     *
     * Requirements:
     * - The caller must be the token contract owner.
     * - `isControllable` must be true.
     * - `tokenId` must exist.
     * @param tokenId The tokenId to set a custom royalty for.
     * @param receiver The account to receive the royalty.
     * @param feeNumerator The fee amount in basis points.
     */
    function setTokenRoyalty(
        uint256 tokenId,
        address receiver,
        uint96 feeNumerator
    ) external;
}

/**
 * Interface for all functions in ERC721Collective, including inherited and
 * overridden functions
 */
interface IERC721Collective is
    ITokenEnforceable,
    IERC721UpgradeableFork,
    IERC721CollectiveUnchained
{

}

// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165Checker.sol)

// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

/**
 * @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);
}

/**
 * @dev Library used to query support of an interface declared via {IERC165}.
 *
 * Note that these functions return the actual result of the query: they do not
 * `revert` if an interface is not supported. It is up to the caller to decide
 * what to do in these cases.
 */
library ERC165Checker {
    // As per the EIP-165 spec, no interface should ever match 0xffffffff
    bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff;

    /**
     * @dev Returns true if `account` supports the {IERC165} interface.
     */
    function supportsERC165(address account) internal view returns (bool) {
        // Any contract that implements ERC165 must explicitly indicate support of
        // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid
        return
            supportsERC165InterfaceUnchecked(
                account,
                type(IERC165).interfaceId
            ) &&
            !supportsERC165InterfaceUnchecked(account, _INTERFACE_ID_INVALID);
    }

    /**
     * @dev Returns true if `account` supports the interface defined by
     * `interfaceId`. Support for {IERC165} itself is queried automatically.
     *
     * See {IERC165-supportsInterface}.
     */
    function supportsInterface(address account, bytes4 interfaceId)
        internal
        view
        returns (bool)
    {
        // query support of both ERC165 as per the spec and support of _interfaceId
        return
            supportsERC165(account) &&
            supportsERC165InterfaceUnchecked(account, interfaceId);
    }

    /**
     * @dev Returns a boolean array where each value corresponds to the
     * interfaces passed in and whether they're supported or not. This allows
     * you to batch check interfaces for a contract where your expectation
     * is that some interfaces may not be supported.
     *
     * See {IERC165-supportsInterface}.
     *
     * _Available since v3.4._
     */
    function getSupportedInterfaces(
        address account,
        bytes4[] memory interfaceIds
    ) internal view returns (bool[] memory) {
        // an array of booleans corresponding to interfaceIds and whether they're supported or not
        bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length);

        // query support of ERC165 itself
        if (supportsERC165(account)) {
            // query support of each interface in interfaceIds
            for (uint256 i = 0; i < interfaceIds.length; i++) {
                interfaceIdsSupported[i] = supportsERC165InterfaceUnchecked(
                    account,
                    interfaceIds[i]
                );
            }
        }

        return interfaceIdsSupported;
    }

    /**
     * @dev Returns true if `account` supports all the interfaces defined in
     * `interfaceIds`. Support for {IERC165} itself is queried automatically.
     *
     * Batch-querying can lead to gas savings by skipping repeated checks for
     * {IERC165} support.
     *
     * See {IERC165-supportsInterface}.
     */
    function supportsAllInterfaces(
        address account,
        bytes4[] memory interfaceIds
    ) internal view returns (bool) {
        // query support of ERC165 itself
        if (!supportsERC165(account)) {
            return false;
        }

        // query support of each interface in interfaceIds
        for (uint256 i = 0; i < interfaceIds.length; i++) {
            if (!supportsERC165InterfaceUnchecked(account, interfaceIds[i])) {
                return false;
            }
        }

        // all interfaces supported
        return true;
    }

    /**
     * @notice Query if a contract implements an interface, does not check ERC165 support
     * @param account The address of the contract to query for support of an interface
     * @param interfaceId The interface identifier, as specified in ERC-165
     * @return true if the contract at account indicates support of the interface with
     * identifier interfaceId, false otherwise
     * @dev Assumes that account contains a contract that supports ERC165, otherwise
     * the behavior of this method is undefined. This precondition can be checked
     * with {supportsERC165}.
     * Interface identification is specified in ERC-165.
     */
    function supportsERC165InterfaceUnchecked(
        address account,
        bytes4 interfaceId
    ) internal view returns (bool) {
        // prepare call
        bytes memory encodedParams = abi.encodeWithSelector(
            IERC165.supportsInterface.selector,
            interfaceId
        );

        // perform static call
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly {
            success := staticcall(
                30000,
                account,
                add(encodedParams, 0x20),
                mload(encodedParams),
                0x00,
                0x20
            )
            returnSize := returndatasize()
            returnValue := mload(0x00)
        }

        return success && returnSize >= 0x20 && returnValue > 0;
    }
}

/// Mixin can be used by any module using an address that should be an
/// ERC721Collective and needs to check if it indeed is one.
abstract contract ERC165CheckerERC721Collective {
    /// Only proceed if collective implements IERC721Collective interface
    /// @param collective collective to check
    modifier onlyCollectiveInterface(address collective) {
        _checkCollectiveInterface(collective);
        _;
    }

    function _checkCollectiveInterface(address collective) internal view {
        require(
            ERC165Checker.supportsInterface(
                collective,
                type(IERC721Collective).interfaceId
            ),
            "ERC165CheckerERC721Collective: collective address does not implement proper interface"
        );
    }
}

interface IOwner {
    function owner() external view returns (address);
}

/**
 * Utility for use by any module or guard that needs to check if an address is
 * the owner of the TokenEnforceable (ERC20Club or ERC721Collective)
 */

abstract contract TokenOwnerChecker {
    /**
     * Only proceed if msg.sender owns TokenEnforceable contract
     * @param token TokenEnforceable whose owner to check
     */
    modifier onlyTokenOwner(address token) {
        _onlyTokenOwner(token);
        _;
    }

    function _onlyTokenOwner(address token) internal view {
        require(
            msg.sender == IOwner(token).owner(),
            "TokenOwnerChecker: Caller not token owner"
        );
    }
}

// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

/**
 * @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);
}

// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(
        address indexed from,
        address indexed to,
        uint256 indexed tokenId
    );

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(
        address indexed owner,
        address indexed approved,
        uint256 indexed tokenId
    );

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(
        address indexed owner,
        address indexed operator,
        bool approved
    );

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId)
        external
        view
        returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator)
        external
        view
        returns (bool);
}

// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

/**
 * @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.
 */
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].
     */
    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);
}

// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://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/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(
            address(this).balance >= amount,
            "Address: insufficient balance"
        );

        (bool success, ) = recipient.call{value: amount}("");
        require(
            success,
            "Address: unable to send value, recipient may have reverted"
        );
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data)
        internal
        returns (bytes memory)
    {
        return
            functionCallWithValue(
                target,
                data,
                0,
                "Address: low-level call failed"
            );
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return
            functionCallWithValue(
                target,
                data,
                value,
                "Address: low-level call with value failed"
            );
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(
            address(this).balance >= value,
            "Address: insufficient balance for call"
        );
        (bool success, bytes memory returndata) = target.call{value: value}(
            data
        );
        return
            verifyCallResultFromTarget(
                target,
                success,
                returndata,
                errorMessage
            );
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data)
        internal
        view
        returns (bytes memory)
    {
        return
            functionStaticCall(
                target,
                data,
                "Address: low-level static call failed"
            );
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return
            verifyCallResultFromTarget(
                target,
                success,
                returndata,
                errorMessage
            );
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data)
        internal
        returns (bytes memory)
    {
        return
            functionDelegateCall(
                target,
                data,
                "Address: low-level delegate call failed"
            );
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return
            verifyCallResultFromTarget(
                target,
                success,
                returndata,
                errorMessage
            );
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage)
        private
        pure
    {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

/**
 * @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;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(token.transfer.selector, to, value)
        );
    }

    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)
        );
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(
            token,
            abi.encodeWithSelector(
                token.approve.selector,
                spender,
                newAllowance
            )
        );
    }

    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"
            );
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(
                token,
                abi.encodeWithSelector(
                    token.approve.selector,
                    spender,
                    newAllowance
                )
            );
        }
    }

    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"
        );
        if (returndata.length > 0) {
            // Return data is optional
            require(
                abi.decode(returndata, (bool)),
                "SafeERC20: ERC20 operation did not succeed"
            );
        }
    }
}

abstract contract TokenRecoverable is ITokenRecoverable {
    // Using safeTransfer since interacting with other ERC20s
    using SafeERC20 for IERC20;

    address public admin;

    constructor(address _admin) {
        admin = _admin;
    }

    modifier isAdmin() {
        require(msg.sender == admin, "TokenRecoverable: Caller not admin");
        _;
    }

    /**
     * Only allows a syndicate address to access any ERC20 tokens erroneously sent to the contract.
     *
     * Emits a `TokenRecoveredERC20` event.
     *
     * Requirements:
     * - None
     * @param recipient Address that erroneously sent the ERC20 token(s)
     * @param erc20 Erroneously-sent ERC20 token to recover
     * @param amount Amount to recover
     */
    function recoverERC20(
        address recipient,
        address erc20,
        uint256 amount
    ) external isAdmin {
        IERC20(erc20).safeTransfer(recipient, amount);
        emit TokenRecoveredERC20(recipient, erc20, amount);
    }

    /**
     * Only allows a syndicate address to access any ERC721 tokens erroneously sent to the contract.
     *
     * Emits a `TokenRecoveredERC721` event.
     *
     * Requirements:
     * - None
     * @param recipient Address that erroneously sent the ERC721 token
     * @param erc721 Erroneously-sent ERC721 token to recover
     * @param tokenId The tokenId to recover
     */
    function recoverERC721(
        address recipient,
        address erc721,
        uint256 tokenId
    ) external isAdmin {
        IERC721(erc721).transferFrom(address(this), recipient, tokenId);
        emit TokenRecoveredERC721(recipient, erc721, tokenId);
    }
}

// Public mint module that allows anyone willing to pay the ETH price to mint.
contract EthPriceMintModule is
    ReentrancyGuard,
    ERC165CheckerERC721Collective,
    TokenOwnerChecker,
    TokenRecoverable
{
    // Collective => price to mint 1 token in wei
    mapping(address => uint256) public ethPrice;

    event EthPriceUpdated(address indexed collective, uint256 ethPrice_);
    event Minted(
        address indexed collective,
        address indexed account,
        uint256 amount
    );

    constructor(address admin) TokenRecoverable(admin) {}

    /// Update eth price for minting
    /// @param collective Collective to update
    /// @param ethPrice_ The price per ERC721
    function updateEthPrice(address collective, uint256 ethPrice_)
        public
        onlyTokenOwner(collective)
    {
        ethPrice[collective] = ethPrice_;
        emit EthPriceUpdated(collective, ethPrice_);
    }

    /// Mint Collective NFT - one per person
    /// @param collective Collective to mint
    /// @param amount amount to be minted
    /// @return true
    function mint(address collective, uint256 amount)
        external
        payable
        nonReentrant
        onlyCollectiveInterface(collective)
        returns (bool)
    {
        require(
            msg.value == ethPrice[collective] * amount,
            "EthPriceMintModule: Must send ETH value equal to ethPrice"
        );

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, ) = payable(Ownable(collective).owner()).call{
            value: msg.value
        }("");
        require(success, "EthPriceMintModule: Failed to send Ether to owner");

        IERC721Collective(collective).bulkMintToOneAddress(msg.sender, amount);
        emit Minted(collective, msg.sender, amount);
        return true;
    }

    /// This function is called for all messages sent to this contract (there
    /// are no other functions). Sending Ether to this contract will cause an
    /// exception, because the fallback function does not have the `payable`
    /// modifier.
    /// Source: https://docs.soliditylang.org/en/v0.8.9/contracts.html?highlight=fallback#fallback-function
    fallback() external {
        revert("EthPriceMintModule: non-existent function");
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"admin","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"collective","type":"address"},{"indexed":false,"internalType":"uint256","name":"ethPrice_","type":"uint256"}],"name":"EthPriceUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"collective","type":"address"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"Minted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":true,"internalType":"address","name":"erc20","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TokenRecoveredERC20","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":true,"internalType":"address","name":"erc721","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"TokenRecoveredERC721","type":"event"},{"stateMutability":"nonpayable","type":"fallback"},{"inputs":[],"name":"admin","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"ethPrice","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"collective","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"mint","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"address","name":"erc20","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"recoverERC20","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"address","name":"erc721","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"recoverERC721","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"collective","type":"address"},{"internalType":"uint256","name":"ethPrice_","type":"uint256"}],"name":"updateEthPrice","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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00000000000000000000000040db79f7f18c468c6552538b488c58b5e72bf4d9

-----Decoded View---------------
Arg [0] : admin (address): 0x40dB79f7f18C468c6552538b488c58B5E72bf4D9

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000040db79f7f18c468c6552538b488c58b5e72bf4d9

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