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// SPDX-License-Identifier: LGPL-3.0-only
// Created By: Art Blocks Inc.

import "../interfaces/0.8.x/IGenArt721CoreContractV1.sol";
import "../interfaces/0.8.x/IMinterFilterV0.sol";
import "../interfaces/0.8.x/IFilteredMinterV0.sol";

import "@openzeppelin/contracts/security/ReentrancyGuard.sol";

pragma solidity 0.8.9;

/**
 * @title Filtered Minter contract that allows tokens to be minted with ETH.
 * @author Art Blocks Inc.
 */
contract MinterSetPriceV1 is ReentrancyGuard, IFilteredMinterV0 {
    /// Core contract address this minter interacts with
    address public immutable genArt721CoreAddress;

    /// This contract handles cores with interface IV1
    IGenArt721CoreContractV1 private immutable genArtCoreContract;

    /// Minter filter address this minter interacts with
    address public immutable minterFilterAddress;

    /// Minter filter this minter may interact with.
    IMinterFilterV0 private immutable minterFilter;

    /// minterType for this minter
    string public constant minterType = "MinterSetPriceV1";

    uint256 constant ONE_MILLION = 1_000_000;

    /// projectId => has project reached its maximum number of invocations?
    mapping(uint256 => bool) public projectMaxHasBeenInvoked;
    /// projectId => project's maximum number of invocations
    mapping(uint256 => uint256) public projectMaxInvocations;
    /// projectId => price per token in wei - supersedes any defined core price
    mapping(uint256 => uint256) private projectIdToPricePerTokenInWei;
    /// projectId => price per token has been configured on this minter
    mapping(uint256 => bool) private projectIdToPriceIsConfigured;

    modifier onlyCoreWhitelisted() {
        require(
            genArtCoreContract.isWhitelisted(msg.sender),
            "Only Core whitelisted"
        );
        _;
    }

    modifier onlyArtist(uint256 _projectId) {
        require(
            msg.sender ==
                genArtCoreContract.projectIdToArtistAddress(_projectId),
            "Only Artist"
        );
        _;
    }

    /**
     * @notice Initializes contract to be a Filtered Minter for
     * `_minterFilter`, integrated with Art Blocks core contract
     * at address `_genArt721Address`.
     * @param _genArt721Address Art Blocks core contract address for
     * which this contract will be a minter.
     * @param _minterFilter Minter filter for whichccthis will a
     * filtered minter.
     */
    constructor(address _genArt721Address, address _minterFilter)
        ReentrancyGuard()
    {
        genArt721CoreAddress = _genArt721Address;
        genArtCoreContract = IGenArt721CoreContractV1(_genArt721Address);
        minterFilterAddress = _minterFilter;
        minterFilter = IMinterFilterV0(_minterFilter);
        require(
            minterFilter.genArt721CoreAddress() == _genArt721Address,
            "Illegal contract pairing"
        );
    }

    /**
     * @notice Sets the maximum invocations of project `_projectId` based
     * on the value currently defined in the core contract.
     * @param _projectId Project ID to set the maximum invocations for.
     * @dev also checks and may refresh projectMaxHasBeenInvoked for project
     * @dev this enables gas reduction after maxInvocations have been reached -
     * core contracts shall still enforce a maxInvocation check during mint.
     */
    function setProjectMaxInvocations(uint256 _projectId)
        external
        onlyCoreWhitelisted
    {
        uint256 invocations;
        uint256 maxInvocations;
        (, , invocations, maxInvocations, , , , , ) = genArtCoreContract
            .projectTokenInfo(_projectId);
        // update storage with results
        projectMaxInvocations[_projectId] = maxInvocations;
        if (invocations < maxInvocations) {
            projectMaxHasBeenInvoked[_projectId] = false;
        }
    }

    /**
     * @notice Warning: Disabling purchaseTo is not supported on this minter.
     * This method exists purely for interface-conformance purposes.
     */
    function togglePurchaseToDisabled(uint256 _projectId)
        external
        view
        onlyArtist(_projectId)
    {
        revert("Action not supported");
    }

    /**
     * @notice Updates this minter's price per token of project `_projectId`
     * to be '_pricePerTokenInWei`, in Wei.
     * This price supersedes any legacy core contract price per token value.
     */
    function updatePricePerTokenInWei(
        uint256 _projectId,
        uint256 _pricePerTokenInWei
    ) external onlyArtist(_projectId) {
        projectIdToPricePerTokenInWei[_projectId] = _pricePerTokenInWei;
        projectIdToPriceIsConfigured[_projectId] = true;
        emit PricePerTokenInWeiUpdated(_projectId, _pricePerTokenInWei);
    }

    /**
     * @notice Purchases a token from project `_projectId`.
     * @param _projectId Project ID to mint a token on.
     * @return tokenId Token ID of minted token
     */
    function purchase(uint256 _projectId)
        external
        payable
        returns (uint256 tokenId)
    {
        tokenId = purchaseTo(msg.sender, _projectId);
        return tokenId;
    }

    /**
     * @notice Purchases a token from project `_projectId` and sets
     * the token's owner to `_to`.
     * @param _to Address to be the new token's owner.
     * @param _projectId Project ID to mint a token on.
     * @return tokenId Token ID of minted token
     */
    function purchaseTo(address _to, uint256 _projectId)
        public
        payable
        nonReentrant
        returns (uint256 tokenId)
    {
        // CHECKS
        require(
            !projectMaxHasBeenInvoked[_projectId],
            "Maximum number of invocations reached"
        );

        // require artist to have configured price of token on this minter
        require(
            projectIdToPriceIsConfigured[_projectId],
            "Price not configured"
        );

        require(
            msg.value >= projectIdToPricePerTokenInWei[_projectId],
            "Must send minimum value to mint!"
        );

        // EFFECTS
        tokenId = minterFilter.mint(_to, _projectId, msg.sender);
        // what if projectMaxInvocations[_projectId] is 0 (default value)?
        // that is intended, so that by default the minter allows infinite transactions,
        // allowing the artblocks contract to stop minting
        // uint256 tokenInvocation = tokenId % ONE_MILLION;
        if (
            projectMaxInvocations[_projectId] > 0 &&
            tokenId % ONE_MILLION == projectMaxInvocations[_projectId] - 1
        ) {
            projectMaxHasBeenInvoked[_projectId] = true;
        }

        // INTERACTIONS
        _splitFundsETH(_projectId);

        return tokenId;
    }

    /**
     * @dev splits ETH funds between sender (if refund), foundation,
     * artist, and artist's additional payee for a token purchased on
     * project `_projectId`.
     * @dev utilizes transfer() to send ETH, so access lists may need to be
     * populated when purchasing tokens.
     */
    function _splitFundsETH(uint256 _projectId) internal {
        if (msg.value > 0) {
            uint256 pricePerTokenInWei = projectIdToPricePerTokenInWei[
                _projectId
            ];
            uint256 refund = msg.value - pricePerTokenInWei;
            if (refund > 0) {
                (bool success_, ) = msg.sender.call{value: refund}("");
                require(success_, "Refund failed");
            }
            uint256 foundationAmount = (pricePerTokenInWei *
                genArtCoreContract.artblocksPercentage()) / 100;
            if (foundationAmount > 0) {
                (bool success_, ) = genArtCoreContract.artblocksAddress().call{
                    value: foundationAmount
                }("");
                require(success_, "Foundation payment failed");
            }
            uint256 projectFunds = pricePerTokenInWei - foundationAmount;
            uint256 additionalPayeeAmount;
            if (
                genArtCoreContract.projectIdToAdditionalPayeePercentage(
                    _projectId
                ) > 0
            ) {
                additionalPayeeAmount =
                    (projectFunds *
                        genArtCoreContract.projectIdToAdditionalPayeePercentage(
                            _projectId
                        )) /
                    100;
                if (additionalPayeeAmount > 0) {
                    (bool success_, ) = genArtCoreContract
                        .projectIdToAdditionalPayee(_projectId)
                        .call{value: additionalPayeeAmount}("");
                    require(success_, "Additional payment failed");
                }
            }
            uint256 creatorFunds = projectFunds - additionalPayeeAmount;
            if (creatorFunds > 0) {
                (bool success_, ) = genArtCoreContract
                    .projectIdToArtistAddress(_projectId)
                    .call{value: creatorFunds}("");
                require(success_, "Artist payment failed");
            }
        }
    }

    /**
     * @notice Gets if price of token is configured, price of minting a
     * token on project `_projectId`, and currency symbol and address to be
     * used as payment. Supersedes any core contract price information.
     * @param _projectId Project ID to get price information for.
     * @return isConfigured true only if token price has been configured on
     * this minter
     * @return tokenPriceInWei current price of token on this minter - invalid
     * if price has not yet been configured
     * @return currencySymbol currency symbol for purchases of project on this
     * minter. This minter always returns "ETH"
     * @return currencyAddress currency address for purchases of project on
     * this minter. This minter always returns null address, reserved for ether
     */
    function getPriceInfo(uint256 _projectId)
        external
        view
        returns (
            bool isConfigured,
            uint256 tokenPriceInWei,
            string memory currencySymbol,
            address currencyAddress
        )
    {
        isConfigured = projectIdToPriceIsConfigured[_projectId];
        tokenPriceInWei = projectIdToPricePerTokenInWei[_projectId];
        currencySymbol = "ETH";
        currencyAddress = address(0);
    }
}

// SPDX-License-Identifier: LGPL-3.0-only
// Created By: Art Blocks Inc.

pragma solidity ^0.8.0;

interface IGenArt721CoreContractV1 {
    event Mint(
        address indexed _to,
        uint256 indexed _tokenId,
        uint256 indexed _projectId
    );

    // getter function of public variable
    function admin() external view returns (address);

    // getter function of public variable
    function nextProjectId() external view returns (uint256);

    // getter function of public mapping
    function tokenIdToProjectId(uint256 tokenId)
        external
        view
        returns (uint256 projectId);

    function isWhitelisted(address sender) external view returns (bool);

    // @dev this is not available in V0
    function isMintWhitelisted(address minter) external view returns (bool);

    function projectIdToArtistAddress(uint256 _projectId)
        external
        view
        returns (address payable);

    function projectIdToAdditionalPayee(uint256 _projectId)
        external
        view
        returns (address payable);

    function projectIdToAdditionalPayeePercentage(uint256 _projectId)
        external
        view
        returns (uint256);

    function projectTokenInfo(uint256 _projectId)
        external
        view
        returns (
            address,
            uint256,
            uint256,
            uint256,
            bool,
            address,
            uint256,
            string memory,
            address
        );

    function artblocksAddress() external view returns (address payable);

    function artblocksPercentage() external view returns (uint256);

    function mint(
        address _to,
        uint256 _projectId,
        address _by
    ) external returns (uint256 tokenId);

    function getRoyaltyData(uint256 _tokenId)
        external
        view
        returns (
            address artistAddress,
            address additionalPayee,
            uint256 additionalPayeePercentage,
            uint256 royaltyFeeByID
        );
}

// SPDX-License-Identifier: LGPL-3.0-only
// Created By: Art Blocks Inc.

pragma solidity ^0.8.0;

interface IMinterFilterV0 {
    /**
     * @notice Approved minter `_minterAddress`.
     */
    event MinterApproved(address indexed _minterAddress, string _minterType);

    /**
     * @notice Revoked approval for minter `_minterAddress`
     */
    event MinterRevoked(address indexed _minterAddress);

    /**
     * @notice Minter `_minterAddress` of type `_minterType`
     * registered for project `_projectId`.
     */
    event ProjectMinterRegistered(
        uint256 indexed _projectId,
        address indexed _minterAddress,
        string _minterType
    );

    /**
     * @notice Any active minter removed for project `_projectId`.
     */
    event ProjectMinterRemoved(uint256 indexed _projectId);

    function genArt721CoreAddress() external returns (address);

    function setMinterForProject(uint256, address) external;

    function removeMinterForProject(uint256) external;

    function mint(
        address _to,
        uint256 _projectId,
        address sender
    ) external returns (uint256);

    function getMinterForProject(uint256) external view returns (address);

    function projectHasMinter(uint256) external view returns (bool);
}

// SPDX-License-Identifier: LGPL-3.0-only
// Created By: Art Blocks Inc.

pragma solidity ^0.8.0;

interface IFilteredMinterV0 {
    /**
     * @notice Price per token in wei updated for project `_projectId` to
     * `_pricePerTokenInWei`.
     */
    event PricePerTokenInWeiUpdated(
        uint256 indexed _projectId,
        uint256 indexed _pricePerTokenInWei
    );

    /**
     * @notice Currency updated for project `_projectId` to symbol
     * `_currencySymbol` and address `_currencyAddress`.
     */
    event ProjectCurrencyInfoUpdated(
        uint256 indexed _projectId,
        address indexed _currencyAddress,
        string _currencySymbol
    );

    /// togglePurchaseToDisabled updated
    event PurchaseToDisabledUpdated(
        uint256 indexed _projectId,
        bool _purchaseToDisabled
    );

    // getter function of public variable
    function minterType() external view returns (string memory);

    function genArt721CoreAddress() external returns (address);

    function minterFilterAddress() external returns (address);

    // Triggers a purchase of a token from the desired project, to the
    // TX-sending address.
    function purchase(uint256 _projectId)
        external
        payable
        returns (uint256 tokenId);

    // Triggers a purchase of a token from the desired project, to the specified
    // receiving address.
    function purchaseTo(address _to, uint256 _projectId)
        external
        payable
        returns (uint256 tokenId);

    // Toggles the ability for `purchaseTo` to be called directly with a
    // specified receiving address that differs from the TX-sending address.
    function togglePurchaseToDisabled(uint256 _projectId) external;

    // Called to make the minter contract aware of the max invocations for a
    // given project.
    function setProjectMaxInvocations(uint256 _projectId) external;

    // Gets if token price is configured, token price in wei, currency symbol,
    // and currency address, assuming this is project's minter.
    // Supersedes any defined core price.
    function getPriceInfo(uint256 _projectId)
        external
        view
        returns (
            bool isConfigured,
            uint256 tokenPriceInWei,
            string memory currencySymbol,
            address currencyAddress
        );
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @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() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

        _;

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

{
  "optimizer": {
    "enabled": true,
    "runs": 100
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"_genArt721Address","type":"address"},{"internalType":"address","name":"_minterFilter","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"_projectId","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"_pricePerTokenInWei","type":"uint256"}],"name":"PricePerTokenInWeiUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"_projectId","type":"uint256"},{"indexed":true,"internalType":"address","name":"_currencyAddress","type":"address"},{"indexed":false,"internalType":"string","name":"_currencySymbol","type":"string"}],"name":"ProjectCurrencyInfoUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"_projectId","type":"uint256"},{"indexed":false,"internalType":"bool","name":"_purchaseToDisabled","type":"bool"}],"name":"PurchaseToDisabledUpdated","type":"event"},{"inputs":[],"name":"genArt721CoreAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_projectId","type":"uint256"}],"name":"getPriceInfo","outputs":[{"internalType":"bool","name":"isConfigured","type":"bool"},{"internalType":"uint256","name":"tokenPriceInWei","type":"uint256"},{"internalType":"string","name":"currencySymbol","type":"string"},{"internalType":"address","name":"currencyAddress","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minterFilterAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minterType","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"projectMaxHasBeenInvoked","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"projectMaxInvocations","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_projectId","type":"uint256"}],"name":"purchase","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"address","name":"_to","type":"address"},{"internalType":"uint256","name":"_projectId","type":"uint256"}],"name":"purchaseTo","outputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"stateMutability":"payable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_projectId","type":"uint256"}],"name":"setProjectMaxInvocations","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_projectId","type":"uint256"}],"name":"togglePurchaseToDisabled","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_projectId","type":"uint256"},{"internalType":"uint256","name":"_pricePerTokenInWei","type":"uint256"}],"name":"updatePricePerTokenInWei","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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000000000000000000000000a7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd2700000000000000000000000004aafce293b9b0fad169c78049a81e400f518e199

-----Decoded View---------------
Arg [0] : _genArt721Address (address): 0xa7d8d9ef8D8Ce8992Df33D8b8CF4Aebabd5bD270
Arg [1] : _minterFilter (address): 0x4aafCE293b9B0faD169c78049A81e400f518E199

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000a7d8d9ef8d8ce8992df33d8b8cf4aebabd5bd270
Arg [1] : 0000000000000000000000004aafce293b9b0fad169c78049a81e400f518e199