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// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {IERC2981} from "@openzeppelin/contracts/interfaces/IERC2981.sol";

import {IRoyaltyFeeManager} from "./interfaces/IRoyaltyFeeManager.sol";
import {IRoyaltyFeeRegistry} from "./interfaces/IRoyaltyFeeRegistry.sol";

/**
 * @title RoyaltyFeeManagerV1B
 * @notice It handles the logic to check and transfer rebate fees (if any).
 */
contract RoyaltyFeeManagerV1B is IRoyaltyFeeManager {
    // Interface Id ERC2981
    bytes4 public constant INTERFACE_ID_ERC2981 = 0x2a55205a;

    // Standard royalty fee
    uint256 public constant STANDARD_ROYALTY_FEE = 50;

    // Royalty fee registry
    IRoyaltyFeeRegistry public immutable royaltyFeeRegistry;

    /**
     * @notice Constructor
     * @param _royaltyFeeRegistry Royalty fee registry address
     */
    constructor(address _royaltyFeeRegistry) {
        royaltyFeeRegistry = IRoyaltyFeeRegistry(_royaltyFeeRegistry);
    }

    /**
     * @notice Calculate royalty fee and get recipient
     * @param collection address of the NFT contract
     * @param tokenId tokenId
     * @param amount amount to transfer
     */
    function calculateRoyaltyFeeAndGetRecipient(
        address collection,
        uint256 tokenId,
        uint256 amount
    ) external view override returns (address receiver, uint256 royaltyAmount) {
        // 1. Check if there is a royalty info in the system
        (receiver, ) = royaltyFeeRegistry.royaltyInfo(collection, amount);

        // 2. If the receiver is address(0), check if it supports the ERC2981 interface
        if (receiver == address(0)) {
            if (IERC2981(collection).supportsInterface(INTERFACE_ID_ERC2981)) {
                (bool status, bytes memory data) = collection.staticcall(
                    abi.encodeWithSelector(IERC2981.royaltyInfo.selector, tokenId, amount)
                );
                if (status) {
                    (receiver, ) = abi.decode(data, (address, uint256));
                }
            }
        }

        // A fixed royalty fee is applied
        if (receiver != address(0)) {
            royaltyAmount = (STANDARD_ROYALTY_FEE * amount) / 10000;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC2981.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Interface for the NFT Royalty Standard
 */
interface IERC2981 is IERC165 {
    /**
     * @dev Called with the sale price to determine how much royalty is owed and to whom.
     * @param tokenId - the NFT asset queried for royalty information
     * @param salePrice - the sale price of the NFT asset specified by `tokenId`
     * @return receiver - address of who should be sent the royalty payment
     * @return royaltyAmount - the royalty payment amount for `salePrice`
     */
    function royaltyInfo(uint256 tokenId, uint256 salePrice)
        external
        view
        returns (address receiver, uint256 royaltyAmount);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IRoyaltyFeeManager {
    function calculateRoyaltyFeeAndGetRecipient(
        address collection,
        uint256 tokenId,
        uint256 amount
    ) external view returns (address, uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IRoyaltyFeeRegistry {
    function updateRoyaltyInfoForCollection(
        address collection,
        address setter,
        address receiver,
        uint256 fee
    ) external;

    function updateRoyaltyFeeLimit(uint256 _royaltyFeeLimit) external;

    function royaltyInfo(address collection, uint256 amount) external view returns (address, uint256);

    function royaltyFeeInfoCollection(address collection)
        external
        view
        returns (
            address,
            address,
            uint256
        );
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC165.sol)

pragma solidity ^0.8.0;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface 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);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 888888
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"_royaltyFeeRegistry","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"INTERFACE_ID_ERC2981","outputs":[{"internalType":"bytes4","name":"","type":"bytes4"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"STANDARD_ROYALTY_FEE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"collection","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"calculateRoyaltyFeeAndGetRecipient","outputs":[{"internalType":"address","name":"receiver","type":"address"},{"internalType":"uint256","name":"royaltyAmount","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"royaltyFeeRegistry","outputs":[{"internalType":"contract IRoyaltyFeeRegistry","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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00000000000000000000000055010472a93921a117aad9b055c141060c8d8022

-----Decoded View---------------
Arg [0] : _royaltyFeeRegistry (address): 0x55010472a93921a117aAD9b055c141060c8d8022

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000055010472a93921a117aad9b055c141060c8d8022