// File: /contracts/D4ASetting.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.8.10;

import "@openzeppelin/contracts/access/AccessControl.sol";
import "./interface/ID4ASetting.sol";
import "./interface/ID4APRB.sol";
import "./interface/ID4AFeePoolFactory.sol";
import "./interface/ID4AERC20Factory.sol";
import "./interface/ID4AOwnerProxy.sol";
import "./interface/ID4AERC721Factory.sol";

contract D4ASetting is AccessControl, ID4ASetting {
    bytes32 public constant DAO_ROLE = keccak256("DAO_ROLE");
    bytes32 public constant OPERATION_ROLE = keccak256("OPERATION_ROLE");
    bytes32 public constant PROJECT_ROLE = keccak256("PROJECT_ROLE");
    bytes32 public constant SIGNER_ROLE = keccak256("SIGNER_ROLE");

    constructor() {
        _grantRole(DEFAULT_ADMIN_ROLE, msg.sender);
        _setRoleAdmin(PROJECT_ROLE, OPERATION_ROLE);
        _setRoleAdmin(SIGNER_ROLE, OPERATION_ROLE);
    }

    event ChangeCreateFee(uint256 create_project_fee, uint256 create_canvas_fee);

    function changeCreateFee(uint256 _create_project_fee, uint256 _create_canvas_fee) public onlyRole(DAO_ROLE) {
        create_project_fee = _create_project_fee;
        create_canvas_fee = _create_canvas_fee;
        emit ChangeCreateFee(create_project_fee, create_canvas_fee);
    }

    event ChangeProtocolFeePool(address addr);

    function changeProtocolFeePool(address addr) public onlyRole(DAO_ROLE) {
        protocol_fee_pool = addr;
        emit ChangeProtocolFeePool(protocol_fee_pool);
    }

    event ChangeMintFeeRatio(uint256 d4a_ratio, uint256 project_ratio, uint256 project_fee_ratio_flat_price);

    function changeMintFeeRatio(
        uint256 _d4a_fee_ratio,
        uint256 _project_fee_ratio,
        uint256 _project_fee_ratio_flat_price
    ) public onlyRole(DAO_ROLE) {
        mint_d4a_fee_ratio = _d4a_fee_ratio;
        mint_project_fee_ratio = _project_fee_ratio;
        mint_project_fee_ratio_flat_price = _project_fee_ratio_flat_price;
        emit ChangeMintFeeRatio(mint_d4a_fee_ratio, mint_project_fee_ratio, _project_fee_ratio_flat_price);
    }

    event ChangeTradeFeeRatio(uint256 trade_d4a_fee_ratio);

    function changeTradeFeeRatio(uint256 _trade_d4a_fee_ratio) public onlyRole(DAO_ROLE) {
        trade_d4a_fee_ratio = _trade_d4a_fee_ratio;
        emit ChangeTradeFeeRatio(trade_d4a_fee_ratio);
    }

    event ChangeERC20TotalSupply(uint256 total_supply);

    function changeERC20TotalSupply(uint256 _total_supply) public onlyRole(DAO_ROLE) {
        erc20_total_supply = _total_supply;
        emit ChangeERC20TotalSupply(erc20_total_supply);
    }

    event ChangeERC20Ratio(uint256 d4a_ratio, uint256 project_ratio, uint256 canvas_ratio);

    function changeERC20Ratio(uint256 _d4a_ratio, uint256 _project_ratio, uint256 _canvas_ratio)
        public
        onlyRole(DAO_ROLE)
    {
        d4a_erc20_ratio = _d4a_ratio;
        project_erc20_ratio = _project_ratio;
        canvas_erc20_ratio = _canvas_ratio;
        require(_d4a_ratio + _project_ratio + _canvas_ratio == ratio_base, "invalid ratio");

        emit ChangeERC20Ratio(d4a_erc20_ratio, project_erc20_ratio, canvas_erc20_ratio);
    }

    event ChangeMaxMintableRounds(uint256 old_rounds, uint256 new_rounds);

    function changeMaxMintableRounds(uint256 _rounds) public onlyRole(DAO_ROLE) {
        emit ChangeMaxMintableRounds(project_max_rounds, _rounds);
        project_max_rounds = _rounds;
    }

    event ChangeAddress(
        address PRB,
        address erc20_factory,
        address erc721_factory,
        address feepool_factory,
        address owner_proxy,
        address protocol,
        address project_proxy,
        address permission_control
    );

    function changeAddress(
        address _prb,
        address _erc20_factory,
        address _erc721_factory,
        address _feepool_factory,
        address _owner_proxy,
        address _protocol,
        address _project_proxy,
        address _permission_control
    ) public onlyRole(DAO_ROLE) {
        PRB = ID4APRB(_prb);
        erc20_factory = ID4AERC20Factory(_erc20_factory);
        erc721_factory = ID4AERC721Factory(_erc721_factory);
        feepool_factory = ID4AFeePoolFactory(_feepool_factory);
        owner_proxy = ID4AOwnerProxy(_owner_proxy);
        protocol = ID4AProtocolForSetting(_protocol);
        project_proxy = _project_proxy;
        permission_control = IPermissionControl(_permission_control);
        emit ChangeAddress(
            _prb,
            _erc20_factory,
            _erc721_factory,
            _feepool_factory,
            _owner_proxy,
            _protocol,
            _project_proxy,
            _permission_control
        );
    }

    event ChangeAssetPoolOwner(address new_owner);

    function changeAssetPoolOwner(address _owner) public onlyRole(DAO_ROLE) {
        asset_pool_owner = _owner;
        emit ChangeAssetPoolOwner(_owner);
    }

    event ChangeFloorPrices(uint256[] prices);

    function changeFloorPrices(uint256[] memory _prices) public onlyRole(DAO_ROLE) {
        delete floor_prices;
        floor_prices = _prices;
        emit ChangeFloorPrices(_prices);
    }

    event ChangeMaxNFTAmounts(uint256[] amounts);

    function changeMaxNFTAmounts(uint256[] memory _amounts) public onlyRole(DAO_ROLE) {
        delete max_nft_amounts;
        max_nft_amounts = _amounts;
        emit ChangeMaxNFTAmounts(_amounts);
    }

    event ChangeD4APause(bool is_paused);

    function changeD4APause(bool is_paused) public onlyRole(DAO_ROLE) {
        d4a_pause = is_paused;
        emit ChangeD4APause(is_paused);
    }

    event D4ASetProjectPaused(bytes32 project_id, bool is_paused);

    function setProjectPause(bytes32 obj_id, bool is_paused) public {
        require(
            (hasRole(PROJECT_ROLE, msg.sender) && owner_proxy.ownerOf(obj_id) == msg.sender)
                || hasRole(OPERATION_ROLE, msg.sender) || hasRole(DAO_ROLE, msg.sender),
            "only project owner or admin can call"
        );
        pause_status[obj_id] = is_paused;
        emit D4ASetProjectPaused(obj_id, is_paused);
    }

    event D4ASetCanvasPaused(bytes32 canvas_id, bool is_paused);

    function setCanvasPause(bytes32 obj_id, bool is_paused) public {
        require(
            (hasRole(PROJECT_ROLE, msg.sender) && owner_proxy.ownerOf(protocol.getCanvasProject(obj_id)) == msg.sender)
                || hasRole(OPERATION_ROLE, msg.sender) || hasRole(DAO_ROLE, msg.sender),
            "only project owner or admin can call"
        );
        pause_status[obj_id] = is_paused;
        emit D4ASetCanvasPaused(obj_id, is_paused);
    }

    event ChangeWETHAddress(address indexed WETH);

    function changeWETHAddress(address _WETH) public onlyRole(DAO_ROLE) {
        WETH = _WETH;
        emit ChangeWETHAddress(WETH);
    }

    event MembershipTransferred(bytes32 indexed role, address indexed previousMember, address indexed newMember);

    function transferMembership(bytes32 _role, address _previousMember, address _newMember) public {
        require(!hasRole(_role, _newMember), "new member already has the role");
        require(hasRole(_role, _previousMember), "previous member does not have the role");
        require(_newMember != address(0x0) && _previousMember != address(0x0), "invalid address");
        grantRole(_role, _newMember);
        revokeRole(_role, _previousMember);

        emit MembershipTransferred(_role, _previousMember, _newMember);
    }
}

// File: /contracts/interface/IPermissionControl.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.8.10;

import "./ID4AOwnerProxy.sol";

interface IPermissionControl {
    struct Blacklist {
        address[] minterAccounts;
        address[] canvasCreatorAccounts;
    }

    struct Whitelist {
        bytes32 minterMerkleRoot;
        address minterNFTHolderPass;
        bytes32 canvasCreatorMerkleRoot;
        address canvasCreatorNFTHolderPass;
    }

    event MinterBlacklisted(bytes32 indexed daoId, address indexed account);

    event CanvasCreatorBlacklisted(bytes32 indexed daoId, address indexed account);

    event MinterUnBlacklisted(bytes32 indexed daoId, address indexed account);

    event CanvasCreatorUnBlacklisted(bytes32 indexed daoId, address indexed account);

    event WhitelistModified(bytes32 indexed daoId, Whitelist whitelist);

    function addPermissionWithSignature(
        bytes32 daoId,
        Whitelist calldata whitelist,
        Blacklist calldata blacklist,
        bytes calldata signature
    ) external;

    function addPermission(bytes32 daoId, Whitelist calldata whitelist, Blacklist calldata blacklist) external;

    function modifyPermission(
        bytes32 daoId,
        Whitelist calldata whitelist,
        Blacklist calldata blacklist,
        Blacklist calldata unblacklist
    ) external;

    function isMinterBlacklisted(bytes32 daoId, address _account) external view returns (bool);

    function isCanvasCreatorBlacklisted(bytes32 daoId, address _account) external view returns (bool);

    function inMinterWhitelist(bytes32 daoId, address _account, bytes32[] calldata _proof)
        external
        view
        returns (bool);

    function inCanvasCreatorWhitelist(bytes32 daoId, address _account, bytes32[] calldata _proof)
        external
        view
        returns (bool);

    function setOwnerProxy(ID4AOwnerProxy _ownerProxy) external;
}

// File: /contracts/interface/ID4ASetting.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.8.10;

import "./ID4APRB.sol";
import "./ID4AFeePoolFactory.sol";
import "./ID4AERC20Factory.sol";
import "./ID4AOwnerProxy.sol";
import "./ID4AERC721.sol";
import "./ID4AERC721Factory.sol";
import "./IPermissionControl.sol";

interface ID4AProtocolForSetting {
    function getCanvasProject(bytes32 _canvas_id) external view returns (bytes32);
}

contract ID4ASetting {
    uint256 public ratio_base;
    uint256 public min_stamp_duty; //TODO
    uint256 public max_stamp_duty;

    uint256 public create_project_fee;
    address public protocol_fee_pool;
    uint256 public create_canvas_fee;

    uint256 public mint_d4a_fee_ratio;
    uint256 public trade_d4a_fee_ratio;
    uint256 public mint_project_fee_ratio;
    uint256 public mint_project_fee_ratio_flat_price;

    uint256 public erc20_total_supply;

    uint256 public project_max_rounds; //366

    uint256 public project_erc20_ratio;
    uint256 public canvas_erc20_ratio;
    uint256 public d4a_erc20_ratio;

    uint256 public rf_lower_bound;
    uint256 public rf_upper_bound;
    uint256[] public floor_prices;
    uint256[] public max_nft_amounts;

    ID4APRB public PRB;

    string public erc20_name_prefix;
    string public erc20_symbol_prefix;

    ID4AERC721Factory public erc721_factory;
    ID4AERC20Factory public erc20_factory;
    ID4AFeePoolFactory public feepool_factory;
    ID4AOwnerProxy public owner_proxy;
    ID4AProtocolForSetting public protocol;
    IPermissionControl public permission_control;
    address public asset_pool_owner;

    bool public d4a_pause;

    mapping(bytes32 => bool) public pause_status;

    address public WETH;

    address public project_proxy;

    uint256 public reserved_slots;

    constructor() {
        //some default value here
        ratio_base = 10000;
        create_project_fee = 0.1 ether;
        create_canvas_fee = 0.01 ether;
        mint_d4a_fee_ratio = 250;
        trade_d4a_fee_ratio = 250;
        mint_project_fee_ratio = 3000;
        mint_project_fee_ratio_flat_price = 3500;
        rf_lower_bound = 500;
        rf_upper_bound = 1000;

        project_erc20_ratio = 300;
        d4a_erc20_ratio = 200;
        canvas_erc20_ratio = 9500;
        project_max_rounds = 366;
        reserved_slots = 110;
    }

    function floor_prices_length() public view returns (uint256) {
        return floor_prices.length;
    }

    function max_nft_amounts_length() public view returns (uint256) {
        return max_nft_amounts.length;
    }
}

// File: /contracts/interface/ID4APRB.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.8.10;

interface ID4APRB {
    function isStart() external view returns (bool);
    function currentRound() external view returns (uint256);
}

// File: /contracts/interface/ID4AOwnerProxy.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.8.10;

interface ID4AOwnerProxy {
    function ownerOf(bytes32 hash) external view returns (address);
    function initOwnerOf(bytes32 hash, address addr) external returns (bool);
    function transferOwnership(bytes32 hash, address newOwner) external;
}

// File: /contracts/interface/ID4AFeePoolFactory.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.8.10;

interface ID4AFeePoolFactory {
    function createD4AFeePool(string memory _name) external returns (address pool);
}

// File: /contracts/interface/ID4AERC721Factory.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.8.10;

interface ID4AERC721Factory {
    function createD4AERC721(string memory _name, string memory _symbol) external returns (address);
}

// File: /contracts/interface/ID4AERC721.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.8.10;

interface ID4AERC721 {
    function mintItem(address player, string memory tokenURI) external returns (uint256);

    function setRoyaltyInfo(address _receiver, uint96 _royaltyFeeInBips) external;
}

// File: /contracts/interface/ID4AERC20Factory.sol



// SPDX-License-Identifier: MIT
pragma solidity >=0.8.10;

interface ID4AERC20Factory {
    function createD4AERC20(string memory _name, string memory _symbol, address _minter) external returns (address);
}

// File: @openzeppelin/contracts/utils/math/Math.sol



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

pragma solidity ^0.8.0;

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

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

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

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

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

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

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1);

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
        }
    }
}

// File: @openzeppelin/contracts/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);
}

// File: @openzeppelin/contracts/utils/introspection/ERC165.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// File: @openzeppelin/contracts/utils/Strings.sol



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

pragma solidity ^0.8.0;

import "./math/Math.sol";

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

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

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

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

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

// File: @openzeppelin/contracts/utils/Context.sol



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

pragma solidity ^0.8.0;

/**
 * @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;
    }
}

// File: @openzeppelin/contracts/access/IAccessControl.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol)

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

// File: @openzeppelin/contracts/access/AccessControl.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (access/AccessControl.sol)

pragma solidity ^0.8.0;

import "./IAccessControl.sol";
import "../utils/Context.sol";
import "../utils/Strings.sol";
import "../utils/introspection/ERC165.sol";

/**
 * @dev Contract module that allows children to implement role-based access
 * control mechanisms. This is a lightweight version that doesn't allow enumerating role
 * members except through off-chain means by accessing the contract event logs. Some
 * applications may benefit from on-chain enumerability, for those cases see
 * {AccessControlEnumerable}.
 *
 * Roles are referred to by their `bytes32` identifier. These should be exposed
 * in the external API and be unique. The best way to achieve this is by
 * using `public constant` hash digests:
 *
 * ```
 * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
 * ```
 *
 * Roles can be used to represent a set of permissions. To restrict access to a
 * function call, use {hasRole}:
 *
 * ```
 * function foo() public {
 *     require(hasRole(MY_ROLE, msg.sender));
 *     ...
 * }
 * ```
 *
 * Roles can be granted and revoked dynamically via the {grantRole} and
 * {revokeRole} functions. Each role has an associated admin role, and only
 * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
 *
 * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
 * that only accounts with this role will be able to grant or revoke other
 * roles. More complex role relationships can be created by using
 * {_setRoleAdmin}.
 *
 * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
 * grant and revoke this role. Extra precautions should be taken to secure
 * accounts that have been granted it.
 */
abstract contract AccessControl is Context, IAccessControl, ERC165 {
    struct RoleData {
        mapping(address => bool) members;
        bytes32 adminRole;
    }

    mapping(bytes32 => RoleData) private _roles;

    bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;

    /**
     * @dev Modifier that checks that an account has a specific role. Reverts
     * with a standardized message including the required role.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     *
     * _Available since v4.1._
     */
    modifier onlyRole(bytes32 role) {
        _checkRole(role);
        _;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
        return _roles[role].members[account];
    }

    /**
     * @dev Revert with a standard message if `_msgSender()` is missing `role`.
     * Overriding this function changes the behavior of the {onlyRole} modifier.
     *
     * Format of the revert message is described in {_checkRole}.
     *
     * _Available since v4.6._
     */
    function _checkRole(bytes32 role) internal view virtual {
        _checkRole(role, _msgSender());
    }

    /**
     * @dev Revert with a standard message if `account` is missing `role`.
     *
     * The format of the revert reason is given by the following regular expression:
     *
     *  /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
     */
    function _checkRole(bytes32 role, address account) internal view virtual {
        if (!hasRole(role, account)) {
            revert(
                string(
                    abi.encodePacked(
                        "AccessControl: account ",
                        Strings.toHexString(account),
                        " is missing role ",
                        Strings.toHexString(uint256(role), 32)
                    )
                )
            );
        }
    }

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) {
        return _roles[role].adminRole;
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleGranted} event.
     */
    function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _grantRole(role, account);
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     *
     * May emit a {RoleRevoked} event.
     */
    function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) {
        _revokeRole(role, account);
    }

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been revoked `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     *
     * May emit a {RoleRevoked} event.
     */
    function renounceRole(bytes32 role, address account) public virtual override {
        require(account == _msgSender(), "AccessControl: can only renounce roles for self");

        _revokeRole(role, account);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event. Note that unlike {grantRole}, this function doesn't perform any
     * checks on the calling account.
     *
     * May emit a {RoleGranted} event.
     *
     * [WARNING]
     * ====
     * This function should only be called from the constructor when setting
     * up the initial roles for the system.
     *
     * Using this function in any other way is effectively circumventing the admin
     * system imposed by {AccessControl}.
     * ====
     *
     * NOTE: This function is deprecated in favor of {_grantRole}.
     */
    function _setupRole(bytes32 role, address account) internal virtual {
        _grantRole(role, account);
    }

    /**
     * @dev Sets `adminRole` as ``role``'s admin role.
     *
     * Emits a {RoleAdminChanged} event.
     */
    function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
        bytes32 previousAdminRole = getRoleAdmin(role);
        _roles[role].adminRole = adminRole;
        emit RoleAdminChanged(role, previousAdminRole, adminRole);
    }

    /**
     * @dev Grants `role` to `account`.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleGranted} event.
     */
    function _grantRole(bytes32 role, address account) internal virtual {
        if (!hasRole(role, account)) {
            _roles[role].members[account] = true;
            emit RoleGranted(role, account, _msgSender());
        }
    }

    /**
     * @dev Revokes `role` from `account`.
     *
     * Internal function without access restriction.
     *
     * May emit a {RoleRevoked} event.
     */
    function _revokeRole(bytes32 role, address account) internal virtual {
        if (hasRole(role, account)) {
            _roles[role].members[account] = false;
            emit RoleRevoked(role, account, _msgSender());
        }
    }
}