// File: contracts/FVCKCRYSTAL.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @artist: FVCKRENDER
/// @author: manifold.xyz

//////////////////////////////////////////////////////////////////////////////////////////////
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//        _______    __________ __     ____________  ________________    __       __ __     //
//       / ____/ |  / / ____/ //_/    / ____/ __ \ \/ / ___/_  __/   |  / /     _/_//_/     //
//      / /_   | | / / /   / ,<      / /   / /_/ /\  /\__ \ / / / /| | / /    _/_//_/       //
//     / __/   | |/ / /___/ /| |    / /___/ _, _/ / /___/ // / / ___ |/ /____/_//_/         //
//    /_/      |___/\____/_/ |_|____\____/_/ |_| /_//____//_/ /_/  |_/_____/_//_/           //
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//                                                         #@,  @@*                         //
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//                                             @& @&                                 %@     //
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//                                          @@%.@&                                  @#@     //
//                                          @/   @,                                *@ @     //
//                                          %&    #@                               @. @     //
//                                          *@      @&                            &&  @     //
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//                                           @*        *@@*                      @/   @     //
//                                           @%         /@  %@@.4169,/%@@@@@@@&#*@    @     //
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//                                            @           @, &@                  @    @     //
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//                                            @%           @&                    @    @     //
//                                            (@          .@@                    @    @     //
//                                            .@          &@@*                   @   .@     //
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//                                             %@        &&  &&                  @   .@     //
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//                                                %@.@( %@    *@                 @(@ @/     //
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//                                                   @( #@     #@              @.@@ &&      //
//                                                    %@ (@     @            .@   @&@       //
//                                                     .@ (@    @%          *@     @.       //
//                                                       @#/@   .@         (@    @&         //
//                                                        %@/@   @*       %@   @@           //
//                                                          @*@  (@      @&  (@             //
//                                                           @&@  @     @% ,@.              //
//                                                            %@@ &&   @/ @(                //
//                                                             .@@.@  @,@&                  //
//                                                               @FVCK@                     //
//                                                                %@@@                      //
//                                                                 69                       //
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//////////////////////////////////////////////////////////////////////////////////////////////

import "@manifoldxyz/libraries-solidity/contracts/access/AdminControl.sol";
import "./core/IERC721CreatorCore.sol";
import "./extensions/ICreatorExtensionTokenURI.sol";
import "./redeem/ERC721BurnRedeem.sol";

import "@openzeppelin/contracts/utils/Strings.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165.sol";

/**
 * FVCK_CRYSTAL//
 */
contract FVCKCRYSTAL is AdminControl, ERC721BurnRedeem, ICreatorExtensionTokenURI {

    using Strings for uint256;

    bool private _active;
    uint256 private _activeTime;
    string private _tokenURIPrefix;

    event Unveil(uint256 collectibleId, address tokenAddress, uint256 tokenId);

    constructor(address creator) ERC721BurnRedeem(creator, 1, 4169) {}

    function supportsInterface(bytes4 interfaceId) public view virtual override(AdminControl, ERC721BurnRedeem, IERC165) returns (bool) {
        return interfaceId == type(ICreatorExtensionTokenURI).interfaceId || AdminControl.supportsInterface(interfaceId) || ERC721BurnRedeem.supportsInterface(interfaceId);
    }

    /**
     * @dev Is contract active
     */
    function active() external view returns(bool) {
        return _active;
    }

    /**
     * @dev Time to sale (in seconds)
     */
    function timeToSale() external view returns(uint256) {
        require(_active, "Inactive");
        if (block.timestamp >= (_activeTime + 3600)) return 0;
        return (_activeTime + 3600) - block.timestamp;
    }

    /**
     * @dev Pre-mine
     */
    function premine(uint256 amount) external adminRequired {
        require(!_active, "Already active");
        for (uint i = 0; i < amount; i++) {
            uint256 tokenId = super._mintRedemption(owner());
            emit Unveil(_mintNumbers[tokenId], _creator, tokenId);
        }
    }

    /**
     * @dev Activate the contract
     */
    function activate() external adminRequired {
        require(!_active, "Already active");
        _activeTime = block.timestamp;
        _active = true;
    }

    /**
     * @dev Withdraw funds
     */
    function withdraw(address payable recipient, uint256 amount) external adminRequired {
        recipient.transfer(amount);
    }

    /**
     *  @dev set the tokenURI prefix
     */
    function setTokenURIPrefix(string calldata prefix) external adminRequired {
        _tokenURIPrefix = prefix;
    }

    /**
     * @dev purchase a crystal
     */
    function purchase(uint256 amount) external payable nonReentrant {
        require(_active, "Inactive");
        require(block.timestamp >= _activeTime + 3600, "Purchasing not active");
        require(amount <= redemptionRemaining() && amount <= 5, "Too many requested");
        require(msg.value == amount*416900000000000000, "Invalid purchase amount sent");
        for (uint i = 0; i < amount; i++) {
            uint256 tokenId = super._mintRedemption(msg.sender);
            emit Unveil(_mintNumbers[tokenId], _creator, tokenId);
        }
    }

    /**
     * @dev See {IRedeemBase-redeemable}.
     */
    function redeemable(address contract_, uint256 tokenId) public view virtual override returns(bool) {
        require(_active, "Inactive");
        return super.redeemable(contract_, tokenId);
    }

    /**
     * @dev See {ERC721RedeemBase-_mintRedemption}
     */
    function _mintRedemption(address to) internal override returns(uint256) {
       // Burn redemptions will result in two crystals
       uint256 tokenId;
       tokenId = super._mintRedemption(to);
       emit Unveil(_mintNumbers[tokenId], _creator, tokenId);
       tokenId = super._mintRedemption(to);
       emit Unveil(_mintNumbers[tokenId], _creator, tokenId);
       return 0;
    }

    /**
     * @dev See {ICreatorExtensionTokenURI-tokenURI}.
     */
    function tokenURI(address creator, uint256 tokenId) external view override returns (string memory) {
        require(creator == _creator && _mintNumbers[tokenId] != 0, "Invalid token");
        return string(abi.encodePacked(_tokenURIPrefix, _mintNumbers[tokenId].toString()));
    }
}

// File: @manifoldxyz/libraries-solidity/contracts/access/AdminControl.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "./IAdminControl.sol";

abstract contract AdminControl is Ownable, IAdminControl, ERC165 {
    using EnumerableSet for EnumerableSet.AddressSet;

    // Track registered admins
    EnumerableSet.AddressSet private _admins;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return interfaceId == type(IAdminControl).interfaceId
            || super.supportsInterface(interfaceId);
    }

    /**
     * @dev Only allows approved admins to call the specified function
     */
    modifier adminRequired() {
        require(owner() == msg.sender || _admins.contains(msg.sender), "AdminControl: Must be owner or admin");
        _;
    }   

    /**
     * @dev See {IAdminControl-getAdmins}.
     */
    function getAdmins() external view override returns (address[] memory admins) {
        admins = new address[](_admins.length());
        for (uint i = 0; i < _admins.length(); i++) {
            admins[i] = _admins.at(i);
        }
        return admins;
    }

    /**
     * @dev See {IAdminControl-approveAdmin}.
     */
    function approveAdmin(address admin) external override onlyOwner {
        if (!_admins.contains(admin)) {
            emit AdminApproved(admin, msg.sender);
            _admins.add(admin);
        }
    }

    /**
     * @dev See {IAdminControl-revokeAdmin}.
     */
    function revokeAdmin(address admin) external override onlyOwner {
        if (_admins.contains(admin)) {
            emit AdminRevoked(admin, msg.sender);
            _admins.remove(admin);
        }
    }

    /**
     * @dev See {IAdminControl-isAdmin}.
     */
    function isAdmin(address admin) public override view returns (bool) {
        return (owner() == admin || _admins.contains(admin));
    }

}
// File: contracts/core/IERC721CreatorCore.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "./ICreatorCore.sol";

/**
 * @dev Core ERC721 creator interface
 */
interface IERC721CreatorCore is ICreatorCore {

    /**
     * @dev mint a token with no extension. Can only be called by an admin.
     * Returns tokenId minted
     */
    function mintBase(address to) external returns (uint256);

    /**
     * @dev mint a token with no extension. Can only be called by an admin.
     * Returns tokenId minted
     */
    function mintBase(address to, string calldata uri) external returns (uint256);

    /**
     * @dev batch mint a token with no extension. Can only be called by an admin.
     * Returns tokenId minted
     */
    function mintBaseBatch(address to, uint16 count) external returns (uint256[] memory);

    /**
     * @dev batch mint a token with no extension. Can only be called by an admin.
     * Returns tokenId minted
     */
    function mintBaseBatch(address to, string[] calldata uris) external returns (uint256[] memory);

    /**
     * @dev mint a token. Can only be called by a registered extension.
     * Returns tokenId minted
     */
    function mintExtension(address to) external returns (uint256);

    /**
     * @dev mint a token. Can only be called by a registered extension.
     * Returns tokenId minted
     */
    function mintExtension(address to, string calldata uri) external returns (uint256);

    /**
     * @dev batch mint a token. Can only be called by a registered extension.
     * Returns tokenIds minted
     */
    function mintExtensionBatch(address to, uint16 count) external returns (uint256[] memory);

    /**
     * @dev batch mint a token. Can only be called by a registered extension.
     * Returns tokenId minted
     */
    function mintExtensionBatch(address to, string[] calldata uris) external returns (uint256[] memory);

    /**
     * @dev burn a token. Can only be called by token owner or approved address.
     * On burn, calls back to the registered extension's onBurn method
     */
    function burn(uint256 tokenId) external;

}
// File: contracts/extensions/ICreatorExtensionTokenURI.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Implement this if you want your extension to have overloadable URI's
 */
interface ICreatorExtensionTokenURI is IERC165 {

    /**
     * Get the uri for a given creator/tokenId
     */
    function tokenURI(address creator, uint256 tokenId) external view returns (string memory);
}

// File: contracts/redeem/ERC721BurnRedeem.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/utils/introspection/ERC165Checker.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

import "../core/IERC721CreatorCore.sol";

import "./ERC721RedeemBase.sol";
import "./IERC721BurnRedeem.sol";

/**
 * @dev Burn NFT's to receive another lazy minted NFT
 */
contract ERC721BurnRedeem is ReentrancyGuard, ERC721RedeemBase, IERC721BurnRedeem {
    using EnumerableSet for EnumerableSet.UintSet;

    mapping (address => mapping (uint256 => address)) private _recoverableERC721;

    constructor(address creator, uint16 redemptionRate, uint16 redemptionMax) ERC721RedeemBase(creator, redemptionRate, redemptionMax) {}

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721RedeemBase, IERC165) returns (bool) {
        return interfaceId == type(IERC721BurnRedeem).interfaceId
            || super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721BurnRedeem-setERC721Recoverable}
     */
    function setERC721Recoverable(address contract_, uint256 tokenId, address recoverer) external virtual override adminRequired {
        require(ERC165Checker.supportsInterface(contract_, type(IERC721).interfaceId), "BurnRedeem: Must implement IERC721");
        _recoverableERC721[contract_][tokenId] = recoverer;
    }

    /**
     * @dev See {IERC721BurnRedeem-recoverERC721}
     */
    function recoverERC721(address contract_, uint256 tokenId) external virtual override {
        address recoverer = _recoverableERC721[contract_][tokenId];
        require(recoverer == msg.sender, "BurnRedeem: Permission denied");
        IERC721(contract_).safeTransferFrom(address(this), msg.sender, tokenId);
    }

    /**
     * @dev See {IERC721BurnRedeem-redeemERC721}
     */
    function redeemERC721(address[] calldata contracts, uint256[] calldata tokenIds) external virtual override nonReentrant {
        require(contracts.length == tokenIds.length, "BurnRedeem: Invalid parameters");
        require(contracts.length == _redemptionRate, "BurnRedeem: Incorrect number of NFTs being redeemed");

        // Attempt Burn
        for (uint i=0; i<contracts.length; i++) {
            // Check that we can burn
            require(redeemable(contracts[i], tokenIds[i]), "BurnRedeem: Invalid NFT");

            try IERC721(contracts[i]).ownerOf(tokenIds[i]) returns (address ownerOfAddress) {
                require(ownerOfAddress == msg.sender, "BurnRedeem: Caller must own NFTs");
            } catch (bytes memory) {
                revert("BurnRedeem: Bad token contract");
            }

            try IERC721(contracts[i]).getApproved(tokenIds[i]) returns (address approvedAddress) {
                require(approvedAddress == address(this), "BurnRedeem: Contract must be given approval to burn NFT");
            } catch (bytes memory) {
                revert("BurnRedeem: Bad token contract");
            }
            

            // Then burn
            try IERC721(contracts[i]).transferFrom(msg.sender, address(0xdEaD), tokenIds[i]) {
            } catch (bytes memory) {
                revert("BurnRedeem: Burn failure");
            }
        }

        // Mint reward
        _mintRedemption(msg.sender);
    }

    /**
     * @dev See {IERC721Receiver-onERC721Received}.
     */
    function onERC721Received(address, address from, uint256 tokenId, bytes calldata data) external override nonReentrant returns (bytes4) {
        require(redeemable(msg.sender, tokenId), "BurnRedeem: Invalid NFT");
        require(_redemptionRate == 1, "BurnRedeem: Can only allow direct receiving of redemptions of 1 NFT");
        
        
        // Burn it
        try IERC721(msg.sender).safeTransferFrom(address(this), address(0xdEaD), tokenId, data) {
        } catch (bytes memory) {
            revert("BurnRedeem: Burn failure");
        }

        // Mint reward
        _mintRedemption(from);

        return this.onERC721Received.selector;
    }


    /**
     * @dev See {IERC1155Receiver-onERC1155Received}.
     */
    function onERC1155Received(
        address,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external override nonReentrant returns(bytes4) {
        require(redeemable(msg.sender, id), "BurnRedeem: Invalid NFT");
        require(value == _redemptionRate, "BurnRedeem: Incorrect number of NFTs being redeemed");

        // Burn it
        try IERC1155(msg.sender).safeTransferFrom(address(this), address(0xdEaD), id, value, data) {
        } catch (bytes memory) {
            revert("BurnRedeem: Burn failure");
        }

        // Mint reward
        _mintRedemption(from);

        return this.onERC1155Received.selector;
    }

    /**
     * @dev See {IERC1155Receiver-onERC1155BatchReceived}.
     */
    function onERC1155BatchReceived(
        address,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external override nonReentrant returns(bytes4) {
        require(ids.length == values.length, "BurnRedeem: Invalid input");

        uint256 totalValue = 0;
        for (uint i=0; i<ids.length; i++) {
            require(redeemable(msg.sender, ids[i]), "BurnRedeem: Invalid NFT");
            totalValue += values[i];
        }

        require(totalValue == _redemptionRate, "BurnRedeem: Incorrect number of NFTs being redeemed");

        // Burn it
        try IERC1155(msg.sender).safeBatchTransferFrom(address(this), address(0xdEaD), ids, values, data) {
        } catch (bytes memory) {
            revert("BurnRedeem: Burn failure");
        }

        // Mint reward
        _mintRedemption(from);

        return this.onERC1155BatchReceived.selector;
    }

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



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev String operations.
 */
library Strings {
    bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";

    /**
     * @dev Converts a `uint256` to its ASCII `string` decimal representation.
     */
    function toString(uint256 value) internal pure returns (string memory) {
        // Inspired by OraclizeAPI's implementation - MIT licence
        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol

        if (value == 0) {
            return "0";
        }
        uint256 temp = value;
        uint256 digits;
        while (temp != 0) {
            digits++;
            temp /= 10;
        }
        bytes memory buffer = new bytes(digits);
        while (value != 0) {
            digits -= 1;
            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
            value /= 10;
        }
        return string(buffer);
    }

    /**
     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
     */
    function toHexString(uint256 value) internal pure returns (string memory) {
        if (value == 0) {
            return "0x00";
        }
        uint256 temp = value;
        uint256 length = 0;
        while (temp != 0) {
            length++;
            temp >>= 8;
        }
        return toHexString(value, length);
    }

    /**
     * @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] = _HEX_SYMBOLS[value & 0xf];
            value >>= 4;
        }
        require(value == 0, "Strings: hex length insufficient");
        return string(buffer);
    }
}

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



// SPDX-License-Identifier: MIT

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/structs/EnumerableSet.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            if (lastIndex != toDeleteIndex) {
                bytes32 lastvalue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastvalue;
                // Update the index for the moved value
                set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex
            }

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        return set._values[index];
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }
}

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



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @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() {
        _setOwner(_msgSender());
    }

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

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

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// File: @manifoldxyz/libraries-solidity/contracts/access/IAdminControl.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Interface for admin control
 */
interface IAdminControl is IERC165 {

    event AdminApproved(address indexed account, address indexed sender);
    event AdminRevoked(address indexed account, address indexed sender);

    /**
     * @dev gets address of all admins
     */
    function getAdmins() external view returns (address[] memory);

    /**
     * @dev add an admin.  Can only be called by contract owner.
     */
    function approveAdmin(address admin) external;

    /**
     * @dev remove an admin.  Can only be called by contract owner.
     */
    function revokeAdmin(address admin) external;

    /**
     * @dev checks whether or not given address is an admin
     * Returns True if they are
     */
    function isAdmin(address admin) external view returns (bool);

}
// File: @openzeppelin/contracts/utils/introspection/IERC165.sol



// SPDX-License-Identifier: MIT

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/Context.sol



// SPDX-License-Identifier: MIT

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: contracts/core/ICreatorCore.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/IERC165.sol";

/**
 * @dev Core creator interface
 */
interface ICreatorCore is IERC165 {

    event ExtensionRegistered(address indexed extension, address indexed sender);
    event ExtensionUnregistered(address indexed extension, address indexed sender);
    event ExtensionBlacklisted(address indexed extension, address indexed sender);
    event MintPermissionsUpdated(address indexed extension, address indexed permissions, address indexed sender);
    event RoyaltiesUpdated(uint256 indexed tokenId, address payable[] receivers, uint256[] basisPoints);
    event DefaultRoyaltiesUpdated(address payable[] receivers, uint256[] basisPoints);
    event ExtensionRoyaltiesUpdated(address indexed extension, address payable[] receivers, uint256[] basisPoints);
    event ExtensionApproveTransferUpdated(address indexed extension, bool enabled);

    /**
     * @dev gets address of all extensions
     */
    function getExtensions() external view returns (address[] memory);

    /**
     * @dev add an extension.  Can only be called by contract owner or admin.
     * extension address must point to a contract implementing ICreatorExtension.
     * Returns True if newly added, False if already added.
     */
    function registerExtension(address extension, string calldata baseURI) external;

    /**
     * @dev add an extension.  Can only be called by contract owner or admin.
     * extension address must point to a contract implementing ICreatorExtension.
     * Returns True if newly added, False if already added.
     */
    function registerExtension(address extension, string calldata baseURI, bool baseURIIdentical) external;

    /**
     * @dev add an extension.  Can only be called by contract owner or admin.
     * Returns True if removed, False if already removed.
     */
    function unregisterExtension(address extension) external;

    /**
     * @dev blacklist an extension.  Can only be called by contract owner or admin.
     * This function will destroy all ability to reference the metadata of any tokens created
     * by the specified extension. It will also unregister the extension if needed.
     * Returns True if removed, False if already removed.
     */
    function blacklistExtension(address extension) external;

    /**
     * @dev set the baseTokenURI of an extension.  Can only be called by extension.
     */
    function setBaseTokenURIExtension(string calldata uri) external;

    /**
     * @dev set the baseTokenURI of an extension.  Can only be called by extension.
     * For tokens with no uri configured, tokenURI will return "uri+tokenId"
     */
    function setBaseTokenURIExtension(string calldata uri, bool identical) external;

    /**
     * @dev set the common prefix of an extension.  Can only be called by extension.
     * If configured, and a token has a uri set, tokenURI will return "prefixURI+tokenURI"
     * Useful if you want to use ipfs/arweave
     */
    function setTokenURIPrefixExtension(string calldata prefix) external;

    /**
     * @dev set the tokenURI of a token extension.  Can only be called by extension that minted token.
     */
    function setTokenURIExtension(uint256 tokenId, string calldata uri) external;

    /**
     * @dev set the tokenURI of a token extension for multiple tokens.  Can only be called by extension that minted token.
     */
    function setTokenURIExtension(uint256[] memory tokenId, string[] calldata uri) external;

    /**
     * @dev set the baseTokenURI for tokens with no extension.  Can only be called by owner/admin.
     * For tokens with no uri configured, tokenURI will return "uri+tokenId"
     */
    function setBaseTokenURI(string calldata uri) external;

    /**
     * @dev set the common prefix for tokens with no extension.  Can only be called by owner/admin.
     * If configured, and a token has a uri set, tokenURI will return "prefixURI+tokenURI"
     * Useful if you want to use ipfs/arweave
     */
    function setTokenURIPrefix(string calldata prefix) external;

    /**
     * @dev set the tokenURI of a token with no extension.  Can only be called by owner/admin.
     */
    function setTokenURI(uint256 tokenId, string calldata uri) external;

    /**
     * @dev set the tokenURI of multiple tokens with no extension.  Can only be called by owner/admin.
     */
    function setTokenURI(uint256[] memory tokenIds, string[] calldata uris) external;

    /**
     * @dev set a permissions contract for an extension.  Used to control minting.
     */
    function setMintPermissions(address extension, address permissions) external;

    /**
     * @dev Configure so transfers of tokens created by the caller (must be extension) gets approval
     * from the extension before transferring
     */
    function setApproveTransferExtension(bool enabled) external;

    /**
     * @dev get the extension of a given token
     */
    function tokenExtension(uint256 tokenId) external view returns (address);

    /**
     * @dev Set default royalties
     */
    function setRoyalties(address payable[] calldata receivers, uint256[] calldata basisPoints) external;

    /**
     * @dev Set royalties of a token
     */
    function setRoyalties(uint256 tokenId, address payable[] calldata receivers, uint256[] calldata basisPoints) external;

    /**
     * @dev Set royalties of an extension
     */
    function setRoyaltiesExtension(address extension, address payable[] calldata receivers, uint256[] calldata basisPoints) external;

    /**
     * @dev Get royalites of a token.  Returns list of receivers and basisPoints
     */
    function getRoyalties(uint256 tokenId) external view returns (address payable[] memory, uint256[] memory);
    
    // Royalty support for various other standards
    function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory);
    function getFeeBps(uint256 tokenId) external view returns (uint[] memory);
    function getFees(uint256 tokenId) external view returns (address payable[] memory, uint256[] memory);
    function royaltyInfo(uint256 tokenId, uint256 value) external view returns (address, uint256);

}

// File: @openzeppelin/contracts/security/ReentrancyGuard.sol



// SPDX-License-Identifier: MIT

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 make 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;
    }
}

// File: @openzeppelin/contracts/token/ERC1155/IERC1155.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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

/**
 * @dev Required interface of an ERC1155 compliant contract, as defined in the
 * https://eips.ethereum.org/EIPS/eip-1155[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155 is IERC165 {
    /**
     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
     */
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);

    /**
     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
     * transfers.
     */
    event TransferBatch(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256[] ids,
        uint256[] values
    );

    /**
     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
     * `approved`.
     */
    event ApprovalForAll(address indexed account, address indexed operator, bool approved);

    /**
     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
     *
     * If an {URI} event was emitted for `id`, the standard
     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
     * returned by {IERC1155MetadataURI-uri}.
     */
    event URI(string value, uint256 indexed id);

    /**
     * @dev Returns the amount of tokens of token type `id` owned by `account`.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) external view returns (uint256);

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
        external
        view
        returns (uint256[] memory);

    /**
     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
     *
     * Emits an {ApprovalForAll} event.
     *
     * Requirements:
     *
     * - `operator` cannot be the caller.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address account, address operator) external view returns (bool);

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If the caller is not `from`, it must be have been approved to spend ``from``'s tokens via {setApprovalForAll}.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes calldata data
    ) external;

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata amounts,
        bytes calldata data
    ) external;
}

// File: @openzeppelin/contracts/token/ERC721/IERC721.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "../../utils/introspection/IERC165.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`, 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 be 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: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * 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 Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @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 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);

    /**
     * @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;
}

// File: @openzeppelin/contracts/utils/introspection/ERC165Checker.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./IERC165.sol";

/**
 * @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
            _supportsERC165Interface(account, type(IERC165).interfaceId) &&
            !_supportsERC165Interface(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) && _supportsERC165Interface(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] = _supportsERC165Interface(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 (!_supportsERC165Interface(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 _supportsERC165Interface(address account, bytes4 interfaceId) private view returns (bool) {
        bytes memory encodedParams = abi.encodeWithSelector(IERC165(account).supportsInterface.selector, interfaceId);
        (bool success, bytes memory result) = account.staticcall{gas: 30000}(encodedParams);
        if (result.length < 32) return false;
        return success && abi.decode(result, (bool));
    }
}

// File: contracts/redeem/ERC721RedeemBase.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/ERC165Checker.sol";

import "../core/IERC721CreatorCore.sol";
import "../extensions/CreatorExtension.sol";

import "../libraries/SingleCreatorExtension.sol";

import "./RedeemBase.sol";
import "./IERC721RedeemBase.sol";

/**
 * @dev Redeem NFT base logic
 */
abstract contract ERC721RedeemBase is ERC721SingleCreatorExtension, RedeemBase, CreatorExtension, IERC721RedeemBase {

    uint16 internal immutable _redemptionRate;
    uint16 private _redemptionMax;
    uint16 private _redemptionCount;
    uint256[] private _mintedTokens;
    mapping(uint256 => uint256) internal _mintNumbers;

    constructor(address creator, uint16 redemptionRate_, uint16 redemptionMax_) ERC721SingleCreatorExtension(creator) {
        require(ERC165Checker.supportsInterface(creator, type(IERC721CreatorCore).interfaceId) ||
                ERC165Checker.supportsInterface(creator, LegacyInterfaces.IERC721CreatorCore_v1), 
                "Redeem: Minting reward contract must implement IERC721CreatorCore");
        _redemptionRate = redemptionRate_;
        _redemptionMax = redemptionMax_;
    }     

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(RedeemBase, CreatorExtension, IERC165) returns (bool) {
        return interfaceId == type(IERC721RedeemBase).interfaceId || RedeemBase.supportsInterface(interfaceId) || CreatorExtension.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721RedeemBase-redemptionMax}
     */
    function redemptionMax() external view virtual override returns(uint16) {
        return _redemptionMax;
    }

    /**
     * @dev See {IERC721RedeemBase-redemptionRate}
     */
    function redemptionRate() external view virtual override returns(uint16) {
        return _redemptionRate;
    }

    /**
     * @dev See {IERC721RedeemBase-redemptionRemaining}
     */
    function redemptionRemaining() public view virtual override returns(uint16) {
        return _redemptionMax-_redemptionCount;
    }

    /**
     * @dev See {IERC721RedeemBase-mintNumber}.
     */
    function mintNumber(uint256 tokenId) external view virtual override returns(uint256) {
        return _mintNumbers[tokenId];
    }

    /**
     * @dev See {IERC721RedeemBase-mintedTokens}.
     */
    function mintedTokens() external view override returns(uint256[] memory) {
        return _mintedTokens;
    }

    /**
     * @dev mint token that was redeemed for
     */
    function _mintRedemption(address to) internal virtual returns (uint256) {
        require(_redemptionCount < _redemptionMax, "Redeem: No redemptions remaining");
        _redemptionCount++;
        
        // Mint token
        uint256 tokenId = _mint(to, _redemptionCount);

        _mintedTokens.push(tokenId);
        _mintNumbers[tokenId] = _redemptionCount;
        return tokenId;
    }

    /**
     * @dev override if you want to perform different mint functionality
     */
    function _mint(address to, uint16) internal returns (uint256) {
        return IERC721CreatorCore(_creator).mintExtension(to);
    }

}
// File: contracts/redeem/IERC721BurnRedeem.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol";

import "./IERC721RedeemBase.sol";

/**
 * @dev Burn NFT's to receive another lazy minted NFT
 */
interface IERC721BurnRedeem is IERC721RedeemBase, IERC1155Receiver, IERC721Receiver {

    /**
     * @dev Enable recovery of a given token. Can only be called by contract owner/admin.
     * This is a special function used in case someone accidentally sends a token to this contract.
     */
    function setERC721Recoverable(address contract_, uint256 tokenId, address recoverer) external;

    /**
     * @dev Recover a token.  Returns it to the recoverer set by setERC721Recoverable
     * This is a special function used in case someone accidentally sends a token to this contract.
     */
    function recoverERC721(address contract_, uint256 tokenId) external;

    /**
     * @dev Redeem ERC721 tokens for redemption reward NFT.
     * Requires the user to grant approval beforehand by calling contract's 'approve' function.
     * If the it cannot redeem the NFT, it will clear approvals
     */
    function redeemERC721(address[] calldata contracts, uint256[] calldata tokenIds) external;

}
// File: contracts/extensions/CreatorExtension.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/ERC165.sol";

/**
 * @dev Base creator extension variables
 */
abstract contract CreatorExtension is ERC165 {

    /**
     * @dev Legacy extension interface identifiers
     *
     * {IERC165-supportsInterface} needs to return 'true' for this interface
     * in order backwards compatible with older creator contracts
     */
    bytes4 constant internal LEGACY_EXTENSION_INTERFACE = 0x7005caad;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165) returns (bool) {
        return interfaceId == LEGACY_EXTENSION_INTERFACE
            || super.supportsInterface(interfaceId);
    }
    
}
// File: contracts/libraries/SingleCreatorExtension.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/ERC165Checker.sol";
import "../core/IERC721CreatorCore.sol";

import "./LegacyInterfaces.sol";

abstract contract SingleCreatorBase {
    address internal _creator;
}

/**
 * @dev Extension that only uses a single creator contract instance
 */
abstract contract ERC721SingleCreatorExtension is SingleCreatorBase {

    constructor(address creator) {
        require(ERC165Checker.supportsInterface(creator, type(IERC721CreatorCore).interfaceId) ||
                ERC165Checker.supportsInterface(creator, LegacyInterfaces.IERC721CreatorCore_v1), 
                "Redeem: Minting reward contract must implement IERC721CreatorCore");
        _creator = creator;
    }

}
// File: contracts/redeem/RedeemBase.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@openzeppelin/contracts/utils/introspection/ERC165Checker.sol";
import "@openzeppelin/contracts/utils/structs/EnumerableSet.sol";

import "@manifoldxyz/libraries-solidity/contracts/access/AdminControl.sol";

import "./IRedeemBase.sol";

struct range{
   uint256 min;
   uint256 max;
}

/**
 * @dev Burn NFT's to receive another lazy minted NFT
 */
abstract contract RedeemBase is AdminControl, IRedeemBase {
     using EnumerableSet for EnumerableSet.UintSet;

     // approved contract tokens
    mapping(address => bool) private _approvedContracts;

    // approved specific tokens
    mapping(address => EnumerableSet.UintSet) private _approvedTokens;
    mapping(address => range[]) private _approvedTokenRange;
     
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(AdminControl, IERC165) returns (bool) {
        return interfaceId == type(IRedeemBase).interfaceId
            || super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IRedeemBase-updateApprovedContracts}
     */
    function updateApprovedContracts(address[] memory contracts, bool[] memory approved) public virtual override adminRequired {
        require(contracts.length == approved.length, "Redeem: Invalid input parameters");
        for (uint i=0; i < contracts.length; i++) {
            _approvedContracts[contracts[i]] = approved[i];
        }
        emit UpdateApprovedContracts(contracts, approved);
    }
    
    /**
     * @dev See {IRedeemBase-updateApprovedTokens}
     */
    function updateApprovedTokens(address contract_, uint256[] memory tokenIds, bool[] memory approved) public virtual override adminRequired {
        require(tokenIds.length == approved.length, "Redeem: Invalid input parameters");

        for (uint i=0; i < tokenIds.length; i++) {
            if (approved[i] && !_approvedTokens[contract_].contains(tokenIds[i])) {
                _approvedTokens[contract_].add(tokenIds[i]);
            } else if (!approved[i] && _approvedTokens[contract_].contains(tokenIds[i])) {
                _approvedTokens[contract_].remove(tokenIds[i]);
            }
        }
        emit UpdateApprovedTokens(contract_, tokenIds, approved);
    }

    /**
     * @dev See {IRedeemBase-updateApprovedTokenRanges}
     */
    function updateApprovedTokenRanges(address contract_, uint256[] memory minTokenIds, uint256[] memory maxTokenIds) public virtual override adminRequired {
        require(minTokenIds.length == maxTokenIds.length, "Redeem: Invalid input parameters");
        
        uint existingRangesLength = _approvedTokenRange[contract_].length;
        for (uint i=0; i < existingRangesLength; i++) {
            _approvedTokenRange[contract_][i].min = 0;
            _approvedTokenRange[contract_][i].max = 0;
        }
        
        for (uint i=0; i < minTokenIds.length; i++) {
            require(minTokenIds[i] < maxTokenIds[i], "Redeem: min must be less than max");
            if (i < existingRangesLength) {
                _approvedTokenRange[contract_][i].min = minTokenIds[i];
                _approvedTokenRange[contract_][i].max = maxTokenIds[i];
            } else {
                _approvedTokenRange[contract_].push(range(minTokenIds[i], maxTokenIds[i]));
            }
        }
        emit UpdateApprovedTokenRanges(contract_, minTokenIds, maxTokenIds);
    }

    /**
     * @dev See {IRedeemBase-redeemable}
     */    
    function redeemable(address contract_, uint256 tokenId) public view virtual override returns(bool) {
         if (_approvedContracts[contract_]) {
             return true;
         }
         if (_approvedTokens[contract_].contains(tokenId)) {
             return true;
         }
         if (_approvedTokenRange[contract_].length > 0) {
             for (uint i=0; i < _approvedTokenRange[contract_].length; i++) {
                 if (_approvedTokenRange[contract_][i].max != 0 && tokenId >= _approvedTokenRange[contract_][i].min && tokenId <= _approvedTokenRange[contract_][i].max) {
                     return true;
                 }
             }
         }
         return false;
    }


}
// File: contracts/redeem/IERC721RedeemBase.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "./IRedeemBase.sol";

/**
 * @dev Base redemption interface
 */
interface IERC721RedeemBase is IRedeemBase {
    /**
     * @dev Get the max number of redemptions
     */
    function redemptionMax() external view returns(uint16);

    /**
     * @dev Get the redemption rate
     */
    function redemptionRate() external view returns(uint16);

    /**
     * @dev Get number of redemptions left
     */
    function redemptionRemaining() external view returns(uint16);

    /**
     * @dev Get the mint number of a created token id
     */
    function mintNumber(uint256 tokenId) external view returns(uint256);

    /**
     * @dev Get list of all minted tokens
     */
    function mintedTokens() external view returns(uint256[] memory);

}
// File: contracts/libraries/LegacyInterfaces.sol



// SPDX-License-Identifier: BSD-4-Clause

pragma solidity ^0.8.0;

/// @author: manifold.xyz

/**
 * Library of legacy interface constants
 */
library LegacyInterfaces {

    // LEGACY ERC721CreatorCore interface
    bytes4 internal constant IERC721CreatorCore_v1 = 0x478c8530;

}

// File: contracts/redeem/IRedeemBase.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

/// @author: manifold.xyz

import "@manifoldxyz/libraries-solidity/contracts/access/IAdminControl.sol";

/**
 * @dev Base redemption interface
 */
interface IRedeemBase is IAdminControl {

    event UpdateApprovedContracts(address[] contracts, bool[] approved);
    event UpdateApprovedTokens(address contract_, uint256[] tokenIds, bool[] approved);
    event UpdateApprovedTokenRanges(address contract_, uint256[] minTokenIds, uint256[] maxTokenIds);

    /**
     * @dev Update approved contracts that can be used to redeem. Can only be called by contract owner/admin.
     */
    function updateApprovedContracts(address[] calldata contracts, bool[] calldata approved) external;

    /**
     * @dev Update approved tokens that can be used to redeem. Can only be called by contract owner/admin.
     */
    function updateApprovedTokens(address contract_, uint256[] calldata tokenIds, bool[] calldata approved) external;

    /**
     * @dev Update approved token ranges that can be used to redeem. Can only be called by contract owner/admin.
     * Clears out old ranges
     */
    function updateApprovedTokenRanges(address contract_, uint256[] calldata minTokenIds, uint256[] calldata maxTokenIds) external;

    /**
     * @dev Check if an NFT is redeemable
     */
    function redeemable(address contract_, uint256 tokenId) external view returns(bool);

}
// File: @openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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

/**
 * @dev _Available since v3.1._
 */
interface IERC1155Receiver is IERC165 {
    /**
        @dev Handles the receipt of a single ERC1155 token type. This function is
        called at the end of a `safeTransferFrom` after the balance has been updated.
        To accept the transfer, this must return
        `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
        (i.e. 0xf23a6e61, or its own function selector).
        @param operator The address which initiated the transfer (i.e. msg.sender)
        @param from The address which previously owned the token
        @param id The ID of the token being transferred
        @param value The amount of tokens being transferred
        @param data Additional data with no specified format
        @return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
    */
    function onERC1155Received(
        address operator,
        address from,
        uint256 id,
        uint256 value,
        bytes calldata data
    ) external returns (bytes4);

    /**
        @dev Handles the receipt of a multiple ERC1155 token types. This function
        is called at the end of a `safeBatchTransferFrom` after the balances have
        been updated. To accept the transfer(s), this must return
        `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
        (i.e. 0xbc197c81, or its own function selector).
        @param operator The address which initiated the batch transfer (i.e. msg.sender)
        @param from The address which previously owned the token
        @param ids An array containing ids of each token being transferred (order and length must match values array)
        @param values An array containing amounts of each token being transferred (order and length must match ids array)
        @param data Additional data with no specified format
        @return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
    */
    function onERC1155BatchReceived(
        address operator,
        address from,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external returns (bytes4);
}

// File: @openzeppelin/contracts/token/ERC721/IERC721Receiver.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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