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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

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() {
        _transferOwnership(_msgSender());
    }

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

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

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

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

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

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

// File: @openzeppelin/contracts/interfaces/IERC2981.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (interfaces/IERC2981.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Interface for the NFT Royalty Standard.
 *
 * A standardized way to retrieve royalty payment information for non-fungible tokens (NFTs) to enable universal
 * support for royalty payments across all NFT marketplaces and ecosystem participants.
 *
 * _Available since v4.5._
 */
interface IERC2981 is IERC165 {
    /**
     * @dev Returns how much royalty is owed and to whom, based on a sale price that may be denominated in any unit of
     * exchange. The royalty amount is denominated and should be paid in that same unit of exchange.
     */
    function royaltyInfo(uint256 tokenId, uint256 salePrice)
        external
        view
        returns (address receiver, uint256 royaltyAmount);
}

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



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

pragma solidity ^0.8.0;

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

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

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

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

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

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

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

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC1155/ERC1155.sol)

pragma solidity ^0.8.0;

import "./IERC1155.sol";
import "./IERC1155Receiver.sol";
import "./extensions/IERC1155MetadataURI.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/introspection/ERC165.sol";

/**
 * @dev Implementation of the basic standard multi-token.
 * See https://eips.ethereum.org/EIPS/eip-1155
 * Originally based on code by Enjin: https://github.com/enjin/erc-1155
 *
 * _Available since v3.1._
 */
contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {
    using Address for address;

    // Mapping from token ID to account balances
    mapping(uint256 => mapping(address => uint256)) private _balances;

    // Mapping from account to operator approvals
    mapping(address => mapping(address => bool)) private _operatorApprovals;

    // Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json
    string private _uri;

    /**
     * @dev See {_setURI}.
     */
    constructor(string memory uri_) {
        _setURI(uri_);
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return
            interfaceId == type(IERC1155).interfaceId ||
            interfaceId == type(IERC1155MetadataURI).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC1155MetadataURI-uri}.
     *
     * This implementation returns the same URI for *all* token types. It relies
     * on the token type ID substitution mechanism
     * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
     *
     * Clients calling this function must replace the `\{id\}` substring with the
     * actual token type ID.
     */
    function uri(uint256) public view virtual override returns (string memory) {
        return _uri;
    }

    /**
     * @dev See {IERC1155-balanceOf}.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {
        require(account != address(0), "ERC1155: address zero is not a valid owner");
        return _balances[id][account];
    }

    /**
     * @dev See {IERC1155-balanceOfBatch}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] memory accounts, uint256[] memory ids)
        public
        view
        virtual
        override
        returns (uint256[] memory)
    {
        require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch");

        uint256[] memory batchBalances = new uint256[](accounts.length);

        for (uint256 i = 0; i < accounts.length; ++i) {
            batchBalances[i] = balanceOf(accounts[i], ids[i]);
        }

        return batchBalances;
    }

    /**
     * @dev See {IERC1155-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        _setApprovalForAll(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC1155-isApprovedForAll}.
     */
    function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {
        return _operatorApprovals[account][operator];
    }

    /**
     * @dev See {IERC1155-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) public virtual override {
        require(
            from == _msgSender() || isApprovedForAll(from, _msgSender()),
            "ERC1155: caller is not token owner or approved"
        );
        _safeTransferFrom(from, to, id, amount, data);
    }

    /**
     * @dev See {IERC1155-safeBatchTransferFrom}.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) public virtual override {
        require(
            from == _msgSender() || isApprovedForAll(from, _msgSender()),
            "ERC1155: caller is not token owner or approved"
        );
        _safeBatchTransferFrom(from, to, ids, amounts, data);
    }

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `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 memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: transfer to the zero address");

        address operator = _msgSender();
        uint256[] memory ids = _asSingletonArray(id);
        uint256[] memory amounts = _asSingletonArray(amount);

        _beforeTokenTransfer(operator, from, to, ids, amounts, data);

        uint256 fromBalance = _balances[id][from];
        require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
        unchecked {
            _balances[id][from] = fromBalance - amount;
        }
        _balances[id][to] += amount;

        emit TransferSingle(operator, from, to, id, amount);

        _afterTokenTransfer(operator, from, to, ids, amounts, data);

        _doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - 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[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
        require(to != address(0), "ERC1155: transfer to the zero address");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, to, ids, amounts, data);

        for (uint256 i = 0; i < ids.length; ++i) {
            uint256 id = ids[i];
            uint256 amount = amounts[i];

            uint256 fromBalance = _balances[id][from];
            require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
            unchecked {
                _balances[id][from] = fromBalance - amount;
            }
            _balances[id][to] += amount;
        }

        emit TransferBatch(operator, from, to, ids, amounts);

        _afterTokenTransfer(operator, from, to, ids, amounts, data);

        _doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data);
    }

    /**
     * @dev Sets a new URI for all token types, by relying on the token type ID
     * substitution mechanism
     * https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
     *
     * By this mechanism, any occurrence of the `\{id\}` substring in either the
     * URI or any of the amounts in the JSON file at said URI will be replaced by
     * clients with the token type ID.
     *
     * For example, the `https://token-cdn-domain/\{id\}.json` URI would be
     * interpreted by clients as
     * `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json`
     * for token type ID 0x4cce0.
     *
     * See {uri}.
     *
     * Because these URIs cannot be meaningfully represented by the {URI} event,
     * this function emits no events.
     */
    function _setURI(string memory newuri) internal virtual {
        _uri = newuri;
    }

    /**
     * @dev Creates `amount` tokens of token type `id`, and assigns them to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function _mint(
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: mint to the zero address");

        address operator = _msgSender();
        uint256[] memory ids = _asSingletonArray(id);
        uint256[] memory amounts = _asSingletonArray(amount);

        _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);

        _balances[id][to] += amount;
        emit TransferSingle(operator, address(0), to, id, amount);

        _afterTokenTransfer(operator, address(0), to, ids, amounts, data);

        _doSafeTransferAcceptanceCheck(operator, address(0), to, id, amount, data);
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}.
     *
     * 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 _mintBatch(
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {
        require(to != address(0), "ERC1155: mint to the zero address");
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, address(0), to, ids, amounts, data);

        for (uint256 i = 0; i < ids.length; i++) {
            _balances[ids[i]][to] += amounts[i];
        }

        emit TransferBatch(operator, address(0), to, ids, amounts);

        _afterTokenTransfer(operator, address(0), to, ids, amounts, data);

        _doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);
    }

    /**
     * @dev Destroys `amount` tokens of token type `id` from `from`
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `from` must have at least `amount` tokens of token type `id`.
     */
    function _burn(
        address from,
        uint256 id,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC1155: burn from the zero address");

        address operator = _msgSender();
        uint256[] memory ids = _asSingletonArray(id);
        uint256[] memory amounts = _asSingletonArray(amount);

        _beforeTokenTransfer(operator, from, address(0), ids, amounts, "");

        uint256 fromBalance = _balances[id][from];
        require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
        unchecked {
            _balances[id][from] = fromBalance - amount;
        }

        emit TransferSingle(operator, from, address(0), id, amount);

        _afterTokenTransfer(operator, from, address(0), ids, amounts, "");
    }

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     */
    function _burnBatch(
        address from,
        uint256[] memory ids,
        uint256[] memory amounts
    ) internal virtual {
        require(from != address(0), "ERC1155: burn from the zero address");
        require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");

        address operator = _msgSender();

        _beforeTokenTransfer(operator, from, address(0), ids, amounts, "");

        for (uint256 i = 0; i < ids.length; i++) {
            uint256 id = ids[i];
            uint256 amount = amounts[i];

            uint256 fromBalance = _balances[id][from];
            require(fromBalance >= amount, "ERC1155: burn amount exceeds balance");
            unchecked {
                _balances[id][from] = fromBalance - amount;
            }
        }

        emit TransferBatch(operator, from, address(0), ids, amounts);

        _afterTokenTransfer(operator, from, address(0), ids, amounts, "");
    }

    /**
     * @dev Approve `operator` to operate on all of `owner` tokens
     *
     * Emits an {ApprovalForAll} event.
     */
    function _setApprovalForAll(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        require(owner != operator, "ERC1155: setting approval status for self");
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning, as well as batched variants.
     *
     * The same hook is called on both single and batched variants. For single
     * transfers, the length of the `ids` and `amounts` arrays will be 1.
     *
     * Calling conditions (for each `id` and `amount` pair):
     *
     * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * of token type `id` will be  transferred to `to`.
     * - When `from` is zero, `amount` tokens of token type `id` will be minted
     * for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`
     * will be burned.
     * - `from` and `to` are never both zero.
     * - `ids` and `amounts` have the same, non-zero length.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {}

    /**
     * @dev Hook that is called after any token transfer. This includes minting
     * and burning, as well as batched variants.
     *
     * The same hook is called on both single and batched variants. For single
     * transfers, the length of the `id` and `amount` arrays will be 1.
     *
     * Calling conditions (for each `id` and `amount` pair):
     *
     * - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * of token type `id` will be  transferred to `to`.
     * - When `from` is zero, `amount` tokens of token type `id` will be minted
     * for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens of token type `id`
     * will be burned.
     * - `from` and `to` are never both zero.
     * - `ids` and `amounts` have the same, non-zero length.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual {}

    function _doSafeTransferAcceptanceCheck(
        address operator,
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes memory data
    ) private {
        if (to.isContract()) {
            try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) {
                if (response != IERC1155Receiver.onERC1155Received.selector) {
                    revert("ERC1155: ERC1155Receiver rejected tokens");
                }
            } catch Error(string memory reason) {
                revert(reason);
            } catch {
                revert("ERC1155: transfer to non-ERC1155Receiver implementer");
            }
        }
    }

    function _doSafeBatchTransferAcceptanceCheck(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) private {
        if (to.isContract()) {
            try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns (
                bytes4 response
            ) {
                if (response != IERC1155Receiver.onERC1155BatchReceived.selector) {
                    revert("ERC1155: ERC1155Receiver rejected tokens");
                }
            } catch Error(string memory reason) {
                revert(reason);
            } catch {
                revert("ERC1155: transfer to non-ERC1155Receiver implementer");
            }
        }
    }

    function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) {
        uint256[] memory array = new uint256[](1);
        array[0] = element;

        return array;
    }
}

// File: @openzeppelin/contracts/token/ERC1155/extensions/ERC1155Supply.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC1155/extensions/ERC1155Supply.sol)

pragma solidity ^0.8.0;

import "../ERC1155.sol";

/**
 * @dev Extension of ERC1155 that adds tracking of total supply per id.
 *
 * Useful for scenarios where Fungible and Non-fungible tokens have to be
 * clearly identified. Note: While a totalSupply of 1 might mean the
 * corresponding is an NFT, there is no guarantees that no other token with the
 * same id are not going to be minted.
 */
abstract contract ERC1155Supply is ERC1155 {
    mapping(uint256 => uint256) private _totalSupply;

    /**
     * @dev Total amount of tokens in with a given id.
     */
    function totalSupply(uint256 id) public view virtual returns (uint256) {
        return _totalSupply[id];
    }

    /**
     * @dev Indicates whether any token exist with a given id, or not.
     */
    function exists(uint256 id) public view virtual returns (bool) {
        return ERC1155Supply.totalSupply(id) > 0;
    }

    /**
     * @dev See {ERC1155-_beforeTokenTransfer}.
     */
    function _beforeTokenTransfer(
        address operator,
        address from,
        address to,
        uint256[] memory ids,
        uint256[] memory amounts,
        bytes memory data
    ) internal virtual override {
        super._beforeTokenTransfer(operator, from, to, ids, amounts, data);

        if (from == address(0)) {
            for (uint256 i = 0; i < ids.length; ++i) {
                _totalSupply[ids[i]] += amounts[i];
            }
        }

        if (to == address(0)) {
            for (uint256 i = 0; i < ids.length; ++i) {
                uint256 id = ids[i];
                uint256 amount = amounts[i];
                uint256 supply = _totalSupply[id];
                require(supply >= amount, "ERC1155: burn amount exceeds totalSupply");
                unchecked {
                    _totalSupply[id] = supply - amount;
                }
            }
        }
    }
}

// File: @openzeppelin/contracts/token/ERC1155/extensions/IERC1155MetadataURI.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC1155/extensions/IERC1155MetadataURI.sol)

pragma solidity ^0.8.0;

import "../IERC1155.sol";

/**
 * @dev Interface of the optional ERC1155MetadataExtension interface, as defined
 * in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155MetadataURI is IERC1155 {
    /**
     * @dev Returns the URI for token type `id`.
     *
     * If the `\{id\}` substring is present in the URI, it must be replaced by
     * clients with the actual token type ID.
     */
    function uri(uint256 id) external view returns (string memory);
}

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)

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 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/ERC1155/IERC1155Receiver.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)

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.
     *
     * NOTE: 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.
     *
     * NOTE: 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/ERC20/ERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _totalSupply -= amount;
        }

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}

// File: @openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol)

pragma solidity ^0.8.0;

import "../ERC20.sol";
import "../../../utils/Context.sol";

/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        _spendAllowance(account, _msgSender(), amount);
        _burn(account, amount);
    }
}

// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

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

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

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



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

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

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

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

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

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

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

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

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

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

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

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

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

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

// 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/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/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/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/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: contracts/Carbon21.sol



/* 
 *   Carbon21 Project - For real Diamond Hands
 *
 *   Learn more: https://carbon21.io
 */


// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";

contract Carbon21 is ERC20, ERC20Burnable {
    uint256 public originalSupply;

    event Burn(address indexed burner, uint256 amount);

    constructor() ERC20("Carbon21", "C21") {
        originalSupply = 210e6 * 10**decimals(); // Initial supply of 210 million $C21
        _mint(msg.sender, originalSupply);
    }

    function burn(uint256 amount) public virtual override {
        super.burn(amount);
        emit Burn(_msgSender(), amount);
    }

    function burnFrom(address account, uint256 amount) public virtual override {
        super.burnFrom(account, amount);
        emit Burn(account, amount);
    }
}
// File: contracts/DiamondCollection.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "./Carbon21.sol";
import "@openzeppelin/contracts/token/ERC1155/extensions/ERC1155Supply.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/interfaces/IERC2981.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import "@openzeppelin/contracts/utils/Strings.sol";

contract DiamondCollection is ERC1155Supply, Ownable, IERC2981 {
    using Strings for uint256;

    // Tokens
    address public carbon21Address;
    address public tokenAddress;

    // Roles
    address public minter;
    address public scientists;

    //collection details
    string public name;
    string public externalURI;
    string public symbol;
    uint256 public lockPercentage;
    uint256 public burnAmount = 0;
    string public imageURI;
    uint256 public minLockDuration = 172800; // 30 days
    uint256 public maxLockDuration = 1051200; // 6 months
    uint256 public cardMaxSupply = 100001;
    uint256 public cardMinSupply = 20;
    bool public isDirectory = true;
    uint256 public maxRoyalty = 500;

    enum ValidationStatus { Waiting, Accepted, Refused }
    
    struct Blueprint {
        uint256 nftId;
        address creator;
        string creatorName;
        uint256 maxSupply;
        uint256 minted;
        string name;
        string description;
        string fileExtension;
        string animationFileExtension;
        bool locked;
    }

    struct BlueprintProperties {
        uint256 startDate;
        uint256 endDate;
        uint256 creationDate;
        uint256 ruleSetId;
        uint256 price;
        uint256 royaltyFee;
        address royaltyRecipient;
        ValidationStatus validationStatus;
    }

    struct BlueprintAttributes {
        mapping(string => string) attributes;
        mapping(string => uint256) numericAttributes;
        mapping(string => string) numericDisplayTypes;
        mapping(string => uint256) numericMaxValues;
        string[] attributeKeys;
        string[] numericAttributeKeys;
    }

    mapping(uint256 => Blueprint) public blueprints;
    mapping(uint256 => BlueprintProperties) public blueprintProperties;
    mapping(uint256 => BlueprintAttributes) private blueprintAttributes;
    mapping(uint256 => uint256) public tokenIdToBlueprintId;
    uint256 public blueprintCount = 0;
    uint256 public nftCount = 0;

    event BlueprintCreated(uint256 blueprintId, address creator, uint256 price, uint256 maxSupply);
    event BlueprintUpdated(uint256 indexed _blueprintId);
    event BlueprintValidated(uint256 blueprintId, uint256 nftId, ValidationStatus status);
    event BlueprintRefused(uint256 blueprintId, ValidationStatus status);
    event NFTMinted(address indexed to, uint256 tokenId, uint256 amount);
    event PermanentURI(string _uri, uint256 indexed _tokenId);

    modifier onlyMinter() {
        require(msg.sender == minter, "Caller is not the minter");
        _;
    }

    modifier onlyScientists() {
        require(msg.sender == scientists, "Caller is not the scientists");
        _;
    }

    modifier isUnlocked(uint256 blueprintId) {
        require(blueprints[blueprintId].locked == false, "Blueprint is locked and can't be changed");
        _;
    }

    constructor(address _tokenAddress, string memory _imageURI, uint256 _lockPercentage, string memory _name, string memory _symbol) ERC1155("") {
        tokenAddress = _tokenAddress;
        lockPercentage = _lockPercentage;
        name = _name;
        symbol = _symbol;
        imageURI = _imageURI;
        externalURI = "https://carbon21.io/collection/original/";
        carbon21Address = 0x2C642Cd3beD9b4e4EEEc493611779f13efB502F1;

        // Initiate Minter and Scientists Roles to contract deployer
        minter = msg.sender;
        scientists = msg.sender;

        // Initiate the Genesis Card without the mapping
        blueprints[0].nftId = 0;
        blueprints[0].creator = 0x082e8a9dA4397bc24ac22FAD57CD7063DC1cd58B;
        blueprints[0].creatorName = "Onigiri";
        blueprints[0].maxSupply = type(uint256).max;
        blueprints[0].minted = 1;
        blueprints[0].name = "The Community";
        blueprints[0].description = "A memecoin is defined by its community. This card allows owners to become scientist and accept blueprints in the directory.";
        blueprints[0].fileExtension = ".jpg";
        blueprints[0].animationFileExtension = '';
        blueprints[0].locked = false;
        
        // Properties
        blueprintProperties[0].price = 0;
        blueprintProperties[0].ruleSetId = 0;
        blueprintProperties[0].creationDate = block.timestamp;
        blueprintProperties[0].startDate = 1700514000;
        blueprintProperties[0].endDate = type(uint256).max;
        blueprintProperties[0].royaltyFee = 0;
        blueprintProperties[0].royaltyRecipient = 0x082e8a9dA4397bc24ac22FAD57CD7063DC1cd58B;
        blueprintProperties[0].validationStatus = ValidationStatus.Accepted;

        // Now set the attributes for the Genesis Card
        blueprintAttributes[0].attributes["Type"] = "Genesis";
        blueprintAttributes[0].attributeKeys.push("Type");

        tokenIdToBlueprintId[0] = 0;
        _mint(msg.sender, 0, 1, "");
    }

    function setLockPercentage(uint256 _lockPercentage) external onlyScientists {
        lockPercentage = _lockPercentage;
    }

    function createBlueprint(
        address _creator,
        string memory _creatorName,
        uint256 _price,
        uint256 _maxSupply,
        uint256 _startDate,
        uint256 _endDate,
        uint256 _ruleSetId,
        string memory _name,
        string memory _description,
        string memory _fileExtension
    ) external {
        require(_startDate < _endDate || _endDate == 0, "Start date should be before end date");
        require( _maxSupply < cardMaxSupply && _maxSupply > cardMinSupply, "Supply should be in the collection range");

        if (_creator != address(0)) {
            _creator = msg.sender;
        }

        blueprintCount++;
        uint256 id = blueprintCount;

        Blueprint storage newBlueprint = blueprints[id];
        newBlueprint.creator = _creator;
        newBlueprint.creatorName = _creatorName;
        newBlueprint.maxSupply = _maxSupply;
        newBlueprint.name = _name;
        newBlueprint.description = _description;
        newBlueprint.fileExtension = _fileExtension;
        newBlueprint.animationFileExtension = _fileExtension;
        newBlueprint.locked = false;
        
        BlueprintProperties storage properties = blueprintProperties[id];
        properties.ruleSetId = _ruleSetId;
        properties.startDate = _startDate == 0 ? block.timestamp : _startDate;
        properties.endDate = _endDate == 0 ? type(uint256).max : _endDate;
        properties.creationDate = block.timestamp;
        properties.price = _price;
        properties.royaltyRecipient = _creator;
        properties.validationStatus = ValidationStatus.Waiting;

        if (burnAmount > 0) {
            Carbon21 carbonContract = Carbon21(carbon21Address);
            carbonContract.burnFrom(msg.sender, burnAmount);
        }

        emit BlueprintCreated(blueprintCount, _creator, _price, _maxSupply);
    }

    function lockBlueprint(uint256 _blueprintId) external {
        require(_blueprintId <= blueprintCount, "Blueprint does not exist");
        require(blueprintProperties[_blueprintId].validationStatus == ValidationStatus.Accepted, "Can't lock a non-validated blueprint");
        require(blueprints[_blueprintId].locked == false, "Blueprint already locked");
        require(msg.sender == blueprints[_blueprintId].creator, "Only the creator can lock the blueprint");

        blueprints[_blueprintId].locked = true;
        emit PermanentURI(uri(blueprints[_blueprintId].nftId), blueprints[_blueprintId].nftId);
    }

    function updateBlueprintSupply(uint256 _blueprintId, uint256 _maxSupply) external isUnlocked(_blueprintId) {
        checkBlueprintRequirementsForUpdate(_blueprintId, false, false);
        blueprints[_blueprintId].maxSupply = _maxSupply;
        emitBlueprintUpdated(_blueprintId);
    }

    function updateBlueprintMintRules(uint256 _blueprintId, uint256 _ruleSetId) external isUnlocked(_blueprintId) {
        checkBlueprintRequirementsForUpdate(_blueprintId, true, false);
        blueprintProperties[_blueprintId].ruleSetId = _ruleSetId;
        emitBlueprintUpdated(_blueprintId);
    }

    function updateMintTime(uint256 _blueprintId, uint256 _startDate, uint256 _endDate) external isUnlocked(_blueprintId) {
        checkBlueprintRequirementsForUpdate(_blueprintId, true, false);
        if(_startDate != 0) blueprintProperties[_blueprintId].startDate = _startDate;
        if(_endDate != 0) blueprintProperties[_blueprintId].endDate = _endDate;
        emitBlueprintUpdated(_blueprintId);
    }

    function updateBlueprintPrice(uint256 _blueprintId, uint256 _price) external isUnlocked(_blueprintId) {
        checkBlueprintRequirementsForUpdate(_blueprintId, false, false);
        blueprintProperties[_blueprintId].price = _price;
        emitBlueprintUpdated(_blueprintId);
    }

    function updateBlueprintInfo(uint256 _blueprintId, string memory _name, string memory _description, string memory _fileExtension, string memory _animationFileExtension) external isUnlocked(_blueprintId) {
        checkBlueprintRequirementsForUpdate(_blueprintId, false, true);
        blueprints[_blueprintId].name = _name;
        blueprints[_blueprintId].description = _description;
        blueprints[_blueprintId].fileExtension = _fileExtension;
        blueprints[_blueprintId].animationFileExtension = _animationFileExtension;
        emitBlueprintUpdated(_blueprintId);
    }

    function setRoyalty(uint256 tokenId, address recipient, uint256 amount) public {
        uint256 _blueprintId = getBlueprintId(tokenId);
        checkBlueprintRequirementsForUpdate(_blueprintId, false, true);
        require(amount <= maxRoyalty, "Royalty fee will exceed salePrice");
        require(recipient != address(0), "Recipient should be present");

        blueprintProperties[_blueprintId].royaltyFee = amount;
        blueprintProperties[_blueprintId].royaltyRecipient = recipient;
    }

    function setBlueprintAttributes(
        uint256 _blueprintId,
        string[] memory stringAttributeKeys,
        string[] memory attributeValues,
        string[] memory numericAttributeKeys,
        uint256[] memory numericAttributeValues,
        uint256[] memory numericAttributeMaxValues,
        string[] memory numericAttributeDisplayTypes
    ) external isUnlocked(_blueprintId) {
        checkBlueprintRequirementsForUpdate(_blueprintId, false, true);
        require(stringAttributeKeys.length == attributeValues.length, "String keys and values mismatch");
        require(numericAttributeKeys.length == numericAttributeValues.length, "Numeric keys and values mismatch");
        require(numericAttributeKeys.length == numericAttributeDisplayTypes.length, "Display types mismatch");
        require(numericAttributeKeys.length == numericAttributeMaxValues.length, "Max values mismatch");

        BlueprintAttributes storage attributes = blueprintAttributes[_blueprintId];
        // Clear existing attributes if they exist
        if (attributes.attributeKeys.length > 0 || attributes.numericAttributeKeys.length > 0) {
            for (uint i = 0; i < attributes.attributeKeys.length; i++) {
                delete attributes.attributes[attributes.attributeKeys[i]];
            }
            delete attributes.attributeKeys;

            for (uint i = 0; i < attributes.numericAttributeKeys.length; i++) {
                delete attributes.numericAttributes[attributes.numericAttributeKeys[i]];
                delete attributes.numericDisplayTypes[attributes.numericAttributeKeys[i]];
                delete attributes.numericMaxValues[attributes.numericAttributeKeys[i]];
            }
            delete attributes.numericAttributeKeys;
        }

        // Set or update string attributes
        for (uint i = 0; i < stringAttributeKeys.length; i++) {
            attributes.attributes[stringAttributeKeys[i]] = attributeValues[i];
            attributes.attributeKeys.push(stringAttributeKeys[i]);
        }

        // Set or update numeric attributes
        for (uint i = 0; i < numericAttributeKeys.length; i++) {
            attributes.numericAttributes[numericAttributeKeys[i]] = numericAttributeValues[i];
            attributes.numericDisplayTypes[numericAttributeKeys[i]] = numericAttributeDisplayTypes[i];
            attributes.numericMaxValues[numericAttributeKeys[i]] = numericAttributeMaxValues[i];
            attributes.numericAttributeKeys.push(numericAttributeKeys[i]);
        }
        emitBlueprintUpdated(_blueprintId);
    }

    function checkBlueprintRequirementsForUpdate(uint256 _blueprintId, bool scientistsAllowed, bool allowedAfterValidation) internal view {
        require(_blueprintId <= blueprintCount, "Blueprint does not exist");
        if (scientistsAllowed == false) {
            require((msg.sender == blueprints[_blueprintId].creator), "Only the creator can modify blueprint");
        } else {
            require((msg.sender == blueprints[_blueprintId].creator) || (msg.sender == scientists), "Only the creator or scientists can modify blueprint");
        }
        if (allowedAfterValidation) {
            require(blueprintProperties[_blueprintId].validationStatus != ValidationStatus.Refused, "Can't modify a refused blueprint");
        } else {
            require(blueprintProperties[_blueprintId].validationStatus == ValidationStatus.Waiting, "Can only be changed for blueprints in validation process");
        }
    }

    function emitBlueprintUpdated(uint256 _blueprintId) internal {
        emit BlueprintUpdated(_blueprintId);
        
        if (blueprintProperties[_blueprintId].validationStatus == ValidationStatus.Accepted) {
            uint256 tokenId = blueprints[_blueprintId].nftId;
            string memory newUri = uri(blueprints[_blueprintId].nftId);
            emit URI(newUri, tokenId);
        }
    }

    function validateBlueprint(uint256 _blueprintId) external onlyScientists {
        require(_blueprintId <= blueprintCount, "Blueprint does not exist");
        require(blueprintProperties[_blueprintId].validationStatus == ValidationStatus.Waiting, "Blueprint is not pending approval");

        nftCount++;
        blueprints[_blueprintId].nftId = nftCount;
        tokenIdToBlueprintId[nftCount] = _blueprintId;

        blueprintProperties[_blueprintId].validationStatus = ValidationStatus.Accepted;
        emit BlueprintValidated(_blueprintId, blueprints[_blueprintId].nftId, ValidationStatus.Accepted);
    }

    function refuseBlueprint(uint256 _blueprintId) external onlyScientists {
        require(_blueprintId <= blueprintCount, "Blueprint does not exist");
        require(blueprintProperties[_blueprintId].validationStatus == ValidationStatus.Waiting, "Blueprint is not pending approval");

        blueprintProperties[_blueprintId].validationStatus = ValidationStatus.Refused;
        emit BlueprintRefused(_blueprintId, ValidationStatus.Refused);
    }

    function getBlueprint(uint256 _blueprintId) external view returns (
        address creator,
        uint256 price,
        uint256 maxSupply,
        uint256 startDate,
        uint256 endDate,
        uint256 minted,
        uint256 ruleSetId,
        ValidationStatus validationStatus
    ) {
        require(_blueprintId <= blueprintCount, "Blueprint does not exist");
        Blueprint memory blueprint = blueprints[_blueprintId];
        BlueprintProperties memory properties = blueprintProperties[_blueprintId];
        return (
            blueprint.creator,
            properties.price,
            blueprint.maxSupply,
            properties.startDate,
            properties.endDate,
            blueprint.minted,
            properties.ruleSetId,
            properties.validationStatus
        );
    }

    function royaltyInfo(uint256 tokenId, uint256 salePrice)
        external
        view
        override
        returns (address, uint256)
    {
        uint256 _blueprintId = getBlueprintId(tokenId);
        uint256 royaltyAmount = (salePrice * blueprintProperties[_blueprintId].royaltyFee) / 10000;
        return (blueprintProperties[_blueprintId].royaltyRecipient, royaltyAmount);
    }

    function mint(address to, uint256 tokenId, uint256 amount) external onlyMinter {
        uint256 _blueprintId = getBlueprintId(tokenId);
        require(blueprintProperties[_blueprintId].validationStatus == ValidationStatus.Accepted, "TokenId does not correspond to an accepted blueprint");
        require((block.timestamp >= blueprintProperties[_blueprintId].startDate) && (block.timestamp <= blueprintProperties[_blueprintId].endDate), "Minting period not active");
        require(blueprints[_blueprintId].minted + amount <= blueprints[_blueprintId].maxSupply, "Exceeds max supply");

        blueprints[_blueprintId].minted += amount;

        _mint(to, tokenId, amount, "");
        emit NFTMinted(to, tokenId, amount);
        emit BlueprintUpdated(_blueprintId);
    }

    function uri(uint256 tokenId) public view override returns (string memory) {
        uint256 blueprintId = getBlueprintId(tokenId);

        string memory baseURI = string(abi.encodePacked(imageURI, blueprintId.toString(), blueprints[blueprintId].fileExtension));
        
        return string(abi.encodePacked(
            '{"name": "', blueprints[blueprintId].name,
            '", "description": "', blueprints[blueprintId].description,
            '", "image": "', baseURI,
            getAnimation(blueprintId),
            '", "external_url": "', externalURI, tokenId.toString(),
            '", "attributes": [',
            getAttributes(blueprintId),
            getSeriesAndCard(tokenId),
            getSupplyInfo(blueprintId, tokenId),
            getImportantDates(blueprintId),
            '{"trait_type":"Artist","value":"', blueprints[blueprintId].creatorName,'"}'
            ']}'
        ));
    }

    function getImportantDates(uint256 blueprintId) internal view returns (string memory) {
        string memory importantDates = '';
        if (blueprintProperties[blueprintId].endDate != type(uint256).max && blueprintProperties[blueprintId].endDate > block.timestamp) {
            importantDates = string(abi.encodePacked(importantDates, '{"trait_type":"Minting Ends","display_type": "date","value":', blueprintProperties[blueprintId].endDate.toString(),'},'));
        }
        importantDates = string(abi.encodePacked(importantDates, '{"trait_type":"Creation","display_type": "date","value":', blueprintProperties[blueprintId].creationDate.toString(),'},'));
        return importantDates;
    }

    function getSupplyInfo(uint256 blueprintId, uint256 tokenId) internal view returns (string memory) {
        string memory supplyInformations = '';
        supplyInformations =  string(abi.encodePacked(supplyInformations,'{"trait_type":"Supply","value":"', totalSupply(tokenId).toString(),'"},'));
        if (blueprintId == 0) {
            return string(abi.encodePacked(supplyInformations,'{"trait_type":"Max Supply","value":"Infinite"},'));
        }
        return string(abi.encodePacked(supplyInformations, '{"trait_type":"Minted","display_type":"number","value":', blueprints[blueprintId].minted.toString(),',"max_value":', blueprints[blueprintId].maxSupply.toString(),'},'));
    }

    function getAnimation(uint256 blueprintId) internal view returns (string memory) {
        string memory animationURI = '';
        if (bytes( blueprints[blueprintId].animationFileExtension).length > 0) {
            animationURI = string(abi.encodePacked('", "animation_url": "', imageURI, blueprintId.toString(),  blueprints[blueprintId].animationFileExtension));
        }
        return animationURI;
    }

    function getAttributes(uint256 blueprintId) public view returns (string memory) {
        string memory attributes = '';
        for (uint i = 0; i < blueprintAttributes[blueprintId].attributeKeys.length; i++) {
            string memory key = blueprintAttributes[blueprintId].attributeKeys[i];
            string memory value = blueprintAttributes[blueprintId].attributes[key];
            attributes = string(abi.encodePacked(attributes, '{"trait_type":"', key, '","value":"', value, '"},'));
        }
        for (uint i = 0; i < blueprintAttributes[blueprintId].numericAttributeKeys.length; i++) {
            string memory key = blueprintAttributes[blueprintId].numericAttributeKeys[i];
            uint256 value = blueprintAttributes[blueprintId].numericAttributes[key];
            string memory displayType = blueprintAttributes[blueprintId].numericDisplayTypes[key];
            uint256 maxValue = blueprintAttributes[blueprintId].numericMaxValues[key];
            attributes = string(abi.encodePacked(attributes, '{"trait_type":"', key, '","value":', value.toString(), ',"max_value":', maxValue.toString(),  ',"display_type":"', displayType, '"},'));
        }
        return attributes;
    }

    function getSeriesAndCard(uint256 tokenId) internal view returns (string memory) {
        if (tokenId == 0 || isDirectory == false) {
            return "";
        }

        uint256 series = (tokenId - 1) / 50 + 1;
        uint256 card = (tokenId - 1) % 50 + 1;

        // Convert the numbers to strings
        string memory seriesStr = series.toString();
        string memory cardStr = card.toString();
        if(bytes(seriesStr).length == 1) seriesStr = string(abi.encodePacked('0', seriesStr));
        if(bytes(cardStr).length == 1) cardStr = string(abi.encodePacked('0', cardStr));

        return string(abi.encodePacked('{"trait_type":"Series","value":"', seriesStr,'"}, {"trait_type":"Card","value":"', cardStr, '"},'));
    }

    function getBlueprintId(uint256 tokenId) public view returns (uint256) {
        if (tokenId == 0) {
            return 0;
        }
        require(tokenIdToBlueprintId[tokenId] != 0, "Invalid tokenId or blueprintId not set");
        return tokenIdToBlueprintId[tokenId];
    }

    // Scientists setters functions
    function activateDirectory(bool _isDirectory) external onlyScientists {
        isDirectory = _isDirectory;
    }
    function changeLockDuration(uint256 _maxLockDuration, uint256 _minLockDuration) external onlyScientists {
        require(_maxLockDuration > _minLockDuration, "Max lock duration should be greater than min lock duration");
        maxLockDuration = _maxLockDuration;
        minLockDuration = _minLockDuration;
    }
    function setSupplyBoundaries(uint256 _cardMinSupply, uint256 _cardMaxSupply) external onlyScientists {
        require(_cardMaxSupply > _cardMinSupply, "Max supply should be greater than min supply");
        cardMaxSupply = _cardMaxSupply;
        cardMinSupply = _cardMinSupply;
    }
    function setURIs(string memory _imageURI, string memory _externalURI) external onlyScientists {
        imageURI = _imageURI;
        externalURI = _externalURI;
    }
    function setBurnAmount(uint256 _burnAmount) external onlyScientists {
        burnAmount = _burnAmount;
    }
    function setMaxRoyalty(uint256 _maxRoyalty) external onlyScientists {
        require(_maxRoyalty <= 10000, "Max royalty should be lower than 10000");
        maxRoyalty = _maxRoyalty;
    }

    // Owner setters functions
    function setMinter(address _minter) external onlyOwner {
        minter = _minter;
    }
    function setScientists(address _scientists) external onlyOwner {
        scientists = _scientists;
    }
}
// File: contracts/LockerRoom.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "./Carbon21.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";

interface ITokenDetails {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
}

contract LockerRoom is Ownable, ReentrancyGuard {
    struct Locker {
        uint256 amount;
        uint256 lockUntil;
    }

    address public lockerManager;

    mapping(address => mapping(address => Locker[])) public lockers;
    mapping(address => address[]) public usersLockingToken;
    address[] public registeredTokens;

    event TokensLocked(address indexed user, address indexed tokenAddress, uint256 amount, uint256 lockTime, uint256 lockerIndex);
    event LockTimeAndTokensAdded(address indexed user, address indexed tokenAddress, uint256 additionalAmount, uint256 addedTime, uint256 lockerIndex);
    event TokensWithdrawn(address indexed user, address indexed tokenAddress, uint256 amount, uint256 lockerIndex);
    event TokensBurnt(address indexed user, address indexed tokenAddress, uint256 amount, uint256 lockerIndex);
    event TokenRegistered(address indexed tokenAddress);

    modifier onlyLockerManager() {
        require(msg.sender == lockerManager, "Caller is not the LockerManager");
        _;
    }

    constructor() {
        lockerManager = msg.sender;
    }

    function registerToken(address tokenAddress) external onlyLockerManager {
        require(!isRegistered(tokenAddress), "Token already registered");
        registeredTokens.push(tokenAddress);
        emit TokenRegistered(tokenAddress);
    }

    function changeLockerManager(address newLockerManager) external onlyOwner {
        lockerManager = newLockerManager;
    }

    function getRegisteredTokens() external view returns (address[] memory, string[] memory, string[] memory) {
        string[] memory names = new string[](registeredTokens.length);
        string[] memory symbols = new string[](registeredTokens.length);

        for (uint256 i = 0; i < registeredTokens.length; i++) {
            ITokenDetails token = ITokenDetails(registeredTokens[i]);
            names[i] = token.name();
            symbols[i] = token.symbol();
        }

        return (registeredTokens, names, symbols);
    }

    function isRegistered(address tokenAddress) public view returns (bool) {
        for (uint256 i = 0; i < registeredTokens.length; i++) {
            if (registeredTokens[i] == tokenAddress) {
                return true;
            }
        }
        return false;
    }

    function userAlreadyLockingToken(address tokenAddress, address user) internal view returns (bool) {
        address[] memory users = usersLockingToken[tokenAddress];
        for (uint256 i = 0; i < users.length; i++) {
            if (users[i] == user) {
                return true;
            }
        }
        return false;
    }

    function lockTokens(address tokenAddress, address minterAddress, uint256 amount, uint256 lockTimeInBlocks) external returns (uint256, uint256) {
        require(amount > 0, "Amount should be greater than 0");
        require(isRegistered(tokenAddress), "Token not registered");
        IERC20 token = IERC20(tokenAddress);
        require(token.transferFrom(minterAddress, address(this), amount), "Transfer failed");

        Locker memory newLocker;
        newLocker.amount = amount;
        newLocker.lockUntil = block.number + lockTimeInBlocks;

        lockers[minterAddress][tokenAddress].push(newLocker);

        if (!userAlreadyLockingToken(tokenAddress, minterAddress)) {
            usersLockingToken[tokenAddress].push(minterAddress);
        }
        emit TokensLocked(minterAddress, tokenAddress, amount, lockTimeInBlocks, lockers[minterAddress][tokenAddress].length - 1);

        return (newLocker.amount, lockTimeInBlocks);
    }

    function addLockAndTime(address tokenAddress, address minterAddress, uint256 additionalAmount, uint256 additionalBlocks, uint256 lockerIndex) external returns (uint256 newAmount, uint256 newLockTime) {
        require(lockerIndex < lockers[minterAddress][tokenAddress].length, "Invalid locker index");
        Locker storage locker = lockers[minterAddress][tokenAddress][lockerIndex];
        require(locker.amount > 0, "No tokens locked");
        IERC20 token = IERC20(tokenAddress);
        
        // If additionalAmount is greater than 0, transfer the tokens and add to the locker's amount
        if (additionalAmount > 0) {
            require(token.transferFrom(minterAddress, address(this), additionalAmount), "Transfer failed");
            locker.amount += additionalAmount;
        }

        // Adjust the lock time
        if (locker.lockUntil < block.number) {
            locker.lockUntil = block.number + additionalBlocks;
        } else {
            locker.lockUntil += additionalBlocks;
        }

        emit LockTimeAndTokensAdded(minterAddress, tokenAddress, additionalAmount, additionalBlocks, lockerIndex);

        return (locker.amount, (locker.lockUntil - block.number));
    }

    function withdrawAllFrom(address tokenAddress) external nonReentrant {
        require(isRegistered(tokenAddress), "Token not registered");
        
        uint256 totalAmount = 0;
        for (uint256 i = 0; i < lockers[msg.sender][tokenAddress].length; i++) {
            if (block.number > lockers[msg.sender][tokenAddress][i].lockUntil) {
                totalAmount += lockers[msg.sender][tokenAddress][i].amount;
                lockers[msg.sender][tokenAddress][i] = Locker(0, 0);
            }
        }

        require(totalAmount > 0, "No tokens to withdraw");
        
        IERC20 token = IERC20(tokenAddress);
        require(token.transfer(msg.sender, totalAmount), "Transfer failed");

        emit TokensWithdrawn(msg.sender, tokenAddress, totalAmount, 0); // Using 0 as index because we are not withdrawing from a specific locker
    }

    function withdrawLocker(address tokenAddress, uint256 lockerIndex) external nonReentrant {
        require(lockerIndex < lockers[msg.sender][tokenAddress].length, "Invalid locker index");
        Locker storage locker = lockers[msg.sender][tokenAddress][lockerIndex];
        require(locker.amount > 0, "Locker already emptied");
        require(block.number > locker.lockUntil, "Tokens are still locked");
        
        uint256 amount = locker.amount;
        locker.amount = 0;
        locker.lockUntil = 0;

        IERC20 token = IERC20(tokenAddress);
        require(token.transfer(msg.sender, amount), "Transfer failed");

        emit TokensWithdrawn(msg.sender, tokenAddress, amount, lockerIndex);
    }

    function burnLocker(address tokenAddress, uint256 lockerIndex) external nonReentrant {
        require(lockerIndex < lockers[msg.sender][tokenAddress].length, "Invalid locker index");
        Locker storage locker = lockers[msg.sender][tokenAddress][lockerIndex];
        require(locker.amount > 0, "Locker already emptied");
        
        uint256 amount = locker.amount;
        locker.amount = 0;
        locker.lockUntil = 0;

        Carbon21 token = Carbon21(tokenAddress);
        token.burn(amount);

        emit TokensBurnt(msg.sender, tokenAddress, amount, lockerIndex);
    }

    function getLockersFrom(address userAddress) external view returns (address[] memory tokens, uint256[] memory amounts, uint256[] memory lockDurations) {
        uint256 count = 0;
        for (uint256 j = 0; j < registeredTokens.length; j++) {
            count += lockers[userAddress][registeredTokens[j]].length;
        }

        tokens = new address[](count);
        amounts = new uint256[](count);
        lockDurations = new uint256[](count);

        uint256 index = 0;
        for (uint256 j = 0; j < registeredTokens.length; j++) {
            address tokenAddress = registeredTokens[j];
            for (uint256 i = 0; i < lockers[userAddress][tokenAddress].length; i++) {
                tokens[index] = tokenAddress;
                amounts[index] = lockers[userAddress][tokenAddress][i].amount;
                lockDurations[index] = lockers[userAddress][tokenAddress][i].lockUntil > block.number
                    ? lockers[userAddress][tokenAddress][i].lockUntil - block.number
                    : 0;
                index++;
            }
        }
        return (tokens, amounts, lockDurations);
    }

    function getLocked(address tokenAddress) external view returns (uint256) {
        return _getLockedAtBlock(tokenAddress, block.number);
    }

    function getLockedAtBlock(address tokenAddress, uint256 _blockNumber) external view returns (uint256) {
        return _getLockedAtBlock(tokenAddress, _blockNumber);
    }

    function _getLockedAtBlock(address tokenAddress, uint256 _blockNumber) internal view returns (uint256) {
        uint256 totalLocked = 0;
        
        address[] memory users = usersLockingToken[tokenAddress];
        for (uint256 j = 0; j < users.length; j++) {
            address userAddress = users[j];
            for (uint256 i = 0; i < lockers[userAddress][tokenAddress].length; i++) {
                if(lockers[userAddress][tokenAddress][i].lockUntil > _blockNumber) {
                    totalLocked += lockers[userAddress][tokenAddress][i].amount;
                }
            }
        }
        
        return totalLocked;
    }

}
// File: contracts/RulesetManager.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.4;

import "./DiamondCollection.sol";
import "./LockerRoom.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract RulesetManager is Ownable {
	mapping(address => mapping(uint256 => mapping(address => uint256))) private lastMintTime;
	mapping(address => address[]) private allowedTokens;
	address constant WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;

	uint256 public halfwayPoint;
	uint256 public mintAmountLimit;

	constructor() {
		halfwayPoint = 1700780400;
		mintAmountLimit = 3;
	}

	function addAllowedToken(address collectionAddress, address tokenAddress) external onlyOwner {
		allowedTokens[collectionAddress].push(tokenAddress);
	}

	function setMintingTimes(uint256 _halfwayPoint) external onlyOwner {
		halfwayPoint = _halfwayPoint;
	}

	function setMintAmountLimit(uint256 _mintAmountLimit) external onlyOwner {
		mintAmountLimit = _mintAmountLimit;
	}

	function checkRuleset(
		address minter,
		address receiver,
		address collectionAddress,
		address lockerRoomAddress,
		uint256 amount,
		uint256 tokenId
	) external returns (bool) {
		DiamondCollection dc = DiamondCollection(collectionAddress);
		uint256 blueprintId = dc.getBlueprintId(tokenId);
		(, , uint256 maxSupply, , , uint256 minted, uint256 rulesetId, ) = dc.getBlueprint(blueprintId);

		if (isSpecialRuleset(rulesetId)) {
			(, uint256 ruleId) = getIdsFromRuleset(rulesetId);
			rulesetId = ruleId;
		}

		if (rulesetId == 0) {
			return true;
		}

		if (rulesetId == 1) {
			// Check if both minter and receiver have not minted/received this specific tokenId within the required wait time
			if (block.timestamp < halfwayPoint + 1 hours) {
				require(
					block.timestamp >= lastMintTime[collectionAddress][tokenId][minter] + 13 hours &&
					block.timestamp >= lastMintTime[collectionAddress][tokenId][receiver] + 13 hours,
					"Minting limited to 1 each 13 hours."
				);
			}

			// Limit to 1 mint per address
			require(amount <= mintAmountLimit, "Max minting amount reached.");

			// Check if the supply has reached the halfway point, if so check if the second minting time has been reached
			if (minted > (maxSupply / 2)) {
				require(
					block.timestamp >= halfwayPoint,
					"Second minting time not reached yet."
				);
			}

			lastMintTime[collectionAddress][tokenId][minter] = block.timestamp;
			lastMintTime[collectionAddress][tokenId][receiver] = block.timestamp;

			return true;
		}

		return true;
	}

	function getTokenAddressFromRuleset(address collectionAddress, address tokenAddress, uint256 blueprintId) external view returns (address) {
		(, , , , , , uint256 rulesetId, ) = DiamondCollection(collectionAddress).getBlueprint(blueprintId);
		if (isSpecialRuleset(rulesetId)) {
			(uint256 tokenId,) = getIdsFromRuleset(rulesetId);
			if (tokenId == 0) {
				return WETH;
			}
			return allowedTokens[collectionAddress][tokenId-1];
		}
		return tokenAddress;
	}

	function isSpecialRuleset(uint256 rulesetId) internal pure returns (bool) {
		return rulesetId >= 420000;
	}

	function getIdsFromRuleset(uint256 rulesetId) public pure returns (uint256 tokenId, uint256 ruleId) {
		require(isSpecialRuleset(rulesetId), "Not a special ruleset");

		uint256 originalRulesetId = rulesetId;
		uint256 divider = 10;

		// Strip away ruleId
		while (rulesetId > 0) {
				uint256 digit = rulesetId % 10;
				if (digit == 0 && (rulesetId != originalRulesetId)) {
					rulesetId /= 10;
					break;
				}
				rulesetId /= 10;
				divider *= 10;
		}
		ruleId = originalRulesetId % (divider);
		divider = 10;
		uint256 newRulesetId = rulesetId;

		while (rulesetId >= 10000) {
				rulesetId /= 10;
				divider *= 10;
		}
		tokenId = newRulesetId % divider;

		return (tokenId, ruleId);
	}
}