{
  "language": "Solidity",
  "sources": {
    "@metalabel/solmate/src/tokens/ERC721.sol": {
      "content": "// SPDX-License-Identifier: AGPL-3.0-only\npragma solidity >=0.8.0;\n\n/// @notice Data stored per-token, fits into a single storage word\nstruct TokenData {\n    address owner;\n    uint16 sequenceId;\n    uint80 data;\n}\n\n/// @notice Modern, minimalist, and gas efficient ERC-721 implementation.\n/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC721.sol)\nabstract contract ERC721 {\n    /*//////////////////////////////////////////////////////////////\n                                 EVENTS\n    //////////////////////////////////////////////////////////////*/\n\n    event Transfer(address indexed from, address indexed to, uint256 indexed id);\n\n    event Approval(address indexed owner, address indexed spender, uint256 indexed id);\n\n    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);\n\n    /*//////////////////////////////////////////////////////////////\n                         METADATA STORAGE/LOGIC\n    //////////////////////////////////////////////////////////////*/\n\n    function tokenURI(uint256 id) public view virtual returns (string memory);\n\n    /*//////////////////////////////////////////////////////////////\n                      ERC721 BALANCE/OWNER STORAGE\n    //////////////////////////////////////////////////////////////*/\n\n    mapping(uint256 => TokenData) internal _tokenData;\n\n    mapping(address => uint256) internal _balanceOf;\n\n    function ownerOf(uint256 id) public view virtual returns (address owner) {\n        require((owner = _tokenData[id].owner) != address(0), \"NOT_MINTED\");\n    }\n\n    function balanceOf(address owner) public view virtual returns (uint256) {\n        require(owner != address(0), \"ZERO_ADDRESS\");\n\n        return _balanceOf[owner];\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                         ERC721 APPROVAL STORAGE\n    //////////////////////////////////////////////////////////////*/\n\n    mapping(uint256 => address) public getApproved;\n\n    mapping(address => mapping(address => bool)) public isApprovedForAll;\n\n    /*//////////////////////////////////////////////////////////////\n                              ERC721 LOGIC\n    //////////////////////////////////////////////////////////////*/\n\n    function approve(address spender, uint256 id) public virtual {\n        address owner = _tokenData[id].owner;\n\n        require(msg.sender == owner || isApprovedForAll[owner][msg.sender], \"NOT_AUTHORIZED\");\n\n        getApproved[id] = spender;\n\n        emit Approval(owner, spender, id);\n    }\n\n    function setApprovalForAll(address operator, bool approved) public virtual {\n        isApprovedForAll[msg.sender][operator] = approved;\n\n        emit ApprovalForAll(msg.sender, operator, approved);\n    }\n\n    function transferFrom(\n        address from,\n        address to,\n        uint256 id\n    ) public virtual {\n        require(from == _tokenData[id].owner, \"WRONG_FROM\");\n\n        require(to != address(0), \"INVALID_RECIPIENT\");\n\n        require(\n            msg.sender == from || isApprovedForAll[from][msg.sender] || msg.sender == getApproved[id],\n            \"NOT_AUTHORIZED\"\n        );\n\n        // Underflow of the sender's balance is impossible because we check for\n        // ownership above and the recipient's balance can't realistically overflow.\n        unchecked {\n            _balanceOf[from]--;\n\n            _balanceOf[to]++;\n        }\n\n        _tokenData[id].owner = to;\n\n        delete getApproved[id];\n\n        emit Transfer(from, to, id);\n    }\n\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 id\n    ) public virtual {\n        transferFrom(from, to, id);\n\n        require(\n            to.code.length == 0 ||\n                ERC721TokenReceiver(to).onERC721Received(msg.sender, from, id, \"\") ==\n                ERC721TokenReceiver.onERC721Received.selector,\n            \"UNSAFE_RECIPIENT\"\n        );\n    }\n\n    function safeTransferFrom(\n        address from,\n        address to,\n        uint256 id,\n        bytes calldata data\n    ) public virtual {\n        transferFrom(from, to, id);\n\n        require(\n            to.code.length == 0 ||\n                ERC721TokenReceiver(to).onERC721Received(msg.sender, from, id, data) ==\n                ERC721TokenReceiver.onERC721Received.selector,\n            \"UNSAFE_RECIPIENT\"\n        );\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                              ERC165 LOGIC\n    //////////////////////////////////////////////////////////////*/\n\n    function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {\n        return\n            interfaceId == 0x01ffc9a7 || // ERC165 Interface ID for ERC165\n            interfaceId == 0x80ac58cd || // ERC165 Interface ID for ERC721\n            interfaceId == 0x5b5e139f; // ERC165 Interface ID for ERC721Metadata\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                        INTERNAL MINT/BURN LOGIC\n    //////////////////////////////////////////////////////////////*/\n\n    function _mint(address to, uint256 id) internal virtual {\n        return _mint(to, id, 0, 0);\n    }\n\n    function _mint(address to, uint256 id, uint16 sequenceId, uint80 data) internal virtual {\n        require(to != address(0), \"INVALID_RECIPIENT\");\n\n        require(_tokenData[id].owner == address(0), \"ALREADY_MINTED\");\n\n        // Counter overflow is incredibly unrealistic.\n        unchecked {\n            _balanceOf[to]++;\n        }\n\n        _tokenData[id] = TokenData({\n            owner: to,\n            sequenceId: sequenceId,\n            data: data\n        });\n\n        emit Transfer(address(0), to, id);\n    }\n\n    function _burn(uint256 id) internal virtual {\n        address owner = _tokenData[id].owner;\n\n        require(owner != address(0), \"NOT_MINTED\");\n\n        // Ownership check above ensures no underflow.\n        unchecked {\n            _balanceOf[owner]--;\n        }\n\n        delete _tokenData[id];\n\n        delete getApproved[id];\n\n        emit Transfer(owner, address(0), id);\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                        INTERNAL SAFE MINT LOGIC\n    //////////////////////////////////////////////////////////////*/\n\n    function _safeMint(address to, uint256 id) internal virtual {\n        _mint(to, id);\n\n        require(\n            to.code.length == 0 ||\n                ERC721TokenReceiver(to).onERC721Received(msg.sender, address(0), id, \"\") ==\n                ERC721TokenReceiver.onERC721Received.selector,\n            \"UNSAFE_RECIPIENT\"\n        );\n    }\n\n    function _safeMint(\n        address to,\n        uint256 id,\n        bytes memory data\n    ) internal virtual {\n        _mint(to, id);\n\n        require(\n            to.code.length == 0 ||\n                ERC721TokenReceiver(to).onERC721Received(msg.sender, address(0), id, data) ==\n                ERC721TokenReceiver.onERC721Received.selector,\n            \"UNSAFE_RECIPIENT\"\n        );\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                    METALABEL ADDED FUNCTIONALITY\n    //////////////////////////////////////////////////////////////*/\n\n    function getTokenData(uint256 id) external view virtual returns (TokenData memory) {\n        TokenData memory data = _tokenData[id];\n        require(data.owner != address(0), \"NOT_MINTED\");\n        return data;\n    }\n}\n\n/// @notice A generic interface for a contract which properly accepts ERC721 tokens.\n/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC721.sol)\nabstract contract ERC721TokenReceiver {\n    function onERC721Received(\n        address,\n        address,\n        uint256,\n        bytes calldata\n    ) external virtual returns (bytes4) {\n        return ERC721TokenReceiver.onERC721Received.selector;\n    }\n}\n"
    },
    "@metalabel/solmate/src/utils/MerkleProofLib.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity >=0.8.0;\n\n/// @notice Gas optimized merkle proof verification library.\n/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/MerkleProofLib.sol)\n/// @author Modified from Solady (https://github.com/Vectorized/solady/blob/main/src/utils/MerkleProofLib.sol)\nlibrary MerkleProofLib {\n    function verify(\n        bytes32[] calldata proof,\n        bytes32 root,\n        bytes32 leaf\n    ) internal pure returns (bool isValid) {\n        assembly {\n            if proof.length {\n                // Left shifting by 5 is like multiplying by 32.\n                let end := add(proof.offset, shl(5, proof.length))\n\n                // Initialize offset to the offset of the proof in calldata.\n                let offset := proof.offset\n\n                // Iterate over proof elements to compute root hash.\n                // prettier-ignore\n                for {} 1 {} {\n                    // Slot where the leaf should be put in scratch space. If\n                    // leaf > calldataload(offset): slot 32, otherwise: slot 0.\n                    let leafSlot := shl(5, gt(leaf, calldataload(offset)))\n\n                    // Store elements to hash contiguously in scratch space.\n                    // The xor puts calldataload(offset) in whichever slot leaf\n                    // is not occupying, so 0 if leafSlot is 32, and 32 otherwise.\n                    mstore(leafSlot, leaf)\n                    mstore(xor(leafSlot, 32), calldataload(offset))\n\n                    // Reuse leaf to store the hash to reduce stack operations.\n                    leaf := keccak256(0, 64) // Hash both slots of scratch space.\n\n                    offset := add(offset, 32) // Shift 1 word per cycle.\n\n                    // prettier-ignore\n                    if iszero(lt(offset, end)) { break }\n                }\n            }\n\n            isValid := eq(leaf, root) // The proof is valid if the roots match.\n        }\n    }\n}\n"
    },
    "@metalabel/solmate/src/utils/SSTORE2.sol": {
      "content": "// SPDX-License-Identifier: AGPL-3.0-only\npragma solidity >=0.8.0;\n\n/// @notice Read and write to persistent storage at a fraction of the cost.\n/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/utils/SSTORE2.sol)\n/// @author Modified from 0xSequence (https://github.com/0xSequence/sstore2/blob/master/contracts/SSTORE2.sol)\nlibrary SSTORE2 {\n    uint256 internal constant DATA_OFFSET = 1; // We skip the first byte as it's a STOP opcode to ensure the contract can't be called.\n\n    /*//////////////////////////////////////////////////////////////\n                               WRITE LOGIC\n    //////////////////////////////////////////////////////////////*/\n\n    function write(bytes memory data) internal returns (address pointer) {\n        // Prefix the bytecode with a STOP opcode to ensure it cannot be called.\n        bytes memory runtimeCode = abi.encodePacked(hex\"00\", data);\n\n        bytes memory creationCode = abi.encodePacked(\n            //---------------------------------------------------------------------------------------------------------------//\n            // Opcode  | Opcode + Arguments  | Description  | Stack View                                                     //\n            //---------------------------------------------------------------------------------------------------------------//\n            // 0x60    |  0x600B             | PUSH1 11     | codeOffset                                                     //\n            // 0x59    |  0x59               | MSIZE        | 0 codeOffset                                                   //\n            // 0x81    |  0x81               | DUP2         | codeOffset 0 codeOffset                                        //\n            // 0x38    |  0x38               | CODESIZE     | codeSize codeOffset 0 codeOffset                               //\n            // 0x03    |  0x03               | SUB          | (codeSize - codeOffset) 0 codeOffset                           //\n            // 0x80    |  0x80               | DUP          | (codeSize - codeOffset) (codeSize - codeOffset) 0 codeOffset   //\n            // 0x92    |  0x92               | SWAP3        | codeOffset (codeSize - codeOffset) 0 (codeSize - codeOffset)   //\n            // 0x59    |  0x59               | MSIZE        | 0 codeOffset (codeSize - codeOffset) 0 (codeSize - codeOffset) //\n            // 0x39    |  0x39               | CODECOPY     | 0 (codeSize - codeOffset)                                      //\n            // 0xf3    |  0xf3               | RETURN       |                                                                //\n            //---------------------------------------------------------------------------------------------------------------//\n            hex\"60_0B_59_81_38_03_80_92_59_39_F3\", // Returns all code in the contract except for the first 11 (0B in hex) bytes.\n            runtimeCode // The bytecode we want the contract to have after deployment. Capped at 1 byte less than the code size limit.\n        );\n\n        assembly {\n            // Deploy a new contract with the generated creation code.\n            // We start 32 bytes into the code to avoid copying the byte length.\n            pointer := create(0, add(creationCode, 32), mload(creationCode))\n        }\n\n        require(pointer != address(0), \"DEPLOYMENT_FAILED\");\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                               READ LOGIC\n    //////////////////////////////////////////////////////////////*/\n\n    function read(address pointer) internal view returns (bytes memory) {\n        return readBytecode(pointer, DATA_OFFSET, pointer.code.length - DATA_OFFSET);\n    }\n\n    function read(address pointer, uint256 start) internal view returns (bytes memory) {\n        start += DATA_OFFSET;\n\n        return readBytecode(pointer, start, pointer.code.length - start);\n    }\n\n    function read(\n        address pointer,\n        uint256 start,\n        uint256 end\n    ) internal view returns (bytes memory) {\n        start += DATA_OFFSET;\n        end += DATA_OFFSET;\n\n        require(pointer.code.length >= end, \"OUT_OF_BOUNDS\");\n\n        return readBytecode(pointer, start, end - start);\n    }\n\n    /*//////////////////////////////////////////////////////////////\n                          INTERNAL HELPER LOGIC\n    //////////////////////////////////////////////////////////////*/\n\n    function readBytecode(\n        address pointer,\n        uint256 start,\n        uint256 size\n    ) private view returns (bytes memory data) {\n        assembly {\n            // Get a pointer to some free memory.\n            data := mload(0x40)\n\n            // Update the free memory pointer to prevent overriding our data.\n            // We use and(x, not(31)) as a cheaper equivalent to sub(x, mod(x, 32)).\n            // Adding 31 to size and running the result through the logic above ensures\n            // the memory pointer remains word-aligned, following the Solidity convention.\n            mstore(0x40, add(data, and(add(add(size, 32), 31), not(31))))\n\n            // Store the size of the data in the first 32 byte chunk of free memory.\n            mstore(data, size)\n\n            // Copy the code into memory right after the 32 bytes we used to store the size.\n            extcodecopy(pointer, add(data, 32), start, size)\n        }\n    }\n}\n"
    },
    "@openzeppelin/contracts/utils/Strings.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev String operations.\n */\nlibrary Strings {\n    bytes16 private constant _HEX_SYMBOLS = \"0123456789abcdef\";\n    uint8 private constant _ADDRESS_LENGTH = 20;\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` decimal representation.\n     */\n    function toString(uint256 value) internal pure returns (string memory) {\n        // Inspired by OraclizeAPI's implementation - MIT licence\n        // https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol\n\n        if (value == 0) {\n            return \"0\";\n        }\n        uint256 temp = value;\n        uint256 digits;\n        while (temp != 0) {\n            digits++;\n            temp /= 10;\n        }\n        bytes memory buffer = new bytes(digits);\n        while (value != 0) {\n            digits -= 1;\n            buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));\n            value /= 10;\n        }\n        return string(buffer);\n    }\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.\n     */\n    function toHexString(uint256 value) internal pure returns (string memory) {\n        if (value == 0) {\n            return \"0x00\";\n        }\n        uint256 temp = value;\n        uint256 length = 0;\n        while (temp != 0) {\n            length++;\n            temp >>= 8;\n        }\n        return toHexString(value, length);\n    }\n\n    /**\n     * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.\n     */\n    function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {\n        bytes memory buffer = new bytes(2 * length + 2);\n        buffer[0] = \"0\";\n        buffer[1] = \"x\";\n        for (uint256 i = 2 * length + 1; i > 1; --i) {\n            buffer[i] = _HEX_SYMBOLS[value & 0xf];\n            value >>= 4;\n        }\n        require(value == 0, \"Strings: hex length insufficient\");\n        return string(buffer);\n    }\n\n    /**\n     * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation.\n     */\n    function toHexString(address addr) internal pure returns (string memory) {\n        return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH);\n    }\n}\n"
    },
    "contracts/interfaces/INodeRegistry.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nenum NodeType {\n    INVALID_NODE_TYPE,\n    METALABEL,\n    RELEASE\n}\n\n/// @notice Data stored per node.\nstruct NodeData {\n    NodeType nodeType;\n    uint64 owner;\n    uint64 parent;\n    uint64 groupNode;\n    // 7 bytes remaining\n}\n\n/// @notice The node registry maintains a tree of ownable nodes that are used to\n/// catalog logical entities and manage access control in the Metalabel\n/// universe.\ninterface INodeRegistry {\n    /// @notice Create a new node. Child nodes can specify an group node that\n    /// will be used to determine ownership, and a separate logical parent that\n    /// expresses the entity relationship.  Child nodes can only be created if\n    /// msg.sender is an authorized manager of the parent node.\n    function createNode(\n        NodeType nodeType,\n        uint64 owner,\n        uint64 parent,\n        uint64 groupNode,\n        address[] memory initialControllers,\n        string memory metadata\n    ) external returns (uint64 id);\n\n    /// @notice Determine if an address is authorized to manage a node.\n    /// A node can be managed by an address if any of the following conditions\n    /// are true:\n    ///   - The address's account is the owner of the node\n    ///   - The address's account is the owner of the node's group node\n    ///   - The address is an authorized controller of the node\n    ///   - The address is an authorized controller of the node's group node\n    function isAuthorizedAddressForNode(uint64 node, address subject)\n        external\n        view\n        returns (bool isAuthorized);\n\n    /// @notice Resolve node owner account.\n    function ownerOf(uint64 id) external view returns (uint64);\n}\n"
    },
    "contracts/interfaces/IResource.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\nimport {INodeRegistry} from \"./INodeRegistry.sol\";\n\n/// @notice An on-chain resource that is intended to be cataloged within the\n/// Metalabel universe\ninterface IResource {\n    /// @notice Broadcast an arbitrary message.\n    event Broadcast(string topic, string message);\n\n    /// @notice Return the node registry contract address.\n    function nodeRegistry() external view returns (INodeRegistry);\n\n    /// @notice Return the control node ID for this resource.\n    function controlNode() external view returns (uint64 nodeId);\n\n    /// @notice Return true if the given address is authorized to manage this\n    /// resource.\n    function isAuthorized(address subject)\n        external\n        view\n        returns (bool authorized);\n\n    /// @notice Emit an on-chain message. msg.sender must be authorized to\n    /// manage this resource's control node\n    function broadcast(string calldata topic, string calldata message) external;\n}\n"
    },
    "contracts/Memberships.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\n/*\n\n███╗   ███╗███████╗████████╗ █████╗ ██╗      █████╗ ██████╗ ███████╗██╗\n████╗ ████║██╔════╝╚══██╔══╝██╔══██╗██║     ██╔══██╗██╔══██╗██╔════╝██║\n██╔████╔██║█████╗     ██║   ███████║██║     ███████║██████╔╝█████╗  ██║\n██║╚██╔╝██║██╔══╝     ██║   ██╔══██║██║     ██╔══██║██╔══██╗██╔══╝  ██║\n██║ ╚═╝ ██║███████╗   ██║   ██║  ██║███████╗██║  ██║██████╔╝███████╗███████╗\n╚═╝     ╚═╝╚══════╝   ╚═╝   ╚═╝  ╚═╝╚══════╝╚═╝  ╚═╝╚═════╝ ╚══════╝╚══════╝\n\n\nDeployed by Metalabel with 💖 as a permanent application on the Ethereum blockchain.\n\nMetalabel is a growing universe of tools, knowledge, and resources for\nmetalabels and cultural collectives.\n\nOur purpose is to establish the metalabel as key infrastructure for creative\ncollectives and to inspire a new culture of creative collaboration and mutual\nsupport.\n\nOUR SQUAD\n\nAnna Bulbrook (Curator)\nAustin Robey (Community)\nBrandon Valosek (Engineer)\nIlya Yudanov (Designer)\nLauren Dorman (Engineer)\nRob Kalin (Board)\nYancey Strickler (Director)\n\nhttps://metalabel.xyz\n\n*/\n\nimport {ERC721} from \"@metalabel/solmate/src/tokens/ERC721.sol\";\nimport {MerkleProofLib} from \"@metalabel/solmate/src/utils/MerkleProofLib.sol\";\nimport {SSTORE2} from \"@metalabel/solmate/src/utils/SSTORE2.sol\";\nimport {Strings} from \"@openzeppelin/contracts/utils/Strings.sol\";\nimport {INodeRegistry} from \"./interfaces/INodeRegistry.sol\";\nimport {Resource, AccessControlData} from \"./Resource.sol\";\n\n/// @notice Immutable data stored per-collection.\n/// @dev This is stored via SSTORE2 to save gas.\nstruct ImmutableCollectionData {\n    string name;\n    string symbol;\n    string baseURI;\n}\n\n/// @notice Data required when doing a permissionless mint via proof.\nstruct MembershipMint {\n    address to;\n    uint16 sequenceId;\n    bytes32[] proof;\n}\n\n/// @notice Data required when doing an admin mint.\n/// @dev Admin mints do not require a providing a proof to keep gas down.\nstruct AdminMembershipMint {\n    address to;\n    uint16 sequenceId;\n}\n\n/// @notice Data for supply and next ID.\n/// @dev Fits into a single storage slot to keep gas cost down during minting.\nstruct MembershipsState {\n    uint128 totalSupply;\n    uint128 totalMinted;\n}\n\n/// @notice Membership collections can have their metadata resolver set to an\n/// external contract\n/// @dev This is used to futureproof the membership collection -- if a squad\n/// wants to move to a more onchain approach to membership metadata or have an\n/// alternative renderer, this gives them the option\ninterface ICustomMetadataResolver {\n    /// @notice Resolve the token URI for a collection / token.\n    function tokenURI(address collection, uint256 tokenId)\n        external\n        view\n        returns (string memory);\n\n    /// @notice Resolve the collection URI for a collection.\n    function contractURI(address collection)\n        external\n        view\n        returns (string memory);\n}\n\n/// @notice An ERC721 collection of NFTs representing memberships.\n/// - NFTs are non-transferable\n/// - Each membership collection has a control node, determining who the admin is\n/// - Admin can unilaterally mint and burn memberships, without proofs to keep\n///   gas down.\n/// - Admin can use a merkle root to set a large list of memberships that can be\n///   minted by anyone with a valid proof to socialize gas\n/// - Token URI computation defaults to baseURI + tokenID, but can be modified\n///   by a future external metadata resolver contract that implements\n///   ICustomMetadataResolver\n/// - Each token stores the mint timestamp, as well as an arbitrary sequence ID.\n///   Sequence ID has no onchain consequence, but can be set by the admin if\n///   desired\ncontract Memberships is ERC721, Resource {\n    // ---\n    // Errors\n    // ---\n\n    /// @notice The init function was called more than once.\n    error AlreadyInitialized();\n\n    /// @notice Attempted to transfer a membership NFT.\n    error TransferNotAllowed();\n\n    /// @notice Attempted to mint an invalid membership.\n    error InvalidMint();\n\n    /// @notice Attempted to burn an invalid or unowned membership token.\n    error InvalidBurn();\n\n    /// @notice Attempted to admin transfer a membership to somebody who already has one.\n    error InvalidTransfer();\n\n    // ---\n    // Events\n    // ---\n\n    /// @notice A new membership NFT was minted.\n    /// @dev The underlying ERC721 implementation already emits a Transfer event\n    /// on mint, this additional event announces the sequence ID and timestamp\n    /// associated with that membership.\n    event MembershipCreated(\n        uint256 indexed tokenId,\n        uint16 sequenceId,\n        uint80 timestamp\n    );\n\n    /// @notice The merkle root of the membership list was updated.\n    event MembershipListRootUpdated(bytes32 root);\n\n    /// @notice The custom metadata resolver was updated.\n    event CustomMetadataResolverUpdated(ICustomMetadataResolver resolver);\n\n    /// @notice The owner address of this memberships collection was updated.\n    event OwnershipTransferred(\n        address indexed previousOwner,\n        address indexed newOwner\n    );\n\n    // ---\n    // Storage\n    // ---\n\n    /// @notice Only for marketplace interop, can be set by owner of the control\n    /// node.\n    address public owner;\n\n    /// @notice Merkle root of the membership list.\n    bytes32 public membershipListRoot;\n\n    /// @notice If a custom metadata resolver is set, it will be used to resolve\n    /// tokenURI and collectionURI values\n    ICustomMetadataResolver public customMetadataResolver;\n\n    /// @notice Tracks total supply and next ID\n    /// @dev These values are exposed via totalSupply and totalMinted views.\n    MembershipsState internal membershipState;\n\n    /// @notice The SSTORE2 storage pointer for immutable collection data.\n    /// @dev These values are exposed via name/symbol/contractURI views.\n    address internal immutableStoragePointer;\n\n    // ---\n    // Constructor\n    // ---\n\n    /// @dev Constructor only called during deployment of the implementation,\n    /// all storage should be set up in init function which is called atomically\n    /// after clone deployment\n    constructor() {\n        // Write dummy data to the immutable storage pointer to prevent\n        // initialization of the implementation contract.\n        immutableStoragePointer = SSTORE2.write(\n            abi.encode(\n                ImmutableCollectionData({name: \"\", symbol: \"\", baseURI: \"\"})\n            )\n        );\n    }\n\n    // ---\n    // Clone init\n    // ---\n\n    /// @notice Initialize contract state.\n    /// @dev Should be called immediately after deploying the clone in the same transaction.\n    function init(\n        address _owner,\n        AccessControlData calldata _accessControl,\n        string calldata _metadata,\n        ImmutableCollectionData calldata _data\n    ) external {\n        if (immutableStoragePointer != address(0)) revert AlreadyInitialized();\n        immutableStoragePointer = SSTORE2.write(abi.encode(_data));\n\n        // Set ERC721 market interop.\n        owner = _owner;\n        emit OwnershipTransferred(address(0), owner);\n\n        // Assign access control data.\n        accessControl = _accessControl;\n\n        // This memberships collection is a resource that can be cataloged -\n        // emit the initial metadata value\n        emit Broadcast(\"metadata\", _metadata);\n    }\n\n    // ---\n    // Admin functionality\n    // ---\n\n    /// @notice Change the owner address of this collection.\n    /// @dev This is only here for market interop, access control is handled via\n    /// the control node.\n    function setOwner(address _owner) external onlyAuthorized {\n        address previousOwner = owner;\n        owner = _owner;\n        emit OwnershipTransferred(previousOwner, _owner);\n    }\n\n    /// @notice Change the merkle root of the membership list. Only callable by\n    /// the admin\n    function setMembershipListRoot(bytes32 _root) external onlyAuthorized {\n        membershipListRoot = _root;\n        emit MembershipListRootUpdated(_root);\n    }\n\n    /// @notice Set the custom metadata resolver. Passing in address(0) will\n    /// effectively clear the custom resolver. Only callable by the admin.\n    function setCustomMetadataResolver(ICustomMetadataResolver _resolver)\n        external\n        onlyAuthorized\n    {\n        customMetadataResolver = _resolver;\n        emit CustomMetadataResolverUpdated(_resolver);\n    }\n\n    /// @notice Issue or revoke memberships without having to provide proofs.\n    /// Only callable by the admin.\n    function batchMintAndBurn(\n        AdminMembershipMint[] calldata mints,\n        uint256[] calldata burns\n    ) external onlyAuthorized {\n        _mintAndBurn(mints, burns);\n    }\n\n    /// @notice Update the membership list root and burn / mint memberships.\n    /// @dev This is a convenience function for the admin to update things all\n    /// at once; when adding or removing members, we can update the root, and\n    /// issue/revoke memberships for the changes.\n    function updateMemberships(\n        bytes32 _root,\n        AdminMembershipMint[] calldata mints,\n        uint256[] calldata burns\n    ) external onlyAuthorized {\n        membershipListRoot = _root;\n        emit MembershipListRootUpdated(_root);\n        _mintAndBurn(mints, burns);\n    }\n\n    /// @dev Admin (proofless) mint and burn implementation\n    function _mintAndBurn(\n        AdminMembershipMint[] memory mints,\n        uint256[] memory burns\n    ) internal {\n        MembershipsState storage state = membershipState;\n        uint128 minted = state.totalMinted;\n\n        // mint new ones\n        for (uint256 i = 0; i < mints.length; i++) {\n            // enforce at-most-one membership per address\n            if (balanceOf(mints[i].to) > 0) revert InvalidMint();\n            _mint(\n                mints[i].to,\n                ++minted,\n                mints[i].sequenceId,\n                uint80(block.timestamp)\n            );\n            emit MembershipCreated(\n                minted,\n                mints[i].sequenceId,\n                uint80(block.timestamp)\n            );\n        }\n\n        // burn old ones - the underlying implementation will revert if tokenID\n        // is invalid\n        for (uint256 i = 0; i < burns.length; i++) {\n            _burn(burns[i]);\n        }\n\n        // update state\n        state.totalMinted = minted;\n        state.totalSupply =\n            state.totalSupply +\n            uint128(mints.length) -\n            uint128(burns.length);\n    }\n\n    // ---\n    // Permissionless mint\n    // ---\n\n    /// @notice Mint any unminted memberships that are on the membership list.\n    /// Can be called by anyone since each mint requires a proof.\n    function mintMemberships(MembershipMint[] calldata mints) external {\n        MembershipsState storage state = membershipState;\n        uint128 minted = state.totalMinted;\n        uint128 supply = state.totalSupply;\n\n        // for each mint request, verify the proof and mint the token\n        for (uint256 i = 0; i < mints.length; i++) {\n            // enforce at-most-one membership per address\n            if (balanceOf(mints[i].to) > 0) revert InvalidMint();\n            bool isValid = MerkleProofLib.verify(\n                mints[i].proof,\n                membershipListRoot,\n                keccak256(abi.encodePacked(mints[i].to, mints[i].sequenceId))\n            );\n            if (!isValid) revert InvalidMint();\n            _mint(\n                mints[i].to,\n                ++minted,\n                mints[i].sequenceId,\n                uint80(block.timestamp)\n            );\n            emit MembershipCreated(\n                minted,\n                mints[i].sequenceId,\n                uint80(block.timestamp)\n            );\n            supply++;\n        }\n\n        // Write new counts back to storage\n        state.totalMinted = minted;\n        state.totalSupply = supply;\n    }\n\n    // ---\n    // Token holder functionality\n    // ---\n\n    /// @notice Burn a membership. Msg sender must own token.\n    function burnMembership(uint256 tokenId) external {\n        if (ownerOf(tokenId) != msg.sender) revert InvalidBurn();\n        _burn(tokenId);\n        membershipState.totalSupply--;\n    }\n\n    // ---\n    // ERC721 functionality - non-transferability / admin transfers\n    // ---\n\n    /// @notice Transfer is not allowed on this token.\n    function transferFrom(\n        address,\n        address,\n        uint256\n    ) public pure override {\n        revert TransferNotAllowed();\n    }\n\n    /// @notice Transfer an existing membership from one address to another. Only\n    /// callable by the admin.\n    function adminTransferFrom(\n        address from,\n        address to,\n        uint256 id\n    ) external onlyAuthorized {\n        if (from == address(0)) revert InvalidTransfer();\n        if (to == address(0)) revert InvalidTransfer();\n        if (balanceOf(to) != 0) revert InvalidTransfer();\n        if (from != _tokenData[id].owner) revert InvalidTransfer();\n\n        //\n        // The below code was copied from the solmate transferFrom source,\n        // removing the checks (which we've already done above)\n        //\n        // --- START COPIED CODE ---\n        //\n\n        // Underflow of the sender's balance is impossible because we check for\n        // ownership above and the recipient's balance can't realistically overflow.\n        unchecked {\n            _balanceOf[from]--;\n            _balanceOf[to]++;\n        }\n\n        _tokenData[id].owner = to;\n        delete getApproved[id];\n        emit Transfer(from, to, id);\n\n        //\n        // --- END COPIED CODE ---\n        //\n    }\n\n    // ---\n    // ERC721 views\n    // ---\n\n    /// @notice The collection name.\n    function name() public view virtual returns (string memory value) {\n        value = _resolveImmutableStorage().name;\n    }\n\n    /// @notice The collection symbol.\n    function symbol() public view virtual returns (string memory value) {\n        value = _resolveImmutableStorage().symbol;\n    }\n\n    /// @inheritdoc ERC721\n    function tokenURI(uint256 tokenId)\n        public\n        view\n        virtual\n        override\n        returns (string memory uri)\n    {\n        // If a custom metadata resolver is set, use it to get the token URI\n        // instead of the default behavior\n        if (customMetadataResolver != ICustomMetadataResolver(address(0))) {\n            return customMetadataResolver.tokenURI(address(this), tokenId);\n        }\n\n        // Form URI from base + collection + token ID\n        uri = string.concat(\n            _resolveImmutableStorage().baseURI,\n            Strings.toHexString(address(this)),\n            \"/\",\n            Strings.toString(tokenId),\n            \".json\"\n        );\n    }\n\n    /// @notice Get the collection URI\n    function contractURI() public view virtual returns (string memory uri) {\n        // If a custom metadata resolver is set, use it to get the collection\n        // URI instead of the default behavior\n        if (customMetadataResolver != ICustomMetadataResolver(address(0))) {\n            return customMetadataResolver.contractURI(address(this));\n        }\n\n        // Form URI from base + collection\n        uri = string.concat(\n            _resolveImmutableStorage().baseURI,\n            Strings.toHexString(address(this)),\n            \"/collection.json\"\n        );\n    }\n\n    // ---\n    // Misc views\n    // ---\n\n    /// @notice Get a membership's sequence ID.\n    function tokenSequenceId(uint256 tokenId)\n        external\n        view\n        returns (uint16 sequenceId)\n    {\n        sequenceId = _tokenData[tokenId].sequenceId;\n    }\n\n    /// @notice Get a membership's mint timestamp.\n    function tokenMintTimestamp(uint256 tokenId)\n        external\n        view\n        returns (uint80 timestamp)\n    {\n        timestamp = _tokenData[tokenId].data;\n    }\n\n    /// @notice Get total supply of existing memberships.\n    function totalSupply() public view virtual returns (uint256) {\n        return membershipState.totalSupply;\n    }\n\n    /// @notice Get total count of minted memberships, including burned ones.\n    function totalMinted() public view virtual returns (uint256) {\n        return membershipState.totalMinted;\n    }\n\n    // ---\n    // Internal views\n    // ---\n\n    function _resolveImmutableStorage()\n        internal\n        view\n        returns (ImmutableCollectionData memory data)\n    {\n        data = abi.decode(\n            SSTORE2.read(immutableStoragePointer),\n            (ImmutableCollectionData)\n        );\n    }\n}\n"
    },
    "contracts/Resource.sol": {
      "content": "// SPDX-License-Identifier: MIT\npragma solidity 0.8.17;\n\n/*\n\n███╗   ███╗███████╗████████╗ █████╗ ██╗      █████╗ ██████╗ ███████╗██╗\n████╗ ████║██╔════╝╚══██╔══╝██╔══██╗██║     ██╔══██╗██╔══██╗██╔════╝██║\n██╔████╔██║█████╗     ██║   ███████║██║     ███████║██████╔╝█████╗  ██║\n██║╚██╔╝██║██╔══╝     ██║   ██╔══██║██║     ██╔══██║██╔══██╗██╔══╝  ██║\n██║ ╚═╝ ██║███████╗   ██║   ██║  ██║███████╗██║  ██║██████╔╝███████╗███████╗\n╚═╝     ╚═╝╚══════╝   ╚═╝   ╚═╝  ╚═╝╚══════╝╚═╝  ╚═╝╚═════╝ ╚══════╝╚══════╝\n\n\nDeployed by Metalabel with 💖 as a permanent application on the Ethereum blockchain.\n\nMetalabel is a growing universe of tools, knowledge, and resources for\nmetalabels and cultural collectives.\n\nOur purpose is to establish the metalabel as key infrastructure for creative\ncollectives and to inspire a new culture of creative collaboration and mutual\nsupport.\n\nOUR SQUAD\n\nAnna Bulbrook (Curator)\nAustin Robey (Community)\nBrandon Valosek (Engineer)\nIlya Yudanov (Designer)\nLauren Dorman (Engineer)\nRob Kalin (Board)\nYancey Strickler (Director)\n\nhttps://metalabel.xyz\n\n*/\n\nimport {IResource} from \"./interfaces/IResource.sol\";\nimport {INodeRegistry} from \"./interfaces/INodeRegistry.sol\";\n\n/// @notice Data stored for handling access control resolution.\nstruct AccessControlData {\n    INodeRegistry nodeRegistry;\n    uint64 controlNodeId;\n    // 4 bytes remaining\n}\n\n/// @notice A resource that can be cataloged on the Metalabel protocol.\ncontract Resource is IResource {\n    // ---\n    // Errors\n    // ---\n\n    /// @notice Unauthorized msg.sender attempted to interact with this resource\n    error NotAuthorized();\n\n    // ---\n    // Storage\n    // ---\n\n    /// @notice Access control data for this resource.\n    AccessControlData public accessControl;\n\n    // ---\n    // Modifiers\n    // ---\n\n    /// @dev Make a function only callable by a msg.sender that is authorized to\n    /// manage the control node of this resource\n    modifier onlyAuthorized() {\n        if (\n            !accessControl.nodeRegistry.isAuthorizedAddressForNode(\n                accessControl.controlNodeId,\n                msg.sender\n            )\n        ) {\n            revert NotAuthorized();\n        }\n        _;\n    }\n\n    // ---\n    // Admin functionality\n    // ---\n\n    /// @inheritdoc IResource\n    function broadcast(string calldata topic, string calldata message)\n        external\n        onlyAuthorized\n    {\n        emit Broadcast(topic, message);\n    }\n\n    // ---\n    // Resource views\n    // ---\n\n    /// @inheritdoc IResource\n    function nodeRegistry() external view virtual returns (INodeRegistry) {\n        return accessControl.nodeRegistry;\n    }\n\n    /// @inheritdoc IResource\n    function controlNode() external view virtual returns (uint64 nodeId) {\n        return accessControl.controlNodeId;\n    }\n\n    /// @inheritdoc IResource\n    function isAuthorized(address subject)\n        public\n        view\n        virtual\n        returns (bool authorized)\n    {\n        authorized = accessControl.nodeRegistry.isAuthorizedAddressForNode(\n            accessControl.controlNodeId,\n            subject\n        );\n    }\n}\n"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 1000
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "libraries": {}
  }
}