Contract 0x7f62f0b6c49ffdf81d9b4ea17a76560aa097e286

 
 
Txn Hash Method
Block
From
To
Value [Txn Fee]
0x733f53651a8253c16bab9ec619461d8f898649c705ef0b4780fedff10b3e6729Transfer From334731692022-09-23 16:37:5964 days 6 hrs ago0xd1feccf6881970105dfb2b654054174007f0e07e IN  0x7f62f0b6c49ffdf81d9b4ea17a76560aa097e2860 MATIC0.00617424595457.91214995
[ Download CSV Export 
Latest 1 internal transaction
Parent Txn Hash Block From To Value
0xbe1c55a4e608c80bc0d9c8359f950b82b82e250b13de86dfc14ff731717d3c21334731672022-09-23 16:37:5564 days 6 hrs ago Lens Protocol: Profiles  Contract Creation0 MATIC
[ Download CSV Export 
Loading

Minimal Proxy Contract for 0xec9d9e482ce7fb715605e18add72b5a696880357

Contract Name:
CollectNFT

Compiler Version
v0.8.10+commit.fc410830

Optimization Enabled:
Yes with 200 runs

Other Settings:
default evmVersion
Decompile ByteCode

Contract Source Code (Solidity Standard Json-Input format)

File 1 of 20 : CollectNFT.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

import {ICollectNFT} from '../interfaces/ICollectNFT.sol';
import {ILensHub} from '../interfaces/ILensHub.sol';
import {Errors} from '../libraries/Errors.sol';
import {Events} from '../libraries/Events.sol';
import {LensNFTBase} from './base/LensNFTBase.sol';

/**
 * @title CollectNFT
 * @author Lens Protocol
 *
 * @notice This is the NFT contract that is minted upon collecting a given publication. It is cloned upon
 * the first collect for a given publication, and the token URI points to the original publication's contentURI.
 */
contract CollectNFT is LensNFTBase, ICollectNFT {
    address public immutable HUB;

    uint256 internal _profileId;
    uint256 internal _pubId;
    uint256 internal _tokenIdCounter;

    bool private _initialized;

    // We create the CollectNFT with the pre-computed HUB address before deploying the hub proxy in order
    // to initialize the hub proxy at construction.
    constructor(address hub) {
        if (hub == address(0)) revert Errors.InitParamsInvalid();
        HUB = hub;
        _initialized = true;
    }

    /// @inheritdoc ICollectNFT
    function initialize(
        uint256 profileId,
        uint256 pubId,
        string calldata name,
        string calldata symbol
    ) external override {
        if (_initialized) revert Errors.Initialized();
        _initialized = true;
        _profileId = profileId;
        _pubId = pubId;
        super._initialize(name, symbol);
        emit Events.CollectNFTInitialized(profileId, pubId, block.timestamp);
    }

    /// @inheritdoc ICollectNFT
    function mint(address to) external override returns (uint256) {
        if (msg.sender != HUB) revert Errors.NotHub();
        unchecked {
            uint256 tokenId = ++_tokenIdCounter;
            _mint(to, tokenId);
            return tokenId;
        }
    }

    /// @inheritdoc ICollectNFT
    function getSourcePublicationPointer() external view override returns (uint256, uint256) {
        return (_profileId, _pubId);
    }

    function tokenURI(uint256 tokenId) public view override returns (string memory) {
        if (!_exists(tokenId)) revert Errors.TokenDoesNotExist();
        return ILensHub(HUB).getContentURI(_profileId, _pubId);
    }

    /**
     * @dev Upon transfers, we emit the transfer event in the hub.
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal override {
        super._beforeTokenTransfer(from, to, tokenId);
        ILensHub(HUB).emitCollectNFTTransferEvent(_profileId, _pubId, tokenId, from, to);
    }
}

File 2 of 20 : ICollectNFT.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

/**
 * @title ICollectNFT
 * @author Lens Protocol
 *
 * @notice This is the interface for the CollectNFT contract. Which is cloned upon the first collect for any given
 * publication.
 */
interface ICollectNFT {
    /**
     * @notice Initializes the collect NFT, setting the feed as the privileged minter, storing the collected publication pointer
     * and initializing the name and symbol in the LensNFTBase contract.
     *
     * @param profileId The token ID of the profile in the hub that this collectNFT points to.
     * @param pubId The profile publication ID in the hub that this collectNFT points to.
     * @param name The name to set for this NFT.
     * @param symbol The symbol to set for this NFT.
     */
    function initialize(
        uint256 profileId,
        uint256 pubId,
        string calldata name,
        string calldata symbol
    ) external;

    /**
     * @notice Mints a collect NFT to the specified address. This can only be called by the hub, and is called
     * upon collection.
     *
     * @param to The address to mint the NFT to.
     *
     * @return uint256 An interger representing the minted token ID.
     */
    function mint(address to) external returns (uint256);

    /**
     * @notice Returns the source publication pointer mapped to this collect NFT.
     *
     * @return tuple First the profile ID uint256, and second the pubId uint256.
     */
    function getSourcePublicationPointer() external view returns (uint256, uint256);
}

File 3 of 20 : ILensHub.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

import {DataTypes} from '../libraries/DataTypes.sol';

/**
 * @title ILensHub
 * @author Lens Protocol
 *
 * @notice This is the interface for the LensHub contract, the main entry point for the Lens Protocol.
 * You'll find all the events and external functions, as well as the reasoning behind them here.
 */
interface ILensHub {
    /**
     * @notice Initializes the LensHub NFT, setting the initial governance address as well as the name and symbol in
     * the LensNFTBase contract.
     *
     * @param name The name to set for the hub NFT.
     * @param symbol The symbol to set for the hub NFT.
     * @param newGovernance The governance address to set.
     */
    function initialize(
        string calldata name,
        string calldata symbol,
        address newGovernance
    ) external;

    /**
     * @notice Sets the privileged governance role. This function can only be called by the current governance
     * address.
     *
     * @param newGovernance The new governance address to set.
     */
    function setGovernance(address newGovernance) external;

    /**
     * @notice Sets the emergency admin, which is a permissioned role able to set the protocol state. This function
     * can only be called by the governance address.
     *
     * @param newEmergencyAdmin The new emergency admin address to set.
     */
    function setEmergencyAdmin(address newEmergencyAdmin) external;

    /**
     * @notice Sets the protocol state to either a global pause, a publishing pause or an unpaused state. This function
     * can only be called by the governance address or the emergency admin address.
     *
     * Note that this reverts if the emergency admin calls it if:
     *      1. The emergency admin is attempting to unpause.
     *      2. The emergency admin is calling while the protocol is already paused.
     *
     * @param newState The state to set, as a member of the ProtocolState enum.
     */
    function setState(DataTypes.ProtocolState newState) external;

    /**
     * @notice Adds or removes a profile creator from the whitelist. This function can only be called by the current
     * governance address.
     *
     * @param profileCreator The profile creator address to add or remove from the whitelist.
     * @param whitelist Whether or not the profile creator should be whitelisted.
     */
    function whitelistProfileCreator(address profileCreator, bool whitelist) external;

    /**
     * @notice Adds or removes a follow module from the whitelist. This function can only be called by the current
     * governance address.
     *
     * @param followModule The follow module contract address to add or remove from the whitelist.
     * @param whitelist Whether or not the follow module should be whitelisted.
     */
    function whitelistFollowModule(address followModule, bool whitelist) external;

    /**
     * @notice Adds or removes a reference module from the whitelist. This function can only be called by the current
     * governance address.
     *
     * @param referenceModule The reference module contract to add or remove from the whitelist.
     * @param whitelist Whether or not the reference module should be whitelisted.
     */
    function whitelistReferenceModule(address referenceModule, bool whitelist) external;

    /**
     * @notice Adds or removes a collect module from the whitelist. This function can only be called by the current
     * governance address.
     *
     * @param collectModule The collect module contract address to add or remove from the whitelist.
     * @param whitelist Whether or not the collect module should be whitelisted.
     */
    function whitelistCollectModule(address collectModule, bool whitelist) external;

    /**
     * @notice Creates a profile with the specified parameters, minting a profile NFT to the given recipient. This
     * function must be called by a whitelisted profile creator.
     *
     * @param vars A CreateProfileData struct containing the following params:
     *      to: The address receiving the profile.
     *      handle: The handle to set for the profile, must be unique and non-empty.
     *      imageURI: The URI to set for the profile image.
     *      followModule: The follow module to use, can be the zero address.
     *      followModuleInitData: The follow module initialization data, if any.
     */
    function createProfile(DataTypes.CreateProfileData calldata vars) external returns (uint256);

    /**
     * @notice Sets the mapping between wallet and its main profile identity.
     *
     * @param profileId The token ID of the profile to set as the main profile identity.
     */
    function setDefaultProfile(uint256 profileId) external;

    /**
     * @notice Sets the mapping between wallet and its main profile identity via signature with the specified parameters.
     *
     * @param vars A SetDefaultProfileWithSigData struct, including the regular parameters and an EIP712Signature struct.
     */
    function setDefaultProfileWithSig(DataTypes.SetDefaultProfileWithSigData calldata vars)
        external;

    /**
     * @notice Sets a profile's follow module, must be called by the profile owner.
     *
     * @param profileId The token ID of the profile to set the follow module for.
     * @param followModule The follow module to set for the given profile, must be whitelisted.
     * @param followModuleInitData The data to be passed to the follow module for initialization.
     */
    function setFollowModule(
        uint256 profileId,
        address followModule,
        bytes calldata followModuleInitData
    ) external;

    /**
     * @notice Sets a profile's follow module via signature with the specified parameters.
     *
     * @param vars A SetFollowModuleWithSigData struct, including the regular parameters and an EIP712Signature struct.
     */
    function setFollowModuleWithSig(DataTypes.SetFollowModuleWithSigData calldata vars) external;

    /**
     * @notice Sets a profile's dispatcher, giving that dispatcher rights to publish to that profile.
     *
     * @param profileId The token ID of the profile of the profile to set the dispatcher for.
     * @param dispatcher The dispatcher address to set for the given profile ID.
     */
    function setDispatcher(uint256 profileId, address dispatcher) external;

    /**
     * @notice Sets a profile's dispatcher via signature with the specified parameters.
     *
     * @param vars A SetDispatcherWithSigData struct, including the regular parameters and an EIP712Signature struct.
     */
    function setDispatcherWithSig(DataTypes.SetDispatcherWithSigData calldata vars) external;

    /**
     * @notice Sets a profile's URI, which is reflected in the `tokenURI()` function.
     *
     * @param profileId The token ID of the profile of the profile to set the URI for.
     * @param imageURI The URI to set for the given profile.
     */
    function setProfileImageURI(uint256 profileId, string calldata imageURI) external;

    /**
     * @notice Sets a profile's URI via signature with the specified parameters.
     *
     * @param vars A SetProfileImageURIWithSigData struct, including the regular parameters and an EIP712Signature struct.
     */
    function setProfileImageURIWithSig(DataTypes.SetProfileImageURIWithSigData calldata vars)
        external;

    /**
     * @notice Sets a followNFT URI for a given profile's follow NFT.
     *
     * @param profileId The token ID of the profile for which to set the followNFT URI.
     * @param followNFTURI The follow NFT URI to set.
     */
    function setFollowNFTURI(uint256 profileId, string calldata followNFTURI) external;

    /**
     * @notice Sets a followNFT URI via signature with the specified parameters.
     *
     * @param vars A SetFollowNFTURIWithSigData struct, including the regular parameters and an EIP712Signature struct.
     */
    function setFollowNFTURIWithSig(DataTypes.SetFollowNFTURIWithSigData calldata vars) external;

    /**
     * @notice Publishes a post to a given profile, must be called by the profile owner.
     *
     * @param vars A PostData struct containing the needed parameters.
     *
     * @return uint256 An integer representing the post's publication ID.
     */
    function post(DataTypes.PostData calldata vars) external returns (uint256);

    /**
     * @notice Publishes a post to a given profile via signature with the specified parameters.
     *
     * @param vars A PostWithSigData struct containing the regular parameters and an EIP712Signature struct.
     *
     * @return uint256 An integer representing the post's publication ID.
     */
    function postWithSig(DataTypes.PostWithSigData calldata vars) external returns (uint256);

    /**
     * @notice Publishes a comment to a given profile, must be called by the profile owner.
     *
     * @param vars A CommentData struct containing the needed parameters.
     *
     * @return uint256 An integer representing the comment's publication ID.
     */
    function comment(DataTypes.CommentData calldata vars) external returns (uint256);

    /**
     * @notice Publishes a comment to a given profile via signature with the specified parameters.
     *
     * @param vars A CommentWithSigData struct containing the regular parameters and an EIP712Signature struct.
     *
     * @return uint256 An integer representing the comment's publication ID.
     */
    function commentWithSig(DataTypes.CommentWithSigData calldata vars) external returns (uint256);

    /**
     * @notice Publishes a mirror to a given profile, must be called by the profile owner.
     *
     * @param vars A MirrorData struct containing the necessary parameters.
     *
     * @return uint256 An integer representing the mirror's publication ID.
     */
    function mirror(DataTypes.MirrorData calldata vars) external returns (uint256);

    /**
     * @notice Publishes a mirror to a given profile via signature with the specified parameters.
     *
     * @param vars A MirrorWithSigData struct containing the regular parameters and an EIP712Signature struct.
     *
     * @return uint256 An integer representing the mirror's publication ID.
     */
    function mirrorWithSig(DataTypes.MirrorWithSigData calldata vars) external returns (uint256);

    /**
     * @notice Follows the given profiles, executing each profile's follow module logic (if any) and minting followNFTs to the caller.
     *
     * NOTE: Both the `profileIds` and `datas` arrays must be of the same length, regardless if the profiles do not have a follow module set.
     *
     * @param profileIds The token ID array of the profiles to follow.
     * @param datas The arbitrary data array to pass to the follow module for each profile if needed.
     *
     * @return uint256[] An array of integers representing the minted follow NFTs token IDs.
     */
    function follow(uint256[] calldata profileIds, bytes[] calldata datas)
        external
        returns (uint256[] memory);

    /**
     * @notice Follows a given profile via signature with the specified parameters.
     *
     * @param vars A FollowWithSigData struct containing the regular parameters as well as the signing follower's address
     * and an EIP712Signature struct.
     *
     * @return uint256[] An array of integers representing the minted follow NFTs token IDs.
     */
    function followWithSig(DataTypes.FollowWithSigData calldata vars)
        external
        returns (uint256[] memory);

    /**
     * @notice Collects a given publication, executing collect module logic and minting a collectNFT to the caller.
     *
     * @param profileId The token ID of the profile that published the publication to collect.
     * @param pubId The publication to collect's publication ID.
     * @param data The arbitrary data to pass to the collect module if needed.
     *
     * @return uint256 An integer representing the minted token ID.
     */
    function collect(
        uint256 profileId,
        uint256 pubId,
        bytes calldata data
    ) external returns (uint256);

    /**
     * @notice Collects a given publication via signature with the specified parameters.
     *
     * @param vars A CollectWithSigData struct containing the regular parameters as well as the collector's address and
     * an EIP712Signature struct.
     *
     * @return uint256 An integer representing the minted token ID.
     */
    function collectWithSig(DataTypes.CollectWithSigData calldata vars) external returns (uint256);

    /**
     * @dev Helper function to emit a detailed followNFT transfer event from the hub, to be consumed by frontends to track
     * followNFT transfers.
     *
     * @param profileId The token ID of the profile associated with the followNFT being transferred.
     * @param followNFTId The followNFT being transferred's token ID.
     * @param from The address the followNFT is being transferred from.
     * @param to The address the followNFT is being transferred to.
     */
    function emitFollowNFTTransferEvent(
        uint256 profileId,
        uint256 followNFTId,
        address from,
        address to
    ) external;

    /**
     * @dev Helper function to emit a detailed collectNFT transfer event from the hub, to be consumed by frontends to track
     * collectNFT transfers.
     *
     * @param profileId The token ID of the profile associated with the collect NFT being transferred.
     * @param pubId The publication ID associated with the collect NFT being transferred.
     * @param collectNFTId The collectNFT being transferred's token ID.
     * @param from The address the collectNFT is being transferred from.
     * @param to The address the collectNFT is being transferred to.
     */
    function emitCollectNFTTransferEvent(
        uint256 profileId,
        uint256 pubId,
        uint256 collectNFTId,
        address from,
        address to
    ) external;

    /// ************************
    /// *****VIEW FUNCTIONS*****
    /// ************************

    /**
     * @notice Returns whether or not a profile creator is whitelisted.
     *
     * @param profileCreator The address of the profile creator to check.
     *
     * @return bool True if the profile creator is whitelisted, false otherwise.
     */
    function isProfileCreatorWhitelisted(address profileCreator) external view returns (bool);

    /**
     * @notice Returns default profile for a given wallet address
     *
     * @param wallet The address to find the default mapping
     *
     * @return uint256 The default profile id, which will be 0 if not mapped.
     */
    function defaultProfile(address wallet) external view returns (uint256);

    /**
     * @notice Returns whether or not a follow module is whitelisted.
     *
     * @param followModule The address of the follow module to check.
     *
     * @return bool True if the the follow module is whitelisted, false otherwise.
     */
    function isFollowModuleWhitelisted(address followModule) external view returns (bool);

    /**
     * @notice Returns whether or not a reference module is whitelisted.
     *
     * @param referenceModule The address of the reference module to check.
     *
     * @return bool True if the the reference module is whitelisted, false otherwise.
     */
    function isReferenceModuleWhitelisted(address referenceModule) external view returns (bool);

    /**
     * @notice Returns whether or not a collect module is whitelisted.
     *
     * @param collectModule The address of the collect module to check.
     *
     * @return bool True if the the collect module is whitelisted, false otherwise.
     */
    function isCollectModuleWhitelisted(address collectModule) external view returns (bool);

    /**
     * @notice Returns the currently configured governance address.
     *
     * @return address The address of the currently configured governance.
     */
    function getGovernance() external view returns (address);

    /**
     * @notice Returns the dispatcher associated with a profile.
     *
     * @param profileId The token ID of the profile to query the dispatcher for.
     *
     * @return address The dispatcher address associated with the profile.
     */
    function getDispatcher(uint256 profileId) external view returns (address);

    /**
     * @notice Returns the publication count for a given profile.
     *
     * @param profileId The token ID of the profile to query.
     *
     * @return uint256 The number of publications associated with the queried profile.
     */
    function getPubCount(uint256 profileId) external view returns (uint256);

    /**
     * @notice Returns the followNFT associated with a given profile, if any.
     *
     * @param profileId The token ID of the profile to query the followNFT for.
     *
     * @return address The followNFT associated with the given profile.
     */
    function getFollowNFT(uint256 profileId) external view returns (address);

    /**
     * @notice Returns the followNFT URI associated with a given profile.
     *
     * @param profileId The token ID of the profile to query the followNFT URI for.
     *
     * @return string The followNFT URI associated with the given profile.
     */
    function getFollowNFTURI(uint256 profileId) external view returns (string memory);

    /**
     * @notice Returns the collectNFT associated with a given publication, if any.
     *
     * @param profileId The token ID of the profile that published the publication to query.
     * @param pubId The publication ID of the publication to query.
     *
     * @return address The address of the collectNFT associated with the queried publication.
     */
    function getCollectNFT(uint256 profileId, uint256 pubId) external view returns (address);

    /**
     * @notice Returns the follow module associated witha  given profile, if any.
     *
     * @param profileId The token ID of the profile to query the follow module for.
     *
     * @return address The address of the follow module associated with the given profile.
     */
    function getFollowModule(uint256 profileId) external view returns (address);

    /**
     * @notice Returns the collect module associated with a given publication.
     *
     * @param profileId The token ID of the profile that published the publication to query.
     * @param pubId The publication ID of the publication to query.
     *
     * @return address The address of the collect module associated with the queried publication.
     */
    function getCollectModule(uint256 profileId, uint256 pubId) external view returns (address);

    /**
     * @notice Returns the reference module associated witha  given profile, if any.
     *
     * @param profileId The token ID of the profile that published the publication to querythe reference module for.
     * @param pubId The publication ID of the publication to query the reference module for.
     *
     * @return address The address of the reference module associated with the given profile.
     */
    function getReferenceModule(uint256 profileId, uint256 pubId) external view returns (address);

    /**
     * @notice Returns the handle associated with a profile.
     *
     * @param profileId The token ID of the profile to query the handle for.
     *
     * @return string The handle associated with the profile.
     */
    function getHandle(uint256 profileId) external view returns (string memory);

    /**
     * @notice Returns the publication pointer (profileId & pubId) associated with a given publication.
     *
     * @param profileId The token ID of the profile that published the publication to query the pointer for.
     * @param pubId The publication ID of the publication to query the pointer for.
     *
     * @return tuple First, the profile ID of the profile the current publication is pointing to, second, the
     * publication ID of the publication the current publication is pointing to.
     */
    function getPubPointer(uint256 profileId, uint256 pubId)
        external
        view
        returns (uint256, uint256);

    /**
     * @notice Returns the URI associated with a given publication.
     *
     * @param profileId The token ID of the profile that published the publication to query.
     * @param pubId The publication ID of the publication to query.
     *
     * @return string The URI associated with a given publication.
     */
    function getContentURI(uint256 profileId, uint256 pubId) external view returns (string memory);

    /**
     * @notice Returns the profile token ID according to a given handle.
     *
     * @param handle The handle to resolve the profile token ID with.
     *
     * @return uint256 The profile ID the passed handle points to.
     */
    function getProfileIdByHandle(string calldata handle) external view returns (uint256);

    /**
     * @notice Returns the full profile struct associated with a given profile token ID.
     *
     * @param profileId The token ID of the profile to query.
     *
     * @return ProfileStruct The profile struct of the given profile.
     */
    function getProfile(uint256 profileId) external view returns (DataTypes.ProfileStruct memory);

    /**
     * @notice Returns the full publication struct for a given publication.
     *
     * @param profileId The token ID of the profile that published the publication to query.
     * @param pubId The publication ID of the publication to query.
     *
     * @return PublicationStruct The publication struct associated with the queried publication.
     */
    function getPub(uint256 profileId, uint256 pubId)
        external
        view
        returns (DataTypes.PublicationStruct memory);

    /**
     * @notice Returns the publication type associated with a given publication.
     *
     * @param profileId The token ID of the profile that published the publication to query.
     * @param pubId The publication ID of the publication to query.
     *
     * @return PubType The publication type, as a member of an enum (either "post," "comment" or "mirror").
     */
    function getPubType(uint256 profileId, uint256 pubId) external view returns (DataTypes.PubType);

    /**
     * @notice Returns the follow NFT implementation address.
     *
     * @return address The follow NFT implementation address.
     */
    function getFollowNFTImpl() external view returns (address);

    /**
     * @notice Returns the collect NFT implementation address.
     *
     * @return address The collect NFT implementation address.
     */
    function getCollectNFTImpl() external view returns (address);
}

File 4 of 20 : Errors.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

library Errors {
    error CannotInitImplementation();
    error Initialized();
    error SignatureExpired();
    error ZeroSpender();
    error SignatureInvalid();
    error NotOwnerOrApproved();
    error NotHub();
    error TokenDoesNotExist();
    error NotGovernance();
    error NotGovernanceOrEmergencyAdmin();
    error EmergencyAdminCannotUnpause();
    error CallerNotWhitelistedModule();
    error CollectModuleNotWhitelisted();
    error FollowModuleNotWhitelisted();
    error ReferenceModuleNotWhitelisted();
    error ProfileCreatorNotWhitelisted();
    error NotProfileOwner();
    error NotProfileOwnerOrDispatcher();
    error NotDispatcher();
    error PublicationDoesNotExist();
    error HandleTaken();
    error HandleLengthInvalid();
    error HandleContainsInvalidCharacters();
    error HandleFirstCharInvalid();
    error ProfileImageURILengthInvalid();
    error CallerNotFollowNFT();
    error CallerNotCollectNFT();
    error BlockNumberInvalid();
    error ArrayMismatch();
    error CannotCommentOnSelf();
    error NotWhitelisted();

    // Module Errors
    error InitParamsInvalid();
    error CollectExpired();
    error FollowInvalid();
    error ModuleDataMismatch();
    error FollowNotApproved();
    error MintLimitExceeded();
    error CollectNotAllowed();

    // MultiState Errors
    error Paused();
    error PublishingPaused();
}

File 5 of 20 : Events.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

import {DataTypes} from './DataTypes.sol';

library Events {
    /**
     * @dev Emitted when the NFT contract's name and symbol are set at initialization.
     *
     * @param name The NFT name set.
     * @param symbol The NFT symbol set.
     * @param timestamp The current block timestamp.
     */
    event BaseInitialized(string name, string symbol, uint256 timestamp);

    /**
     * @dev Emitted when the hub state is set.
     *
     * @param caller The caller who set the state.
     * @param prevState The previous protocol state, an enum of either `Paused`, `PublishingPaused` or `Unpaused`.
     * @param newState The newly set state, an enum of either `Paused`, `PublishingPaused` or `Unpaused`.
     * @param timestamp The current block timestamp.
     */
    event StateSet(
        address indexed caller,
        DataTypes.ProtocolState indexed prevState,
        DataTypes.ProtocolState indexed newState,
        uint256 timestamp
    );

    /**
     * @dev Emitted when the governance address is changed. We emit the caller even though it should be the previous
     * governance address, as we cannot guarantee this will always be the case due to upgradeability.
     *
     * @param caller The caller who set the governance address.
     * @param prevGovernance The previous governance address.
     * @param newGovernance The new governance address set.
     * @param timestamp The current block timestamp.
     */
    event GovernanceSet(
        address indexed caller,
        address indexed prevGovernance,
        address indexed newGovernance,
        uint256 timestamp
    );

    /**
     * @dev Emitted when the emergency admin is changed. We emit the caller even though it should be the previous
     * governance address, as we cannot guarantee this will always be the case due to upgradeability.
     *
     * @param caller The caller who set the emergency admin address.
     * @param oldEmergencyAdmin The previous emergency admin address.
     * @param newEmergencyAdmin The new emergency admin address set.
     * @param timestamp The current block timestamp.
     */
    event EmergencyAdminSet(
        address indexed caller,
        address indexed oldEmergencyAdmin,
        address indexed newEmergencyAdmin,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a profile creator is added to or removed from the whitelist.
     *
     * @param profileCreator The address of the profile creator.
     * @param whitelisted Whether or not the profile creator is being added to the whitelist.
     * @param timestamp The current block timestamp.
     */
    event ProfileCreatorWhitelisted(
        address indexed profileCreator,
        bool indexed whitelisted,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a follow module is added to or removed from the whitelist.
     *
     * @param followModule The address of the follow module.
     * @param whitelisted Whether or not the follow module is being added to the whitelist.
     * @param timestamp The current block timestamp.
     */
    event FollowModuleWhitelisted(
        address indexed followModule,
        bool indexed whitelisted,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a reference module is added to or removed from the whitelist.
     *
     * @param referenceModule The address of the reference module.
     * @param whitelisted Whether or not the reference module is being added to the whitelist.
     * @param timestamp The current block timestamp.
     */
    event ReferenceModuleWhitelisted(
        address indexed referenceModule,
        bool indexed whitelisted,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a collect module is added to or removed from the whitelist.
     *
     * @param collectModule The address of the collect module.
     * @param whitelisted Whether or not the collect module is being added to the whitelist.
     * @param timestamp The current block timestamp.
     */
    event CollectModuleWhitelisted(
        address indexed collectModule,
        bool indexed whitelisted,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a profile is created.
     *
     * @param profileId The newly created profile's token ID.
     * @param creator The profile creator, who created the token with the given profile ID.
     * @param to The address receiving the profile with the given profile ID.
     * @param handle The handle set for the profile.
     * @param imageURI The image uri set for the profile.
     * @param followModule The profile's newly set follow module. This CAN be the zero address.
     * @param followModuleReturnData The data returned from the follow module's initialization. This is abi encoded
     * and totally depends on the follow module chosen.
     * @param followNFTURI The URI set for the profile's follow NFT.
     * @param timestamp The current block timestamp.
     */
    event ProfileCreated(
        uint256 indexed profileId,
        address indexed creator,
        address indexed to,
        string handle,
        string imageURI,
        address followModule,
        bytes followModuleReturnData,
        string followNFTURI,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a a default profile is set for a wallet as its main identity
     *
     * @param wallet The wallet which set or unset its default profile.
     * @param profileId The token ID of the profile being set as default, or zero.
     * @param timestamp The current block timestamp.
     */
    event DefaultProfileSet(address indexed wallet, uint256 indexed profileId, uint256 timestamp);

    /**
     * @dev Emitted when a dispatcher is set for a specific profile.
     *
     * @param profileId The token ID of the profile for which the dispatcher is set.
     * @param dispatcher The dispatcher set for the given profile.
     * @param timestamp The current block timestamp.
     */
    event DispatcherSet(uint256 indexed profileId, address indexed dispatcher, uint256 timestamp);

    /**
     * @dev Emitted when a profile's URI is set.
     *
     * @param profileId The token ID of the profile for which the URI is set.
     * @param imageURI The URI set for the given profile.
     * @param timestamp The current block timestamp.
     */
    event ProfileImageURISet(uint256 indexed profileId, string imageURI, uint256 timestamp);

    /**
     * @dev Emitted when a follow NFT's URI is set.
     *
     * @param profileId The token ID of the profile for which the followNFT URI is set.
     * @param followNFTURI The follow NFT URI set.
     * @param timestamp The current block timestamp.
     */
    event FollowNFTURISet(uint256 indexed profileId, string followNFTURI, uint256 timestamp);

    /**
     * @dev Emitted when a profile's follow module is set.
     *
     * @param profileId The profile's token ID.
     * @param followModule The profile's newly set follow module. This CAN be the zero address.
     * @param followModuleReturnData The data returned from the follow module's initialization. This is abi encoded
     * and totally depends on the follow module chosen.
     * @param timestamp The current block timestamp.
     */
    event FollowModuleSet(
        uint256 indexed profileId,
        address followModule,
        bytes followModuleReturnData,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a "post" is published.
     *
     * @param profileId The profile's token ID.
     * @param pubId The new publication's ID.
     * @param contentURI The URI mapped to this new publication.
     * @param collectModule The collect module mapped to this new publication. This CANNOT be the zero address.
     * @param collectModuleReturnData The data returned from the collect module's initialization for this given
     * publication. This is abi encoded and totally depends on the collect module chosen.
     * @param referenceModule The reference module set for this publication.
     * @param referenceModuleReturnData The data returned from the reference module at initialization. This is abi
     * encoded and totally depends on the reference module chosen.
     * @param timestamp The current block timestamp.
     */
    event PostCreated(
        uint256 indexed profileId,
        uint256 indexed pubId,
        string contentURI,
        address collectModule,
        bytes collectModuleReturnData,
        address referenceModule,
        bytes referenceModuleReturnData,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a "comment" is published.
     *
     * @param profileId The profile's token ID.
     * @param pubId The new publication's ID.
     * @param contentURI The URI mapped to this new publication.
     * @param profileIdPointed The profile token ID that this comment points to.
     * @param pubIdPointed The publication ID that this comment points to.
     * @param referenceModuleData The data passed to the reference module.
     * @param collectModule The collect module mapped to this new publication. This CANNOT be the zero address.
     * @param collectModuleReturnData The data returned from the collect module's initialization for this given
     * publication. This is abi encoded and totally depends on the collect module chosen.
     * @param referenceModule The reference module set for this publication.
     * @param referenceModuleReturnData The data returned from the reference module at initialization. This is abi
     * encoded and totally depends on the reference module chosen.
     * @param timestamp The current block timestamp.
     */
    event CommentCreated(
        uint256 indexed profileId,
        uint256 indexed pubId,
        string contentURI,
        uint256 profileIdPointed,
        uint256 pubIdPointed,
        bytes referenceModuleData,
        address collectModule,
        bytes collectModuleReturnData,
        address referenceModule,
        bytes referenceModuleReturnData,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a "mirror" is published.
     *
     * @param profileId The profile's token ID.
     * @param pubId The new publication's ID.
     * @param profileIdPointed The profile token ID that this mirror points to.
     * @param pubIdPointed The publication ID that this mirror points to.
     * @param referenceModuleData The data passed to the reference module.
     * @param referenceModule The reference module set for this publication.
     * @param referenceModuleReturnData The data returned from the reference module at initialization. This is abi
     * encoded and totally depends on the reference module chosen.
     * @param timestamp The current block timestamp.
     */
    event MirrorCreated(
        uint256 indexed profileId,
        uint256 indexed pubId,
        uint256 profileIdPointed,
        uint256 pubIdPointed,
        bytes referenceModuleData,
        address referenceModule,
        bytes referenceModuleReturnData,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a followNFT clone is deployed using a lazy deployment pattern.
     *
     * @param profileId The token ID of the profile to which this followNFT is associated.
     * @param followNFT The address of the newly deployed followNFT clone.
     * @param timestamp The current block timestamp.
     */
    event FollowNFTDeployed(
        uint256 indexed profileId,
        address indexed followNFT,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a collectNFT clone is deployed using a lazy deployment pattern.
     *
     * @param profileId The publisher's profile token ID.
     * @param pubId The publication associated with the newly deployed collectNFT clone's ID.
     * @param collectNFT The address of the newly deployed collectNFT clone.
     * @param timestamp The current block timestamp.
     */
    event CollectNFTDeployed(
        uint256 indexed profileId,
        uint256 indexed pubId,
        address indexed collectNFT,
        uint256 timestamp
    );

    /**
     * @dev Emitted upon a successful collect action.
     *
     * @param collector The address collecting the publication.
     * @param profileId The token ID of the profile that the collect was initiated towards, useful to differentiate mirrors.
     * @param pubId The publication ID that the collect was initiated towards, useful to differentiate mirrors.
     * @param rootProfileId The profile token ID of the profile whose publication is being collected.
     * @param rootPubId The publication ID of the publication being collected.
     * @param collectModuleData The data passed to the collect module.
     * @param timestamp The current block timestamp.
     */
    event Collected(
        address indexed collector,
        uint256 indexed profileId,
        uint256 indexed pubId,
        uint256 rootProfileId,
        uint256 rootPubId,
        bytes collectModuleData,
        uint256 timestamp
    );

    /**
     * @dev Emitted upon a successful follow action.
     *
     * @param follower The address following the given profiles.
     * @param profileIds The token ID array of the profiles being followed.
     * @param followModuleDatas The array of data parameters passed to each follow module.
     * @param timestamp The current block timestamp.
     */
    event Followed(
        address indexed follower,
        uint256[] profileIds,
        bytes[] followModuleDatas,
        uint256 timestamp
    );

    /**
     * @dev Emitted via callback when a followNFT is transferred.
     *
     * @param profileId The token ID of the profile associated with the followNFT being transferred.
     * @param followNFTId The followNFT being transferred's token ID.
     * @param from The address the followNFT is being transferred from.
     * @param to The address the followNFT is being transferred to.
     * @param timestamp The current block timestamp.
     */
    event FollowNFTTransferred(
        uint256 indexed profileId,
        uint256 indexed followNFTId,
        address from,
        address to,
        uint256 timestamp
    );

    /**
     * @dev Emitted via callback when a collectNFT is transferred.
     *
     * @param profileId The token ID of the profile associated with the collectNFT being transferred.
     * @param pubId The publication ID associated with the collectNFT being transferred.
     * @param collectNFTId The collectNFT being transferred's token ID.
     * @param from The address the collectNFT is being transferred from.
     * @param to The address the collectNFT is being transferred to.
     * @param timestamp The current block timestamp.
     */
    event CollectNFTTransferred(
        uint256 indexed profileId,
        uint256 indexed pubId,
        uint256 indexed collectNFTId,
        address from,
        address to,
        uint256 timestamp
    );

    // Collect/Follow NFT-Specific

    /**
     * @dev Emitted when a newly deployed follow NFT is initialized.
     *
     * @param profileId The token ID of the profile connected to this follow NFT.
     * @param timestamp The current block timestamp.
     */
    event FollowNFTInitialized(uint256 indexed profileId, uint256 timestamp);

    /**
     * @dev Emitted when delegation power in a FollowNFT is changed.
     *
     * @param delegate The delegate whose power has been changed.
     * @param newPower The new governance power mapped to the delegate.
     * @param timestamp The current block timestamp.
     */
    event FollowNFTDelegatedPowerChanged(
        address indexed delegate,
        uint256 indexed newPower,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a newly deployed collect NFT is initialized.
     *
     * @param profileId The token ID of the profile connected to the publication mapped to this collect NFT.
     * @param pubId The publication ID connected to the publication mapped to this collect NFT.
     * @param timestamp The current block timestamp.
     */
    event CollectNFTInitialized(
        uint256 indexed profileId,
        uint256 indexed pubId,
        uint256 timestamp
    );

    // Module-Specific

    /**
     * @notice Emitted when the ModuleGlobals governance address is set.
     *
     * @param prevGovernance The previous governance address.
     * @param newGovernance The new governance address set.
     * @param timestamp The current block timestamp.
     */
    event ModuleGlobalsGovernanceSet(
        address indexed prevGovernance,
        address indexed newGovernance,
        uint256 timestamp
    );

    /**
     * @notice Emitted when the ModuleGlobals treasury address is set.
     *
     * @param prevTreasury The previous treasury address.
     * @param newTreasury The new treasury address set.
     * @param timestamp The current block timestamp.
     */
    event ModuleGlobalsTreasurySet(
        address indexed prevTreasury,
        address indexed newTreasury,
        uint256 timestamp
    );

    /**
     * @notice Emitted when the ModuleGlobals treasury fee is set.
     *
     * @param prevTreasuryFee The previous treasury fee in BPS.
     * @param newTreasuryFee The new treasury fee in BPS.
     * @param timestamp The current block timestamp.
     */
    event ModuleGlobalsTreasuryFeeSet(
        uint16 indexed prevTreasuryFee,
        uint16 indexed newTreasuryFee,
        uint256 timestamp
    );

    /**
     * @notice Emitted when a currency is added to or removed from the ModuleGlobals whitelist.
     *
     * @param currency The currency address.
     * @param prevWhitelisted Whether or not the currency was previously whitelisted.
     * @param whitelisted Whether or not the currency is whitelisted.
     * @param timestamp The current block timestamp.
     */
    event ModuleGlobalsCurrencyWhitelisted(
        address indexed currency,
        bool indexed prevWhitelisted,
        bool indexed whitelisted,
        uint256 timestamp
    );

    /**
     * @notice Emitted when a module inheriting from the `FeeModuleBase` is constructed.
     *
     * @param moduleGlobals The ModuleGlobals contract address used.
     * @param timestamp The current block timestamp.
     */
    event FeeModuleBaseConstructed(address indexed moduleGlobals, uint256 timestamp);

    /**
     * @notice Emitted when a module inheriting from the `ModuleBase` is constructed.
     *
     * @param hub The LensHub contract address used.
     * @param timestamp The current block timestamp.
     */
    event ModuleBaseConstructed(address indexed hub, uint256 timestamp);

    /**
     * @notice Emitted when one or multiple addresses are approved (or disapproved) for following in
     * the `ApprovalFollowModule`.
     *
     * @param owner The profile owner who executed the approval.
     * @param profileId The profile ID that the follow approvals are granted/revoked for.
     * @param addresses The addresses that have had the follow approvals grnated/revoked.
     * @param approved Whether each corresponding address is now approved or disapproved.
     * @param timestamp The current block timestamp.
     */
    event FollowsApproved(
        address indexed owner,
        uint256 indexed profileId,
        address[] addresses,
        bool[] approved,
        uint256 timestamp
    );

    /**
     * @dev Emitted when the user wants to enable or disable follows in the `LensPeriphery`.
     *
     * @param owner The profile owner who executed the toggle.
     * @param profileIds The array of token IDs of the profiles each followNFT is associated with.
     * @param enabled The array of whether each FollowNFT's follow is enabled/disabled.
     * @param timestamp The current block timestamp.
     */
    event FollowsToggled(
        address indexed owner,
        uint256[] profileIds,
        bool[] enabled,
        uint256 timestamp
    );

    /**
     * @dev Emitted when the metadata associated with a profile is set in the `LensPeriphery`.
     *
     * @param profileId The profile ID the metadata is set for.
     * @param metadata The metadata set for the profile and user.
     * @param timestamp The current block timestamp.
     */
    event ProfileMetadataSet(uint256 indexed profileId, string metadata, uint256 timestamp);
}

File 6 of 20 : LensNFTBase.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

import {ILensNFTBase} from '../../interfaces/ILensNFTBase.sol';
import {Errors} from '../../libraries/Errors.sol';
import {DataTypes} from '../../libraries/DataTypes.sol';
import {Events} from '../../libraries/Events.sol';
import {ERC721Time} from './ERC721Time.sol';
import {ERC721Enumerable} from './ERC721Enumerable.sol';

/**
 * @title LensNFTBase
 * @author Lens Protocol
 *
 * @notice This is an abstract base contract to be inherited by other Lens Protocol NFTs, it includes
 * the slightly modified ERC721Enumerable, which itself inherits from the ERC721Time-- which adds an
 * internal operator approval setter, stores the mint timestamp for each token, and replaces the
 * constructor with an initializer.
 */
abstract contract LensNFTBase is ERC721Enumerable, ILensNFTBase {
    bytes32 internal constant EIP712_REVISION_HASH = keccak256('1');
    bytes32 internal constant PERMIT_TYPEHASH =
        keccak256('Permit(address spender,uint256 tokenId,uint256 nonce,uint256 deadline)');
    bytes32 internal constant PERMIT_FOR_ALL_TYPEHASH =
        keccak256(
            'PermitForAll(address owner,address operator,bool approved,uint256 nonce,uint256 deadline)'
        );
    bytes32 internal constant BURN_WITH_SIG_TYPEHASH =
        keccak256('BurnWithSig(uint256 tokenId,uint256 nonce,uint256 deadline)');
    bytes32 internal constant EIP712_DOMAIN_TYPEHASH =
        keccak256(
            'EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'
        );

    mapping(address => uint256) public sigNonces;

    /**
     * @notice Initializer sets the name, symbol and the cached domain separator.
     *
     * NOTE: Inheritor contracts *must* call this function to initialize the name & symbol in the
     * inherited ERC721 contract.
     *
     * @param name The name to set in the ERC721 contract.
     * @param symbol The symbol to set in the ERC721 contract.
     */
    function _initialize(string calldata name, string calldata symbol) internal {
        ERC721Time.__ERC721_Init(name, symbol);

        emit Events.BaseInitialized(name, symbol, block.timestamp);
    }

    /// @inheritdoc ILensNFTBase
    function permit(
        address spender,
        uint256 tokenId,
        DataTypes.EIP712Signature calldata sig
    ) external override {
        if (spender == address(0)) revert Errors.ZeroSpender();
        address owner = ownerOf(tokenId);
        unchecked {
            _validateRecoveredAddress(
                _calculateDigest(
                    keccak256(
                        abi.encode(
                            PERMIT_TYPEHASH,
                            spender,
                            tokenId,
                            sigNonces[owner]++,
                            sig.deadline
                        )
                    )
                ),
                owner,
                sig
            );
        }
        _approve(spender, tokenId);
    }

    /// @inheritdoc ILensNFTBase
    function permitForAll(
        address owner,
        address operator,
        bool approved,
        DataTypes.EIP712Signature calldata sig
    ) external override {
        if (operator == address(0)) revert Errors.ZeroSpender();
        unchecked {
            _validateRecoveredAddress(
                _calculateDigest(
                    keccak256(
                        abi.encode(
                            PERMIT_FOR_ALL_TYPEHASH,
                            owner,
                            operator,
                            approved,
                            sigNonces[owner]++,
                            sig.deadline
                        )
                    )
                ),
                owner,
                sig
            );
        }
        _setOperatorApproval(owner, operator, approved);
    }

    /// @inheritdoc ILensNFTBase
    function getDomainSeparator() external view override returns (bytes32) {
        return _calculateDomainSeparator();
    }

    /// @inheritdoc ILensNFTBase
    function burn(uint256 tokenId) public virtual override {
        if (!_isApprovedOrOwner(msg.sender, tokenId)) revert Errors.NotOwnerOrApproved();
        _burn(tokenId);
    }

    /// @inheritdoc ILensNFTBase
    function burnWithSig(uint256 tokenId, DataTypes.EIP712Signature calldata sig)
        public
        virtual
        override
    {
        address owner = ownerOf(tokenId);
        unchecked {
            _validateRecoveredAddress(
                _calculateDigest(
                    keccak256(
                        abi.encode(
                            BURN_WITH_SIG_TYPEHASH,
                            tokenId,
                            sigNonces[owner]++,
                            sig.deadline
                        )
                    )
                ),
                owner,
                sig
            );
        }
        _burn(tokenId);
    }

    /**
     * @dev Wrapper for ecrecover to reduce code size, used in meta-tx specific functions.
     */
    function _validateRecoveredAddress(
        bytes32 digest,
        address expectedAddress,
        DataTypes.EIP712Signature calldata sig
    ) internal view {
        if (sig.deadline < block.timestamp) revert Errors.SignatureExpired();
        address recoveredAddress = ecrecover(digest, sig.v, sig.r, sig.s);
        if (recoveredAddress == address(0) || recoveredAddress != expectedAddress)
            revert Errors.SignatureInvalid();
    }

    /**
     * @dev Calculates EIP712 DOMAIN_SEPARATOR based on the current contract and chain ID.
     */
    function _calculateDomainSeparator() internal view returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    EIP712_DOMAIN_TYPEHASH,
                    keccak256(bytes(name())),
                    EIP712_REVISION_HASH,
                    block.chainid,
                    address(this)
                )
            );
    }

    /**
     * @dev Calculates EIP712 digest based on the current DOMAIN_SEPARATOR.
     *
     * @param hashedMessage The message hash from which the digest should be calculated.
     *
     * @return bytes32 A 32-byte output representing the EIP712 digest.
     */
    function _calculateDigest(bytes32 hashedMessage) internal view returns (bytes32) {
        bytes32 digest;
        unchecked {
            digest = keccak256(
                abi.encodePacked('\x19\x01', _calculateDomainSeparator(), hashedMessage)
            );
        }
        return digest;
    }
}

File 7 of 20 : DataTypes.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

/**
 * @title DataTypes
 * @author Lens Protocol
 *
 * @notice A standard library of data types used throughout the Lens Protocol.
 */
library DataTypes {
    /**
     * @notice An enum containing the different states the protocol can be in, limiting certain actions.
     *
     * @param Unpaused The fully unpaused state.
     * @param PublishingPaused The state where only publication creation functions are paused.
     * @param Paused The fully paused state.
     */
    enum ProtocolState {
        Unpaused,
        PublishingPaused,
        Paused
    }

    /**
     * @notice An enum specifically used in a helper function to easily retrieve the publication type for integrations.
     *
     * @param Post A standard post, having a URI, a collect module but no pointer to another publication.
     * @param Comment A comment, having a URI, a collect module and a pointer to another publication.
     * @param Mirror A mirror, having a pointer to another publication, but no URI or collect module.
     * @param Nonexistent An indicator showing the queried publication does not exist.
     */
    enum PubType {
        Post,
        Comment,
        Mirror,
        Nonexistent
    }

    /**
     * @notice A struct containing the necessary information to reconstruct an EIP-712 typed data signature.
     *
     * @param v The signature's recovery parameter.
     * @param r The signature's r parameter.
     * @param s The signature's s parameter
     * @param deadline The signature's deadline
     */
    struct EIP712Signature {
        uint8 v;
        bytes32 r;
        bytes32 s;
        uint256 deadline;
    }

    /**
     * @notice A struct containing profile data.
     *
     * @param pubCount The number of publications made to this profile.
     * @param followModule The address of the current follow module in use by this profile, can be empty.
     * @param followNFT The address of the followNFT associated with this profile, can be empty..
     * @param handle The profile's associated handle.
     * @param imageURI The URI to be used for the profile's image.
     * @param followNFTURI The URI to be used for the follow NFT.
     */
    struct ProfileStruct {
        uint256 pubCount;
        address followModule;
        address followNFT;
        string handle;
        string imageURI;
        string followNFTURI;
    }

    /**
     * @notice A struct containing data associated with each new publication.
     *
     * @param profileIdPointed The profile token ID this publication points to, for mirrors and comments.
     * @param pubIdPointed The publication ID this publication points to, for mirrors and comments.
     * @param contentURI The URI associated with this publication.
     * @param referenceModule The address of the current reference module in use by this profile, can be empty.
     * @param collectModule The address of the collect module associated with this publication, this exists for all publication.
     * @param collectNFT The address of the collectNFT associated with this publication, if any.
     */
    struct PublicationStruct {
        uint256 profileIdPointed;
        uint256 pubIdPointed;
        string contentURI;
        address referenceModule;
        address collectModule;
        address collectNFT;
    }

    /**
     * @notice A struct containing the parameters required for the `createProfile()` function.
     *
     * @param to The address receiving the profile.
     * @param handle The handle to set for the profile, must be unique and non-empty.
     * @param imageURI The URI to set for the profile image.
     * @param followModule The follow module to use, can be the zero address.
     * @param followModuleInitData The follow module initialization data, if any.
     * @param followNFTURI The URI to use for the follow NFT.
     */
    struct CreateProfileData {
        address to;
        string handle;
        string imageURI;
        address followModule;
        bytes followModuleInitData;
        string followNFTURI;
    }

    /**
     * @notice A struct containing the parameters required for the `setDefaultProfileWithSig()` function. Parameters are
     * the same as the regular `setDefaultProfile()` function, with an added EIP712Signature.
     *
     * @param wallet The address of the wallet setting the default profile.
     * @param profileId The token ID of the profile which will be set as default, or zero.
     * @param sig The EIP712Signature struct containing the profile owner's signature.
     */
    struct SetDefaultProfileWithSigData {
        address wallet;
        uint256 profileId;
        EIP712Signature sig;
    }

    /**
     * @notice A struct containing the parameters required for the `setFollowModuleWithSig()` function. Parameters are
     * the same as the regular `setFollowModule()` function, with an added EIP712Signature.
     *
     * @param profileId The token ID of the profile to change the followModule for.
     * @param followModule The followModule to set for the given profile, must be whitelisted.
     * @param followModuleInitData The data to be passed to the followModule for initialization.
     * @param sig The EIP712Signature struct containing the profile owner's signature.
     */
    struct SetFollowModuleWithSigData {
        uint256 profileId;
        address followModule;
        bytes followModuleInitData;
        EIP712Signature sig;
    }

    /**
     * @notice A struct containing the parameters required for the `setDispatcherWithSig()` function. Parameters are the same
     * as the regular `setDispatcher()` function, with an added EIP712Signature.
     *
     * @param profileId The token ID of the profile to set the dispatcher for.
     * @param dispatcher The dispatcher address to set for the profile.
     * @param sig The EIP712Signature struct containing the profile owner's signature.
     */
    struct SetDispatcherWithSigData {
        uint256 profileId;
        address dispatcher;
        EIP712Signature sig;
    }

    /**
     * @notice A struct containing the parameters required for the `setProfileImageURIWithSig()` function. Parameters are the same
     * as the regular `setProfileImageURI()` function, with an added EIP712Signature.
     *
     * @param profileId The token ID of the profile to set the URI for.
     * @param imageURI The URI to set for the given profile image.
     * @param sig The EIP712Signature struct containing the profile owner's signature.
     */
    struct SetProfileImageURIWithSigData {
        uint256 profileId;
        string imageURI;
        EIP712Signature sig;
    }

    /**
     * @notice A struct containing the parameters required for the `setFollowNFTURIWithSig()` function. Parameters are the same
     * as the regular `setFollowNFTURI()` function, with an added EIP712Signature.
     *
     * @param profileId The token ID of the profile for which to set the followNFT URI.
     * @param followNFTURI The follow NFT URI to set.
     * @param sig The EIP712Signature struct containing the followNFT's associated profile owner's signature.
     */
    struct SetFollowNFTURIWithSigData {
        uint256 profileId;
        string followNFTURI;
        EIP712Signature sig;
    }

    /**
     * @notice A struct containing the parameters required for the `post()` function.
     *
     * @param profileId The token ID of the profile to publish to.
     * @param contentURI The URI to set for this new publication.
     * @param collectModule The collect module to set for this new publication.
     * @param collectModuleInitData The data to pass to the collect module's initialization.
     * @param referenceModule The reference module to set for the given publication, must be whitelisted.
     * @param referenceModuleInitData The data to be passed to the reference module for initialization.
     */
    struct PostData {
        uint256 profileId;
        string contentURI;
        address collectModule;
        bytes collectModuleInitData;
        address referenceModule;
        bytes referenceModuleInitData;
    }

    /**
     * @notice A struct containing the parameters required for the `postWithSig()` function. Parameters are the same as
     * the regular `post()` function, with an added EIP712Signature.
     *
     * @param profileId The token ID of the profile to publish to.
     * @param contentURI The URI to set for this new publication.
     * @param collectModule The collectModule to set for this new publication.
     * @param collectModuleInitData The data to pass to the collectModule's initialization.
     * @param referenceModule The reference module to set for the given publication, must be whitelisted.
     * @param referenceModuleInitData The data to be passed to the reference module for initialization.
     * @param sig The EIP712Signature struct containing the profile owner's signature.
     */
    struct PostWithSigData {
        uint256 profileId;
        string contentURI;
        address collectModule;
        bytes collectModuleInitData;
        address referenceModule;
        bytes referenceModuleInitData;
        EIP712Signature sig;
    }

    /**
     * @notice A struct containing the parameters required for the `comment()` function.
     *
     * @param profileId The token ID of the profile to publish to.
     * @param contentURI The URI to set for this new publication.
     * @param profileIdPointed The profile token ID to point the comment to.
     * @param pubIdPointed The publication ID to point the comment to.
     * @param referenceModuleData The data passed to the reference module.
     * @param collectModule The collect module to set for this new publication.
     * @param collectModuleInitData The data to pass to the collect module's initialization.
     * @param referenceModule The reference module to set for the given publication, must be whitelisted.
     * @param referenceModuleInitData The data to be passed to the reference module for initialization.
     */
    struct CommentData {
        uint256 profileId;
        string contentURI;
        uint256 profileIdPointed;
        uint256 pubIdPointed;
        bytes referenceModuleData;
        address collectModule;
        bytes collectModuleInitData;
        address referenceModule;
        bytes referenceModuleInitData;
    }

    /**
     * @notice A struct containing the parameters required for the `commentWithSig()` function. Parameters are the same as
     * the regular `comment()` function, with an added EIP712Signature.
     *
     * @param profileId The token ID of the profile to publish to.
     * @param contentURI The URI to set for this new publication.
     * @param profileIdPointed The profile token ID to point the comment to.
     * @param pubIdPointed The publication ID to point the comment to.
     * @param referenceModuleData The data passed to the reference module.
     * @param collectModule The collectModule to set for this new publication.
     * @param collectModuleInitData The data to pass to the collectModule's initialization.
     * @param referenceModule The reference module to set for the given publication, must be whitelisted.
     * @param referenceModuleInitData The data to be passed to the reference module for initialization.
     * @param sig The EIP712Signature struct containing the profile owner's signature.
     */
    struct CommentWithSigData {
        uint256 profileId;
        string contentURI;
        uint256 profileIdPointed;
        uint256 pubIdPointed;
        bytes referenceModuleData;
        address collectModule;
        bytes collectModuleInitData;
        address referenceModule;
        bytes referenceModuleInitData;
        EIP712Signature sig;
    }

    /**
     * @notice A struct containing the parameters required for the `mirror()` function.
     *
     * @param profileId The token ID of the profile to publish to.
     * @param profileIdPointed The profile token ID to point the mirror to.
     * @param pubIdPointed The publication ID to point the mirror to.
     * @param referenceModuleData The data passed to the reference module.
     * @param referenceModule The reference module to set for the given publication, must be whitelisted.
     * @param referenceModuleInitData The data to be passed to the reference module for initialization.
     */
    struct MirrorData {
        uint256 profileId;
        uint256 profileIdPointed;
        uint256 pubIdPointed;
        bytes referenceModuleData;
        address referenceModule;
        bytes referenceModuleInitData;
    }

    /**
     * @notice A struct containing the parameters required for the `mirrorWithSig()` function. Parameters are the same as
     * the regular `mirror()` function, with an added EIP712Signature.
     *
     * @param profileId The token ID of the profile to publish to.
     * @param profileIdPointed The profile token ID to point the mirror to.
     * @param pubIdPointed The publication ID to point the mirror to.
     * @param referenceModuleData The data passed to the reference module.
     * @param referenceModule The reference module to set for the given publication, must be whitelisted.
     * @param referenceModuleInitData The data to be passed to the reference module for initialization.
     * @param sig The EIP712Signature struct containing the profile owner's signature.
     */
    struct MirrorWithSigData {
        uint256 profileId;
        uint256 profileIdPointed;
        uint256 pubIdPointed;
        bytes referenceModuleData;
        address referenceModule;
        bytes referenceModuleInitData;
        EIP712Signature sig;
    }

    /**
     * @notice A struct containing the parameters required for the `followWithSig()` function. Parameters are the same
     * as the regular `follow()` function, with the follower's (signer) address and an EIP712Signature added.
     *
     * @param follower The follower which is the message signer.
     * @param profileIds The array of token IDs of the profiles to follow.
     * @param datas The array of arbitrary data to pass to the followModules if needed.
     * @param sig The EIP712Signature struct containing the follower's signature.
     */
    struct FollowWithSigData {
        address follower;
        uint256[] profileIds;
        bytes[] datas;
        EIP712Signature sig;
    }

    /**
     * @notice A struct containing the parameters required for the `collectWithSig()` function. Parameters are the same as
     * the regular `collect()` function, with the collector's (signer) address and an EIP712Signature added.
     *
     * @param collector The collector which is the message signer.
     * @param profileId The token ID of the profile that published the publication to collect.
     * @param pubId The publication to collect's publication ID.
     * @param data The arbitrary data to pass to the collectModule if needed.
     * @param sig The EIP712Signature struct containing the collector's signature.
     */
    struct CollectWithSigData {
        address collector;
        uint256 profileId;
        uint256 pubId;
        bytes data;
        EIP712Signature sig;
    }

    /**
     * @notice A struct containing the parameters required for the `setProfileMetadataWithSig()` function.
     *
     * @param profileId The profile ID for which to set the metadata.
     * @param metadata The metadata string to set for the profile and user.
     * @param sig The EIP712Signature struct containing the user's signature.
     */
    struct SetProfileMetadataWithSigData {
        uint256 profileId;
        string metadata;
        EIP712Signature sig;
    }

    /**
     * @notice A struct containing the parameters required for the `toggleFollowWithSig()` function.
     *
     * @param follower The follower which is the message signer.
     * @param profileIds The token ID array of the profiles.
     * @param enables The array of booleans to enable/disable follows.
     * @param sig The EIP712Signature struct containing the follower's signature.
     */
    struct ToggleFollowWithSigData {
        address follower;
        uint256[] profileIds;
        bool[] enables;
        EIP712Signature sig;
    }
}

File 8 of 20 : ILensNFTBase.sol
// SPDX-License-Identifier: MIT

pragma solidity 0.8.10;

import {DataTypes} from '../libraries/DataTypes.sol';

/**
 * @title ILensNFTBase
 * @author Lens Protocol
 *
 * @notice This is the interface for the LensNFTBase contract, from which all Lens NFTs inherit.
 * It is an expansion of a very slightly modified ERC721Enumerable contract, which allows expanded
 * meta-transaction functionality.
 */
interface ILensNFTBase {
    /**
     * @notice Implementation of an EIP-712 permit function for an ERC-721 NFT. We don't need to check
     * if the tokenId exists, since the function calls ownerOf(tokenId), which reverts if the tokenId does
     * not exist.
     *
     * @param spender The NFT spender.
     * @param tokenId The NFT token ID to approve.
     * @param sig The EIP712 signature struct.
     */
    function permit(
        address spender,
        uint256 tokenId,
        DataTypes.EIP712Signature calldata sig
    ) external;

    /**
     * @notice Implementation of an EIP-712 permit-style function for ERC-721 operator approvals. Allows
     * an operator address to control all NFTs a given owner owns.
     *
     * @param owner The owner to set operator approvals for.
     * @param operator The operator to approve.
     * @param approved Whether to approve or revoke approval from the operator.
     * @param sig The EIP712 signature struct.
     */
    function permitForAll(
        address owner,
        address operator,
        bool approved,
        DataTypes.EIP712Signature calldata sig
    ) external;

    /**
     * @notice Burns an NFT, removing it from circulation and essentially destroying it. This function can only
     * be called by the NFT to burn's owner.
     *
     * @param tokenId The token ID of the token to burn.
     */
    function burn(uint256 tokenId) external;

    /**
     * @notice Implementation of an EIP-712 permit-style function for token burning. Allows anyone to burn
     * a token on behalf of the owner with a signature.
     *
     * @param tokenId The token ID of the token to burn.
     * @param sig The EIP712 signature struct.
     */
    function burnWithSig(uint256 tokenId, DataTypes.EIP712Signature calldata sig) external;

    /**
     * @notice Returns the domain separator for this NFT contract.
     *
     * @return bytes32 The domain separator.
     */
    function getDomainSeparator() external view returns (bytes32);
}

File 9 of 20 : ERC721Time.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import './IERC721Time.sol';
import '@openzeppelin/contracts/token/ERC721/IERC721Receiver.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';
import '@openzeppelin/contracts/utils/Address.sol';
import '@openzeppelin/contracts/utils/Context.sol';
import '@openzeppelin/contracts/utils/Strings.sol';
import '@openzeppelin/contracts/utils/introspection/ERC165.sol';

/**
 * @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
 * the Metadata extension, but not including the Enumerable extension, which is available separately as
 * {ERC721Enumerable}.
 *
 * Modifications:
 * 1. Refactored _operatorApprovals setter into an internal function to allow meta-transactions.
 * 2. Constructor replaced with an initializer.
 * 3. Mint timestamp is now stored in a TokenData struct alongside the owner address.
 */
abstract contract ERC721Time is Context, ERC165, IERC721Time, IERC721Metadata {
    using Address for address;
    using Strings for uint256;

    // Token name
    string private _name;

    // Token symbol
    string private _symbol;

    // Mapping from token ID to token Data (owner address and mint timestamp uint96), this
    // replaces the original mapping(uint256 => address) private _owners;
    mapping(uint256 => IERC721Time.TokenData) private _tokenData;

    // Mapping owner address to token count
    mapping(address => uint256) private _balances;

    // Mapping from token ID to approved address
    mapping(uint256 => address) private _tokenApprovals;

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

    /**
     * @dev Initializes the ERC721 name and symbol.
     *
     * @param name The name to set.
     * @param symbol The symbol to set.
     */
    function __ERC721_Init(string calldata name, string calldata symbol) internal {
        _name = name;
        _symbol = symbol;
    }

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        override(ERC165, IERC165)
        returns (bool)
    {
        return
            interfaceId == type(IERC721).interfaceId ||
            interfaceId == type(IERC721Metadata).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721-balanceOf}.
     */
    function balanceOf(address owner) public view virtual override returns (uint256) {
        require(owner != address(0), 'ERC721: balance query for the zero address');
        return _balances[owner];
    }

    /**
     * @dev See {IERC721-ownerOf}.
     */
    function ownerOf(uint256 tokenId) public view virtual override returns (address) {
        address owner = _tokenData[tokenId].owner;
        require(owner != address(0), 'ERC721: owner query for nonexistent token');
        return owner;
    }

    /**
     * @dev See {IERC721Time-mintTimestampOf}
     */
    function mintTimestampOf(uint256 tokenId) public view virtual override returns (uint256) {
        uint96 mintTimestamp = _tokenData[tokenId].mintTimestamp;
        require(mintTimestamp != 0, 'ERC721: mint timestamp query for nonexistent token');
        return mintTimestamp;
    }

    /**
     * @dev See {IERC721Time-mintTimestampOf}
     */
    function tokenDataOf(uint256 tokenId)
        public
        view
        virtual
        override
        returns (IERC721Time.TokenData memory)
    {
        require(_exists(tokenId), 'ERC721: token data query for nonexistent token');
        return _tokenData[tokenId];
    }

    /**
     * @dev See {IERC721Time-exists}
     */
    function exists(uint256 tokenId) public view virtual override returns (bool) {
        return _exists(tokenId);
    }

    /**
     * @dev See {IERC721Metadata-name}.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev See {IERC721Metadata-symbol}.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {IERC721Metadata-tokenURI}.
     */
    function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
        require(_exists(tokenId), 'ERC721Metadata: URI query for nonexistent token');

        string memory baseURI = _baseURI();
        return
            bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : '';
    }

    /**
     * @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
     * token will be the concatenation of the `baseURI` and the `tokenId`. Empty
     * by default, can be overriden in child contracts.
     */
    function _baseURI() internal view virtual returns (string memory) {
        return '';
    }

    /**
     * @dev See {IERC721-approve}.
     */
    function approve(address to, uint256 tokenId) public virtual override {
        address owner = ERC721Time.ownerOf(tokenId);
        require(to != owner, 'ERC721: approval to current owner');

        require(
            _msgSender() == owner || isApprovedForAll(owner, _msgSender()),
            'ERC721: approve caller is not owner nor approved for all'
        );

        _approve(to, tokenId);
    }

    /**
     * @dev See {IERC721-getApproved}.
     */
    function getApproved(uint256 tokenId) public view virtual override returns (address) {
        require(_exists(tokenId), 'ERC721: approved query for nonexistent token');

        return _tokenApprovals[tokenId];
    }

    /**
     * @dev See {IERC721-setApprovalForAll}.
     */
    function setApprovalForAll(address operator, bool approved) public virtual override {
        require(operator != _msgSender(), 'ERC721: approve to caller');

        _setOperatorApproval(_msgSender(), operator, approved);
    }

    /**
     * @dev See {IERC721-isApprovedForAll}.
     */
    function isApprovedForAll(address owner, address operator)
        public
        view
        virtual
        override
        returns (bool)
    {
        return _operatorApprovals[owner][operator];
    }

    /**
     * @dev See {IERC721-transferFrom}.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        //solhint-disable-next-line max-line-length
        require(
            _isApprovedOrOwner(_msgSender(), tokenId),
            'ERC721: transfer caller is not owner nor approved'
        );

        _transfer(from, to, tokenId);
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) public virtual override {
        safeTransferFrom(from, to, tokenId, '');
    }

    /**
     * @dev See {IERC721-safeTransferFrom}.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) public virtual override {
        require(
            _isApprovedOrOwner(_msgSender(), tokenId),
            'ERC721: transfer caller is not owner nor approved'
        );
        _safeTransfer(from, to, tokenId, _data);
    }

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * `_data` is additional data, it has no specified format and it is sent in call to `to`.
     *
     * This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
     * implement alternative mechanisms to perform token transfer, such as signature-based.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _transfer(from, to, tokenId);
        require(
            _checkOnERC721Received(from, to, tokenId, _data),
            'ERC721: transfer to non ERC721Receiver implementer'
        );
    }

    /**
     * @dev Returns whether `tokenId` exists.
     *
     * Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
     *
     * Tokens start existing when they are minted (`_mint`),
     * and stop existing when they are burned (`_burn`).
     */
    function _exists(uint256 tokenId) internal view virtual returns (bool) {
        return _tokenData[tokenId].owner != address(0);
    }

    /**
     * @dev Returns whether `spender` is allowed to manage `tokenId`.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function _isApprovedOrOwner(address spender, uint256 tokenId)
        internal
        view
        virtual
        returns (bool)
    {
        require(_exists(tokenId), 'ERC721: operator query for nonexistent token');
        address owner = ERC721Time.ownerOf(tokenId);
        return (spender == owner ||
            getApproved(tokenId) == spender ||
            isApprovedForAll(owner, spender));
    }

    /**
     * @dev Safely mints `tokenId` and transfers it to `to`.
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function _safeMint(address to, uint256 tokenId) internal virtual {
        _safeMint(to, tokenId, '');
    }

    /**
     * @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
     * forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
     */
    function _safeMint(
        address to,
        uint256 tokenId,
        bytes memory _data
    ) internal virtual {
        _mint(to, tokenId);
        require(
            _checkOnERC721Received(address(0), to, tokenId, _data),
            'ERC721: transfer to non ERC721Receiver implementer'
        );
    }

    /**
     * @dev Mints `tokenId` and transfers it to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
     *
     * Requirements:
     *
     * - `tokenId` must not exist.
     * - `to` cannot be the zero address.
     *
     * Emits a {Transfer} event.
     */
    function _mint(address to, uint256 tokenId) internal virtual {
        require(to != address(0), 'ERC721: mint to the zero address');
        require(!_exists(tokenId), 'ERC721: token already minted');

        _beforeTokenTransfer(address(0), to, tokenId);

        _balances[to] += 1;
        _tokenData[tokenId].owner = to;
        _tokenData[tokenId].mintTimestamp = uint96(block.timestamp);

        emit Transfer(address(0), to, tokenId);
    }

    /**
     * @dev Destroys `tokenId`.
     * The approval is cleared when the token is burned.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     *
     * Emits a {Transfer} event.
     */
    function _burn(uint256 tokenId) internal virtual {
        address owner = ERC721Time.ownerOf(tokenId);

        _beforeTokenTransfer(owner, address(0), tokenId);

        // Clear approvals
        _approve(address(0), tokenId);

        _balances[owner] -= 1;
        delete _tokenData[tokenId];

        emit Transfer(owner, address(0), tokenId);
    }

    /**
     * @dev Transfers `tokenId` from `from` to `to`.
     *  As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     *
     * Emits a {Transfer} event.
     */
    function _transfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual {
        require(ERC721Time.ownerOf(tokenId) == from, 'ERC721: transfer of token that is not own');
        require(to != address(0), 'ERC721: transfer to the zero address');

        _beforeTokenTransfer(from, to, tokenId);

        // Clear approvals from the previous owner
        _approve(address(0), tokenId);

        _balances[from] -= 1;
        _balances[to] += 1;
        _tokenData[tokenId].owner = to;

        emit Transfer(from, to, tokenId);
    }

    /**
     * @dev Approve `to` to operate on `tokenId`
     *
     * Emits a {Approval} event.
     */
    function _approve(address to, uint256 tokenId) internal virtual {
        _tokenApprovals[tokenId] = to;
        emit Approval(ERC721Time.ownerOf(tokenId), to, tokenId);
    }

    /**
     * @dev Refactored from the original OZ ERC721 implementation: approve or revoke approval from
     * `operator` to operate on all tokens owned by `owner`.
     *
     * Emits a {ApprovalForAll} event.
     */
    function _setOperatorApproval(
        address owner,
        address operator,
        bool approved
    ) internal virtual {
        _operatorApprovals[owner][operator] = approved;
        emit ApprovalForAll(owner, operator, approved);
    }

    /**
     * @dev Private function to invoke {IERC721Receiver-onERC721Received} on a target address.
     * The call is not executed if the target address is not a contract.
     *
     * @param from address representing the previous owner of the given token ID
     * @param to target address that will receive the tokens
     * @param tokenId uint256 ID of the token to be transferred
     * @param _data bytes optional data to send along with the call
     * @return bool whether the call correctly returned the expected magic value
     */
    function _checkOnERC721Received(
        address from,
        address to,
        uint256 tokenId,
        bytes memory _data
    ) private returns (bool) {
        if (to.isContract()) {
            try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (
                bytes4 retval
            ) {
                return retval == IERC721Receiver.onERC721Received.selector;
            } catch (bytes memory reason) {
                if (reason.length == 0) {
                    revert('ERC721: transfer to non ERC721Receiver implementer');
                } else {
                    assembly {
                        revert(add(32, reason), mload(reason))
                    }
                }
            }
        } else {
            return true;
        }
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` 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 tokenId
    ) internal virtual {}
}

File 10 of 20 : ERC721Enumerable.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import './ERC721Time.sol';
import '@openzeppelin/contracts/token/ERC721/extensions/IERC721Enumerable.sol';

/**
 * @dev This implements an optional extension of {ERC721} defined in the EIP that adds
 * enumerability of all the token ids in the contract as well as all token ids owned by each
 * account.
 *
 * NOTE: Modified from Openzeppelin to inherit from a modified ERC721 contract.
 */
abstract contract ERC721Enumerable is ERC721Time, IERC721Enumerable {
    // Mapping from owner to list of owned token IDs
    mapping(address => mapping(uint256 => uint256)) private _ownedTokens;

    // Mapping from token ID to index of the owner tokens list
    mapping(uint256 => uint256) private _ownedTokensIndex;

    // Array with all token ids, used for enumeration
    uint256[] private _allTokens;

    // Mapping from token id to position in the allTokens array
    mapping(uint256 => uint256) private _allTokensIndex;

    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId)
        public
        view
        virtual
        override(IERC165, ERC721Time)
        returns (bool)
    {
        return
            interfaceId == type(IERC721Enumerable).interfaceId ||
            super.supportsInterface(interfaceId);
    }

    /**
     * @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index)
        public
        view
        virtual
        override
        returns (uint256)
    {
        require(index < ERC721Time.balanceOf(owner), 'ERC721Enumerable: owner index out of bounds');
        return _ownedTokens[owner][index];
    }

    /**
     * @dev See {IERC721Enumerable-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _allTokens.length;
    }

    /**
     * @dev See {IERC721Enumerable-tokenByIndex}.
     */
    function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
        require(
            index < ERC721Enumerable.totalSupply(),
            'ERC721Enumerable: global index out of bounds'
        );
        return _allTokens[index];
    }

    /**
     * @dev Hook that is called before any token transfer. This includes minting
     * and burning.
     *
     * Calling conditions:
     *
     * - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
     * transferred to `to`.
     * - When `from` is zero, `tokenId` will be minted for `to`.
     * - When `to` is zero, ``from``'s `tokenId` will be burned.
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 tokenId
    ) internal virtual override {
        super._beforeTokenTransfer(from, to, tokenId);

        if (from == address(0)) {
            _addTokenToAllTokensEnumeration(tokenId);
        } else if (from != to) {
            _removeTokenFromOwnerEnumeration(from, tokenId);
        }
        if (to == address(0)) {
            _removeTokenFromAllTokensEnumeration(tokenId);
        } else if (to != from) {
            _addTokenToOwnerEnumeration(to, tokenId);
        }
    }

    /**
     * @dev Private function to add a token to this extension's ownership-tracking data structures.
     * @param to address representing the new owner of the given token ID
     * @param tokenId uint256 ID of the token to be added to the tokens list of the given address
     */
    function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
        uint256 length = ERC721Time.balanceOf(to);
        _ownedTokens[to][length] = tokenId;
        _ownedTokensIndex[tokenId] = length;
    }

    /**
     * @dev Private function to add a token to this extension's token tracking data structures.
     * @param tokenId uint256 ID of the token to be added to the tokens list
     */
    function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
        _allTokensIndex[tokenId] = _allTokens.length;
        _allTokens.push(tokenId);
    }

    /**
     * @dev Private function to remove a token from this extension's ownership-tracking data structures. Note that
     * while the token is not assigned a new owner, the `_ownedTokensIndex` mapping is _not_ updated: this allows for
     * gas optimizations e.g. when performing a transfer operation (avoiding double writes).
     * This has O(1) time complexity, but alters the order of the _ownedTokens array.
     * @param from address representing the previous owner of the given token ID
     * @param tokenId uint256 ID of the token to be removed from the tokens list of the given address
     */
    function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
        // To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = ERC721Time.balanceOf(from) - 1;
        uint256 tokenIndex = _ownedTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary
        if (tokenIndex != lastTokenIndex) {
            uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];

            _ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
            _ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
        }

        // This also deletes the contents at the last position of the array
        delete _ownedTokensIndex[tokenId];
        delete _ownedTokens[from][lastTokenIndex];
    }

    /**
     * @dev Private function to remove a token from this extension's token tracking data structures.
     * This has O(1) time complexity, but alters the order of the _allTokens array.
     * @param tokenId uint256 ID of the token to be removed from the tokens list
     */
    function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
        // To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
        // then delete the last slot (swap and pop).

        uint256 lastTokenIndex = _allTokens.length - 1;
        uint256 tokenIndex = _allTokensIndex[tokenId];

        // When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
        // rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
        // an 'if' statement (like in _removeTokenFromOwnerEnumeration)
        uint256 lastTokenId = _allTokens[lastTokenIndex];

        _allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
        _allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index

        // This also deletes the contents at the last position of the array
        delete _allTokensIndex[tokenId];
        _allTokens.pop();
    }
}

File 11 of 20 : IERC721Time.sol
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import '@openzeppelin/contracts/token/ERC721/IERC721.sol';

/**
 * @title IERC721Time
 * @author Lens Protocol
 *
 * @notice This is an expansion of the IERC721 interface that includes a struct for token data,
 * which contains the token owner and the mint timestamp as well as associated getters.
 */
interface IERC721Time is IERC721 {
    /**
     * @notice Contains the owner address and the mint timestamp for every NFT.
     *
     * Note: Instead of the owner address in the _tokenOwners private mapping, we now store it in the
     * _tokenData mapping, alongside the unchanging mintTimestamp.
     *
     * @param owner The token owner.
     * @param mintTimestamp The mint timestamp.
     */
    struct TokenData {
        address owner;
        uint96 mintTimestamp;
    }

    /**
     * @notice Returns the mint timestamp associated with a given NFT, stored only once upon initial mint.
     *
     * @param tokenId The token ID of the NFT to query the mint timestamp for.
     *
     * @return uint256 mint timestamp, this is stored as a uint96 but returned as a uint256 to reduce unnecessary
     * padding.
     */
    function mintTimestampOf(uint256 tokenId) external view returns (uint256);

    /**
     * @notice Returns the token data associated with a given NFT. This allows fetching the token owner and
     * mint timestamp in a single call.
     *
     * @param tokenId The token ID of the NFT to query the token data for.
     *
     * @return TokenData token data struct containing both the owner address and the mint timestamp.
     */
    function tokenDataOf(uint256 tokenId) external view returns (TokenData memory);

    /**
     * @notice Returns whether a token with the given token ID exists.
     *
     * @param tokenId The token ID of the NFT to check existence for.
     *
     * @return bool True if the token exists.
     */
    function exists(uint256 tokenId) external view returns (bool);
}

File 12 of 20 : IERC721Receiver.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)

pragma solidity ^0.8.0;

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

File 13 of 20 : IERC721Metadata.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional metadata extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Metadata is IERC721 {
    /**
     * @dev Returns the token collection name.
     */
    function name() external view returns (string memory);

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

    /**
     * @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
     */
    function tokenURI(uint256 tokenId) external view returns (string memory);
}

File 14 of 20 : Address.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (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 functionCall(target, data, "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");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason 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 {
            // 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

File 15 of 20 : 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 16 of 20 : Strings.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

File 17 of 20 : 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 18 of 20 : IERC721.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;
}

File 19 of 20 : 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 20 of 20 : IERC721Enumerable.sol
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)

pragma solidity ^0.8.0;

import "../IERC721.sol";

/**
 * @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
 * @dev See https://eips.ethereum.org/EIPS/eip-721
 */
interface IERC721Enumerable is IERC721 {
    /**
     * @dev Returns the total amount of tokens stored by the contract.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns a token ID owned by `owner` at a given `index` of its token list.
     * Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
     */
    function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256);

    /**
     * @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
     * Use along with {totalSupply} to enumerate all tokens.
     */
    function tokenByIndex(uint256 index) external view returns (uint256);
}

Settings
{
  "optimizer": {
    "enabled": true,
    "runs": 200,
    "details": {
      "yul": true
    }
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

Contract ABI

[{"inputs":[{"internalType":"address","name":"hub","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"InitParamsInvalid","type":"error"},{"inputs":[],"name":"Initialized","type":"error"},{"inputs":[],"name":"NotHub","type":"error"},{"inputs":[],"name":"NotOwnerOrApproved","type":"error"},{"inputs":[],"name":"SignatureExpired","type":"error"},{"inputs":[],"name":"SignatureInvalid","type":"error"},{"inputs":[],"name":"TokenDoesNotExist","type":"error"},{"inputs":[],"name":"ZeroSpender","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"approved","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"operator","type":"address"},{"indexed":false,"internalType":"bool","name":"approved","type":"bool"}],"name":"ApprovalForAll","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"HUB","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"approve","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"burn","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"components":[{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"internalType":"struct DataTypes.EIP712Signature","name":"sig","type":"tuple"}],"name":"burnWithSig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"exists","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"getApproved","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getDomainSeparator","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getSourcePublicationPointer","outputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"profileId","type":"uint256"},{"internalType":"uint256","name":"pubId","type":"uint256"},{"internalType":"string","name":"name","type":"string"},{"internalType":"string","name":"symbol","type":"string"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"}],"name":"isApprovedForAll","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"mintTimestampOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"ownerOf","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"components":[{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"internalType":"struct DataTypes.EIP712Signature","name":"sig","type":"tuple"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"},{"components":[{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"internalType":"struct DataTypes.EIP712Signature","name":"sig","type":"tuple"}],"name":"permitForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"bytes","name":"_data","type":"bytes"}],"name":"safeTransferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"operator","type":"address"},{"internalType":"bool","name":"approved","type":"bool"}],"name":"setApprovalForAll","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"sigNonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenDataOf","outputs":[{"components":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint96","name":"mintTimestamp","type":"uint96"}],"internalType":"struct IERC721Time.TokenData","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"}],"name":"tokenOfOwnerByIndex","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"tokenURI","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"transferFrom","outputs":[],"stateMutability":"nonpayable","type":"function"}]

Block Transaction Gas Used Reward
Age Block Fee Address BC Fee Address Voting Power Jailed Incoming
Block Uncle Number Difficulty Gas Used Reward
Loading
Loading
Make sure to use the "Vote Down" button for any spammy posts, and the "Vote Up" for interesting conversations.