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// SPDX-License-Identifier: MIT

pragma solidity ^0.8.19;

import {ILensHub} from 'contracts/interfaces/ILensHub.sol';
import {Types} from 'contracts/libraries/constants/Types.sol';
import {IERC20} from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import {SafeERC20} from '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
import {CollectPublicationAction} from 'contracts/modules/act/collect/CollectPublicationAction.sol';
import {BaseProfilePublicationData, IBaseFeeCollectModule} from 'contracts/modules/interfaces/IBaseFeeCollectModule.sol';
import {MetaTxLib} from 'contracts/libraries/MetaTxLib.sol';

/// @title PublicActProxy
/// @author LensProtocol
/// @notice This contract allows anyone to Act on a publication without holding a profile
/// @dev This contract holds a profile (or is a DE of that profile) and acts on behalf of the caller
contract PublicActProxy {
    using SafeERC20 for IERC20;

    ILensHub public immutable HUB;
    CollectPublicationAction public immutable COLLECT_PUBLICATION_ACTION;

    uint[9] private __gap;
    mapping(address => uint256) private _nonces; // Slot 10 - to match with MetaTxLib/StorageLib

    constructor(address lensHub, address collectPublicationAction) {
        HUB = ILensHub(lensHub);
        COLLECT_PUBLICATION_ACTION = CollectPublicationAction(collectPublicationAction);
    }

    /*
        struct PublicationActionParams {
            publicationActedProfileId: ---
            publicationActedId: ---
            actorProfileId: this contract's profile
            referrerProfileIds: ---
            referrerPubIds: ---
            actionModuleAddress: ---
            actionModuleData: {
                collectNftRecipient: who shall receive the NFT
                collectData: {
                    expectedCurrency: should match what's stored in CollectModule
                    expectedAmount: should match what's stored in CollectModule
                }
            }
        }
    */

    // This contract should be the owner/DE of the publicationActionParams.actorProfileId
    // This contract should be set as publicationActionParams.transactionExecutor
    // Correct collectNftRecipient should be passed in the publicationActionParams.actionModuleData

    // This is pretty simple, but should follow the rules above:
    function publicFreeAct(Types.PublicationActionParams calldata publicationActionParams) external {
        HUB.act(publicationActionParams);
    }

    // For the paid collect to work, additional steps are required:
    // Collector should set enough allowance to this contract to pay for collect NFT
    // Funds will be taken from msg.sender
    // Funds will be approved from this contract to collectModule found in publication storage
    function publicCollect(Types.PublicationActionParams calldata publicationActionParams) external {
        _publicCollect(publicationActionParams, msg.sender);
    }

    function publicCollectWithSig(
        Types.PublicationActionParams calldata publicationActionParams,
        Types.EIP712Signature calldata signature
    ) external {
        MetaTxLib.validateActSignature(signature, publicationActionParams);
        _publicCollect(publicationActionParams, signature.signer);
    }

    function nonces(address signer) public view returns (uint256) {
        return _nonces[signer];
    }

    function incrementNonce(uint8 increment) external {
        MetaTxLib.incrementNonce(increment);
    }

    function _publicCollect(
        Types.PublicationActionParams calldata publicationActionParams,
        address transactionExecutor
    ) internal {
        address collectModule = COLLECT_PUBLICATION_ACTION
            .getCollectData(
                publicationActionParams.publicationActedProfileId,
                publicationActionParams.publicationActedId
            )
            .collectModule;

        BaseProfilePublicationData memory collectData = IBaseFeeCollectModule(collectModule).getBasePublicationData(
            publicationActionParams.publicationActedProfileId,
            publicationActionParams.publicationActedId
        );

        if (collectData.amount > 0) {
            IERC20(collectData.currency).safeTransferFrom(transactionExecutor, address(this), collectData.amount);
            IERC20(collectData.currency).safeIncreaseAllowance(collectModule, collectData.amount);
        }

        HUB.act(publicationActionParams);
    }

    function name() external pure returns (string memory) {
        return 'PublicActProxy';
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.15;

import {Errors} from 'contracts/libraries/constants/Errors.sol';

/**
 * @title HubRestricted
 * @author Lens Protocol
 *
 * @notice This abstract contract adds a public `HUB` immutable field, as well as an `onlyHub` modifier,
 * to inherit from contracts that have functions restricted to be only called by the Lens hub.
 */
abstract contract HubRestricted {
    address public immutable HUB;

    modifier onlyHub() {
        if (msg.sender != HUB) {
            revert Errors.NotHub();
        }
        _;
    }

    constructor(address hub) {
        HUB = hub;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

/**
 * @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.
     * @custom:permissions CollectPublicationAction.
     *
     * @param profileId The token ID of the profile in the hub that this Collect NFT points to.
     * @param pubId The profile publication ID in the hub that this Collect NFT points to.
     */
    function initialize(uint256 profileId, uint256 pubId) external;

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

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

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

/**
 * @title IERC721Burnable
 * @author Lens Protocol
 *
 * @notice Extension of ERC-721 including a function that allows the token to be burned.
 */
interface IERC721Burnable {
    /**
     * @notice Burns an NFT, removing it from circulation and essentially destroying it.
     * @custom:permission Owner of the NFT.
     *
     * @param tokenId The token ID of the token to burn.
     */
    function burn(uint256 tokenId) external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

/**
 * @title IERC721MetaTx
 * @author Lens Protocol
 *
 * @notice Extension of ERC-721 including meta-tx signatures related functions.
 */
interface IERC721MetaTx {
    /**
     * @notice Returns the current signature nonce of the given signer.
     *
     * @param signer The address for which to query the nonce.
     *
     * @return uint256 The current nonce of the given signer.
     */
    function nonces(address signer) external view returns (uint256);

    /**
     * @notice Returns the EIP-712 domain separator for this contract.
     *
     * @return bytes32 The domain separator.
     */
    function getDomainSeparator() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

import {Types} from 'contracts/libraries/constants/Types.sol';

/**
 * @title IERC721Timestamped
 * @author Lens Protocol
 *
 * @notice Extension of ERC-721 including a struct for token data, which contains the owner and the mint timestamp, as
 * well as their associated getters.
 */
interface IERC721Timestamped {
    /**
     * @notice Returns the mint timestamp associated with a given NFT.
     *
     * @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 A struct containing both the owner address and the mint timestamp.
     */
    function tokenDataOf(uint256 tokenId) external view returns (Types.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);

    /**
     * @notice Returns the amount of tokens in circulation.
     *
     * @return uint256 The current total supply of tokens.
     */
    function totalSupply() external view returns (uint256);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

import {IERC721} from '@openzeppelin/contracts/token/ERC721/IERC721.sol';
import {IERC721Timestamped} from 'contracts/interfaces/IERC721Timestamped.sol';
import {IERC721Burnable} from 'contracts/interfaces/IERC721Burnable.sol';
import {IERC721MetaTx} from 'contracts/interfaces/IERC721MetaTx.sol';
import {IERC721Metadata} from '@openzeppelin/contracts/token/ERC721/extensions/IERC721Metadata.sol';

interface ILensERC721 is IERC721, IERC721Timestamped, IERC721Burnable, IERC721MetaTx, IERC721Metadata {}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

import {Types} from 'contracts/libraries/constants/Types.sol';

/**
 * @title ILensGovernable
 * @author Lens Protocol
 *
 * @notice This is the interface for the Lens Protocol main governance functions.
 */
interface ILensGovernable {
    /**
     * @notice Sets the privileged governance role.
     * @custom:permissions Governance.
     *
     * @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.
     * @custom:permissions Governance.
     *
     * @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.
     * @custom:permissions Governance or Emergency Admin. Emergency Admin can only restrict more.
     *
     * @param newState The state to set. It can be one of the following:
     *  - Unpaused: The protocol is fully operational.
     *  - PublishingPaused: The protocol is paused for publishing, but it is still operational for others operations.
     *  - Paused: The protocol is paused for all operations.
     */
    function setState(Types.ProtocolState newState) external;

    /**
     * @notice Adds or removes a profile creator from the whitelist.
     * @custom:permissions Governance.
     *
     * @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 Sets the treasury address.
     * @custom:permissions Governance
     *
     * @param newTreasury The new treasury address to set.
     */
    function setTreasury(address newTreasury) external;

    /**
     * @notice Sets the treasury fee.
     * @custom:permissions Governance
     *
     * @param newTreasuryFee The new treasury fee to set.
     */
    function setTreasuryFee(uint16 newTreasuryFee) external;

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

    /**
     * @notice Gets the state currently set in the protocol. It could be a global pause, a publishing pause or an
     * unpaused state.
     * @custom:permissions Anyone.
     *
     * @return Types.ProtocolState The state currently set in the protocol.
     */
    function getState() external view returns (Types.ProtocolState);

    /**
     * @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 the treasury address.
     *
     * @return address The treasury address.
     */
    function getTreasury() external view returns (address);

    /**
     * @notice Returns the treasury fee.
     *
     * @return uint16 The treasury fee.
     */
    function getTreasuryFee() external view returns (uint16);

    /**
     * @notice Returns the treasury address and treasury fee in a single call.
     *
     * @return tuple First, the treasury address, second, the treasury fee.
     */
    function getTreasuryData() external view returns (address, uint16);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

import {ILensProtocol} from 'contracts/interfaces/ILensProtocol.sol';
import {ILensGovernable} from 'contracts/interfaces/ILensGovernable.sol';
import {ILensHubEventHooks} from 'contracts/interfaces/ILensHubEventHooks.sol';
import {ILensImplGetters} from 'contracts/interfaces/ILensImplGetters.sol';
import {ILensProfiles} from 'contracts/interfaces/ILensProfiles.sol';
import {ILensVersion} from 'contracts/interfaces/ILensVersion.sol';

interface ILensHub is
    ILensProfiles,
    ILensProtocol,
    ILensGovernable,
    ILensHubEventHooks,
    ILensImplGetters,
    ILensVersion
{}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

/**
 * @title ILensHubEventHooks
 * @author Lens Protocol
 *
 * @notice This is the interface for the LensHub contract's event hooks. As we want most of the core events to be
 * emitted by the LensHub contract, event hooks are needed for core events generated by pheripheral contracts.
 */
interface ILensHubEventHooks {
    /**
     * @dev Helper function to emit an `Unfollowed` event from the hub, to be consumed by indexers to track unfollows.
     * @custom:permissions FollowNFT of the Profile unfollowed.
     *
     * @param unfollowerProfileId The ID of the profile that executed the unfollow.
     * @param idOfProfileUnfollowed The ID of the profile that was unfollowed.
     * @param transactionExecutor The address of the account executing the unfollow operation.
     */
    function emitUnfollowedEvent(
        uint256 unfollowerProfileId,
        uint256 idOfProfileUnfollowed,
        address transactionExecutor
    ) external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

/**
 * @title ILensImplGetters
 * @author Lens Protocol
 *
 * @notice This is the interface for the LensHub contract's implementation getters. These implementations will be used
 * for deploying each respective contract for each profile.
 */
interface ILensImplGetters {
    /**
     * @notice Returns the Follow NFT implementation address that is used for all deployed Follow NFTs.
     *
     * @return address The Follow NFT implementation address.
     */
    function getFollowNFTImpl() external view returns (address);

    /**
     * @notice Returns the Collect NFT implementation address that is used for each new deployed Collect NFT.
     * @custom:pending-deprecation
     *
     * @return address The Collect NFT implementation address.
     */
    function getLegacyCollectNFTImpl() external view returns (address);

    /**
     * @notice Returns the address of the registry that stores all modules that are used by the Lens Protocol.
     *
     * @return address The address of the Module Registry contract.
     */
    function getModuleRegistry() external view returns (address);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

import {ILensERC721} from 'contracts/interfaces/ILensERC721.sol';

interface ILensProfiles is ILensERC721 {
    /**
     * @notice DANGER: Triggers disabling the profile protection mechanism for the msg.sender, which will allow
     * transfers or approvals over profiles held by it.
     * Disabling the mechanism will have a timelock before it becomes effective, allowing the owner to re-enable
     * the protection back in case of being under attack.
     * The protection layer only applies to EOA wallets.
     */
    function DANGER__disableTokenGuardian() external;

    /**
     * @notice Enables back the profile protection mechanism for the msg.sender, preventing profile transfers or
     * approvals (except when revoking them).
     * The protection layer only applies to EOA wallets.
     */
    function enableTokenGuardian() external;

    /**
     * @notice Returns the timestamp at which the Token Guardian will become effectively disabled.
     *
     * @param wallet The address to check the timestamp for.
     *
     * @return uint256 The timestamp at which the Token Guardian will become effectively disabled. Zero if enabled.
     */
    function getTokenGuardianDisablingTimestamp(address wallet) external view returns (uint256);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

import {Types} from 'contracts/libraries/constants/Types.sol';

/**
 * @title ILensProtocol
 * @author Lens Protocol
 *
 * @notice This is the interface for Lens Protocol's core functions. It contains all the entry points for performing
 * social operations.
 */
interface ILensProtocol {
    /**
     * @notice Creates a profile with the specified parameters, minting a Profile NFT to the given recipient.
     * @custom:permissions Any whitelisted profile creator.
     *
     * @param createProfileParams A CreateProfileParams struct containing the needed params.
     */
    function createProfile(Types.CreateProfileParams calldata createProfileParams) external returns (uint256);

    /**
     * @notice Sets the metadata URI for the given profile.
     * @custom:permissions Profile Owner or Delegated Executor.
     *
     * @param profileId The token ID of the profile to set the metadata URI for.
     * @param metadataURI The metadata URI to set for the given profile.
     */
    function setProfileMetadataURI(uint256 profileId, string calldata metadataURI) external;

    /**
     * @custom:meta-tx setProfileMetadataURI.
     */
    function setProfileMetadataURIWithSig(
        uint256 profileId,
        string calldata metadataURI,
        Types.EIP712Signature calldata signature
    ) external;

    /**
     * @notice Sets the follow module for the given profile.
     * @custom:permissions Profile Owner or Delegated Executor.
     *
     * @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;

    /**
     * @custom:meta-tx setFollowModule.
     */
    function setFollowModuleWithSig(
        uint256 profileId,
        address followModule,
        bytes calldata followModuleInitData,
        Types.EIP712Signature calldata signature
    ) external;

    /**
     * @notice Changes the delegated executors configuration for the given profile. It allows setting the approvals for
     * delegated executors in the specified configuration, as well as switching to it.
     * @custom:permissions Profile Owner.
     *
     * @param delegatorProfileId The ID of the profile to which the delegated executor is being changed for.
     * @param delegatedExecutors The array of delegated executors to set the approval for.
     * @param approvals The array of booleans indicating the corresponding executor's new approval status.
     * @param configNumber The number of the configuration where the executor approval state is being set.
     * @param switchToGivenConfig A boolean indicating if the configuration must be switched to the one with the given
     * number.
     */
    function changeDelegatedExecutorsConfig(
        uint256 delegatorProfileId,
        address[] calldata delegatedExecutors,
        bool[] calldata approvals,
        uint64 configNumber,
        bool switchToGivenConfig
    ) external;

    /**
     * @notice Changes the delegated executors configuration for the given profile under the current configuration.
     * @custom:permissions Profile Owner.
     *
     * @param delegatorProfileId The ID of the profile to which the delegated executor is being changed for.
     * @param delegatedExecutors The array of delegated executors to set the approval for.
     * @param approvals The array of booleans indicating the corresponding executor's new approval status.
     */
    function changeDelegatedExecutorsConfig(
        uint256 delegatorProfileId,
        address[] calldata delegatedExecutors,
        bool[] calldata approvals
    ) external;

    /**
     * @custom:meta-tx changeDelegatedExecutorsConfig.
     */
    function changeDelegatedExecutorsConfigWithSig(
        uint256 delegatorProfileId,
        address[] calldata delegatedExecutors,
        bool[] calldata approvals,
        uint64 configNumber,
        bool switchToGivenConfig,
        Types.EIP712Signature calldata signature
    ) external;

    /**
     * @notice Publishes a post.
     * Post is the most basic publication type, and can be used to publish any kind of content.
     * Posts can have these types of modules initialized:
     *  - Action modules: any number of publication actions (e.g. collect, tip, etc.)
     *  - Reference module: a module handling the rules when referencing this post (e.g. token-gated comments)
     * @custom:permissions Profile Owner or Delegated Executor.
     *
     * @param postParams A PostParams struct containing the needed parameters.
     *
     * @return uint256 An integer representing the post's publication ID.
     */
    function post(Types.PostParams calldata postParams) external returns (uint256);

    /**
     * @custom:meta-tx post.
     */
    function postWithSig(
        Types.PostParams calldata postParams,
        Types.EIP712Signature calldata signature
    ) external returns (uint256);

    /**
     * @notice Publishes a comment on the given publication.
     * Comment is a type of reference publication that points to another publication.
     * Comments can have these types of modules initialized:
     *  - Action modules: any number of publication actions (e.g. collect, tip, etc.)
     *  - Reference module: a module handling the rules when referencing this comment (e.g. token-gated mirrors)
     * Comments can have referrers (e.g. publications or profiles that helped to discover the pointed publication).
     * @custom:permissions Profile Owner or Delegated Executor.
     *
     * @param commentParams A CommentParams struct containing the needed parameters.
     *
     * @return uint256 An integer representing the comment's publication ID.
     */
    function comment(Types.CommentParams calldata commentParams) external returns (uint256);

    /**
     * @custom:meta-tx comment.
     */
    function commentWithSig(
        Types.CommentParams calldata commentParams,
        Types.EIP712Signature calldata signature
    ) external returns (uint256);

    /**
     * @notice Publishes a mirror of the given publication.
     * Mirror is a type of reference publication that points to another publication but doesn't have content.
     * Mirrors don't have any modules initialized.
     * Mirrors can have referrers (e.g. publications or profiles that allowed to discover the pointed publication).
     * You cannot mirror a mirror, comment on a mirror, or quote a mirror.
     * @custom:permissions Profile Owner or Delegated Executor.
     *
     * @param mirrorParams A MirrorParams struct containing the necessary parameters.
     *
     * @return uint256 An integer representing the mirror's publication ID.
     */
    function mirror(Types.MirrorParams calldata mirrorParams) external returns (uint256);

    /**
     * @custom:meta-tx mirror.
     */
    function mirrorWithSig(
        Types.MirrorParams calldata mirrorParams,
        Types.EIP712Signature calldata signature
    ) external returns (uint256);

    /**
     * @notice Publishes a quote of the given publication.
     * Quote is a type of reference publication similar to mirror, but it has content and modules.
     * Quotes can have these types of modules initialized:
     *  - Action modules: any number of publication actions (e.g. collect, tip, etc.)
     *  - Reference module: a module handling the rules when referencing this quote (e.g. token-gated comments on quote)
     * Quotes can have referrers (e.g. publications or profiles that allowed to discover the pointed publication).
     * Unlike mirrors, you can mirror a quote, comment on a quote, or quote a quote.
     * @custom:permissions Profile Owner or Delegated Executor.
     *
     * @param quoteParams A QuoteParams struct containing the needed parameters.
     *
     * @return uint256 An integer representing the quote's publication ID.
     */
    function quote(Types.QuoteParams calldata quoteParams) external returns (uint256);

    /**
     * @custom:meta-tx quote.
     */
    function quoteWithSig(
        Types.QuoteParams calldata quoteParams,
        Types.EIP712Signature calldata signature
    ) external returns (uint256);

    /**
     * @notice Follows given profiles, executing each profile's follow module logic (if any).
     * @custom:permissions Profile Owner or Delegated Executor.
     *
     * @dev Both the `idsOfProfilesToFollow`, `followTokenIds`, and `datas` arrays must be of the same length,
     * regardless if the profiles do not have a follow module set.
     *
     * @param followerProfileId The ID of the profile the follows are being executed for.
     * @param idsOfProfilesToFollow The array of IDs of profiles to follow.
     * @param followTokenIds The array of follow token IDs to use for each follow (0 if you don't own a follow token).
     * @param datas The arbitrary data array to pass to the follow module for each profile if needed.
     *
     * @return uint256[] An array of follow token IDs representing the follow tokens created for each follow.
     */
    function follow(
        uint256 followerProfileId,
        uint256[] calldata idsOfProfilesToFollow,
        uint256[] calldata followTokenIds,
        bytes[] calldata datas
    ) external returns (uint256[] memory);

    /**
     * @custom:meta-tx follow.
     */
    function followWithSig(
        uint256 followerProfileId,
        uint256[] calldata idsOfProfilesToFollow,
        uint256[] calldata followTokenIds,
        bytes[] calldata datas,
        Types.EIP712Signature calldata signature
    ) external returns (uint256[] memory);

    /**
     * @notice Unfollows given profiles.
     * @custom:permissions Profile Owner or Delegated Executor.
     *
     * @param unfollowerProfileId The ID of the profile the unfollows are being executed for.
     * @param idsOfProfilesToUnfollow The array of IDs of profiles to unfollow.
     */
    function unfollow(uint256 unfollowerProfileId, uint256[] calldata idsOfProfilesToUnfollow) external;

    /**
     * @custom:meta-tx unfollow.
     */
    function unfollowWithSig(
        uint256 unfollowerProfileId,
        uint256[] calldata idsOfProfilesToUnfollow,
        Types.EIP712Signature calldata signature
    ) external;

    /**
     * @notice Sets the block status for the given profiles. Changing a profile's block status to `true` (i.e. blocked),
     * when will also force them to unfollow.
     * Blocked profiles cannot perform any actions with the profile that blocked them: they cannot comment or mirror
     * their publications, they cannot follow them, they cannot collect, tip them, etc.
     * @custom:permissions Profile Owner or Delegated Executor.
     *
     * @dev Both the `idsOfProfilesToSetBlockStatus` and `blockStatus` arrays must be of the same length.
     *
     * @param byProfileId The ID of the profile that is blocking/unblocking somebody.
     * @param idsOfProfilesToSetBlockStatus The array of IDs of profiles to set block status.
     * @param blockStatus The array of block statuses to use for each (true is blocked).
     */
    function setBlockStatus(
        uint256 byProfileId,
        uint256[] calldata idsOfProfilesToSetBlockStatus,
        bool[] calldata blockStatus
    ) external;

    /**
     * @custom:meta-tx setBlockStatus.
     */
    function setBlockStatusWithSig(
        uint256 byProfileId,
        uint256[] calldata idsOfProfilesToSetBlockStatus,
        bool[] calldata blockStatus,
        Types.EIP712Signature calldata signature
    ) external;

    /**
     * @notice Collects a given publication via signature with the specified parameters.
     * Collect can have referrers (e.g. publications or profiles that allowed to discover the pointed publication).
     * @custom:permissions Collector Profile Owner or its Delegated Executor.
     * @custom:pending-deprecation Collect modules were replaced by PublicationAction Collect modules in V2. This method
     * is left here for backwards compatibility with posts made in V1 that had Collect modules.
     *
     * @param collectParams A CollectParams struct containing the parameters.
     *
     * @return uint256 An integer representing the minted token ID.
     */
    function collectLegacy(Types.LegacyCollectParams calldata collectParams) external returns (uint256);

    /**
     * @custom:meta-tx collect.
     * @custom:pending-deprecation
     */
    function collectLegacyWithSig(
        Types.LegacyCollectParams calldata collectParams,
        Types.EIP712Signature calldata signature
    ) external returns (uint256);

    /**
     * @notice Acts on a given publication with the specified parameters.
     * You can act on a publication except a mirror (if it has at least one action module initialized).
     * Actions can have referrers (e.g. publications or profiles that allowed to discover the pointed publication).
     * @custom:permissions Actor Profile Owner or its Delegated Executor.
     *
     * @param publicationActionParams A PublicationActionParams struct containing the parameters.
     *
     * @return bytes Arbitrary data the action module returns.
     */
    function act(Types.PublicationActionParams calldata publicationActionParams) external returns (bytes memory);

    /**
     * @custom:meta-tx act.
     */
    function actWithSig(
        Types.PublicationActionParams calldata publicationActionParams,
        Types.EIP712Signature calldata signature
    ) external returns (bytes memory);

    /**
     * @dev This function is used to invalidate signatures by incrementing the nonce of the signer.
     * @param increment The amount to increment the nonce by (max 255).
     */
    function incrementNonce(uint8 increment) external;

    /////////////////////////////////
    ///       VIEW FUNCTIONS      ///
    /////////////////////////////////

    /**
     * @notice Returns whether or not `followerProfileId` is following `followedProfileId`.
     *
     * @param followerProfileId The ID of the profile whose following state should be queried.
     * @param followedProfileId The ID of the profile whose followed state should be queried.
     *
     * @return bool True if `followerProfileId` is following `followedProfileId`, false otherwise.
     */
    function isFollowing(uint256 followerProfileId, uint256 followedProfileId) external view returns (bool);

    /**
     * @notice Returns whether the given address is approved as delegated executor, in the configuration with the given
     * number, to act on behalf of the given profile.
     *
     * @param delegatorProfileId The ID of the profile to check the delegated executor approval for.
     * @param delegatedExecutor The address to query the delegated executor approval for.
     * @param configNumber The number of the configuration where the executor approval state is being queried.
     *
     * @return bool True if the address is approved as a delegated executor to act on behalf of the profile in the
     * given configuration, false otherwise.
     */
    function isDelegatedExecutorApproved(
        uint256 delegatorProfileId,
        address delegatedExecutor,
        uint64 configNumber
    ) external view returns (bool);

    /**
     * @notice Returns whether the given address is approved as delegated executor, in the current configuration, to act
     * on behalf of the given profile.
     *
     * @param delegatorProfileId The ID of the profile to check the delegated executor approval for.
     * @param delegatedExecutor The address to query the delegated executor approval for.
     *
     * @return bool True if the address is approved as a delegated executor to act on behalf of the profile in the
     * current configuration, false otherwise.
     */
    function isDelegatedExecutorApproved(
        uint256 delegatorProfileId,
        address delegatedExecutor
    ) external view returns (bool);

    /**
     * @notice Returns the current delegated executor config number for the given profile.
     *
     * @param delegatorProfileId The ID of the profile from which the delegated executors config number is being queried
     *
     * @return uint256 The current delegated executor configuration number.
     */
    function getDelegatedExecutorsConfigNumber(uint256 delegatorProfileId) external view returns (uint64);

    /**
     * @notice Returns the previous used delegated executor config number for the given profile.
     *
     * @param delegatorProfileId The ID of the profile from which the delegated executors' previous configuration number
     * set is being queried.
     *
     * @return uint256 The delegated executor configuration number previously set. It will coincide with the current
     * configuration set if it was never switched from the default one.
     */
    function getDelegatedExecutorsPrevConfigNumber(uint256 delegatorProfileId) external view returns (uint64);

    /**
     * @notice Returns the maximum delegated executor config number for the given profile.
     * This is the maximum config number that was ever used by this profile.
     * When creating a new clean configuration, you can only use a number that is maxConfigNumber + 1.
     *
     * @param delegatorProfileId The ID of the profile from which the delegated executors' maximum configuration number
     * set is being queried.
     *
     * @return uint256 The delegated executor maximum configuration number set.
     */
    function getDelegatedExecutorsMaxConfigNumberSet(uint256 delegatorProfileId) external view returns (uint64);

    /**
     * @notice Returns whether `profileId` is blocked by `byProfileId`.
     * See setBlockStatus() for more information on how blocking works on the platform.
     *
     * @param profileId The ID of the profile whose blocked status should be queried.
     * @param byProfileId The ID of the profile whose blocker status should be queried.
     *
     * @return bool True if `profileId` is blocked by `byProfileId`, false otherwise.
     */
    function isBlocked(uint256 profileId, uint256 byProfileId) external view returns (bool);

    /**
     * @notice Returns the URI associated with a given publication.
     * This is used to store the publication's metadata, e.g.: content, images, etc.
     *
     * @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 full profile struct associated with a given profile token ID.
     *
     * @param profileId The token ID of the profile to query.
     *
     * @return Profile The profile struct of the given profile.
     */
    function getProfile(uint256 profileId) external view returns (Types.Profile 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 Publication The publication struct associated with the queried publication.
     */
    function getPublication(uint256 profileId, uint256 pubId) external view returns (Types.PublicationMemory memory);

    /**
     * @notice Returns the type of a given publication.
     * The type can be one of the following (see PublicationType enum):
     * - Nonexistent
     * - Post
     * - Comment
     * - Mirror
     * - Quote
     *
     * @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 PublicationType The publication type of the queried publication.
     */
    function getPublicationType(uint256 profileId, uint256 pubId) external view returns (Types.PublicationType);

    /**
     * @notice Returns wether a given Action Module is enabled 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.
     * @param module The address of the Action Module to query.
     *
     * @return bool True if the Action Module is enabled for the queried publication, false if not.
     */
    function isActionModuleEnabledInPublication(
        uint256 profileId,
        uint256 pubId,
        address module
    ) external view returns (bool);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

/**
 * @title ILensVersion
 * @author Lens Protocol
 *
 * @notice This is the interface for the LensHub Version getters and emitter.
 * It allows to emit a LensHub version during an upgrade, and also to get the current version.
 */
interface ILensVersion {
    /**
     * @notice Returns the LensHub current Version.
     *
     * @return version The LensHub current Version.
     */
    function getVersion() external view returns (string memory);

    /**
     * @notice Returns the LensHub current Git Commit.
     *
     * @return gitCommit The LensHub current Git Commit.
     */
    function getGitCommit() external view returns (bytes20);

    /**
     * @notice Emits the LensHub current Version. Used in upgradeAndCall().
     */
    function emitVersion() external;
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

import {Types} from 'contracts/libraries/constants/Types.sol';

/**
 * @title IPublicationAction
 * @author Lens Protocol
 *
 * @notice This is the standard interface for all Lens-compatible Publication Actions.
 * Publication action modules allow users to execute actions directly from a publication, like:
 *  - Minting NFTs.
 *  - Collecting a publication.
 *  - Sending funds to the publication author (e.g. tipping).
 *  - Etc.
 * Referrers are supported, so any publication or profile that references the publication can receive a share from the
 * publication's action if the action module supports it.
 */
interface IPublicationActionModule {
    /**
     * @notice Initializes the action module for the given publication being published with this Action module.
     * @custom:permissions LensHub.
     *
     * @param profileId The profile ID of the author publishing the content with this Publication Action.
     * @param pubId The publication ID being published.
     * @param transactionExecutor The address of the transaction executor (e.g. for any funds to transferFrom).
     * @param data Arbitrary data passed from the user to be decoded by the Action Module during initialization.
     *
     * @return bytes Any custom ABI-encoded data. This will be a LensHub event params that can be used by
     * indexers or UIs.
     */
    function initializePublicationAction(
        uint256 profileId,
        uint256 pubId,
        address transactionExecutor,
        bytes calldata data
    ) external returns (bytes memory);

    /**
     * @notice Processes the action for a given publication. This includes the action's logic and any monetary/token
     * operations.
     * @custom:permissions LensHub.
     *
     * @param processActionParams The parameters needed to execute the publication action.
     *
     * @return bytes Any custom ABI-encoded data. This will be a LensHub event params that can be used by
     * indexers or UIs.
     */
    function processPublicationAction(Types.ProcessActionParams calldata processActionParams)
        external
        returns (bytes memory);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.15;

import {IERC1271} from '@openzeppelin/contracts/interfaces/IERC1271.sol';
import {ILensERC721} from 'contracts/interfaces/ILensERC721.sol';
import {Types} from 'contracts/libraries/constants/Types.sol';
import {Errors} from 'contracts/libraries/constants/Errors.sol';
import {Typehash} from 'contracts/libraries/constants/Typehash.sol';
import {StorageLib} from 'contracts/libraries/StorageLib.sol';
import {Events} from 'contracts/libraries/constants/Events.sol';

/**
 * @title MetaTxLib
 * @author Lens Protocol
 *
 * NOTE: the functions in this contract operate under the assumption that the passed signer is already validated
 * to either be the originator or one of their delegated executors.
 *
 * @dev User nonces are incremented from this library as well.
 */
library MetaTxLib {
    string constant EIP712_DOMAIN_VERSION = '2';
    bytes32 constant EIP712_DOMAIN_VERSION_HASH = keccak256(bytes(EIP712_DOMAIN_VERSION));
    bytes4 constant EIP1271_MAGIC_VALUE = 0x1626ba7e;

    /**
     * @dev We store the domain separator and LensHub Proxy address as constants to save gas.
     *
     * keccak256(
     *     abi.encode(
     *         keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)'),
     *         keccak256('Lens Protocol Profiles'), // Contract Name
     *         keccak256('2'), // Version Hash
     *         137, // Polygon Chain ID
     *         address(0xDb46d1Dc155634FbC732f92E853b10B288AD5a1d) // Verifying Contract Address - LensHub Address
     *     )
     * );
     */
    bytes32 constant LENS_HUB_CACHED_POLYGON_DOMAIN_SEPARATOR =
        0xbf9544cf7d7a0338fc4f071be35409a61e51e9caef559305410ad74e16a05f2d;

    address constant LENS_HUB_ADDRESS = 0xDb46d1Dc155634FbC732f92E853b10B288AD5a1d;

    uint256 constant POLYGON_CHAIN_ID = 137;

    function validateSetProfileMetadataURISignature(
        Types.EIP712Signature calldata signature,
        uint256 profileId,
        string calldata metadataURI
    ) external {
        _validateRecoveredAddress(
            _calculateDigest(
                keccak256(
                    abi.encode(
                        Typehash.SET_PROFILE_METADATA_URI,
                        profileId,
                        _encodeUsingEip712Rules(metadataURI),
                        _getNonceIncrementAndEmitEvent(signature.signer),
                        signature.deadline
                    )
                )
            ),
            signature
        );
    }

    function validateSetFollowModuleSignature(
        Types.EIP712Signature calldata signature,
        uint256 profileId,
        address followModule,
        bytes calldata followModuleInitData
    ) external {
        _validateRecoveredAddress(
            _calculateDigest(
                keccak256(
                    abi.encode(
                        Typehash.SET_FOLLOW_MODULE,
                        profileId,
                        followModule,
                        _encodeUsingEip712Rules(followModuleInitData),
                        _getNonceIncrementAndEmitEvent(signature.signer),
                        signature.deadline
                    )
                )
            ),
            signature
        );
    }

    function validateChangeDelegatedExecutorsConfigSignature(
        Types.EIP712Signature calldata signature,
        uint256 delegatorProfileId,
        address[] calldata delegatedExecutors,
        bool[] calldata approvals,
        uint64 configNumber,
        bool switchToGivenConfig
    ) external {
        address signer = signature.signer;
        uint256 deadline = signature.deadline;
        _validateRecoveredAddress(
            _calculateDigest(
                keccak256(
                    abi.encode(
                        Typehash.CHANGE_DELEGATED_EXECUTORS_CONFIG,
                        delegatorProfileId,
                        _encodeUsingEip712Rules(delegatedExecutors),
                        _encodeUsingEip712Rules(approvals),
                        configNumber,
                        switchToGivenConfig,
                        _getNonceIncrementAndEmitEvent(signer),
                        deadline
                    )
                )
            ),
            signature
        );
    }

    function validatePostSignature(
        Types.EIP712Signature calldata signature,
        Types.PostParams calldata postParams
    ) external {
        _validateRecoveredAddress(
            _calculateDigest(
                keccak256(
                    abi.encode(
                        Typehash.POST,
                        postParams.profileId,
                        _encodeUsingEip712Rules(postParams.contentURI),
                        _encodeUsingEip712Rules(postParams.actionModules),
                        _encodeUsingEip712Rules(postParams.actionModulesInitDatas),
                        postParams.referenceModule,
                        _encodeUsingEip712Rules(postParams.referenceModuleInitData),
                        _getNonceIncrementAndEmitEvent(signature.signer),
                        signature.deadline
                    )
                )
            ),
            signature
        );
    }

    function validateCommentSignature(
        Types.EIP712Signature calldata signature,
        Types.CommentParams calldata commentParams
    ) external {
        bytes memory encodedAbi = abi.encode(
            Typehash.COMMENT,
            commentParams.profileId,
            _encodeUsingEip712Rules(commentParams.contentURI),
            commentParams.pointedProfileId,
            commentParams.pointedPubId,
            _encodeUsingEip712Rules(commentParams.referrerProfileIds),
            _encodeUsingEip712Rules(commentParams.referrerPubIds),
            _encodeUsingEip712Rules(commentParams.referenceModuleData),
            _encodeUsingEip712Rules(commentParams.actionModules),
            _encodeUsingEip712Rules(commentParams.actionModulesInitDatas),
            commentParams.referenceModule,
            _encodeUsingEip712Rules(commentParams.referenceModuleInitData),
            _getNonceIncrementAndEmitEvent(signature.signer),
            signature.deadline
        );
        _validateRecoveredAddress(_calculateDigest(keccak256(encodedAbi)), signature);
    }

    function validateQuoteSignature(
        Types.EIP712Signature calldata signature,
        Types.QuoteParams calldata quoteParams
    ) external {
        bytes memory encodedAbi = abi.encode(
            Typehash.QUOTE,
            quoteParams.profileId,
            _encodeUsingEip712Rules(quoteParams.contentURI),
            quoteParams.pointedProfileId,
            quoteParams.pointedPubId,
            _encodeUsingEip712Rules(quoteParams.referrerProfileIds),
            _encodeUsingEip712Rules(quoteParams.referrerPubIds),
            _encodeUsingEip712Rules(quoteParams.referenceModuleData),
            _encodeUsingEip712Rules(quoteParams.actionModules),
            _encodeUsingEip712Rules(quoteParams.actionModulesInitDatas),
            quoteParams.referenceModule,
            _encodeUsingEip712Rules(quoteParams.referenceModuleInitData),
            _getNonceIncrementAndEmitEvent(signature.signer),
            signature.deadline
        );
        _validateRecoveredAddress(_calculateDigest(keccak256(encodedAbi)), signature);
    }

    function validateMirrorSignature(
        Types.EIP712Signature calldata signature,
        Types.MirrorParams calldata mirrorParams
    ) external {
        _validateRecoveredAddress(
            _calculateDigest(
                keccak256(
                    abi.encode(
                        Typehash.MIRROR,
                        mirrorParams.profileId,
                        _encodeUsingEip712Rules(mirrorParams.metadataURI),
                        mirrorParams.pointedProfileId,
                        mirrorParams.pointedPubId,
                        _encodeUsingEip712Rules(mirrorParams.referrerProfileIds),
                        _encodeUsingEip712Rules(mirrorParams.referrerPubIds),
                        _encodeUsingEip712Rules(mirrorParams.referenceModuleData),
                        _getNonceIncrementAndEmitEvent(signature.signer),
                        signature.deadline
                    )
                )
            ),
            signature
        );
    }

    function validateFollowSignature(
        Types.EIP712Signature calldata signature,
        uint256 followerProfileId,
        uint256[] calldata idsOfProfilesToFollow,
        uint256[] calldata followTokenIds,
        bytes[] calldata datas
    ) external {
        _validateRecoveredAddress(
            _calculateDigest(
                keccak256(
                    abi.encode(
                        Typehash.FOLLOW,
                        followerProfileId,
                        _encodeUsingEip712Rules(idsOfProfilesToFollow),
                        _encodeUsingEip712Rules(followTokenIds),
                        _encodeUsingEip712Rules(datas),
                        _getNonceIncrementAndEmitEvent(signature.signer),
                        signature.deadline
                    )
                )
            ),
            signature
        );
    }

    function validateUnfollowSignature(
        Types.EIP712Signature calldata signature,
        uint256 unfollowerProfileId,
        uint256[] calldata idsOfProfilesToUnfollow
    ) external {
        _validateRecoveredAddress(
            _calculateDigest(
                keccak256(
                    abi.encode(
                        Typehash.UNFOLLOW,
                        unfollowerProfileId,
                        _encodeUsingEip712Rules(idsOfProfilesToUnfollow),
                        _getNonceIncrementAndEmitEvent(signature.signer),
                        signature.deadline
                    )
                )
            ),
            signature
        );
    }

    function validateSetBlockStatusSignature(
        Types.EIP712Signature calldata signature,
        uint256 byProfileId,
        uint256[] calldata idsOfProfilesToSetBlockStatus,
        bool[] calldata blockStatus
    ) external {
        _validateRecoveredAddress(
            _calculateDigest(
                keccak256(
                    abi.encode(
                        Typehash.SET_BLOCK_STATUS,
                        byProfileId,
                        _encodeUsingEip712Rules(idsOfProfilesToSetBlockStatus),
                        _encodeUsingEip712Rules(blockStatus),
                        _getNonceIncrementAndEmitEvent(signature.signer),
                        signature.deadline
                    )
                )
            ),
            signature
        );
    }

    function validateLegacyCollectSignature(
        Types.EIP712Signature calldata signature,
        Types.LegacyCollectParams calldata collectParams
    ) external {
        _validateRecoveredAddress(
            _calculateDigest(
                keccak256(
                    abi.encode(
                        Typehash.COLLECT_LEGACY,
                        collectParams.publicationCollectedProfileId,
                        collectParams.publicationCollectedId,
                        collectParams.collectorProfileId,
                        collectParams.referrerProfileId,
                        collectParams.referrerPubId,
                        _encodeUsingEip712Rules(collectParams.collectModuleData),
                        _getNonceIncrementAndEmitEvent(signature.signer),
                        signature.deadline
                    )
                )
            ),
            signature
        );
    }

    function validateActSignature(
        Types.EIP712Signature calldata signature,
        Types.PublicationActionParams calldata publicationActionParams
    ) external {
        _validateRecoveredAddress(
            _calculateDigest(
                keccak256(
                    abi.encode(
                        Typehash.ACT,
                        publicationActionParams.publicationActedProfileId,
                        publicationActionParams.publicationActedId,
                        publicationActionParams.actorProfileId,
                        _encodeUsingEip712Rules(publicationActionParams.referrerProfileIds),
                        _encodeUsingEip712Rules(publicationActionParams.referrerPubIds),
                        publicationActionParams.actionModuleAddress,
                        _encodeUsingEip712Rules(publicationActionParams.actionModuleData),
                        _getNonceIncrementAndEmitEvent(signature.signer),
                        signature.deadline
                    )
                )
            ),
            signature
        );
    }

    /// @dev This function is used to invalidate signatures by incrementing the nonce
    function incrementNonce(uint8 increment) external {
        uint256 currentNonce = StorageLib.nonces()[msg.sender];
        StorageLib.nonces()[msg.sender] = currentNonce + increment;
        emit Events.NonceUpdated(msg.sender, currentNonce + increment, block.timestamp);
    }

    function calculateDomainSeparator() internal view returns (bytes32) {
        if (address(this) == LENS_HUB_ADDRESS && block.chainid == POLYGON_CHAIN_ID) {
            return LENS_HUB_CACHED_POLYGON_DOMAIN_SEPARATOR;
        }
        return
            keccak256(
                abi.encode(
                    Typehash.EIP712_DOMAIN,
                    keccak256(bytes(ILensERC721(address(this)).name())),
                    EIP712_DOMAIN_VERSION_HASH,
                    block.chainid,
                    address(this)
                )
            );
    }

    /**
     * @dev Wrapper for ecrecover to reduce code size, used in meta-tx specific functions.
     */
    function _validateRecoveredAddress(bytes32 digest, Types.EIP712Signature calldata signature) private view {
        if (block.timestamp > signature.deadline) revert Errors.SignatureExpired();
        // If the expected address is a contract, check the signature there.
        if (signature.signer.code.length != 0) {
            bytes memory concatenatedSig = abi.encodePacked(signature.r, signature.s, signature.v);
            if (IERC1271(signature.signer).isValidSignature(digest, concatenatedSig) != EIP1271_MAGIC_VALUE) {
                revert Errors.SignatureInvalid();
            }
        } else {
            address recoveredAddress = ecrecover(digest, signature.v, signature.r, signature.s);
            if (recoveredAddress == address(0) || recoveredAddress != signature.signer) {
                revert Errors.SignatureInvalid();
            }
        }
    }

    /**
     * @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) private view returns (bytes32) {
        return keccak256(abi.encodePacked('\x19\x01', calculateDomainSeparator(), hashedMessage));
    }

    /**
     * @dev This fetches a signer's current nonce and increments it so it's ready for the next meta-tx. Also emits
     * the `NonceUpdated` event.
     *
     * @param signer The address to get and increment the nonce for.
     *
     * @return uint256 The current nonce for the given signer prior to being incremented.
     */
    function _getNonceIncrementAndEmitEvent(address signer) private returns (uint256) {
        uint256 currentNonce;
        unchecked {
            currentNonce = StorageLib.nonces()[signer]++;
        }
        emit Events.NonceUpdated(signer, currentNonce + 1, block.timestamp);
        return currentNonce;
    }

    function _encodeUsingEip712Rules(bytes[] memory bytesArray) private pure returns (bytes32) {
        bytes32[] memory bytesArrayEncodedElements = new bytes32[](bytesArray.length);
        uint256 i;
        while (i < bytesArray.length) {
            // A `bytes` type is encoded as its keccak256 hash.
            bytesArrayEncodedElements[i] = _encodeUsingEip712Rules(bytesArray[i]);
            unchecked {
                ++i;
            }
        }
        // An array is encoded as the keccak256 hash of the concatenation of their encoded elements.
        return _encodeUsingEip712Rules(bytesArrayEncodedElements);
    }

    function _encodeUsingEip712Rules(bool[] memory boolArray) private pure returns (bytes32) {
        return keccak256(abi.encodePacked(boolArray));
    }

    function _encodeUsingEip712Rules(address[] memory addressArray) private pure returns (bytes32) {
        return keccak256(abi.encodePacked(addressArray));
    }

    function _encodeUsingEip712Rules(uint256[] memory uint256Array) private pure returns (bytes32) {
        return keccak256(abi.encodePacked(uint256Array));
    }

    function _encodeUsingEip712Rules(bytes32[] memory bytes32Array) private pure returns (bytes32) {
        return keccak256(abi.encodePacked(bytes32Array));
    }

    function _encodeUsingEip712Rules(string memory stringValue) private pure returns (bytes32) {
        return keccak256(bytes(stringValue));
    }

    function _encodeUsingEip712Rules(bytes memory bytesValue) private pure returns (bytes32) {
        return keccak256(bytesValue);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.15;

import {Types} from 'contracts/libraries/constants/Types.sol';
import {Errors} from 'contracts/libraries/constants/Errors.sol';

library StorageLib {
    // uint256 constant NAME_SLOT = 0;
    // uint256 constant SYMBOL_SLOT = 1;
    uint256 constant TOKEN_DATA_MAPPING_SLOT = 2;
    // uint256 constant BALANCES_SLOT = 3;
    // uint256 constant TOKEN_APPROVAL_MAPPING_SLOT = 4;
    // uint256 constant OPERATOR_APPROVAL_MAPPING_SLOT = 5;
    // Slot 6 is deprecated in Lens V2. In V1 it was used for ERC-721 Enumerable's `ownedTokens`.
    // Slot 7 is deprecated in Lens V2. In V1 it was used for ERC-721 Enumerable's `ownedTokensIndex`.
    // uint256 constant TOTAL_SUPPLY_SLOT = 8;
    // Slot 9 is deprecated in Lens V2. In V1 it was used for ERC-721 Enumerable's `allTokensIndex`.
    uint256 constant SIG_NONCES_MAPPING_SLOT = 10;
    uint256 constant LAST_INITIALIZED_REVISION_SLOT = 11; // VersionedInitializable's `lastInitializedRevision` field.
    uint256 constant PROTOCOL_STATE_SLOT = 12;
    uint256 constant PROFILE_CREATOR_WHITELIST_MAPPING_SLOT = 13;
    // Slot 14 is deprecated in Lens V2. In V1 it was used for the follow module address whitelist.
    // Slot 15 is deprecated in Lens V2. In V1 it was used for the collect module address whitelist.
    // Slot 16 is deprecated in Lens V2. In V1 it was used for the reference module address whitelist.
    // Slot 17 is deprecated in Lens V2. In V1 it was used for the dispatcher address by profile ID.
    uint256 constant PROFILE_ID_BY_HANDLE_HASH_MAPPING_SLOT = 18; // Deprecated slot, but still needed for V2 migration.
    uint256 constant PROFILES_MAPPING_SLOT = 19;
    uint256 constant PUBLICATIONS_MAPPING_SLOT = 20;
    // Slot 21 is deprecated in Lens V2. In V1 it was used for the default profile ID by address.
    uint256 constant PROFILE_COUNTER_SLOT = 22;
    uint256 constant GOVERNANCE_SLOT = 23;
    uint256 constant EMERGENCY_ADMIN_SLOT = 24;
    //////////////////////////////////
    ///  Introduced in Lens V1.3:  ///
    //////////////////////////////////
    uint256 constant TOKEN_GUARDIAN_DISABLING_TIMESTAMP_MAPPING_SLOT = 25;
    //////////////////////////////////
    ///   Introduced in Lens V2:   ///
    //////////////////////////////////
    uint256 constant DELEGATED_EXECUTOR_CONFIG_MAPPING_SLOT = 26;
    uint256 constant BLOCKED_STATUS_MAPPING_SLOT = 27;
    uint256 constant PROFILE_ROYALTIES_BPS_SLOT = 28;
    uint256 constant MIGRATION_ADMINS_WHITELISTED_MAPPING_SLOT = 29;
    uint256 constant TREASURY_DATA_SLOT = 30;

    function getPublication(
        uint256 profileId,
        uint256 pubId
    ) internal pure returns (Types.Publication storage _publication) {
        assembly {
            mstore(0, profileId)
            mstore(32, PUBLICATIONS_MAPPING_SLOT)
            mstore(32, keccak256(0, 64))
            mstore(0, pubId)
            _publication.slot := keccak256(0, 64)
        }
    }

    function getPublicationMemory(
        uint256 profileId,
        uint256 pubId
    ) internal pure returns (Types.PublicationMemory memory) {
        Types.PublicationMemory storage _publicationStorage;
        assembly {
            mstore(0, profileId)
            mstore(32, PUBLICATIONS_MAPPING_SLOT)
            mstore(32, keccak256(0, 64))
            mstore(0, pubId)
            _publicationStorage.slot := keccak256(0, 64)
        }

        Types.PublicationMemory memory _publicationMemory;
        _publicationMemory = _publicationStorage;

        return _publicationMemory;
    }

    function getProfile(uint256 profileId) internal pure returns (Types.Profile storage _profiles) {
        assembly {
            mstore(0, profileId)
            mstore(32, PROFILES_MAPPING_SLOT)
            _profiles.slot := keccak256(0, 64)
        }
    }

    function getDelegatedExecutorsConfig(
        uint256 delegatorProfileId
    ) internal pure returns (Types.DelegatedExecutorsConfig storage _delegatedExecutorsConfig) {
        assembly {
            mstore(0, delegatorProfileId)
            mstore(32, DELEGATED_EXECUTOR_CONFIG_MAPPING_SLOT)
            _delegatedExecutorsConfig.slot := keccak256(0, 64)
        }
    }

    function tokenGuardianDisablingTimestamp()
        internal
        pure
        returns (mapping(address => uint256) storage _tokenGuardianDisablingTimestamp)
    {
        assembly {
            _tokenGuardianDisablingTimestamp.slot := TOKEN_GUARDIAN_DISABLING_TIMESTAMP_MAPPING_SLOT
        }
    }

    function getTokenData(uint256 tokenId) internal pure returns (Types.TokenData storage _tokenData) {
        assembly {
            mstore(0, tokenId)
            mstore(32, TOKEN_DATA_MAPPING_SLOT)
            _tokenData.slot := keccak256(0, 64)
        }
    }

    function blockedStatus(
        uint256 blockerProfileId
    ) internal pure returns (mapping(uint256 => bool) storage _blockedStatus) {
        assembly {
            mstore(0, blockerProfileId)
            mstore(32, BLOCKED_STATUS_MAPPING_SLOT)
            _blockedStatus.slot := keccak256(0, 64)
        }
    }

    function nonces() internal pure returns (mapping(address => uint256) storage _nonces) {
        assembly {
            _nonces.slot := SIG_NONCES_MAPPING_SLOT
        }
    }

    function profileIdByHandleHash()
        internal
        pure
        returns (mapping(bytes32 => uint256) storage _profileIdByHandleHash)
    {
        assembly {
            _profileIdByHandleHash.slot := PROFILE_ID_BY_HANDLE_HASH_MAPPING_SLOT
        }
    }

    function profileCreatorWhitelisted()
        internal
        pure
        returns (mapping(address => bool) storage _profileCreatorWhitelisted)
    {
        assembly {
            _profileCreatorWhitelisted.slot := PROFILE_CREATOR_WHITELIST_MAPPING_SLOT
        }
    }

    function migrationAdminWhitelisted()
        internal
        pure
        returns (mapping(address => bool) storage _migrationAdminWhitelisted)
    {
        assembly {
            _migrationAdminWhitelisted.slot := MIGRATION_ADMINS_WHITELISTED_MAPPING_SLOT
        }
    }

    function getGovernance() internal view returns (address _governance) {
        assembly {
            _governance := sload(GOVERNANCE_SLOT)
        }
    }

    function setGovernance(address newGovernance) internal {
        assembly {
            sstore(GOVERNANCE_SLOT, newGovernance)
        }
    }

    function getEmergencyAdmin() internal view returns (address _emergencyAdmin) {
        assembly {
            _emergencyAdmin := sload(EMERGENCY_ADMIN_SLOT)
        }
    }

    function setEmergencyAdmin(address newEmergencyAdmin) internal {
        assembly {
            sstore(EMERGENCY_ADMIN_SLOT, newEmergencyAdmin)
        }
    }

    function getState() internal view returns (Types.ProtocolState _state) {
        assembly {
            _state := sload(PROTOCOL_STATE_SLOT)
        }
    }

    function setState(Types.ProtocolState newState) internal {
        assembly {
            sstore(PROTOCOL_STATE_SLOT, newState)
        }
    }

    function getLastInitializedRevision() internal view returns (uint256 _lastInitializedRevision) {
        assembly {
            _lastInitializedRevision := sload(LAST_INITIALIZED_REVISION_SLOT)
        }
    }

    function setLastInitializedRevision(uint256 newLastInitializedRevision) internal {
        assembly {
            sstore(LAST_INITIALIZED_REVISION_SLOT, newLastInitializedRevision)
        }
    }

    function getTreasuryData() internal pure returns (Types.TreasuryData storage _treasuryData) {
        assembly {
            _treasuryData.slot := TREASURY_DATA_SLOT
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

library Errors {
    error CannotInitImplementation();
    error Initialized();
    error SignatureExpired();
    error SignatureInvalid();
    error InvalidOwner();
    error NotOwnerOrApproved();
    error NotHub();
    error TokenDoesNotExist();
    error NotGovernance();
    error NotGovernanceOrEmergencyAdmin();
    error EmergencyAdminCanOnlyPauseFurther();
    error NotProfileOwner();
    error PublicationDoesNotExist();
    error CallerNotFollowNFT();
    error CallerNotCollectNFT(); // Legacy
    error ArrayMismatch();
    error NotWhitelisted();
    error NotRegistered();
    error InvalidParameter();
    error ExecutorInvalid();
    error Blocked();
    error SelfBlock();
    error NotFollowing();
    error SelfFollow();
    error InvalidReferrer();
    error InvalidPointedPub();
    error NonERC721ReceiverImplementer();
    error AlreadyEnabled();

    // Module Errors
    error InitParamsInvalid();
    error ActionNotAllowed();

    error CollectNotAllowed(); // Used in LegacyCollectLib (pending deprecation)

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

    // Profile Guardian Errors
    error GuardianEnabled();
    error NotEOA();
    error DisablingAlreadyTriggered();

    // Migration Errors
    error NotMigrationAdmin();
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

import {Types} from 'contracts/libraries/constants/Types.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,
        Types.ProtocolState indexed prevState,
        Types.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 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 timestamp The current block timestamp.
     */
    event ProfileCreated(uint256 indexed profileId, address indexed creator, address indexed to, uint256 timestamp);

    /**
     * @dev Emitted when a delegated executors configuration is changed.
     *
     * @param delegatorProfileId The ID of the profile for which the delegated executor was changed.
     * @param configNumber The number of the configuration where the executor approval state was set.
     * @param delegatedExecutors The array of delegated executors whose approval was set for.
     * @param approvals The array of booleans indicating the corresponding executor new approval status.
     * @param timestamp The current block timestamp.
     */
    event DelegatedExecutorsConfigChanged(
        uint256 indexed delegatorProfileId,
        uint256 indexed configNumber,
        address[] delegatedExecutors,
        bool[] approvals,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a delegated executors configuration is applied.
     *
     * @param delegatorProfileId The ID of the profile applying the configuration.
     * @param configNumber The number of the configuration applied.
     * @param timestamp The current block timestamp.
     */
    event DelegatedExecutorsConfigApplied(
        uint256 indexed delegatorProfileId,
        uint256 indexed configNumber,
        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 followModuleInitData The data passed to the follow module, if any.
     * @param followModuleReturnData The data returned from the follow module's initialization. This is ABI-encoded
     * and depends on the follow module chosen.
     * @param transactionExecutor The address of the account that executed this operation.
     * @param timestamp The current block timestamp.
     */
    event FollowModuleSet(
        uint256 indexed profileId,
        address followModule,
        bytes followModuleInitData,
        bytes followModuleReturnData,
        address transactionExecutor,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a post is successfully published.
     *
     * @param postParams The parameters passed to create the post publication.
     * @param pubId The publication ID assigned to the created post.
     * @param actionModulesInitReturnDatas The data returned from the action modules' initialization for this given
     * publication. This is ABI-encoded and depends on the action module chosen.
     * @param referenceModuleInitReturnData The data returned from the reference module at initialization. This is
     * ABI-encoded and depends on the reference module chosen.
     * @param transactionExecutor The address of the account that executed this operation.
     * @param timestamp The current block timestamp.
     */
    event PostCreated(
        Types.PostParams postParams,
        uint256 indexed pubId,
        bytes[] actionModulesInitReturnDatas,
        bytes referenceModuleInitReturnData,
        address transactionExecutor,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a comment is successfully published.
     *
     * @param commentParams The parameters passed to create the comment publication.
     * @param pubId The publication ID assigned to the created comment.
     * @param referenceModuleReturnData The data returned by the commented publication reference module's
     * processComment function, if the commented publication has a reference module set.
     * @param actionModulesInitReturnDatas The data returned from the action modules' initialization for this given
     * publication. This is ABI-encoded and depends on the action module chosen.
     * @param referenceModuleInitReturnData The data returned from the reference module at initialization. This is
     * ABI-encoded and depends on the reference module chosen.
     * @param transactionExecutor The address of the account that executed this operation.
     * @param timestamp The current block timestamp.
     */
    event CommentCreated(
        Types.CommentParams commentParams,
        uint256 indexed pubId,
        bytes referenceModuleReturnData,
        bytes[] actionModulesInitReturnDatas,
        bytes referenceModuleInitReturnData,
        address transactionExecutor,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a mirror is successfully published.
     *
     * @param mirrorParams The parameters passed to create the mirror publication.
     * @param pubId The publication ID assigned to the created mirror.
     * @param referenceModuleReturnData The data returned by the mirrored publication reference module's
     * processMirror function, if the mirrored publication has a reference module set.
     * @param transactionExecutor The address of the account that executed this operation.
     * @param timestamp The current block timestamp.
     */
    event MirrorCreated(
        Types.MirrorParams mirrorParams,
        uint256 indexed pubId,
        bytes referenceModuleReturnData,
        address transactionExecutor,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a quote is successfully published.
     *
     * @param quoteParams The parameters passed to create the quote publication.
     * @param pubId The publication ID assigned to the created quote.
     * @param referenceModuleReturnData The data returned by the quoted publication reference module's
     * processQuote function, if the quoted publication has a reference module set.
     * @param actionModulesInitReturnDatas The data returned from the action modules' initialization for this given
     * publication. This is ABI-encoded and depends on the action module chosen.
     * @param referenceModuleInitReturnData The data returned from the reference module at initialization. This is
     * ABI-encoded and depends on the reference module chosen.
     * @param transactionExecutor The address of the account that executed this operation.
     * @param timestamp The current block timestamp.
     */
    event QuoteCreated(
        Types.QuoteParams quoteParams,
        uint256 indexed pubId,
        bytes referenceModuleReturnData,
        bytes[] actionModulesInitReturnDatas,
        bytes referenceModuleInitReturnData,
        address transactionExecutor,
        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 LegacyCollectNFTDeployed(
        uint256 indexed profileId,
        uint256 indexed pubId,
        address indexed collectNFT,
        uint256 timestamp
    );
    /**
     * @dev Emitted upon a successful action.
     *
     * @param publicationActionParams The parameters passed to act on a publication.
     * @param actionModuleReturnData The data returned from the action modules. This is ABI-encoded and the format
     * depends on the action module chosen.
     * @param transactionExecutor The address of the account that executed this operation.
     * @param timestamp The current block timestamp.
     */
    event Acted(
        Types.PublicationActionParams publicationActionParams,
        bytes actionModuleReturnData,
        address transactionExecutor,
        uint256 timestamp
    );

    /**
     * @dev Emitted upon a successful follow operation.
     *
     * @param followerProfileId The ID of the profile that executed the follow.
     * @param idOfProfileFollowed The ID of the profile that was followed.
     * @param followTokenIdAssigned The ID of the follow token assigned to the follower.
     * @param followModuleData The data to pass to the follow module, if any.
     * @param processFollowModuleReturnData The data returned by the followed profile follow module's processFollow
     * function, if the followed profile has a reference module set.
     * @param transactionExecutor The address of the account that executed this operation.
     * @param timestamp The timestamp of the follow operation.
     */
    event Followed(
        uint256 indexed followerProfileId,
        uint256 idOfProfileFollowed,
        uint256 followTokenIdAssigned,
        bytes followModuleData,
        bytes processFollowModuleReturnData,
        address transactionExecutor,
        uint256 timestamp
    );

    /**
     * @dev Emitted upon a successful unfollow operation.
     *
     * @param unfollowerProfileId The ID of the profile that executed the unfollow.
     * @param idOfProfileUnfollowed The ID of the profile that was unfollowed.
     * @param transactionExecutor The address of the account that executed this operation.
     * @param timestamp The timestamp of the unfollow operation.
     */
    event Unfollowed(
        uint256 indexed unfollowerProfileId,
        uint256 idOfProfileUnfollowed,
        address transactionExecutor,
        uint256 timestamp
    );

    /**
     * @dev Emitted upon a successful block, through a block status setting operation.
     *
     * @param byProfileId The ID of the profile that executed the block status change.
     * @param idOfProfileBlocked The ID of the profile whose block status have been set to blocked.
     * @param transactionExecutor The address of the account that executed this operation.
     * @param timestamp The timestamp of the block operation.
     */
    event Blocked(
        uint256 indexed byProfileId,
        uint256 idOfProfileBlocked,
        address transactionExecutor,
        uint256 timestamp
    );

    /**
     * @dev Emitted upon a successful unblock, through a block status setting operation.
     *
     * @param byProfileId The ID of the profile that executed the block status change.
     * @param idOfProfileUnblocked The ID of the profile whose block status have been set to unblocked.
     * @param transactionExecutor The address of the account that executed this operation.
     * @param timestamp The timestamp of the unblock operation.
     */
    event Unblocked(
        uint256 indexed byProfileId,
        uint256 idOfProfileUnblocked,
        address transactionExecutor,
        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
    );

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

    /**
     * @notice Emitted when the 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 TreasuryFeeSet(uint16 indexed prevTreasuryFee, uint16 indexed newTreasuryFee, 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 transactionExecutor The address of the account that executed this operation.
     * @param timestamp The current block timestamp.
     */
    event ProfileMetadataSet(
        uint256 indexed profileId,
        string metadata,
        address transactionExecutor,
        uint256 timestamp
    );

    /**
     * @dev Emitted when an address' Profile Guardian state change is triggered.
     *
     * @param wallet The address whose Token Guardian state change is being triggered.
     * @param enabled True if the Token Guardian is being enabled, false if it is being disabled.
     * @param tokenGuardianDisablingTimestamp The UNIX timestamp when disabling the Token Guardian will take effect,
     * if disabling it. Zero if the protection is being enabled.
     * @param timestamp The UNIX timestamp of the change being triggered.
     */
    event TokenGuardianStateChanged(
        address indexed wallet,
        bool indexed enabled,
        uint256 tokenGuardianDisablingTimestamp,
        uint256 timestamp
    );

    /**
     * @dev Emitted when a signer's nonce is used and, as a consequence, the next available nonce is updated.
     *
     * @param signer The signer whose next available nonce was updated.
     * @param nonce The next available nonce that can be used to execute a meta-tx successfully.
     * @param timestamp The UNIX timestamp of the nonce being used.
     */
    event NonceUpdated(address indexed signer, uint256 nonce, uint256 timestamp);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

library Typehash {

    bytes32 constant ACT = keccak256('Act(uint256 publicationActedProfileId,uint256 publicationActedId,uint256 actorProfileId,uint256[] referrerProfileIds,uint256[] referrerPubIds,address actionModuleAddress,bytes actionModuleData,uint256 nonce,uint256 deadline)');

    bytes32 constant CHANGE_DELEGATED_EXECUTORS_CONFIG = keccak256('ChangeDelegatedExecutorsConfig(uint256 delegatorProfileId,address[] delegatedExecutors,bool[] approvals,uint64 configNumber,bool switchToGivenConfig,uint256 nonce,uint256 deadline)');

    bytes32 constant COLLECT_LEGACY = keccak256('CollectLegacy(uint256 publicationCollectedProfileId,uint256 publicationCollectedId,uint256 collectorProfileId,uint256 referrerProfileId,uint256 referrerPubId,bytes collectModuleData,uint256 nonce,uint256 deadline)');

    bytes32 constant COMMENT = keccak256('Comment(uint256 profileId,string contentURI,uint256 pointedProfileId,uint256 pointedPubId,uint256[] referrerProfileIds,uint256[] referrerPubIds,bytes referenceModuleData,address[] actionModules,bytes[] actionModulesInitDatas,address referenceModule,bytes referenceModuleInitData,uint256 nonce,uint256 deadline)');

    bytes32 constant EIP712_DOMAIN = keccak256('EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)');

    bytes32 constant FOLLOW = keccak256('Follow(uint256 followerProfileId,uint256[] idsOfProfilesToFollow,uint256[] followTokenIds,bytes[] datas,uint256 nonce,uint256 deadline)');

    bytes32 constant MIRROR = keccak256('Mirror(uint256 profileId,string metadataURI,uint256 pointedProfileId,uint256 pointedPubId,uint256[] referrerProfileIds,uint256[] referrerPubIds,bytes referenceModuleData,uint256 nonce,uint256 deadline)');

    bytes32 constant POST = keccak256('Post(uint256 profileId,string contentURI,address[] actionModules,bytes[] actionModulesInitDatas,address referenceModule,bytes referenceModuleInitData,uint256 nonce,uint256 deadline)');

    bytes32 constant QUOTE = keccak256('Quote(uint256 profileId,string contentURI,uint256 pointedProfileId,uint256 pointedPubId,uint256[] referrerProfileIds,uint256[] referrerPubIds,bytes referenceModuleData,address[] actionModules,bytes[] actionModulesInitDatas,address referenceModule,bytes referenceModuleInitData,uint256 nonce,uint256 deadline)');

    bytes32 constant SET_BLOCK_STATUS = keccak256('SetBlockStatus(uint256 byProfileId,uint256[] idsOfProfilesToSetBlockStatus,bool[] blockStatus,uint256 nonce,uint256 deadline)');

    bytes32 constant SET_FOLLOW_MODULE = keccak256('SetFollowModule(uint256 profileId,address followModule,bytes followModuleInitData,uint256 nonce,uint256 deadline)');

    bytes32 constant SET_PROFILE_METADATA_URI = keccak256('SetProfileMetadataURI(uint256 profileId,string metadataURI,uint256 nonce,uint256 deadline)');

    bytes32 constant UNFOLLOW = keccak256('Unfollow(uint256 unfollowerProfileId,uint256[] idsOfProfilesToUnfollow,uint256 nonce,uint256 deadline)');
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

/**
 * @title Types
 * @author Lens Protocol
 *
 * @notice A standard library of data types used throughout the Lens Protocol.
 */
library Types {
    /**
     * @notice ERC721Timestamped storage. 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 mint timestamp.
     *
     * @param owner The token owner.
     * @param mintTimestamp The mint timestamp.
     */
    struct TokenData {
        address owner;
        uint96 mintTimestamp;
    }

    /**
     * @notice A struct containing token follow-related data.
     *
     * @param followerProfileId The ID of the profile using the token to follow.
     * @param originalFollowTimestamp The timestamp of the first follow performed with the token.
     * @param followTimestamp The timestamp of the current follow, if a profile is using the token to follow.
     * @param profileIdAllowedToRecover The ID of the profile allowed to recover the follow ID, if any.
     */
    struct FollowData {
        uint160 followerProfileId;
        uint48 originalFollowTimestamp;
        uint48 followTimestamp;
        uint256 profileIdAllowedToRecover;
    }

    /**
     * @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 Nonexistent An indicator showing the queried publication does not exist.
     * @param Post A standard post, having an URI, action modules and no pointer to another publication.
     * @param Comment A comment, having an URI, action modules and a pointer to another publication.
     * @param Mirror A mirror, having a pointer to another publication, but no URI or action modules.
     * @param Quote A quote, having an URI, action modules, and a pointer to another publication.
     */
    enum PublicationType {
        Nonexistent,
        Post,
        Comment,
        Mirror,
        Quote
    }

    /**
     * @notice A struct containing the necessary information to reconstruct an EIP-712 typed data signature.
     *
     * @param signer The address of the signer. Specially needed as a parameter to support EIP-1271.
     * @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 {
        address signer;
        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 address(0) in none.
     * @param followNFT The address of the followNFT associated with this profile. It can be address(0) if the
     * profile has not been followed yet, as the collection is lazy-deployed upon the first follow.
     * @param __DEPRECATED__handle DEPRECATED in V2: handle slot, was replaced with LensHandles.
     * @param __DEPRECATED__imageURI DEPRECATED in V2: The URI to be used for the profile image.
     * @param __DEPRECATED__followNFTURI DEPRECATED in V2: The URI used for the follow NFT image.
     * @param metadataURI MetadataURI is used to store the profile's metadata, for example: displayed name, description,
     * interests, etc.
     */
    struct Profile {
        uint256 pubCount; // offset 0
        address followModule; // offset 1
        address followNFT; // offset 2
        string __DEPRECATED__handle; // offset 3
        string __DEPRECATED__imageURI; // offset 4
        string __DEPRECATED__followNFTURI; // Deprecated in V2 as we have a common tokenURI for all Follows, offset 5
        string metadataURI; // offset 6
    }

    /**
     * @notice A struct containing publication data.
     *
     * @param pointedProfileId The profile token ID to point the publication to.
     * @param pointedPubId The publication ID to point the publication to.
     * These are used to implement the "reference" feature of the platform and is used in:
     * - Mirrors
     * - Comments
     * - Quotes
     * There are (0,0) if the publication is not pointing to any other publication (i.e. the publication is a Post).
     * @param contentURI The URI to set for the content of publication (can be ipfs, arweave, http, etc).
     * @param referenceModule Reference module associated with this profile, if any.
     * @param __DEPRECATED__collectModule Collect module associated with this publication, if any. Deprecated in V2.
     * @param __DEPRECATED__collectNFT Collect NFT associated with this publication, if any. Deprecated in V2.
     * @param pubType The type of publication, can be Nonexistent, Post, Comment, Mirror or Quote.
     * @param rootProfileId The profile ID of the root post (to determine if comments/quotes and mirrors come from it).
     * Posts, V1 publications and publications rooted in V1 publications don't have it set.
     * @param rootPubId The publication ID of the root post (to determine if comments/quotes and mirrors come from it).
     * Posts, V1 publications and publications rooted in V1 publications don't have it set.
     * @param actionModuleEnabled The action modules enabled in a given publication.
     */
    struct Publication {
        uint256 pointedProfileId;
        uint256 pointedPubId;
        string contentURI;
        address referenceModule;
        address __DEPRECATED__collectModule; // Deprecated in V2
        address __DEPRECATED__collectNFT; // Deprecated in V2
        // Added in Lens V2, so these will be zero for old publications:
        PublicationType pubType;
        uint256 rootProfileId;
        uint256 rootPubId;
        mapping(address => bool) actionModuleEnabled;
    }

    struct PublicationMemory {
        uint256 pointedProfileId;
        uint256 pointedPubId;
        string contentURI;
        address referenceModule;
        address __DEPRECATED__collectModule; // Deprecated in V2
        address __DEPRECATED__collectNFT; // Deprecated in V2
        // Added in Lens V2, so these will be zero for old publications:
        PublicationType pubType;
        uint256 rootProfileId;
        uint256 rootPubId;
        // bytes32 __ACTION_MODULE_ENABLED_MAPPING; // Mappings are not supported in memory.
    }

    /**
     * @notice A struct containing the parameters required for the `createProfile()` function.
     *
     * @param to The address receiving the profile.
     * @param followModule The follow module to use, can be the zero address.
     * @param followModuleInitData The follow module initialization data, if any.
     */
    struct CreateProfileParams {
        address to;
        address followModule;
        bytes followModuleInitData;
    }

    /**
     * @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 actionModules The action modules to set for this new publication.
     * @param actionModulesInitDatas The data to pass to the action modules' 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 PostParams {
        uint256 profileId;
        string contentURI;
        address[] actionModules;
        bytes[] actionModulesInitDatas;
        address referenceModule;
        bytes referenceModuleInitData;
    }

    /**
     * @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 pointedProfileId The profile token ID to point the comment to.
     * @param pointedPubId The publication ID to point the comment to.
     * @param referrerProfileId The profile token ID of the publication that referred to the publication being commented on/quoted.
     * @param referrerPubId The ID of the publication that referred to the publication being commented on/quoted.
     * @param referenceModuleData The data passed to the reference module.
     * @param actionModules The action modules to set for this new publication.
     * @param actionModulesInitDatas The data to pass to the action modules' 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 CommentParams {
        uint256 profileId;
        string contentURI;
        uint256 pointedProfileId;
        uint256 pointedPubId;
        uint256[] referrerProfileIds;
        uint256[] referrerPubIds;
        bytes referenceModuleData;
        address[] actionModules;
        bytes[] actionModulesInitDatas;
        address referenceModule;
        bytes referenceModuleInitData;
    }

    /**
     * @notice A struct containing the parameters required for the `quote()` function.
     *
     * @param profileId The token ID of the profile to publish to.
     * @param contentURI The URI to set for this new publication.
     * @param pointedProfileId The profile token ID of the publication author that is quoted.
     * @param pointedPubId The publication ID that is quoted.
     * @param referrerProfileId The profile token ID of the publication that referred to the publication being commented on/quoted.
     * @param referrerPubId The ID of the publication that referred to the publication being commented on/quoted.
     * @param referenceModuleData The data passed to the reference module.
     * @param actionModules The action modules to set for this new publication.
     * @param actionModulesInitDatas The data to pass to the action modules' 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 QuoteParams {
        uint256 profileId;
        string contentURI;
        uint256 pointedProfileId;
        uint256 pointedPubId;
        uint256[] referrerProfileIds;
        uint256[] referrerPubIds;
        bytes referenceModuleData;
        address[] actionModules;
        bytes[] actionModulesInitDatas;
        address referenceModule;
        bytes referenceModuleInitData;
    }

    /**
     * @notice A struct containing the parameters required for the `comment()` or `quote()` internal functions.
     *
     * @param profileId The token ID of the profile to publish to.
     * @param contentURI The URI to set for this new publication.
     * @param pointedProfileId The profile token ID of the publication author that is commented on/quoted.
     * @param pointedPubId The publication ID that is commented on/quoted.
     * @param referrerProfileId The profile token ID of the publication that referred to the publication being commented on/quoted.
     * @param referrerPubId The ID of the publication that referred to the publication being commented on/quoted.
     * @param referenceModuleData The data passed to the reference module.
     * @param actionModules The action modules to set for this new publication.
     * @param actionModulesInitDatas The data to pass to the action modules' 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 ReferencePubParams {
        uint256 profileId;
        string contentURI;
        uint256 pointedProfileId;
        uint256 pointedPubId;
        uint256[] referrerProfileIds;
        uint256[] referrerPubIds;
        bytes referenceModuleData;
        address[] actionModules;
        bytes[] actionModulesInitDatas;
        address referenceModule;
        bytes referenceModuleInitData;
    }

    /**
     * @notice A struct containing the parameters required for the `mirror()` function.
     *
     * @param profileId The token ID of the profile to publish to.
     * @param metadataURI the URI containing metadata attributes to attach to this mirror publication.
     * @param pointedProfileId The profile token ID to point the mirror to.
     * @param pointedPubId The publication ID to point the mirror to.
     * @param referenceModuleData The data passed to the reference module.
     */
    struct MirrorParams {
        uint256 profileId;
        string metadataURI;
        uint256 pointedProfileId;
        uint256 pointedPubId;
        uint256[] referrerProfileIds;
        uint256[] referrerPubIds;
        bytes referenceModuleData;
    }

    /**
     * Deprecated in V2: Will be removed after some time after upgrading to V2.
     * @notice A struct containing the parameters required for the legacy `collect()` function.
     * @dev The referrer can only be a mirror of the publication being collected.
     *
     * @param publicationCollectedProfileId The token ID of the profile that published the publication to collect.
     * @param publicationCollectedId The publication to collect's publication ID.
     * @param collectorProfileId The collector profile.
     * @param referrerProfileId The ID of a profile that authored a mirror that helped discovering the collected pub.
     * @param referrerPubId The ID of the mirror that helped discovering the collected pub.
     * @param collectModuleData The arbitrary data to pass to the collectModule if needed.
     */
    struct LegacyCollectParams {
        uint256 publicationCollectedProfileId;
        uint256 publicationCollectedId;
        uint256 collectorProfileId;
        uint256 referrerProfileId;
        uint256 referrerPubId;
        bytes collectModuleData;
    }

    /**
     * @notice A struct containing the parameters required for the `action()` function.
     *
     * @param publicationActedProfileId The token ID of the profile that published the publication to action.
     * @param publicationActedId The publication to action's publication ID.
     * @param actorProfileId The actor profile.
     * @param referrerProfileId
     * @param referrerPubId
     * @param actionModuleAddress
     * @param actionModuleData The arbitrary data to pass to the actionModule if needed.
     */
    struct PublicationActionParams {
        uint256 publicationActedProfileId;
        uint256 publicationActedId;
        uint256 actorProfileId;
        uint256[] referrerProfileIds;
        uint256[] referrerPubIds;
        address actionModuleAddress;
        bytes actionModuleData;
    }

    struct ProcessActionParams {
        uint256 publicationActedProfileId;
        uint256 publicationActedId;
        uint256 actorProfileId;
        address actorProfileOwner;
        address transactionExecutor;
        uint256[] referrerProfileIds;
        uint256[] referrerPubIds;
        Types.PublicationType[] referrerPubTypes;
        bytes actionModuleData;
    }

    struct ProcessCommentParams {
        uint256 profileId;
        uint256 pubId;
        address transactionExecutor;
        uint256 pointedProfileId;
        uint256 pointedPubId;
        uint256[] referrerProfileIds;
        uint256[] referrerPubIds;
        Types.PublicationType[] referrerPubTypes;
        bytes data;
    }

    struct ProcessQuoteParams {
        uint256 profileId;
        uint256 pubId;
        address transactionExecutor;
        uint256 pointedProfileId;
        uint256 pointedPubId;
        uint256[] referrerProfileIds;
        uint256[] referrerPubIds;
        Types.PublicationType[] referrerPubTypes;
        bytes data;
    }

    struct ProcessMirrorParams {
        uint256 profileId;
        uint256 pubId;
        address transactionExecutor;
        uint256 pointedProfileId;
        uint256 pointedPubId;
        uint256[] referrerProfileIds;
        uint256[] referrerPubIds;
        Types.PublicationType[] referrerPubTypes;
        bytes data;
    }

    /**
     * @notice A struct containing a profile's delegated executors configuration.
     *
     * @param isApproved Tells when an address is approved as delegated executor in the given configuration number.
     * @param configNumber Current configuration number in use.
     * @param prevConfigNumber Previous configuration number set, before switching to the current one.
     * @param maxConfigNumberSet Maximum configuration number ever used.
     */
    struct DelegatedExecutorsConfig {
        mapping(uint256 => mapping(address => bool)) isApproved; // isApproved[configNumber][delegatedExecutor]
        uint64 configNumber;
        uint64 prevConfigNumber;
        uint64 maxConfigNumberSet;
    }

    struct TreasuryData {
        address treasury;
        uint16 treasuryFeeBPS;
    }

    struct MigrationParams {
        address lensHandlesAddress;
        address tokenHandleRegistryAddress;
        address legacyFeeFollowModule;
        address legacyProfileFollowModule;
        address newFeeFollowModule;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

import {ILensModule} from 'contracts/modules/interfaces/ILensModule.sol';

abstract contract LensModule is ILensModule {
    /// @inheritdoc ILensModule
    function supportsInterface(bytes4 interfaceID) public pure virtual override returns (bool) {
        return interfaceID == bytes4(keccak256(abi.encodePacked('LENS_MODULE')));
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

import {Ownable} from '@openzeppelin/contracts/access/Ownable.sol';
import {LensModule} from 'contracts/modules/LensModule.sol';

contract LensModuleMetadata is LensModule, Ownable {
    string public metadataURI;

    constructor(address owner_) Ownable() {
        _transferOwnership(owner_);
    }

    function setModuleMetadataURI(string memory _metadataURI) external onlyOwner {
        metadataURI = _metadataURI;
    }

    function getModuleMetadataURI() external view returns (string memory) {
        return metadataURI;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.18;

import {LensModuleMetadata} from 'contracts/modules/LensModuleMetadata.sol';

contract LensModuleMetadataInitializable is LensModuleMetadata {
    constructor(address owner_) LensModuleMetadata(owner_) {}

    function initialize(address moduleOwner) external virtual {
        if (owner() != address(0) || moduleOwner == address(0)) {
            revert();
        }
        _transferOwnership(moduleOwner);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.18;

import {IPublicationActionModule} from 'contracts/interfaces/IPublicationActionModule.sol';
import {ICollectModule} from 'contracts/modules/interfaces/ICollectModule.sol';
import {ICollectNFT} from 'contracts/interfaces/ICollectNFT.sol';
import {Types} from 'contracts/libraries/constants/Types.sol';
import {ModuleTypes} from 'contracts/modules/libraries/constants/ModuleTypes.sol';
import {Clones} from '@openzeppelin/contracts/proxy/Clones.sol';
import {Errors} from 'contracts/modules/constants/Errors.sol';
import {HubRestricted} from 'contracts/base/HubRestricted.sol';
import {ILensModule} from 'contracts/modules/interfaces/ILensModule.sol';

import {LensModuleMetadataInitializable} from 'contracts/modules/LensModuleMetadataInitializable.sol';

/**
 * @title CollectPublicationAction
 * @author LensProtocol
 * @notice An Publication Action module that allows users to collect publications.
 * @custom:upgradeable Transparent upgradeable proxy without initializer.
 */
contract CollectPublicationAction is LensModuleMetadataInitializable, HubRestricted, IPublicationActionModule {
    function supportsInterface(bytes4 interfaceID) public pure override returns (bool) {
        return interfaceID == type(IPublicationActionModule).interfaceId || super.supportsInterface(interfaceID);
    }

    struct CollectData {
        address collectModule;
        address collectNFT;
    }

    event CollectModuleRegistered(address collectModule, string metadata, 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 collectedProfileId The token ID of the profile that published the collected publication.
     * @param collectedPubId The ID of the collected publication.
     * @param collectorProfileId The token ID of the profile that collected the publication.
     * @param nftRecipient The address that received the collect NFT.
     * @param collectActionData The custom data passed to the collect module, if any.
     * @param collectActionResult The data returned from the collect module's collect action. This is ABI-encoded
     * and depends on the collect module chosen.
     * @param collectNFT The address of the NFT collection where the minted collect NFT belongs to.
     * @param tokenId The token ID of the collect NFT that was minted as a collect of the publication.
     * @param transactionExecutor The address of the account that executed this operation.
     * @param timestamp The current block timestamp.
     */
    event Collected(
        uint256 indexed collectedProfileId,
        uint256 indexed collectedPubId,
        uint256 indexed collectorProfileId,
        address nftRecipient,
        bytes collectActionData,
        bytes collectActionResult,
        address collectNFT,
        uint256 tokenId,
        address transactionExecutor,
        uint256 timestamp
    );

    error NotCollectModule();

    address public immutable COLLECT_NFT_IMPL;

    mapping(address collectModule => bool isWhitelisted) internal _collectModuleRegistered;
    mapping(uint256 profileId => mapping(uint256 pubId => CollectData collectData)) internal _collectDataByPub;

    constructor(
        address hub,
        address collectNFTImpl,
        address moduleOwner
    ) HubRestricted(hub) LensModuleMetadataInitializable(moduleOwner) {
        COLLECT_NFT_IMPL = collectNFTImpl;
    }

    function verifyCollectModule(address collectModule) public returns (bool) {
        registerCollectModule(collectModule);
        return true;
    }

    function registerCollectModule(address collectModule) public returns (bool) {
        if (_collectModuleRegistered[collectModule]) {
            return false;
        } else {
            if (!ILensModule(collectModule).supportsInterface(type(ICollectModule).interfaceId)) {
                revert NotCollectModule();
            }

            string memory metadata = ILensModule(collectModule).getModuleMetadataURI();
            emit CollectModuleRegistered(collectModule, metadata, block.timestamp);
            _collectModuleRegistered[collectModule] = true;
            return true;
        }
    }

    function initializePublicationAction(
        uint256 profileId,
        uint256 pubId,
        address transactionExecutor,
        bytes calldata data
    ) external override onlyHub returns (bytes memory) {
        (address collectModule, bytes memory collectModuleInitData) = abi.decode(data, (address, bytes));
        if (_collectDataByPub[profileId][pubId].collectModule != address(0)) {
            revert Errors.AlreadyInitialized();
        }
        verifyCollectModule(collectModule);
        _collectDataByPub[profileId][pubId].collectModule = collectModule;
        ICollectModule(collectModule).initializePublicationCollectModule(
            profileId,
            pubId,
            transactionExecutor,
            collectModuleInitData
        );
        return '';
    }

    function processPublicationAction(
        Types.ProcessActionParams calldata processActionParams
    ) external override onlyHub returns (bytes memory) {
        address collectModule = _collectDataByPub[processActionParams.publicationActedProfileId][
            processActionParams.publicationActedId
        ].collectModule;
        if (collectModule == address(0)) {
            revert Errors.CollectNotAllowed();
        }
        address collectNFT = _getOrDeployCollectNFT({
            publicationCollectedProfileId: processActionParams.publicationActedProfileId,
            publicationCollectedId: processActionParams.publicationActedId,
            collectNFTImpl: COLLECT_NFT_IMPL
        });
        (address collectNftRecipient, bytes memory collectData) = abi.decode(
            processActionParams.actionModuleData,
            (address, bytes)
        );
        uint256 tokenId = ICollectNFT(collectNFT).mint(collectNftRecipient);
        bytes memory collectActionResult = _processCollect(collectModule, collectData, processActionParams);
        _emitCollectedEvent(
            processActionParams,
            collectNftRecipient,
            collectData,
            collectActionResult,
            collectNFT,
            tokenId
        );
        return abi.encode(collectNFT, tokenId, collectModule, collectActionResult);
    }

    function _emitCollectedEvent(
        Types.ProcessActionParams calldata processActionParams,
        address collectNftRecipient,
        bytes memory collectData,
        bytes memory collectActionResult,
        address collectNFT,
        uint256 tokenId
    ) private {
        emit Collected({
            collectedProfileId: processActionParams.publicationActedProfileId,
            collectedPubId: processActionParams.publicationActedId,
            collectorProfileId: processActionParams.actorProfileId,
            nftRecipient: collectNftRecipient,
            collectActionData: collectData,
            collectActionResult: collectActionResult,
            collectNFT: collectNFT,
            tokenId: tokenId,
            transactionExecutor: processActionParams.transactionExecutor,
            timestamp: block.timestamp
        });
    }

    function getCollectData(uint256 profileId, uint256 pubId) external view returns (CollectData memory) {
        return _collectDataByPub[profileId][pubId];
    }

    function _getOrDeployCollectNFT(
        uint256 publicationCollectedProfileId,
        uint256 publicationCollectedId,
        address collectNFTImpl
    ) private returns (address) {
        address collectNFT = _collectDataByPub[publicationCollectedProfileId][publicationCollectedId].collectNFT;
        if (collectNFT == address(0)) {
            collectNFT = _deployCollectNFT(publicationCollectedProfileId, publicationCollectedId, collectNFTImpl);
            _collectDataByPub[publicationCollectedProfileId][publicationCollectedId].collectNFT = collectNFT;
        }
        return collectNFT;
    }

    function _processCollect(
        address collectModule,
        bytes memory collectData,
        Types.ProcessActionParams calldata processActionParams
    ) private returns (bytes memory) {
        return
            ICollectModule(collectModule).processCollect(
                ModuleTypes.ProcessCollectParams({
                    publicationCollectedProfileId: processActionParams.publicationActedProfileId,
                    publicationCollectedId: processActionParams.publicationActedId,
                    collectorProfileId: processActionParams.actorProfileId,
                    collectorProfileOwner: processActionParams.actorProfileOwner,
                    transactionExecutor: processActionParams.transactionExecutor,
                    referrerProfileIds: processActionParams.referrerProfileIds,
                    referrerPubIds: processActionParams.referrerPubIds,
                    referrerPubTypes: processActionParams.referrerPubTypes,
                    data: collectData
                })
            );
    }

    function _deployCollectNFT(uint256 profileId, uint256 pubId, address collectNFTImpl) private returns (address) {
        address collectNFT = Clones.clone(collectNFTImpl);

        ICollectNFT(collectNFT).initialize(profileId, pubId);
        emit CollectNFTDeployed(profileId, pubId, collectNFT, block.timestamp);

        return collectNFT;
    }

    function isCollectModuleRegistered(address collectModule) external view returns (bool) {
        return _collectModuleRegistered[collectModule];
    }
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

library Errors {
    error FollowInvalid();
    error ModuleDataMismatch();
    error NotHub();
    error InitParamsInvalid();
    error InvalidParams();
    error MintLimitExceeded();
    error CollectExpired();
    error NotActionModule();
    error CollectNotAllowed();
    error AlreadyInitialized();
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0;

import {ICollectModule} from 'contracts/modules/interfaces/ICollectModule.sol';
import {ModuleTypes} from 'contracts/modules/libraries/constants/ModuleTypes.sol';

/**
 * @notice A struct containing the necessary data to execute collect actions on a publication.
 *
 * @param amount The collecting cost associated with this publication. 0 for free collect.
 * @param collectLimit The maximum number of collects for this publication. 0 for no limit.
 * @param currency The currency associated with this publication.
 * @param currentCollects The current number of collects for this publication.
 * @param referralFee The referral fee associated with this publication.
 * @param followerOnly True if only followers of publisher may collect the post.
 * @param endTimestamp The end timestamp after which collecting is impossible. 0 for no expiry.
 * @param recipient Recipient of collect fees.
 */
struct BaseProfilePublicationData {
    uint160 amount;
    uint96 collectLimit;
    address currency;
    uint96 currentCollects;
    address recipient;
    uint16 referralFee;
    bool followerOnly;
    uint72 endTimestamp;
}

/**
 * @notice A struct containing the necessary data to initialize this Base Collect Module.
 *
 * @param amount The collecting cost associated with this publication. 0 for free collect.
 * @param collectLimit The maximum number of collects for this publication. 0 for no limit.
 * @param currency The currency associated with this publication.
 * @param referralFee The referral fee associated with this publication.
 * @param followerOnly True if only followers of publisher may collect the post.
 * @param endTimestamp The end timestamp after which collecting is impossible. 0 for no expiry.
 * @param recipient Recipient of collect fees.
 */
struct BaseFeeCollectModuleInitData {
    uint160 amount;
    uint96 collectLimit;
    address currency;
    uint16 referralFee;
    bool followerOnly;
    uint72 endTimestamp;
    address recipient;
}

interface IBaseFeeCollectModule is ICollectModule {
    /**
     * @notice Returns the Base publication data for a given publication, or an empty struct if that publication was not
     * initialized with this module.
     *
     * @param profileId The token ID of the profile mapped to the publication to query.
     * @param pubId The publication ID of the publication to query.
     *
     * @return The BaseProfilePublicationData struct mapped to that publication.
     */
    function getBasePublicationData(
        uint256 profileId,
        uint256 pubId
    ) external view returns (BaseProfilePublicationData memory);

    /**
     * @notice Calculates and returns the collect fee of a publication.
     * @dev Override this function to use a different formula for the fee.
     *
     * @return The collect fee of the specified publication.
     */
    function calculateFee(
        ModuleTypes.ProcessCollectParams calldata processCollectParams
    ) external view returns (uint160);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

import {ModuleTypes} from 'contracts/modules/libraries/constants/ModuleTypes.sol';

/**
 * @title ICollectModule
 * @author Lens Protocol
 *
 * @notice This is the standard interface for all Lens-compatible CollectModules.
 * Collect modules allow users to execute custom logic upon a collect action over a publication, like:
 *  - Only allow the collect if the collector is following the publication author.
 *  - Only allow the collect if the collector has made a payment to
 *  - Allow any collect but only during the first 24 hours.
 *  - Etc.
 */
interface ICollectModule {
    /**
     * @notice Initializes data for a given publication being published.
     * @custom:permissions LensHub.
     *
     * @param profileId The token ID of the profile publishing the publication.
     * @param pubId The associated publication's LensHub publication ID.
     * @param transactionExecutor The owner or an approved delegated executor.
     * @param data Arbitrary data __passed from the user!__ to be decoded.
     *
     * @return bytes Any custom ABI-encoded data. This will be a LensHub event params that can be used by
     * indexers or UIs.
     */
    function initializePublicationCollectModule(
        uint256 profileId,
        uint256 pubId,
        address transactionExecutor,
        bytes calldata data
    ) external returns (bytes memory);

    /**
     * @notice Processes a collect action for a given publication.
     * @custom:permissions LensHub.
     *
     * @param processCollectParams The parameters for the collect action.
     *
     * @return bytes Any custom ABI-encoded data. This will be a LensHub event params that can be used by
     * indexers or UIs.
     */
    function processCollect(
        ModuleTypes.ProcessCollectParams calldata processCollectParams
    ) external returns (bytes memory);
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.6.0;

import {IERC165} from '@openzeppelin/contracts/utils/introspection/IERC165.sol';

interface ILensModule is IERC165 {
    /// @dev for now we check for keccak('LENS_MODULE');
    /// Override this and add the type(IModuleInterface).interfaceId for corresponding module type
    function supportsInterface(bytes4 interfaceID) external view returns (bool);

    /// @notice Human-readable description of the module
    // Can be JSON
    // Can be contract source code
    // Can be github link
    // Can be ipfs with documentation
    // etc
    function getModuleMetadataURI() external view returns (string memory);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0;

import {Types} from 'contracts/libraries/constants/Types.sol';

/**
 * @title Types
 * @author Lens Protocol
 *
 * @notice A standard library of data types used throughout the Lens Protocol modules.
 */
library ModuleTypes {
    struct ProcessCollectParams {
        uint256 publicationCollectedProfileId;
        uint256 publicationCollectedId;
        uint256 collectorProfileId;
        address collectorProfileOwner;
        address transactionExecutor;
        uint256[] referrerProfileIds;
        uint256[] referrerPubIds;
        Types.PublicationType[] referrerPubTypes;
        bytes data;
    }
}

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

pragma solidity ^0.8.0;

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

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC1271.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC1271 standard signature validation method for
 * contracts as defined in https://eips.ethereum.org/EIPS/eip-1271[ERC-1271].
 *
 * _Available since v4.1._
 */
interface IERC1271 {
    /**
     * @dev Should return whether the signature provided is valid for the provided data
     * @param hash      Hash of the data to be signed
     * @param signature Signature byte array associated with _data
     */
    function isValidSignature(bytes32 hash, bytes memory signature) external view returns (bytes4 magicValue);
}

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

pragma solidity ^0.8.0;

/**
 * @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for
 * deploying minimal proxy contracts, also known as "clones".
 *
 * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies
 * > a minimal bytecode implementation that delegates all calls to a known, fixed address.
 *
 * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2`
 * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the
 * deterministic method.
 *
 * _Available since v3.4._
 */
library Clones {
    /**
     * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
     *
     * This function uses the create opcode, which should never revert.
     */
    function clone(address implementation) internal returns (address instance) {
        /// @solidity memory-safe-assembly
        assembly {
            // Cleans the upper 96 bits of the `implementation` word, then packs the first 3 bytes
            // of the `implementation` address with the bytecode before the address.
            mstore(0x00, or(shr(0xe8, shl(0x60, implementation)), 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000))
            // Packs the remaining 17 bytes of `implementation` with the bytecode after the address.
            mstore(0x20, or(shl(0x78, implementation), 0x5af43d82803e903d91602b57fd5bf3))
            instance := create(0, 0x09, 0x37)
        }
        require(instance != address(0), "ERC1167: create failed");
    }

    /**
     * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
     *
     * This function uses the create2 opcode and a `salt` to deterministically deploy
     * the clone. Using the same `implementation` and `salt` multiple time will revert, since
     * the clones cannot be deployed twice at the same address.
     */
    function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) {
        /// @solidity memory-safe-assembly
        assembly {
            // Cleans the upper 96 bits of the `implementation` word, then packs the first 3 bytes
            // of the `implementation` address with the bytecode before the address.
            mstore(0x00, or(shr(0xe8, shl(0x60, implementation)), 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000))
            // Packs the remaining 17 bytes of `implementation` with the bytecode after the address.
            mstore(0x20, or(shl(0x78, implementation), 0x5af43d82803e903d91602b57fd5bf3))
            instance := create2(0, 0x09, 0x37, salt)
        }
        require(instance != address(0), "ERC1167: create2 failed");
    }

    /**
     * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
     */
    function predictDeterministicAddress(
        address implementation,
        bytes32 salt,
        address deployer
    ) internal pure returns (address predicted) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(add(ptr, 0x38), deployer)
            mstore(add(ptr, 0x24), 0x5af43d82803e903d91602b57fd5bf3ff)
            mstore(add(ptr, 0x14), implementation)
            mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73)
            mstore(add(ptr, 0x58), salt)
            mstore(add(ptr, 0x78), keccak256(add(ptr, 0x0c), 0x37))
            predicted := keccak256(add(ptr, 0x43), 0x55)
        }
    }

    /**
     * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
     */
    function predictDeterministicAddress(address implementation, bytes32 salt)
        internal
        view
        returns (address predicted)
    {
        return predictDeterministicAddress(implementation, salt, address(this));
    }
}

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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`.
     *
     * 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;

    /**
     * @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 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: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * 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 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 the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @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);
}

// 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);
}

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

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

// 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;
    }
}

// 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);
}

{
  "remappings": [
    "@ensdomains/=node_modules/@ensdomains/",
    "@openzeppelin/=lib/openzeppelin-contracts/",
    "@seadrop/=lib/seadrop/src/",
    "ERC721A-Upgradeable/=lib/seadrop/lib/ERC721A-Upgradeable/contracts/",
    "ERC721A/=lib/seadrop/lib/ERC721A/contracts/",
    "create2-helpers/=lib/seadrop/lib/create2-helpers/",
    "create2-scripts/=lib/seadrop/lib/create2-helpers/script/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/seadrop/lib/operator-filter-registry/lib/openzeppelin-contracts/lib/erc4626-tests/",
    "eth-gas-reporter/=node_modules/eth-gas-reporter/",
    "forge-std/=lib/forge-std/src/",
    "hardhat/=node_modules/hardhat/",
    "murky/=lib/seadrop/lib/murky/src/",
    "openzeppelin-contracts-upgradeable/=lib/seadrop/lib/openzeppelin-contracts-upgradeable/contracts/",
    "openzeppelin-contracts/=lib/seadrop/lib/openzeppelin-contracts/contracts/",
    "operator-filter-registry/=lib/seadrop/lib/operator-filter-registry/src/",
    "seadrop/=lib/seadrop/",
    "solady/=lib/solady/src/",
    "solmate/=lib/seadrop/lib/solmate/src/",
    "utility-contracts/=lib/seadrop/lib/utility-contracts/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 10
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "viaIR": true,
  "libraries": {
    "contracts/libraries/MetaTxLib.sol": {
      "MetaTxLib": "0xf191c489e4ba0f448ea08a5fd27e9c928643f5c7"
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"lensHub","type":"address"},{"internalType":"address","name":"collectPublicationAction","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"COLLECT_PUBLICATION_ACTION","outputs":[{"internalType":"contract CollectPublicationAction","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"HUB","outputs":[{"internalType":"contract ILensHub","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint8","name":"increment","type":"uint8"}],"name":"incrementNonce","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"signer","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"publicationActedProfileId","type":"uint256"},{"internalType":"uint256","name":"publicationActedId","type":"uint256"},{"internalType":"uint256","name":"actorProfileId","type":"uint256"},{"internalType":"uint256[]","name":"referrerProfileIds","type":"uint256[]"},{"internalType":"uint256[]","name":"referrerPubIds","type":"uint256[]"},{"internalType":"address","name":"actionModuleAddress","type":"address"},{"internalType":"bytes","name":"actionModuleData","type":"bytes"}],"internalType":"struct Types.PublicationActionParams","name":"publicationActionParams","type":"tuple"}],"name":"publicCollect","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"publicationActedProfileId","type":"uint256"},{"internalType":"uint256","name":"publicationActedId","type":"uint256"},{"internalType":"uint256","name":"actorProfileId","type":"uint256"},{"internalType":"uint256[]","name":"referrerProfileIds","type":"uint256[]"},{"internalType":"uint256[]","name":"referrerPubIds","type":"uint256[]"},{"internalType":"address","name":"actionModuleAddress","type":"address"},{"internalType":"bytes","name":"actionModuleData","type":"bytes"}],"internalType":"struct Types.PublicationActionParams","name":"publicationActionParams","type":"tuple"},{"components":[{"internalType":"address","name":"signer","type":"address"},{"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 Types.EIP712Signature","name":"signature","type":"tuple"}],"name":"publicCollectWithSig","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"components":[{"internalType":"uint256","name":"publicationActedProfileId","type":"uint256"},{"internalType":"uint256","name":"publicationActedId","type":"uint256"},{"internalType":"uint256","name":"actorProfileId","type":"uint256"},{"internalType":"uint256[]","name":"referrerProfileIds","type":"uint256[]"},{"internalType":"uint256[]","name":"referrerPubIds","type":"uint256[]"},{"internalType":"address","name":"actionModuleAddress","type":"address"},{"internalType":"bytes","name":"actionModuleData","type":"bytes"}],"internalType":"struct Types.PublicationActionParams","name":"publicationActionParams","type":"tuple"}],"name":"publicFreeAct","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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000000000000000000000000db46d1dc155634fbc732f92e853b10b288ad5a1d0000000000000000000000000d90c58cbe787cd70b5effe94ce58185d72143fb

-----Decoded View---------------
Arg [0] : lensHub (address): 0xDb46d1Dc155634FbC732f92E853b10B288AD5a1d
Arg [1] : collectPublicationAction (address): 0x0D90C58cBe787CD70B5Effe94Ce58185D72143fB

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000db46d1dc155634fbc732f92e853b10b288ad5a1d
Arg [1] : 0000000000000000000000000d90c58cbe787cd70b5effe94ce58185d72143fb