// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity >=0.8.22;

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

/// @notice Enum representing the type of claim functions supported by a Merkle campaign.
/// @custom:value0 DEFAULT Activates `claim`, `claimTo`, and `claimViaSig` functions.
/// @custom:value1 ATTEST Activates `claimViaAttestation` function only.
/// @custom:value2 EXECUTE Activates `claimAndExecute` function only.
enum ClaimType {
    DEFAULT,
    ATTEST,
    EXECUTE
}

library MerkleBase {
    /// @notice Struct encapsulating the constructor parameters of {SablierMerkleBase} contract.
    /// @dev The fields are arranged alphabetically.
    /// @param campaignCreator The address of campaign creator which should be the same as the `msg.sender`.
    /// @param campaignName The name of the campaign.
    /// @param campaignStartTime The start time of the campaign, as a Unix timestamp.
    /// @param claimType The type of claim functions to be enabled in the campaign.
    /// @param comptroller The address of the comptroller contract.
    /// @param expiration The expiration of the campaign, as a Unix timestamp. A value of zero means the campaign does
    /// not expire.
    /// @param initialAdmin The initial admin of the campaign.
    /// @param ipfsCID The content identifier for indexing the contract on IPFS. An empty value may break certain UI
    /// features that depend upon the IPFS CID.
    /// @param merkleRoot The Merkle root of the claim data.
    /// @param token The contract address of the ERC-20 token to be distributed.
    struct ConstructorParams {
        address campaignCreator;
        string campaignName;
        uint40 campaignStartTime;
        ClaimType claimType;
        address comptroller;
        uint40 expiration;
        address initialAdmin;
        string ipfsCID;
        bytes32 merkleRoot;
        IERC20 token;
    }
}