// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.17;

import "./IIdentity.sol";

interface IClaimIssuer is IIdentity {

    /**
     * @dev Emitted when a claim is revoked.
     *
     * Specification: MUST be triggered when revoking a claim.
     */
    event ClaimRevoked(bytes indexed signature);

    /**
     * @dev Revoke a claim previously issued, the claim is no longer considered as valid after revocation.
     * @notice will fetch the claim from the identity contract (unsafe).
     * @param _claimId the id of the claim
     * @param _identity the address of the identity contract
     * @return isRevoked true when the claim is revoked
     */
    function revokeClaim(bytes32 _claimId, address _identity) external returns(bool);

    /**
     * @dev Revoke a claim previously issued, the claim is no longer considered as valid after revocation.
     * @param signature the signature of the claim
     */
    function revokeClaimBySignature(bytes calldata signature) external;

    /**
     * @dev Returns revocation status of a claim.
     * @param _sig the signature of the claim
     * @return isRevoked true if the claim is revoked and false otherwise
     */
    function isClaimRevoked(bytes calldata _sig) external view returns (bool);

    /**
     * @dev Checks if a claim is valid.
     * @param _identity the identity contract related to the claim
     * @param claimTopic the claim topic of the claim
     * @param sig the signature of the claim
     * @param data the data field of the claim
     * @return claimValid true if the claim is valid, false otherwise
     */
    function isClaimValid(
        IIdentity _identity,
        uint256 claimTopic,
        bytes calldata sig,
        bytes calldata data)
    external view returns (bool);
}