// SPDX-License-Identifier: CC0-1.0
pragma solidity ^0.8.20;

import {IValidationRegistry, VerdictAttestation} from "../IPolicyAttestation.sol";

/// @notice Test double for an ERC-8004-style Validation Registry — records the last attestation
/// per (agentId, nullifier) so a test can assert the handoff payload.
contract MockValidationRegistry is IValidationRegistry {
    mapping(uint256 => mapping(bytes32 => VerdictAttestation)) public recorded;

    function recordVerdict(VerdictAttestation calldata a) external {
        recorded[a.agentId][a.nullifier] = a;
        emit VerdictRecorded(a.agentId, a.nullifier, a.mechanism);
    }

    function get(uint256 agentId, bytes32 nullifier) external view returns (VerdictAttestation memory) {
        return recorded[agentId][nullifier];
    }
}