BurnVerifierL1

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.30;

/// @title BurnVerifierL1
/// @author Shibburn.com
/// @notice Finalizes verified burn reports and triggers the actual SHIB burn on Ethereum.
/// @dev Hardcoded and permissionless — anyone can call finalizeBurn() once verified.

interface IShibburnL1 {
    function burn() external;
}

contract BurnVerifierL1 {
    /// @notice Permanent link to official ShibburnL1 contract
    IShibburnL1 public constant shibburn = IShibburnL1(0x5476E7F4d7691359504875D256B5B8533B8eE173);

    /// @notice Prevents duplicate report execution
    mapping(bytes32 => bool) public executedReports;

    /// @notice Emitted when a report is finalized and L1 burn is triggered
    event ReportFinalized(bytes32 indexed reportId, uint256 amount, uint256 timestamp);

    /// @notice Finalizes a verified burn report and calls ShibburnL1.burn()
    /// @param reportId Unique identifier emitted by L2
    /// @param amount Reported burn amount (for event record only)
    function finalizeBurn(bytes32 reportId, uint256 amount) external {
        require(!executedReports[reportId], "already executed");
        require(amount > 0, "amount=0");

        executedReports[reportId] = true;
        shibburn.burn(); // Auto-burn entire SHIB balance held in L1 contract

        emit ReportFinalized(reportId, amount, block.timestamp);
    }

    /// @notice View helper to check if a report was finalized
    function isExecuted(bytes32 reportId) external view returns (bool) {
        return executedReports[reportId];
    }
}