BurnVerifierL1

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

/// @title BurnVerifierL1
/// @author Shibburn.com
/// @notice Finalizes verified burn reports from Base (L2) and triggers the actual SHIB burn on Ethereum.
/// @dev Hardcoded and permissionless — anyone may call finalizeBurn() once a report is verified.
interface IShibburnL1 {
    function burn(uint256 amount) external;
}

contract BurnVerifierL1 {
    /// @notice Verified ShibburnL1 contract on Ethereum that executes the real burn
    IShibburnL1 public constant SHIBBURN_L1 = IShibburnL1(0x5476E7F4d7691359504875D256B5B8533B8eE173);

    /// @notice Tracks already executed burn reports to prevent duplicates
    mapping(bytes32 => bool) public executedReports;

    /// @notice Emitted whenever a burn is finalized on L1
    event ReportFinalized(bytes32 indexed reportId, uint256 amount, uint256 timestamp);

    /// @notice Finalizes a verified burn report and triggers a real SHIB burn.
    /// @param reportId Unique report ID emitted by BurnReporterL2 on Base
    /// @param amount Amount of SHIB to burn (in wei)
    function finalizeBurn(bytes32 reportId, uint256 amount) external {
        require(!executedReports[reportId], "already executed");
        require(amount > 0, "amount=0");

        executedReports[reportId] = true;
        SHIBBURN_L1.burn(amount);

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

    /// @notice Helper view — checks if a report was already finalized
    function isExecuted(bytes32 reportId) external view returns (bool) {
        return executedReports[reportId];
    }
}