// SPDX-License-Identifier: MIT

pragma solidity 0.8.29;

import {ILocalRootProvider, IGigaRootRecipient, IGigaRootProvider} from  "../interfaces/IRootMessengers.sol";
import {IL1BridgeAdapter} from "../interfaces/IL1BridgeAdapter.sol";
import {IL1ScrollMessenger} from "@scroll-tech/contracts/L1/IL1ScrollMessenger.sol";

// no IGigaRootRecipient because we have L1SLOAD!
contract L1ScrollBridgeAdapter is IL1BridgeAdapter, ILocalRootProvider, IGigaRootRecipient {
    modifier onlyGigaBridge() {
        require(msg.sender == gigaBridge, "Not gigaBridge");
        _; // what is that?
    }

    modifier onlyDeployer() {
        require(msg.sender == deployer, "Not the deployer");
        _; // what is that?
    }
    address public l2ScrollBridgeAdapter;
    // most recent warp toad state root from the L2
    uint256 public mostRecentL2Root;
    // the L2 block that the most recent L2 root came from
    uint256 public mostRecentL2RootBlockNumber;

    address public gigaBridge;

    address deployer;

    address public l1ScrollMessenger;

    bool isInitialized = false;
    constructor(address _l1ScrollMessenger ) {
        deployer = msg.sender;
        l1ScrollMessenger = _l1ScrollMessenger;
    }

    function initialize(
        address _l2ScrollBridgeAdapter,
        address _gigaRootBridge
    ) external onlyDeployer() {
        require(isInitialized == false, "cant initialize only once");
        isInitialized = true;
        l2ScrollBridgeAdapter = _l2ScrollBridgeAdapter;
        gigaBridge = _gigaRootBridge;
    }


    function getNewRootFromL2(uint256 _l2Root, uint256 _l2BlockNumber) external {
        require(msg.sender == l1ScrollMessenger,"function not called by l1ScrollMessenger");
        require(l2ScrollBridgeAdapter == IL1ScrollMessenger(l1ScrollMessenger).xDomainMessageSender(),"contract messaging from L2 is not the L2ScrollBridgeAdapter");

        if(mostRecentL2RootBlockNumber <= _l2BlockNumber) {
            emit ReceivedNewL2Root(_l2Root, _l2BlockNumber);
            mostRecentL2Root = _l2Root;
            mostRecentL2RootBlockNumber = _l2BlockNumber;
        }
    }

    function receiveGigaRoot(
        uint256 _newGigaRoot
    ) external payable onlyGigaBridge {
        _bridgeGigaRootToL2(_newGigaRoot, 2000000);
    }

    // just incase the hardcoded gaslimit fails
    function receiveGigaRoot(
        uint256 _newGigaRoot,
        uint256 _gasLimit
    ) external payable {
        _bridgeGigaRootToL2(_newGigaRoot, _gasLimit);
    }

    function _bridgeGigaRootToL2(uint256 _newGigaRoot, uint256 _gasLimit) internal {
        // uint256 _newGigaRoot = IGigaRootProvider(gigaBridge).gigaRoot();
        // sendMessage is able to execute any function by encoding the abi using the encodeWithSignature function
        //IScrollMessenger(l1ScrollMessenger).sendMessage{value: msg.value}(
        IL1ScrollMessenger(l1ScrollMessenger).sendMessage{value: msg.value}( // can this be 0?? or can we pay for some relayer?? check docs!
            l2ScrollBridgeAdapter,
            0,
            abi.encodeWithSignature(
                "receiveGigaRoot(uint256)",
                _newGigaRoot
            ),
            _gasLimit,
            tx.origin // refund goes to the eoa initiating the tx
        );
        
    } 

    function getLocalRootAndBlock() view external returns (uint256, uint256) {
        require(
            mostRecentL2Root > 0,
            "An L2 root hasn't yet been bridged to this contract. refreshRoot must be called."
        );
        require(
            mostRecentL2RootBlockNumber > 0,
            "An L2 root hasn't yet been bridged to this contract. refreshRoot must be called."
        );
        return (mostRecentL2Root, mostRecentL2RootBlockNumber);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.24;

import {IScrollMessenger} from "../libraries/IScrollMessenger.sol";

interface IL1ScrollMessenger is IScrollMessenger {
    /**********
     * Events *
     **********/

    /// @notice Emitted when the maximum number of times each message can be replayed is updated.
    /// @param oldMaxReplayTimes The old maximum number of times each message can be replayed.
    /// @param newMaxReplayTimes The new maximum number of times each message can be replayed.
    event UpdateMaxReplayTimes(uint256 oldMaxReplayTimes, uint256 newMaxReplayTimes);

    /***********
     * Structs *
     ***********/

    struct L2MessageProof {
        // The index of the batch where the message belongs to.
        uint256 batchIndex;
        // Concatenation of merkle proof for withdraw merkle trie.
        bytes merkleProof;
    }

    /*****************************
     * Public Mutating Functions *
     *****************************/

    /// @notice Relay a L2 => L1 message with message proof.
    /// @param from The address of the sender of the message.
    /// @param to The address of the recipient of the message.
    /// @param value The msg.value passed to the message call.
    /// @param nonce The nonce of the message to avoid replay attack.
    /// @param message The content of the message.
    /// @param proof The proof used to verify the correctness of the transaction.
    function relayMessageWithProof(
        address from,
        address to,
        uint256 value,
        uint256 nonce,
        bytes memory message,
        L2MessageProof memory proof
    ) external;

    /// @notice Replay an existing message.
    /// @param from The address of the sender of the message.
    /// @param to The address of the recipient of the message.
    /// @param value The msg.value passed to the message call.
    /// @param messageNonce The nonce for the message to replay.
    /// @param message The content of the message.
    /// @param newGasLimit New gas limit to be used for this message.
    /// @param refundAddress The address of account who will receive the refunded fee.
    function replayMessage(
        address from,
        address to,
        uint256 value,
        uint256 messageNonce,
        bytes memory message,
        uint32 newGasLimit,
        address refundAddress
    ) external payable;

    /// @notice Drop a skipped message.
    /// @param from The address of the sender of the message.
    /// @param to The address of the recipient of the message.
    /// @param value The msg.value passed to the message call.
    /// @param messageNonce The nonce for the message to drop.
    /// @param message The content of the message.
    function dropMessage(
        address from,
        address to,
        uint256 value,
        uint256 messageNonce,
        bytes memory message
    ) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.24;

interface IScrollMessenger {
    /**********
     * Events *
     **********/

    /// @notice Emitted when a cross domain message is sent.
    /// @param sender The address of the sender who initiates the message.
    /// @param target The address of target contract to call.
    /// @param value The amount of value passed to the target contract.
    /// @param messageNonce The nonce of the message.
    /// @param gasLimit The optional gas limit passed to L1 or L2.
    /// @param message The calldata passed to the target contract.
    event SentMessage(
        address indexed sender,
        address indexed target,
        uint256 value,
        uint256 messageNonce,
        uint256 gasLimit,
        bytes message
    );

    /// @notice Emitted when a cross domain message is relayed successfully.
    /// @param messageHash The hash of the message.
    event RelayedMessage(bytes32 indexed messageHash);

    /// @notice Emitted when a cross domain message is failed to relay.
    /// @param messageHash The hash of the message.
    event FailedRelayedMessage(bytes32 indexed messageHash);

    /**********
     * Errors *
     **********/

    /// @dev Thrown when the given address is `address(0)`.
    error ErrorZeroAddress();

    /*************************
     * Public View Functions *
     *************************/

    /// @notice Return the sender of a cross domain message.
    function xDomainMessageSender() external view returns (address);

    /*****************************
     * Public Mutating Functions *
     *****************************/

    /// @notice Send cross chain message from L1 to L2 or L2 to L1.
    /// @param target The address of account who receive the message.
    /// @param value The amount of ether passed when call target contract.
    /// @param message The content of the message.
    /// @param gasLimit Gas limit required to complete the message relay on corresponding chain.
    function sendMessage(
        address target,
        uint256 value,
        bytes calldata message,
        uint256 gasLimit
    ) external payable;

    /// @notice Send cross chain message from L1 to L2 or L2 to L1.
    /// @param target The address of account who receive the message.
    /// @param value The amount of ether passed when call target contract.
    /// @param message The content of the message.
    /// @param gasLimit Gas limit required to complete the message relay on corresponding chain.
    /// @param refundAddress The address of account who will receive the refunded fee.
    function sendMessage(
        address target,
        uint256 value,
        bytes calldata message,
        uint256 gasLimit,
        address refundAddress
    ) external payable;
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.29;

interface IL1BridgeAdapter {

    // gigaRoot is emitted as a bytes32 here because thats how it's recovered on the
    //  L2 side of this rootBridgeAdapter.  Key and index are also used to
    // retrieve this newGigaRoot on L2
    event ReceivedNewL2Root(uint256 indexed newL2Root, uint256 l2Block);

    // /**
    //  * @notice adds an L2 message which can only be consumed publicly on L1
    //  * @param _newGigaRoot - The new gigaRoot to send to L2 as a message
    //  */
    // function receiveGigaRoot(
    //     uint256 _newGigaRoot
    // ) external;

    // function getLocalRootAndBlock() view external returns (uint256, uint256);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.29;

interface IGigaRootProvider {
    function sendGigaRoot(address _gigaRootRecipient) external payable;
    function gigaRoot() external returns(uint256);
}

interface IGigaRootRecipient {
    function receiveGigaRoot(uint256 _gigaRoot) payable external;
    //function receiveGigaRoot(uint256 _gigaRoot, uint256 _gasLimit) payable external;
}


interface ILocalRootProvider {
    function getLocalRootAndBlock() external returns (uint256, uint256);
}

interface ILocalRootRecipient {
    //only gigaBridge does this
    //function updateGigaRoot(address[] memory _localRootProvider) external;
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "evmVersion": "cancun",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

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