// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import {Admin} from "../../contracts/Admin.sol";

import {FastBridge} from "../../contracts/FastBridge.sol";
import {IFastBridge} from "../../contracts/interfaces/IFastBridge.sol";

contract FastBridgeMock is IFastBridge, Admin {
    // @dev the block the contract was deployed at
    uint256 public immutable deployBlock;

    constructor(address _owner) Admin(_owner) {
        deployBlock = block.number;
    }

    /// @dev to prevent replays
    uint256 public nonce;

    /// @notice We include an empty "test" function so that this contract does not appear in the coverage report.
    function testFastBridgeMock() external {}

    function getBridgeTransaction(bytes memory request) public pure returns (BridgeTransaction memory) {
        return abi.decode(request, (BridgeTransaction));
    }

    // used for testing in go.
    // see: https://ethereum.stackexchange.com/questions/21155/how-to-expose-enum-in-solidity-contract
    // make sure to update fastbridge/status.go if this changes
    // or underliyng enum changes.
    //
    // TODO: a foundry test should be added to ensure this is always in sync.
    function getEnumKeyByValue(FastBridge.BridgeStatus keyValue) public pure returns (string memory) {
        if (FastBridge.BridgeStatus.NULL == keyValue) return "NULL";
        if (FastBridge.BridgeStatus.REQUESTED == keyValue) return "REQUESTED";
        if (FastBridge.BridgeStatus.RELAYER_PROVED == keyValue) return "RELAYER_PROVED";
        if (FastBridge.BridgeStatus.RELAYER_CLAIMED == keyValue) return "RELAYER_CLAIMED";
        if (FastBridge.BridgeStatus.REFUNDED == keyValue) return "REFUNDED";
        return "";
    }

    function mockBridgeRequest(bytes32 transactionId, address sender, BridgeParams memory params) external {
        sender;
        uint256 originFeeAmount = (params.originAmount * protocolFeeRate) / FEE_BPS;
        params.originAmount -= originFeeAmount;

        bytes memory request = abi.encode(
            BridgeTransaction({
                originChainId: uint32(block.chainid),
                destChainId: params.dstChainId,
                originSender: params.sender,
                destRecipient: params.to,
                originToken: params.originToken,
                destToken: params.destToken,
                originAmount: params.originAmount, // includes relayer fee
                destAmount: params.destAmount,
                originFeeAmount: originFeeAmount,
                sendChainGas: params.sendChainGas,
                deadline: params.deadline,
                nonce: nonce++ // increment nonce on every bridge
            })
        );

        emit BridgeRequested(
            transactionId,
            params.sender,
            request,
            params.dstChainId,
            params.originToken,
            params.destToken,
            params.originAmount,
            params.destAmount,
            params.sendChainGas
        );
    }

    function mockBridgeRequestRaw(bytes32 transactionId, address sender, bytes memory request) external {
        sender;
        BridgeTransaction memory transaction = getBridgeTransaction(request);
        emit BridgeRequested(
            transactionId,
            transaction.originSender,
            request,
            transaction.destChainId,
            transaction.originToken,
            transaction.destToken,
            transaction.originAmount,
            transaction.destAmount,
            transaction.sendChainGas
        );
    }

    function mockBridgeRelayer(
        bytes32 transactionId,
        address relayer,
        address to,
        uint32 originChainId,
        address originToken,
        address destToken,
        uint256 originAmount,
        uint256 destAmount,
        uint256 chainGasAmount
    )
        external
    {
        emit BridgeRelayed(
            transactionId, relayer, to, originChainId, originToken, destToken, originAmount, destAmount, chainGasAmount
        );
    }

    function bridge(BridgeParams memory) external payable {
        revert("not implemented");
    }

    function relay(bytes memory) external payable {
        revert("not implemented");
    }

    function prove(bytes memory, bytes32) external pure {
        revert("not implemented");
    }

    function canClaim(bytes32, address) external pure returns (bool) {
        revert("not implemented");
    }

    function claim(bytes memory, address) external pure {
        revert("not implemented");
    }

    function dispute(bytes32) external pure {
        revert("not implemented");
    }

    function refund(bytes memory) external pure {
        revert("not implemented");
    }
}