// SPDX-License-Identifier: MIT
pragma solidity ^0.8.1;

import {
    GelatoRelayContractsUtils
} from "../utils/GelatoRelayContractsUtils.sol";
import {
    GELATO_RELAY_ERC2771_V1,
    GELATO_RELAY_CONCURRENT_ERC2771_V1,
    GELATO_RELAY_ERC2771_V2,
    GELATO_RELAY_CONCURRENT_ERC2771_V2,
    GELATO_RELAY_ERC2771_ZKSYNC_V1,
    GELATO_RELAY_CONCURRENT_ERC2771_ZKSYNC_V1,
    GELATO_RELAY_ERC2771_ZKSYNC_V2,
    GELATO_RELAY_CONCURRENT_ERC2771_ZKSYNC_V2,
    GELATO_RELAY_ERC2771_BOTANIX_V2,
    GELATO_RELAY_CONCURRENT_ERC2771_BOTANIX_V2
} from "../constants/GelatoRelay.sol";

abstract contract GelatoRelayERC2771Base is GelatoRelayContractsUtils {
    modifier onlyGelatoRelayERC2771() {
        require(_isGelatoRelayERC2771(msg.sender), "onlyGelatoRelayERC2771");
        _;
    }

    function _isGelatoRelayERC2771(address _forwarder)
        internal
        view
        returns (bool)
    {
        if (
            _forwarder == _gelatoRelayERC2771 ||
            _forwarder == _gelatoRelayConcurrentERC2771
        ) {
            return true;
        }
        return false;
    }
}