pragma solidity =0.6.6;

import 'moonwalkerswap-libraries/contracts/libraries/TransferHelper.sol';

import './interfaces/IMoonwalkerswapV2Migrator.sol';
import './interfaces/V1/IMoonwalkerswapV1Factory.sol';
import './interfaces/V1/IMoonwalkerswapV1Exchange.sol';
import './interfaces/IMoonwalkerswapV2Router01.sol';
import './interfaces/IERC20.sol';

contract MoonwalkerswapV2Migrator is IMoonwalkerswapV2Migrator {
    IMoonwalkerswapV1Factory immutable factoryV1;
    IMoonwalkerswapV2Router01 immutable router;

    constructor(address _factoryV1, address _router) public {
        factoryV1 = IMoonwalkerswapV1Factory(_factoryV1);
        router = IMoonwalkerswapV2Router01(_router);
    }

    receive() external payable {}

    function migrate(address token, uint amountTokenMin, uint amountAVAXMin, address to, uint deadline)
        external
        override
    {
        IMoonwalkerswapV1Exchange exchangeV1 = IMoonwalkerswapV1Exchange(factoryV1.getExchange(token));
        uint liquidityV1 = exchangeV1.balanceOf(msg.sender);
        require(exchangeV1.transferFrom(msg.sender, address(this), liquidityV1), 'TRANSFER_FROM_FAILED');
        (uint amountAVAXV1, uint amountTokenV1) = exchangeV1.removeLiquidity(liquidityV1, 1, 1, uint(-1));
        TransferHelper.safeApprove(token, address(router), amountTokenV1);
        
    }
}