pragma solidity ^0.7.0;
pragma experimental ABIEncoderV2;

/**
 * @title SushiSwap Double Incentive.
 * @dev Decentralized Exchange.
 */

import {TokenInterface} from "../../common/interfaces.sol";
import {Helpers} from "./helpers.sol";
import {Events} from "./events.sol";

abstract contract SushipswapIncentiveResolver is Helpers, Events {
    /**
     * @dev deposit LP token to masterChef
     * @notice deposit LP token to masterChef
     * @param token1 token1 of LP token
     * @param token2 token2 of LP token
     * @param amount amount of LP token
     * @param getId ID to retrieve amount
     * @param setId ID stores Pool ID
     */
    function deposit(
        address token1,
        address token2,
        uint256 amount,
        uint256 getId,
        uint256 setId,
        Metadata memory data
    )
        external
        payable
        returns (string memory _eventName, bytes memory _eventParam)
    {
        token1 = changeEthAddrToWethAddr(token1);
        token2 = changeEthAddrToWethAddr(token2);
        amount = getUint(getId, amount);
        if(data.poolId == uint256(-1)|| data.version < 0 || data.lpToken == address(0)){
            data = _getPoolId(
                token1,
                token2
            );
        }
        setUint(setId, data.poolId);
        require(data.poolId != uint256(-1), "pool-does-not-exist");
        TokenInterface lpToken = TokenInterface(data.lpToken);
        lpToken.approve(address(masterChef), amount);
        _deposit(data, amount);
        _eventName = "LogDeposit(uint256,uint256,uint256)";
        _eventParam = abi.encode(data.poolId, data.version, amount);
    }

    /**
     * @dev withdraw LP token from masterChef
     * @notice withdraw LP token from masterChef
     * @param token1 token1 of LP token
     * @param token2 token2 of LP token
     * @param amount amount of LP token
     * @param getId ID to retrieve amount
     * @param setId ID stores Pool ID
     */
    function withdraw(
        address token1,
        address token2,
        uint256 amount,
        uint256 getId,
        uint256 setId,
        Metadata memory data
    )
        external
        payable
        returns (string memory _eventName, bytes memory _eventParam)
    {
        token1 = changeEthAddrToWethAddr(token1);
        token2 = changeEthAddrToWethAddr(token2);
        amount = getUint(getId, amount);
        if(data.poolId == uint256(-1)|| data.version < 0){
            data = _getPoolId(
                token1,
                token2
            );
        }
        setUint(setId, data.poolId);
        require(data.poolId != uint256(-1), "pool-does-not-exist");
        _withdraw(data, amount);
        _eventName = "LogWithdraw(uint256,uint256,uint256)";
        _eventParam = abi.encode(data.poolId, data.version, amount);
    }

    /**
     * @dev harvest from masterChef
     * @notice harvest from masterChef
     * @param token1 token1 deposited of LP token
     * @param token2 token2 deposited LP token
     * @param setId ID stores Pool ID
     */
    function harvest(
        address token1,
        address token2,
        uint256 setId,
        Metadata memory data
    )
        external
        payable
        returns (string memory _eventName, bytes memory _eventParam)
    {
        token1 = changeEthAddrToWethAddr(token1);
        token2 = changeEthAddrToWethAddr(token2);
        if(data.poolId == uint256(-1)|| data.version < 0 ){
            data = _getPoolId(
                token1,
                token2
            );
        }
        setUint(setId, data.poolId);
        require(data.poolId != uint256(-1), "pool-does-not-exist");
        (, uint256 rewardsAmount) = _getUserInfo(data);
        if (data.version == 2) _harvest(data);
        else _withdraw(data, 0);
        _eventName = "LogHarvest(uint256,uint256,uint256)";
        _eventParam = abi.encode(data.poolId, data.version, rewardsAmount);
    }

    /**
     * @dev withdraw LP token and harvest from masterChef
     * @notice withdraw LP token and harvest from masterChef
     * @param token1 token1 of LP token
     * @param token2 token2 of LP token
     * @param amount amount of LP token
     * @param getId ID to retrieve amount
     * @param setId ID stores Pool ID
     */
    function withdrawAndHarvest(
        address token1,
        address token2,
        uint256 amount,
        uint256 getId,
        uint256 setId,
        Metadata memory data
    )
        external
        payable
        returns (string memory _eventName, bytes memory _eventParam)
    {
        token1 = changeEthAddrToWethAddr(token1);
        token2 = changeEthAddrToWethAddr(token2);
        amount = getUint(getId, amount);
        if(data.poolId == uint256(-1)|| data.version < 0){
            data = _getPoolId(
                token1,
                token2
            );
        }
        setUint(setId, data.poolId);
        require(data.poolId != uint256(-1), "pool-does-not-exist");
        (, uint256 rewardsAmount) = _getUserInfo(data);
        _withdrawAndHarvest(data, amount);
        _eventName = "LogWithdrawAndHarvest(uint256,uint256,uint256,uint256)";
        _eventParam = abi.encode(data.poolId, data.version, amount, rewardsAmount);
    }

    /**
     * @dev emergency withdraw from masterChef
     * @notice emergency withdraw from masterChef
     * @param token1 token1 deposited of LP token
     * @param token2 token2 deposited LP token
     * @param setId ID stores Pool ID
     */
    function emergencyWithdraw(
        address token1,
        address token2,
        uint256 setId,
        Metadata memory data
    )
        external
        payable
        returns (string memory _eventName, bytes memory _eventParam)
    {
        token1 = changeEthAddrToWethAddr(token1);
        token2 = changeEthAddrToWethAddr(token2);
        if(data.poolId == uint256(-1)|| data.version < 0 ){
            data = _getPoolId(
                token1,
                token2
            );
        }
        setUint(setId, data.poolId);
        require(data.poolId != uint256(-1), "pool-does-not-exist");
        (uint256 lpAmount, uint256 rewardsAmount) = _getUserInfo(data);
        _emergencyWithdraw(data);
        _eventName = "LogEmergencyWithdraw(uint256,uint256,uint256,uint256)";
        _eventParam = abi.encode(data.poolId, data.version, lpAmount, rewardsAmount);
    }
}

contract ConnectV2SushiswapIncentive is SushipswapIncentiveResolver {
    string public constant name = "SushipswapIncentive-v1.1";
}