// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
import '@openzeppelin/contracts/access/Ownable.sol';
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "./libs/IUniRouter02.sol";
import "./libs/IWETH.sol";
interface IToken {
     /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);
    /**
     * @dev Returns the token decimals.
     */
    function decimals() external view returns (uint8);
    /**
     * @dev Returns the token symbol.
     */
    function symbol() external view returns (string memory);
    /**
     * @dev Returns the token name.
     */
    function name() external view returns (string memory);
}
contract BrewlabsLockup is Ownable, ReentrancyGuard {
    using SafeERC20 for IERC20;
    // Whether it is initialized
    bool public isInitialized;
    uint256 public duration = 365; // 365 days
    // Whether a limit is set for users
    bool public hasUserLimit;
    // The pool limit (0 if none)
    uint256 public poolLimitPerUser;
    // The block number when staking starts.
    uint256 public startBlock;
    // The block number when staking ends.
    uint256 public bonusEndBlock;
    // swap router and path, slipPage
    uint256 public slippageFactor = 800; // 20% default slippage tolerance
    uint256 public constant slippageFactorUL = 995;
    address public uniRouterAddress;
    address[] public reflectionToStakedPath;
    address[] public earnedToStakedPath;
    address public walletA;
    address public buyBackWallet = 0xE1f1dd010BBC2860F81c8F90Ea4E38dB949BB16F;
    uint256 public performanceFee = 0.00089 ether;
    // The precision factor
    uint256 public PRECISION_FACTOR;
    uint256 public PRECISION_FACTOR_REFLECTION;
    // The staked token
    IERC20 public stakingToken;
    // The earned token
    IERC20 public earnedToken;
    // The dividend token of staking token
    address public dividendToken;
    // Accrued token per share
    uint256 public accDividendPerShare;
    uint256 public totalStaked;
    uint256 private totalEarned;
    uint256 private totalReflections;
    uint256 private reflections;
    uint256 private paidRewards;
    uint256 private shouldTotalPaid;
    struct Lockup {
        uint8 stakeType;
        uint256 duration;
        uint256 depositFee;
        uint256 withdrawFee;
        uint256 rate;
        uint256 accTokenPerShare;
        uint256 lastRewardBlock;
        uint256 totalStaked;
        uint256 totalStakedLimit;
    }
    struct UserInfo {
        uint256 amount; // How many staked tokens the user has provided
        uint256 locked;
        uint256 available;
    }
    struct Stake {
        uint8   stakeType;
        uint256 amount;     // amount to stake
        uint256 duration;   // the lockup duration of the stake
        uint256 end;        // when does the staking period end
        uint256 rewardDebt; // Reward debt
        uint256 reflectionDebt; // Reflection debt
    }
    uint256 constant MAX_STAKES = 256;
    Lockup[] public lockups;
    mapping(address => Stake[]) public userStakes;
    mapping(address => UserInfo) public userStaked;
    event Deposit(address indexed user, uint256 stakeType, uint256 amount);
    event Withdraw(address indexed user, uint256 stakeType, uint256 amount);
    event EmergencyWithdraw(address indexed user, uint256 amount);
    event AdminTokenRecovered(address tokenRecovered, uint256 amount);
    event NewStartAndEndBlocks(uint256 startBlock, uint256 endBlock);
    event LockupUpdated(uint8 _type, uint256 _duration, uint256 _fee0, uint256 _fee1, uint256 _rate);
    event RewardsStop(uint256 blockNumber);
    event EndBlockUpdated(uint256 blockNumber);
    event UpdatePoolLimit(uint256 poolLimitPerUser, bool hasLimit);
    event ServiceInfoUpadted(address _addr, uint256 _fee);
    event DurationUpdated(uint256 _duration);
    event SetSettings(
        uint256 _slippageFactor,
        address _uniRouter,
        address[] _path0,
        address[] _path1,
        address _walletA
    );
    constructor() {}
    /*
     * @notice Initialize the contract
     * @param _stakingToken: staked token address
     * @param _earnedToken: earned token address
     * @param _dividendToken: reflection token address
     * @param _uniRouter: uniswap router address for swap tokens
     * @param _earnedToStakedPath: swap path to compound (earned -> staking path)
     * @param _reflectionToStakedPath: swap path to compound (reflection -> staking path)
     */
    function initialize(
        IERC20 _stakingToken,
        IERC20 _earnedToken,
        address _dividendToken,
        address _uniRouter,
        address[] memory _earnedToStakedPath,
        address[] memory _reflectionToStakedPath
    ) external onlyOwner {
        require(!isInitialized, "Already initialized");
        // Make this contract initialized
        isInitialized = true;
        stakingToken = _stakingToken;
        earnedToken = _earnedToken;
        dividendToken = _dividendToken;
        walletA = msg.sender;
        uint256 decimalsRewardToken = uint256(IToken(address(earnedToken)).decimals());
        require(decimalsRewardToken < 30, "Must be inferior to 30");
        PRECISION_FACTOR = uint256(10**(40 - decimalsRewardToken));
        uint256 decimalsdividendToken = 18;
        if(address(dividendToken) != address(0x0)) {
            decimalsdividendToken = uint256(IToken(address(dividendToken)).decimals());
            require(decimalsdividendToken < 30, "Must be inferior to 30");
        }
        PRECISION_FACTOR_REFLECTION = uint256(10**(40 - decimalsRewardToken));
        uniRouterAddress = _uniRouter;
        earnedToStakedPath = _earnedToStakedPath;
        reflectionToStakedPath = _reflectionToStakedPath;
    }
    /*
     * @notice Deposit staked tokens and collect reward tokens (if any)
     * @param _amount: amount to withdraw (in earnedToken)
     */
    function deposit(uint256 _amount, uint8 _stakeType) external payable nonReentrant {
        require(startBlock > 0 && startBlock < block.number, "Staking hasn't started yet");
        require(_amount > 0, "Amount should be greator than 0");
        require(_stakeType < lockups.length, "Invalid stake type");
        _transferPerformanceFee();
        _updatePool(_stakeType);
        UserInfo storage user = userStaked[msg.sender];
        Stake[] storage stakes = userStakes[msg.sender];
        Lockup storage lockup = lockups[_stakeType];
        if(lockup.totalStakedLimit > 0) {
            require(lockup.totalStaked < lockup.totalStakedLimit, "Total staked limit exceeded");
            if(lockup.totalStaked + _amount > lockup.totalStakedLimit) {
                _amount = lockup.totalStakedLimit - lockup.totalStaked;
            }
        }
        uint256 pending = 0;
        uint256 pendingReflection = 0;
        for(uint256 j = 0; j < stakes.length; j++) {
            Stake storage stake = stakes[j];
            if(stake.stakeType != _stakeType) continue;
            if(stake.amount == 0) continue;
            pendingReflection = pendingReflection + (
                stake.amount * accDividendPerShare / PRECISION_FACTOR_REFLECTION - stake.reflectionDebt
            );
            uint256 _pending = stake.amount * lockup.accTokenPerShare / PRECISION_FACTOR - stake.rewardDebt;
            pending = pending + _pending;
            stake.rewardDebt = stake.amount * lockup.accTokenPerShare / PRECISION_FACTOR;
            stake.reflectionDebt = stake.amount * accDividendPerShare / PRECISION_FACTOR_REFLECTION;
        }
        if (pending > 0) {
            require(availableRewardTokens() >= pending, "Insufficient reward tokens");
            earnedToken.safeTransfer(address(msg.sender), pending);
            _updateEarned(pending);
            paidRewards = paidRewards + pending;
        }
        pendingReflection = estimateDividendAmount(pendingReflection);
        if (pendingReflection > 0) {
            _transferToken(dividendToken, msg.sender, pendingReflection);
            totalReflections = totalReflections - pendingReflection;
        }
        uint256 beforeAmount = stakingToken.balanceOf(address(this));
        stakingToken.safeTransferFrom(address(msg.sender), address(this), _amount);
        uint256 afterAmount = stakingToken.balanceOf(address(this));        
        uint256 realAmount = afterAmount - beforeAmount;
        if (hasUserLimit) {
            require(
                realAmount + user.amount <= poolLimitPerUser,
                "User amount above limit"
            );
        }
        if (lockup.depositFee > 0) {
            uint256 fee = realAmount * lockup.depositFee / 10000;
            if (fee > 0) {
                stakingToken.safeTransfer(walletA, fee);
                realAmount = realAmount - fee;
            }
        }
        
        _addStake(_stakeType, msg.sender, lockup.duration, realAmount);
        user.amount = user.amount + realAmount;
        lockup.totalStaked = lockup.totalStaked + realAmount;
        totalStaked = totalStaked + realAmount;
        emit Deposit(msg.sender, _stakeType, realAmount);
    }
    function _addStake(uint8 _stakeType, address _account, uint256 _duration, uint256 _amount) internal {
        Stake[] storage stakes = userStakes[_account];
        uint256 end = block.timestamp + _duration * 1 days;
        uint256 i = stakes.length;
        require(i < MAX_STAKES, "Max stakes");
        stakes.push(); // grow the array
        // find the spot where we can insert the current stake
        // this should make an increasing list sorted by end
        while (i != 0 && stakes[i - 1].end > end) {
            // shift it back one
            stakes[i] = stakes[i - 1];
            i -= 1;
        }
        
        Lockup storage lockup = lockups[_stakeType];
        // insert the stake
        Stake storage newStake = stakes[i];
        newStake.stakeType = _stakeType;
        newStake.duration = _duration;
        newStake.end = end;
        newStake.amount = _amount;
        newStake.rewardDebt = newStake.amount * lockup.accTokenPerShare / PRECISION_FACTOR;
        newStake.reflectionDebt = newStake.amount * accDividendPerShare / PRECISION_FACTOR_REFLECTION;
    }
    /*
     * @notice Withdraw staked tokens and collect reward tokens
     * @param _amount: amount to withdraw (in earnedToken)
     */
    function withdraw(uint256 _amount, uint8 _stakeType) external payable nonReentrant {
        require(_amount > 0, "Amount should be greator than 0");
        require(_stakeType < lockups.length, "Invalid stake type");
        _transferPerformanceFee();
        _updatePool(_stakeType);
        UserInfo storage user = userStaked[msg.sender];
        Stake[] storage stakes = userStakes[msg.sender];
        Lockup storage lockup = lockups[_stakeType];
        
        uint256 pending = 0;
        uint256 pendingReflection = 0;
        uint256 remained = _amount;
        for(uint256 j = 0; j < stakes.length; j++) {
            Stake storage stake = stakes[j];
            if(stake.stakeType != _stakeType) continue;
            if(stake.amount == 0) continue;
            if(remained == 0) break;
            uint256 _pending = stake.amount * lockup.accTokenPerShare / PRECISION_FACTOR - stake.rewardDebt;
            pendingReflection = pendingReflection + (
                stake.amount * accDividendPerShare / PRECISION_FACTOR_REFLECTION - stake.reflectionDebt
            );
            pending = pending + _pending;
            if(stake.end < block.timestamp || bonusEndBlock < block.number) {
                if(stake.amount > remained) {
                    stake.amount = stake.amount - remained;
                    remained = 0;
                } else {
                    remained = remained - stake.amount;
                    stake.amount = 0;
                }
            }
            stake.rewardDebt = stake.amount * lockup.accTokenPerShare / PRECISION_FACTOR;
            stake.reflectionDebt = stake.amount * accDividendPerShare / PRECISION_FACTOR_REFLECTION;
        }
        if (pending > 0) {
            require(availableRewardTokens() >= pending, "Insufficient reward tokens");
            earnedToken.safeTransfer(address(msg.sender), pending);
            _updateEarned(pending);
            paidRewards = paidRewards + pending;
        }
        if (pendingReflection > 0) {
            pendingReflection = estimateDividendAmount(pendingReflection);
            _transferToken(dividendToken, msg.sender, pendingReflection);
            totalReflections = totalReflections - pendingReflection;
        }
        uint256 realAmount = _amount - remained;
        user.amount = user.amount - realAmount;
        lockup.totalStaked = lockup.totalStaked - realAmount;
        totalStaked = totalStaked - realAmount;
        if(realAmount > 0) {
            if (lockup.withdrawFee > 0) {
                uint256 fee = realAmount * lockup.withdrawFee / 10000;
                stakingToken.safeTransfer(walletA, fee);
                realAmount = realAmount - fee;
            }
            stakingToken.safeTransfer(address(msg.sender), realAmount);
        }
        emit Withdraw(msg.sender, _stakeType, realAmount);
    }
    function claimReward(uint8 _stakeType) external payable nonReentrant {
        if(_stakeType >= lockups.length) return;
        if(startBlock == 0) return;
        _transferPerformanceFee();
        _updatePool(_stakeType);
        Stake[] storage stakes = userStakes[msg.sender];
        Lockup storage lockup = lockups[_stakeType];
        uint256 pending = 0;
        for(uint256 j = 0; j < stakes.length; j++) {
            Stake storage stake = stakes[j];
            if(stake.stakeType != _stakeType) continue;
            if(stake.amount == 0) continue;
            uint256 _pending = stake.amount * lockup.accTokenPerShare / PRECISION_FACTOR - stake.rewardDebt;
            pending = pending + _pending;
            stake.rewardDebt = stake.amount * lockup.accTokenPerShare / PRECISION_FACTOR;
        }
        if (pending > 0) {
            require(availableRewardTokens() >= pending, "Insufficient reward tokens");
            earnedToken.safeTransfer(address(msg.sender), pending);
            _updateEarned(pending);
            paidRewards = paidRewards + pending;
        }
    }
    function claimDividend(uint8 _stakeType) external payable nonReentrant {
        if(_stakeType >= lockups.length) return;
        if(startBlock == 0) return;
        _transferPerformanceFee();
        _updatePool(_stakeType);
        Stake[] storage stakes = userStakes[msg.sender];
        uint256 pendingReflection = 0;
        for(uint256 j = 0; j < stakes.length; j++) {
            Stake storage stake = stakes[j];
            if(stake.stakeType != _stakeType) continue;
            if(stake.amount == 0) continue;
            pendingReflection = pendingReflection + (
                stake.amount * accDividendPerShare / PRECISION_FACTOR_REFLECTION - stake.reflectionDebt
            );
            stake.reflectionDebt = stake.amount * accDividendPerShare / PRECISION_FACTOR_REFLECTION;
        }
        pendingReflection = estimateDividendAmount(pendingReflection);
        if (pendingReflection > 0) {
            _transferToken(dividendToken, msg.sender, pendingReflection);
            totalReflections = totalReflections - pendingReflection;
        }
    }
    function compoundReward(uint8 _stakeType) external payable nonReentrant {
        if(_stakeType >= lockups.length) return;
        if(startBlock == 0) return;
        _transferPerformanceFee();
        _updatePool(_stakeType);
        UserInfo storage user = userStaked[msg.sender];
        Stake[] storage stakes = userStakes[msg.sender];
        Lockup storage lockup = lockups[_stakeType];
        uint256 pending = 0;
        uint256 compounded = 0;
        for(uint256 j = 0; j < stakes.length; j++) {
            Stake storage stake = stakes[j];
            if(stake.stakeType != _stakeType) continue;
            if(stake.amount == 0) continue;
            uint256 _pending = stake.amount * lockup.accTokenPerShare / PRECISION_FACTOR - stake.rewardDebt;
            pending = pending + _pending;
            if(address(stakingToken) != address(earnedToken) && _pending > 0) {
                uint256 _beforeAmount = stakingToken.balanceOf(address(this));
                _safeSwap(_pending, earnedToStakedPath, address(this));
                uint256 _afterAmount = stakingToken.balanceOf(address(this));
                _pending = _afterAmount - _beforeAmount;
            }
            compounded = compounded + _pending;
            stake.amount = stake.amount + _pending;
            stake.rewardDebt = stake.amount * lockup.accTokenPerShare / PRECISION_FACTOR;
            stake.reflectionDebt = stake.reflectionDebt + _pending * accDividendPerShare / PRECISION_FACTOR_REFLECTION;
        }
        if (pending > 0) {
            require(availableRewardTokens() >= pending, "Insufficient reward tokens");
            _updateEarned(pending);
            paidRewards = paidRewards + pending;
            user.amount = user.amount + compounded;
            lockup.totalStaked = lockup.totalStaked + compounded;
            totalStaked = totalStaked + compounded;
            emit Deposit(msg.sender, _stakeType, compounded);
        }
    }
    function compoundDividend(uint8 _stakeType) external payable nonReentrant {
        if(_stakeType >= lockups.length) return;
        if(startBlock == 0) return;
        _transferPerformanceFee();
        _updatePool(_stakeType);
        UserInfo storage user = userStaked[msg.sender];
        Stake[] storage stakes = userStakes[msg.sender];
        Lockup storage lockup = lockups[_stakeType];
        uint256 compounded = 0;
        for(uint256 j = 0; j < stakes.length; j++) {
            Stake storage stake = stakes[j];
            if(stake.stakeType != _stakeType) continue;
            if(stake.amount == 0) continue;
            uint256 _pending = stake.amount * accDividendPerShare / PRECISION_FACTOR_REFLECTION - stake.reflectionDebt;
            _pending = estimateDividendAmount(_pending);
            totalReflections = totalReflections - _pending;
            if(address(stakingToken) != address(dividendToken) && _pending > 0) {
                if(address(dividendToken) == address(0x0)) {
                    address wethAddress = IUniRouter02(uniRouterAddress).WETH();
                    IWETH(wethAddress).deposit{ value: _pending }();
                }
                uint256 _beforeAmount = stakingToken.balanceOf(address(this));
                _safeSwap(_pending, reflectionToStakedPath, address(this));
                uint256 _afterAmount = stakingToken.balanceOf(address(this));
                _pending = _afterAmount - _beforeAmount;
            }
            
            compounded = compounded + _pending;
            stake.amount = stake.amount + _pending;
            stake.rewardDebt = stake.rewardDebt + _pending * lockup.accTokenPerShare / PRECISION_FACTOR;
            stake.reflectionDebt = stake.amount * accDividendPerShare / PRECISION_FACTOR_REFLECTION;
        }
        if (compounded > 0) {
            user.amount = user.amount + compounded;
            lockup.totalStaked = lockup.totalStaked + compounded;
            totalStaked = totalStaked + compounded;
            emit Deposit(msg.sender, _stakeType, compounded);
        }
    }
    function _transferPerformanceFee() internal {
        require(msg.value >= performanceFee, 'should pay small gas to compound or harvest');
        payable(buyBackWallet).transfer(performanceFee);
        if(msg.value > performanceFee) {
            payable(msg.sender).transfer(msg.value - performanceFee);
        }
    }
    /*
     * @notice Withdraw staked tokens without caring about rewards
     * @dev Needs to be for emergency.
     */
    function emergencyWithdraw(uint8 _stakeType) external nonReentrant {
        if(_stakeType >= lockups.length) return;
        UserInfo storage user = userStaked[msg.sender];
        Stake[] storage stakes = userStakes[msg.sender];
        Lockup storage lockup = lockups[_stakeType];
        uint256 amountToTransfer = 0;
        for(uint256 j = 0; j < stakes.length; j++) {
            Stake storage stake = stakes[j];
            if(stake.stakeType != _stakeType) continue;
            if(stake.amount == 0) continue;
            amountToTransfer = amountToTransfer + stake.amount;
            stake.amount = 0;
            stake.rewardDebt = 0;
            stake.reflectionDebt = 0;
        }
        if (amountToTransfer > 0) {
            stakingToken.safeTransfer(address(msg.sender), amountToTransfer);
            user.amount = user.amount - amountToTransfer;
            lockup.totalStaked = lockup.totalStaked - amountToTransfer;
            totalStaked = totalStaked - amountToTransfer;
        }
        emit EmergencyWithdraw(msg.sender, amountToTransfer);
    }
    function rewardPerBlock(uint8 _stakeType) external view returns (uint256) {
        if(_stakeType >= lockups.length) return 0;
        return lockups[_stakeType].rate;
    }
    /**
     * @notice Available amount of reward token
     */
    function availableRewardTokens() public view returns (uint256) {
        if(address(earnedToken) == address(dividendToken)) return totalEarned;
        uint256 _amount = earnedToken.balanceOf(address(this));
        if (address(earnedToken) == address(stakingToken)) {
            if (_amount < totalStaked) return 0;
            return _amount - totalStaked;
        }
        return _amount;
    }
    /**
     * @notice Available amount of reflection token
     */
    function availableDividendTokens() public view returns (uint256) {
        if(address(dividendToken) == address(0x0)) {
            return address(this).balance;
        }
        uint256 _amount = IERC20(dividendToken).balanceOf(address(this));
        
        if(address(dividendToken) == address(earnedToken)) {
            if(_amount < totalEarned) return 0;
            _amount = _amount - totalEarned;
        }
        if(address(dividendToken) == address(stakingToken)) {
            if(_amount < totalStaked) return 0;
            _amount = _amount - totalStaked;
        }
        return _amount;
    }
    function insufficientRewards() external view returns (uint256) {
        uint256 adjustedShouldTotalPaid = shouldTotalPaid;
        uint256 remainRewards = availableRewardTokens() + paidRewards;
        for(uint i = 0; i < lockups.length; i++) {
            if(startBlock == 0) {
                adjustedShouldTotalPaid = adjustedShouldTotalPaid + lockups[i].rate * duration * 6426;
            } else {
                uint256 remainBlocks = _getMultiplier(lockups[i].lastRewardBlock, bonusEndBlock);
                adjustedShouldTotalPaid = adjustedShouldTotalPaid + lockups[i].rate * remainBlocks;
            }
        }
        if(remainRewards >= adjustedShouldTotalPaid) return 0;
        return adjustedShouldTotalPaid - remainRewards;
    }
    function userInfo(uint8 _stakeType, address _account) external view returns (uint256 amount, uint256 available, uint256 locked) {
        Stake[] memory stakes = userStakes[_account];
        
        for(uint256 i = 0; i < stakes.length; i++) {
            Stake memory stake = stakes[i];
            if(stake.stakeType != _stakeType) continue;
            if(stake.amount == 0) continue;
            
            amount = amount + stake.amount;
            if(block.timestamp > stake.end || bonusEndBlock < block.number) {
                available = available + stake.amount;
            } else {
                locked = locked + stake.amount;
            }
        }
    }
    /*
     * @notice View function to see pending reward on frontend.
     * @param _user: user address
     * @return Pending reward for a given user
     */
    function pendingReward(address _account, uint8 _stakeType) external view returns (uint256) {
        if(_stakeType >= lockups.length || startBlock == 0) return 0;
        Stake[] memory stakes = userStakes[_account];
        Lockup memory lockup = lockups[_stakeType];
        if(lockup.totalStaked == 0) return 0;
        
        uint256 adjustedTokenPerShare = lockup.accTokenPerShare;
        if (block.number > lockup.lastRewardBlock && lockup.totalStaked != 0 && lockup.lastRewardBlock > 0) {
            uint256 multiplier = _getMultiplier(lockup.lastRewardBlock, block.number);
            uint256 reward = multiplier * lockup.rate;
            adjustedTokenPerShare = lockup.accTokenPerShare + reward * PRECISION_FACTOR / lockup.totalStaked;
        }
        uint256 pending = 0;
        for(uint256 i = 0; i < stakes.length; i++) {
            Stake memory stake = stakes[i];
            if(stake.stakeType != _stakeType) continue;
            if(stake.amount == 0) continue;
            pending = pending + (
                    stake.amount * adjustedTokenPerShare / PRECISION_FACTOR - stake.rewardDebt
                );
        }
        return pending;
    }
    function pendingDividends(address _account, uint8 _stakeType) external view returns (uint256) {
        if(_stakeType >= lockups.length) return 0;
        if(startBlock == 0 || totalStaked == 0) return 0;
        Stake[] memory stakes = userStakes[_account];
        
        uint256 reflectionAmount = availableDividendTokens();
        if(reflectionAmount < totalReflections) {
            reflectionAmount = totalReflections;
        }
        uint256 sTokenBal = totalStaked;
        uint256 eTokenBal = availableRewardTokens();
        if(address(stakingToken) == address(earnedToken)) {
            sTokenBal = sTokenBal + eTokenBal;
        }
        uint256 adjustedReflectionPerShare = accDividendPerShare + ( 
            (reflectionAmount - totalReflections) * PRECISION_FACTOR_REFLECTION / sTokenBal
        );
        
        uint256 pendingReflection = 0;
        for(uint256 i = 0; i < stakes.length; i++) {
            Stake memory stake = stakes[i];
            if(stake.stakeType != _stakeType) continue;
            if(stake.amount == 0) continue;
            pendingReflection = pendingReflection + (
                stake.amount * adjustedReflectionPerShare / PRECISION_FACTOR_REFLECTION - stake.reflectionDebt
            );
        }
        return pendingReflection;
    }
    /************************
    ** Admin Methods
    *************************/
    function harvest() external onlyOwner {
        _updatePool(0);
        reflections = estimateDividendAmount(reflections);
        if(reflections > 0) {
            _transferToken(dividendToken, walletA, reflections);
            totalReflections = totalReflections - reflections;
            reflections = 0;
        }
    }
    /*
     * @notice Deposit reward token
     * @dev Only call by owner. Needs to be for deposit of reward token when reflection token is same with reward token.
     */
    function depositRewards(uint _amount) external onlyOwner nonReentrant {
        require(_amount > 0, "invalid amount");
        uint256 beforeAmt = earnedToken.balanceOf(address(this));
        earnedToken.safeTransferFrom(msg.sender, address(this), _amount);
        uint256 afterAmt = earnedToken.balanceOf(address(this));
        totalEarned = totalEarned + afterAmt - beforeAmt;
    }
    function increaseEmissionRate(uint8 _stakeType, uint256 _amount) external onlyOwner {
        require(startBlock > 0, "pool is not started");
        require(bonusEndBlock > block.number, "pool was already finished");
        require(_amount > 0, "invalid amount");
        
        _updatePool(_stakeType);
        uint256 beforeAmt = earnedToken.balanceOf(address(this));
        earnedToken.safeTransferFrom(msg.sender, address(this), _amount);
        uint256 afterAmt = earnedToken.balanceOf(address(this));
        totalEarned = totalEarned + afterAmt - beforeAmt;
        uint256 remainRewards = availableRewardTokens() + paidRewards;
        uint256 adjustedShouldTotalPaid = shouldTotalPaid;
        for(uint i = 0; i < lockups.length; i++) {
            if(i == _stakeType) continue;
            if(startBlock == 0) {
                adjustedShouldTotalPaid = adjustedShouldTotalPaid + lockups[i].rate * duration * 6426;
            } else {
                uint256 remainBlocks = _getMultiplier(lockups[i].lastRewardBlock, bonusEndBlock);
                adjustedShouldTotalPaid = adjustedShouldTotalPaid + lockups[i].rate * remainBlocks;
            }
        }
        if(remainRewards > shouldTotalPaid) {
            remainRewards = remainRewards - adjustedShouldTotalPaid;
            uint256 remainBlocks = bonusEndBlock - block.number;
            lockups[_stakeType].rate = remainRewards / remainBlocks;
            emit LockupUpdated(_stakeType, lockups[_stakeType].duration, lockups[_stakeType].depositFee, lockups[_stakeType].withdrawFee, lockups[_stakeType].rate);
        }
    }
    /*
     * @notice Withdraw reward token
     * @dev Only callable by owner. Needs to be for emergency.
     */
    function emergencyRewardWithdraw(uint256 _amount) external onlyOwner {
        require( block.number > bonusEndBlock, "Pool is running");
        require(availableRewardTokens() >= _amount, "Insufficient reward tokens");
        earnedToken.safeTransfer(address(msg.sender), _amount);        
        if (totalEarned > 0) {
            if (_amount > totalEarned) {
                totalEarned = 0;
            } else {
                totalEarned = totalEarned - _amount;
            }
        }
    }
    /**
     * @notice It allows the admin to recover wrong tokens sent to the contract
     * @param _tokenAddress: the address of the token to withdraw
     * @param _tokenAmount: the number of tokens to withdraw
     * @dev This function is only callable by admin.
     */
    function recoverWrongTokens(address _tokenAddress, uint256 _tokenAmount) external onlyOwner {
        require(
            _tokenAddress != address(earnedToken),
            "Cannot be reward token"
        );
        if(_tokenAddress == address(stakingToken)) {
            uint256 tokenBal = stakingToken.balanceOf(address(this));
            require(_tokenAmount <= tokenBal - totalStaked, "Insufficient balance");
        }
        if(_tokenAddress == address(0x0)) {
            payable(msg.sender).transfer(_tokenAmount);
        } else {
            IERC20(_tokenAddress).safeTransfer(address(msg.sender), _tokenAmount);
        }
        emit AdminTokenRecovered(_tokenAddress, _tokenAmount);
    }
    function startReward() external onlyOwner {
        require(startBlock == 0, "Pool was already started");
        startBlock = block.number + 100;
        bonusEndBlock = startBlock + duration * 6426;
        for(uint256 i = 0; i < lockups.length; i++) {
            lockups[i].lastRewardBlock = startBlock;
        }
        
        emit NewStartAndEndBlocks(startBlock, bonusEndBlock);
    }
    function stopReward() external onlyOwner {
        for(uint8 i = 0; i < lockups.length; i++) {
            _updatePool(i);
        }
        uint256 remainRewards = availableRewardTokens() + paidRewards;
        if(remainRewards > shouldTotalPaid) {
            remainRewards = remainRewards - shouldTotalPaid;
            earnedToken.transfer(msg.sender, remainRewards);
            _updateEarned(remainRewards);
        }
        bonusEndBlock = block.number;
        emit RewardsStop(bonusEndBlock);
    }
    function updateEndBlock(uint256 _endBlock) external onlyOwner {
        require(startBlock > 0, "Pool is not started");
        require(bonusEndBlock > block.number, "Pool was already finished");
        require(_endBlock > block.number && _endBlock > startBlock, "Invalid end block");
        bonusEndBlock = _endBlock;
        emit EndBlockUpdated(_endBlock);
    }
    /*
     * @notice Update pool limit per user
     * @dev Only callable by owner.
     * @param _hasUserLimit: whether the limit remains forced
     * @param _poolLimitPerUser: new pool limit per user
     */
    function updatePoolLimitPerUser( bool _hasUserLimit, uint256 _poolLimitPerUser) external onlyOwner {
        if (_hasUserLimit) {
            require(
                _poolLimitPerUser > poolLimitPerUser,
                "New limit must be higher"
            );
            poolLimitPerUser = _poolLimitPerUser;
        } else {
            poolLimitPerUser = 0;
        }
        hasUserLimit = _hasUserLimit;
        emit UpdatePoolLimit(poolLimitPerUser, _hasUserLimit);
    }
    function updateLockup(uint8 _stakeType, uint256 _duration, uint256 _depositFee, uint256 _withdrawFee, uint256 _rate, uint256 _totalStakedLimit) external onlyOwner {
        // require(block.number < startBlock, "Pool was already started");
        require(_stakeType < lockups.length, "Lockup Not found");
        require(_depositFee < 2000, "Invalid deposit fee");
        require(_withdrawFee < 2000, "Invalid withdraw fee");
        _updatePool(_stakeType);
        Lockup storage _lockup = lockups[_stakeType];
        _lockup.duration = _duration;
        _lockup.depositFee = _depositFee;
        _lockup.withdrawFee = _withdrawFee;
        _lockup.rate = _rate;
        _lockup.totalStakedLimit = _totalStakedLimit;
        
        emit LockupUpdated(_stakeType, _duration, _depositFee, _withdrawFee, _rate);
    }
    function addLockup(uint256 _duration, uint256 _depositFee, uint256 _withdrawFee, uint256 _rate, uint256 _totalStakedLimit) external onlyOwner {
        require(_depositFee < 2000, "Invalid deposit fee");
        require(_withdrawFee < 2000, "Invalid withdraw fee");
        
        lockups.push();
        
        Lockup storage _lockup = lockups[lockups.length - 1];
        _lockup.duration = _duration;
        _lockup.depositFee = _depositFee;
        _lockup.withdrawFee = _withdrawFee;
        _lockup.rate = _rate;
        _lockup.lastRewardBlock = block.number;
        _lockup.totalStakedLimit = _totalStakedLimit;
        emit LockupUpdated(uint8(lockups.length - 1), _duration, _depositFee, _withdrawFee, _rate);
    }
    function setServiceInfo(address _addr, uint256 _fee) external {
        require(msg.sender == buyBackWallet, "setServiceInfo: FORBIDDEN");
        require(_addr != address(0x0), "Invalid address");
        require(_fee < 0.05 ether, "fee cannot exceed 0.05 ether");
        buyBackWallet = _addr;
        performanceFee = _fee;
        emit ServiceInfoUpadted(_addr, _fee);
    }
    
    function setDuration(uint256 _duration) external onlyOwner {
        require(startBlock == 0, "Pool was already started");
        require(_duration >= 30, "lower limit reached");
        duration = _duration;
        emit DurationUpdated(_duration);
    }
    function setSettings(
        uint256 _slippageFactor, 
        address _uniRouter, 
        address[] memory _earnedToStakedPath, 
        address[] memory _reflectionToStakedPath,
        address _feeAddr
    ) external onlyOwner {
        require(_slippageFactor <= slippageFactorUL, "_slippageFactor too high");
        require(_feeAddr != address(0x0), "Invalid Address");
        slippageFactor = _slippageFactor;
        uniRouterAddress = _uniRouter;
        reflectionToStakedPath = _reflectionToStakedPath;
        earnedToStakedPath = _earnedToStakedPath;
        walletA = _feeAddr;
        emit SetSettings(_slippageFactor, _uniRouter, _earnedToStakedPath, _reflectionToStakedPath, _feeAddr);
    }
    /************************
    ** Internal Methods
    *************************/
    /*
     * @notice Update reward variables of the given pool to be up-to-date.
     */
    function _updatePool(uint8 _stakeType) internal {
        // calc reflection rate
        if(totalStaked > 0) {
            uint256 reflectionAmount = availableDividendTokens();
            if(reflectionAmount < totalReflections) {
                reflectionAmount = totalReflections;
            }
            uint256 sTokenBal = totalStaked;
            uint256 eTokenBal = availableRewardTokens();
            if(address(stakingToken) == address(earnedToken)) {
                sTokenBal = sTokenBal + eTokenBal;
            }
            accDividendPerShare = accDividendPerShare + (
                (reflectionAmount - totalReflections) * PRECISION_FACTOR_REFLECTION / sTokenBal
            );
            if(address(stakingToken) == address(earnedToken)) {
                reflections = reflections + (reflectionAmount - totalReflections) * eTokenBal / sTokenBal;
            }
            totalReflections = reflectionAmount;
        }
        Lockup storage lockup = lockups[_stakeType];
        if (block.number <= lockup.lastRewardBlock || lockup.lastRewardBlock == 0) return;
        if (lockup.totalStaked == 0) {
            lockup.lastRewardBlock = block.number;
            return;
        }
        uint256 multiplier = _getMultiplier(lockup.lastRewardBlock, block.number);
        uint256 _reward = multiplier * lockup.rate;
        lockup.accTokenPerShare = lockup.accTokenPerShare + (
            _reward * PRECISION_FACTOR / lockup.totalStaked
        );
        lockup.lastRewardBlock = block.number;
        shouldTotalPaid = shouldTotalPaid + _reward;
    }
    function estimateDividendAmount(uint256 amount) internal view returns(uint256) {
        uint256 dTokenBal = availableDividendTokens();
        if(amount > totalReflections) amount = totalReflections;
        if(amount > dTokenBal) amount = dTokenBal;
        return amount;
    }
    /*
     * @notice Return reward multiplier over the given _from to _to block.
     * @param _from: block to start
     * @param _to: block to finish
     */
    function _getMultiplier(uint256 _from, uint256 _to)
        internal
        view
        returns (uint256)
    {
        if (_to <= bonusEndBlock) {
            return _to - _from;
        } else if (_from >= bonusEndBlock) {
            return 0;
        } else {
            return bonusEndBlock - _from;
        }
    }
    function _transferToken(address _token, address _to, uint256 _amount) internal {
        if(_token == address(0x0)) {
            payable(_to).transfer(_amount);
        } else {
            IERC20(_token).transfer(_to, _amount);
        }
    }
    function _updateEarned(uint256 _amount) internal {
        if(totalEarned > _amount) {
            totalEarned = totalEarned - _amount;
        } else {
            totalEarned = 0;
        }
    }
    function _safeSwap(
        uint256 _amountIn,
        address[] memory _path,
        address _to
    ) internal {
        uint256[] memory amounts = IUniRouter02(uniRouterAddress).getAmountsOut(_amountIn, _path);
        uint256 amountOut = amounts[amounts.length - 1];
        IERC20(_path[0]).safeApprove(uniRouterAddress, _amountIn);
        IUniRouter02(uniRouterAddress).swapExactTokensForTokensSupportingFeeOnTransferTokens(
            _amountIn,
            amountOut * slippageFactor / 1000,
            _path,
            _to,
            block.timestamp + 600
        );
    }
    receive() external payable {}
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../../../utils/Address.sol";
/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;
    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }
    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }
    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }
    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }
    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }
    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.
        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }
    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }
    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }
    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }
    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }
    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.
    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;
    uint256 private _status;
    constructor() {
        _status = _NOT_ENTERED;
    }
    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
        _;
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "./IUniRouter01.sol";
interface IUniRouter02 is IUniRouter01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountETH);
    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
}// SPDX-License-Identifier: MIT
pragma solidity >=0.5.0;
interface IWETH {
    function deposit() external payable;
    function transfer(address to, uint value) external returns (bool);
    function withdraw(uint) external;
}// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);
    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);
    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);
    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);
    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);
    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);
    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
pragma solidity ^0.8.0;
/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.
        uint256 size;
        assembly {
            size := extcodesize(account)
        }
        return size > 0;
    }
    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");
        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }
    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }
    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }
    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface IUniRouter01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function addLiquidity(
        address tokenA,
        address tokenB,
        uint256 amountADesired,
        uint256 amountBDesired,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    )
        external
        returns (
            uint256 amountA,
            uint256 amountB,
            uint256 liquidity
        );
    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountA, uint256 amountB);
    function removeLiquidityETH(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external returns (uint256 amountToken, uint256 amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint256 liquidity,
        uint256 amountAMin,
        uint256 amountBMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountA, uint256 amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint256 liquidity,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline,
        bool approveMax,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (uint256 amountToken, uint256 amountETH);
    function swapExactTokensForTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);
    function swapTokensForExactTokens(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);
    function swapExactETHForTokens(
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);
    function swapTokensForExactETH(
        uint256 amountOut,
        uint256 amountInMax,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);
    function swapExactTokensForETH(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external returns (uint256[] memory amounts);
    function swapETHForExactTokens(
        uint256 amountOut,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external payable returns (uint256[] memory amounts);
    function quote(
        uint256 amountA,
        uint256 reserveA,
        uint256 reserveB
    ) external pure returns (uint256 amountB);
    function getAmountOut(
        uint256 amountIn,
        uint256 reserveIn,
        uint256 reserveOut
    ) external pure returns (uint256 amountOut);
    function getAmountIn(
        uint256 amountOut,
        uint256 reserveIn,
        uint256 reserveOut
    ) external pure returns (uint256 amountIn);
    function getAmountsOut(uint256 amountIn, address[] calldata path)
        external
        view
        returns (uint256[] memory amounts);
    function getAmountsIn(uint256 amountOut, address[] calldata path)
        external
        view
        returns (uint256[] memory amounts);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.15;

interface IERC20 {
	function totalSupply() external view returns (uint256);

	function balanceOf(address account) external view returns (uint256);

	function transfer(address recipient, uint256 amount)
	external
	returns (bool);

	function allowance(address owner, address spender)
	external
	view
	returns (uint256);

	function approve(address spender, uint256 amount) external returns (bool);

	function transferFrom(
		address sender,
		address recipient,
		uint256 amount
	) external returns (bool);

	event Transfer(address indexed from, address indexed to, uint256 value);

	event Approval(
		address indexed owner,
		address indexed spender,
		uint256 value
	);
}

interface IFactory {
	function createPair(address tokenA, address tokenB)
	external
	returns (address pair);

	function getPair(address tokenA, address tokenB)
	external
	view
	returns (address pair);
}

interface IRouter {
	function factory() external pure returns (address);

	function WETH() external pure returns (address);

	function addLiquidityETH(
		address token,
		uint256 amountTokenDesired,
		uint256 amountTokenMin,
		uint256 amountETHMin,
		address to,
		uint256 deadline
	)
	external
	payable
	returns (
		uint256 amountToken,
		uint256 amountETH,
		uint256 liquidity
	);

	function swapExactETHForTokensSupportingFeeOnTransferTokens(
		uint256 amountOutMin,
		address[] calldata path,
		address to,
		uint256 deadline
	) external payable;

	function swapExactTokensForETHSupportingFeeOnTransferTokens(
		uint256 amountIn,
		uint256 amountOutMin,
		address[] calldata path,
		address to,
		uint256 deadline
	) external;
}

interface IERC20Metadata is IERC20 {
	function name() external view returns (string memory);
	function symbol() external view returns (string memory);
	function decimals() external view returns (uint8);
}

interface DividendPayingTokenInterface {
	function dividendOf(address _owner) external view returns(uint256);
	function withdrawDividend() external;
	event DividendsDistributed(
		address indexed from,
		uint256 weiAmount
	);
	event DividendWithdrawn(
		address indexed to,
		uint256 weiAmount
	);
}

interface DividendPayingTokenOptionalInterface {
	function withdrawableDividendOf(address _owner) external view returns(uint256);
	function withdrawnDividendOf(address _owner) external view returns(uint256);
	function accumulativeDividendOf(address _owner) external view returns(uint256);
}

library SafeMath {

	function add(uint256 a, uint256 b) internal pure returns (uint256) {
		uint256 c = a + b;
		require(c >= a, "SafeMath: addition overflow");

		return c;
	}

	function sub(uint256 a, uint256 b) internal pure returns (uint256) {
		return sub(a, b, "SafeMath: subtraction overflow");
	}

	function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
		require(b <= a, errorMessage);
		uint256 c = a - b;

		return c;
	}

	function mul(uint256 a, uint256 b) internal pure returns (uint256) {
		// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
		// benefit is lost if 'b' is also tested.
		// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
		if (a == 0) {
			return 0;
		}

		uint256 c = a * b;
		require(c / a == b, "SafeMath: multiplication overflow");

		return c;
	}

	function div(uint256 a, uint256 b) internal pure returns (uint256) {
		return div(a, b, "SafeMath: division by zero");
	}

	function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
		require(b > 0, errorMessage);
		uint256 c = a / b;
		// assert(a == b * c + a % b); // There is no case in which this doesn't hold

		return c;
	}

	function mod(uint256 a, uint256 b) internal pure returns (uint256) {
		return mod(a, b, "SafeMath: modulo by zero");
	}

	function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
		require(b != 0, errorMessage);
		return a % b;
	}
}

library SafeMathInt {
	int256 private constant MIN_INT256 = int256(1) << 255;
	int256 private constant MAX_INT256 = ~(int256(1) << 255);

	function mul(int256 a, int256 b) internal pure returns (int256) {
		int256 c = a * b;

		// Detect overflow when multiplying MIN_INT256 with -1
		require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
		require((b == 0) || (c / b == a));
		return c;
	}
	function div(int256 a, int256 b) internal pure returns (int256) {
		// Prevent overflow when dividing MIN_INT256 by -1
		require(b != -1 || a != MIN_INT256);

		// Solidity already throws when dividing by 0.
		return a / b;
	}
	function sub(int256 a, int256 b) internal pure returns (int256) {
		int256 c = a - b;
		require((b >= 0 && c <= a) || (b < 0 && c > a));
		return c;
	}
	function add(int256 a, int256 b) internal pure returns (int256) {
		int256 c = a + b;
		require((b >= 0 && c >= a) || (b < 0 && c < a));
		return c;
	}
	function abs(int256 a) internal pure returns (int256) {
		require(a != MIN_INT256);
		return a < 0 ? -a : a;
	}
	function toUint256Safe(int256 a) internal pure returns (uint256) {
		require(a >= 0);
		return uint256(a);
	}
}

library SafeMathUint {
	function toInt256Safe(uint256 a) internal pure returns (int256) {
		int256 b = int256(a);
		require(b >= 0);
		return b;
	}
}

library IterableMapping {
	struct Map {
		address[] keys;
		mapping(address => uint) values;
		mapping(address => uint) indexOf;
		mapping(address => bool) inserted;
	}

	function get(Map storage map, address key) public view returns (uint) {
		return map.values[key];
	}

	function getIndexOfKey(Map storage map, address key) public view returns (int) {
		if(!map.inserted[key]) {
			return -1;
		}
		return int(map.indexOf[key]);
	}

	function getKeyAtIndex(Map storage map, uint index) public view returns (address) {
		return map.keys[index];
	}

	function size(Map storage map) public view returns (uint) {
		return map.keys.length;
	}

	function set(Map storage map, address key, uint val) public {
		if (map.inserted[key]) {
			map.values[key] = val;
		} else {
			map.inserted[key] = true;
			map.values[key] = val;
			map.indexOf[key] = map.keys.length;
			map.keys.push(key);
		}
	}

	function remove(Map storage map, address key) public {
		if (!map.inserted[key]) {
			return;
		}

		delete map.inserted[key];
		delete map.values[key];

		uint index = map.indexOf[key];
		uint lastIndex = map.keys.length - 1;
		address lastKey = map.keys[lastIndex];

		map.indexOf[lastKey] = index;
		delete map.indexOf[key];

		map.keys[index] = lastKey;
		map.keys.pop();
	}
}

abstract contract Context {
	function _msgSender() internal view virtual returns (address) {
		return msg.sender;
	}

	function _msgData() internal view virtual returns (bytes calldata) {
		this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
		return msg.data;
	}
}

contract Ownable is Context {
	address private _owner;

	event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

	constructor () {
		address msgSender = _msgSender();
		_owner = msgSender;
		emit OwnershipTransferred(address(0), msgSender);
	}

	function owner() public view returns (address) {
		return _owner;
	}

	modifier onlyOwner() {
		require(_owner == _msgSender(), "Ownable: caller is not the owner");
		_;
	}

	function renounceOwnership() public virtual onlyOwner {
		emit OwnershipTransferred(_owner, address(0));
		_owner = address(0);
	}

	function transferOwnership(address newOwner) public virtual onlyOwner {
		require(newOwner != address(0), "Ownable: new owner is the zero address");
		emit OwnershipTransferred(_owner, newOwner);
		_owner = newOwner;
	}
}

contract ERC20 is Context, IERC20, IERC20Metadata {
	using SafeMath for uint256;

	mapping(address => uint256) private _balances;
	mapping(address => mapping(address => uint256)) private _allowances;

	uint256 private _totalSupply;
	string private _name;
	string private _symbol;

	constructor(string memory name_, string memory symbol_) {
		_name = name_;
		_symbol = symbol_;
	}

	function name() public view virtual override returns (string memory) {
		return _name;
	}

	function symbol() public view virtual override returns (string memory) {
		return _symbol;
	}

	function decimals() public view virtual override returns (uint8) {
		return 18;
	}

	function totalSupply() public view virtual override returns (uint256) {
		return _totalSupply;
	}

	function balanceOf(address account) public view virtual override returns (uint256) {
		return _balances[account];
	}

	function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
		_transfer(_msgSender(), recipient, amount);
		return true;
	}

	function allowance(address owner, address spender) public view virtual override returns (uint256) {
		return _allowances[owner][spender];
	}

	function approve(address spender, uint256 amount) public virtual override returns (bool) {
		_approve(_msgSender(), spender, amount);
		return true;
	}

	function transferFrom(
		address sender,
		address recipient,
		uint256 amount
	) public virtual override returns (bool) {
		_transfer(sender, recipient, amount);
		_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
		return true;
	}

	function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
		_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
		return true;
	}

	function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
		_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
		return true;
	}

	function _transfer(
		address sender,
		address recipient,
		uint256 amount
	) internal virtual {
		require(sender != address(0), "ERC20: transfer from the zero address");
		require(recipient != address(0), "ERC20: transfer to the zero address");
		_beforeTokenTransfer(sender, recipient, amount);
		_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
		_balances[recipient] = _balances[recipient].add(amount);
		emit Transfer(sender, recipient, amount);
	}

	function _mint(address account, uint256 amount) internal virtual {
		require(account != address(0), "ERC20: mint to the zero address");
		_beforeTokenTransfer(address(0), account, amount);
		_totalSupply = _totalSupply.add(amount);
		_balances[account] = _balances[account].add(amount);
		emit Transfer(address(0), account, amount);
	}

	function _burn(address account, uint256 amount) internal virtual {
		require(account != address(0), "ERC20: burn from the zero address");
		_beforeTokenTransfer(account, address(0), amount);
		_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
		_totalSupply = _totalSupply.sub(amount);
		emit Transfer(account, address(0), amount);
	}

	function _approve(
		address owner,
		address spender,
		uint256 amount
	) internal virtual {
		require(owner != address(0), "ERC20: approve from the zero address");
		require(spender != address(0), "ERC20: approve to the zero address");
		_allowances[owner][spender] = amount;
		emit Approval(owner, spender, amount);
	}

	function _beforeTokenTransfer(
		address from,
		address to,
		uint256 amount
	) internal virtual {}
}

contract DividendPayingToken is ERC20, Ownable, DividendPayingTokenInterface, DividendPayingTokenOptionalInterface {
	using SafeMath for uint256;
	using SafeMathUint for uint256;
	using SafeMathInt for int256;

	uint256 constant internal magnitude = 2**128;
	uint256 internal magnifiedDividendPerShare;
	uint256 public totalDividendsDistributed;
	address public rewardToken;
	IRouter public uniswapV2Router;

	mapping(address => int256) internal magnifiedDividendCorrections;
	mapping(address => uint256) internal withdrawnDividends;

	constructor(string memory _name, string memory _symbol) ERC20(_name, _symbol) {}

	receive() external payable {}

	function distributeDividendsUsingAmount(uint256 amount) public onlyOwner {
		require(totalSupply() > 0);
		if (amount > 0) {
			magnifiedDividendPerShare = magnifiedDividendPerShare.add((amount).mul(magnitude) / totalSupply());
			emit DividendsDistributed(msg.sender, amount);
			totalDividendsDistributed = totalDividendsDistributed.add(amount);
		}
	}
	function withdrawDividend() public virtual override onlyOwner {
		_withdrawDividendOfUser(payable(msg.sender));
	}
	function _withdrawDividendOfUser(address payable user) internal returns (uint256) {
		uint256 _withdrawableDividend = withdrawableDividendOf(user);
		if (_withdrawableDividend > 0) {
			withdrawnDividends[user] = withdrawnDividends[user].add(_withdrawableDividend);
			emit DividendWithdrawn(user, _withdrawableDividend);
			(bool success) = IERC20(rewardToken).transfer(user, _withdrawableDividend);
			if(!success) {
				withdrawnDividends[user] = withdrawnDividends[user].sub(_withdrawableDividend);
				return 0;
			}
			return _withdrawableDividend;
		}
		return 0;
	}
	function dividendOf(address _owner) public view override returns(uint256) {
		return withdrawableDividendOf(_owner);
	}
	function withdrawableDividendOf(address _owner) public view override returns(uint256) {
		return accumulativeDividendOf(_owner).sub(withdrawnDividends[_owner]);
	}
	function withdrawnDividendOf(address _owner) public view override returns(uint256) {
		return withdrawnDividends[_owner];
	}
	function accumulativeDividendOf(address _owner) public view override returns(uint256) {
		return magnifiedDividendPerShare.mul(balanceOf(_owner)).toInt256Safe()
		.add(magnifiedDividendCorrections[_owner]).toUint256Safe() / magnitude;
	}
	function _transfer(address from, address to, uint256 value) internal virtual override {
		require(false);
		int256 _magCorrection = magnifiedDividendPerShare.mul(value).toInt256Safe();
		magnifiedDividendCorrections[from] = magnifiedDividendCorrections[from].add(_magCorrection);
		magnifiedDividendCorrections[to] = magnifiedDividendCorrections[to].sub(_magCorrection);
	}
	function _mint(address account, uint256 value) internal override {
		super._mint(account, value);
		magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
		.sub( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
	}
	function _burn(address account, uint256 value) internal override {
		super._burn(account, value);
		magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
		.add( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
	}
	function _setBalance(address account, uint256 newBalance) internal {
		uint256 currentBalance = balanceOf(account);
		if(newBalance > currentBalance) {
			uint256 mintAmount = newBalance.sub(currentBalance);
			_mint(account, mintAmount);
		} else if(newBalance < currentBalance) {
			uint256 burnAmount = currentBalance.sub(newBalance);
			_burn(account, burnAmount);
		}
	}
	function _setRewardToken(address token) internal onlyOwner {
	    rewardToken = token;
	}
	function _setUniswapRouter(address router) internal onlyOwner {
	    uniswapV2Router = IRouter(router);
	}
}

contract GroveToken is Ownable, ERC20 {

	IRouter public uniswapV2Router;
	address public immutable uniswapV2Pair;

	string private constant _name =  "Grove Token";
	string private constant _symbol = "GVR";
	uint8 private constant _decimals = 18;

	GroveTokenDividendTracker public dividendTracker;

	bool public isTradingEnabled;

	// initialSupply
	uint256 constant initialSupply = 5000000000000000 * (10**18);

	uint256 public maxWalletAmount = initialSupply * 3;

	uint256 public maxTxAmount = initialSupply * 3;

	bool private _swapping;
	uint256 public minimumTokensBeforeSwap = 150000000 * (10**18);

	address public liquidityWallet;
	address public marketingWallet;
	address public buyBackWallet;
	address private bridge;

	struct CustomTaxPeriod {
		bytes23 periodName;
		uint8 blocksInPeriod;
		uint256 timeInPeriod;
		uint8 liquidityFeeOnBuy;
		uint8 liquidityFeeOnSell;
		uint8 marketingFeeOnBuy;
		uint8 marketingFeeOnSell;
		uint8 buyBackFeeOnBuy;
		uint8 buyBackFeeOnSell;
        uint8 burnFeeOnBuy;
		uint8 burnFeeOnSell;
		uint8 holdersFeeOnBuy;
		uint8 holdersFeeOnSell;
	}

	// Base taxes
	CustomTaxPeriod private _base = CustomTaxPeriod("base",0,0,1,1,3,3,1,1,2,2,3,3);

	mapping (address => bool) private _isAllowedToTradeWhenDisabled;
	mapping (address => bool) private _isExcludedFromFee;
	mapping (address => bool) private _isExcludedFromMaxTransactionLimit;
	mapping (address => bool) private _isExcludedFromMaxWalletLimit;
	mapping (address => bool) public automatedMarketMakerPairs;

	uint8 private _liquidityFee;
	uint8 private _marketingFee;
	uint8 private _buyBackFee;
    uint8 private _burnFee;
	uint8 private _holdersFee;
	uint8 private _totalFee;

	event AutomatedMarketMakerPairChange(address indexed pair, bool indexed value);
	event UniswapV2RouterChange(address indexed newAddress, address indexed oldAddress);
	event WalletChange(string indexed indentifier, address indexed newWallet, address indexed oldWallet);
	event FeeChange(string indexed identifier, uint8 liquidityFee, uint8 marketingFee, uint8 buyBackFee, uint8 burnFee, uint8 holdersFee);
	event CustomTaxPeriodChange(uint256 indexed newValue, uint256 indexed oldValue, string indexed taxType, bytes23 period);
	event MaxTransactionAmountChange(uint256 indexed newValue, uint256 indexed oldValue);
	event MaxWalletAmountChange(uint256 indexed newValue, uint256 indexed oldValue);
	event ExcludeFromFeesChange(address indexed account, bool isExcluded);
	event ExcludeFromMaxTransferChange(address indexed account, bool isExcluded);
	event ExcludeFromMaxWalletChange(address indexed account, bool isExcluded);
	event AllowedWhenTradingDisabledChange(address indexed account, bool isExcluded);
	event MinTokenAmountBeforeSwapChange(uint256 indexed newValue, uint256 indexed oldValue);
	event MinTokenAmountForDividendsChange(uint256 indexed newValue, uint256 indexed oldValue);
	event DividendsSent(uint256 tokensSwapped);
	event SwapAndLiquify(uint256 tokensSwapped, uint256 ethReceived,uint256 tokensIntoLiqudity);
    event ClaimETHOverflow(uint256 amount);
    event TokenBurn(uint8 _burnFee, uint256 burnAmount);
	event FeesApplied(uint8 liquidityFee, uint8 marketingFee, uint8 buyBackFee, uint8 burnFee, uint8 holdersFee, uint8 totalFee);
	event BridgeContractChange(address bridgeContract);

	modifier hasMintPermission {
		require(msg.sender == bridge, "only bridge contract can mint");
		_;
	}

	constructor() ERC20(_name, _symbol) {
		dividendTracker = new GroveTokenDividendTracker();
		dividendTracker.setUniswapRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        dividendTracker.setRewardToken(address(this));

		liquidityWallet = owner();
		marketingWallet = owner();
		buyBackWallet = owner();

		IRouter _uniswapV2Router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
		address _uniswapV2Pair = IFactory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
		uniswapV2Router = _uniswapV2Router;
		uniswapV2Pair = _uniswapV2Pair;
		_setAutomatedMarketMakerPair(_uniswapV2Pair, true);

		_isExcludedFromFee[owner()] = true;
		_isExcludedFromFee[address(this)] = true;
		_isExcludedFromFee[address(dividendTracker)] = true;

		dividendTracker.excludeFromDividends(address(dividendTracker));
		dividendTracker.excludeFromDividends(address(this));
		dividendTracker.excludeFromDividends(address(0x000000000000000000000000000000000000dEaD));
		dividendTracker.excludeFromDividends(owner());
		dividendTracker.excludeFromDividends(address(_uniswapV2Router));

		_isAllowedToTradeWhenDisabled[owner()] = true;

		_isExcludedFromMaxTransactionLimit[address(dividendTracker)] = true;
		_isExcludedFromMaxTransactionLimit[address(this)] = true;

		_isExcludedFromMaxWalletLimit[_uniswapV2Pair] = true;
		_isExcludedFromMaxWalletLimit[address(dividendTracker)] = true;
		_isExcludedFromMaxWalletLimit[address(uniswapV2Router)] = true;
		_isExcludedFromMaxWalletLimit[address(this)] = true;
		_isExcludedFromMaxWalletLimit[owner()] = true;

		_mint(owner(), initialSupply);
	}

	receive() external payable {}

	// Setters
	function activateTrading() external onlyOwner {
		isTradingEnabled = true;
	}
	function deactivateTrading() external onlyOwner {
		isTradingEnabled = false;
	}
	function _setAutomatedMarketMakerPair(address pair, bool value) private {
		require(automatedMarketMakerPairs[pair] != value, "GroveToken: Automated market maker pair is already set to that value");
		automatedMarketMakerPairs[pair] = value;
		if(value) {
			dividendTracker.excludeFromDividends(pair);
		}
		emit AutomatedMarketMakerPairChange(pair, value);
	}
	function allowTradingWhenDisabled(address account, bool allowed) external onlyOwner {
		_isAllowedToTradeWhenDisabled[account] = allowed;
		emit AllowedWhenTradingDisabledChange(account, allowed);
	}
	function excludeFromFees(address account, bool excluded) external onlyOwner {
		require(_isExcludedFromFee[account] != excluded, "GroveToken: Account is already the value of 'excluded'");
		_isExcludedFromFee[account] = excluded;
		emit ExcludeFromFeesChange(account, excluded);
	}
	function excludeFromDividends(address account) external onlyOwner {
		dividendTracker.excludeFromDividends(account);
	}
	function excludeFromMaxTransactionLimit(address account, bool excluded) external onlyOwner {
		require(_isExcludedFromMaxTransactionLimit[account] != excluded, "GroveToken: Account is already the value of 'excluded'");
		_isExcludedFromMaxTransactionLimit[account] = excluded;
		emit ExcludeFromMaxTransferChange(account, excluded);
	}
	function excludeFromMaxWalletLimit(address account, bool excluded) external onlyOwner {
		require(_isExcludedFromMaxWalletLimit[account] != excluded, "GroveToken: Account is already the value of 'excluded'");
		_isExcludedFromMaxWalletLimit[account] = excluded;
		emit ExcludeFromMaxWalletChange(account, excluded);
	}
	function setWallets(address newLiquidityWallet, address newMarketingWallet, address newBuyBackWallet) external onlyOwner {
		if(liquidityWallet != newLiquidityWallet) {
			require(newLiquidityWallet != address(0), "GroveToken: The liquidityWallet cannot be 0");
			emit WalletChange("liquidityWallet", newLiquidityWallet, liquidityWallet);
			liquidityWallet = newLiquidityWallet;
		}
		if(marketingWallet != newMarketingWallet) {
			require(newMarketingWallet != address(0), "GroveToken: The marketingWallet cannot be 0");
			emit WalletChange("marketingWallet", newMarketingWallet, marketingWallet);
			marketingWallet = newMarketingWallet;
		}
		if(buyBackWallet != newBuyBackWallet) {
			require(newBuyBackWallet != address(0), "GroveToken: The buyBackWallet cannot be 0");
			emit WalletChange("buyBackWallet", newBuyBackWallet, buyBackWallet);
			buyBackWallet = newBuyBackWallet;
		}
	}
	// Base fees
	function setBaseFeesOnBuy(uint8 _liquidityFeeOnBuy, uint8 _marketingFeeOnBuy, uint8 _buyBackFeeOnBuy, uint8 _burnFeeOnBuy, uint8 _holdersFeeOnBuy) external onlyOwner {
		_setCustomBuyTaxPeriod(_base, _liquidityFeeOnBuy, _marketingFeeOnBuy, _buyBackFeeOnBuy, _burnFeeOnBuy, _holdersFeeOnBuy);
		emit FeeChange("baseFees-Buy", _liquidityFeeOnBuy, _marketingFeeOnBuy, _buyBackFeeOnBuy, _burnFeeOnBuy, _holdersFeeOnBuy);
	}
	function setBaseFeesOnSell(uint8 _liquidityFeeOnSell, uint8 _marketingFeeOnSell, uint8 _buyBackFeeOnSell, uint8 _burnFeeOnSell, uint8 _holdersFeeOnSell) external onlyOwner {
		_setCustomSellTaxPeriod(_base, _liquidityFeeOnSell, _marketingFeeOnSell, _buyBackFeeOnSell, _burnFeeOnSell, _holdersFeeOnSell);
		emit FeeChange("baseFees-Sell", _liquidityFeeOnSell, _marketingFeeOnSell, _buyBackFeeOnSell, _burnFeeOnSell, _holdersFeeOnSell);
	}
	function setUniswapRouter(address newAddress) external onlyOwner {
		require(newAddress != address(uniswapV2Router), "GroveToken: The router already has that address");
		emit UniswapV2RouterChange(newAddress, address(uniswapV2Router));
		uniswapV2Router = IRouter(newAddress);
		dividendTracker.setUniswapRouter(newAddress);
	}
	function setMaxTransactionAmount(uint256 newValue) external onlyOwner {
		require(newValue != maxTxAmount, "GroveToken: Cannot update maxTxAmount to same value");
		emit MaxTransactionAmountChange(newValue, maxTxAmount);
		maxTxAmount = newValue;
	}
	function setMaxWalletAmount(uint256 newValue) external onlyOwner {
		require(newValue != maxWalletAmount, "GroveToken: Cannot update maxWalletAmount to same value");
		emit MaxWalletAmountChange(newValue, maxWalletAmount);
		maxWalletAmount = newValue;
	}
	function setMinimumTokensBeforeSwap(uint256 newValue) external onlyOwner {
		require(newValue != minimumTokensBeforeSwap, "GroveToken: Cannot update minimumTokensBeforeSwap to same value");
		emit MinTokenAmountBeforeSwapChange(newValue, minimumTokensBeforeSwap);
		minimumTokensBeforeSwap = newValue;
	}
	function setMinimumTokenBalanceForDividends(uint256 newValue) external onlyOwner {
		dividendTracker.setTokenBalanceForDividends(newValue);
	}
	function claim() external {
		dividendTracker.processAccount(payable(msg.sender), false);
    }
	function claimETHOverflow(uint256 amount) external onlyOwner {
	    require(amount < address(this).balance, "GroveToken: Cannot send more than contract balance");
        (bool success,) = address(owner()).call{value : amount}("");
        if (success){
            emit ClaimETHOverflow(amount);
        }
	}
	function mint(address account, uint256 value) external hasMintPermission returns(bool) {
		_mint(account, value);
		return true;
	}
	function burn(uint256 value) external {
		_burn(msg.sender, value);
	}

    function bridgeContract() external view returns (address) {
        return bridge;
    }

    function setBridgeContract(address _bridgeContract) external onlyOwner {
        require(_bridgeContract != address(0x0) && _bridgeContract != bridge, "invalid address");
        bridge = _bridgeContract;
		emit BridgeContractChange(_bridgeContract);
    }

	// Getters
	function getTotalDividendsDistributed() external view returns (uint256) {
		return dividendTracker.totalDividendsDistributed();
	}
	function withdrawableDividendOf(address account) external view returns(uint256) {
		return dividendTracker.withdrawableDividendOf(account);
	}
	function dividendTokenBalanceOf(address account) external view returns (uint256) {
		return dividendTracker.balanceOf(account);
	}
	function getNumberOfDividendTokenHolders() external view returns(uint256) {
		return dividendTracker.getNumberOfTokenHolders();
	}
	function getBaseBuyFees() external view returns (uint8, uint8, uint8, uint8, uint8){
		return (_base.liquidityFeeOnBuy, _base.marketingFeeOnBuy, _base.buyBackFeeOnBuy, _base.burnFeeOnBuy, _base.holdersFeeOnBuy);
	}
	function getBaseSellFees() external view returns (uint8, uint8, uint8, uint8, uint8){
		return (_base.liquidityFeeOnSell, _base.marketingFeeOnSell, _base.buyBackFeeOnSell, _base.burnFeeOnSell, _base.holdersFeeOnSell);
	}

	// Main
	function _transfer(
		address from,
		address to,
		uint256 amount
		) internal override {
			require(from != address(0), "ERC20: transfer from the zero address");
			require(to != address(0), "ERC20: transfer to the zero address");

			if(amount == 0) {
				super._transfer(from, to, 0);
				return;
			}

			bool isBuyFromLp = automatedMarketMakerPairs[from];
			bool isSelltoLp = automatedMarketMakerPairs[to];

			if(!_isAllowedToTradeWhenDisabled[from] && !_isAllowedToTradeWhenDisabled[to]) {
				require(isTradingEnabled, "GroveToken: Trading is currently disabled.");
				if (!_isExcludedFromMaxTransactionLimit[to] && !_isExcludedFromMaxTransactionLimit[from]) {
					require(amount <= maxTxAmount, "GroveToken: Buy amount exceeds the maxTxBuyAmount.");
				}
				if (!_isExcludedFromMaxWalletLimit[to]) {
					require((balanceOf(to) + amount) <= maxWalletAmount, "GroveToken: Expected wallet amount exceeds the maxWalletAmount.");
				}
			}

			_adjustTaxes(isBuyFromLp, isSelltoLp);
			bool canSwap = balanceOf(address(this)) >= minimumTokensBeforeSwap;

			if (
				isTradingEnabled &&
				canSwap &&
				!_swapping &&
				_totalFee > 0 &&
				automatedMarketMakerPairs[to]
			) {
				_swapping = true;
				_swapAndLiquify();
				_swapping = false;
			}

			bool takeFee = !_swapping && isTradingEnabled;

			if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){
				takeFee = false;
			}
			if (takeFee && _totalFee > 0) {
				uint256 fee = amount * _totalFee / 100;
                uint256 burnAmount = amount * _burnFee / 100;
				amount = amount - fee;
				super._transfer(from, address(this), fee);

                if (burnAmount > 0) {
                    super._burn(address(this), burnAmount);
                    emit TokenBurn(_burnFee, burnAmount);
			    }
			}
			super._transfer(from, to, amount);

            try dividendTracker.setBalance(payable(from), balanceOf(from)) {} catch {}
		    try dividendTracker.setBalance(payable(to), balanceOf(to)) {} catch {}
	}
	function _adjustTaxes(bool isBuyFromLp, bool isSelltoLp) private {
		_liquidityFee = 0;
		_marketingFee = 0;
		_buyBackFee = 0;
        _burnFee = 0;
		_holdersFee = 0;

		if (isBuyFromLp) {
			_liquidityFee = _base.liquidityFeeOnBuy;
			_marketingFee = _base.marketingFeeOnBuy;
			_buyBackFee = _base.buyBackFeeOnBuy;
            _burnFee = _base.burnFeeOnBuy;
			_holdersFee = _base.holdersFeeOnBuy;
		}
	    if (isSelltoLp) {
	    	_liquidityFee = _base.liquidityFeeOnSell;
			_marketingFee = _base.marketingFeeOnSell;
			_buyBackFee = _base.buyBackFeeOnSell;
            _burnFee = _base.burnFeeOnSell;
			_holdersFee = _base.holdersFeeOnSell;
		}
        if (!isSelltoLp && !isBuyFromLp) {
			_liquidityFee = _base.liquidityFeeOnSell;
			_marketingFee = _base.marketingFeeOnSell;
			_buyBackFee = _base.buyBackFeeOnSell;
            _burnFee = _base.burnFeeOnSell;
			_holdersFee = _base.holdersFeeOnSell;
		}
		_totalFee = _liquidityFee + _marketingFee + _buyBackFee + _burnFee + _holdersFee;
		emit FeesApplied(_liquidityFee, _marketingFee, _buyBackFee, _burnFee, _holdersFee, _totalFee);
	}
	function _setCustomSellTaxPeriod(CustomTaxPeriod storage map,
		uint8 _liquidityFeeOnSell,
		uint8 _marketingFeeOnSell,
		uint8 _buyBackFeeOnSell,
        uint8 _burnFeeOnSell,
		uint8 _holdersFeeOnSell
	) private {
		if (map.liquidityFeeOnSell != _liquidityFeeOnSell) {
			emit CustomTaxPeriodChange(_liquidityFeeOnSell, map.liquidityFeeOnSell, "liquidityFeeOnSell", map.periodName);
			map.liquidityFeeOnSell = _liquidityFeeOnSell;
		}
		if (map.marketingFeeOnSell != _marketingFeeOnSell) {
			emit CustomTaxPeriodChange(_marketingFeeOnSell, map.marketingFeeOnSell, "marketingFeeOnSell", map.periodName);
			map.marketingFeeOnSell = _marketingFeeOnSell;
		}
		if (map.buyBackFeeOnSell != _buyBackFeeOnSell) {
			emit CustomTaxPeriodChange(_buyBackFeeOnSell, map.buyBackFeeOnSell, "buyBackFeeOnSell", map.periodName);
			map.buyBackFeeOnSell = _buyBackFeeOnSell;
		}
        if (map.burnFeeOnSell != _burnFeeOnSell) {
			emit CustomTaxPeriodChange(_burnFeeOnSell, map.burnFeeOnSell, "burnFeeOnSell", map.periodName);
			map.burnFeeOnSell = _burnFeeOnSell;
		}
		if (map.holdersFeeOnSell != _holdersFeeOnSell) {
			emit CustomTaxPeriodChange(_holdersFeeOnSell, map.holdersFeeOnSell, "holdersFeeOnSell", map.periodName);
			map.holdersFeeOnSell = _holdersFeeOnSell;
		}
	}
	function _setCustomBuyTaxPeriod(CustomTaxPeriod storage map,
		uint8 _liquidityFeeOnBuy,
		uint8 _marketingFeeOnBuy,
		uint8 _buyBackFeeOnBuy,
        uint8 _burnFeeOnBuy,
		uint8 _holdersFeeOnBuy
		) private {
		if (map.liquidityFeeOnBuy != _liquidityFeeOnBuy) {
			emit CustomTaxPeriodChange(_liquidityFeeOnBuy, map.liquidityFeeOnBuy, "liquidityFeeOnBuy", map.periodName);
			map.liquidityFeeOnBuy = _liquidityFeeOnBuy;
		}
		if (map.marketingFeeOnBuy != _marketingFeeOnBuy) {
			emit CustomTaxPeriodChange(_marketingFeeOnBuy, map.marketingFeeOnBuy, "marketingFeeOnBuy", map.periodName);
			map.marketingFeeOnBuy = _marketingFeeOnBuy;
		}
		if (map.buyBackFeeOnBuy != _buyBackFeeOnBuy) {
			emit CustomTaxPeriodChange(_buyBackFeeOnBuy, map.buyBackFeeOnBuy, "buyBackFeeOnBuy", map.periodName);
			map.buyBackFeeOnBuy = _buyBackFeeOnBuy;
		}
        if (map.burnFeeOnBuy != _burnFeeOnBuy) {
			emit CustomTaxPeriodChange(_burnFeeOnBuy, map.burnFeeOnBuy, "burnFeeOnBuy", map.periodName);
			map.burnFeeOnBuy = _burnFeeOnBuy;
		}
		if (map.holdersFeeOnBuy != _holdersFeeOnBuy) {
			emit CustomTaxPeriodChange(_holdersFeeOnBuy, map.holdersFeeOnBuy, "holdersFeeOnBuy", map.periodName);
			map.holdersFeeOnBuy = _holdersFeeOnBuy;
		}
	}
	function _swapAndLiquify() private {
		uint256 contractBalance = balanceOf(address(this));
		uint256 initialETHBalance = address(this).balance;

		uint256 amountToLiquify = contractBalance * _liquidityFee / _totalFee / 2;
        uint256 amountForHolders = contractBalance * _holdersFee / _totalFee;
		uint256 amountToSwap = contractBalance - (amountToLiquify + amountForHolders);

		_swapTokensForETH(amountToSwap);

		uint256 ETHBalanceAfterSwap = address(this).balance  - initialETHBalance;
		uint256 totalETHFee = _totalFee - ((_liquidityFee / 2) + _burnFee + _holdersFee);
		uint256 amountETHLiquidity = ETHBalanceAfterSwap * _liquidityFee / totalETHFee / 2;
        uint256 amountETHMarketing = ETHBalanceAfterSwap * _marketingFee / totalETHFee;
		uint256 amountETHBuyBack = ETHBalanceAfterSwap - (amountETHLiquidity + amountETHMarketing);

		payable(buyBackWallet).transfer(amountETHBuyBack);
        payable(marketingWallet).transfer(amountETHMarketing);

		if (amountToLiquify > 0) {
			_addLiquidity(amountToLiquify, amountETHLiquidity);
			emit SwapAndLiquify(amountToSwap, amountETHLiquidity, amountToLiquify);
        }

		(bool success) = IERC20(address(this)).transfer(address(dividendTracker), amountForHolders);
		if(success) {
			dividendTracker.distributeDividendsUsingAmount(amountForHolders);
			emit DividendsSent(amountForHolders);
		}
	}
	function _swapTokensForETH(uint256 tokenAmount) private {
		address[] memory path = new address[](2);
		path[0] = address(this);
		path[1] = uniswapV2Router.WETH();
		_approve(address(this), address(uniswapV2Router), tokenAmount);
		uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
			tokenAmount,
			0, // accept any amount of ETH
			path,
			address(this),
			block.timestamp
		);
	}
	function _addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
		_approve(address(this), address(uniswapV2Router), tokenAmount);
		uniswapV2Router.addLiquidityETH{value: ethAmount}(
			address(this),
			tokenAmount,
			0, // slippage is unavoidable
			0, // slippage is unavoidable
			liquidityWallet,
			block.timestamp
		);
	}
}

contract GroveTokenDividendTracker is DividendPayingToken {
	using SafeMath for uint256;
	using SafeMathInt for int256;
	using IterableMapping for IterableMapping.Map;

	IterableMapping.Map private tokenHoldersMap;

	mapping (address => bool) public excludedFromDividends;
	mapping (address => uint256) public lastClaimTimes;
	uint256 public claimWait;
	uint256 public minimumTokenBalanceForDividends;

	event ExcludeFromDividends(address indexed account);
	event ClaimWaitUpdated(uint256 indexed newValue, uint256 indexed oldValue);
	event Claim(address indexed account, uint256 amount, bool indexed automatic);

	constructor() DividendPayingToken("GroveToken_Dividend_Tracker", "GroveToken_Dividend_Tracker") {
		claimWait = 3600;
		minimumTokenBalanceForDividends = 0 * (10**18);
	}
	function setRewardToken(address token) external onlyOwner {
	    _setRewardToken(token);
	}
	function setUniswapRouter(address router) external onlyOwner {
	    _setUniswapRouter(router);
	}
	function _transfer(address, address, uint256) internal override pure {
		require(false, "GroveToken_Dividend_Tracker: No transfers allowed");
	}
	function excludeFromDividends(address account) external onlyOwner {
		require(!excludedFromDividends[account]);
		excludedFromDividends[account] = true;
		_setBalance(account, 0);
		tokenHoldersMap.remove(account);
		emit ExcludeFromDividends(account);
	}
	function setTokenBalanceForDividends(uint256 newValue) external onlyOwner {
		require(minimumTokenBalanceForDividends != newValue, "GroveToken_Dividend_Tracker: minimumTokenBalanceForDividends already the value of 'newValue'.");
		minimumTokenBalanceForDividends = newValue;
	}
	function getNumberOfTokenHolders() external view returns(uint256) {
		return tokenHoldersMap.keys.length;
	}
    function setBalance(address payable account, uint256 newBalance) external onlyOwner {
		if(excludedFromDividends[account]) {
			return;
		}
		if(newBalance >= minimumTokenBalanceForDividends) {
			_setBalance(account, newBalance);
			tokenHoldersMap.set(account, newBalance);
		}
		else {
			_setBalance(account, 0);
			tokenHoldersMap.remove(account);
		}
		processAccount(account, true);
	}
	function processAccount(address payable account, bool automatic) public onlyOwner returns (bool) {
		uint256 amount = _withdrawDividendOfUser(account);
		if(amount > 0) {
			lastClaimTimes[account] = block.timestamp;
			emit Claim(account, amount, automatic);
			return true;
		}
		return false;
	}
}