Contract Source Code:

/****
SANSHU INU | SHIBA INU REWARDS

Sanshu Inu is following her big brother (Shiba Inus) footsteps in hopes of becoming as great as him one day! Since she loves Shiba Inu so much, she has decided to create a token that rewards all Sanshu Inu holders with Shiba rewards.

Supply: 1,000,000,000,000
Buy tax: 5
Sell tax: 5
Max tx: 1%
Max Wallet 2%

Telegram: http://t.me/sanshuinuportal
Twitter: https://twitter.com/sanshuinutoken
Website: https://sanshuinu.dog/

***/
// File: @uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol

pragma solidity >=0.5.0;

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

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

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}

// File: @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol

pragma solidity >=0.6.2;

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function removeLiquidity(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETH(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountToken, uint amountETH);
    function removeLiquidityWithPermit(
        address tokenA,
        address tokenB,
        uint liquidity,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountA, uint amountB);
    function removeLiquidityETHWithPermit(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountToken, uint amountETH);
    function swapExactTokensForTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapTokensForExactTokens(
        uint amountOut,
        uint amountInMax,
        address[] calldata path,
        address to,
        uint deadline
    ) external returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        returns (uint[] memory amounts);
    function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);

    function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}

// File: @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol

pragma solidity >=0.6.2;


interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external returns (uint amountETH);
    function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
        address token,
        uint liquidity,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline,
        bool approveMax, uint8 v, bytes32 r, bytes32 s
    ) external returns (uint amountETH);

    function swapExactTokensForTokensSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function swapExactETHForTokensSupportingFeeOnTransferTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external payable;
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol


// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);

    /**
     * @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 `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, 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 `from` to `to` 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 from,
        address to,
        uint256 amount
    ) external returns (bool);
}

// File: @openzeppelin/contracts/utils/Context.sol


// 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;
    }
}

// File: @openzeppelin/contracts/access/Ownable.sol


// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;


/**
 * @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);
    }
}

// File: dividendDistributor.sol

//SPDX-License-Identifier: MIT

pragma solidity ^0.8.14;






pragma solidity ^0.8.7;


interface IDividendDistributor {
    function setDistributionCriteria(
        uint256 _minPeriod,
        uint256 _minDistribution
    ) external;

    function setShare(address shareholder, uint256 amount) external;

    function deposit(uint256 amount) external;

    function process(uint256 gas) external;

    function purge(address receiver) external;
}

contract DividendDistributor is IDividendDistributor {
    address public _token;

    struct Share {
        uint256 amount;
        uint256 totalExcluded;
        uint256 totalRealised;
    }

    IERC20 public REWARD;

    address[] shareholders;
    mapping(address => uint256) shareholderIndexes;
    mapping(address => uint256) shareholderClaims;

    mapping(address => Share) public shares;

    uint256 public totalShares;
    uint256 public totalDividends;
    uint256 public totalDistributed;
    uint256 public dividendsPerShare;
    uint256 public dividendsPerShareAccuracyFactor = 10**36;

    uint256 public minPeriod = 1 * 60;
    uint256 public minDistribution = 1 * (10**3);

    uint256 currentIndex;

    bool initialized;

    modifier onlyToken() {
        require(msg.sender == _token);
        _;
    }

    constructor(address rewardToken) {
        _token = msg.sender;
        REWARD = IERC20(rewardToken);
    }

    receive() external payable {}

    function setDistributionCriteria(
        uint256 _minPeriod,
        uint256 _minDistribution
    ) external override onlyToken {
        minPeriod = _minPeriod;
        minDistribution = _minDistribution;
    }

    function purge(address receiver) external override onlyToken {
        uint256 balance = REWARD.balanceOf(address(this));
        REWARD.transfer(receiver, balance);
    }

    function setShare(address shareholder, uint256 amount)
        external
        override
        onlyToken
    {
        if (shares[shareholder].amount > 0) {
            distributeDividend(shareholder);
        }

        if (amount > 0 && shares[shareholder].amount == 0) {
            addShareholder(shareholder);
        } else if (amount == 0 && shares[shareholder].amount > 0) {
            removeShareholder(shareholder);
        }

        totalShares = (totalShares - (shares[shareholder].amount)) + amount;
        shares[shareholder].amount = amount;
        shares[shareholder].totalExcluded = getCumulativeDividends(
            shares[shareholder].amount
        );
    }

    function deposit(uint256 amount) external override onlyToken {
        totalDividends = totalDividends + amount;
        dividendsPerShare =
            dividendsPerShare +
            ((dividendsPerShareAccuracyFactor * amount) / totalShares);
    }

    function process(uint256 gas) external override onlyToken {
        uint256 shareholderCount = shareholders.length;

        if (shareholderCount == 0) {
            return;
        }

        uint256 gasUsed = 0;
        uint256 gasLeft = gasleft();

        uint256 iterations = 0;

        while (gasUsed < gas && iterations < shareholderCount) {
            if (currentIndex >= shareholderCount) {
                currentIndex = 0;
            }

            if (shouldDistribute(shareholders[currentIndex])) {
                distributeDividend(shareholders[currentIndex]);
            }

            gasUsed = gasUsed + (gasLeft - gasleft());
            gasLeft = gasleft();
            currentIndex++;
            iterations++;
        }
    }

    function shouldDistribute(address shareholder)
        internal
        view
        returns (bool)
    {
        return
            shareholderClaims[shareholder] + minPeriod < block.timestamp &&
            getUnpaidEarnings(shareholder) > minDistribution;
    }

    function distributeDividend(address shareholder) internal {
        if (shares[shareholder].amount == 0) {
            return;
        }

        uint256 amount = getUnpaidEarnings(shareholder);
        if (amount > 0) {
            totalDistributed = totalDistributed + amount;
            REWARD.transfer(shareholder, amount);
            shareholderClaims[shareholder] = block.timestamp;
            shares[shareholder].totalRealised =
                shares[shareholder].totalRealised +
                amount;
            shares[shareholder].totalExcluded = getCumulativeDividends(
                shares[shareholder].amount
            );
        }
    }

    function claimDividend() external {
        distributeDividend(msg.sender);
    }

    function getUnpaidEarnings(address shareholder)
        public
        view
        returns (uint256)
    {
        if (shares[shareholder].amount == 0) {
            return 0;
        }

        uint256 shareholderTotalDividends = getCumulativeDividends(
            shares[shareholder].amount
        );
        uint256 shareholderTotalExcluded = shares[shareholder].totalExcluded;

        if (shareholderTotalDividends <= shareholderTotalExcluded) {
            return 0;
        }

        return shareholderTotalDividends - shareholderTotalExcluded;
    }

    function getHolderDetails(address holder)
        public
        view
        returns (
            uint256 lastClaim,
            uint256 unpaidEarning,
            uint256 totalReward,
            uint256 holderIndex
        )
    {
        lastClaim = shareholderClaims[holder];
        unpaidEarning = getUnpaidEarnings(holder);
        totalReward = shares[holder].totalRealised;
        holderIndex = shareholderIndexes[holder];
    }

    function getCumulativeDividends(uint256 share)
        internal
        view
        returns (uint256)
    {
        return (share * dividendsPerShare) / (dividendsPerShareAccuracyFactor);
    }

    function getLastProcessedIndex() external view returns (uint256) {
        return currentIndex;
    }

    function getNumberOfTokenHolders() external view returns (uint256) {
        return shareholders.length;
    }

    function getShareHoldersList() external view returns (address[] memory) {
        return shareholders;
    }

    function totalDistributedRewards() external view returns (uint256) {
        return totalDistributed;
    }

    function addShareholder(address shareholder) internal {
        shareholderIndexes[shareholder] = shareholders.length;
        shareholders.push(shareholder);
    }

    function removeShareholder(address shareholder) internal {
        shareholders[shareholderIndexes[shareholder]] = shareholders[
            shareholders.length - 1
        ];
        shareholderIndexes[
            shareholders[shareholders.length - 1]
        ] = shareholderIndexes[shareholder];
        shareholders.pop();

        delete shareholderIndexes[shareholder];
    }
}

contract Sanshu is IERC20, Ownable {
    address DEAD = 0x000000000000000000000000000000000000dEaD;
    address ZERO = 0x0000000000000000000000000000000000000000;

    address public REWARD = 0x95aD61b0a150d79219dCF64E1E6Cc01f0B64C4cE; // ShibInu

    string constant _name = "Sanshu Inu";
    string constant _symbol = "Sanshu";
    uint8 constant _decimals = 9;

    uint256 _totalSupply = 1000000000000 * (10**_decimals); 
    mapping(address => uint256) _balances;
    mapping(address => mapping(address => uint256)) _allowances;

    mapping(address => bool) public isFeeExempt;
    mapping(address => bool) public isDividendExempt;
    mapping(address => bool) public isBlacklisted;
    mapping(address => bool) public isMaxBuyLimitExcluded;
    mapping(address => bool) public isMaxSellLimitExcluded;
    mapping(address => bool) public isAuthorized;

    address public marketingWallet;
    address public buyBackWallet;
    address public lpReceiver;

    // Fees
    uint256 public rewardFee = 1;

    uint256 public buyLiquidityFee = 1;
    uint256 public buyBuyBackFee = 1;
    uint256 public buyMarketingFee = 2;
    uint256 public buyTotalFee = 5;

    uint256 public sellLiquidityFee = 1;
    uint256 public sellBuyBackFee = 1;
    uint256 public sellMarketingFee = 8;
    uint256 public sellTotalFee = 10;

    uint256 public swapLiquidityFee = 1;
    uint256 public swapBuyBackFee = 1;
    uint256 public swapMarketingFee = 2;
    uint256 public swapTotalFee = 4;

    IUniswapV2Router02 public router;
    address public pair;

    DividendDistributor public dividendTracker;

    uint256 distributorGas = 500000;

    uint256 public maxSellLimit = 0;
    uint256 public maxBuyLimit = 0;

    bool public isSellCoolDownEnabled = true;
    uint256 public sellCoolDownTime = 15 minutes;

    uint256 public lastSwapTime;

    uint256 public swapThreshold = (_totalSupply * 1) / 10000; // 0.001% of supply
    bool public contractSwapEnabled = true;
    bool public isTradeEnabled = false;
    bool inContractSwap;
    modifier swapping() {
        inContractSwap = true;
        _;
        inContractSwap = false;
    }

    event SetIsDividendExempt(address holder, bool status);
    event SetIsFeeExempt(address holder, bool status);
    event AddAuthorizedWallet(address holder, bool status);
    event SetDoContractSwap(bool status);
    event DoContractSwap(uint256 amount, uint256 time);
    event ChangeDistributionCriteria(
        uint256 minPeriod,
        uint256 minDistribution
    );

    event AutoLiquify(uint256 amountBNB, uint256 amountBOG);

    constructor() {
        router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        pair = IUniswapV2Factory(router.factory()).createPair(
            router.WETH(),
            address(this)
        );
        _allowances[address(this)][address(router)] = type(uint256).max;

        dividendTracker = new DividendDistributor(REWARD);

        marketingWallet = 0xd28e68C8bc7DCb231f39BC0B395BF0D1cf961b1D;
        buyBackWallet = 0xd28e68C8bc7DCb231f39BC0B395BF0D1cf961b1D;
        lpReceiver = 0xd28e68C8bc7DCb231f39BC0B395BF0D1cf961b1D;

        address deployer = 0xd28e68C8bc7DCb231f39BC0B395BF0D1cf961b1D;

        isFeeExempt[deployer] = true;
        isFeeExempt[address(this)] = true;
        isFeeExempt[marketingWallet] = true;
        isFeeExempt[buyBackWallet] = true;
        isFeeExempt[lpReceiver] = true;

        isDividendExempt[deployer] = true;
        isDividendExempt[pair] = true;
        isDividendExempt[address(this)] = true;
        isDividendExempt[ZERO] = true;
        isDividendExempt[DEAD] = true;
        isDividendExempt[lpReceiver] = true;
        isDividendExempt[buyBackWallet] = true;
        isDividendExempt[marketingWallet] = true;

        isAuthorized[deployer] = true;
        isAuthorized[pair] = true;
        isAuthorized[address(this)] = true;
        isAuthorized[ZERO] = true;
        isAuthorized[DEAD] = true;
        isAuthorized[lpReceiver] = true;
        isAuthorized[buyBackWallet] = true;
        isAuthorized[marketingWallet] = true;

        isMaxBuyLimitExcluded[deployer] = true;
        isMaxSellLimitExcluded[deployer] = true;

        _balances[deployer] = _totalSupply;
        emit Transfer(address(0), deployer, _totalSupply);
    }

    receive() external payable {}

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

    function name() public pure returns (string memory) {
        return _name;
    }

    function symbol() public pure returns (string memory) {
        return _symbol;
    }

    function decimals() public pure returns (uint8) {
        return _decimals;
    }

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

    function getHolderDetails(address holder)
        public
        view
        returns (
            uint256,
            uint256,
            uint256,
            uint256
        )
    {
        return dividendTracker.getHolderDetails(holder);
    }

    function getLastProcessedIndex() public view returns (uint256) {
        return dividendTracker.getLastProcessedIndex();
    }

    function getNumberOfTokenHolders() public view returns (uint256) {
        return dividendTracker.getNumberOfTokenHolders();
    }

    function totalDistributedRewards() public view returns (uint256) {
        return dividendTracker.totalDistributedRewards();
    }

    function allowance(address holder, address spender)
        external
        view
        override
        returns (uint256)
    {
        return _allowances[holder][spender];
    }

    function approve(address spender, uint256 amount)
        public
        override
        returns (bool)
    {
        _allowances[msg.sender][spender] = amount;
        emit Approval(msg.sender, spender, amount);
        return true;
    }

    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 approveMax(address spender) external returns (bool) {
        return approve(spender, type(uint256).max);
    }

    function transfer(address recipient, uint256 amount)
        external
        override
        returns (bool)
    {
        return _transferFrom(msg.sender, recipient, amount);
    }

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external override returns (bool) {
        if (_allowances[sender][msg.sender] != type(uint256).max) {
            require(
                _allowances[sender][msg.sender] >= amount,
                "Insufficient Allowance"
            );
            _allowances[sender][msg.sender] =
                _allowances[sender][msg.sender] -
                amount;
        }

        return _transferFrom(sender, recipient, amount);
    }

    function _transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) internal returns (bool) {
        require(
            !isBlacklisted[sender] && !isBlacklisted[recipient],
            "Blacklisted users"
        );
        if (!isTradeEnabled) require(isAuthorized[sender], "Trading disabled");
        if (inContractSwap) {
            return _basicTransfer(sender, recipient, amount);
        }

        if (shouldDoContractSwap()) {
            doContractSwap();
        }
        {
            if (
                sender == pair &&
                !isMaxBuyLimitExcluded[recipient] &&
                maxBuyLimit != 0
            ) require(amount <= maxBuyLimit, "Max buy limit exceeded");

            if (
                recipient == pair &&
                !isMaxSellLimitExcluded[sender] &&
                maxSellLimit != 0
            ) require(amount <= maxSellLimit, "Max sell limit exceeded");
        }

        require(_balances[sender] >= amount, "Insufficient Balance");
        _balances[sender] = _balances[sender] - amount;

        uint256 amountReceived = shouldTakeFee(sender, recipient)
            ? takeFee(sender, recipient, amount)
            : amount;
        _balances[recipient] = _balances[recipient] + amountReceived;

        if (!isDividendExempt[sender]) {
            try dividendTracker.setShare(sender, _balances[sender]) {} catch {}
        }

        if (!isDividendExempt[recipient]) {
            try
                dividendTracker.setShare(recipient, _balances[recipient])
            {} catch {}
        }

        try dividendTracker.process(distributorGas) {} catch {}

        emit Transfer(sender, recipient, amountReceived);
        return true;
    }

    function takeFee(
        address sender,
        address recipient,
        uint256 amount
    ) internal returns (uint256) {
        uint256 feeToken;

        if (recipient == pair) feeToken = (amount * sellTotalFee) / 100;
        else feeToken = (amount * buyTotalFee) / 100;

        _balances[address(this)] = _balances[address(this)] + feeToken;
        emit Transfer(sender, address(this), feeToken);

        return (amount - feeToken);
    }

    function _basicTransfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal returns (bool) {
        require(_balances[sender] >= amount, "Insufficient Balance");
        _balances[sender] = _balances[sender] - amount;

        _balances[recipient] = _balances[recipient] + amount;
        emit Transfer(sender, recipient, amount);
        return true;
    }

    function shouldTakeFee(address sender, address to)
        internal
        view
        returns (bool)
    {
        if (isFeeExempt[sender] || isFeeExempt[to]) {
            return false;
        } else {
            return true;
        }
    }

    function shouldDoContractSwap() internal view returns (bool) {
        return (msg.sender != pair &&
            !inContractSwap &&
            contractSwapEnabled &&
            (lastSwapTime + sellCoolDownTime) <= block.timestamp &&
            _balances[address(this)] >= swapThreshold);
    }

    // Claim manually
    function ___claimRewards(bool tryAll) public {
        dividendTracker.claimDividend();
        if (tryAll) {
            try dividendTracker.process(distributorGas) {} catch {}
        }
    }

    // Clear the queue manually
    function claimProcess() public {
        try dividendTracker.process(distributorGas) {} catch {}
    }

    function isRewardExcluded(address _wallet) public view returns (bool) {
        return isDividendExempt[_wallet];
    }

    function isFeeExcluded(address _wallet) public view returns (bool) {
        return isFeeExempt[_wallet];
    }

    function doContractSwap() internal swapping {
        uint256 contractTokenBalance = _balances[address(this)];

        uint256 tokensToLp = (contractTokenBalance * swapLiquidityFee) /
            swapTotalFee;
        uint256 tokensToReward = (contractTokenBalance * rewardFee) /
            swapTotalFee;

        uint256 buyBackAndMarketingFee = swapBuyBackFee + swapMarketingFee;

        uint256 tokensToSwap = contractTokenBalance -
            tokensToLp -
            tokensToReward;

        if (tokensToReward > 0) {
            swapTokensForTokens(tokensToReward, REWARD);

            uint256 swappedRewardTokens = IERC20(REWARD).balanceOf(
                address(this)
            );
            IERC20(REWARD).transfer(
                address(dividendTracker),
                swappedRewardTokens
            );
            try dividendTracker.deposit(swappedRewardTokens) {} catch {}
        }
        if (tokensToSwap > 0 && buyBackAndMarketingFee > 0) {
            swapTokensForEth(tokensToSwap);

            uint256 swappedTokens = address(this).balance;

            uint256 tokensForMarketing = (swappedTokens * swapMarketingFee) /
                buyBackAndMarketingFee;

            uint256 tokensForBuyBack = swappedTokens - tokensForMarketing;

            if (tokensForMarketing > 0)
                payable(marketingWallet).transfer(tokensForMarketing);

            if (tokensForBuyBack > 0)
                payable(buyBackWallet).transfer(tokensForBuyBack);
        }

        if (tokensToLp > 0) swapAndLiquify(tokensToLp);

        lastSwapTime = block.timestamp;
    }

    // All tax wallets receive BUSD instead of BNB
    function swapTokensForTokens(uint256 tokenAmount, address tokenToSwap)
        private
    {
        address[] memory path = new address[](3);
        path[0] = address(this);
        path[1] = router.WETH();
        path[2] = tokenToSwap;
        _approve(address(this), address(router), tokenAmount);
        router.swapExactTokensForTokensSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of tokens
            path,
            address(this),
            block.timestamp
        );
    }

    function swapAndLiquify(uint256 tokens) private {
        // split the contract balance into halves
        uint256 half = tokens / 2;
        uint256 otherHalf = tokens - half;

        // capture the contract's current ETH balance.
        // this is so that we can capture exactly the amount of ETH that the
        // swap creates, and not make the liquidity event include any ETH that
        // has been manually sent to the contract
        uint256 initialBalance = address(this).balance;

        // swap tokens for ETH
        swapTokensForEth(half); // <- this breaks the ETH -> HATE swap when swap+liquify is triggered

        // how much ETH did we just swap into?
        uint256 newBalance = address(this).balance - initialBalance;

        // add liquidity to uniswap
        addLiquidity(otherHalf, newBalance);

        emit AutoLiquify(newBalance, otherHalf);
    }

    function swapTokensForEth(uint256 tokenAmount) private {
        // generate the uniswap pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = router.WETH();
        _approve(address(this), address(router), tokenAmount);
        // make the swap
        router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
    }

    function addLiquidity(uint256 tokenAmount, uint256 bnbAmount) private {
        _approve(address(this), address(router), tokenAmount);

        // add the liquidity
        router.addLiquidityETH{value: bnbAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            lpReceiver,
            block.timestamp
        );
    }

    function setIsDividendExempt(address holder, bool exempt)
        external
        onlyOwner
    {
        require(
            holder != address(this) && holder != pair,
            "can not add pair and token address as share holder"
        );
        isDividendExempt[holder] = exempt;
        if (exempt) {
            dividendTracker.setShare(holder, 0);
        } else {
            dividendTracker.setShare(holder, _balances[holder]);
        }

        emit SetIsDividendExempt(holder, exempt);
    }

    function setIsFeeExempt(address holder, bool exempt) external onlyOwner {
        isFeeExempt[holder] = exempt;

        emit SetIsFeeExempt(holder, exempt);
    }

    function setDoContractSwap(bool _enabled) external onlyOwner {
        contractSwapEnabled = _enabled;

        emit SetDoContractSwap(_enabled);
    }

    function blackListWallets(address _wallet, bool _status)
        external
        onlyOwner
    {
        isBlacklisted[_wallet] = _status;
    }

    function setDistributionCriteria(
        uint256 _minPeriod,
        uint256 _minDistribution
    ) external onlyOwner {
        dividendTracker.setDistributionCriteria(_minPeriod, _minDistribution);

        emit ChangeDistributionCriteria(_minPeriod, _minDistribution);
    }

    function setDistributorSettings(uint256 gas) external onlyOwner {
        require(gas < 750000);
        distributorGas = gas;
    }

    function changeMarketingWallet(address _wallet) external onlyOwner {
        marketingWallet = _wallet;
    }

    function changeBuyBackWallet(address _wallet) external onlyOwner {
        buyBackWallet = _wallet;
    }

    function changeLPWallet(address _wallet) external onlyOwner {
        lpReceiver = _wallet;
    }

    function changeBuyFees(
        uint256 _liquidityFee,
        uint256 _buyBackFee,
        uint256 _marketingFee
    ) external onlyOwner {
        buyLiquidityFee = _liquidityFee;
        buyBuyBackFee = _buyBackFee;
        buyMarketingFee = _marketingFee;

        buyTotalFee = rewardFee + _liquidityFee + _buyBackFee + _marketingFee;

        require(buyTotalFee <= 15, "Total fees can not greater than 15%");
    }

    function changeSellFees(
        uint256 _liquidityFee,
        uint256 _buyBackFee,
        uint256 _marketingFee
    ) external onlyOwner {
        sellLiquidityFee = _liquidityFee;
        sellBuyBackFee = _buyBackFee;
        sellMarketingFee = _marketingFee;

        sellTotalFee = rewardFee + _liquidityFee + _buyBackFee + _marketingFee;

        require(sellTotalFee <= 15, "Total fees can not greater than 15%");
    }

    function changeSwapFees(
        uint256 _liquidityFee,
        uint256 _buyBackFee,
        uint256 _marketingFee
    ) external onlyOwner {
        swapLiquidityFee = _liquidityFee;
        swapBuyBackFee = _buyBackFee;
        swapMarketingFee = _marketingFee;

        swapTotalFee = rewardFee + _liquidityFee + _buyBackFee + _marketingFee;

        require(swapTotalFee <= 15, "Total fees can not greater than 15%");
    }

    function setSellCollDown(bool _status, uint256 _coolDownTime)
        external
        onlyOwner
    {
        isSellCoolDownEnabled = _status;
        sellCoolDownTime = _coolDownTime;
    }

    function changeSellLimit(uint256 _limit) external onlyOwner {
        if (_limit > 0)
            require(
                _limit >= 100 * 10**6 * 10**_decimals,
                "Limit can not less than 250 million"
            );

        maxSellLimit = _limit;
    }

    function changeBuyLimit(uint256 _limit) external onlyOwner {
        if (_limit > 0)
            require(
                _limit >= 100 * 10**6 * 10**_decimals,
                "Limit can not less than 250 million"
            );
        maxBuyLimit = _limit;
    }

    function excludeFromMaxSell(address _wallet, bool _status)
        external
        onlyOwner
    {
        isMaxSellLimitExcluded[_wallet] = _status;
    }

    function excludeFromMaxBuy(address _wallet, bool _status)
        external
        onlyOwner
    {
        isMaxBuyLimitExcluded[_wallet] = _status;
    }

    function enableTrading() external onlyOwner {
        isTradeEnabled = true;
    }

    function setAuthorizedWallets(address _wallet, bool _status)
        external
        onlyOwner
    {
        isAuthorized[_wallet] = _status;
    }

    function rescueEth() external onlyOwner {
        uint256 balance = address(this).balance;
        require(balance > 0, "No enough ETH to transfer");

        payable(msg.sender).transfer(balance);
    }

    function purgeBeforeSwitch() public onlyOwner {
        dividendTracker.purge(msg.sender);
    }

    function depositRewards(uint256 _rewardAmount) external onlyOwner {
        IERC20(REWARD).transferFrom(
            msg.sender,
            address(dividendTracker),
            _rewardAmount
        );

        try dividendTracker.deposit(_rewardAmount) {} catch {}
    }
}