// File: /contracts/Degen.sol





//SPDX-License-Identifier: Unlicensed
pragma solidity ^0.8.17;

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

    function _msgData() internal view virtual returns (bytes calldata) {
        this;
        return msg.data;
    }
}

interface IUniswapV2Pair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external pure returns (string memory);

    function symbol() external pure returns (string memory);
    function decimals() external pure returns (uint8);
    function totalSupply() external view returns (uint);
    function balanceOf(address owner) external view returns (uint);
    function allowance(address owner, address spender) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);
    function transfer(address to, uint value) external returns (bool);
    function transferFrom(address from, address to, uint value) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);
    function PERMIT_TYPEHASH() external pure returns (bytes32);
    function nonces(address owner) external view returns (uint);

    function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

    event Mint(address indexed sender, uint amount0, uint amount1);
    event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint);

    function factory() external view returns (address);
    function token0() external view returns (address);
    function token1() external view returns (address);
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
    function price0CumulativeLast() external view returns (uint);
    function price1CumulativeLast() external view returns (uint);

    function kLast() external view returns (uint);

    function mint(address to) external returns (uint liquidity);
    function burn(address to) external returns (uint amount0, uint amount1);
    function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
    function skim(address to) external;
    function sync() external;

    function initialize(address, address) external;
}

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;
}
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 IERC20Metadata is IERC20 {

     function name() external view returns (string memory);


    function symbol() external view returns (string memory);


    function decimals() external view returns (uint8);
}

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 9;
    }


    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 {}

}

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) {

        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;

        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;
    }
}

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;
    }
}

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;


        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) {

        require(b != -1 || a != MIN_INT256);


        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;
  }
}

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);
}

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;
}

contract Degen is ERC20, Ownable {
    using SafeMath for uint256;

    IUniswapV2Router02 public immutable uniswapV2Router;
    address public immutable uniswapV2Pair;
    address public constant deadAddress = address(0xdead);

    address public marketingWallet;
    address public yearbookWallet;
    address public buybackWallet;
    address public liquidityWallet;
    address public lpLocker;

    uint256 public maxTransactionAmount;
    uint256 public swapTokensAtAmount;
    uint256 public maxWallet;

    bool public swapEnabled;
    bool private internalSwap;

    uint256 public buyTotalFees;
    uint256 public buyMarketingFee;
    uint256 public buyYearbookFee;
    uint256 public buyBuybackFee;
    uint256 public buyLiquidityFee;
    uint256 public buyBurnFee;

    uint256 public sellTotalFees;
    uint256 public sellMarketingFee;
    uint256 public sellYearbookFee;
    uint256 public sellBuybackFee;
    uint256 public sellLiquidityFee;
    uint256 public sellBurnFee;

    uint256 public transferFee;

    uint256 public tokensForMarketing;
    uint256 public tokensForYearbook;
    uint256 public tokensForBuyback;
    uint256 public tokensForLiquidity;
    uint256 public tokensForBurn;

    /******************/

    mapping (address => bool) private _isExcludedFromFees;
    mapping (address => bool) public _isExcludedMaxTransactionAmount;
    mapping (address => bool) public automatedMarketMakerPairs;
    mapping (address => bool) private moose;

    event UpdateUniswapV2Router(address indexed newAddress, address indexed oldAddress);

    event ExcludeFromFees(address indexed account, bool isExcluded);

    event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);

    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiquidity
    );

    event BuyBackTriggered(uint256 amount);

    constructor() ERC20("Degen", "DEGEN") {

        marketingWallet = address(0x72228999901126DAa9852D9348328F23eb39c26e);
    	yearbookWallet = address(0xe8baEF4a691caD4d7B161327819EC0E638De10ca);
        buybackWallet = address(0xFB676353a156d26C98fC1130672967d0649F3744);
        liquidityWallet = address(0x57ec73e6867aB575B002A1049851902a747A76E2);
        lpLocker = address(0x663A5C229c09b049E36dCc11a9B0d4a8Eb9db214);


        //Setup the liquidity pool
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        uniswapV2Router = _uniswapV2Router;
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
        _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);


        //default fees
        swapEnabled = true;
        buyMarketingFee = 10;
        buyYearbookFee = 10;
        buyBuybackFee = 10;
        buyLiquidityFee = 0;
        buyBurnFee = 0;
        buyTotalFees = buyMarketingFee + buyYearbookFee + buyBuybackFee + buyLiquidityFee + buyBurnFee;

        sellMarketingFee = 20;
        sellYearbookFee = 20;
        sellBuybackFee = 20;
        sellLiquidityFee = 0;
        sellBurnFee = 0;
        sellTotalFees = sellMarketingFee + sellYearbookFee + sellBuybackFee + sellLiquidityFee + sellBurnFee;

        transferFee = 99;

        excludeFromFees(address(owner()), true);
        excludeFromFees(address(this), true);
        excludeFromFees(address(0xdead), true);
        excludeFromFees(marketingWallet, true);
        excludeFromFees(yearbookWallet, true);
        excludeFromFees(buybackWallet, true);
        excludeFromFees(liquidityWallet, true);
        excludeFromFees(lpLocker, true);

        excludeFromMaxTransaction(address(owner()), true);
        excludeFromMaxTransaction(address(this), true);
        excludeFromMaxTransaction(address(0xdead), true);
        excludeFromMaxTransaction(marketingWallet, true);
        excludeFromMaxTransaction(yearbookWallet, true);
        excludeFromMaxTransaction(buybackWallet, true);
        excludeFromMaxTransaction(liquidityWallet, true);
        excludeFromMaxTransaction(lpLocker, true);
        excludeFromMaxTransaction(address(_uniswapV2Router), true);
        excludeFromMaxTransaction(address(uniswapV2Pair), true);


        //1 billion tokens, 9 decimals
        uint256 totalSupply = 1 * 1e9 * 1e9;

        maxTransactionAmount = totalSupply * 1 / 100;
        swapTokensAtAmount = totalSupply * 5 / 10000;
        maxWallet = totalSupply * 1 / 100;

        //the only mint that will ever be
        _mint(address(owner()), totalSupply);

    }

    receive() external payable {

  	}

    function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner returns (bool){
  	    require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply.");
  	    require(newAmount <= totalSupply() * 5 / 1000, "Swap amount cannot be higher than 0.5% total supply.");
  	    swapTokensAtAmount = newAmount;
  	    return true;
  	}

    function updateMaxAmount(uint256 newNum) external onlyOwner {
        require(newNum >= (totalSupply() * 5 / 1000)/1e9, "Cannot set maxTransactionAmount lower than 0.5%");
        maxTransactionAmount = newNum * (10**18);
    }

    function excludeFromMaxTransaction(address updAds, bool isEx) public onlyOwner {
        _isExcludedMaxTransactionAmount[updAds] = isEx;
    }

    function updateSwapEnabled(bool enabled) external onlyOwner(){
        swapEnabled = enabled;
    }

    function updateBuyFees(uint256 _marketingFee, uint256 _yearbookFee, uint256 _buybackFee, uint256 _liquidityFee, uint256 _burnFee) external onlyOwner {
        buyMarketingFee = _marketingFee;
        buyYearbookFee = _yearbookFee;
        buyBuybackFee = _buybackFee;
        buyLiquidityFee = _liquidityFee;
        buyBurnFee = _burnFee;
        buyTotalFees = buyMarketingFee + buyYearbookFee + buyBuybackFee + buyLiquidityFee + buyBurnFee;
        require(buyTotalFees <= 99, "Must keep fees at 99% or less");
    }

    function updateSellFees(uint256 _marketingFee, uint256 _yearbookFee, uint256 _buybackFee, uint256 _liquidityFee, uint256 _burnFee) external onlyOwner {
        sellMarketingFee = _marketingFee;
        sellYearbookFee = _yearbookFee;
        sellBuybackFee = _buybackFee;
        sellLiquidityFee = _liquidityFee;
        sellBurnFee = _burnFee;
        sellTotalFees = sellMarketingFee + sellYearbookFee + sellBuybackFee + sellLiquidityFee + sellBurnFee;
        require(sellTotalFees <= 99, "Must keep fees at 99% or less");
    }

    function updateTransferFee(uint256 _transferFee) external onlyOwner {
        transferFee = _transferFee;
        require(transferFee <= 99, "Must keep transfer fees at 99% or less");
    }

    function removeLimits() external onlyOwner {
        maxTransactionAmount = totalSupply();
        maxWallet = totalSupply();
    }

    function excludeFromFees(address account, bool excluded) public onlyOwner {
        _isExcludedFromFees[account] = excluded;
        emit ExcludeFromFees(account, excluded);
    }

    function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner {
        require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs");
        _setAutomatedMarketMakerPair(pair, value);
    }

    function _setAutomatedMarketMakerPair(address pair, bool value) private {
        automatedMarketMakerPairs[pair] = value;
        emit SetAutomatedMarketMakerPair(pair, value);
    }

    function addMoose(address[] calldata _moose) external onlyOwner {
        for(uint i = 0; i < _moose.length; i++){
            moose[_moose[i]] = true;
        }
    }

    function removeMoose(address[] calldata _moose) external onlyOwner {
        for(uint i = 0; i < _moose.length; i++){
            moose[_moose[i]] = false;
        }
    }

    function updateMarketingWallet(address newMarketingWallet) external onlyOwner {
        marketingWallet = newMarketingWallet;
    }

    function updateYearbookWallet(address newYearbookWallet) external onlyOwner {
        yearbookWallet = newYearbookWallet;
    }

    function updateBuybackWallet(address newBuybackWallet) external onlyOwner {
        buybackWallet = newBuybackWallet;
    }

    function updateLiquidityWallet(address newLiquidityWallet) external onlyOwner {
        liquidityWallet = newLiquidityWallet;
    }

    function isExcludedFromFees(address account) public view returns(bool) {
        return _isExcludedFromFees[account];
    }

    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;
        }

        //check for moose
        require(!moose[to] && !moose[from], "You look like a moose!");

        //check transaction limits
        if (
            from != owner() &&
            to != owner() &&
            to != address(0) &&
            to != address(0xdead) &&
            !internalSwap
        ){
            //when buy
            if (automatedMarketMakerPairs[from] && !_isExcludedMaxTransactionAmount[to]) {
                require(amount <= maxTransactionAmount, "Buy transfer amount exceeds the maxTransactionAmount.");
                require(amount + balanceOf(to) <= maxWallet, "Max wallet exceeded");
            }
            //when sell
            else if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) {
                require(amount <= maxTransactionAmount, "Sell transfer amount exceeds the maxTransactionAmount.");
            }
            else if (!_isExcludedMaxTransactionAmount[to]){
                require(amount + balanceOf(to) <= maxWallet, "Max wallet exceeded");
            }
        }

		uint256 contractTokenBalance = balanceOf(address(this));
        bool canSwap = contractTokenBalance >= swapTokensAtAmount;

        //swaps token for eth then sends eth to marketing + liquidity
        if(
            canSwap &&
            swapEnabled &&
            !internalSwap &&
            !automatedMarketMakerPairs[from] &&
            !_isExcludedFromFees[from] &&
            !_isExcludedFromFees[to]
        ) {
            internalSwap = true;
            doInternalSwap();
            internalSwap = false;
        }

        bool takeFee = !internalSwap;

        if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
            takeFee = false;
        }

        // only take fees on buys/sells, do not take on wallet transfers
        uint256 fees = 0;
        if(takeFee){
            //Sell
            if (automatedMarketMakerPairs[to] && sellTotalFees > 0){
                fees = amount.mul(sellTotalFees).div(100);
                tokensForMarketing += fees * sellMarketingFee / sellTotalFees;
                tokensForYearbook += fees * sellYearbookFee / sellTotalFees;
                tokensForBuyback += fees * sellBuybackFee / sellTotalFees;
                tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees;
                tokensForBurn += fees * sellBurnFee / sellTotalFees;
            }
            //Buy
            else if(automatedMarketMakerPairs[from] && buyTotalFees > 0) {
        	    fees = amount.mul(buyTotalFees).div(100);
                tokensForMarketing += fees * buyMarketingFee / buyTotalFees;
                tokensForYearbook += fees * buyYearbookFee / buyTotalFees;
                tokensForBuyback += fees * buyBuybackFee / buyTotalFees;
                tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees;
                tokensForBurn += fees * buyBurnFee / buyTotalFees;
            }
            //Transfer
            else if(transferFee > 0){
                fees = amount.mul(transferFee).div(100);
                tokensForYearbook += fees;
            }

            if(fees > 0){
                super._transfer(from, address(this), (fees - tokensForBurn));
            }

            if(tokensForBurn > 0){
                _burn(from, tokensForBurn);
                tokensForBurn = 0;
            }

        	amount -= fees;
        }

        super._transfer(from, to, amount);

    }

    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] = uniswapV2Router.WETH();

        _approve(address(this), address(uniswapV2Router), tokenAmount);

        // make the swap
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            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,
            0,
            liquidityWallet,
            block.timestamp
        );

    }

    function doInternalSwap() private {

        uint256 contractBalance = balanceOf(address(this));
        uint256 totalTokensToSwap = tokensForMarketing + tokensForYearbook + tokensForBuyback + tokensForLiquidity;

        if(contractBalance == 0 || totalTokensToSwap == 0) {return;}

        uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap / 2;
        uint256 amountToSwapForETH = contractBalance.sub(liquidityTokens);
        uint256 initialETHBalance = address(this).balance;

        swapTokensForEth(amountToSwapForETH);

        uint256 ethBalance = address(this).balance.sub(initialETHBalance);
        uint256 ethForMarketing = ethBalance.mul(tokensForMarketing).div(totalTokensToSwap);
        uint256 ethForYearbook = ethBalance.mul(tokensForYearbook).div(totalTokensToSwap);
        uint256 ethForBuyback = ethBalance.mul(tokensForBuyback).div(totalTokensToSwap);

        uint256 ethForLiquidity = ethBalance - (ethForMarketing + ethForYearbook + ethForBuyback);

        tokensForMarketing = 0;
        tokensForYearbook = 0;
        tokensForBuyback = 0;
        tokensForLiquidity = 0;

        (bool success,) = address(marketingWallet).call{value: ethForMarketing}("");
        (success,) = address(yearbookWallet).call{value: ethForYearbook}("");
        (success,) = address(buybackWallet).call{value: ethForBuyback}("");

        if(liquidityTokens > 0 && ethForLiquidity > 0){
            addLiquidity(liquidityTokens, ethForLiquidity);
            emit SwapAndLiquify(amountToSwapForETH, ethForLiquidity, tokensForLiquidity);
        }

        (success,) = address(yearbookWallet).call{value: address(this).balance}("");
    }

}