// SPDX-License-Identifier: Unlicensed

/*
    Autoburn Machina - SMART CONTRACT MAGIC

    The Perpetual Self-Pumping Token
    You might ask: "Why such high fees?". Well, every single bit of the fees go back into liquidity 
    and buybacks burns. These liquidity injections and buy back burns end up pumping the bags of holders 
    exponentially. All of this is done through the smart contract. Let's grab some popcorn and watch our 
    bags pump exponentially through smart contract magic.

    Trustless Safe Launch
    It was crucial for us to ensure that the Autoburn Machina launch was completely SAFE and all safety measures 
    were built into the smart contract. Through smart contract mechanics, liquidity tokens are automatically 
    locked into the contract on launch. To unlock lp tokens, the dev needs to run requestToWithdrawLP() in 
    the smart contract to request a unlock. 14 days after this request is made the tokens can be unlocked. 
    Additionally all smart contract functions were audited and built with approriate safeguards and limits to 
    ensure that there is absolutely no honeypot functions. We wanted to make sure that this is a trustless 
    stress-free moonride for all holders.


    https://autoburnmachina.com/
    https://t.me/AutoburnMachina

*/

import "@openzeppelin/contracts/token/ERC20/ERC20.sol"; 
import "@openzeppelin/contracts/token/ERC20/IERC20.sol"; 
import "@openzeppelin/contracts/access/Ownable.sol"; 
import "@openzeppelin/contracts/utils/math/SafeMath.sol"; 

pragma solidity ^0.8.16;

interface IDexRouter {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function swapExactTokensForETHSupportingFeeOnTransferTokens(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 addLiquidityETH(address token, uint256 amountTokenDesired, uint256 amountTokenMin, uint256 amountETHMin, address to, uint256 deadline) external payable returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
    function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
    function removeLiquidityETH(address token, uint liquidity, uint amountTokenMin, uint amountETHMin, address to, uint deadline) external returns (uint amountToken, uint amountETH);
}

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

contract AutoburnMachina is ERC20, Ownable {

    uint256 public maxBuyAmount;
    uint256 public maxSellAmount;
    uint256 public maxWallet;

    IDexRouter public dexRouter;
    address public lpPair;

    bool private swapping;
    uint256 public swapTokensAtAmount;

    address public buybackAddress;

    uint256 public tradingActiveBlock = 0; // 0 means trading is not active
    uint256 public blockForPenaltyEnd;
    mapping (address => bool) public boughtEarly;
    address[] public earlyBuyers;
    uint256 public botsCaught;

    bool public limitsInEffect = true;
    bool public tradingActive = false;
    bool public swapEnabled = false;
    
     // Anti-bot and anti-whale mappings and variables
    mapping(address => uint256) private _holderLastTransferTimestamp; // to hold last Transfers temporarily during launch
    bool public transferDelayEnabled = true;

    uint256 public buyTotalFees;
    uint256 public buyBuybackFee;
    uint256 public buyLiquidityFee;
    uint256 public buyBurnFee;

    uint256 public sellTotalFees;
    uint256 public sellBuybackFee;
    uint256 public sellLiquidityFee;
    uint256 public sellBurnFee;

    uint256 public constant FEE_DIVISOR = 10000;

    uint256 public tokensForBuyback;
    uint256 public tokensForLiquidity;

    uint256 public lpWithdrawRequestTimestamp;
    uint256 public lpWithdrawRequestDuration = 14 days;
    bool public lpWithdrawRequestPending;
    uint256 public lpPercToWithDraw;

    uint256 public percentForLPBurn = 5; // 5 = .05%
    bool public lpBurnEnabled = false;
    uint256 public lpBurnFrequency = 1800 seconds;
    uint256 public lastLpBurnTime;
    
    uint256 public manualBurnFrequency = 30 seconds;
    uint256 public lastManualLpBurnTime;
    
    /******************/

    // exlcude from fees and max transaction amount
    mapping (address => bool) private _isExcludedFromFees;
    mapping (address => bool) public _isExcludedMaxTransactionAmount;

    // store addresses that a automatic market maker pairs. Any transfer *to* these addresses
    // could be subject to a maximum transfer amount
    mapping (address => bool) public automatedMarketMakerPairs;

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

    event EnabledTrading();

    event RemovedLimits();

    event ExcludeFromFees(address indexed account, bool isExcluded);

    event UpdatedMaxBuyAmount(uint256 newAmount);

    event UpdatedMaxSellAmount(uint256 newAmount);

    event UpdatedMaxWalletAmount(uint256 newAmount);

    event UpdatedBuybackAddress(address indexed newWallet);

    event UpdatedDevAddress(address indexed newWallet);

    event MaxTransactionExclusion(address _address, bool excluded);

    event OwnerForcedSwapBack(uint256 timestamp);

    event CaughtEarlyBuyer(address sniper);

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

    event AutoBurnLP(uint256 indexed tokensBurned);

    event ManualBurnLP(uint256 indexed tokensBurned);

    event TransferForeignToken(address token, uint256 amount);

    event RequestedLPWithdraw();
    
    event WithdrewLPForMigration();

    event CanceledLpWithdrawRequest();

    constructor() ERC20("Autoburn Machina", "ABM") payable {
        
        address newOwner = msg.sender; // can leave alone if owner is deployer.
        address _dexRouter;

        _dexRouter = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;

        // initialize router
        dexRouter = IDexRouter(_dexRouter);

        uint256 totalSupply = 1 * 1e8 * (10 ** decimals());
        
        maxBuyAmount = totalSupply * 1 / 100;
        maxSellAmount = totalSupply * 1 / 100;
        maxWallet = totalSupply * 1 / 100;
        swapTokensAtAmount = totalSupply * 25 / 100000;

        buyBuybackFee = 0;
        buyLiquidityFee = 300;
        buyBurnFee = 500;
        buyTotalFees = buyBuybackFee + buyLiquidityFee + buyBurnFee;

        sellBuybackFee = 0;
        sellLiquidityFee = 300;
        sellBurnFee = 500;
        sellTotalFees = sellBuybackFee + sellLiquidityFee + sellBurnFee;

        buybackAddress = address(msg.sender);

        _excludeFromMaxTransaction(newOwner, true);
        _excludeFromMaxTransaction(address(this), true);
        _excludeFromMaxTransaction(address(0xdead), true);
        _excludeFromMaxTransaction(address(buybackAddress), true);
        _excludeFromMaxTransaction(address(dexRouter), true);

        excludeFromFees(newOwner, true);
        excludeFromFees(address(this), true);
        excludeFromFees(address(0xdead), true);
        excludeFromFees(address(buybackAddress), true);
        excludeFromFees(address(dexRouter), true);

        
        _mint(address(this), totalSupply);

        transferOwnership(newOwner);
    }

    receive() external payable {}
    
    function enableTrading(uint256 blocksForPenalty) external onlyOwner {
        require(!tradingActive, "Cannot reenable trading");
        require(blocksForPenalty <= 10, "Cannot make penalty blocks more than 10");
        tradingActive = true;
        swapEnabled = true;
        tradingActiveBlock = block.number;
        blockForPenaltyEnd = tradingActiveBlock + blocksForPenalty;
        emit EnabledTrading();
    }
    
    // remove limits after token is stable
    function removeLimits() external onlyOwner {
        limitsInEffect = false;
        transferDelayEnabled = false;
        maxBuyAmount = totalSupply();
        maxSellAmount = totalSupply();
        emit RemovedLimits();
    }

    function getEarlyBuyers() external view returns (address[] memory){
        return earlyBuyers;
    }

    function massRemoveBoughtEarly(address[] calldata accounts) external onlyOwner {
        for(uint256 i = 0; i < accounts.length; i++){
            boughtEarly[accounts[i]] = false;
        }
    }

    function removeBoughtEarly(address wallet) external onlyOwner {
        require(boughtEarly[wallet], "Wallet is already not flagged.");
        boughtEarly[wallet] = false;
    }

    function emergencyUpdateRouter(address router) external onlyOwner {
        require(!tradingActive, "Cannot update after trading is functional");
        dexRouter = IDexRouter(router);
    }
    
    // disable Transfer delay - cannot be reenabled
    function disableTransferDelay() external onlyOwner {
        transferDelayEnabled = false;
    }
    
    function updateMaxBuyAmount(uint256 newNum) external onlyOwner {
        require(newNum >= (totalSupply() * 10 / 1000) / (10 ** decimals()), "Cannot set max buy amount lower than 1%");
        maxBuyAmount = newNum * (10 ** decimals());
        emit UpdatedMaxBuyAmount(maxBuyAmount);
    }
    
    function updateMaxSellAmount(uint256 newNum) external onlyOwner {
        require(newNum >= (totalSupply() * 10 / 1000) / (10 ** decimals()), "Cannot set max sell amount lower than 1%");
        maxSellAmount = newNum * (10 ** decimals());
        emit UpdatedMaxSellAmount(maxSellAmount);
    }

    function updateMaxWallet(uint256 newNum) external onlyOwner {
        require(newNum >= (totalSupply() * 10 / 100) / (10 ** decimals()), "Cannot set max wallet amount lower than 1%");
        maxWallet = newNum * (10 ** decimals());
        emit UpdatedMaxWalletAmount(maxWallet);
    }

    // change the minimum amount of tokens to sell from fees
    function updateSwapTokensAtAmount(uint256 newAmount) external onlyOwner {
  	    require(newAmount >= totalSupply() * 1 / 100000, "Swap amount cannot be lower than 0.001% total supply.");
  	    require(newAmount <= totalSupply() * 1 / 1000, "Swap amount cannot be higher than 0.1% total supply.");
  	    swapTokensAtAmount = newAmount;
  	}
    
    function _excludeFromMaxTransaction(address updAds, bool isExcluded) private {
        _isExcludedMaxTransactionAmount[updAds] = isExcluded;
        emit MaxTransactionExclusion(updAds, isExcluded);
    }
     
    function excludeFromMaxTransaction(address updAds, bool isEx) external onlyOwner {
        if(!isEx){
            require(updAds != lpPair, "Cannot remove uniswap pair from max txn");
        }
        _isExcludedMaxTransactionAmount[updAds] = isEx;
    }

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

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

    function updateBuyFees(uint256 _buybackFee, uint256 _liquidityFee, uint256 _burnFee) external onlyOwner {
        buyBuybackFee = _buybackFee;
        buyLiquidityFee = _liquidityFee;
        buyBurnFee = _burnFee;
        buyTotalFees = buyBuybackFee + buyLiquidityFee + buyBurnFee;
        require(buyTotalFees <= 12 * FEE_DIVISOR / 100, "Must keep fees at 12% or less");
    }

    function updateSellFees(uint256 _buybackFee, uint256 _liquidityFee,uint256 _burnFee) external onlyOwner {
        sellBuybackFee = _buybackFee;
        sellLiquidityFee = _liquidityFee;
        sellBurnFee = _burnFee;
        sellTotalFees = sellBuybackFee + sellLiquidityFee + sellBurnFee;
        require(sellTotalFees <= 12 * FEE_DIVISOR / 100, "Must keep fees at 12% or less");
    }

    function massExcludeFromFees(address[] calldata accounts, bool excluded) external onlyOwner {
        for(uint256 i = 0; i < accounts.length; i++){
            _isExcludedFromFees[accounts[i]] = excluded;
            emit ExcludeFromFees(accounts[i], excluded);
        }
    }

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

    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");
        require(amount > 0, "amount must be greater than 0");
        
        if(!tradingActive){
            require(_isExcludedFromFees[from] || _isExcludedFromFees[to], "Trading is not active.");
        }

        if(!earlyBuyPenaltyInEffect() && tradingActive){
            require(!boughtEarly[from] || to == owner() || to == address(0xdead), "Bots cannot transfer tokens in or out except to owner or dead address.");
        }
        
        if(limitsInEffect){
            if (from != owner() && to != owner() && to != address(0) && to != address(0xdead) && !_isExcludedFromFees[from] && !_isExcludedFromFees[to]){
                
                // at launch if the transfer delay is enabled, ensure the block timestamps for purchasers is set -- during launch.  
                if (transferDelayEnabled){
                    if (to != address(dexRouter) && to != address(lpPair)){
                        require(_holderLastTransferTimestamp[tx.origin] < block.number - 2 && _holderLastTransferTimestamp[to] < block.number - 2, "_transfer:: Transfer Delay enabled.  Try again later.");
                        _holderLastTransferTimestamp[tx.origin] = block.number;
                        _holderLastTransferTimestamp[to] = block.number;
                    }
                }
                 
                //when buy
                if (automatedMarketMakerPairs[from] && !_isExcludedMaxTransactionAmount[to]) {
                    require(amount <= maxBuyAmount, "Buy transfer amount exceeds the max buy.");
                    require(amount + balanceOf(to) <= maxWallet, "Cannot exceed max wallet");
                } 
                //when sell
                else if (automatedMarketMakerPairs[to] && !_isExcludedMaxTransactionAmount[from]) {
                    require(amount <= maxSellAmount, "Sell transfer amount exceeds the max sell.");
                }
                else if (!_isExcludedMaxTransactionAmount[to]) {
                    require(amount + balanceOf(to) <= maxWallet, "Cannot exceed max wallet");
                }
            }
        }

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

        if(canSwap && swapEnabled && !swapping && !automatedMarketMakerPairs[from] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to]) {
            swapping = true;
            swapBack();
            swapping = false;
        }

        if(!swapping && automatedMarketMakerPairs[to] && lpBurnEnabled && block.timestamp >= lastLpBurnTime + lpBurnFrequency && !_isExcludedFromFees[from]){
            autoBurnLiquidityPairTokens();
        }

        bool takeFee = true;
        // if any account belongs to _isExcludedFromFee account then remove the fee
        if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
            takeFee = false;
        }
        
        uint256 fees = 0;
        uint256 tokensToBurn = 0;

        // only take fees on buys/sells, do not take on wallet transfers
        if(takeFee){
            // bot/sniper penalty.
            if(earlyBuyPenaltyInEffect() && automatedMarketMakerPairs[from] && !automatedMarketMakerPairs[to] && !_isExcludedFromFees[to] && buyTotalFees > 0){
                
                if(!earlyBuyPenaltyInEffect()){
                    // reduce by 1 wei per max buy over what Uniswap will allow to revert bots as best as possible to limit erroneously blacklisted wallets. First bot will get in and be blacklisted, rest will be reverted (*cross fingers*)
                    maxBuyAmount -= 1;
                }

                if(!boughtEarly[to]){
                    boughtEarly[to] = true;
                    botsCaught += 1;
                    earlyBuyers.push(to);
                    emit CaughtEarlyBuyer(to);
                }

                fees = amount * buyTotalFees / FEE_DIVISOR;
        	    tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees;
                tokensForBuyback += fees * buyBuybackFee / buyTotalFees;
                tokensToBurn = fees * buyBurnFee / buyTotalFees;
            }

            // on sell
            else if (automatedMarketMakerPairs[to] && sellTotalFees > 0){
                fees = amount * sellTotalFees / FEE_DIVISOR;
                tokensForLiquidity += fees * sellLiquidityFee / sellTotalFees;
                tokensForBuyback += fees * sellBuybackFee / sellTotalFees;
                tokensToBurn = fees * sellBurnFee / buyTotalFees;
            }

            // on buy
            else if(automatedMarketMakerPairs[from] && buyTotalFees > 0) {
        	    fees = amount * buyTotalFees / FEE_DIVISOR;
        	    tokensForLiquidity += fees * buyLiquidityFee / buyTotalFees;
                tokensForBuyback += fees * buyBuybackFee / buyTotalFees;
                tokensToBurn = fees * buyBurnFee / buyTotalFees;
            }
            
            if(fees > 0){    
                super._transfer(from, address(this), fees);
                if(tokensToBurn > 0){
                    super._transfer(address(this), address(0xdead), tokensToBurn);
                }
            }
        	
        	amount -= fees;
        }

        super._transfer(from, to, amount);
    }

    function earlyBuyPenaltyInEffect() public view returns (bool){  
        return block.number < blockForPenaltyEnd;
    }

    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] = dexRouter.WETH();

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

        // make the swap
        dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
    }
    
    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(dexRouter), tokenAmount);

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

    function swapBack() private {

        uint256 contractBalance = balanceOf(address(this));
        uint256 totalTokensToSwap = tokensForLiquidity + tokensForBuyback;
        
        if(contractBalance == 0 || totalTokensToSwap == 0) {return;}

        if(contractBalance > swapTokensAtAmount * 10){
            contractBalance = swapTokensAtAmount * 10;
        }

        bool success;
        
        // Halve the amount of liquidity tokens
        uint256 liquidityTokens = contractBalance * tokensForLiquidity / totalTokensToSwap / 2;
        
        swapTokensForEth(contractBalance - liquidityTokens); 
        
        uint256 ethBalance = address(this).balance;
        uint256 ethForLiquidity = ethBalance;

        uint256 ethForBuyback = ethBalance * tokensForBuyback / (totalTokensToSwap - (tokensForLiquidity/2));

        ethForLiquidity -= ethForBuyback;
            
        tokensForLiquidity = 0;
        tokensForBuyback = 0;
        
        if(liquidityTokens > 0 && ethForLiquidity > 0){
            addLiquidity(liquidityTokens, ethForLiquidity);
        }

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

    function transferForeignToken(address _token, address _to) external onlyOwner returns (bool _sent) {
        require(_token != address(0), "_token address cannot be 0");
        require(_token != address(this) || !tradingActive, "Can't withdraw native tokens while trading is active");
        uint256 _contractBalance = IERC20(_token).balanceOf(address(this));
        _sent = IERC20(_token).transfer(_to, _contractBalance);
        emit TransferForeignToken(_token, _contractBalance);
    }

    // withdraw ETH if stuck or someone sends to the address
    function withdrawStuckETH() external onlyOwner {
        bool success;
        (success,) = address(msg.sender).call{value: address(this).balance}("");
    }

    function setBuybackAddress(address _buybackAddress) external onlyOwner {
        require(_buybackAddress != address(0), "_buybackAddress address cannot be 0");
        buybackAddress = payable(_buybackAddress);
        emit UpdatedBuybackAddress(_buybackAddress);
    }

    // force Swap back if slippage issues.
    function forceSwapBack() external onlyOwner {
        require(balanceOf(address(this)) >= swapTokensAtAmount, "Can only swap when token amount is at or higher than restriction");
        swapping = true;
        swapBack();
        swapping = false;
        emit OwnerForcedSwapBack(block.timestamp);
    }


    function incipiamInferno(uint256 _penaltyBlocks) external onlyOwner {
        require(!tradingActive, "Trading is already active, cannot relaunch.");

        //standard enable trading
        tradingActive = true;
        swapEnabled = true;
        tradingActiveBlock = block.number;
        blockForPenaltyEnd = tradingActiveBlock + _penaltyBlocks;
        emit EnabledTrading();

        // create pair
        lpPair = IDexFactory(dexRouter.factory()).createPair(address(this), dexRouter.WETH());
        _excludeFromMaxTransaction(address(lpPair), true);
        _setAutomatedMarketMakerPair(address(lpPair), true);
   
        // add the liquidity

        require(address(this).balance > 0, "Must have ETH on contract to launch");

        require(balanceOf(address(this)) > 0, "Must have Tokens on contract to launch");

        _approve(address(this), address(dexRouter), balanceOf(address(this)));
        dexRouter.addLiquidityETH{value: address(this).balance}(
            address(this),
            balanceOf(address(this)),
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            address(this),
            block.timestamp
        );
    }

    function setAutoLPBurnSettings(uint256 _frequencyInSeconds, uint256 _percent, bool _Enabled) external onlyOwner {
        require(_frequencyInSeconds >= 600, "cannot set buyback more often than every 10 minutes");
        require(_percent <= 1000 && _percent >= 0, "Must set auto LP burn percent between 0% and 10%");
        lpBurnFrequency = _frequencyInSeconds;
        percentForLPBurn = _percent;
        lpBurnEnabled = _Enabled;
    }
    
    function autoBurnLiquidityPairTokens() internal {
        
        lastLpBurnTime = block.timestamp;
        
        lastManualLpBurnTime = block.timestamp;
        uint256 lpBalance = IERC20(lpPair).balanceOf(address(this));
        uint256 tokenBalance = balanceOf(address(this));
        uint256 lpAmount = lpBalance * percentForLPBurn / 10000;
        uint256 initialEthBalance = address(this).balance;

        // approve token transfer to cover all possible scenarios
        IERC20(lpPair).approve(address(dexRouter), lpAmount);

        // remove the liquidity
        dexRouter.removeLiquidityETH(
            address(this),
            lpAmount,
            1, // slippage is unavoidable
            1, // slippage is unavoidable
            address(this),
            block.timestamp
        );

        uint256 deltaTokenBalance = balanceOf(address(this)) - tokenBalance;
        if(deltaTokenBalance > 0){
            super._transfer(address(this), address(0xdead), deltaTokenBalance);
        }

        uint256 deltaEthBalance = address(this).balance - initialEthBalance;

        if(deltaEthBalance > 0){
            buyBackTokens(deltaEthBalance);
        }

        emit AutoBurnLP(lpAmount);
    }

    function manualBurnLiquidityPairTokens(uint256 percent) external onlyOwner {
        require(percent <=2000, "May not burn more than 20% of contract's LP at a time");
        require(lastManualLpBurnTime <= block.timestamp - manualBurnFrequency, "Burn too soon");
        lastManualLpBurnTime = block.timestamp;
        uint256 lpBalance = IERC20(lpPair).balanceOf(address(this));
        uint256 tokenBalance = balanceOf(address(this));
        uint256 lpAmount = lpBalance * percent / 10000;
        uint256 initialEthBalance = address(this).balance;

        // approve token transfer to cover all possible scenarios
        IERC20(lpPair).approve(address(dexRouter), lpAmount);

        // remove the liquidity
        dexRouter.removeLiquidityETH(
            address(this),
            lpAmount,
            1, // slippage is unavoidable
            1, // slippage is unavoidable
            address(this),
            block.timestamp
        );

        uint256 deltaTokenBalance = balanceOf(address(this)) - tokenBalance;
        if(deltaTokenBalance > 0){
            super._transfer(address(this), address(0xdead), deltaTokenBalance);
        }

        uint256 deltaEthBalance = address(this).balance - initialEthBalance;

        if(deltaEthBalance > 0){
            buyBackTokens(deltaEthBalance);
        }

        emit ManualBurnLP(lpAmount);
    }

    function buyBackTokens(uint256 amountInWei) internal {
        address[] memory path = new address[](2);
        path[0] = dexRouter.WETH();
        path[1] = address(this);

        dexRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amountInWei}(
            0,
            path,
            address(0xdead),
            block.timestamp
        );
    }

    function requestToWithdrawLP(uint256 percToWithdraw) external onlyOwner {
        require(!lpWithdrawRequestPending, "Cannot request again until first request is over.");
        require(percToWithdraw <= 100 && percToWithdraw > 0, "Need to set between 1-100%");
        lpWithdrawRequestTimestamp = block.timestamp;
        lpWithdrawRequestPending = true;
        lpPercToWithDraw = percToWithdraw;
        emit RequestedLPWithdraw();
    }

    function nextAvailableLpWithdrawDate() public view returns (uint256){
        if(lpWithdrawRequestPending){
            return lpWithdrawRequestTimestamp + lpWithdrawRequestDuration;
        }
        else {
            return 0;  // 0 means no open requests
        }
    }

    function withdrawRequestedLP() external onlyOwner {
        require(block.timestamp >= nextAvailableLpWithdrawDate() && nextAvailableLpWithdrawDate() > 0, "Must request and wait.");
        lpWithdrawRequestTimestamp = 0;
        lpWithdrawRequestPending = false;

        uint256 amtToWithdraw = IERC20(address(lpPair)).balanceOf(address(this)) * lpPercToWithDraw / 100;
        
        lpPercToWithDraw = 0;

        IERC20(lpPair).transfer(msg.sender, amtToWithdraw);
    }

    function cancelLPWithdrawRequest() external onlyOwner {
        lpWithdrawRequestPending = false;
        lpPercToWithDraw = 0;
        lpWithdrawRequestTimestamp = 0;
        emit CanceledLpWithdrawRequest();
    }

}
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