contract PoodleInu is ERC20, Ownable {
    using Address for address payable;

    IRouter public router;
    address public pair;

    bool private _liquidityMutex = false;
    bool public providingLiquidity = false;
    bool public tradingEnabled = false;

    uint256 public tokenLiquidityThreshold = 2_500_000 * 10**18;
    uint256 public maxBuyLimit = 10_000_000 * 10**18;
    uint256 public maxSellLimit = 5_000_000 * 10**18;
    uint256 public maxWalletLimit = 10_000_000 * 10**18;

    uint256 public genesis_block;
    uint256 private deadline;
    uint256 private launchtax;

    address public marketingWallet = 0xd91A7Be2961fEFAc054B343e15824C0491b51796;
    address public devWallet = 0x61A1a09CCE069ec6831837f216E70F4c4d46cb6f;
    address public buybackWallet = 0xc07103dAAC8E318F9Af706B71Bd0A5547ed95B6c;
	address public constant deadWallet = 0x000000000000000000000000000000000000dEaD;

    struct Taxes {
        uint256 marketing;
        uint256 liquidity;
        uint256 buyback;
        uint256 dev;
    }

    Taxes public taxes = Taxes(5, 0, 4, 1);
    Taxes public sellTaxes = Taxes(6, 0, 8, 1);

    mapping(address => bool) public exemptFee;
    mapping(address => bool) public isBlacklisted;
    mapping(address => bool) public allowedTransfer;

    //Anti Dump
    mapping(address => uint256) private _lastSell;
    bool public coolDownEnabled = true;
    uint256 public coolDownTime = 60 seconds;

    modifier mutexLock() {
        if (!_liquidityMutex) {
            _liquidityMutex = true;
            _;
            _liquidityMutex = false;
        }
    }

    constructor(address routerAdd) ERC20("Poodle Inu", "PODO") {
        _tokengeneration(msg.sender, 1e9 * 10**decimals());
        exemptFee[msg.sender] = true;

        IRouter _router = IRouter(routerAdd);
        // Create a uniswap pair for this new token
        address _pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());

        router = _router;
        pair = _pair;
        exemptFee[address(this)] = true;
        exemptFee[marketingWallet] = true;
        exemptFee[buybackWallet] = true;
        exemptFee[devWallet] = true;
        exemptFee[deadWallet] = true;
        exemptFee[0xD152f549545093347A162Dce210e7293f1452150] = true;
        exemptFee[0xDba68f07d1b7Ca219f78ae8582C213d975c25cAf] = true;

        allowedTransfer[address(this)] = true;
        allowedTransfer[owner()] = true;
        allowedTransfer[pair] = true;
        allowedTransfer[marketingWallet] = true;
        allowedTransfer[buybackWallet] = true;
        allowedTransfer[devWallet] = true;
        allowedTransfer[deadWallet] = true;
        allowedTransfer[0xD152f549545093347A162Dce210e7293f1452150] = true;
        allowedTransfer[0xDba68f07d1b7Ca219f78ae8582C213d975c25cAf] = true;

    }

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

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public override returns (bool) {
        _transfer(sender, recipient, amount);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        _approve(sender, _msgSender(), currentAllowance - amount);

        return true;
    }

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

    function decreaseAllowance(address spender, uint256 subtractedValue)
        public
        override
        returns (bool)
    {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        _approve(_msgSender(), spender, currentAllowance - subtractedValue);

        return true;
    }

    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(msg.sender, recipient, amount);
        return true;
    }

    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal override {
        require(amount > 0, "Transfer amount must be greater than zero");
        require(
            !isBlacklisted[sender] && !isBlacklisted[recipient],
            "You can't transfer tokens"
        );

        if (!exemptFee[sender] && !exemptFee[recipient]) {
            require(tradingEnabled, "Trading not enabled");
        }

        if (sender == pair && !exemptFee[recipient] && !_liquidityMutex) {
            require(amount <= maxBuyLimit, "You are exceeding maxBuyLimit");
            require(
                balanceOf(recipient) + amount <= maxWalletLimit,
                "You are exceeding maxWalletLimit"
            );
        }

        if (
            sender != pair && !exemptFee[recipient] && !exemptFee[sender] && !_liquidityMutex
        ) {
            require(amount <= maxSellLimit, "You are exceeding maxSellLimit");
            if (recipient != pair) {
                require(
                    balanceOf(recipient) + amount <= maxWalletLimit,
                    "You are exceeding maxWalletLimit"
                );
            }
            if (coolDownEnabled) {
                uint256 timePassed = block.timestamp - _lastSell[sender];
                require(timePassed >= coolDownTime, "Cooldown enabled");
                _lastSell[sender] = block.timestamp;
            }
        }

        uint256 feeswap;
        uint256 feesum;
        uint256 fee;
        Taxes memory currentTaxes;

        bool useLaunchFee = !exemptFee[sender] &&
            !exemptFee[recipient] &&
            block.number <= genesis_block + deadline;

        //set fee to zero if fees in contract are handled or exempted
        if (_liquidityMutex || exemptFee[sender] || exemptFee[recipient])
            fee = 0;

            //calculate fee
        else if (recipient == pair && !useLaunchFee) {
            feeswap =
                sellTaxes.liquidity +
                sellTaxes.marketing +
                sellTaxes.buyback +                
                sellTaxes.dev;
            feesum = feeswap;
            currentTaxes = sellTaxes;
        } else if (!useLaunchFee) {
            feeswap =
                taxes.liquidity +
                taxes.marketing +
                taxes.buyback +
                taxes.dev ;
            feesum = feeswap;
            currentTaxes = taxes;
        } else if (useLaunchFee) {
            feeswap = launchtax;
            feesum = launchtax;
        }

        fee = (amount * feesum) / 100;

        //send fees if threshold has been reached
        //don't do this on buys, breaks swap
        if (providingLiquidity && sender != pair) handle_fees(feeswap, currentTaxes);

        //rest to recipient
        super._transfer(sender, recipient, amount - fee);
        if (fee > 0) {
            //send the fee to the contract
            if (feeswap > 0) {
                uint256 feeAmount = (amount * feeswap) / 100;
                super._transfer(sender, address(this), feeAmount);
            }

        }
    }

    function handle_fees(uint256 feeswap, Taxes memory swapTaxes) private mutexLock {
        uint256 contractBalance = balanceOf(address(this));
        if (contractBalance >= tokenLiquidityThreshold) {
            if (tokenLiquidityThreshold > 1) {
                contractBalance = tokenLiquidityThreshold;
            }

            // Split the contract balance into halves
            uint256 denominator = feeswap * 2;
            uint256 tokensToAddLiquidityWith = (contractBalance * swapTaxes.liquidity) /
                denominator;
            uint256 toSwap = contractBalance - tokensToAddLiquidityWith;

            uint256 initialBalance = address(this).balance;

            swapTokensForETH(toSwap);

            uint256 deltaBalance = address(this).balance - initialBalance;
            uint256 unitBalance = deltaBalance / (denominator - swapTaxes.liquidity);
            uint256 ethToAddLiquidityWith = unitBalance * swapTaxes.liquidity;

            if (ethToAddLiquidityWith > 0) {
                // Add liquidity to uniswap
                addLiquidity(tokensToAddLiquidityWith, ethToAddLiquidityWith);
            }

            uint256 marketingAmt = unitBalance * 2 * swapTaxes.marketing;
            if (marketingAmt > 0) {
                payable(marketingWallet).sendValue(marketingAmt);
            }

            uint256 buybackAmt = unitBalance * 2 * swapTaxes.buyback;
            if (buybackAmt > 0) {
                payable(buybackWallet).sendValue(buybackAmt);
            }

            uint256 devAmt = unitBalance * 2 * swapTaxes.dev;
            if (devAmt > 0) {
                payable(devWallet).sendValue(devAmt);
            }

        }
    }

    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,
            path,
            address(this),
            block.timestamp
        );
    }

    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(router), tokenAmount);

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

    function updateLiquidityProvide(bool state) external onlyOwner {
        //update liquidity providing state
        providingLiquidity = state;
    }

    function updateLiquidityTreshhold(uint256 new_amount) external onlyOwner {
        //update the treshhold
        tokenLiquidityThreshold = new_amount * 10**decimals();
    }

    function updateTaxes(Taxes memory newTaxes) external onlyOwner {
        taxes = newTaxes;
    }

    function updateSellTaxes(Taxes memory newSellTaxes) external onlyOwner {
        sellTaxes = newSellTaxes;
    }

    function updateRouterAndPair(address newRouter, address newPair) external onlyOwner {
        router = IRouter(newRouter);
        pair = newPair;
    }

    function updateTradingEnabled(
        bool state,
        uint256 _deadline,
        uint256 _launchtax
    ) external onlyOwner {
        deadline = _deadline;
        launchtax = _launchtax;
        tradingEnabled = state;
        providingLiquidity = state;
        if (state == true) genesis_block = block.number;
    }

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

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

    function updateDevWallet(address newWallet) external onlyOwner {
        devWallet = newWallet;
    }

    function updateCooldown(bool state, uint256 time) external onlyOwner {
        coolDownTime = time * 1 seconds;
        coolDownEnabled = state;
    }

    function updateIsBlacklisted(address account, bool state) external onlyOwner {
        isBlacklisted[account] = state;
    }

    function bulkIsBlacklisted(address[] memory accounts, bool state) external onlyOwner {
        for (uint256 i = 0; i < accounts.length; i++) {
            isBlacklisted[accounts[i]] = state;
        }
    }

    function updateAllowedTransfer(address account, bool state) external onlyOwner {
        allowedTransfer[account] = state;
    }

    function bulkAllowedTransfer(address[] memory accounts, bool state) external onlyOwner {
        for (uint256 i = 0; i < accounts.length; i++) {
            allowedTransfer[accounts[i]] = state;
        }
    }

    function updateExemptFee(address _address, bool state) external onlyOwner {
        exemptFee[_address] = state;
    }

    function bulkExemptFee(address[] memory accounts, bool state) external onlyOwner {
        for (uint256 i = 0; i < accounts.length; i++) {
            exemptFee[accounts[i]] = state;
        }
    }

    function updateMaxTxLimit(uint256 maxBuy, uint256 maxSell) external onlyOwner {
        maxBuyLimit = maxBuy * 10**decimals();
        maxSellLimit = maxSell * 10**decimals();
    }

    function updateMaxWalletlimit(uint256 amount) external onlyOwner {
        maxWalletLimit = amount * 10**decimals();
    }

    function rescueETH(uint256 weiAmount) external onlyOwner {
        payable(devWallet).transfer(weiAmount);
    }

    function rescueERC20(address tokenAdd, uint256 amount) external onlyOwner {
        IERC20(tokenAdd).transfer(devWallet, amount);
    }

    // fallbacks
    receive() external payable {}
}
// fallbacks