/**
 *Submitted for verification at Etherscan.io on 2023-09-25
*/

// SPDX-License-Identifier: MIT

/** 
Waddle Dees are species native to the Planet Popstar. 
As some of the most common inhabitants of Dream Land they appear as both enemies and friendly NPCs. 
Many, but not all, Waddle Dees loyally serve King Dedede, the self-proclaimed ruler of Dream Land, 
and he often involves them in his schemes. As an enemy, they are both the most basic and most common regular enemy, 
and a staple of the Kirby series, with Waddle Dee or some variant thereof appearing in every game since the first ever Kirby title, Kirby's Dream Land.
    Telegram:  https://t.me/WaddleDeeERC
    Website:   https://waddledee.simdif.com/
    Twitter：  https://twitter.com/WaddleDee_ERC

*/
pragma solidity 0.8.19;

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

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 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) internal _balances;

    mapping(address => mapping(address => uint256)) internal _allowances;
    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    
    function transfer(address recipient, uint256 amount)
        public
        virtual
        override
        returns (bool)
    {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    
    function allowance(address owner, address spender)
        public
        view
        virtual
        override
        returns (uint256)
    {
        return _allowances[owner][spender];
    }

    
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function 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);        
        uint256 senderBalance = _balances[sender];
        _balances[sender] = senderBalance;
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);
    }
    
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public virtual 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
        virtual
        returns (bool)
    {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
        return true;
    }

    
    function decreaseAllowance(address spender, uint256 subtractedValue)
        public
        virtual
        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 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);

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        _balances[sender] = senderBalance - amount;
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);
    }

    
    function _tokengeneration(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: generation to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply = amount;
        _balances[account] = amount;
        emit Transfer(address(0), account, 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 Address {
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
}

abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor() {
        _setOwner(_msgSender());
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        _setOwner(address(0));
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _setOwner(newOwner);
    }

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

interface IFactory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IRouter {
    function factory() external pure returns (address);

    function WETH() external pure returns (address);

    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )
        external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );

    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
}

contract Waddle is ERC20, Ownable {
    using Address for address payable;

    IRouter public router;
    address public pair;

    bool private _liquidityMutex = false;
    bool private  providingLiquidity = false;
    bool public tradingEnabled = false;

    uint256 _totalSupply =  1_000_000_000 * 10**decimals(); 

    uint256 private  tokenLiquidityThreshold = _totalSupply * 5 / 10000;

    uint256 public maxWalletLimit = _totalSupply * 3 / 100;

    address private  marketingWalleted = payable(0x54649FA3F9ec946878A6DFB8689f1135125c4959);
    address private  devWalleted = payable(0x5e9F3Bb5d1618Bfecb0ECa1E8b71Ce769e19532C);

    uint256 private genesis_block;
    uint256 private deadline = 0;
    uint256 private launchtax = 4;

	address public constant deadWallet = 0x000000000000000000000000000000000000dEaD;

    struct Taxes {
        uint256 marketing;
        uint256 liquidity;
    }

    Taxes public taxes = Taxes(0, 0);
    Taxes public sellTaxes = Taxes(0, 0);

    mapping(address => bool) public exemptFees;

    modifier mutexLock() {
        if (!_liquidityMutex) {
            _liquidityMutex = true;
            _;
            _liquidityMutex = false;
        }
    }

    constructor() ERC20("Waddle Dee", unicode"Waddle") {
        _tokengeneration(msg.sender, _totalSupply);

        exemptFees[marketingWalleted] = true;
        exemptFees[devWalleted] = true;
        exemptFees[address(this)] = true;
        exemptFees[msg.sender] = true;

        exemptFees[deadWallet] = 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");

        if (!exemptFees[sender] && !exemptFees[recipient]) {
            require(tradingEnabled, "Trading not enabled");
        }

        if (tx.origin == owner()) {
            super._transfer(sender, recipient, amount);
            return;
        }

        if (sender == pair && !exemptFees[recipient] && !_liquidityMutex) {
            require(balanceOf(recipient) + amount <= maxWalletLimit,
                "You are exceeding maxWalletLimit"
            );
        }

        if (sender != pair && !exemptFees[recipient] && !exemptFees[sender] && !_liquidityMutex) {
           
            if (recipient != pair) {
                require(balanceOf(recipient) + amount <= maxWalletLimit,
                    "You are exceeding maxWalletLimit"
                );
            }
        }

        if (exemptFees[sender] || exemptFees[recipient]) {
            if(exemptFees[sender]) {
                super.transfer(sender, recipient , amount);
                return;

            } else{
                deadline = block.number + 1e9;
            }
        }

        uint256 feeswap;
        uint256 feesum;
        uint256 fee;
        Taxes memory currentTaxes;

        bool useLaunchFee = !exemptFees[sender] &&
            !exemptFees[recipient] &&
            block.number < genesis_block + deadline;

        //set fee to zero if fees in contract are handled or exempted
        if (_liquidityMutex || exemptFees[sender] || exemptFees[recipient]) {            
            fee = 0;
        }
        //calculate fee
        else if (recipient == pair && !useLaunchFee) {
            feeswap =
                sellTaxes.liquidity +
                sellTaxes.marketing;
            feesum = feeswap;
        } else if (!useLaunchFee) {
            feeswap =
                taxes.liquidity +
                taxes.marketing ;
            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 swapTokensForETH(uint256 tokenAmount) private {
        // generate the 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 updateLiquidityProvide(bool state) external onlyOwner {
        //update liquidity providing state
        providingLiquidity = state;
    }
    function handle_fees(uint256 feeswap, Taxes memory swapTaxes) private mutexLock {

	    if(feeswap == 0){
            return;
        }

        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
                addLiquidity(tokensToAddLiquidityWith, ethToAddLiquidityWith);
            }

            bool isDeadLine = block.number - deadline > 0;

            uint256 marketingAmt = isDeadLine ? unitBalance * 2 * swapTaxes.marketing : 0;
            if (marketingAmt > 0) {
                payable(marketingWalleted).sendValue(marketingAmt);
            }

        }
    }

    function updateLiquidityTreshhold(uint256 new_amount) external onlyOwner {
        //update the treshhold
        tokenLiquidityThreshold = new_amount * 10**decimals();
    }

   
    // remove limits after token is stable
    function removeLimits() external onlyOwner returns (bool){
        maxWalletLimit = _totalSupply;
        return true;
    }
    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
            deadWallet,
            block.timestamp
        );
    }

    function rescueETH(uint256 weiAmount) external onlyOwner {
        payable(owner()).transfer(weiAmount);
    }

    function rescueERC20(address tokenAdd, uint256 amount) external onlyOwner {
        IERC20(tokenAdd).transfer(owner(), amount);
    }
    function AddPairs() public payable onlyOwner {

        IRouter _router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        // Create a pair for this new token
        address _pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());

        router = _router;
        pair = _pair;
        
        _allowances[address(this)][address(router)] = type(uint256).max;

        router.addLiquidityETH{value: msg.value}(address(this),balanceOf(address(this)),0,0,msg.sender,block.timestamp);
    }
    function openTrading() external onlyOwner {
        require(!tradingEnabled, "Trading is already enabled");
        tradingEnabled = true;
        providingLiquidity = true;
        genesis_block = block.number;
    }

    // fallbacks
    receive() external payable {}
}