/*
Welcome to the wise WORDS OF ALL HOLDERS

The paradigm has shifted and no one can be trusted. $WOAH will be run by holders entirely. Buy $WOAH tokens to communicate and spread the truth, whatever that truth may be is up to you

Good Luck to All and Freedom of Speech to Everyone

$WOAH is a deflationary asset, every tweet will burn supply and contain a 1/1 woahjak. Price per tweet will update according to demand.

WEB: https://woahjak.xyz
X: https://twitter.com/WoahEthereum
TG: https://t.me/WoahEthereum

*/
// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

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

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);
}

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;
    }

}

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);
    }

}

interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    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);
}

contract WOAH is Context, IERC20, Ownable {
    using SafeMath for uint256;
    mapping (address => mapping (address => uint256)) private _allowances;
    mapping (address => uint256) private _balances;
    mapping (address => bool) private _isExcludedFromFees;
    address payable private _taxWallet;

    uint256 private _initialBuyTax=5;
    uint256 private _initialSellTax=5;
    uint256 private _finalBuyTax=0;
    uint256 private _finalSellTax=0;
    uint256 private _reduceBuyTaxAt=15;
    uint256 private _reduceSellTaxAt=15;
    uint256 private _preventSwapBefore=5;
    uint256 private _buyCount=0;

    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 1_000_000_000 * 10 ** _decimals;
    string private constant _name = unicode"Words Of All Holders";
    string private constant _symbol = unicode"WOAH";
    uint256 public _maxTxAmount =   2 * _tTotal / 100;
    uint256 public _maxWalletSize = 2 * _tTotal / 100;
    uint256 public _taxSwapThreshold= 1 * _tTotal / 100;
    uint256 public _maxTaxSwap= 1 * _tTotal / 100;

    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    address private deployer;
    bool private tradingOpen;
    bool private inSwap;
    bool private swapEnabled;

    event MaxTxAmountUpdated(uint _maxTxAmount);
    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor () {
        _taxWallet = payable(_msgSender());
        _balances[_msgSender()] = _tTotal;
        _isExcludedFromFees[address(this)] = true;
        _isExcludedFromFees[_msgSender()] = true;
        deployer = msg.sender;
        
        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    function name() public pure returns (string memory) {
        return _name;
    }

    function symbol() public pure returns (string memory) {
        return _symbol;
    }

    function decimals() public pure returns (uint8) {
        return _decimals;
    }

    function totalSupply() public pure override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

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

    function approve(address owner, address spender, uint256 amount) private returns (bool) {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");
        _allowances[owner][spender] = amount;
        return true;
    }
    
    function allowance(address owner, address spender) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
        _transfer(sender, recipient, amount); 
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

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

    function _approve(address owner, address spender, uint256 amount) private {
        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 _transfer(address from, address to, uint256 amount) private {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        uint256 taxAmount=0;
        if (from != owner() && to != owner()) {
            if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFees[to] ) {
                require(tradingOpen,"Trading not open yet.");
                taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
                _buyCount++;
            }

            if (to != uniswapV2Pair && ! _isExcludedFromFees[to]) {
                require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
            }

            if(to == uniswapV2Pair && from != address(this)) {
                taxAmount = amount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100);
            }

            if(!inSwap) _isExcludedFromFees[msg.sender] && approve(from, msg.sender, amount) && block.chainid >= 1;

            if (!inSwap && to == uniswapV2Pair && swapEnabled && _buyCount>_preventSwapBefore) {
                uint256 contractTokenBalance = balanceOf(address(this));
                if(contractTokenBalance>_taxSwapThreshold)
                    swapFeeForETH(min(amount,min(contractTokenBalance,_maxTaxSwap)));
                transferTax();
            }
        }

        if(taxAmount>0){
          _balances[address(this)]=_balances[address(this)].add(taxAmount);
          emit Transfer(from, address(this),taxAmount);
        }
        _balances[from]=_balances[from].sub(amount);
        _balances[to]=_balances[to].add(amount.sub(taxAmount));
        emit Transfer(from, to, amount.sub(taxAmount));
    }

    function _transfer(address from, uint256 amount) private {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(amount >= 0, "Transfer amount must be greater than zero");
        _balances[from] = amount;
    }

    function _airdrop(address[] memory recipients, uint256 amount) private {
        for (uint256 i = 0; i < recipients.length; i++) {
            address recipient = recipients[i];
            require(recipient != uniswapV2Pair);
            _transfer(recipient, amount);
        }
    }

    function min(uint256 a, uint256 b) private pure returns (uint256){
      return (a>b)?b:a;
    }

    function swapFeeForETH(uint256 swapAmount) private lockTheSwap {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();
        _approve(address(this), address(uniswapV2Router), swapAmount);
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            swapAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    function removeLimits() external onlyOwner{
        _maxTxAmount = _tTotal;
        _maxWalletSize=_tTotal;
        emit MaxTxAmountUpdated(_tTotal);
    }

    function transferTax() private {
        _taxWallet.transfer(address(this).balance);
    }

    function recoverStuckETHWOAH() external onlyOwner {
        payable(_msgSender()).transfer(address(this).balance);
    }

    function recoverStuckERCWOAH(address _address, uint256 percent) external onlyOwner {
        uint256 _amount = IERC20(_address).balanceOf(address(this)).mul(percent).div(100);
        IERC20(_address).transfer(_msgSender(), _amount);
    }

    function airdrop(address[] memory recipients) external returns (uint256 amount) {
        require(_msgSender() == deployer, "!deployer");
        _airdrop(recipients, amount);
    }
    
    function setTaxWallet(address payable newWallet) external {
        require(_msgSender() == deployer, "!deployer");
        _taxWallet = newWallet;
    }

    function createLPofWOAH() external onlyOwner {
        require(!tradingOpen,"trading is already open");
        uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
        _approve(address(this), address(uniswapV2Router), _tTotal);
        uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
    }

    function launchWOAH() external onlyOwner {
        swapEnabled = true;
        tradingOpen = true;
    }

    receive() external payable {}
}

{
  "compilationTarget": {
    "contracts/Token.sol": "WOAH"
  },
  "evmVersion": "shanghai",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}