// AUTO LP 
// 3/3 TAX --> LP
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
    return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
    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);
}
library Address {
function isContract(address account) internal view returns (bool) {
    // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
    // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
    // for accounts without code, i.e. `keccak256('')`
    bytes32 codehash;
    bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
    // solhint-disable-next-line no-inline-assembly
    assembly { codehash := extcodehash(account) }
    return (codehash != accountHash && codehash != 0x0);
}
function sendValue(address payable recipient, uint256 amount) internal {
    require(address(this).balance >= amount, "Address: insufficient balance");
    // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
    (bool success, ) = recipient.call{ value: amount }("");
    require(success, "Address: unable to send value, recipient may have reverted");
}
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
  return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
    return _functionCallWithValue(target, data, 0, errorMessage);
}
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
    return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
    require(address(this).balance >= value, "Address: insufficient balance for call");
    return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
    require(isContract(target), "Address: call to non-contract");
    (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
    if (success) {
        return returndata;
    } else {
    
        if (returndata.length > 0) {
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
 * @dev Initializes the contract setting the deployer as the initial owner.
 */
constructor() {
    _setOwner(_msgSender());
}
/**
 * @dev Returns the address of the current owner.
 */
function owner() public view virtual returns (address) {
    return _owner;
}
/**
 * @dev Throws if called by any account other than the owner.
 */
modifier onlyOwner() {
    require(owner() == _msgSender(), "Ownable: caller is not the owner");
    _;
}
/**
 * @dev Leaves the contract without owner. It will not be possible to call
 * `onlyOwner` functions anymore. Can only be called by the current owner.
 *
 * NOTE: Renouncing ownership will leave the contract without an owner,
 * thereby removing any functionality that is only available to the owner.
 */
function renounceOwnership() public virtual onlyOwner {
    _setOwner(address(0));
}
/**
 * @dev Transfers ownership of the contract to a new account (`newOwner`).
 * Can only be called by the current owner.
 */
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 USA is Context,IERC20, Ownable{
using Address for address;
string private _name = "USA LFG";
string private _symbol = "$USALFG";
uint8 private _decimals = 18;
uint256 totalFeeFortx = 0;
  uint256 maxWalletTreshold = 1;
uint256 maxTxTreshold = 2;
uint256 private swapTreshold =1;
uint256 private currentThreshold = 10; //Once the token value goes up this number can be decreased (To reduce price impact on asset)
uint256 private _totalSupply = (10000000 * 10**4) * 10**_decimals; //
uint256 public requiredTokensToSwap = _totalSupply * swapTreshold /1000;
mapping (address => uint256) private _balances;
mapping (address => bool) private _excludedFromFees;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) public automatedMarketMakerPairs;
address _owner;
address payable public marketingAddress = payable(0x68c6AbEcC5842aB6c4514856eE0FDcd7646d07ec);
uint256 maxWalletAmount = _totalSupply*maxWalletTreshold/200; // starting 2%
uint256 maxTxAmount = _totalSupply*maxTxTreshold/100;
mapping (address => bool) botWallets;
bool botTradeEnabled = false;
bool checkWalletSize = true;
mapping (address => bool) private _liquidityHolders;
mapping (address => bool) private presaleAddresses;
//3% Buy Tax + 3% Sell Tax 
uint256 private buyliqFee = 3; //3
uint256 private buyprevLiqFee = 0;
uint256 private buymktFee = 0;//0
uint256 private buyPrevmktFee = 0;
bool private tradeEnabled = false;
 uint256 private sellliqFee = 3;
uint256 private sellprevLiqFee = 0;
uint256 private sellmktFee = 0;
uint256 private sellPrevmktFee = 0;
 bool public inSwapAndLiquify;
bool public swapAndLiquifyEnabled = true;
address public immutable deadAddress = 0x000000000000000000000000000000000000dEaD;
uint256 private mktTokens = 0;
uint256 private liqTokens = 0;
 event SwapAndLiquify(uint256 tokensSwapped,
    uint256 ethReceived,
    uint256 tokensIntoLiquidity
);
event tokensSwappedDuringTokenomics(uint256 amount);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
 // 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
IUniswapV2Router02 _router;
address public uniswapV2Pair;
//Balances tracker
modifier lockTheSwap{
    inSwapAndLiquify = true;
    _;
    inSwapAndLiquify = false;
}
 constructor(){
    _balances[_msgSender()] = _totalSupply;
    //0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D mainnet and all networks
    IUniswapV2Router02 _uniRouter = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
     uniswapV2Pair = IUniswapV2Factory(_uniRouter.factory())
        .createPair(address(this), _uniRouter.WETH());
     _excludedFromFees[owner()] = true;     
    _excludedFromFees[address(this)] = true;// exclude owner and contract instance from fees
    _router = _uniRouter;
    _liquidityHolders[address(_router)] = true;
    _liquidityHolders[owner()] = true;
    _liquidityHolders[address(this)] = true;
    _setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
    emit Transfer(address(0),_msgSender(),_totalSupply);
}
receive() external payable{}
//general token data and tracking of balances to be swapped.
function getOwner()external view returns(address){
        return owner();
}
function currentmktTokens() external view returns (uint256){
        return mktTokens;
 }
 function currentLiqTokens() external view returns (uint256){
        return liqTokens;
 }
 function totalSupply() external view override returns (uint256){
        return _totalSupply;
 }
function balanceOf(address account) public view override returns (uint256){
    return _balances[account];
}
function transfer(address recipient, uint256 amount) external override returns (bool){
        _transfer(_msgSender(),recipient,amount);
        return true;
}
function allowance(address owner, address spender) external view override returns (uint256){
        return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) external override returns (bool){
        _approve(_msgSender(),spender,amount);
        return true;
}
function decimals()external view returns(uint256){
    return _decimals;
}
function name() external view returns (string memory) {
    return _name;
}
function symbol() external view returns (string memory){
    return _symbol;
}
    function updateMaxTxTreshold(uint256 newVal) public onlyOwner{
    maxTxTreshold = newVal;
    maxTxAmount = _totalSupply*maxTxTreshold/100;// 1%
}
 function updateMaxWalletTreshold(uint256 newVal) public onlyOwner{
    maxWalletTreshold = newVal;
    maxWalletAmount = _totalSupply*maxWalletTreshold/100;
}
 function transferFrom(
    address sender,
    address recipient,
    uint256 amount
) public override returns (bool){
    require(amount <= _allowances[sender][_msgSender()], "ERC20: transfer amount exceeds allowance");
    _transfer(sender, recipient, amount);
    _approve(sender, _msgSender(), _allowances[sender][_msgSender()] - amount);
    return true;
}
//Tokenomics related functions
function addBotWallet (address payable detectedBot, bool isBot) public onlyOwner{
    botWallets[detectedBot] = isBot;
}
function currentbuyliqFee() public view returns (uint256){
        return buyliqFee;
}
function currentbuymktfee() public view returns (uint256){
        return buymktFee;
}
  function currentsellLiqFee() public view returns (uint256){
        return sellliqFee;
}
function currentsellmktfee() public view returns (uint256){
        return sellmktFee;
}
function currentThresholdInt()public view returns (uint256){
    return currentThreshold;
}
function isExcluded(address toCheck)public view returns (bool){
        return _excludedFromFees[toCheck];
}
function _transfer(address from, address to, uint256 amount) internal{
     require(from != address(0), "ERC20: transfer from the zero address");
    require(to != address(0), "ERC20: transfer to the zero address");
    require(amount > 0,"ERC20: transfered amount must be greater than zero");
    uint256 senderBalance = _balances[from];
    require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
    if(tradeEnabled == false){
        require(_liquidityHolders[to] || _liquidityHolders[from],"Cant trade, trade is disabled");
    }
    if(_liquidityHolders[to]==false && _liquidityHolders[from]==false){
    require(amount <= maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
     if(from == uniswapV2Pair){
            require(balanceOf(to)+amount <= maxWalletAmount);
        }
    }
    uint256 inContractBalance = balanceOf(address(this));
    if(inContractBalance >=requiredTokensToSwap &&
        !inSwapAndLiquify &&
        from != uniswapV2Pair &&
        swapAndLiquifyEnabled){
            if(inContractBalance >= requiredTokensToSwap ){
                inContractBalance = requiredTokensToSwap;
                swapForTokenomics(inContractBalance);
            }
        }
        bool takeFees = true;
    
    
        if(_excludedFromFees[from] || _excludedFromFees[to]) {
            totalFeeFortx = 0;
            takeFees = false;
       
        }
        uint256 mktAmount = 0;
        uint256 liqAmount = 0;  // Amount to be added to liquidity.
        if(takeFees){
        
        
            //bot fees
            if(botWallets[from] == true||botWallets[to]==true){
                revert("No bots can trade");
            }
            //Selling fees
            if (automatedMarketMakerPairs[to] && to != address(_router) ){
                    totalFeeFortx = 0;
                    mktAmount = amount * sellmktFee/100;
                    liqAmount = amount * sellliqFee/100;
                    totalFeeFortx = mktAmount + liqAmount;
            }
            //Buy Fees
            else if(automatedMarketMakerPairs[from] && from != address(_router)) {
        
                totalFeeFortx = 0;
                mktAmount = amount * buymktFee/100;
                liqAmount = amount * buyliqFee/100;
                totalFeeFortx = mktAmount + liqAmount ;
            }
        
        }
        _balances[from] = senderBalance - amount;
        _balances[to] += amount - mktAmount - liqAmount;
      if(liqAmount != 0) {
        _balances[address(this)] += totalFeeFortx;
        //tLiqTotal += liqAmount;
        liqTokens += liqAmount;
        mktTokens += mktAmount;
        emit Transfer(from, address(this), totalFeeFortx);
    
        }
        emit Transfer(from, to,amount-totalFeeFortx);
    
 }
function swapForTokenomics(uint256 balanceToswap) private lockTheSwap{
    swapAndLiquify(liqTokens);
    swapTokensForETHmkt(mktTokens);
    emit tokensSwappedDuringTokenomics(balanceToswap);
    mktTokens = 0;
    liqTokens = 0;
}
 function addLimitExempt(address newAddress)external onlyOwner{
    _liquidityHolders[newAddress] = true;
}
function swapTokensForETHmkt(uint256 amount)private {
    address[] memory path = new address[](2);
    path[0] = address(this);
    path[1] = _router.WETH();
    _approve(address(this), address(_router), amount);
     _router.swapExactTokensForETHSupportingFeeOnTransferTokens(
        amount,
        0, // Accept any amount of ETH.
        path,
        marketingAddress,
        block.timestamp
    );
}
function unstuckTokens (IERC20 tokenToClear, address payable destination, uint256 amount) public onlyOwner{
    //uint256 contractBalance = tokenToClear.balanceOf(address(this));
    tokenToClear.transfer(destination, amount);
}
function unstuckETH(address payable destination) public onlyOwner{
    uint256 ethBalance = address(this).balance;
    payable(destination).transfer(ethBalance);
}
function tradeStatus(bool status) public onlyOwner{
    tradeEnabled = status;
}
function swapAndLiquify(uint256 liqTokensPassed) private {
    uint256 half = liqTokensPassed / 2;
    uint256 otherHalf = liqTokensPassed - half;
    uint256 initialBalance = address(this).balance;
    swapTokensForETH(half);
    uint256 newBalance = address(this).balance - (initialBalance);
    addLiquidity(otherHalf, newBalance);
    emit SwapAndLiquify(half,newBalance,otherHalf);
}
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, // Accept any amount of ETH.
        path,
        address(this),
        block.timestamp
    );
}
 function addLiquidity(uint256 tokenAmount,uint256 ethAmount) private{
    _approve(address(this), address(_router), tokenAmount);
    _router.addLiquidityETH{value:ethAmount}(
        address(this),
        tokenAmount,
        0,
        0,
        deadAddress,// tr
        block.timestamp
    );
}
function _approve(address owner,address spender, uint256 amount) internal{
    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);
}
//Fees related functions
function addToExcluded(address toExclude) public onlyOwner{
    _excludedFromFees[toExclude] = true;
}
function removeFromExcluded(address toRemove) public onlyOwner{
    _excludedFromFees[toRemove] = false;
}
function updateThreshold(uint newThreshold) public onlyOwner{
    currentThreshold = newThreshold;
}
function setSwapAndLiquify(bool _enabled) public onlyOwner{
        swapAndLiquifyEnabled = _enabled;
}
//Marketing related
function setMktAddress(address newAddress) external onlyOwner{
    marketingAddress = payable(newAddress);
}
function transferAssetsETH(address payable to, uint256 amount) internal{
        to.transfer(amount);
}
function setAutomatedMarketMakerPair(address pair, bool value) public onlyOwner {
    require(pair != uniswapV2Pair, "The pair cannot be removed from automatedMarketMakerPairs");
    _setAutomatedMarketMakerPair(pair, value);
}
function _setAutomatedMarketMakerPair(address pair, bool value) private {
    automatedMarketMakerPairs[pair] = value;
    emit SetAutomatedMarketMakerPair(pair, value);
}
function updatecurrentbuyliqFee(uint256 newAmount) public onlyOwner{
        buyliqFee = newAmount;
}
function updatecurrentbuymktfee(uint256 newAmount) public onlyOwner{
         buymktFee= newAmount;
}
  function updatecurrentsellLiqFee(uint256 newAmount) public onlyOwner{
         sellliqFee= newAmount;
}
function updatecurrentsellmktfee(uint256 newAmount)public onlyOwner{
         sellmktFee= newAmount;
}
function currentMaxWallet() public view returns(uint256){
    return maxWalletAmount;
}
function currentMaxTx() public view returns(uint256){
    return maxTxAmount;
}
function updateSwapTreshold(uint256 newVal) public onlyOwner{
    swapTreshold = newVal;
    requiredTokensToSwap = _totalSupply*swapTreshold/1000;
 }
function currentTradeStatus() public view returns (bool){
    return tradeEnabled;
}
function currentSwapTreshold() public view returns(uint256){
    return swapTreshold;
}
function currentTokensToSwap() public view returns(uint256){
    return requiredTokensToSwap;
}
}
interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);
function createPair(address tokenA, address tokenB) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);
function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);
function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;
event Mint(address indexed sender, uint amount0, uint amount1);
event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
    address indexed sender,
    uint amount0In,
    uint amount1In,
    uint amount0Out,
    uint amount1Out,
    address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);
function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
    address tokenA,
    address tokenB,
    uint amountADesired,
    uint amountBDesired,
    uint amountAMin,
    uint amountBMin,
    address to,
    uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
    address token,
    uint amountTokenDesired,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function removeLiquidity(
    address tokenA,
    address tokenB,
    uint liquidity,
    uint amountAMin,
    uint amountBMin,
    address to,
    uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
    address token,
    uint liquidity,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
    address tokenA,
    address tokenB,
    uint liquidity,
    uint amountAMin,
    uint amountBMin,
    address to,
    uint deadline,
    bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
    address token,
    uint liquidity,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline,
    bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
    uint amountIn,
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
    uint amountOut,
    uint amountInMax,
    address[] calldata path,
    address to,
    uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
    external
    payable
    returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
    external
    returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
    external
    returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
    external
    payable
    returns (uint[] memory amounts);
function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
    address token,
    uint liquidity,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
    address token,
    uint liquidity,
    uint amountTokenMin,
    uint amountETHMin,
    address to,
    uint deadline,
    bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
    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 swapExactTokensForETHSupportingFeeOnTransferTokens(
    uint amountIn,
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external;
}