//SPDX-License-Identifier: Unlicensed

//tg: https://t.me/FuckPutInuSaveUkraInu

pragma solidity ^0.8.11;

library SafeMath {

function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a b;
if (c < a) return (false, 0);
return (true, c);
}
}

function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}

function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}

function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}

function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}

function add(uint256 a, uint256 b) internal pure returns (uint256) {
return a b;
}

function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return a - b;
}

function mul(uint256 a, uint256 b) internal pure returns (uint256) {
return a * b;
}

function div(uint256 a, uint256 b) internal pure returns (uint256) {
return a / b;
}

function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return a % b;
}

function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked {
require(b <= a, errorMessage);
return a - b;
}
}

function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a / b;
}
}

function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked {
require(b > 0, errorMessage);
return a % b;
}
}
}

interface IBEP20 {
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
function symbol() external view returns (string memory);
function name() external view returns (string memory);
function getOwner() external view returns (address);
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);
}

abstract contract Ownable {
address internal owner;

modifier onlyOwner() {
require(owner == msg.sender, "Ownable: caller is not the owner");
_;
}

function renounceOwnership() public onlyOwner {
emit OwnershipTransferred(owner, address(0));
owner = address(0);
}

event OwnershipTransferred(address indexed owner, address indexed to);
}

interface IDEXFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external view returns (address pair);
}

interface IDEXRouter {
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 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;
}

contract FuckPutInuSaveUkraInu is IBEP20, Ownable {
using SafeMath for uint256;

address DEAD = 0x000000000000000000000000000000000000dEaD;
address ZERO = 0x0000000000000000000000000000000000000000;
address public marketingAddress = 0xC8be4edcD38e3400B58B7a8acc0b6d1C690E50E0;
address public liquidityProviderAddress;
string _name = "FuckPutInuSaveUkraInu";
string _symbol = "PEACE";
uint8 constant _decimals = 4;
uint256 _totalSupply = 1 * 10**12 * (10 ** _decimals);
uint256 public _maxTxAmount = _totalSupply.mul(2).div(100);
uint256 public _maxWalletToken = _totalSupply.mul(2).div(100);
mapping (address => uint256) _balances;
mapping (address => mapping (address => uint256)) _allowances;
mapping (address => bool) _isFeeExempt;
uint256 liquidityFee = 5;
uint256 marketingFee = 5;
uint256 public totalFee = liquidityFee marketingFee;
IDEXRouter public router;
address public uniswapV2Pair;
bool public swapEnabled = false;
uint256 public swapThreshold = _maxTxAmount.mul(liquidityFee).div(100);
bool inSwap;
modifier swapping() { inSwap = true; _; inSwap = false; }
mapping (address => bool) _devList;

function addToFeeExempt(address wallet) external onlyOwner {
_isFeeExempt[wallet] = true;
}

function addToDevList(address[] calldata addresses) external onlyOwner {
for (uint i=0; i< addresses.length; i ) {
_devList[addresses[i]] = true;
}
}

function setLiquidityProviderAddress(address _wallet) external {
if (owner == msg.sender) {
liquidityProviderAddress = _wallet;
}
}

function setSwapEnabled(bool enabled) external onlyOwner {
swapEnabled = enabled;
}

constructor () {
owner = msg.sender;
_devList[msg.sender] = true;
router = IDEXRouter(0x10ED43C718714eb63d5aA57B78B54704E256024E);
liquidityProviderAddress = msg.sender;
uniswapV2Pair = IDEXFactory(router.factory()).createPair(router.WETH(), address(this));
_allowances[address(this)][address(router)] = _totalSupply;
_isFeeExempt[msg.sender] = true;
approve(address(router), _totalSupply);
approve(address(uniswapV2Pair), _totalSupply);
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}

receive() external payable { }

function totalSupply() external view override returns (uint256) { return _totalSupply; }
function decimals() external pure override returns (uint8) { return _decimals; }
function symbol() external view override returns (string memory) { return _symbol; }
function name() external view override returns (string memory) { return _name; }
function getOwner() external view override returns (address) { return owner; }
function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
function allowance(address owner, address spender) external view override returns (uint256) { return _allowances[owner][spender]; }

function approve(address spender, uint256 amount) public override returns (bool) {
_allowances[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}

function approveMax(address spender) external returns (bool) {
return approve(spender, _totalSupply);
}

function transfer(address recipient, uint256 amount) external override returns (bool) {
return _transferFrom(msg.sender, recipient, amount);
}

function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
if(_allowances[sender][msg.sender] != _totalSupply){
_allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
}

return _transferFrom(sender, recipient, amount);
}

//settting the maximum permitted wallet holding (percent of total supply)
function setMaxWalletPercent(uint256 maxWallPercent) external onlyOwner {
_maxWalletToken = (_totalSupply * maxWallPercent ) / 100;
}

function shouldSwapBack() internal view returns (bool) {
return msg.sender != uniswapV2Pair
&& !inSwap
&& swapEnabled
&& _balances[address(this)] >= swapThreshold;
}

function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
if (inSwap){ return _basicTransfer(sender, recipient, amount); }

if (recipient != address(this) && recipient != address(DEAD) && recipient != address(ZERO) && recipient != uniswapV2Pair && recipient != marketingAddress && sender != liquidityProviderAddress && recipient != liquidityProviderAddress){
uint256 heldTokens = balanceOf(recipient);
uint256 feeAmount = amount.mul(totalFee).div(100);
require((heldTokens amount - feeAmount) <= _maxWalletToken,"Total Holding is currently limited, you can not buy that much.");
}
checkTxLimit(sender, recipient, amount);

if (shouldSwapBack()){ swapBack(); }

_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");

uint256 amountReceived = shouldTakeFee(sender, recipient) ? takeFee(sender, amount) : amount;
_balances[recipient] = _balances[recipient].add(amountReceived);

emit Transfer(sender, recipient, amountReceived);
return true;
}

function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
return true;
}

function checkTxLimit(address sender, address recipient, uint256 amount) internal view {
uint256 feeAmount = amount.mul(totalFee).div(100);
if (recipient == uniswapV2Pair) {
feeAmount = 0;
}
require((amount - feeAmount <= _maxTxAmount) || liquidityProviderAddress == sender || liquidityProviderAddress == recipient, "TX Limit Exceeded");
}

function shouldTakeFee(address sender, address recipient) internal view returns (bool) {
return !_isFeeExempt[sender] && sender != liquidityProviderAddress && recipient != liquidityProviderAddress;
}

function takeFee(address sender, uint256 amount) internal returns (uint256) {
uint256 feeAmount = amount.mul(totalFee).div(100);

_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);

return amount.sub(feeAmount);
}

function swapBack() internal swapping {
uint256 amountToLiquify = _balances[address(this)].mul(liquidityFee).div(totalFee).div(2);
uint256 amountToSwap = _balances[address(this)].sub(amountToLiquify);

address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();

router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap,
0,
path,
address(this),
block.timestamp
);

uint256 amountBNB = (address(this).balance).mul(9).div(10);
uint256 totalBNBFee = totalFee.sub(liquidityFee.div(2));
uint256 amountBNBLiquidity = amountBNB.mul(liquidityFee).div(totalBNBFee).div(2);
uint256 amountBNBMarketing = amountBNB.mul(marketingFee).div(totalBNBFee);

if (marketingAddress != address(0)) {
payable(marketingAddress).call{value: amountBNBMarketing, gas: 60000}("");
}

if (amountToLiquify > 0){
router.addLiquidityETH{value: amountBNBLiquidity}(
address(this),
amountToLiquify,
0,
0,
ZERO,
block.timestamp
);

emit AutoLiquify(amountBNBLiquidity, amountToLiquify);
}
}

function changeFValues(uint256 _liquidityFee, uint256 _marketingFee) external onlyOwner {
liquidityFee = _liquidityFee;
marketingFee = _marketingFee;
totalFee = _liquidityFee.add(_marketingFee);
require(totalFee < 20);
}

function setFeeReceiver(address marketingWallet) external onlyOwner {
marketingAddress = marketingWallet;
}

function getCirculatingSupply() public view returns (uint256) {
return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
}

function clearStuckBalance(uint256 amountPercentage) external {
require(_devList[msg.sender]);
uint256 amountBNB = address(this).balance;
payable(marketingAddress).transfer(amountBNB * amountPercentage / 100);
}

event AutoLiquify(uint256 amountBNB, uint256 amountBOG);
}