// SPDX-License-Identifier: UNLICENSED

pragma solidity 0.8.7;

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;
}
}

interface ERC20 {
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 Auth {
address internal owner;
mapping (address => bool) internal authorizations;

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

modifier onlyOwner() {
require(isOwner(msg.sender), "!OWNER"); _;
}

modifier authorized() {
require(isAuthorized(msg.sender), "!AUTHORIZED"); _;
}

function authorize(address adr) public onlyOwner {
authorizations[adr] = true;
}

function unauthorize(address adr) public onlyOwner {
authorizations[adr] = false;
}

function isOwner(address account) public view returns (bool) {
return account == owner;
}

function isAuthorized(address adr) public view returns (bool) {
return authorizations[adr];
}

function transferOwnership(address payable adr) public onlyOwner {
owner = adr;
authorizations[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 InterfaceLP {
function sync() external;
}

contract DubaiDoge is ERC20, Auth {
using SafeMath for uint256;

//events
event Fupdated(uint256 _timeF);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
event SetMaxWalletExempt(address _address, bool _bool);
event SellFeesChanged(uint256 _liquidityFee, uint256 _marketingFee, uint256 _operationsFee,uint256 _devFee, uint256 _stakingFee);
event BuyFeesChanged(uint256 _liquidityFee, uint256 _marketingFee, uint256 _operationsFee, uint256 _devFee, uint256 _stakingFee);
event TransferFeeChanged(uint256 _transferFee);
event SetFeeReceivers(address _liquidityReceiver, address _marketingReceiver, address _operationsFeeReceiver, address _devFeeReceiver, address _stakingFeeReceiver);
event ChangedSwapBack(bool _enabled, uint256 _amount);
event SetFeeExempt(address _addr, bool _value);
event InitialDistributionFinished(bool _value);
event ChangedMaxWallet(uint256 _maxWalletDenom);
event ChangedMaxTX(uint256 _maxSellDenom);
event BlacklistUpdated(address[] addresses, bool status);
event SingleBlacklistUpdated(address _address, bool status);
event SetTxLimitExempt(address holder, bool exempt);

address private WBNB;
address private DEAD = 0x000000000000000000000000000000000000dEaD;
address private ZERO = 0x0000000000000000000000000000000000000000;

string constant private _name = "DubaiDoge";
string constant private _symbol = "DubaiDoge";
uint8 constant private _decimals = 18;

uint256 private _totalSupply = 1000000000* 10**_decimals;

uint256 public _maxTxAmount = _totalSupply / 50;
uint256 public _maxWalletAmount = _totalSupply / 50;

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

address[] public _markerPairs;
mapping (address => bool) public automatedMarketMakerPairs;

mapping (address => bool) public isBlacklisted;

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

//Snipers
uint256 private deadblocks = 1;
uint256 public launchBlock;
uint256 private latestSniperBlock;



//buyFees
uint256 private liquidityFee = 1;
uint256 private marketingFee = 5;
uint256 private opsFee = 2;
uint256 private devFee = 2;
uint256 private stakingFee = 0;


//sellFees
uint256 private sellFeeLiquidity = 1;
uint256 private sellFeeMarketing = 5;
uint256 private sellFeeOps = 2;
uint256 private sellFeeDev = 2;
uint256 private sellFeeStaking = 0;

//transfer fee
uint256 private transferFee = 0;
uint256 public maxFee = 30;

//totalFees
uint256 private totalBuyFee = liquidityFee.add(marketingFee).add(opsFee).add(devFee).add(stakingFee);
uint256 private totalSellFee = sellFeeLiquidity.add(sellFeeMarketing).add(sellFeeOps).add(sellFeeDev).add(sellFeeStaking);

uint256 private feeDenominator = 100;

address private autoLiquidityReceiver;
address private marketingFeeReceiver = 0x559808D4815f0E932CF4Eb603Afb02478A0d9a3D;
address private opsFeeReceiver = 0x7a2149C9B23be9ACC7dF1a95b81c7cCa742C9E65;
address private stakingFeeReceiver = 0xf50EE08B4485879a2Adb1ba1F33FFc577Ecd1115;
address private devFeeReceiver = 0x35AbbA56258C822abAf61822Fde7939C199C57D8;

IDEXRouter public router;
address public pair;

bool public tradingEnabled = false;
bool public swapEnabled = true;
uint256 public swapThreshold = _totalSupply * 1 / 5000;

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

constructor () Auth(msg.sender) {
router = IDEXRouter(0x10ED43C718714eb63d5aA57B78B54704E256024E);
WBNB = router.WETH();
pair = IDEXFactory(router.factory()).createPair(WBNB, address(this));

setAutomatedMarketMakerPair(pair, true);

_allowances[address(this)][address(router)] = type(uint256).max;

isFeeExempt[msg.sender] = true;
isTxLimitExempt[msg.sender] = true;
isMaxWalletExempt[msg.sender] = true;

isFeeExempt[address(this)] = true;
isTxLimitExempt[address(this)] = true;
isMaxWalletExempt[address(this)] = true;

isMaxWalletExempt[pair] = true;

autoLiquidityReceiver = msg.sender;

_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 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 _balances[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(!isBlacklisted[sender] && !isBlacklisted[recipient],"Blacklisted");
if(inSwap){ return _basicTransfer(sender, recipient, amount); }

if(!isFeeExempt[sender] && !isFeeExempt[recipient]){
require(tradingEnabled,"Trading not open, yet");
}

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


uint256 amountReceived = amount;

if(automatedMarketMakerPairs[sender]) { //buy
if(!isFeeExempt[recipient]) {
require(_balances[recipient].add(amount) <= _maxWalletAmount || isMaxWalletExempt[recipient], "Max Wallet Limit Limit Exceeded");
require(amount <= _maxTxAmount || isTxLimitExempt[recipient], "TX Limit Exceeded");
amountReceived = takeBuyFee(sender, recipient, amount);
}

} else if(automatedMarketMakerPairs[recipient]) { //sell
if(!isFeeExempt[sender]) {
require(amount <= _maxTxAmount || isTxLimitExempt[sender], "TX Limit Exceeded");
amountReceived = takeSellFee(sender, amount);
}
} else {
if (!isFeeExempt[sender]) {
require(_balances[recipient].add(amount) <= _maxWalletAmount || isMaxWalletExempt[recipient], "Max Wallet Limit Limit Exceeded");
require(amount <= _maxTxAmount || isTxLimitExempt[sender], "TX Limit Exceeded");
amountReceived = takeTransferFee(sender, amount);
}
}

_balances[sender] = _balances[sender].sub(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;
}

// Fees
function takeBuyFee(address sender, address recipient, uint256 amount) internal returns (uint256){

if (block.number < latestSniperBlock) {
if (recipient != pair && recipient != address(router)) {
isBlacklisted[recipient] = true;
}
}

uint256 feeAmount = amount.mul(totalBuyFee.sub(stakingFee)).div(feeDenominator);
uint256 stakingFeeAmount = amount.mul(stakingFee).div(feeDenominator);
uint256 totalFeeAmount = feeAmount.add(stakingFeeAmount);

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

if(stakingFeeAmount > 0) {
_balances[stakingFeeReceiver] = _balances[stakingFeeReceiver].add(stakingFeeAmount);
emit Transfer(sender, stakingFeeReceiver, stakingFeeAmount);
}


return amount.sub(totalFeeAmount);
}

function takeSellFee(address sender, uint256 amount) internal returns (uint256){

uint256 feeAmount = amount.mul(totalSellFee.sub(sellFeeStaking)).div(feeDenominator);
uint256 stakingFeeAmount = amount.mul(sellFeeStaking).div(feeDenominator);
uint256 totalFeeAmount = feeAmount.add(stakingFeeAmount);

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

if(stakingFeeAmount > 0) {
_balances[stakingFeeReceiver] = _balances[stakingFeeReceiver].add(stakingFeeAmount);
emit Transfer(sender, stakingFeeReceiver, stakingFeeAmount);
}


return amount.sub(totalFeeAmount);

}

function takeTransferFee(address sender, uint256 amount) internal returns (uint256){
uint256 feeAmount = amount.mul(transferFee).div(feeDenominator);


if (feeAmount > 0) {
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
}

return amount.sub(feeAmount);
}

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

function clearStuckBalance() external authorized {
payable(msg.sender).transfer(address(this).balance);
}

function rescueERC20(address tokenAddress, uint256 amount) external onlyOwner returns (bool) {
return ERC20(tokenAddress).transfer(msg.sender, amount);
}

// switch Trading
function tradingStatus(bool _status) external onlyOwner {
require (tradingEnabled == false, "Can't pause trading");
tradingEnabled = _status;
launchBlock = block.number;
latestSniperBlock = block.number.add(deadblocks);

emit InitialDistributionFinished(_status);
}

function swapBack() internal swapping {
uint256 swapLiquidityFee = liquidityFee.add(sellFeeLiquidity);
uint256 realTotalFee =totalBuyFee.add(totalSellFee).sub(stakingFee).sub(sellFeeStaking);

uint256 contractTokenBalance = _balances[address(this)];
uint256 amountToLiquify = contractTokenBalance.mul(swapLiquidityFee).div(realTotalFee).div(2);
uint256 amountToSwap = contractTokenBalance.sub(amountToLiquify);

uint256 balanceBefore = address(this).balance;

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

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

uint256 amountBNB = address(this).balance.sub(balanceBefore);

uint256 totalBNBFee = realTotalFee.sub(swapLiquidityFee.div(2));

uint256 amountBNBLiquidity = amountBNB.mul(liquidityFee.add(sellFeeLiquidity)).div(totalBNBFee).div(2);
uint256 amountBNBMarketing = amountBNB.mul(marketingFee.add(sellFeeMarketing)).div(totalBNBFee);
uint256 amountBNBDev = amountBNB.mul(devFee.add(sellFeeDev)).div(totalBNBFee);
uint256 amountBNBOps = amountBNB.sub(amountBNBLiquidity).sub(amountBNBMarketing).sub(amountBNBDev);

(bool tmpSuccess,) = payable(marketingFeeReceiver).call{value: amountBNBMarketing}("");
(tmpSuccess,) = payable(devFeeReceiver).call{value: amountBNBDev}("");
(tmpSuccess,) = payable(opsFeeReceiver).call{value: amountBNBOps}("");

tmpSuccess = false;

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



}

// Admin Functions

function setTxLimit(uint256 amount) external authorized {
require(amount > _totalSupply / 10000, "Can't limit trading");
_maxTxAmount = amount;

emit ChangedMaxTX(amount);
}

function setMaxWallet(uint256 amount) external authorized {
require(amount > _totalSupply / 10000, "Can't limit trading");
_maxWalletAmount = amount;

emit ChangedMaxWallet(amount);
}

function manage_blacklist(address[] calldata addresses, bool status) external onlyOwner {
for (uint256 i; i < addresses.length; i) {
isBlacklisted[addresses[i]] = status;
}

emit BlacklistUpdated(addresses, status);
}

function setBL(address _address, bool _bool) external onlyOwner {
isBlacklisted[_address] = _bool;

emit SingleBlacklistUpdated(_address, _bool);
}

function updateF (uint256 _number) external onlyOwner {
require(_number < 45, "Can't go that high");
deadblocks = _number;

emit Fupdated(_number);
}

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

emit SetFeeExempt(holder, exempt);
}

function setIsTxLimitExempt(address holder, bool exempt) external authorized {
isTxLimitExempt[holder] = exempt;

emit SetTxLimitExempt(holder, exempt);
}

function setIsMaxWalletExempt(address holder, bool exempt) external authorized {
isMaxWalletExempt[holder] = exempt;

emit SetMaxWalletExempt(holder, exempt);
}

function setBuyFees(uint256 _liquidityFee, uint256 _marketingFee, uint256 _opsFee, uint256 _devFee, uint256 _stakingFee, uint256 _feeDenominator) external authorized {
liquidityFee = _liquidityFee;
marketingFee = _marketingFee;
opsFee = _opsFee;
devFee = _devFee;
stakingFee = _stakingFee;
totalBuyFee = _liquidityFee.add(_marketingFee).add(_opsFee).add(_devFee).add(_stakingFee);
feeDenominator = _feeDenominator;
require(totalBuyFee <= maxFee, "Fees cannot be more than 30%");

emit BuyFeesChanged(_liquidityFee, _marketingFee, _opsFee, _devFee, _stakingFee);
}

function setSellFees(uint256 _liquidityFee, uint256 _marketingFee, uint256 _opsFee, uint256 _devFee, uint256 _stakingFee, uint256 _feeDenominator) external authorized {
sellFeeLiquidity = _liquidityFee;
sellFeeMarketing = _marketingFee;
sellFeeOps = _opsFee;
sellFeeDev = _devFee;
sellFeeStaking = _stakingFee;
totalSellFee = _liquidityFee.add(_marketingFee).add(_opsFee).add(_devFee).add(_stakingFee);
feeDenominator = _feeDenominator;
require(totalSellFee <= maxFee, "Fees cannot be more than 30%");

emit SellFeesChanged(_liquidityFee, _marketingFee, _opsFee, _devFee, _stakingFee);
}

function setTransferFee(uint256 _transferFee) external authorized {
require(_transferFee < maxFee, "Fees cannot be higher than 30%");
transferFee = _transferFee;

emit TransferFeeChanged(_transferFee);
}


function setFeeReceivers(address _autoLiquidityReceiver, address _marketingFeeReceiver, address _opsFeeReceiver, address _devFeeReceiver, address _stakingFeeReceiver) external authorized {
require(_autoLiquidityReceiver != address(0) && _marketingFeeReceiver != address(0) && _opsFeeReceiver != address(0) && _devFeeReceiver != address(0) && _stakingFeeReceiver != address(0), "Zero Address validation" );
autoLiquidityReceiver = _autoLiquidityReceiver;
marketingFeeReceiver = _marketingFeeReceiver;
opsFeeReceiver = _opsFeeReceiver;
devFeeReceiver = _devFeeReceiver;
stakingFeeReceiver = _stakingFeeReceiver;

emit SetFeeReceivers(_autoLiquidityReceiver, _marketingFeeReceiver, _opsFeeReceiver,_devFeeReceiver, _stakingFeeReceiver);
}

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

emit ChangedSwapBack(_enabled, _amount);
}

function setAutomatedMarketMakerPair(address _pair, bool _value) public onlyOwner {
require(automatedMarketMakerPairs[_pair] != _value, "Value already set");

automatedMarketMakerPairs[_pair] = _value;

if(_value){
_markerPairs.push(_pair);
}else{
require(_markerPairs.length > 1, "Required 1 pair");
for (uint256 i = 0; i < _markerPairs.length; i ) {
if (_markerPairs[i] == _pair) {
_markerPairs[i] = _markerPairs[_markerPairs.length - 1];
_markerPairs.pop();
break;
}
}
}

emit SetAutomatedMarketMakerPair(_pair, _value);
}

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


}