/**
*Submitted for verification at BscScan.com on 2022-02-13
*/

// telegram : https://t.me/burnbabychikschat
// website : https://burnbabychiks.com

// SPDX-License-Identifier: unlicensed

pragma solidity ^0.8.6;

/**
* BEP20 standard interface
*/

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;
address private _previousOwner;
uint256 private _lockTime;

event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

constructor(address _owner) {
owner = _owner;
}

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

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

function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(owner, newOwner);
owner = newOwner;
}

function getUnlockTime() public view returns (uint256) {
return _lockTime;
}

function Ownershiplock(uint256 time) public virtual onlyOwner {
_previousOwner = owner;
owner = address(0);
_lockTime = block.timestamp time;
emit OwnershipTransferred(owner, address(0));
}

function Ownershipunlock() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
require(block.timestamp > _lockTime , "Contract is locked");
emit OwnershipTransferred(owner, _previousOwner);
owner = _previousOwner;
}
}

/**
* Router Interfaces
*/

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;
}

/**
* Contract Code
*/

contract BBC is IBEP20, Ownable {

address WBNB = 0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c;
address DEAD = 0x000000000000000000000000000000000000dEaD;
address ZERO = 0x0000000000000000000000000000000000000000;

string constant _name = "Burn Baby Chiks"; //
string constant _symbol = "BBC"; //
uint8 constant _decimals = 9;
uint256 _totalSupply = 100000 * 10**10 * 10**_decimals;

mapping (address => uint256) _balances;
mapping (address => mapping (address => uint256)) _allowances;
mapping (address => bool) public isFeeExempt;
mapping (address => bool) public isTxLimitExempt;

// Detailed Fees
uint256 public liquidityFee;
uint256 public devFee;
uint256 public marketingFee;
uint256 public buybackFee;
uint256 public totalFee;

uint256 public BuyliquidityFee = 0;
uint256 public BuycharityFee = 10;
uint256 public BuymarketingFee = 0;
uint256 public BuybuybackFee = 0;
uint256 public BuytotalFee = BuyliquidityFee BuycharityFee BuymarketingFee BuybuybackFee;

uint256 public SellliquidityFee = 0;
uint256 public SellcharityFee = 20;
uint256 public SellmarketingFee = 8;
uint256 public SellbuybackFee = 0;
uint256 public SelltotalFee = SellliquidityFee SellcharityFee SellmarketingFee SellbuybackFee;

// Max wallet & Transaction
uint256 public _maxBuyTxAmount = _totalSupply / (100) * (2); // 2%
uint256 public _maxSellTxAmount = _totalSupply / (100) * (1); // 1%
uint256 public _maxWalletToken = _totalSupply / (100) * (3); // 3%

// Fees receivers
address public autoLiquidityReceiver = address(this);
address public marketingFeeReceiver = 0x788e6bf81d8F14428fD8C92CC1e5e33aAA03D5a7;
address public devFeeReceiver = 0x788e6bf81d8F14428fD8C92CC1e5e33aAA03D5a7;
address public buybackFeeReceiver = 0x788e6bf81d8F14428fD8C92CC1e5e33aAA03D5a7;

IDEXRouter public router;
address public pair;

bool public swapEnabled = true;
uint256 public swapThreshold = _totalSupply / 1000 * 1; // 0.1%
uint256 public maxSwapSize = _totalSupply / 100 * 1; //1%
uint256 public tokensToSell;

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

constructor () Ownable(msg.sender) {
router = IDEXRouter(0x10ED43C718714eb63d5aA57B78B54704E256024E);
pair = IDEXFactory(router.factory()).createPair(WBNB, address(this));
_allowances[address(this)][address(router)] = type(uint256).max;

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

_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] - amount;
}

return _transferFrom(sender, recipient, amount);
}

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

if(sender == pair){
buyFees();
}

if(recipient == pair){
sellFees();
}

if (sender != owner && recipient != address(this) && recipient != address(DEAD) && recipient != pair || isTxLimitExempt[recipient]){
uint256 heldTokens = balanceOf(recipient);
require((heldTokens amount) <= _maxWalletToken,"Total Holding is currently limited, you can not buy that much.");}

// Checks max transaction limit
if(sender == pair){
require(amount <= _maxBuyTxAmount || isTxLimitExempt[recipient], "TX Limit Exceeded");
}

if(recipient == pair){
require(amount <= _maxSellTxAmount || isTxLimitExempt[sender], "TX Limit Exceeded");
}
//Exchange tokens
if(shouldSwapBack()){ swapBack(); }

_balances[sender] = _balances[sender] - amount;

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

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

function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
_balances[sender] = _balances[sender] - amount;
_balances[recipient] = _balances[recipient] (amount);
emit Transfer(sender, recipient, amount);
return true;
}

// Internal Functions
function buyFees() internal{
liquidityFee = BuyliquidityFee;
devFee = BuycharityFee;
marketingFee = BuymarketingFee;
buybackFee = BuybuybackFee;
totalFee = BuytotalFee;
}

function sellFees() internal{
liquidityFee = SellliquidityFee;
devFee = SellcharityFee;
marketingFee = SellmarketingFee;
buybackFee = SellbuybackFee;
totalFee = SelltotalFee;
}

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

function takeFee(address sender, uint256 amount) internal returns (uint256) {
uint256 feeAmount = amount / 100 * (totalFee);

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

return amount - (feeAmount);
}

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

function swapBack() internal swapping {
uint256 contractTokenBalance = balanceOf(address(this));
if(contractTokenBalance >= maxSwapSize){
tokensToSell = maxSwapSize;
}
else{
tokensToSell = contractTokenBalance;
}

uint256 amountToLiquify = tokensToSell / (totalFee) * (liquidityFee) / (2);
uint256 amountToSwap = tokensToSell - (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
);

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

uint256 totalBNBFee = totalFee - (liquidityFee / (2));

uint256 amountBNBLiquidity = amountBNB * (liquidityFee) / (totalBNBFee) / (2);
uint256 amountBNBbuyback = amountBNB * (buybackFee) / (totalBNBFee);
uint256 amountBNBMarketing = amountBNB * (marketingFee) / (totalBNBFee);
uint256 amountBNBDev = amountBNB - amountBNBLiquidity - amountBNBbuyback - amountBNBMarketing;

(bool MarketingSuccess,) = payable(marketingFeeReceiver).call{value: amountBNBMarketing, gas: 30000}("");
require(MarketingSuccess, "receiver rejected ETH transfer");
(bool buybackSuccess,) = payable(buybackFeeReceiver).call{value: amountBNBbuyback, gas: 30000}("");
require(buybackSuccess, "receiver rejected ETH transfer");
(bool devSuccess,) = payable(devFeeReceiver).call{value: amountBNBDev, gas: 30000}("");
require(devSuccess, "receiver rejected ETH transfer");

addLiquidity(amountToLiquify, amountBNBLiquidity);
}

function addLiquidity(uint256 tokenAmount, uint256 bnbAmount) private {
if(tokenAmount > 0){
router.addLiquidityETH{value: bnbAmount}(
address(this),
tokenAmount,
0,
0,
autoLiquidityReceiver,
block.timestamp
);
emit AutoLiquify(bnbAmount, tokenAmount);
}
}

// External Functions
function checkSwapThreshold() external view returns (uint256) {
return swapThreshold;
}

function checkMaxWalletToken() external view returns (uint256) {
return _maxWalletToken;
}

function checkMaxBuyTxAmount() external view returns (uint256) {
return _maxBuyTxAmount;
}

function checkMaxSellTxAmount() external view returns (uint256) {
return _maxSellTxAmount;
}

function isNotInSwap() external view returns (bool) {
return !inSwap;
}

// Only Owner allowed
function setBuyFees(uint256 _liquidityFee, uint256 _buybackFee, uint256 _marketingFee, uint256 _devFee) external onlyOwner {
BuyliquidityFee = _liquidityFee;
BuybuybackFee = _buybackFee;
BuymarketingFee = _marketingFee;
BuycharityFee = _devFee;
BuytotalFee = _liquidityFee (_buybackFee) (_marketingFee) (_devFee);
}

function setSellFees(uint256 _liquidityFee, uint256 _buybackFee, uint256 _marketingFee, uint256 _devFee) external onlyOwner {
SellliquidityFee = _liquidityFee;
SellbuybackFee = _buybackFee;
SellmarketingFee = _marketingFee;
SellcharityFee = _devFee;
SelltotalFee = _liquidityFee (_buybackFee) (_marketingFee) (_devFee);
}

function setFeeReceivers(address _autoLiquidityReceiver, address _marketingFeeReceiver, address _buybackFeeReceiver, address _devFeeReceiver) external onlyOwner {
autoLiquidityReceiver = _autoLiquidityReceiver;
marketingFeeReceiver = _marketingFeeReceiver;
buybackFeeReceiver = _buybackFeeReceiver;
devFeeReceiver = _devFeeReceiver;
}

function setSwapBackSettings(bool _enabled, uint256 _percentage_min_base10000, uint256 _percentage_max_base10000) external onlyOwner {
swapEnabled = _enabled;
swapThreshold = _totalSupply / (10000) * (_percentage_min_base10000);
maxSwapSize = _totalSupply / (10000) * (_percentage_max_base10000);
}

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

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

function setMaxWalletPercent_base1000(uint256 maxWallPercent_base1000) external onlyOwner {
_maxWalletToken = _totalSupply / (1000) * (maxWallPercent_base1000);
}

function setMaxBuyTxPercent_base1000(uint256 maxBuyTXPercentage_base1000) external onlyOwner {
_maxBuyTxAmount = _totalSupply / (1000) * (maxBuyTXPercentage_base1000);
}

function setMaxSellTxPercent_base1000(uint256 maxSellTXPercentage_base1000) external onlyOwner {
_maxSellTxAmount = _totalSupply / (1000) * (maxSellTXPercentage_base1000);
}

// Stuck Balances Functions
function rescueToken(address tokenAddress, uint256 tokens) public onlyOwner returns (bool success) {
return IBEP20(tokenAddress).transfer(msg.sender, tokens);
}

function clearStuckBalance(uint256 amountPercentage) external onlyOwner {
uint256 amountBNB = address(this).balance;
payable(msg.sender).transfer(amountBNB * amountPercentage / 100);
}

event AutoLiquify(uint256 amountBNB, uint256 amountTokens);

}