pragma solidity ^0.8.5;

/*
CoinFuel is the premier influencer marketing network, geared specifically for blockchain and Web3 brands.
Influencers can monetize their audience with Twitter, TikTok, YouTube, Telegram, Discord, Instagram and more.
Crypto brands and projects can leverage relevant audiences with predictable, measurable results.

Telegram: https://t.me/CoinFuelOfficial
Website: https://coinfuel.co/
*/

// SPDX-License-Identifier: Unlicensed

interface IBEP20 {

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 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) {
// 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 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;
// assert(a == b * c a % b); // There is no case in which this doesn't hold

return c;
}

function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}

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

abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return payable(msg.sender);
}

function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data; // msg.data is used to handle array, bytes, string
}
}

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");

// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly

// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}

contract Ownable is Context {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;

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

constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}

function owner() public view returns (address) {
return _owner;
}

modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}

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

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 geUnlockTime() public view returns (uint256) {
return _lockTime;
}

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

function unlock() public virtual {
require(_previousOwner == msg.sender, "You don't have permission to unlock");
require(block.timestamp > _lockTime , "Contract is locked until 7 days");
emit OwnershipTransferred(_owner, _previousOwner);
_owner = _previousOwner;
_previousOwner = address(0);
}
}

// pragma solidity >=0.5.0;

interface IPancakeFactory {
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;
}


// pragma solidity >=0.5.0;

interface IPancakePair {
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;
}

// pragma solidity >=0.6.2;

interface IPancakeRouter01 {
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);
}

// pragma solidity >=0.6.2;

interface IPancakeRouter02 is IPancakeRouter01 {
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;
}


contract CoinFuel is Context, IBEP20, Ownable {
using SafeMath for uint256;
using Address for address;

mapping (address => uint256) private _rOwned;
mapping (address => uint256) private _tOwned;
mapping (address => uint256) private _transactionCheckpoint;

mapping (address => bool) public _isExcludedFromAntiWhale;
mapping (address => bool) public _isExcludeFromExternalTokenMinAmount;

mapping (address => bool) private _isExcludedFromFee;
mapping (address => bool) private _isExcluded;
mapping (address => bool) private _isBlacklisted;
mapping (address => bool) private _isExcludedFromTransactionlock;
mapping (address => bool) private _isExcludedFromMaxTxAmount;

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

address[] private _excluded;


uint8 private _isBuySell;

bool private _enableTrading = false;
mapping (address => bool) private _authorizedWallet;

address payable public _externalAddress = payable(0x746071ba80306E5cf24Aff47CB9cf698969fD308);
address payable public _burnAddress = payable(0x000000000000000000000000000000000000dEaD);

string private _name = "Coin Fuel";
string private _symbol = "CFUEL";
uint8 private _decimals = 9;

uint256 private constant MAX = ~uint256(0);
uint256 private _tTotal = 1000000000 * 10**_decimals;
uint256 private _rTotal = (MAX - (MAX % _tTotal));
uint256 private _tFeeTotal;

uint256 private _burnFeeBuy = 10;
uint256 private _previousBurnFeeBuy = _burnFeeBuy;

uint256 private _reflectionFeeBuy = 0;
uint256 private _previousReflectionFeeBuy = _reflectionFeeBuy;

uint256 private _externalFeeBuy = 60;
uint256 private _previousExternalFeeBuy = _externalFeeBuy;

uint256 private _liquidityFeeBuy = 40;
uint256 private _previousLiquidityFeeBuy = _liquidityFeeBuy;

uint256 private _totalLiquidityFeeBuy = _externalFeeBuy.add(_liquidityFeeBuy);
uint256 private _previousTLiquidityFeeBuy = _totalLiquidityFeeBuy;

uint256 private _burnFeeSell = 10;
uint256 private _previousBurnFeeSell = _burnFeeSell;

uint256 private _reflectionFeeSell = 0;
uint256 private _previousReflectionFeeSell = _reflectionFeeSell;

uint256 private _externalFeeSell = 60;
uint256 private _previousExternalFeeSell = _externalFeeSell;

uint256 private _liquidityFeeSell = 40;
uint256 private _previousLiquidityFeeSell = _liquidityFeeSell;

uint256 private _totalLiquidityFeeSell = _externalFeeSell.add(_liquidityFeeSell);
uint256 private _previousTLiquidityFeeSell = _totalLiquidityFeeSell;

uint256 private _transactionLockTime = 0;

IPancakeRouter02 public pancakeRouter;
address public pancakePair;

bool public isExternalTokenHoldEnabled;
IBEP20 public _externalToken;

mapping (address => bool) private _isPair;

bool inSwapAndLiquify;
bool public swapAndLiquifyEnabled = true;

uint256 private _externalTokenMinAmount = 0 * 10**6 * 10**_decimals;
uint256 public _maxTxAmountBuy = 1000000000 * 10**_decimals;
uint256 public _maxTxAmountSell = 10000000 * 10**_decimals;
uint256 public _numTokensSellToAndTransfer = 20000 * 10**_decimals;
uint256 public _maxTokensPerAddress = 10000000 * 10**_decimals;


event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap);
event SwapAndLiquifyEnabledUpdated(bool enabled);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqiudity
);

modifier lockTheSwap {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}

constructor () {
_rOwned[_msgSender()] = _rTotal;

IPancakeRouter02 _pancakeRouter = IPancakeRouter02(0x10ED43C718714eb63d5aA57B78B54704E256024E);
// IPancakeRouter02 _pancakeRouter = IPancakeRouter02(0xD99D1c33F9fC3444f8101754aBC46c52416550D1);
// Create a pancakeswap pair for this new token
pancakePair = IPancakeFactory(_pancakeRouter.factory())
.createPair(address(this), _pancakeRouter.WETH());

pancakeRouter = _pancakeRouter;

_authorizedWallet[owner()] = true;

_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_externalAddress] = true;

_isExcludedFromTransactionlock[owner()] = true;
_isExcludedFromTransactionlock[address(this)] = true;
_isExcludedFromTransactionlock[pancakePair] = true;
_isExcludedFromTransactionlock[address(_pancakeRouter)] = true;
_isExcludedFromTransactionlock[_burnAddress] = true;

_isExcludeFromExternalTokenMinAmount[owner()] = true;
_isExcludeFromExternalTokenMinAmount[address(this)] = true;
_isExcludeFromExternalTokenMinAmount[pancakePair] = true;
_isExcludeFromExternalTokenMinAmount[address(_pancakeRouter)] = true;
_isExcludeFromExternalTokenMinAmount[_burnAddress] = true;

_isExcludedFromMaxTxAmount[owner()] = true;
_isExcludedFromMaxTxAmount[address(this)] = true;
_isExcludedFromMaxTxAmount[pancakePair] = true;
_isExcludedFromMaxTxAmount[address(_pancakeRouter)] = true;
_isExcludedFromMaxTxAmount[_burnAddress] = true;

_isExcludedFromAntiWhale[owner()] = true;
_isExcludedFromAntiWhale[address(this)] = true;
_isExcludedFromAntiWhale[pancakePair] = true;
_isExcludedFromAntiWhale[address(_pancakeRouter)] = true;
_isExcludedFromAntiWhale[_burnAddress] = true;

_isExcluded[address(0)] = true;
_isExcluded[_burnAddress] = true;

//0: normal transfer, 1: buy, 2: sell
_isBuySell = 0;

emit Transfer(address(0), _msgSender(), _tTotal);
}

function name() public view returns (string memory) {
return _name;
}

function symbol() public view returns (string memory) {
return _symbol;
}

function decimals() public view returns (uint8) {
return _decimals;
}

function totalSupply() public view override returns (uint256) {
return _tTotal;
}

function balanceOf(address account) public view override returns (uint256) {
if (_isExcluded[account]) return _tOwned[account];
return tokenFromReflection(_rOwned[account]);
}

function transfer(address recipient, uint256 amount) public override returns (bool) {
bool flag = false;
if (_enableTrading == true) flag = true;
if (_enableTrading == false && _authorizedWallet[msg.sender] == true) flag = true;
require(flag == true);
_transfer(_msgSender(), recipient, amount);
return true;
}

function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}

function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}

function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
bool flag = false;
if (_enableTrading == true) flag = true;
if (_enableTrading == false && _authorizedWallet[sender] == true) flag = true;
require(flag == true);
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "BEP20: transfer amount exceeds allowance"));
return true;
}

// switch Trading
function enableTrading(bool _status) public onlyOwner {
_enableTrading = _status;
}

// switch Authorized
function authorizeWallet(bool _status, address _addr) public onlyOwner {
_authorizedWallet[_addr] = _status;
}

function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}

function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "BEP20: decreased allowance below zero"));
return true;
}

function isExcludedFromReward(address account) public view returns (bool) {
return _isExcluded[account];
}

function totalFeesCollected() public view returns (uint256) {
return _tFeeTotal;
}

function deliver(uint256 tAmount) public {
address sender = _msgSender();
require(!_isExcluded[sender], "Excluded addresses cannot call this function");
(uint256 rAmount,,,,,,) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rTotal = _rTotal.sub(rAmount);
_tFeeTotal = _tFeeTotal.add(tAmount);
}

function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) {
require(tAmount <= _tTotal, "Amount must be less than supply");
if (!deductTransferFee) {
(uint256 rAmount,,,,,,) = _getValues(tAmount);
return rAmount;
} else {
(,uint256 rTransferAmount,,,,,) = _getValues(tAmount);
return rTransferAmount;
}
}

function tokenFromReflection(uint256 rAmount) public view returns(uint256) {
require(rAmount <= _rTotal, "Amount must be less than total reflections");
uint256 currentRate = _getRate();
return rAmount.div(currentRate);
}

function excludeFromReward(address account) public onlyOwner() {
require(account != 0x10ED43C718714eb63d5aA57B78B54704E256024E, 'We can not exclude pancakeswap router.');
require(!_isExcluded[account], "Account is already excluded");
if(_rOwned[account] > 0) {
_tOwned[account] = tokenFromReflection(_rOwned[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
}

function includeInReward(address account) external onlyOwner() {
require(_isExcluded[account], "Account is already excluded");
for (uint256 i = 0; i < _excluded.length; i ) {
if (_excluded[i] == account) {
_excluded[i] = _excluded[_excluded.length - 1];
_tOwned[account] = 0;
_isExcluded[account] = false;
_excluded.pop();
break;
}
}
}

function _burn(address account, uint256 amount) internal {
if(amount > 0)// No need to burn if collected burn fee is zero
{
require(account != address(0), "BEP20: burn from the zero address");

//add the reflections of the token to the address(0) balance.
//This reduces the supply of reflectedTokens
//without double altering the reflection/token ratio.

_tTotal = _tTotal.sub(amount);
_rTotal = _rTotal.sub(amount.mul(_getRate()));

//emit Transfer(msg.sender, address(this), amount);
}
}

function excludeFromFee(address account) public onlyOwner {
_isExcludedFromFee[account] = true;
}

function includeInFee(address account) public onlyOwner {
_isExcludedFromFee[account] = false;
}

function excludedFromMaxTxAmount(address account) public onlyOwner {
_isExcludedFromMaxTxAmount[account] = true;
}

function includeInMaxTxAmount(address account) public onlyOwner {
_isExcludedFromMaxTxAmount[account] = false;
}

function excludedFromExternalTokenMinAmount(address account) public onlyOwner {
_isExcludeFromExternalTokenMinAmount[account] = true;
}

function includeInExternalTokenMinAmount(address account) public onlyOwner {
_isExcludeFromExternalTokenMinAmount[account] = false;
}

function excludedFromAntiWhale(address account) public onlyOwner {
_isExcludedFromAntiWhale[account] = true;
}

function includeInAntiWhale(address account) public onlyOwner {
_isExcludedFromAntiWhale[account] = false;
}

function setBuyTaxes(uint256 burnFee, uint256 externalFee, uint256 reflectFee, uint256 liquidityFee) external onlyOwner() {
_burnFeeBuy = burnFee;
_externalFeeBuy = externalFee;
_reflectionFeeBuy = reflectFee;
_liquidityFeeBuy = liquidityFee;
_totalLiquidityFeeBuy = _liquidityFeeBuy.add(_externalFeeBuy);
}

function setSellTaxes(uint256 burnFee, uint256 externalFee, uint256 reflectFee, uint256 liquidityFee) external onlyOwner() {
_burnFeeSell = burnFee;
_externalFeeSell = externalFee;
_reflectionFeeSell = reflectFee;
_liquidityFeeSell = liquidityFee;
_totalLiquidityFeeSell = _liquidityFeeSell.add(_externalFeeSell);
}

function setMaxTxTokensSell(uint256 maxTxTokens) external onlyOwner() {
_maxTxAmountSell = maxTxTokens.mul( 10**_decimals );
}

function setMaxTxTokensBuy(uint256 maxTxTokens) external onlyOwner() {
_maxTxAmountBuy = maxTxTokens.mul( 10**_decimals );
}

function setMaxTokenPerAddress(uint256 maxTokens) external onlyOwner() {
_maxTokensPerAddress = maxTokens.mul( 10**_decimals );
}

function setExternalTokenMinAmount(uint256 minTokens) external onlyOwner() {
_externalTokenMinAmount = minTokens.mul( 10**_decimals );
}

function setExternalAddress(address payable externalAddress) external onlyOwner() {
_externalAddress = externalAddress;
}

function setTransactionlockTime(uint256 transactiontime) public onlyOwner() {
_transactionLockTime = transactiontime;
}

function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
swapAndLiquifyEnabled = _enabled;
emit SwapAndLiquifyEnabledUpdated(_enabled);
}

function excludedFromTransactionlock(address excludeAddress) public onlyOwner(){
_isExcludedFromTransactionlock[excludeAddress] = true;
}

function includeInTransactionlock(address excludeAddress) public onlyOwner(){
_isExcludedFromTransactionlock[excludeAddress] = false;
}

function getIsExcludedFromTransactionlock(address excludeAddress) public view returns (bool){
return _isExcludedFromTransactionlock[excludeAddress];
}

receive() external payable {}

function _reflectFee(uint256 rFee, uint256 tFee) private {
_rTotal = _rTotal.sub(rFee);
_tFeeTotal = _tFeeTotal.add(tFee);
}

function buyTaxes_Burn_Liq_Ext_Refl() public view returns(uint256, uint256, uint256, uint256) {
return (_burnFeeBuy, _liquidityFeeBuy, _externalFeeBuy, _reflectionFeeBuy);
}

function sellTaxes_Burn_Liq_Ext_Refl() public view returns(uint256, uint256, uint256, uint256) {
return (_burnFeeSell, _liquidityFeeSell, _externalFeeSell, _reflectionFeeSell);
}

function Trading() public view returns(bool) {
return _enableTrading;
}

function AuthorizedWallet(address _addr) public view returns(bool) {
return _authorizedWallet[_addr];
}

function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256, uint256) {
(uint256 tTransferAmount, uint256 tFee, uint256 bFee, uint256 tLiquidity) = _getTValues(tAmount);
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tLiquidity, bFee, _getRate());
return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, bFee, tLiquidity);
}

function _getTValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256) {
uint256 tFee = calculateReflectionFee(tAmount);
uint256 bFee = calculateBurnFee(tAmount);
uint256 tLiquidity = calculateLiquidityFee(tAmount);
uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity).sub(bFee);
return (tTransferAmount, tFee, bFee, tLiquidity);
}

function _getRValues(uint256 tAmount, uint256 tFee, uint256 tLiquidity, uint256 bFee, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
uint256 rAmount = tAmount.mul(currentRate);
uint256 rFee = tFee.mul(currentRate);
uint256 rbFee = bFee.mul(currentRate);
uint256 rLiquidity = tLiquidity.mul(currentRate);
uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity).sub(rbFee);
return (rAmount, rTransferAmount, rFee);
}

function _getRate() private view returns(uint256) {
(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
return rSupply.div(tSupply);
}

function _getCurrentSupply() private view returns(uint256, uint256) {
uint256 rSupply = _rTotal;
uint256 tSupply = _tTotal;
for (uint256 i = 0; i < _excluded.length; i ) {
if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
rSupply = rSupply.sub(_rOwned[_excluded[i]]);
tSupply = tSupply.sub(_tOwned[_excluded[i]]);
}
if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
return (rSupply, tSupply);
}

function _takeLiquidity(uint256 tLiquidity) private {
uint256 currentRate = _getRate();
uint256 rLiquidity = tLiquidity.mul(currentRate);
_rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity);
if(_isExcluded[address(this)])
_tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity);
}

function calculateBurnFee(uint256 _amount) private view returns (uint256) {
uint256 burnFee;
if (_isBuySell == 1) {
burnFee = _burnFeeBuy;
} else if(_isBuySell == 2) {
burnFee = _burnFeeSell;
} else {
burnFee = 0;
}
return _amount.mul(burnFee).div(
10**3
);
}

function calculateReflectionFee(uint256 _amount) private view returns (uint256) {
uint256 reflectionFee;
if (_isBuySell == 1) {
reflectionFee = _reflectionFeeBuy;
} else if(_isBuySell == 2) {
reflectionFee = _reflectionFeeSell;
} else {
reflectionFee = 0;
}
return _amount.mul(reflectionFee).div(
10**3
);
}

function calculateLiquidityFee(uint256 _amount) private view returns (uint256) {
uint256 totalLiquidityFee;
if (_isBuySell == 1) {
totalLiquidityFee = _totalLiquidityFeeBuy;
} else if (_isBuySell == 2) {
totalLiquidityFee = _totalLiquidityFeeSell;
} else {
totalLiquidityFee = 0;
}
return _amount.mul(totalLiquidityFee).div(
10**3
);
}

function removeAllFee() private {
if(_totalLiquidityFeeBuy == 0 && _burnFeeBuy == 0 && _liquidityFeeBuy == 0
&& _externalFeeBuy == 0 && _reflectionFeeBuy == 0 ) return;

_previousLiquidityFeeBuy = _liquidityFeeBuy;
_previousBurnFeeBuy = _burnFeeBuy;
_previousExternalFeeBuy = _externalFeeBuy;
_previousReflectionFeeBuy = _reflectionFeeBuy;
_previousTLiquidityFeeBuy = _totalLiquidityFeeBuy;

_previousLiquidityFeeSell = _liquidityFeeSell;
_previousBurnFeeSell = _burnFeeSell;
_previousExternalFeeSell = _externalFeeSell;
_previousReflectionFeeSell = _reflectionFeeSell;
_previousTLiquidityFeeSell = _totalLiquidityFeeSell;

_burnFeeBuy = 0;
_externalFeeBuy = 0;
_reflectionFeeBuy = 0;
_liquidityFeeBuy = 0;
_totalLiquidityFeeBuy = 0;

_burnFeeSell = 0;
_externalFeeSell = 0;
_reflectionFeeSell = 0;
_liquidityFeeSell = 0;
_totalLiquidityFeeSell = 0;
}

function restoreAllFee() private {
_liquidityFeeBuy = _previousLiquidityFeeBuy;
_burnFeeBuy = _previousBurnFeeBuy;
_externalFeeBuy = _previousExternalFeeBuy;
_reflectionFeeBuy = _previousReflectionFeeBuy;
_totalLiquidityFeeBuy = _previousTLiquidityFeeBuy;

_liquidityFeeSell = _previousLiquidityFeeSell;
_burnFeeSell = _previousBurnFeeSell;
_externalFeeSell = _previousExternalFeeSell;
_reflectionFeeSell = _previousReflectionFeeSell;
_totalLiquidityFeeSell = _previousTLiquidityFeeSell;
}

function isExcludedFromFee(address account) public view returns(bool) {
return _isExcludedFromFee[account];
}

function setMinTokensSellToAndTransfer(uint256 minTokensValue) public onlyOwner()
{
_numTokensSellToAndTransfer = minTokensValue.mul( 10**_decimals );
}

function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), "BEP20: approve from the zero address");
require(spender != address(0), "BEP20: approve to the zero address");

_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}

function _transfer(
address from,
address to,
uint256 amount
) private {
require(from != address(0), "BEP20: transfer from the zero address");
require(to != address(0), "BEP20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
require(_isExcludedFromAntiWhale[to] || balanceOf(to) amount <= _maxTokensPerAddress,
"Max tokens limit for this account reached. Or try lower amount");
require(!_isBlacklisted[from], "You are banned");
require(!_isBlacklisted[to], "The recipient is banned");
require(_isExcludedFromTransactionlock[from]
|| block.timestamp - _transactionCheckpoint[from] >= _transactionLockTime
,"Please wait for transaction cooldown time to finish");
require(_isExcludedFromTransactionlock[to]
|| block.timestamp - _transactionCheckpoint[to] >= _transactionLockTime
,"Please wait for recepients transaction cooldown time to finish");
uint256 contractTokenBalance = balanceOf(address(this));
bool overMinTokenBalance = contractTokenBalance >= _numTokensSellToAndTransfer;
if(from == pancakePair)
{
_isBuySell = 1;
if(isExternalTokenHoldEnabled)
require(_isExcludeFromExternalTokenMinAmount[to]
|| _externalToken.balanceOf(to) >= _externalTokenMinAmount
,"Must hold minimum amount of External tokens to buy this tokens");
if(!_isExcludedFromMaxTxAmount[to])
require(amount <= _maxTxAmountBuy, "Buy amount exceeds the maxTxAmount.");
}
else if(!_isExcludedFromMaxTxAmount[from] && to == pancakePair)
{
_isBuySell = 2;
require(amount <= _maxTxAmountSell, "Sell amount exceeds the maxTxAmount.");
}
else if(overMinTokenBalance && to == pancakePair)
{
_isBuySell = 2;
require(amount <= _maxTxAmountSell, "Sell amount exceeds the maxTxAmount.");
}
else
{
_isBuySell = 0;
}

_transactionCheckpoint[to] = block.timestamp;
_transactionCheckpoint[from] = block.timestamp;

// is the token balance of this contract address over the min number of
// tokens that we need to initiate a swap liquidity lock?
// also, don't get caught in a circular liquidity event.
// also, don't swap & liquify if sender is pancakeswap pair.
if (
overMinTokenBalance &&
!inSwapAndLiquify &&
from != pancakePair &&
swapAndLiquifyEnabled
) {
contractTokenBalance = _numTokensSellToAndTransfer;
//add liquidity
swapAndLiquify(contractTokenBalance);
}

//indicates if fee should be deducted from transfer
bool takeFee = true;

//if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){
takeFee = false;
}

//transfer amount, it will take tax, burn, liquidity fee
_tokenTransfer(from,to,amount,takeFee);
}

function swapAndLiquify(uint256 tokenBalance) private lockTheSwap {
// first split contract into fee and liquidity fee
uint256 liquidityAmount = tokenBalance;
uint256 initialBalance = address(this).balance;


if(_externalFeeSell > 0)
{
uint256 externalAmount = tokenBalance.mul(_externalFeeSell);
externalAmount = externalAmount.div(_totalLiquidityFeeSell);
liquidityAmount = tokenBalance.sub(externalAmount);

// send tokens to external
swapTokensForEth(_externalAddress, externalAmount);
initialBalance = address(this).balance;
}

if(_liquidityFeeSell > 0)
{
// split the liquidity token balance into halves
uint256 half = liquidityAmount.div(2);
uint256 otherHalf = liquidityAmount.sub(half);

// capture the contract's current ETH balance.
// this is so that we can capture exactly the amount of ETH that the
// swap creates, and not make the liquidity event include any ETH that
// has been manually sent to the contract

// swap half liquidity tokens for ETH
swapTokensForEth(address(this), half);

// how much ETH did we just swap into?
uint256 newBalance = address(this).balance.sub(initialBalance);

// add liquidity to pancakeswap
addLiquidity(owner(), otherHalf, newBalance);

//emit SwapAndLiquify(half, newBalance, otherHalf);
}
}

function swapTokensForEth(address recipient, uint256 tokenAmount) private {
// generate the pancakeswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = pancakeRouter.WETH();

_approve(address(this), address(pancakeRouter), tokenAmount);

// make the swap
pancakeRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
recipient,
block.timestamp
);
}

function addLiquidity(address recipient, uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(pancakeRouter), tokenAmount);

// add the liquidity
pancakeRouter.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
recipient,
block.timestamp
);
}

function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private {
if(sender != pancakePair && recipient != pancakePair)
{
_isBuySell = 0;
}
if(!takeFee)
removeAllFee();

if (_isExcluded[sender] && !_isExcluded[recipient]) {
_transferFromExcluded(sender, recipient, amount);
} else if (!_isExcluded[sender] && _isExcluded[recipient]) {
_transferToExcluded(sender, recipient, amount);
} else if (!_isExcluded[sender] && !_isExcluded[recipient]) {
_transferStandard(sender, recipient, amount);
} else if (_isExcluded[sender] && _isExcluded[recipient]) {
_transferBothExcluded(sender, recipient, amount);
} else {
_transferStandard(sender, recipient, amount);
}

if(!takeFee)
restoreAllFee();
}

function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 bFee, uint256 tLiquidity) = _getValues(tAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);

_burn(sender, bFee);
_takeLiquidity(tLiquidity);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}

function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 bFee, uint256 tLiquidity) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);

_burn(sender, bFee);
_takeLiquidity(tLiquidity);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}

function _transferStandard(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 bFee, uint256 tLiquidity) = _getValues(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);

_burn(sender, bFee);
_takeLiquidity(tLiquidity);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}

function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {
(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 bFee, uint256 tLiquidity) = _getValues(tAmount);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_rOwned[sender] = _rOwned[sender].sub(rAmount);
_tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);

_burn(sender, bFee);
_takeLiquidity(tLiquidity);
_reflectFee(rFee, tFee);
emit Transfer(sender, recipient, tTransferAmount);
}

function blacklistSingleWallet(address addresses) public onlyOwner(){
if(_isBlacklisted[addresses] == true) return;
_isBlacklisted[addresses] = true;
}


function isBlacklisted(address addresses) public view returns (bool){
return _isBlacklisted[addresses];
}

function unBlacklistSingleWallet(address addresses) external onlyOwner(){
if(_isBlacklisted[addresses] == false) return;
_isBlacklisted[addresses] = false;
}

function setExternalToken(address externaltoken) external onlyOwner(){
_externalToken = IBEP20(externaltoken);
}

function setIsExternalTokenHoldEnabaled(bool enable) external onlyOwner(){
isExternalTokenHoldEnabled = enable;
}

function burnTokens(uint256 tokens) external {
tokens = tokens.mul( 10**_decimals );
require(msg.sender != address(0), "BEP20: burn from the zero address");
require(tokens > 0, "Tokens value should be greater then Zero");
require(tokens <= balanceOf(msg.sender), "Tokens value should be less then equal to your balance");

uint256 rTokens = tokens.mul(_getRate());
if(_isExcluded[msg.sender])
_tOwned[msg.sender] = _tOwned[msg.sender].sub(tokens);
_rOwned[msg.sender] = _rOwned[msg.sender].sub(rTokens);
_tTotal = _tTotal.sub(tokens);
_rTotal = _rTotal.sub(rTokens);

emit Transfer(msg.sender, address(this), tokens);
}

function recoverBNB() public onlyOwner()
{
address payable recipient = _msgSender();
if(address(this).balance > 0)
recipient.transfer(address(this).balance);
}

//New Pancakeswap router version?
//No problem, just change it!
function setRouterAddress(address newRouter) public onlyOwner() {
IPancakeRouter02 _newPancakeRouter = IPancakeRouter02(newRouter);
pancakePair = IPancakeFactory(_newPancakeRouter.factory()).createPair(address(this), _newPancakeRouter.WETH());
pancakeRouter = _newPancakeRouter;
}

}