// SPDX-License-Identifier: MIT
// @dev Telegram: defi_guru
pragma solidity ^0.6.0;

/*
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with GSN meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return 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;
}
}

/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @dev Returns the amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);

/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);

/**
* @dev Moves `amount` tokens from the caller's account to `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, uint256 amount) external returns (bool);

/**
* @dev Returns the remaining number of tokens that `spender` will be
* allowed to spend on behalf of `owner` through {transferFrom}. This is
* zero by default.
*
* This value changes when {approve} or {transferFrom} are called.
*/
function allowance(address owner, address spender) external view returns (uint256);

/**
* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* IMPORTANT: Beware that changing an allowance with this method brings the risk
* that someone may use both the old and the new allowance by unfortunate
* transaction ordering. One possible solution to mitigate this race
* condition is to first reduce the spender's allowance to 0 and set the
* desired value afterwards:
* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
*
* Emits an {Approval} event.
*/
function approve(address spender, uint256 amount) external returns (bool);

/**
* @dev Moves `amount` tokens from `sender` to `recipient` using the
* allowance mechanism. `amount` is then deducted from the caller's
* allowance.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);

/**
* @dev Emitted when `value` tokens are moved from one account (`from`) to
* another (`to`).
*
* Note that `value` may be zero.
*/
event Transfer(address indexed from, address indexed to, uint256 value);

/**
* @dev Emitted when the allowance of a `spender` for an `owner` is set by
* a call to {approve}. `value` is the new allowance.
*/
event Approval(address indexed owner, address indexed spender, uint256 value);
}

/**
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's ` ` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a b;
require(c >= a, 'SafeMath: addition overflow');

return c;
}

/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, 'SafeMath: subtraction overflow');
}

/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;

return c;
}

/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
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;
}

/**
* @dev Returns the integer division of two unsigned integers. Reverts on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, 'SafeMath: division by zero');
}

/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be 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;
}

/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, 'SafeMath: modulo by zero');
}

/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* Reverts with custom message when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}

/**
* @dev Collection of functions related to the address type
*/
library Address {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
* ====
*/
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);
}

/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
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');
}

/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain`call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, 'Address: low-level call failed');
}

/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}

/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
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');
}

/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
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);
}
}
}
}

/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
contract Ownable is Context {
address private _owner;

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

/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() internal {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}

/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}

/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), 'Ownable: caller is not the owner');
_;
}

/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}

/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current 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;
}
}

interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IUniswapV2Pair {
function sync() external;
}

interface IUniswapV2Router01 {
function factory() external pure returns (address);

function WETH() external pure returns (address);

function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
)
external
returns (
uint256 amountA,
uint256 amountB,
uint256 liquidity
);

function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
}

interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountETH);

function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;

function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;

function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
}

pragma solidity ^0.6.0;

abstract contract ReentrancyGuard {
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;

uint256 private _status;

constructor() public {
_status = _NOT_ENTERED;
}

modifier nonReentrant() {
require(_status != _ENTERED, 'ReentrancyGuard: reentrant call');
_status = _ENTERED;
_;
_status = _NOT_ENTERED;
}

modifier isHuman() {
require(tx.origin == msg.sender, 'sorry humans only');
_;
}
}

pragma solidity ^0.6.0;

library TransferHelper {
function safeApprove(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('approve(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeApprove: approve failed'
);
}

function safeTransfer(
address token,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transfer(address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::safeTransfer: transfer failed'
);
}

function safeTransferFrom(
address token,
address from,
address to,
uint256 value
) internal {
// bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
(bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
require(
success && (data.length == 0 || abi.decode(data, (bool))),
'TransferHelper::transferFrom: transferFrom failed'
);
}

function safeTransferETH(address to, uint256 value) internal {
(bool success, ) = to.call{value: value}(new bytes(0));
require(success, 'TransferHelper::safeTransferETH: ETH transfer failed');
}
}

interface IFeeReceiver {
function onFeeReceived(uint256 amount) external payable;
}

contract FeeReceiver is IFeeReceiver, Ownable {
address public vault;
constructor(address _owner, address _vault) public {
vault = _vault;
transferOwnership(_owner);
}

receive() external payable {}

function onFeeReceived(uint256 amount) override external payable {
if(vault != address(0))
payable(vault).transfer(amount);
}

function setVault(address _vault) external onlyOwner {
vault = _vault;
}

function withdrawAccidentallySentTokens(IERC20 token, address recipient, uint256 amount) external onlyOwner {
token.transfer(recipient, amount);
}

function withdrawAccidentallySentEth(address payable recipient, uint256 amount) external onlyOwner {
recipient.transfer(amount);
}
}

interface IPinkAntiBot {
function setTokenOwner(address owner) external;

function onPreTransferCheck(
address from,
address to,
uint256 amount
) external;
}

contract CryptoRunner is Context, IERC20, Ownable, ReentrancyGuard {
using SafeMath for uint256;
using Address for address;
using TransferHelper for address;

address DEAD = 0x000000000000000000000000000000000000dEaD;

string private _name = 'CryptoRunner';
string private _symbol = 'RUN';
uint8 private _decimals = 9;

mapping(address => uint256) internal _reflectionBalance;
mapping(address => uint256) internal _tokenBalance;
mapping(address => mapping(address => uint256)) internal _allowances;

uint256 private constant MAX = ~uint256(0);
uint256 private constant MAX_TX_AMOUNT_LIMIT = 10_000e9;
uint256 private constant MAX_FEE = 1500;
uint256 private constant MAX_SWAP_PERCENT_LIMIT = 1000;
uint256 internal _tokenTotal = 1_000_000_000e9;
uint256 internal _reflectionTotal = (MAX - (MAX % _tokenTotal));

mapping(address => bool) public isTaxless;
mapping(address => bool) internal _isExcluded;
address[] internal _excluded;

uint256 public _feeDecimal = 2;
// index 0 = buy fee, index 1 = sell fee, index 2 = p2p fee
uint256[] public _taxFee;
uint256[] public _liqFee;
uint256[] public _vaultFee;
uint256[] public _marketingFee;

uint256 internal _feeTotal;
uint256 internal _liqFeeCollected;
uint256 internal _vaultFeeCollected;
uint256 internal _marketingFeeCollected;

bool public isFeeActive = false; // should be true
bool private inSwap;
bool public swapEnabled = true;

uint256 public maxTxAmount = _tokenTotal.mul(5).div(1000); // 0.5%
uint256 public minTokensBeforeSwap = 100_000e9;
uint256 public maxSwapPercent = 100; // 1%

address public marketingWallet;
IFeeReceiver public feeReceiver;

IPinkAntiBot public pinkAntiBot;
bool public antiBotEnabled;

IUniswapV2Router02 public router;
address public pair;

event SwapUpdated(bool enabled);
event Swap(uint256 tokensSwapped, uint256 bnbReceived, uint256 tokensIntoLiqudity);
event AutoLiquify(uint256 bnbAmount, uint256 tokenAmount);

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

constructor(address _router ,address _owner,address _marketingWallet, address _vault, IPinkAntiBot _antiBot) public {
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(_router);
pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
router = _uniswapV2Router;
marketingWallet = _marketingWallet;
feeReceiver = new FeeReceiver(_owner, _vault);
pinkAntiBot = _antiBot;
pinkAntiBot.setTokenOwner(_owner);

isTaxless[_owner] = true;
isTaxless[address(_vault)] = true;
isTaxless[address(feeReceiver)] = true;
isTaxless[_marketingWallet] = true;
isTaxless[address(this)] = true;

excludeAccount(address(pair));
excludeAccount(address(this));
excludeAccount(address(_marketingWallet));
excludeAccount(address(_vault));
excludeAccount(address(feeReceiver));
excludeAccount(address(address(0)));
excludeAccount(address(address(0x000000000000000000000000000000000000dEaD)));

_reflectionBalance[_owner] = _reflectionTotal;
emit Transfer(address(0),_owner, _tokenTotal);

_taxFee.push(0);
_taxFee.push(0);
_taxFee.push(0);

_liqFee.push(100);
_liqFee.push(100);
_liqFee.push(0);

_vaultFee.push(400);
_vaultFee.push(600);
_vaultFee.push(0);

_marketingFee.push(200);
_marketingFee.push(300);
_marketingFee.push(0);

_approve(address(this), address(router), uint256(-1));

transferOwnership(_owner);
}

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 _tokenTotal;
}

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

function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
_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 virtual override returns (bool) {
_transfer(sender, recipient, amount);

_approve(
sender,
_msgSender(),
_allowances[sender][_msgSender()].sub(amount, 'ERC20: transfer amount exceeds allowance')
);
return true;
}

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, 'ERC20: decreased allowance below zero')
);
return true;
}

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

function reflectionFromToken(uint256 tokenAmount) private view returns (uint256) {
require(tokenAmount <= _tokenTotal, 'Amount must be less than supply');
return tokenAmount.mul(_getReflectionRate());
}

function tokenFromReflection(uint256 reflectionAmount) private view returns (uint256) {
require(reflectionAmount <= _reflectionTotal, 'Amount must be less than total reflections');
uint256 currentRate = _getReflectionRate();
return reflectionAmount.div(currentRate);
}

function excludeAccount(address account) private onlyOwner {
require(account != address(router), 'ERC20: We can not exclude Uniswap router.');
require(!_isExcluded[account], 'ERC20: Account is already excluded');
if (_reflectionBalance[account] > 0) {
_tokenBalance[account] = tokenFromReflection(_reflectionBalance[account]);
}
_isExcluded[account] = true;
_excluded.push(account);
}

function includeAccount(address account) external onlyOwner {
require(_isExcluded[account], 'ERC20: Account is already included');
for (uint256 i = 0; i < _excluded.length; i ) {
if (_excluded[i] == account) {
_excluded[i] = _excluded[_excluded.length - 1];
_tokenBalance[account] = 0;
_isExcluded[account] = false;
_excluded.pop();
break;
}
}
}

function _approve(
address owner,
address spender,
uint256 amount
) private {
require(owner != address(0), 'ERC20: approve from the zero address');
require(spender != address(0), 'ERC20: approve to the zero address');

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

function _transfer(
address sender,
address recipient,
uint256 amount
) private {
require(sender != address(0), 'ERC20: transfer from the zero address');
require(recipient != address(0), 'ERC20: transfer to the zero address');
require(amount > 0, 'Transfer amount must be greater than zero');

if (antiBotEnabled) {
pinkAntiBot.onPreTransferCheck(sender, recipient, amount);
}

require(isTaxless[sender] || isTaxless[recipient] || amount <= maxTxAmount, 'Max Transfer Limit Exceeds!');

if (swapEnabled && !inSwap && sender != pair) {
swap();
}

uint256 transferAmount = amount;
uint256 rate = _getReflectionRate();

if (isFeeActive && !isTaxless[sender] && !isTaxless[recipient] && !inSwap) {
transferAmount = collectFee(sender, amount, rate, recipient == pair, sender != pair && recipient != pair);
}

//transfer reflection
_reflectionBalance[sender] = _reflectionBalance[sender].sub(amount.mul(rate));
_reflectionBalance[recipient] = _reflectionBalance[recipient].add(transferAmount.mul(rate));

//if any account belongs to the excludedAccount transfer token
if (_isExcluded[sender]) {
_tokenBalance[sender] = _tokenBalance[sender].sub(amount);
}
if (_isExcluded[recipient]) {
_tokenBalance[recipient] = _tokenBalance[recipient].add(transferAmount);
}

emit Transfer(sender, recipient, transferAmount);
}

function calculateFee(uint256 feeIndex, uint256 amount)
internal returns(uint256 taxFee, uint256 marketingFee,uint256 totalFee) {
taxFee = amount.mul(_taxFee[feeIndex]).div(10**(_feeDecimal 2));
marketingFee = amount.mul(_marketingFee[feeIndex]).div(10**(_feeDecimal 2));
uint256 liqFee = amount.mul(_liqFee[feeIndex]).div(10**(_feeDecimal 2));
uint256 vaultFee = amount.mul(_vaultFee[feeIndex]).div(10**(_feeDecimal 2));
totalFee = liqFee.add(vaultFee);

_liqFeeCollected = _liqFeeCollected.add(liqFee);
_vaultFeeCollected = _vaultFeeCollected.add(vaultFee);
}

function collectFee(
address account,
uint256 amount,
uint256 rate,
bool sell,
bool p2p
) private returns (uint256) {
uint256 transferAmount = amount;

(uint256 taxFee, uint256 marketingFee, uint256 otherFee) = calculateFee(p2p ? 2 : sell ? 1 : 0, amount);
if(otherFee != 0)
{
transferAmount = transferAmount.sub(otherFee);
_reflectionBalance[address(this)] = _reflectionBalance[address(this)].add(otherFee.mul(rate));
if (_isExcluded[address(this)]) {
_tokenBalance[address(this)] = _tokenBalance[address(this)].add(otherFee);
}
emit Transfer(account, address(this), otherFee);
}
if(marketingFee != 0) {
transferAmount = transferAmount.sub(marketingFee);
_reflectionBalance[marketingWallet] = _reflectionBalance[marketingWallet].add(marketingFee.mul(rate));
if (_isExcluded[marketingWallet]) {
_tokenBalance[marketingWallet] = _tokenBalance[marketingWallet].add(marketingFee);
}
emit Transfer(account, marketingWallet, marketingFee);
}
if(taxFee != 0) {
transferAmount = transferAmount.sub(taxFee);
_reflectionTotal = _reflectionTotal.sub(taxFee.mul(rate));
}
_feeTotal = _feeTotal.add(taxFee).add(otherFee).add(marketingFee);
return transferAmount;
}

function swap() private lockTheSwap {
uint256 maxSwapAmount = balanceOf(pair).mul(maxSwapPercent).div(10**(_feeDecimal 2));
uint256 liqFee = _liqFeeCollected;
uint256 vaultFee = _vaultFeeCollected;
// if we have more total tokens than maxSwapAmount,
// split the maxSwapAmount amoung both fees
if(_liqFeeCollected.add(_vaultFeeCollected) > maxSwapAmount) {
liqFee = maxSwapAmount.div(2) > _liqFeeCollected ? _liqFeeCollected : maxSwapAmount.div(2);
vaultFee = maxSwapAmount.sub(liqFee) > _vaultFeeCollected ? _vaultFeeCollected : maxSwapAmount.sub(liqFee);
}
uint256 totalFee = liqFee.add(vaultFee);

if(minTokensBeforeSwap > totalFee) return;

uint256 amountToLiquify = liqFee.div(2);
uint256 amountToSwap = totalFee.sub(amountToLiquify);

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

uint256 balanceBefore = address(this).balance;
uint256 amountBNBLiquidity;

try router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap,
0,
sellPath,
address(this),
block.timestamp
) {
uint256 amountBNB = address(this).balance.sub(balanceBefore);

amountBNBLiquidity = amountBNB.mul(amountToLiquify).div(amountToSwap);
uint256 amountBNBVault = amountBNB.sub(amountBNBLiquidity);

if(amountBNBVault > 0) {
try feeReceiver.onFeeReceived{value: amountBNBVault}(amountBNBVault) {} catch {}
}
_vaultFeeCollected -= vaultFee;
} catch {}

if(amountToLiquify > 0) {
uint256 contractBalance = balanceOf(address(this));
try router.addLiquidityETH{value: amountBNBLiquidity}(
address(this),
amountToLiquify,
0,
0,
DEAD,
block.timestamp
) {
emit AutoLiquify(amountBNBLiquidity, amountToLiquify);
_liqFeeCollected -= contractBalance.sub(balanceOf(address(this)));
}
catch {}
}
}

function _getReflectionRate() private view returns (uint256) {
uint256 reflectionSupply = _reflectionTotal;
uint256 tokenSupply = _tokenTotal;
for (uint256 i = 0; i < _excluded.length; i ) {
if (_reflectionBalance[_excluded[i]] > reflectionSupply || _tokenBalance[_excluded[i]] > tokenSupply)
return _reflectionTotal.div(_tokenTotal);
reflectionSupply = reflectionSupply.sub(_reflectionBalance[_excluded[i]]);
tokenSupply = tokenSupply.sub(_tokenBalance[_excluded[i]]);
}
if (reflectionSupply < _reflectionTotal.div(_tokenTotal)) return _reflectionTotal.div(_tokenTotal);
return reflectionSupply.div(tokenSupply);
}

function setTaxless(address account, bool value) external onlyOwner {
isTaxless[account] = value;
}

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

function setFeeActive(bool value) external onlyOwner {
isFeeActive = value;
}

function validateFee() view internal {
require(_taxFee[0] _vaultFee[0] _marketingFee[0] _liqFee[0] <= MAX_FEE, "Buy Fee too high");
require(_taxFee[1] _vaultFee[1] _marketingFee[1] _liqFee[1] <= MAX_FEE, "Sell Fee too high");
require(_taxFee[2] _vaultFee[2] _marketingFee[2] _liqFee[2] <= MAX_FEE, "P2P Fee too high");
}

function increaseSwapAllowance() external onlyOwner {
_approve(address(this), address(router), uint256(-1));
}

function setTaxFee(uint256 buy, uint256 sell, uint256 p2p) external onlyOwner {
_taxFee[0] = buy;
_taxFee[1] = sell;
_taxFee[2] = p2p;
validateFee();
}

function setBNBVaultFee(uint256 buy, uint256 sell, uint256 p2p) external onlyOwner {
_vaultFee[0] = buy;
_vaultFee[1] = sell;
_vaultFee[2] = p2p;
validateFee();
}


function setMarketingFee(uint256 buy, uint256 sell, uint256 p2p) external onlyOwner {
_marketingFee[0] = buy;
_marketingFee[1] = sell;
_marketingFee[2] = p2p;
validateFee();
}

function setLiquidityFee(uint256 buy, uint256 sell, uint256 p2p) external onlyOwner {
_liqFee[0] = buy;
_liqFee[1] = sell;
_liqFee[2] = p2p;
validateFee();
}

function setMarketingWallet(address wallet) external onlyOwner {
marketingWallet = wallet;
}

function setVaultFeeReceiver(IFeeReceiver _feeReceiver) external onlyOwner {
require(address(_feeReceiver) != address(0));
feeReceiver = _feeReceiver;
}

function setMaxTxAmountPercent(uint256 percentDecimals, uint256 percent) external onlyOwner {
maxTxAmount = _tokenTotal.mul(percent).div(10**percentDecimals);
require(maxTxAmount >= MAX_TX_AMOUNT_LIMIT, "MaxTx amount is too low");
}

function setMinTokensBeforeSwap(uint256 amount) external onlyOwner {
minTokensBeforeSwap = amount;
}

function setMaxSwapPercent(uint256 percent) external onlyOwner {
require(percent <= MAX_SWAP_PERCENT_LIMIT, "max swap percent too high");
maxSwapPercent = percent;
}

function withdrawAccidentallyStuckTokens(IERC20 token, address recipient, uint256 amount) external onlyOwner {
require(address(token) != address(this), "Token not allowed!");
token.transfer(recipient, amount);
}

function withdrawAccidentallyStuckEth(address payable recipient, uint256 amount) external onlyOwner {
recipient.transfer(amount);
}

function setEnableAntiBot(bool _enable) external onlyOwner {
antiBotEnabled = _enable;
}

receive() external payable {
require(msg.sender == address(router), "Only router is allowed");
}
}