// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.4;


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

function _msgData() internal view virtual returns (bytes calldata) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}


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 Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);

/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);

/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}

interface IUniswapV2Factory {
event PairCreated(
address indexed token0,
address indexed token1,
address pair,
uint256
);

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(uint256) external view returns (address pair);

function allPairsLength() external view returns (uint256);

function createPair(address tokenA, address tokenB)
external
returns (address pair);

function setFeeTo(address) external;

function setFeeToSetter(address) external;
}

interface IUniswapV2Pair {
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
event Transfer(address indexed from, address indexed to, uint256 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 (uint256);

function balanceOf(address owner) external view returns (uint256);

function allowance(address owner, address spender)
external
view
returns (uint256);

function approve(address spender, uint256 value) external returns (bool);

function transfer(address to, uint256 value) external returns (bool);

function transferFrom(
address from,
address to,
uint256 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 (uint256);

function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;

event Mint(address indexed sender, uint256 amount0, uint256 amount1);
event Burn(
address indexed sender,
uint256 amount0,
uint256 amount1,
address indexed to
);
event Swap(
address indexed sender,
uint256 amount0In,
uint256 amount1In,
uint256 amount0Out,
uint256 amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);

function MINIMUM_LIQUIDITY() external pure returns (uint256);

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 (uint256);

function price1CumulativeLast() external view returns (uint256);

function kLast() external view returns (uint256);

function mint(address to) external returns (uint256 liquidity);

function burn(address to)
external
returns (uint256 amount0, uint256 amount1);

function swap(
uint256 amount0Out,
uint256 amount1Out,
address to,
bytes calldata data
) external;

function skim(address to) external;

function sync() external;

function initialize(address, address) 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
);

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

function removeLiquidityETH(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountToken, uint256 amountETH);

function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountA, uint256 amountB);

function removeLiquidityETHWithPermit(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountToken, uint256 amountETH);

function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);

function swapTokensForExactTokens(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);

function swapExactETHForTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);

function swapTokensForExactETH(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);

function swapExactTokensForETH(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);

function swapETHForExactTokens(
uint256 amountOut,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);

function quote(
uint256 amountA,
uint256 reserveA,
uint256 reserveB
) external pure returns (uint256 amountB);

function getAmountOut(
uint256 amountIn,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountOut);

function getAmountIn(
uint256 amountOut,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountIn);

function getAmountsOut(uint256 amountIn, address[] calldata path)
external
view
returns (uint256[] memory amounts);

function getAmountsIn(uint256 amountOut, address[] calldata path)
external
view
returns (uint256[] memory amounts);
}

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

function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountETH);

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;

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

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() {
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;
}
}

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;
}
}

/*
MIT License

Copyright (c) 2018 requestnetwork
Copyright (c) 2018 Fragments, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
*/

/**
* @title SafeMathInt
* @dev Math operations for int256 with overflow safety checks.
*/
library SafeMathInt {
int256 private constant MIN_INT256 = int256(1) << 255;
int256 private constant MAX_INT256 = ~(int256(1) << 255);

/**
* @dev Multiplies two int256 variables and fails on overflow.
*/
function mul(int256 a, int256 b) internal pure returns (int256) {
int256 c = a * b;

// Detect overflow when multiplying MIN_INT256 with -1
require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
require((b == 0) || (c / b == a));
return c;
}

/**
* @dev Division of two int256 variables and fails on overflow.
*/
function div(int256 a, int256 b) internal pure returns (int256) {
// Prevent overflow when dividing MIN_INT256 by -1
require(b != -1 || a != MIN_INT256);

// Solidity already throws when dividing by 0.
return a / b;
}

/**
* @dev Subtracts two int256 variables and fails on overflow.
*/
function sub(int256 a, int256 b) internal pure returns (int256) {
int256 c = a - b;
require((b >= 0 && c <= a) || (b < 0 && c > a));
return c;
}

/**
* @dev Adds two int256 variables and fails on overflow.
*/
function add(int256 a, int256 b) internal pure returns (int256) {
int256 c = a b;
require((b >= 0 && c >= a) || (b < 0 && c < a));
return c;
}

/**
* @dev Converts to absolute value, and fails on overflow.
*/
function abs(int256 a) internal pure returns (int256) {
require(a != MIN_INT256);
return a < 0 ? -a : a;
}

function toUint256Safe(int256 a) internal pure returns (uint256) {
require(a >= 0);
return uint256(a);
}
}

/**
* @title SafeMathUint
* @dev Math operations with safety checks that revert on error
*/
library SafeMathUint {
function toInt256Safe(uint256 a) internal pure returns (int256) {
int256 b = int256(a);
require(b >= 0);
return b;
}
}

interface IPinkAntiBot {
function setTokenOwner(address owner) external;

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

contract ERC20 is Context, IERC20, IERC20Metadata {
using SafeMath for uint256;

mapping(address => uint256) private _balances;

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

uint256 private _totalSupply;

string private _name;
string private _symbol;

/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}

/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}

/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}

/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5,05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 9;
}

/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}

/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account)
public
view
virtual
override
returns (uint256)
{
return _balances[account];
}

/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `recipient` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address recipient, uint256 amount)
public
virtual
override
returns (bool)
{
_transfer(_msgSender(), recipient, amount);
return true;
}

/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender)
public
view
virtual
override
returns (uint256)
{
return _allowances[owner][spender];
}

/**
* @dev See {IERC20-approve}.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount)
public
virtual
override
returns (bool)
{
_approve(_msgSender(), spender, amount);
return true;
}

/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* Requirements:
*
* - `sender` and `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
* - the caller must have allowance for ``sender``'s tokens of at least
* `amount`.
*/
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;
}

/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue)
public
virtual
returns (bool)
{
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender].add(addedValue)
);
return true;
}

/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
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;
}

/**
* @dev Moves tokens `amount` from `sender` to `recipient`.
*
* This is internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `sender` cannot be the zero address.
* - `recipient` cannot be the zero address.
* - `sender` must have a balance of at least `amount`.
*/
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");

_beforeTokenTransfer(sender, recipient, amount);

_balances[sender] = _balances[sender].sub(
amount,
"ERC20: transfer amount exceeds balance"
);
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}

/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");

_beforeTokenTransfer(address(0), account, amount);

_totalSupply = _totalSupply.add(amount);
_balances[account] = _balances[account].add(amount);
emit Transfer(address(0), account, amount);
}

/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");

_beforeTokenTransfer(account, address(0), amount);

_balances[account] = _balances[account].sub(
amount,
"ERC20: burn amount exceeds balance"
);
_totalSupply = _totalSupply.sub(amount);
emit Transfer(account, address(0), amount);
}

/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
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);
}

/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be to transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}

contract UFDToken is ERC20, Ownable {
using SafeMath for uint256;

IPinkAntiBot public pinkAntiBot;
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;

bool private swapping;

address public deadWallet = 0x000000000000000000000000000000000000dEaD;

mapping(address => bool) private _liquidityHolders;
mapping(address => bool) private _isSniper;

uint256 public buyTax = 4;
uint256 public sellTax = 8;
uint256 public liquidityFee = 2;
uint256 public buybackFee = 6;
uint256 public totalFees = (liquidityFee).add(buybackFee);
address payable public _buybackWalletAddress;
address public currentLiqPair;

uint256 public launchedAt = 0;
uint256 public swapAndLiquifycount = 0;
uint256 public snipersCaught = 0;
uint256 public lastblocknumber = 0;
uint256 public lastPairBalance = 0;
uint256 public blockchunk = 5;
uint256 public _startTimeForSwap;
uint256 public _intervalSecondsForSwap = 30 * 1 seconds;
uint256 public divgas = 30000;
bool private sniperProtection = true;
bool public _hasLiqBeenAdded = false;
bool public checkUptrendActive = false;
bool public pinkAntiBotEnabled = false;

uint256 public bottimer = 3;

uint256 public minimumTokensBeforeSwap = 10000 * (10**9);
uint256 public _maxTxAmount = 10000000000 * (10**9);
uint256 public _maxWallet = 100000000000 * (10**9);

// exlcude from fees and max transaction amount
mapping(address => bool) private _isExcludedFromFees;

// store addresses that a automatic market maker pairs. Any transfer *to* these addresses
// could be subject to a maximum transfer amount
mapping(address => bool) public automatedMarketMakerPairs;

event UpdateUniswapV2Router(
address indexed newAddress,
address indexed oldAddress
);

event ExcludeFromFees(address indexed account, bool isExcluded);
event ExcludeMultipleAccountsFromFees(address[] accounts, bool isExcluded);

event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);

event LiquidityWalletUpdated(
address indexed newLiquidityWallet,
address indexed oldLiquidityWallet
);

event GasForProcessingUpdated(
uint256 indexed newValue,
uint256 indexed oldValue
);

event SwapandLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);

constructor(
address _initiationAddress,
address _initiationBuyback,
address pinkAntiBot_
) ERC20("UFDToken", "UFD") {
_buybackWalletAddress = payable(_initiationBuyback);

// Pancakeswap Router Mainnet v2
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
0x10ED43C718714eb63d5aA57B78B54704E256024E
);
//
// Create a uniswap pair for this new token
address _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
pinkAntiBot = IPinkAntiBot(pinkAntiBot_);
pinkAntiBot.setTokenOwner(msg.sender);
uniswapV2Router = _uniswapV2Router;
uniswapV2Pair = _uniswapV2Pair;
currentLiqPair = _uniswapV2Pair;

_setAutomatedMarketMakerPair(_uniswapV2Pair, true);

_liquidityHolders[_initiationAddress] = true;
// exclude from paying fees or having max transaction amount
excludeFromFees(_initiationAddress, true);
excludeFromFees(address(this), true);
_startTimeForSwap = block.timestamp;
lastblocknumber = block.number;

/*
_mint is an internal function in ERC20.sol that is only called here,
and CANNOT be called ever again
*/
_mint(_initiationAddress, 10000000000 * (10**9));
transferOwnership(_initiationAddress);
}

receive() external payable {}

function updateUniswapV2Router(address newAddress) public onlyOwner {
require(
newAddress != address(uniswapV2Router),
"MicroPets: The router already has that address"
);
emit UpdateUniswapV2Router(newAddress, address(uniswapV2Router));
uniswapV2Router = IUniswapV2Router02(newAddress);
address _uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())
.createPair(address(this), uniswapV2Router.WETH());
uniswapV2Pair = _uniswapV2Pair;
}

function excludeFromFees(address account, bool excluded) public onlyOwner {
require(
_isExcludedFromFees[account] != excluded,
"MicroPets: Account is already the value of 'excluded'"
);
_isExcludedFromFees[account] = excluded;

emit ExcludeFromFees(account, excluded);
}

function excludeMultipleAccountsFromFees(
address[] calldata accounts,
bool excluded
) public onlyOwner {
for (uint256 i = 0; i < accounts.length; i ) {
_isExcludedFromFees[accounts[i]] = excluded;
}

emit ExcludeMultipleAccountsFromFees(accounts, excluded);
}

function setBuybackWallet(address payable wallet) external onlyOwner {
_buybackWalletAddress = wallet;
}

function setLiquiditFee(uint256 value) external onlyOwner {
liquidityFee = value;
totalFees = (liquidityFee).add(buybackFee);
}

function setBuybackFee(uint256 value) external onlyOwner {
buybackFee = value;
totalFees = (liquidityFee).add(buybackFee);
}

function setAutomatedMarketMakerPair(address pair, bool value)
public
onlyOwner
{
require(
pair != uniswapV2Pair,
"MicroPets: The PancakeSwap pair cannot be removed from automatedMarketMakerPairs"
);

_setAutomatedMarketMakerPair(pair, value);
}

function _setAutomatedMarketMakerPair(address pair, bool value) private {
require(
automatedMarketMakerPairs[pair] != value,
"MicroPets: Automated market maker pair is already set to that value"
);
automatedMarketMakerPairs[pair] = value;

emit SetAutomatedMarketMakerPair(pair, value);
}

function isExcludedFromFees(address account) public view returns (bool) {
return _isExcludedFromFees[account];
}

function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");

if (pinkAntiBotEnabled) {
pinkAntiBot.onPreTransferCheck(from, to, amount);
}

if (!_isExcludedFromFees[from] && !_isExcludedFromFees[to]) {
require(
amount <= _maxTxAmount,
"Transfer amount exceeds the maxTxAmount."
);
if (to != uniswapV2Pair) {
require(
balanceOf(to).add(amount) <= _maxWallet,
"Transfer exceeds max"
);
}
}

if (sniperProtection) {
// if sender is a sniper address, reject the sell.
if (isSniper(from)) {
revert("Sniper rejected.");
}

// check if this is the liquidity adding tx to startup.
if (!_hasLiqBeenAdded) {
_checkLiquidityAdd(from, to);
} else {
if (
launchedAt > 0 &&
from == uniswapV2Pair &&
!_liquidityHolders[from] &&
!_liquidityHolders[to]
) {
if (block.number - launchedAt < bottimer) {
_isSniper[to] = true;
snipersCaught ;
}
}
}
}

if (amount == 0) {
super._transfer(from, to, 0);
return;
}

uint256 contractTokenBalance = balanceOf(address(this));

bool canSwap = contractTokenBalance >= minimumTokensBeforeSwap;

bool uptrendEstablished;

if (checkUptrendActive) {
uptrendEstablished = checkUptrend();
} else {
uptrendEstablished = true;
}

if (lastblocknumber.add(blockchunk) < block.number && launched()) {
lastblocknumber = block.number;
lastPairBalance = balanceOf(currentLiqPair);
}

if (
canSwap &&
!swapping &&
!automatedMarketMakerPairs[from] &&
from != owner() &&
to != owner()
) {
if (
uptrendEstablished &&
_startTimeForSwap _intervalSecondsForSwap <= block.timestamp
) {
_startTimeForSwap = block.timestamp;
swapAndLiquifycount = swapAndLiquifycount.add(1);
swapping = true;

SwapAndLiquify(contractTokenBalance);

swapping = false;
}
}

bool takeFee = !swapping;

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

uint256 fees;
if (takeFee) {
if (to == uniswapV2Pair) {
if (sellTax > 0) {
fees = amount.mul(sellTax).div(100);

amount = amount.sub(fees);

super._transfer(from, address(this), fees);
}
} else {
if (buyTax > 0) {
fees = amount.mul(buyTax).div(100);

amount = amount.sub(fees);

super._transfer(from, address(this), fees);
}
}
}
super._transfer(from, to, amount);
}

function swapTokensForEth(uint256 tokenAmount) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();

_approve(address(this), address(uniswapV2Router), tokenAmount);

// make the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}

function manualSwapnLiq() public onlyOwner {
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= minimumTokensBeforeSwap;
if (canSwap) {
_startTimeForSwap = block.timestamp;
swapAndLiquifycount = swapAndLiquifycount.add(1);
swapping = true;
SwapAndLiquify(minimumTokensBeforeSwap);
swapping = false;
}
}

function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// approve token transfer to cover all possible scenarios
_approve(address(this), address(uniswapV2Router), tokenAmount);

// add the liquidity
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
owner(),
block.timestamp
);
}

function SwapAndLiquify(uint256 tokens) private {
uint256 tokensforLiq = 0;
if (liquidityFee == 0) {
tokensforLiq = 0;
} else {
tokensforLiq = tokens.mul(liquidityFee).div(totalFees);
}
uint256 tokensforBuyback = 0;
if (buybackFee == 0) {
tokensforBuyback = 0;
} else {
tokensforBuyback = tokens.mul(buybackFee).div(totalFees);
}

uint256 half = 0;
if (tokensforLiq != 0) {
half = tokensforLiq.div(2);
}

uint256 initialBalance = address(this).balance;
swapTokensForEth(tokensforBuyback.add(half));

uint256 transferredBalance = address(this).balance.sub(initialBalance);

uint256 otherHalf = tokensforLiq.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

// add liquidity to uniswap
uint256 bnbForLiq = 0;
if (tokensforLiq != 0) {
bnbForLiq = transferredBalance.mul(liquidityFee).div(
liquidityFee.add(buybackFee)
);
addLiquidity(otherHalf, bnbForLiq);
}

emit SwapandLiquify(half, bnbForLiq, otherHalf);
uint256 buybackBalance = address(this).balance;
if (buybackBalance > 0) {
_buybackWalletAddress.transfer(buybackBalance);
}
}

function transferContractToken(
address _token,
address _to,
uint256 _quant
) public onlyOwner returns (bool _sent) {
_sent = IERC20(_token).transfer(_to, _quant);
}

function setBuySellTax(uint256 _buyTax, uint256 _sellTax)
external
onlyOwner
{
buyTax = _buyTax;
sellTax = _sellTax;
}

function changeSnipe(bool _snipe) external onlyOwner {
sniperProtection = _snipe;
}

function Sweep() external onlyOwner {
uint256 balance = address(this).balance;
payable(owner()).transfer(balance);
}

function GetSwapMinutes() public view returns (uint256) {
return _intervalSecondsForSwap.div(60);
}

function SetSwapSeconds(uint256 newSeconds) external onlyOwner {
_intervalSecondsForSwap = newSeconds * 1 seconds;
}

function checkUptrend() public view returns (bool) {
if (lastblocknumber.add(blockchunk) < block.number) {
if (balanceOf(currentLiqPair) < lastPairBalance) {
return true;
}
}
return false;
}

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

function setLastBlockNumber(uint256 _number) public onlyOwner {
lastblocknumber = _number;
}

function setLastPairBalance() public onlyOwner {
lastPairBalance = balanceOf(currentLiqPair);
}

function setminimumTokensBeforeSwap(uint256 _new) public onlyOwner {
minimumTokensBeforeSwap = _new;
}

function changeDivgas(uint256 _new) public onlyOwner {
divgas = _new;
}

function setBlockChunk(uint256 _chunk) external onlyOwner {
blockchunk = _chunk;
}

function setCurrentLiqPair(address _pair) public onlyOwner {
currentLiqPair = _pair;
}

function botTimer(uint256 _timer) public onlyOwner {
bottimer = _timer;
}

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

function setMaxTxAmount(uint256 maxTxAmount) external onlyOwner {
require(maxTxAmount > totalSupply().div(10000), "max tx too low");
_maxTxAmount = maxTxAmount;
}

function setcheckUptrendActive(bool _enabled) public onlyOwner {
checkUptrendActive = _enabled;
}

function _checkLiquidityAdd(address from, address to) private {
// if liquidity is added by the _liquidityholders set trading enables to true and start the anti sniper timer
require(!_hasLiqBeenAdded, "Liquidity already added and marked.");
if (_liquidityHolders[from] && to == uniswapV2Pair) {
_hasLiqBeenAdded = true;
launchedAt = block.number;
}
}

function isSniper(address account) public view returns (bool) {
return _isSniper[account];
}

function removeSniper(address account) external onlyOwner {
require(_isSniper[account], "Account is not a recorded sniper.");
_isSniper[account] = false;
}

function changeMaxWallet(uint256 maxWallet) external onlyOwner {
require(maxWallet > totalSupply().div(10000), "max wallet too low");
_maxWallet = maxWallet;
}

function launch() public onlyOwner {
launchedAt = block.number;
_hasLiqBeenAdded = true;
}

function setDxSaleAddress(address dxRouter, address presaleRouter)
external
onlyOwner
{
_liquidityHolders[dxRouter] = true;
_isExcludedFromFees[dxRouter] = true;
_liquidityHolders[presaleRouter] = true;
_isExcludedFromFees[presaleRouter] = true;
}

function multisend(address[] memory dests, uint256[] memory values)
public
onlyOwner
returns (uint256)
{
uint256 i = 0;
while (i < dests.length) {
super._transfer(msg.sender, dests[i], values[i]);
i = 1;
}
return (i);
}

function addLiquidityHolderSolo(address holder, bool _choice)
external
onlyOwner
{
_liquidityHolders[holder] = _choice;
}

function addLiquidityHolder(address holder) external onlyOwner {
_liquidityHolders[holder] = true;
excludeFromFees(holder, true);
}
}