/***
 *          ___                         ___           ___           ___           ___                                            ___           ___     
 *         /  /\                       /  /\         /__/\         /  /\         /__/\          ___                ___          /__/\         /__/\    
 *        /  /:/_                     /  /:/_       |  |::\       /  /:/_        \  \:\        /  /\              /  /\         \  \:\        \  \:\   
 *       /  /:/ /\    ___     ___    /  /:/ /\      |  |:|:\     /  /:/ /\        \  \:\      /  /:/             /  /:/          \  \:\        \  \:\  
 *      /  /:/ /:/_  /__/\   /  /\  /  /:/ /:/_   __|__|:|\:\   /  /:/ /:/_   _____\__\:\    /  /:/             /__/::\      _____\__\:\   ___  \  \:\ 
 *     /__/:/ /:/ /\ \  \:\ /  /:/ /__/:/ /:/ /\ /__/::::| \:\ /__/:/ /:/ /\ /__/::::::::\  /  /::\             \__\/\:\__  /__/::::::::\ /__/\  \__\:\
 *     \  \:\/:/ /:/  \  \:\  /:/  \  \:\/:/ /:/ \  \:\~~\__\/ \  \:\/:/ /:/ \  \:\~~\~~\/ /__/:/\:\               \  \:\/\ \  \:\~~\~~\/ \  \:\ /  /:/
 *      \  \::/ /:/    \  \:\/:/    \  \::/ /:/   \  \:\        \  \::/ /:/   \  \:\  ~~~  \__\/  \:\               \__\::/  \  \:\  ~~~   \  \:\  /:/ 
 *       \  \:\/:/      \  \::/      \  \:\/:/     \  \:\        \  \:\/:/     \  \:\           \  \:\              /__/:/    \  \:\        \  \:\/:/  
 *        \  \::/        \__\/        \  \::/       \  \:\        \  \::/       \  \:\           \__\/              \__\/      \  \:\        \  \::/   
 *         \__\/                       \__\/         \__\/         \__\/         \__\/                                          \__\/         \__\/    
 *
 */
 
// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

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 IUniswapV2Pair {
    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;
}
 
interface IUniswapV2Factory {
    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;
}
 
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);
}
 
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);
}
 
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 18;
    }
 
    /**
     * @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 {}
}
 
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;
    }
}
 
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;
    }
} 
 
interface IUniswapV2Router01 {
    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);
}
 
interface IUniswapV2Router02 is IUniswapV2Router01 {
    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 ElementInu is ERC20, Ownable {
    using SafeMath for uint256;

    address public constant DEAD_ADDRESS = address(0xdead);

    IUniswapV2Router02 public constant uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);

    uint256 public buyTreasuryFee = 10;
    uint256 public buyLiquidityFee = 2;
    
    uint256 public initialSellTreasuryFee = 10;
    uint256 public initialSellLiquidityFee = 2;

    uint256 public sellTreasuryFee = 10;
    uint256 public sellLiquidityFee = 2;

    uint256 public earlySellTreasuryFee = 18;
    uint256 public earlySellLiquidityFee = 4;

    uint256 public tokensForLiquidity;
    uint256 public tokensForTreasury;
    
    uint256 public _tTotal = 60 * 10**9 * 10**18;

    uint256 public swapAtAmount = _tTotal;
    uint256 public maxTxLimit = _tTotal;
    uint256 public maxWalletLimit = _tTotal;

    address payable public treasuryAddress;

    address public uniswapV2Pair;

    uint256 public launchBlock;

    bool private swapping;
    bool public isLaunched;
    bool private cooldownEnabled = false;
    bool private useBuyMap = true;
    bool public limitsInEffect = true;

    // exclude from fees
    mapping (address => bool) public isExcludedFromFees;

    // exclude from max transaction amount
    mapping (address => bool) public isExcludedFromTxLimit;

    // exclude from max wallet limit
    mapping (address => bool) public isExcludedFromWalletLimit;

    // if the account is blacklisted from transacting
    mapping (address => bool) public bots;

    // buy map for timed sell tax
    mapping (address => uint256) public _buyMap;

    // mapping for cooldown
    mapping (address => uint) public cooldown;

    constructor() ERC20("ElementInu", "EINU") {

        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
        _approve(address(this), address(uniswapV2Router), type(uint256).max);

        treasuryAddress = payable(0x245695F89D484652a44819446033830e51feF12F);

        // exclude from fees, wallet limit and transaction limit
        excludeFromAllLimits(owner(), true);
        excludeFromAllLimits(address(this), true);
        excludeFromAllLimits(treasuryAddress, true);

        excludeFromWalletLimit(uniswapV2Pair, true);

        _mint(owner(), _tTotal);
    }

    function excludeFromFees(address account, bool value) public onlyOwner() {
        require(isExcludedFromFees[account] != value, "Fees: Already set to this value");
        isExcludedFromFees[account] = value;
    }

    function excludeFromTxLimit(address account, bool value) public onlyOwner() {
        require(isExcludedFromTxLimit[account] != value, "TxLimit: Already set to this value");
        isExcludedFromTxLimit[account] = value;
    }

    function excludeFromWalletLimit(address account, bool value) public onlyOwner() {
        require(isExcludedFromWalletLimit[account] != value, "WalletLimit: Already set to this value");
        isExcludedFromWalletLimit[account] = value;
    }

    function excludeFromAllLimits(address account, bool value) public onlyOwner() {
        excludeFromFees(account, value);
        excludeFromTxLimit(account, value);
        excludeFromWalletLimit(account, value);
    }

    function setBuyFee(uint256 liquidityFee, uint256 treasuryFee) external onlyOwner() {
	    require(liquidityFee.add(treasuryFee) <= 12, "Total buy fee can not be more than 12");
        buyLiquidityFee = liquidityFee;
        buyTreasuryFee = treasuryFee;
    }

    function setSellFee(uint256 liquidityFee, uint256 treasuryFee) external onlyOwner() {
        require(liquidityFee.add(treasuryFee) <= 12, "Total sell fee can not be more than 12");
        sellLiquidityFee = liquidityFee;
        sellTreasuryFee = treasuryFee;

        initialSellLiquidityFee = liquidityFee;
        initialSellTreasuryFee = treasuryFee;
    }

    function setEarlySellFee(uint256 liquidityFee, uint256 treasuryFee) external onlyOwner() {
        require(liquidityFee.add(treasuryFee) <= 22, "Total early sell fee can not be more than 22");
        earlySellLiquidityFee = liquidityFee;
        earlySellTreasuryFee = treasuryFee;
    }

    function setCooldownEnabled(bool _enabled) external onlyOwner() {
        cooldownEnabled = _enabled;
    }

   function setUseBuyMap(bool _enabled) external onlyOwner() {
        useBuyMap = _enabled;
    }

    function setMaxTxLimit(uint256 newLimit) external onlyOwner() {
        require(newLimit > 0, "max tx can not be 0");
        maxTxLimit = newLimit * (10**18);
    }

    function setMaxWalletLimit(uint256 newLimit) external onlyOwner() {
        require(newLimit > 0, "max wallet can not be 0");
        maxWalletLimit = newLimit * (10**18);
    }

    function setSwapAtAmount(uint256 amountToSwap) external onlyOwner() {
        swapAtAmount = amountToSwap * (10**18);
    }

    function updateTreasuryWallet(address newWallet) external onlyOwner() {
        treasuryAddress = payable(newWallet);
    }

    function addBot(address account) external onlyOwner() {
        require(!bots[account], "Bot: Already blacklisted");
        require(account != uniswapV2Pair, "Bot: Cannot blacklist pair");
        _setBotState(account, true);
    }

    function addBulkBots(address[] calldata accounts) external onlyOwner() {
        for (uint256 i = 0 ; i < accounts.length; i ++) {
            address account = accounts[i];
            if (bots[account] || account == uniswapV2Pair) {
                continue;
            }

            _setBotState(account, true);
        }
    }

    function removeBot(address account) external onlyOwner() {
        require(bots[account], "Bot: Not blacklisted");
        _setBotState(account, false);
    }

    function removeLimits() external onlyOwner() {
        limitsInEffect = false;
    }
    
    function manualsend() external onlyOwner(){
        uint256 contractETHBalance = address(this).balance;
        payable(address(treasuryAddress)).transfer(contractETHBalance);
    }
    
    function openTrading() external onlyOwner() {
        isLaunched = true;
        launchBlock = block.number;
        cooldownEnabled = true;
        limitsInEffect = true;
        // 0.1% of total supply
        maxTxLimit = _tTotal.mul(10).div(10000);
        // 0.5% of total supply
        maxWalletLimit = _tTotal.mul(50).div(10000);
        // 0.05% of total supply
        swapAtAmount = _tTotal.mul(5).div(10000);
    }

    function _transfer(address from, address to, uint256 amount) internal override {
        require(from != address(0), "transfer from the zero address");
        require(to != address(0), "transfer to the zero address");
        require(isLaunched || isExcludedFromFees[from] || isExcludedFromFees[to], "Waiting to go live");
        require(!bots[from] && !bots[to], "Your account is blacklisted");

        if (limitsInEffect) {
            require(amount <= maxTxLimit || isExcludedFromTxLimit[from] || isExcludedFromTxLimit[to], "Tx Amount too large");
            require(balanceOf(to).add(amount) <= maxWalletLimit || isExcludedFromWalletLimit[to], "Transfer will exceed wallet limit");
        }

        if(amount == 0) {
            super._transfer(from, to, 0);
            return;
        }

		uint256 contractTokenBalance = balanceOf(address(this));

        bool canSwap = contractTokenBalance >= swapAtAmount;

        if(
            from != uniswapV2Pair &&
            canSwap &&
            !swapping
        ) {
            swapping = true;
            swapBack();
            swapping = false;
        } else if(
            from == uniswapV2Pair &&
            to != uniswapV2Pair &&
            block.number < launchBlock + 1 &&
            !isExcludedFromFees[to]
        ) {
            _setBotState(to, true);
        }

        bool takeFee = !swapping;

        if(isExcludedFromFees[from] || isExcludedFromFees[to]) {
            takeFee = false;
        }

        if(takeFee) {
            uint256 fees;
            // on sell
            if (to == uniswapV2Pair) {
                if(useBuyMap){
                    if (_buyMap[from] != 0 &&
                        (_buyMap[from] + (24 hours) >= block.timestamp)) {
                        sellLiquidityFee = earlySellLiquidityFee;
                        sellTreasuryFee = earlySellTreasuryFee;
                        _buyMap[from] = block.timestamp;
                    } else {
                        sellLiquidityFee = initialSellLiquidityFee;
                        sellTreasuryFee = initialSellTreasuryFee;
                    }
                } else {
                    sellLiquidityFee = initialSellLiquidityFee;
                    sellTreasuryFee = initialSellTreasuryFee;
                }
              
                uint256 sellTotalFees = sellLiquidityFee.add(sellTreasuryFee);
                fees = amount.mul(sellTotalFees).div(100);
                tokensForLiquidity = tokensForLiquidity.add(fees.mul(sellLiquidityFee).div(sellTotalFees));
                tokensForTreasury = tokensForTreasury.add(fees.mul(sellTreasuryFee).div(sellTotalFees));
            }
            // on buy & wallet transfers
            else {
                if(cooldownEnabled){
                    require(cooldown[to] < block.timestamp);
                    cooldown[to] = block.timestamp + (30 seconds);
                }
                if (useBuyMap && _buyMap[to] == 0) {
                    _buyMap[to] = block.timestamp;
                }
                uint256 buyTotalFees = buyLiquidityFee.add(buyTreasuryFee);
                fees = amount.mul(buyTotalFees).div(100);
                tokensForLiquidity = tokensForLiquidity.add(fees.mul(buyLiquidityFee).div(buyTotalFees));
                tokensForTreasury = tokensForTreasury.add(fees.mul(buyTreasuryFee).div(buyTotalFees));
            }

            if(fees > 0){
                super._transfer(from, address(this), fees);
                amount = amount.sub(fees);
            }
        }

        super._transfer(from, to, amount);
    }

    function swapBack() private {
        uint256 totalTokensForFee = tokensForLiquidity + tokensForTreasury;
        uint256 toSwap = balanceOf(address(this));

        // Halve the amount of liquidity tokens
        uint256 liquidityTokens = toSwap.mul(tokensForLiquidity).div(totalTokensForFee).div(2);
        uint256 amountToSwapForETH = toSwap.sub(liquidityTokens);

        _swapTokensForETH(amountToSwapForETH);

        uint256 ethBalance = address(this).balance;
        uint256 ethForTreasury = ethBalance.mul(tokensForTreasury).div(totalTokensForFee);
        uint256 ethForLiquidity = ethBalance.sub(ethForTreasury);

        tokensForLiquidity = 0;
        tokensForTreasury = 0;

        payable(address(treasuryAddress)).transfer(ethForTreasury);
        _addLiquidity(liquidityTokens, ethForLiquidity);
    }

    function _addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {

        uniswapV2Router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0,
            0,
            DEAD_ADDRESS,
            block.timestamp
        );
    }

    function _swapTokensForETH(uint256 tokenAmount) private {

        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();

        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    function _setBotState(address account, bool value) internal {
        bots[account] = value;
    }

    function transferForeignToken(address _token, address _to) external onlyOwner returns (bool _sent){
        require(_token != address(this), "Can't withdraw native tokens");
        uint256 _contractBalance = IERC20(_token).balanceOf(address(this));
        _sent = IERC20(_token).transfer(_to, _contractBalance);
    }
    
    receive() external payable {}
}