// File: uniswap/uniswap.sol


pragma solidity >=0.5.0;

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 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;
}
// File: github/OpenZeppelin/openzeppelin-contracts/contracts/utils/Address.sol



pragma solidity >=0.6.2 <0.8.0;

/**
 * @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) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

        uint256 size;
        // solhint-disable-next-line no-inline-assembly
        assembly { size := extcodesize(account) }
        return size > 0;
    }

    /**
     * @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");
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: value }(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data, string memory errorMessage) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.staticcall(data);
        return _verifyCallResult(success, returndata, errorMessage);
    }

    function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private pure returns(bytes memory) {
        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);
            }
        }
    }
}

// File: github/OpenZeppelin/openzeppelin-contracts/contracts/math/SafeMath.sol



pragma solidity >=0.6.0 <0.8.0;

/**
 * @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;
    }
}

// File: github/OpenZeppelin/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol



pragma solidity >=0.6.0 <0.8.0;

/**
 * @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);
}

// File: github/OpenZeppelin/openzeppelin-contracts/contracts/GSN/Context.sol



pragma solidity >=0.6.0 <0.8.0;

/*
 * @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;
    }
}

// File: github/OpenZeppelin/openzeppelin-contracts/contracts/access/Ownable.sol



pragma solidity >=0.6.0 <0.8.0;

/**
 * @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.
 */
abstract 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;
    }
}

// File: contracts/poorquacketh.sol



/*
    POOR Quack ETH
    10% buy tax
    12% sell tax

    Buy and sell taxes CANNOT be changed above 12%, they can only be changed to be lower, this feature protects holders against dev raising taxes
    So taxes cannot be increased past launch amounts, only decreased

    Max hold amount is 2 trillion at launch, cannot be decreased to protect holders
    Max transaction amount is 1.2 trillion at launch, cannot be decreased to protect holders
    These can be increased but not decreased, this protects holders against a honeypot

    All of the above protections ensure the devs cannot change the token into a honeypot.

*/

pragma solidity ^0.6.2;







contract POOR is Context, IERC20, Ownable {
    using SafeMath for uint256;
    using Address for address;

    mapping (address => bool) public _whitelistedUsers;
    mapping (address => uint256) public _rOwned;
    mapping (address => uint256) public _tOwned;
    mapping (address => mapping (address => uint256)) private _allowances;

    mapping (address => bool) private _isExcluded;
    address[] private _excluded;

    uint256 private constant MAX = ~uint256(0);
    uint256 constant private _tTotal = 100000000000000000000000000000000;
    uint256 private _rTotal = (MAX - (MAX % _tTotal));
    uint256 private _tFeeTotal;

    string private constant _name = 'Poor Quack';
    string private constant _symbol = 'POOR';
    uint8 private constant _decimals = 18;

    address payable public _wMarketing = 0x36E58a20C7b96B3503Dc9F2c6aba3af1f4876c83;

    //buy tax
    uint256 public _maxBuyTax = 12;   // max 12% total buy tax
    uint256 public _currentBuyTax = 10;   // 10% total buy tax
    uint256 public _totalBuyTax = 10;   // 10% total buy tax
    uint256 private _previousRefBuyTax = _totalBuyTax;

    //sell tax
    uint256 public _maxSellTax = 12;   // max 12% total buy tax
    uint256 public _currentSellTax = 12;   // 12% total sell tax
    uint256 public _totalSellTax = 12;   // 12% total sell tax
    uint256 private _previousRefSellTax = _totalSellTax;
    
    //breakup of 10% tax
    uint256 public _refPer = 0; // 0% for reflection

    //use percentage function so value is different to refPer, these values are after reflection has been done. 
    //reflection is zero, but can be changed in the future.
    uint256 public _autoLiqPer = 2000;  // 20% auto liqudity, marketing takes the remaining %, in this case 100-20 == 80%

    uint256 public _tokensCollectedAllTime;
    uint256 public _ethCollectedAllTime;
    uint256 public _liqAllTime;
    uint256 public _marketingAllTime;
                                     
    uint256 public _maxHoldAmount =  2000000000000000000000000000000; // 2.0 trillion
    uint256 public _maxTransAmount = 1300000000000000000000000000000; // 1.2 trillion
    uint256 public _minTokensForLiquidity = 30000000000000000000000000000; // 30 billion
    
    bool public _AutoTaxEnabled = false;
    bool public _lockLiquiditiesEnabled = false;
    bool public _timelock_enabled = false;
    bool public _whitelist_enabled = true;
    bool _inLockLiquidities;

    IUniswapV2Router02 public uniswapV2Router;
    address public uniswapV2Pair;

    enum Functions { BUYTAX, SELLTAX, SETMARK, REF, AUTOLIQPER, MINLIQ, MAXHOLD, MAXTX, AUTOTAXENABLED, LIQENABLED, EXC, INC, MARKFALL, SETROUT}    
    uint256 private constant _TIMELOCK = 2 days;
    mapping(Functions => uint256) public timelock;

    modifier notLocked(Functions _fn) {
        require(!_timelock_enabled || timelock[_fn] != 0 && timelock[_fn] <= block.timestamp, "Function is timelocked");
        _;
    }

    modifier lockLiquidities{
        _inLockLiquidities = true;
        _;
        _inLockLiquidities = false;
    }

    constructor () public {

        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);

        //create a uniswap pair for this new token
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), _uniswapV2Router.WETH());

        //set the rest of the contract variables
        uniswapV2Router = _uniswapV2Router;

        _rOwned[_msgSender()] = _rTotal;
        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    //to recieve BNB from uniswapV2Router when swapping
    receive() external payable {}

    function name() public pure returns(string memory) {

        return _name;
    }

    function symbol() public pure returns (string memory) {

        return _symbol;
    }

    function decimals() public pure returns (uint8) {

        return _decimals;
    }

    function totalSupply() public view override returns (uint256) {

        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {

        if (_isExcluded[account]) return _tOwned[account];
        return tokenFromReflection(_rOwned[account]);
    }

    function transfer(address recipient, uint256 amount) public override returns (bool) {

        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(address owner, address spender) public view override returns (uint256) {

        return _allowances[owner][spender];
    }

    function approve(address spender, uint256 amount) public override returns (bool) {

        _approve(_msgSender(), spender, amount);
        return true;
    }

    function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {

        _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 totalFees() public view returns (uint256) {

        return _tFeeTotal;
    }
    
    function removeTax() private {
        
        if(_totalBuyTax == 0) return;
        
        _previousRefBuyTax = _totalBuyTax;
        
        _totalBuyTax = 0;

        if(_totalSellTax == 0) return;
        
        _previousRefSellTax = _totalSellTax;
        
        _totalSellTax = 0;
    }
    
    function restoreTax() private {
        
        _totalBuyTax = _previousRefBuyTax;
        _totalSellTax = _previousRefSellTax;
    }

    function reflect(uint256 tAmount) public {

        address sender = _msgSender();
        require(!_isExcluded[sender], "Excluded addresses cannot call this function");
        (uint256 rAmount,,,,) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rTotal = _rTotal.sub(rAmount);
        _tFeeTotal = _tFeeTotal.add(tAmount);
    }

    function reflectionFromToken(uint256 tAmount, bool deductTransferFee) public view returns(uint256) {

        require(tAmount <= _tTotal, "Amount must be less than supply");
        if (!deductTransferFee) {
            (uint256 rAmount,,,,) = _getValues(tAmount);
            return rAmount;
        } else {
            (,uint256 rTransferAmount,,,) = _getValues(tAmount);
            return rTransferAmount;
        }
    }

    function tokenFromReflection(uint256 rAmount) public view returns(uint256) {

        require(rAmount <= _rTotal, "Amount must be less than total reflections");
        uint256 currentRate =  _getRate();
        return rAmount.div(currentRate);
    }

    function excludeAccount(address account) external onlyOwner() notLocked(Functions.EXC) {

        require(!_isExcluded[account], "Account is already excluded");
        if(_rOwned[account] > 0) {
            _tOwned[account] = tokenFromReflection(_rOwned[account]);
        }
        _isExcluded[account] = true;
        _excluded.push(account);

        timelock[Functions.EXC] = 0;
    }

    function includeAccount(address account) external onlyOwner() notLocked(Functions.INC) {
        
        require(_isExcluded[account], "Account is already included");
        for (uint256 i = 0; i < _excluded.length; i++) {
            if (_excluded[i] == account) {
                _excluded[i] = _excluded[_excluded.length - 1];
				uint256 currentRate = _getRate();
				_rOwned[account] = _tOwned[account].mul(currentRate);
                _tOwned[account] = 0;
                _isExcluded[account] = false;
                _excluded.pop();
                break;
            }
        }

        timelock[Functions.INC] = 0;
    }

    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 _isBuy(address _sender) private view returns (bool) {
        return _sender == uniswapV2Pair;
    }

    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(!_isExcluded[sender]) {
            require(amount <= _maxTransAmount, "Transfer amount exceeds the maxTransAmount.");
        }

        //check if whitelist is enabled if so only allow whitelisted users to transfer
        if(_whitelist_enabled) {
            require(_isWhitelisted(sender), "You are not whitelisted, try again in 10 mins");
        }
        
        if(_AutoTaxEnabled && !_inLockLiquidities && sender != uniswapV2Pair) {
            _doTokenomics();
        }
        
        if(_isExcluded[sender] || _isExcluded[recipient]) {
            removeTax();

        } else {

            if (_isBuy(sender)) {
                uint256 recipient_balance = balanceOf(address(recipient));
                uint256 recipient_new_balance = recipient_balance.add(amount);
                require(recipient_new_balance <= _maxHoldAmount, "Transfer amount exceeds the maxHoldAmount.");
            }
        }
            
        if (_isExcluded[sender] && !_isExcluded[recipient]) {
            _transferFromExcluded(sender, recipient, amount);
        } else if (!_isExcluded[sender] && _isExcluded[recipient]) {
            _transferToExcluded(sender, recipient, amount);
        } else if (_isExcluded[sender] && _isExcluded[recipient]) {
            _transferBothExcluded(sender, recipient, amount);
        } else {
            _transferStandard(sender, recipient, amount);
        }
        
        if(_isExcluded[sender] || _isExcluded[recipient]) {
            restoreTax();
        }
    }

    function _transferStandard(address sender, address recipient, uint256 tAmount) private {

        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function _transferToExcluded(address sender, address recipient, uint256 tAmount) private {

        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function _transferFromExcluded(address sender, address recipient, uint256 tAmount) private {

        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function _transferBothExcluded(address sender, address recipient, uint256 tAmount) private {

        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _reflectFee(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    function _reflectFee(uint256 rFee, uint256 tFee) private {
        
        uint256 newTFee = tFee.mul(_refPer).div(100);
        uint256 newRFee = rFee.mul(_refPer).div(100);

        uint256 tContractFee = tFee.sub(newTFee);
        uint256 rContractFee = rFee.sub(newRFee);
        
        _tOwned[address(this)] = _tOwned[address(this)].add(tContractFee);
        _rOwned[address(this)] = _rOwned[address(this)].add(rContractFee);
        
        _rTotal = _rTotal.sub(newRFee);
        _tFeeTotal = _tFeeTotal.add(newTFee);
    }

    function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256) {

        (uint256 tTransferAmount, uint256 tFee) = _getTValues(tAmount);
        uint256 currentRate =  _getRate();
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, currentRate);
        return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee);
    }

    function _getTValues(uint256 tAmount) private view returns (uint256, uint256) {

        uint256 tFee = tAmount.mul(_totalBuyTax).div(100); //buy - 10% tax is taken or whatever _totalTax is

        if (!_isBuy(msg.sender)) {
            tFee = tAmount.mul(_totalSellTax).div(100); //sell - 12% tax is taken or whatever _totalTax is
        }

        uint256 tTransferAmount = tAmount.sub(tFee);
        return (tTransferAmount, tFee);
    }

    function _getRValues(uint256 tAmount, uint256 tFee, uint256 currentRate) private pure returns (uint256, uint256, uint256) {

        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rFee = tFee.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(rFee);
        return (rAmount, rTransferAmount, rFee);
    }

    function _getRate() private view returns(uint256) {

        (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
        return rSupply.div(tSupply);
    }

    function _getCurrentSupply() private view returns(uint256, uint256) {

        uint256 rSupply = _rTotal;
        uint256 tSupply = _tTotal;

        for (uint256 i = 0; i < _excluded.length; i++) {
            if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply) return (_rTotal, _tTotal);
            rSupply = rSupply.sub(_rOwned[_excluded[i]]);
            tSupply = tSupply.sub(_tOwned[_excluded[i]]);
        }

        if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
        return (rSupply, tSupply);
    }

    function _setMarketingWallet(address payable wallet) public onlyOwner() notLocked(Functions.SETMARK) {

        _wMarketing = wallet;
        timelock[Functions.SETMARK] = 0;
        emit setMarketingWallet(wallet);
    }

    function _setMaxHold(uint256 maxHoldAmount) external onlyOwner() notLocked(Functions.MAXHOLD) {

        require(maxHoldAmount >= 2000000000000000000000000000000, "Max hold amount is below threshold");

        _maxHoldAmount = maxHoldAmount;
        timelock[Functions.MAXHOLD] = 0;
        emit setMaxHold(maxHoldAmount);
    }

    function _setMaxTrans(uint256 maxTransAmount) external onlyOwner() notLocked(Functions.MAXTX) {

        require(maxTransAmount >= 1200000000000000000000000000000, "Max TX amount is below threshold");

        _maxTransAmount = maxTransAmount;
        timelock[Functions.MAXTX] = 0;
        emit setMaxTrans(maxTransAmount);
    }

    function _setTotalBuyTax(uint256 totalBuyTax) external onlyOwner() notLocked(Functions.BUYTAX) {

        require(totalBuyTax <= _maxBuyTax, "Buy tax too high");

        _currentBuyTax = totalBuyTax;
        _totalBuyTax = totalBuyTax;
        timelock[Functions.BUYTAX] = 0;
        emit setTotalBuyTax(totalBuyTax);
    }

    function _setTotalSellTax(uint256 totalSellTax) external onlyOwner() notLocked(Functions.SELLTAX) {

        require(totalSellTax <= _maxSellTax, "Sell tax too high");

        _currentSellTax = totalSellTax;
        _totalSellTax = totalSellTax;
        timelock[Functions.SELLTAX] = 0;
        emit setTotalSellTax(totalSellTax);
    }

    function _setRefPer(uint256 refPer) external onlyOwner() notLocked(Functions.REF) {

        _refPer = refPer;
        timelock[Functions.REF] = 0;
        emit setRefPer(refPer);
    }

    function _setAutoLiqPer(uint256 autoLiqPer) external onlyOwner() notLocked(Functions.AUTOLIQPER) {

        _autoLiqPer = autoLiqPer;
        timelock[Functions.AUTOLIQPER] = 0;
        emit setAutoLiqPer(autoLiqPer);
    }

    function _setMinTokensForLiquidity(uint256 minTokensForLiquidity) external onlyOwner() notLocked(Functions.MINLIQ) {

        _minTokensForLiquidity = minTokensForLiquidity;
        timelock[Functions.MINLIQ] = 0;
        emit setMinTokensForLiquidity(minTokensForLiquidity);
    }

    function _setLockLiquiditiesEnabled(bool lockLiquiditiesEnabled) external onlyOwner() notLocked(Functions.LIQENABLED) {

        _lockLiquiditiesEnabled = lockLiquiditiesEnabled;
        timelock[Functions.LIQENABLED] = 0;
        emit setLockLiquiditiesEnabled(lockLiquiditiesEnabled);
    }
    
    function _setAutoTaxEnabled(bool AutoTaxEnabled) external onlyOwner() notLocked(Functions.AUTOTAXENABLED) {

        _AutoTaxEnabled = AutoTaxEnabled;
        timelock[Functions.AUTOTAXENABLED] = 0;
        emit setAutoTaxEnabled(AutoTaxEnabled);
    }

    function _doTokenomics() public lockLiquidities {
        
        uint256 amount = balanceOf(address(this));
        
        if(amount >= _minTokensForLiquidity && _lockLiquiditiesEnabled == true && amount > 0) {

            if(amount >= _maxTransAmount) {
                amount = _maxTransAmount;
            }

            uint256 liqAmount = _findPercent(amount, _autoLiqPer);
            uint256 marketingAmount = amount.sub(liqAmount);

            _doLiquidity(liqAmount, marketingAmount);
            _doMarketing();
        }
    }

    function _doLiquidity(uint256 liqTokensAmount, uint256 marketingTokensAmount) private {

        _liqAllTime += liqTokensAmount;

        uint256 bnbHalf = liqTokensAmount.div(2);
        uint256 tokenHalf = liqTokensAmount.sub(bnbHalf);

        uint256 bnbBalance = address(this).balance; //current bnb balance

        _swapTokensForEth(bnbHalf + marketingTokensAmount, address(this)); //swap liquidity and marketing to ETH in one TX to save gas

        uint256 bnbNewBalance = address(this).balance.sub(bnbBalance); //get amount swapped to bnb

        _addLiquidity(tokenHalf, bnbNewBalance); //add liquidity using the tokens and bnb, ETH dust will be sent back for marketing wallet
    }

    function _doMarketing() private {

        uint256 bnbBalance = address(this).balance; //current bnb balance

        Address.sendValue(_wMarketing, bnbBalance); //send bnb amount to governance

        _marketingAllTime += bnbBalance;
    }

    function _findPercent(uint256 value, uint256 basePercent) private pure returns (uint256)  {

        uint256 percent = value.mul(basePercent).div(10000);
        return percent;
    }
    
    function _swapTokensForEth(uint256 tokenAmount, address tokenContract) private {

        // generate the uniswap pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = tokenContract;
        path[1] = uniswapV2Router.WETH();

        _approve(tokenContract, address(uniswapV2Router), tokenAmount);

        // make the swap
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            tokenContract,
            block.timestamp
        );
    }

    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 _setRouterAddress(address newRouter) public onlyOwner() notLocked(Functions.SETROUT) {

        IUniswapV2Router02 _newPancakeRouter = IUniswapV2Router02(newRouter);
        uniswapV2Pair = IUniswapV2Factory(_newPancakeRouter.factory()).createPair(address(this), _newPancakeRouter.WETH());
        uniswapV2Router = _newPancakeRouter;

        timelock[Functions.SETROUT] = 0;
        emit setRouterAddressChanged(newRouter);
    }

    function _setWhitelistedAddresses(address[] memory whitelist) public onlyOwner {

        for (uint i = 0; i < whitelist.length; i++) {
            _whitelistedUsers[whitelist[i]] = true;
        }

        emit setWhitelistedUsers(whitelist.length);
    }

    function _renounceWhiteList() external onlyOwner {

        require(_whitelist_enabled == true, "Whitelist already renounced");

        _whitelist_enabled = false;
    }

    function _isWhitelisted(address user) public view returns (bool) {

        return _whitelistedUsers[user];
    }

    //unlock timelock
    function _unlockFunction(Functions _fn) public onlyOwner {
        timelock[_fn] = block.timestamp + _TIMELOCK;
    }

    //lock timelock
    function _lockFunction(Functions _fn) public onlyOwner {
        timelock[_fn] = 0;
    }

    event setRouterAddressChanged(address newRouter);
    event setAutoTaxEnabled(bool AutoTaxEnabled);
    event setLockLiquiditiesEnabled(bool lockLiquiditiesEnabled);
    event setMinTokensForLiquidity(uint256 minTokensForLiquidity);
    event setAutoLiqPer(uint256 autoLiqPer);
    event setRefPer(uint256 refPer);
    event setTotalSellTax(uint256 totalSellTax);
    event setTotalBuyTax(uint256 totalBuyTax);
    event setMaxTrans(uint256 maxTransAmount);
    event setMaxHold(uint256 maxHoldAmount);
    event setMarketingWallet(address wallet);
    event setWhitelistedUsers(uint256 amount);
}