/**

The Hana: A Blossoming Token of Prosperity ✨

In the mystical land of the Rising Sun, there blooms "The Hana," a flower of great power. Devotees of $HANA tokens who have refrained from selling in the past 24 hours are graciously invited to join The Hana as it unveils its divine presence. With each opening of the celestial, the sacred flower reveals the chosen few who shall receive its heavenly blessings. At times, The Hana may bestow its full favor upon a single token holder, while on other occasions, it graces multiple fortunate souls with its abundant generosity. Hold its tokens with steadfast devotion and be granted the wealth you seek.

Website: https://hanatoken.net
The Hana: https://hanatoken.net/thechance

Socials:
Twitter: https://twitter.com/hanatokeneth
Telegram: https://t.me/hanatokeneth

*/

/*

// SPDX-License-Identifier: Unlicensed
pragma solidity 0.8.17;

/**
 * @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);
}

// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.

/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is no longer needed starting with Solidity 0.8. The compiler
 * now has built in overflow checking.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the substraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // 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 (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @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) {
        return a + b;
    }

    /**
     * @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 a - b;
    }

    /**
     * @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) {
        return a * b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting 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 a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(
        uint256 a,
        uint256 b,
        string memory errorMessage
    ) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting 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) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * 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) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

/**
 * @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 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) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

/**
 * @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() {
        _setOwner(_msgSender());
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual 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 {
        _setOwner(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");
        _setOwner(newOwner);
    }

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

/**
 * @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;
        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");

        (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");

        (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");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

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;
}

/**
 * @dev Interface for the Buy Back Reward contract that can be used to build
 * custom logic to elevate user rewards
 */
interface IConditional {
  /**
   * @dev Returns whether a wallet passes the test.
   */
  function passesTest(address wallet) external view returns (bool);
}

contract HANA is Context, IERC20, Ownable {
  using SafeMath for uint256;
  using Address for address;

  address payable public treasuryWallet =
    payable(0xe9b2506B7069235397495FF2d2D65fDa2F9eC2B9);
  address public constant deadAddress =
    0x000000000000000000000000000000000000dEaD;

  mapping(address => uint256) private _rOwned;
  mapping(address => uint256) private _tOwned;
  mapping(address => mapping(address => uint256)) private _allowances;
  mapping(address => bool) private _isSniper;
  address[] private _confirmedSnipers;

  uint256 public rewardsClaimTimeSeconds = 60 * 60 * 6; // 6 hours

  mapping(address => uint256) private _rewardsLastClaim;

  mapping(address => bool) private _isExcludedFee;
  mapping(address => bool) private _isExcludedReward;
  address[] private _excluded;

  string private constant _name = 'HANA';
  string private constant _symbol = 'HANA';
  uint8 private constant _decimals = 9;

  uint256 private constant MAX = ~uint256(0);
  uint256 private constant _tTotal = 1e9 * 10**_decimals;
  uint256 private _rTotal = (MAX - (MAX % _tTotal));
  uint256 private _tFeeTotal;

  uint256 public reflectionFee = 0;
  uint256 private _previousReflectFee = reflectionFee;

  uint256 public treasuryFee = 2;
  uint256 private _previousTreasuryFee = treasuryFee;

  uint256 public ethRewardsFee = 0;
  uint256 private _previousETHRewardsFee = ethRewardsFee;
  uint256 public ethRewardsBalance;

  uint256 public buybackFee = 3;
  uint256 private _previousBuybackFee = buybackFee;
  address public buybackReceiver = address(this);
  uint256 public buybackUpperLimit = 1000000000000000000; // 1.0 ETH
  uint256 public buybackEthBalance;

  uint256 buyBackDivisor = 1;

  bool public buyBackEnabled = true;
  event BuyBackEnabledUpdated(bool enabled);

  uint256 public feeSellMultiplier = 4;
  uint256 public feeRate = 10;
  uint256 public launchTime;

  uint256 public boostRewardsPercent = 0;

  address public boostRewardsContract;
  address public feeExclusionContract;

  IUniswapV2Router02 public uniswapV2Router;
  address public uniswapV2Pair;
  mapping(address => bool) private _isUniswapPair;

  // PancakeSwap: 0x10ED43C718714eb63d5aA57B78B54704E256024E
  // Uniswap V2: 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
  address private constant _uniswapRouterAddress =
    0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;

  bool private _inSwapAndLiquify;
  bool private _isSelling;
  bool private _tradingOpen = false;
  bool private _isMaxBuyActivated = true;

  uint256 public _maxTxAmount = _tTotal.mul(2).div(100); // 2.0%
  uint256 public _maxWalletSize = _tTotal.mul(2).div(100); // 2.0%
  uint256 public _maximumBuyAmount = _tTotal.mul(2).div(100); // 2.0%

  event MaxTxAmountUpdated(uint256 _maxTxAmount);
  event MaxWalletSizeUpdated(uint256 _maxWalletSize);
  event SendETHRewards(address to, uint256 amountETH);
  event SendTokenRewards(address to, address token, uint256 amount);
  event SwapETHForTokens(uint256 amountIn, address[] path);
  event SwapTokensForETH(uint256 amountIn, address[] path);
  event SwapAndLiquify(
    uint256 tokensSwappedForEth,
    uint256 ethAddedForLp,
    uint256 tokensAddedForLp
  );

  modifier lockTheSwap() {
    _inSwapAndLiquify = true;
    _;
    _inSwapAndLiquify = false;
  }

  constructor() {
    _rOwned[_msgSender()] = _rTotal;
    emit Transfer(address(0), _msgSender(), _tTotal);
  }

  function initContract() external onlyOwner {
    IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
      _uniswapRouterAddress
    );
    uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(
      address(this),
      _uniswapV2Router.WETH()
    );

    uniswapV2Router = _uniswapV2Router;

    _isExcludedFee[owner()] = true;
    _isExcludedFee[address(this)] = true;
    _isExcludedFee[treasuryWallet] = true;
  }

  function openTrading() external onlyOwner {
    treasuryFee = _previousTreasuryFee;
    ethRewardsFee = _previousETHRewardsFee;
    reflectionFee = _previousReflectFee;
    buybackFee = _previousBuybackFee;
    _tradingOpen = true;
    launchTime = block.timestamp;
  }

  function name() external pure returns (string memory) {
    return _name;
  }

  function symbol() external pure returns (string memory) {
    return _symbol;
  }

  function decimals() external pure returns (uint8) {
    return _decimals;
  }

  function totalSupply() external pure override returns (uint256) {
    return _tTotal;
  }

  function MaxTXAmount() external view returns (uint256) {
    return _maxTxAmount;
  }

  function MaxWalletSize() external view returns (uint256) {
    return _maxWalletSize;
  }

  function balanceOf(address account) public view override returns (uint256) {
    if (_isExcludedReward[account]) return _tOwned[account];
    return tokenFromReflection(_rOwned[account]);
  }

  function transfer(address recipient, uint256 amount)
    external
    override
    returns (bool)
  {
    _transfer(_msgSender(), recipient, amount);
    return true;
  }

  function allowance(address owner, address spender)
    external
    view
    override
    returns (uint256)
  {
    return _allowances[owner][spender];
  }

  function approve(address spender, uint256 amount)
    external
    override
    returns (bool)
  {
    _approve(_msgSender(), spender, amount);
    return true;
  }

  function transferFrom(
    address sender,
    address recipient,
    uint256 amount
  ) external 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)
    external
    virtual
    returns (bool)
  {
    _approve(
      _msgSender(),
      spender,
      _allowances[_msgSender()][spender].add(addedValue)
    );
    return true;
  }

  function decreaseAllowance(address spender, uint256 subtractedValue)
    external
    virtual
    returns (bool)
  {
    _approve(
      _msgSender(),
      spender,
      _allowances[_msgSender()][spender].sub(
        subtractedValue,
        'ERC20: decreased allowance below zero'
      )
    );
    return true;
  }

  function setMaxTxnAmount(uint256 maxTxAmountPercetange) external onlyOwner{
    require(maxTxAmountPercetange < 1000, "Maximum amount per transaction must be lower than 100%");
    require(maxTxAmountPercetange > 5, "Maximum amount per transaction must be higher than 0.5%");
    _maxTxAmount = _tTotal.mul(maxTxAmountPercetange).div(1000);
    emit MaxTxAmountUpdated(_maxTxAmount);
  }

  function setMaxWalletSize(uint256 maxWalletSizePercentage) external onlyOwner{
    require(maxWalletSizePercentage < 1000, "Maximum wallet size must be lower than 100%");
    require(maxWalletSizePercentage > 20, "Maximum wallet size must be higher than 2%");
    _maxWalletSize = _tTotal.mul(maxWalletSizePercentage).div(1000);
    emit MaxWalletSizeUpdated(_maxWalletSize);
  }

  function getLastETHRewardsClaim(address wallet)
    external
    view
    returns (uint256)
  {
    return _rewardsLastClaim[wallet];
  }

  function totalFees() external view returns (uint256) {
    return _tFeeTotal;
  }

  function deliver(uint256 tAmount) external {
    address sender = _msgSender();
    require(
      !_isExcludedReward[sender],
      'Excluded addresses cannot call this function'
    );
    (uint256 rAmount, , , , , ) = _getValues(sender, tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _rTotal = _rTotal.sub(rAmount);
    _tFeeTotal = _tFeeTotal.add(tAmount);
  }

  function reflectionFromToken(uint256 tAmount, bool deductTransferFee)
    external
    view
    returns (uint256)
  {
    require(tAmount <= _tTotal, 'Amount must be less than supply');
    if (!deductTransferFee) {
      (uint256 rAmount, , , , , ) = _getValues(address(0), tAmount);
      return rAmount;
    } else {
      (, uint256 rTransferAmount, , , , ) = _getValues(address(0), tAmount);
      return rTransferAmount;
    }
  }

  function tokenFromReflection(uint256 rAmount) public view returns (uint256) {
    require(rAmount <= _rTotal, 'Amount must be less than total reflections');
    uint256 currentRate = _getRate();
    return rAmount.div(currentRate);
  }

  function excludeFromReward(address account) external onlyOwner {
    require(!_isExcludedReward[account], 'Account is already excluded');
    if (_rOwned[account] > 0) {
      _tOwned[account] = tokenFromReflection(_rOwned[account]);
    }
    _isExcludedReward[account] = true;
    _excluded.push(account);
  }

  function includeInReward(address account) external onlyOwner {
    require(_isExcludedReward[account], 'Account is already included');
    for (uint256 i = 0; i < _excluded.length; i++) {
      if (_excluded[i] == account) {
        _excluded[i] = _excluded[_excluded.length - 1];
        _tOwned[account] = 0;
        _isExcludedReward[account] = false;
        _excluded.pop();
        break;
      }
    }
  }

  function _approve(
    address owner,
    address spender,
    uint256 amount
  ) private {
    require(owner != address(0), 'ERC20: approve from the zero address');
    require(spender != address(0), 'ERC20: approve to the zero address');

    _allowances[owner][spender] = amount;
    emit Approval(owner, spender, amount);
  }

  function _transfer(
    address from,
    address to,
    uint256 amount
  ) private {
    require(from != address(0), 'ERC20: transfer from the zero address');
    require(to != address(0), 'ERC20: transfer to the zero address');
    require(amount > 0, 'Transfer amount must be greater than zero');
    require(!_isSniper[to], 'Stop sniping!');
    require(!_isSniper[from], 'Stop sniping!');
    require(!_isSniper[_msgSender()], 'Stop sniping!');

    //check transaction amount only when selling
    if (
      (to == uniswapV2Pair || _isUniswapPair[to]) && 
      from != address(uniswapV2Router) &&
      !isExcludedFromFee(to) &&
      !isExcludedFromFee(from)
    ) {
        require(amount <= _maxTxAmount, "TOKEN: Max Transaction Limit");
    }

    if (
      to != uniswapV2Pair &&
      !_isUniswapPair[to] &&
      !isExcludedFromFee(to) && 
      !isExcludedFromFee(from)
      ) {
      require(balanceOf(to) + amount < _maxWalletSize, "TOKEN: Balance exceeds wallet size!");
      if (_isMaxBuyActivated) {
        if (block.timestamp <= launchTime + 30 minutes) {
          require(amount <= _maximumBuyAmount, "Amount too much");
        }
      }
    }

    // reset receiver's timer to prevent users buying and
    // immmediately transferring to buypass timer
    _rewardsLastClaim[to] = block.timestamp;

    bool excludedFromFee = false;

    // buy
    if (
      (from == uniswapV2Pair || _isUniswapPair[from]) &&
      to != address(uniswapV2Router)
    ) {
      // normal buy, check for snipers
      if (!isExcludedFromFee(to)) {
        require(_tradingOpen, 'Trading not yet enabled.');

        // antibot
        if (block.timestamp == launchTime) {
          _isSniper[to] = true;
          _confirmedSnipers.push(to);
        }
        _rewardsLastClaim[from] = block.timestamp;
      } else {
        // set excluded flag for takeFee below since buyer is excluded
        excludedFromFee = true;
      }
    }

    // sell
    if (
      !_inSwapAndLiquify &&
      _tradingOpen &&
      (to == uniswapV2Pair || _isUniswapPair[to])
    ) {
      uint256 _contractTokenBalance = balanceOf(address(this));
      if (_contractTokenBalance > 0) {
        if (
          _contractTokenBalance > balanceOf(uniswapV2Pair).mul(feeRate).div(100)
        ) {
          _contractTokenBalance = balanceOf(uniswapV2Pair).mul(feeRate).div(
            100
          );
        }
        _swapTokens(_contractTokenBalance);
      }

      if (buyBackEnabled && buybackEthBalance >= buybackUpperLimit) {
        uint256 buybackAmount = buybackEthBalance.div(buyBackDivisor);
        _buyBackTokens(buybackAmount);
        buybackEthBalance -= buybackAmount;
     }
      _rewardsLastClaim[from] = block.timestamp;
      _isSelling = true;
      excludedFromFee = isExcludedFromFee(from);
    }

    bool takeFee = false;

    // take fee only on swaps
    if (
      (from == uniswapV2Pair ||
        to == uniswapV2Pair ||
        _isUniswapPair[to] ||
        _isUniswapPair[from]) && !excludedFromFee
    ) {
      takeFee = true;
    }

    _tokenTransfer(from, to, amount, takeFee);
    _isSelling = false;
  }

  function _swapTokens(uint256 _contractTokenBalance) private lockTheSwap {
    uint256 ethBalanceBefore = address(this).balance;
    _swapTokensForEth(_contractTokenBalance);
    uint256 ethBalanceAfter = address(this).balance;
    uint256 ethBalanceUpdate = ethBalanceAfter.sub(ethBalanceBefore);
    uint256 _liquidityFeeTotal = _liquidityFeeAggregate(address(0));

    ethRewardsBalance += ethBalanceUpdate.mul(ethRewardsFee).div(
      _liquidityFeeTotal
    );

    // send ETH to treasury address
    uint256 treasuryETHBalance = ethBalanceUpdate.mul(treasuryFee).div(
      _liquidityFeeTotal
    );
    if (treasuryETHBalance > 0) {
      _sendETHToTreasury(treasuryETHBalance);
    }

    // buy back
    uint256 buybackETHShare = ethBalanceUpdate.mul(buybackFee).div(
      _liquidityFeeTotal
    );

    if(buybackETHShare > 0) {
        buybackEthBalance += buybackETHShare;
    }

  }

  function _sendETHToTreasury(uint256 amount) private {
    treasuryWallet.call{ value: amount }('');
  }

  function _buyBackTokens(uint256 amount) private lockTheSwap {
    // generate the uniswap pair path of token -> weth
    address[] memory path = new address[](2);
    path[0] = uniswapV2Router.WETH();
    path[1] = address(this);

    // make the swap
    uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{
      value: amount
    }(
      0, // accept any amount of tokens
      path,
      deadAddress,
      block.timestamp
    );

    emit SwapETHForTokens(amount, path);
  }

  function _swapTokensForEth(uint256 tokenAmount) private {
    // generate the uniswap pair path of token -> weth
    address[] memory path = new address[](2);
    path[0] = address(this);
    path[1] = uniswapV2Router.WETH();

    _approve(address(this), address(uniswapV2Router), tokenAmount);

    // make the swap
    uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
      tokenAmount,
      0, // accept any amount of ETH
      path,
      address(this), // the contract
      block.timestamp
    );

    emit SwapTokensForETH(tokenAmount, path);
  }

  function _tokenTransfer(
    address sender,
    address recipient,
    uint256 amount,
    bool takeFee
  ) private {
    if (!takeFee) _removeAllFee();

    if (_isExcludedReward[sender] && !_isExcludedReward[recipient]) {
      _transferFromExcluded(sender, recipient, amount);
    } else if (!_isExcludedReward[sender] && _isExcludedReward[recipient]) {
      _transferToExcluded(sender, recipient, amount);
    } else if (_isExcludedReward[sender] && _isExcludedReward[recipient]) {
      _transferBothExcluded(sender, recipient, amount);
    } else {
      _transferStandard(sender, recipient, amount);
    }

    if (!takeFee) _restoreAllFee();
  }

  function _transferStandard(
    address sender,
    address recipient,
    uint256 tAmount
  ) private {
    (
      uint256 rAmount,
      uint256 rTransferAmount,
      uint256 rFee,
      uint256 tTransferAmount,
      uint256 tFee,
      uint256 tLiquidity
    ) = _getValues(sender, tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
    _takeLiquidity(tLiquidity);
    _reflectFee(rFee, tFee);
    emit Transfer(sender, recipient, tTransferAmount);
  }

  function _transferToExcluded(
    address sender,
    address recipient,
    uint256 tAmount
  ) private {
    (
      uint256 rAmount,
      uint256 rTransferAmount,
      uint256 rFee,
      uint256 tTransferAmount,
      uint256 tFee,
      uint256 tLiquidity
    ) = _getValues(sender, tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);
    _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
    _takeLiquidity(tLiquidity);
    _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,
      uint256 tLiquidity
    ) = _getValues(sender, tAmount);
    _tOwned[sender] = _tOwned[sender].sub(tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
    _takeLiquidity(tLiquidity);
    _reflectFee(rFee, tFee);
    emit Transfer(sender, recipient, tTransferAmount);
  }

  function _transferBothExcluded(
    address sender,
    address recipient,
    uint256 tAmount
  ) private {
    (
      uint256 rAmount,
      uint256 rTransferAmount,
      uint256 rFee,
      uint256 tTransferAmount,
      uint256 tFee,
      uint256 tLiquidity
    ) = _getValues(sender, 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);
    _takeLiquidity(tLiquidity);
    _reflectFee(rFee, tFee);
    emit Transfer(sender, recipient, tTransferAmount);
  }

  function _reflectFee(uint256 rFee, uint256 tFee) private {
    _rTotal = _rTotal.sub(rFee);
    _tFeeTotal = _tFeeTotal.add(tFee);
  }

  function _getValues(address seller, uint256 tAmount)
    private
    view
    returns (
      uint256,
      uint256,
      uint256,
      uint256,
      uint256,
      uint256
    )
  {
    (uint256 tTransferAmount, uint256 tFee, uint256 tLiquidity) = _getTValues(
      seller,
      tAmount
    );
    (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(
      tAmount,
      tFee,
      tLiquidity,
      _getRate()
    );
    return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tLiquidity);
  }

  function _getTValues(address seller, uint256 tAmount)
    private
    view
    returns (
      uint256,
      uint256,
      uint256
    )
  {
    uint256 tFee = _calculateReflectFee(tAmount);
    uint256 tLiquidity = _calculateLiquidityFee(seller, tAmount);
    uint256 tTransferAmount = tAmount.sub(tFee).sub(tLiquidity);
    return (tTransferAmount, tFee, tLiquidity);
  }

  function _getRValues(
    uint256 tAmount,
    uint256 tFee,
    uint256 tLiquidity,
    uint256 currentRate
  )
    private
    pure
    returns (
      uint256,
      uint256,
      uint256
    )
  {
    uint256 rAmount = tAmount.mul(currentRate);
    uint256 rFee = tFee.mul(currentRate);
    uint256 rLiquidity = tLiquidity.mul(currentRate);
    uint256 rTransferAmount = rAmount.sub(rFee).sub(rLiquidity);
    return (rAmount, rTransferAmount, rFee);
  }

  function _getRate() private view returns (uint256) {
    (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
    return rSupply.div(tSupply);
  }

  function _getCurrentSupply() private view returns (uint256, uint256) {
    uint256 rSupply = _rTotal;
    uint256 tSupply = _tTotal;
    for (uint256 i = 0; i < _excluded.length; i++) {
      if (_rOwned[_excluded[i]] > rSupply || _tOwned[_excluded[i]] > tSupply)
        return (_rTotal, _tTotal);
      rSupply = rSupply.sub(_rOwned[_excluded[i]]);
      tSupply = tSupply.sub(_tOwned[_excluded[i]]);
    }
    if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
    return (rSupply, tSupply);
  }

  function _takeLiquidity(uint256 tLiquidity) private {
    uint256 currentRate = _getRate();
    uint256 rLiquidity = tLiquidity.mul(currentRate);
    _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity);
    if (_isExcludedReward[address(this)])
      _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity);
  }

  function _calculateReflectFee(uint256 _amount)
    private
    view
    returns (uint256)
  {
    return _amount.mul(reflectionFee).div(10**2);
  }

  function _liquidityFeeAggregate(address seller)
    private
    view
    returns (uint256)
  {
    uint256 feeMultiplier = _isSelling && !canClaimRewards(seller)
      ? feeSellMultiplier
      : 1;
    return (treasuryFee.add(ethRewardsFee).add(buybackFee)).mul(feeMultiplier);
  }

  function _calculateLiquidityFee(address seller, uint256 _amount)
    private
    view
    returns (uint256)
  {
    return _amount.mul(_liquidityFeeAggregate(seller)).div(10**2);
  }

  function _removeAllFee() private {
    if (
      reflectionFee == 0 &&
      treasuryFee == 0 &&
      ethRewardsFee == 0 &&
      buybackFee == 0
    ) return;

    _previousReflectFee = reflectionFee;
    _previousTreasuryFee = treasuryFee;
    _previousETHRewardsFee = ethRewardsFee;
    _previousBuybackFee = buybackFee;

    reflectionFee = 0;
    treasuryFee = 0;
    ethRewardsFee = 0;
    buybackFee = 0;
  }

  function _restoreAllFee() private {
    reflectionFee = _previousReflectFee;
    treasuryFee = _previousTreasuryFee;
    ethRewardsFee = _previousETHRewardsFee;
    buybackFee = _previousBuybackFee;
  }

  function getSellSlippage(address seller) external view returns (uint256) {
    uint256 feeAgg = treasuryFee.add(ethRewardsFee).add(buybackFee);
    return
      isExcludedFromFee(seller) ? 0 : !canClaimRewards(seller)
        ? feeAgg.mul(feeSellMultiplier)
        : feeAgg;
  }

  function isUniswapPair(address _pair) external view returns (bool) {
    if (_pair == uniswapV2Pair) return true;
    return _isUniswapPair[_pair];
  }

  function eligibleForRewardBooster(address wallet) public view returns (bool) {
    return
      boostRewardsContract != address(0) &&
      IConditional(boostRewardsContract).passesTest(wallet);
  }

  function isExcludedFromFee(address account) public view returns (bool) {
    return
      _isExcludedFee[account] ||
      (feeExclusionContract != address(0) &&
        IConditional(feeExclusionContract).passesTest(account));
  }

  function isExcludedFromReward(address account) external view returns (bool) {
    return _isExcludedReward[account];
  }

  function excludeFromFee(address account) external onlyOwner {
    _isExcludedFee[account] = true;
  }

  function includeInFee(address account) external onlyOwner {
    _isExcludedFee[account] = false;
  }

  function setRewardsClaimTimeSeconds(uint256 _seconds) external onlyOwner {
    require(_seconds >= 0 &&_seconds <= 60 * 60 * 24 * 7, 'claim time delay must be greater or equal to 0 seconds and less than or equal to 7 days');
    rewardsClaimTimeSeconds = _seconds;
  }
  
  // tax cannot be raised more than 20% on buy and sell
  function setNewFeesPercentages(uint256 _reflectionNewFee, uint256 _treasuryNewFee, uint256 _ethRewardsNewFee, uint256 _buybackRewardsNewFee) external onlyOwner {
    require(_reflectionNewFee + _treasuryNewFee + _ethRewardsNewFee + _buybackRewardsNewFee <= 10, 'Tax cannot be higher than 10%');
    reflectionFee = _reflectionNewFee;
    treasuryFee = _treasuryNewFee;
    ethRewardsFee = _ethRewardsNewFee;
    buybackFee = _buybackRewardsNewFee;
  }

  function setFeeSellMultiplier(uint256 multiplier) external onlyOwner {
    require(multiplier <= 5, 'must be less than or equal to 5');
    feeSellMultiplier = multiplier;
  }

  function setTreasuryAddress(address _treasuryWallet) external onlyOwner {
    treasuryWallet = payable(_treasuryWallet);
    _isExcludedFee[treasuryWallet] = true;
  }

  function setIsMaxBuyActivated(bool _value) public onlyOwner {
    _isMaxBuyActivated = _value;
  }

  function setBuybackReceiver(address _receiver) external onlyOwner {
    buybackReceiver = _receiver;
  }

  function addUniswapPair(address _pair) external onlyOwner {
    _isUniswapPair[_pair] = true;
  }

  function removeUniswapPair(address _pair) external onlyOwner {
    _isUniswapPair[_pair] = false;
  }

  function setBoostRewardsPercent(uint256 perc) external onlyOwner {
    boostRewardsPercent = perc;
  }

  function setBoostRewardsContract(address _contract) external onlyOwner {
    if (_contract != address(0)) {
      IConditional _contCheck = IConditional(_contract);
      // allow setting to zero address to effectively turn off check logic
      require(
        _contCheck.passesTest(address(0)) == true ||
          _contCheck.passesTest(address(0)) == false,
        'contract does not implement interface'
      );
    }
    boostRewardsContract = _contract;
  }

  function setFeeExclusionContract(address _contract) external onlyOwner {
    if (_contract != address(0)) {
      IConditional _contCheck = IConditional(_contract);
      // allow setting to zero address to effectively turn off check logic
      require(
        _contCheck.passesTest(address(0)) == true ||
          _contCheck.passesTest(address(0)) == false,
        'contract does not implement interface'
      );
    }
    feeExclusionContract = _contract;
  }

  function isRemovedSniper(address account) external view returns (bool) {
    return _isSniper[account];
  }

  function removeSniper(address account) external onlyOwner {
    require(account != _uniswapRouterAddress, 'We can not blacklist Uniswap');
    require(!_isSniper[account], 'Account is already blacklisted');
    _isSniper[account] = true;
    _confirmedSnipers.push(account);
  }

  function amnestySniper(address account) external onlyOwner {
    require(_isSniper[account], 'Account is not blacklisted');
    for (uint256 i = 0; i < _confirmedSnipers.length; i++) {
      if (_confirmedSnipers[i] == account) {
        _confirmedSnipers[i] = _confirmedSnipers[_confirmedSnipers.length - 1];
        _isSniper[account] = false;
        _confirmedSnipers.pop();
        break;
      }
    }
  }

  function calculateETHRewards(address wallet) public view returns (uint256) {
    uint256 baseRewards = ethRewardsBalance.mul(balanceOf(wallet)).div(
      _tTotal.sub(balanceOf(deadAddress)) // circulating supply
    );
    uint256 rewardsWithBooster = eligibleForRewardBooster(wallet)
      ? baseRewards.add(baseRewards.mul(boostRewardsPercent).div(10**2))
      : baseRewards;
    return
      rewardsWithBooster > ethRewardsBalance ? baseRewards : rewardsWithBooster;
  }

  function calculateTokenRewards(address wallet, address tokenAddress)
    public
    view
    returns (uint256)
  {
    IERC20 token = IERC20(tokenAddress);
    uint256 contractTokenBalance = token.balanceOf(address(this));
    uint256 baseRewards = contractTokenBalance.mul(balanceOf(wallet)).div(
      _tTotal.sub(balanceOf(deadAddress)) // circulating supply
    );
    uint256 rewardsWithBooster = eligibleForRewardBooster(wallet)
      ? baseRewards.add(baseRewards.mul(boostRewardsPercent).div(10**2))
      : baseRewards;
    return
      rewardsWithBooster > contractTokenBalance
        ? baseRewards
        : rewardsWithBooster;
  }

  function claimETHRewards() external {
    require(
      balanceOf(_msgSender()) > 0,
      'You must have a balance to claim ETH rewards'
    );
    require(
      canClaimRewards(_msgSender()),
      'Must wait claim period before claiming rewards'
    );
    _rewardsLastClaim[_msgSender()] = block.timestamp;

    uint256 rewardsSent = calculateETHRewards(_msgSender());
    ethRewardsBalance -= rewardsSent;
    _msgSender().call{ value: rewardsSent }('');
    emit SendETHRewards(_msgSender(), rewardsSent);
  }

  function canClaimRewards(address user) public view returns (bool) {
    if (_rewardsLastClaim[user] == 0) {
      return
        block.timestamp > launchTime.add(rewardsClaimTimeSeconds);
    }
    else {
      return
        block.timestamp > _rewardsLastClaim[user].add(rewardsClaimTimeSeconds);
    }
  }

  function claimTokenRewards(address token) external {
    require(
      balanceOf(_msgSender()) > 0,
      'You must have a balance to claim rewards'
    );
    require(
      IERC20(token).balanceOf(address(this)) > 0,
      'We must have a token balance to claim rewards'
    );
    require(
      canClaimRewards(_msgSender()),
      'Must wait claim period before claiming rewards'
    );
    _rewardsLastClaim[_msgSender()] = block.timestamp;

    uint256 rewardsSent = calculateTokenRewards(_msgSender(), token);
    IERC20(token).transfer(_msgSender(), rewardsSent);
    emit SendTokenRewards(_msgSender(), token, rewardsSent);
  }

  function setFeeRate(uint256 _rate) external onlyOwner {
    feeRate = _rate;
  }

  function manualswap(uint256 amount) external onlyOwner {
    require(amount <= balanceOf(address(this)) && amount > 0, "Wrong amount");
    _swapTokens(amount);
  }

  function emergencyWithdraw() external onlyOwner {
    payable(owner()).transfer(address(this).balance);
  }

  function setBuyBackEnabled(bool _enabled) public onlyOwner {
        buyBackEnabled = _enabled;
        emit BuyBackEnabledUpdated(_enabled);
    }

    function updateBuybackUpperLimit(uint256 _amount) public onlyOwner {
      buybackUpperLimit = _amount;
    }

    function setBuyBackDivisor(uint256 _newValue) external onlyOwner() {
        require(_newValue > 0, "cannot be set as zero");
        buyBackDivisor = _newValue;
    }

  // to recieve ETH from uniswapV2Router when swaping
  receive() external payable {}
}