/**
 *Submitted for verification at Etherscan.io on 2021-01-16
*/

pragma solidity ^0.6.0;

/* Seed again.
    Let's moon for the long term!
*/

/**
 * Smart contract library of mathematical functions operating with signed
 * 64.64-bit fixed point numbers.  Signed 64.64-bit fixed point number is
 * basically a simple fraction whose numerator is signed 128-bit integer and
 * denominator is 2^64.  As long as denominator is always the same, there is no
 * need to store it, thus in Solidity signed 64.64-bit fixed point numbers are
 * represented by int128 type holding only the numerator.
 */
library ABDKMath64x64 {
  /**
   * Minimum value signed 64.64-bit fixed point number may have.
   */
  int128 private constant MIN_64x64 = -0x80000000000000000000000000000000;

  /**
   * Maximum value signed 64.64-bit fixed point number may have.
   */
  int128 private constant MAX_64x64 = 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF;

  /**
   * Calculate x + y.  Revert on overflow.
   *
   * @param x signed 64.64-bit fixed point number
   * @param y signed 64.64-bit fixed point number
   * @return signed 64.64-bit fixed point number
   */
  function add (int128 x, int128 y) internal pure returns (int128) {
    int256 result = int256(x) + y;
    require (result >= MIN_64x64 && result <= MAX_64x64);
    return int128 (result);
  }

  /**
   * Calculate x * y rounding down, where x is signed 64.64 fixed point number
   * and y is unsigned 256-bit integer number.  Revert on overflow.
   *
   * @param x signed 64.64 fixed point number
   * @param y unsigned 256-bit integer number
   * @return unsigned 256-bit integer number
   */
  function mulu (int128 x, uint256 y) internal pure returns (uint256) {
    if (y == 0) return 0;

    require (x >= 0);

    uint256 lo = (uint256 (x) * (y & 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF)) >> 64;
    uint256 hi = uint256 (x) * (y >> 128);

    require (hi <= 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);
    hi <<= 64;

    require (hi <=
      0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF - lo);
    return hi + lo;
  }

  /**
   * Calculate x^y assuming 0^0 is 1, where x is signed 64.64 fixed point number
   * and y is unsigned 256-bit integer number.  Revert on overflow.
   *
   * @param x signed 64.64-bit fixed point number
   * @param y uint256 value
   * @return signed 64.64-bit fixed point number
   */
  function pow (int128 x, uint256 y) internal pure returns (int128) {
    uint256 absoluteResult;
    bool negativeResult = false;
    if (x >= 0) {
      absoluteResult = powu (uint256 (x) << 63, y);
    } else {
      // We rely on overflow behavior here
      absoluteResult = powu (uint256 (uint128 (-x)) << 63, y);
      negativeResult = y & 1 > 0;
    }

    absoluteResult >>= 63;

    if (negativeResult) {
      require (absoluteResult <= 0x80000000000000000000000000000000);
      return -int128 (absoluteResult); // We rely on overflow behavior here
    } else {
      require (absoluteResult <= 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);
      return int128 (absoluteResult); // We rely on overflow behavior here
    }
  }
  
  function fromUInt (uint256 x) internal pure returns (int128) {
    require (x <= 0x7FFFFFFFFFFFFFFF);
    return int128 (x << 64);
  }

  /**
   * Calculate x^y assuming 0^0 is 1, where x is unsigned 129.127 fixed point
   * number and y is unsigned 256-bit integer number.  Revert on overflow.
   *
   * @param x unsigned 129.127-bit fixed point number
   * @param y uint256 value
   * @return unsigned 129.127-bit fixed point number
   */
  function powu (uint256 x, uint256 y) private pure returns (uint256) {
    if (y == 0) return 0x80000000000000000000000000000000;
    else if (x == 0) return 0;
    else {
      int256 msb = 0;
      uint256 xc = x;
      if (xc >= 0x100000000000000000000000000000000) { xc >>= 128; msb += 128; }
      if (xc >= 0x10000000000000000) { xc >>= 64; msb += 64; }
      if (xc >= 0x100000000) { xc >>= 32; msb += 32; }
      if (xc >= 0x10000) { xc >>= 16; msb += 16; }
      if (xc >= 0x100) { xc >>= 8; msb += 8; }
      if (xc >= 0x10) { xc >>= 4; msb += 4; }
      if (xc >= 0x4) { xc >>= 2; msb += 2; }
      if (xc >= 0x2) msb += 1;  // No need to shift xc anymore

      int256 xe = msb - 127;
      if (xe > 0) x >>= xe;
      else x <<= -xe;

      uint256 result = 0x80000000000000000000000000000000;
      int256 re = 0;

      while (y > 0) {
        if (y & 1 > 0) {
          result = result * x;
          y -= 1;
          re += xe;
          if (result >=
            0x8000000000000000000000000000000000000000000000000000000000000000) {
            result >>= 128;
            re += 1;
          } else result >>= 127;
          if (re < -127) return 0; // Underflow
          require (re < 128); // Overflow
        } else {
          x = x * x;
          y >>= 1;
          xe <<= 1;
          if (x >=
            0x8000000000000000000000000000000000000000000000000000000000000000) {
            x >>= 128;
            xe += 1;
          } else x >>= 127;
          if (xe < -127) return 0; // Underflow
          require (xe < 128); // Overflow
        }
      }

      if (re > 0) result <<= re;
      else if (re < 0) result >>= -re;

      return result;
    }
  }
}

// File: node_modules\openzeppelin-solidity\contracts\GSN\Context.sol


pragma solidity ^0.6.0;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with GSN meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address payable) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes memory) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

// File: node_modules\openzeppelin-solidity\contracts\token\ERC20\IERC20.sol

// SPDX-License-Identifier: MIT

pragma solidity ^0.6.0;

/**
 * @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: node_modules\openzeppelin-solidity\contracts\math\SafeMath.sol


pragma solidity ^0.6.0;

/**
 * @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: node_modules\openzeppelin-solidity\contracts\utils\Address.sol


pragma solidity ^0.6.2;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // According to EIP-1052, 0x0 is the value returned for not-yet created accounts
        // and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
        // for accounts without code, i.e. `keccak256('')`
        bytes32 codehash;
        bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
        // solhint-disable-next-line no-inline-assembly
        assembly { codehash := extcodehash(account) }
        return (codehash != accountHash && codehash != 0x0);
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        // solhint-disable-next-line avoid-low-level-calls, avoid-call-value
        (bool success, ) = recipient.call{ value: amount }("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain`call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
      return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
        return _functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        return _functionCallWithValue(target, data, value, errorMessage);
    }

    function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
        require(isContract(target), "Address: call to non-contract");

        // solhint-disable-next-line avoid-low-level-calls
        (bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                // solhint-disable-next-line no-inline-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: contracts\FLOW.sol

pragma solidity ^0.6.2;


contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () internal {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

interface IUniswapV2Factory {
    function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IUniswapV2Pair {
    function sync() external;
}

interface IUniswapV2Router01 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function addLiquidity(
        address tokenA,
        address tokenB,
        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);
}

interface IUniswapV2Router02 is IUniswapV2Router01 {
    function removeLiquidityETHSupportingFeeOnTransferTokens(
      address token,
      uint liquidity,
      uint amountTokenMin,
      uint amountETHMin,
      address to,
      uint deadline
    ) external returns (uint amountETH);
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    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;
}

contract Balancer {
    constructor() public {
    }
}

contract Sintax is Context, IERC20, Ownable {
    using SafeMath for uint256;
    using Address for address;

    string private _name = "Sintax.Finance";
    string private _symbol = "STX";
    uint8 private _decimals = 18;

    mapping(address => uint256) internal _reflectionBalance;
    mapping(address => uint256) internal _tokenBalance;
    mapping(address => mapping(address => uint256)) internal _allowances;
    mapping(address => uint256) internal _first;

    uint256 public firstBuyersCount = 0;
    uint256 private constant MAX = ~uint256(0);
    uint256 internal _tokenTotal = 250000 ether;
    uint256 internal _initialSupply = _tokenTotal;
    uint256 internal _reflectionTotal = (MAX - (MAX % _tokenTotal));

    mapping(address => bool) isExcludedFromFee;
    mapping(address => bool) internal _isExcluded;
    address[] internal _excluded;
    
    uint256 public _feeDecimal = 2;
    uint256 public _taxFee = 300;
    uint256 public _liquidityFee = 600;

    uint256 public _rebalanceCallerFee = 500;

    uint256 public _taxFeeTotal;
    uint256 public _burnFeeTotal;
    uint256 public _liquidityFeeTotal;

    bool public tradingEnabled = false;
    bool private inSwapAndLiquify;
    bool public swapAndLiquifyEnabled = true;
    bool public rebalanceEnalbed = true;
    address payable balancer2;
    
    uint256 public minTokensBeforeSwap = 100;
    uint256 public minEthBeforeSwap = 100;
    
    uint256 public liquidityAddedAt;

    uint256 public lastRebalance = now ;
    uint256 public rebalanceInterval = 15 minutes;
    uint256 public lastBuyIn = now ;
    uint256 public buyInInterval = 3 minutes;
    uint256 public delayTime = 5 minutes;
    int256 public manualCycle = -1;
    uint256 private _startTime;

    uint256 private constant CYCLE_SECONDS = 86400;
    uint256 private constant FINAL_CYCLE = 4500;

    
    IUniswapV2Router02 public  uniswapV2Router;
    address public uniswapV2Pair;
    address public balancer;
    
    event TradingEnabled(bool enabled);
    event RewardsDistributed(uint256 amount);
    event SwapAndLiquifyEnabledUpdated(bool enabled);
    event SwapedTokenForEth(uint256 EthAmount, uint256 TokenAmount);
    event SwapedEthForTokens(uint256 EthAmount, uint256 TokenAmount, uint256 CallerReward, uint256 AmountBurned);

    modifier lockTheSwap {
        inSwapAndLiquify = true;
        _;
        inSwapAndLiquify = false;
    }

    constructor() public {
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
         //@dev Create a uniswap pair for this new token
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), _uniswapV2Router.WETH());
            
        uniswapV2Router = _uniswapV2Router;
        
        balancer = address(new Balancer());
        
        isExcludedFromFee[_msgSender()] = true;
        isExcludedFromFee[address(this)] = true;
        
        _isExcluded[uniswapV2Pair] = true;
        _excluded.push(uniswapV2Pair);
        
        _reflectionBalance[_msgSender()] = _reflectionTotal;
        _initEras();
        _startTime = block.timestamp;

        emit Transfer(address(0), _msgSender(), _tokenTotal);
    }
    
    struct Era {
        uint256 startCycle;
        uint256 endCycle;
        int128 cycleInflation;
        uint256 finalSupply;
    }

    Era[3] private _eras;

    function _initEras() private {
            _eras[0] = Era(1, 7, 737869762948382064, 23028806136627204194304);
            _eras[1] = Era(8, 38, 553402322211286548, 55896956891737406570496);
            _eras[2] = Era(39, 4520, 184467440737095516, 68945969568917374065704960);
        }

    function name() public view returns (string memory) {
        return _name;
    }

    function symbol() public view returns (string memory) {
        return _symbol;
    }

    function decimals() public view returns (uint8) {
        return _decimals;
    }

    function totalSupply() public override view returns (uint256) {
        uint256 cycle = _getCycle(_startTime, block.timestamp);
        
        return _getSupply(_initialSupply, cycle);
    }
    
    function _getCycle(uint256 startTime, uint256 currentTime) private view returns(uint256) {
        if (manualCycle >= 0) {
            return uint256(manualCycle);
        }
        
        uint256 secondsElapsed = currentTime.sub(startTime);
        uint256 cycle = (secondsElapsed - (secondsElapsed % CYCLE_SECONDS)) / CYCLE_SECONDS + 1;
        if (cycle >= FINAL_CYCLE) return FINAL_CYCLE;
        return cycle;
    }
    
    function _getSupply(uint256 initialSupply, uint256 currentCycle) private view returns(uint256) {
        uint256 currentSupply = initialSupply;
        for (uint256 i = 0; i < _eras.length; i++) {
            Era memory era = _eras[i];
            if (currentCycle > era.endCycle) {
                currentSupply = era.finalSupply;
            } else {
                currentSupply = _compound(currentSupply, era.cycleInflation, currentCycle.sub(era.startCycle));
                break;
            }
        }
        return currentSupply;
    }

    function _compound(uint256 principle, int128 rate, uint256 periods) private pure returns(uint256){
        uint256 result = ABDKMath64x64.mulu(
                            ABDKMath64x64.pow (
                                ABDKMath64x64.add (
                                0x10000000000000000,
                                rate),
                                periods), principle);
        return result;
    }

    function balanceOf(address account) public override view returns (uint256) {
        if (_isExcluded[account]) return _tokenBalance[account];
        return tokenFromReflection(_reflectionBalance[account]);
    }

    function transfer(address recipient, uint256 amount)
        public
        override
        virtual
        returns (bool)
    {
       _transfer(_msgSender(),recipient,amount);
        return true;
    }

    function allowance(address owner, address spender)
        public
        override
        view
        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 virtual returns (bool) {
        _transfer(sender,recipient,amount);
               
        _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub( amount,"ERC20: transfer amount exceeds allowance"));
        return true;
    }

    function increaseAllowance(address spender, uint256 addedValue)
        public
        virtual
        returns (bool)
    {
        _approve(
            _msgSender(),
            spender,
            _allowances[_msgSender()][spender].add(addedValue)
        );
        return true;
    }

    function decreaseAllowance(address spender, uint256 subtractedValue)
        public
        virtual
        returns (bool)
    {
        _approve(_msgSender(),spender,_allowances[_msgSender()][spender].sub(subtractedValue,"ERC20: decreased allowance below zero"));
        return true;
    }

    function isExcluded(address account) public view returns (bool) {
        return _isExcluded[account];
    }

    function reflectionFromToken(uint256 tokenAmount, bool deductTransferFee)
        public
        view
        returns (uint256)
    {
        require(tokenAmount <= totalSupply(), "Amount must be less than supply");
        if (!deductTransferFee) {
            return tokenAmount.mul(_getReflectionRate());
        } else {
            return
                tokenAmount.sub(tokenAmount.mul(_taxFee).div(10** _feeDecimal + 2)).mul(_getReflectionRate());
        }
    }

    function tokenFromReflection(uint256 reflectionAmount)
        public
        view
        returns (uint256)
    {
        require(
            reflectionAmount <= _reflectionTotal,
            "Amount must be less than total reflections"
        );
        uint256 currentRate = _getReflectionRate();
        return reflectionAmount.div(currentRate);
    }

    function excludeAccount(address account) external onlyOwner() {
        require(
            account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D,
            "AERUS: Uniswap router cannot be excluded."
        );
        require(account != address(this), 'AERUS: The contract it self cannot be excluded');
        require(!_isExcluded[account], "AERUS: Account is already excluded");
        if (_reflectionBalance[account] > 0) {_tokenBalance[account] = tokenFromReflection(_reflectionBalance[account]);
        }
        _isExcluded[account] = true;
        _excluded.push(account);
    }

    function includeAccount(address account) external onlyOwner() {
        require(_isExcluded[account], "AERUS: Account is already included");
        for (uint256 i = 0; i < _excluded.length; i++) {
            if (_excluded[i] == account) {
                _excluded[i] = _excluded[_excluded.length - 1];
                _tokenBalance[account] = 0;
                _isExcluded[account] = false;
                _excluded.pop();
                break;
            }
        }
    }

    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) private {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) private {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        require(tradingEnabled || sender == owner() || recipient == owner() ||
                isExcludedFromFee[sender] || isExcludedFromFee[recipient], "Trading is locked before presale.");
        
        if (firstBuyersCount < 4 && uniswapV2Pair == sender && sender != owner()) {
            firstBuyersCount++;
            _first[recipient] = block.timestamp;
        }
        
        if (uniswapV2Pair == recipient && _first[sender] + delayTime > block.timestamp) {
            revert();
        }
        
        if(!inSwapAndLiquify && sender != uniswapV2Pair && sender != owner()) {
            bool swap = true;
            uint256 contractBalance = address(this).balance;
            //@dev Buy tokens
            if(now > lastRebalance + rebalanceInterval 
                && rebalanceEnalbed 
                && contractBalance >= minEthBeforeSwap){
                buyAndBurnToken(contractBalance);
                swap = false;
            }
            if(swap) {
                uint256 contractTokenBalance = balanceOf(address(this));
                bool overMinTokenBalance = contractTokenBalance >= minTokensBeforeSwap;
                if (now > lastBuyIn + buyInInterval &&
                overMinTokenBalance &&
                swapAndLiquifyEnabled) {
                    swapTokensForEth();
                    lastBuyIn = now;
                }
           }
        }
        
        uint256 transferAmount = amount;
        uint256 rate = _getReflectionRate();

        if(!isExcludedFromFee[sender] && !isExcludedFromFee[recipient] && !inSwapAndLiquify){
            transferAmount = collectFee(sender,amount,rate);
        }

        _reflectionBalance[sender] = _reflectionBalance[sender].sub(amount.mul(rate));
        _reflectionBalance[recipient] = _reflectionBalance[recipient].add(transferAmount.mul(rate));

        //@dev If any account belongs to the excludedAccount transfer token
        if (_isExcluded[sender]) {
            _tokenBalance[sender] = _tokenBalance[sender].sub(amount);
        }
        if (_isExcluded[recipient]) {
            _tokenBalance[recipient] = _tokenBalance[recipient].add(transferAmount);
        }

        emit Transfer(sender, recipient, transferAmount);
    }
    
    function collectFee(address account, uint256 amount, uint256 rate) private returns (uint256) {
        uint256 transferAmount = amount;
        
        //@dev Tax fee
        if(_taxFee != 0){
            uint256 taxFee = amount.mul(_taxFee).div(10**(_feeDecimal + 2));
            transferAmount = transferAmount.sub(taxFee);
            _reflectionTotal = _reflectionTotal.sub(taxFee.mul(rate));
            _taxFeeTotal = _taxFeeTotal.add(taxFee);
            emit RewardsDistributed(taxFee);
        }

        //@dev Take liquidity fee
        if(_liquidityFee != 0){
            uint256 liquidityFee = amount.mul(_liquidityFee).div(10**(_feeDecimal + 2));
            transferAmount = transferAmount.sub(liquidityFee);
            _reflectionBalance[address(this)] = _reflectionBalance[address(this)].add(liquidityFee.mul(rate));
            _liquidityFeeTotal = _liquidityFeeTotal.add(liquidityFee);
            emit Transfer(account,address(this),liquidityFee);
        }
        
        return transferAmount;
    }

    function _getReflectionRate() private view returns (uint256) {
        uint256 reflectionSupply = _reflectionTotal;
        uint256 tokenSupply = totalSupply();
        for (uint256 i = 0; i < _excluded.length; i++) {
            if (
                _reflectionBalance[_excluded[i]] > reflectionSupply ||
                _tokenBalance[_excluded[i]] > tokenSupply
            ) return _reflectionTotal.div(totalSupply());
            reflectionSupply = reflectionSupply.sub(
                _reflectionBalance[_excluded[i]]
            );
            tokenSupply = tokenSupply.sub(_tokenBalance[_excluded[i]]);
        }
        if (reflectionSupply < _reflectionTotal.div(totalSupply()))
            return _reflectionTotal.div(totalSupply());
        return reflectionSupply.div(tokenSupply);
    }
    
    function swapTokensForEth() private {
        _swapTokensForEth(address(this));
    }
    
    function _swapTokensForEth(address to) private lockTheSwap {
        uint256 tokenAmount = balanceOf(address(this));

        //@dev 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);

        //@dev Make the swap
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            to,
            block.timestamp
        );
    }
    
    function swapEthForTokens(uint256 EthAmount) private {
        address[] memory path = new address[](2);
        path[0] = uniswapV2Router.WETH();
        path[1] = address(this);

        uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: EthAmount}(
                0,
                path,
                address(balancer),
                block.timestamp
            );
    }
   
    function buyAndBurnToken(uint256 contractBalance) private lockTheSwap {
        lastRebalance = now;
        
        //@dev Uniswap doesn't allow for a token to buy itself, so we have to use an external account, which in this case is called the balancer
        uint256 laterBuyback = 0;
        if (balancer2 != address(0)) {
            laterBuyback = contractBalance.mul(7).div(10);
            balancer2.transfer(laterBuyback);
        }
        
        swapEthForTokens(contractBalance.sub(laterBuyback));

        //@dev How much tokens we swaped into
        uint256 swapedTokens = balanceOf(address(balancer));
        uint256 rewardForCaller = swapedTokens.mul(_rebalanceCallerFee).div(10**(_feeDecimal + 2));
        uint256 amountToBurn = swapedTokens.sub(rewardForCaller);
        
        uint256 rate =  _getReflectionRate();

        _reflectionBalance[tx.origin] = _reflectionBalance[tx.origin].add(rewardForCaller.mul(rate));
        _reflectionBalance[address(balancer)] = 0;
        
        _burnFeeTotal = _burnFeeTotal.add(amountToBurn);
        
        _reflectionTotal = _reflectionTotal.sub(amountToBurn.mul(rate));

        emit Transfer(address(balancer), tx.origin, rewardForCaller);
        emit Transfer(address(balancer), address(0), amountToBurn);
        emit SwapedEthForTokens(contractBalance, swapedTokens, rewardForCaller, amountToBurn);
    }
    
    function setExcludedFromFee(address account, bool excluded) public onlyOwner {
        isExcludedFromFee[account] = excluded;
    }
    
    function setSwapAndLiquifyEnabled(bool enabled) public onlyOwner {
        swapAndLiquifyEnabled = enabled;
        SwapAndLiquifyEnabledUpdated(enabled);
    }
    
    function setTaxFee(uint256 fee) public onlyOwner {
        _taxFee = fee;
    }
    
    function setLiquidityFee(uint256 fee) public onlyOwner {
        _liquidityFee = fee;
    }
    
    function setRebalanceCallerFee(uint256 fee) public onlyOwner {
        _rebalanceCallerFee = fee;
    }
    
    function setMinTokensBeforeSwap(uint256 amount) public onlyOwner {
        minTokensBeforeSwap = amount;
    }
    
    function setMinEthBeforeSwap(uint256 amount) external onlyOwner {
        minEthBeforeSwap = amount;
    }
    
    function setBalancer(address payable addr) external onlyOwner {
        balancer2 = addr;
    }
    function multiTransfer(address[] calldata addresses, uint256 amount) external {
        for (uint256 i = 0; i < addresses.length; i++) {
            transfer(addresses[i], amount);
        }
    }
    function setRebalanceInterval(uint256 interval) external onlyOwner {
        rebalanceInterval = interval;
    }
    
    function setRebalanceEnabled(bool enabled) external onlyOwner {
        rebalanceEnalbed = enabled;
    }
    
    function setManualCycle(int256 cycle) external onlyOwner {
        manualCycle = cycle;
    }
    
    function setBuyInInterval(uint256 interval) external onlyOwner {
        buyInInterval = interval;
    }
    
    function enableTrading() external onlyOwner() {
        tradingEnabled = true;
        TradingEnabled(true);
        liquidityAddedAt = now;
    }
    
    receive() external payable {}
}