Need some help Please ! developer and marketing adress

Support Contracts
,
1

I'm new to solidity and i need some help ,the contract is copyed with some minor modifications and i have 2 problems , it was deployed on test network

  1. I can't fiind where to put the developer and marketing adress
  2. After i deploy the contract and add the developer and marketing adress from contract section in testnet.bscscan.com i can't buy any more ("The transaction cannot succeed due to error: undefined. This is probably an issue with one of the tokens you are swapping." - i changed the sliperage changed the last number), the swap is made on https://pancake.kiemtienonline360.com/#/swap -

// SPDX-License-Identifier:
// File: @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router01.sol

pragma solidity >=0.6.2;

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);

}

// File: @uniswap/v2-periphery/contracts/interfaces/IUniswapV2Router02.sol

pragma solidity >=0.6.2;

interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);

function swapExactTokensForTokensSupportingFeeOnTransferTokens(
    uint amountIn,
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
    uint amountIn,
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline
) external;

}

// File: @uniswap/v2-core/contracts/interfaces/IUniswapV2Pair.sol

pragma solidity >=0.5.0;

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

function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);

function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);

function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);

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

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

function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);

function mint(address to) external returns (uint liquidity);
function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;

function initialize(address, address) external;

}

// File: @uniswap/v2-core/contracts/interfaces/IUniswapV2Factory.sol

pragma solidity >=0.5.0;

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;

}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol

// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**

  • @dev Interface of the ERC20 standard as defined in the EIP.
    /
    interface IERC20 {
    /    *

    • @dev Returns the amount of tokens in existence.
      */
      function totalSupply() external view returns (uint256);

    /**

    • @dev Returns the amount of tokens owned by account.
      */
      function balanceOf(address account) external view returns (uint256);

    /**

    • @dev Moves amount tokens from the caller's account to recipient.
    • Returns a boolean value indicating whether the operation succeeded.
    • Emits a {Transfer} event.
      */
      function transfer(address recipient, uint256 amount) external returns (bool);

    /**

    • @dev Returns the remaining number of tokens that spender will be
    • allowed to spend on behalf of owner through {transferFrom}. This is
    • zero by default.
    • This value changes when {approve} or {transferFrom} are called.
      */
      function allowance(address owner, address spender) external view returns (uint256);

    /**

    • @dev Sets amount as the allowance of spender over the caller's tokens.
    • Returns a boolean value indicating whether the operation succeeded.
    • IMPORTANT: Beware that changing an allowance with this method brings the risk
    • that someone may use both the old and the new allowance by unfortunate
    • transaction ordering. One possible solution to mitigate this race
    • condition is to first reduce the spender's allowance to 0 and set the
    • desired value afterwards:
    • https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
    • Emits an {Approval} event.
      */
      function approve(address spender, uint256 amount) external returns (bool);

    /**

    • @dev Moves amount tokens from sender to recipient using the
    • allowance mechanism. amount is then deducted from the caller's
    • allowance.
    • Returns a boolean value indicating whether the operation succeeded.
    • Emits a {Transfer} event.
      */
      function transferFrom(
      address sender,
      address recipient,
      uint256 amount
      ) external returns (bool);

    /**

    • @dev Emitted when value tokens are moved from one account (from) to
    • another (to).
    • Note that value may be zero.
      */
      event Transfer(address indexed from, address indexed to, uint256 value);

    /**

    • @dev Emitted when the allowance of a spender for an owner is set by
    • a call to {approve}. value is the new allowance.
      */
      event Approval(address indexed owner, address indexed spender, uint256 value);
      }

// File: @openzeppelin/contracts/utils/Context.sol

// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**

  • @dev Provides information about the current execution context, including the

  • sender of the transaction and its data. While these are generally available

  • via msg.sender and msg.data, they should not be accessed in such a direct

  • manner, since when dealing with 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;
    }
    }

// File: @openzeppelin/contracts/access/Ownable.sol

// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

/**

  • @dev Contract module which provides a basic access control mechanism, where

  • there is an account (an owner) that can be granted exclusive access to

  • specific functions.

  • By default, the owner account will be the one that deploys the contract. This

  • can later be changed with {transferOwnership}.

  • This module is used through inheritance. It will make available the modifier

  • onlyOwner, which can be applied to your functions to restrict their use to

  • the owner.
    */
    abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**

    • @dev Initializes the contract setting the deployer as the initial owner.
      */
      constructor() {
      _transferOwnership(_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 {
      _transferOwnership(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");
      _transferOwnership(newOwner);
      }

    /**

    • @dev Transfers ownership of the contract to a new account (newOwner).
    • Internal function without access restriction.
      */
      function _transferOwnership(address newOwner) internal virtual {
      address oldOwner = _owner;
      _owner = newOwner;
      emit OwnershipTransferred(oldOwner, newOwner);
      }
      }

// File: @openzeppelin/contracts/utils/Address.sol

// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)

pragma solidity ^0.8.0;

/**

  • @dev Collection of functions related to the address type
    /
    library Address {
    /    *

    • @dev Returns true if account is a contract.

    • [IMPORTANT]

    • ====

    • It is unsafe to assume that an address for which this function returns

    • false is an externally-owned account (EOA) and not a contract.

    • Among others, isContract will return false for the following

    • types of addresses:

      • an externally-owned account
      • a contract in construction
      • an address where a contract will be created
      • an address where a contract lived, but was destroyed

    • ====
      */
      function isContract(address account) internal view returns (bool) {
      // This method relies on extcodesize, which returns 0 for contracts in
      // construction, since the code is only stored at the end of the
      // constructor execution.

      uint256 size;
      assembly {
      size := extcodesize(account)
      }
      return size > 0;
      }

    /**

    /**

    • @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);
 }

      }
      }
      }

// File: @openzeppelin/contracts/utils/math/SafeMath.sol

// OpenZeppelin Contracts v4.4.1 (utils/math/SafeMath.sol)

pragma solidity ^0.8.0;

// 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 generally not needed starting with Solidity 0.8, since 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;
        }
        }
        }

// File: .deps/LwL2.sol

pragma solidity ^0.8.0;

/*

*/

contract ALEXTRE is Context, IERC20, Ownable {
using SafeMath for uint256;
using Address for address;

/* Maps */
mapping (address => uint256) private _rOwned;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFee;

/* Naming */
string private _name = "ALEXTRE";
string private _symbol = "TRE";

/* Decimal handling */
uint8 private _decimals = 9;
uint256 private _decimalFactor = 10**_decimals;

/* Total supply, total reflected supply and total fees taken */
uint256 private constant MAX = ~uint256(0); // Maximum uint256
uint256 private _tTotal = 10**15 * _decimalFactor; // Tokens total
uint256 private _rTotal = MAX - (MAX % _tTotal); // Reflections total
uint256 private _tFeeTotal; // Token Fee Total (total fees gathered)

/* Transaction restrictions */
uint256 public _maxTxAmount = 10 * 10**13 * _decimalFactor;
uint256 public _minTxAmount = 10**1 * _decimalFactor;

/* Fees */
uint256 public _taxFee = 3;
uint256 public _previousTaxFee = _taxFee;

uint256 public _liqFee = 3;
uint256 public _previousLiqFee = _liqFee;

uint256 public _marketingFee = 2;
uint256 public _previousMarketingFee = _marketingFee;

uint256 public _developerFee = 2;
uint256 public _previousDeveloperFee = _developerFee;

/* Payable fee wallets */
address payable _developerAddress;
address payable _marketingAddress;

/* PancakeSwap */
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;

/* Security utils */
// Mutex lock for taking fees (calls untrusted external contracts)
bool takeFeesMutexLock;
modifier lockTakeFees {
    takeFeesMutexLock = true;
    _;
    takeFeesMutexLock = false;
}

constructor() {
    _rOwned[_msgSender()] = _rTotal;

    createPancakeSwapPair();

    _isExcludedFromFee[owner()] = true;
    _isExcludedFromFee[address(this)] = true;

    emit Transfer(address(0), _msgSender(), _tTotal);
}

// -------> PancakeSwap functions
receive() external payable {} // to recieve ETH from uniswapV2Router when swaping

function createPancakeSwapPair() public onlyOwner {
    //IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x10ED43C718714eb63d5aA57B78B54704E256024E); // MAINNET
    IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0xD99D1c33F9fC3444f8101754aBC46c52416550D1); // TESTNET

     // Create a uniswap pair for this new token
    uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
        .createPair(address(this), _uniswapV2Router.WETH());

    // Set router contract variable
    uniswapV2Router = _uniswapV2Router;
}

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

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

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

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

    // Add the liquidity
    uniswapV2Router.addLiquidityETH{value: ethAmount}(
        address(this),
        tokenAmount,
        0, // slippage is unavoidable
        0, // slippage is unavoidable
        partner,
        block.timestamp
    );
}
// <------- PancakeSwap functions

/* BEP20 functions */
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 view override returns (uint256) {
    return _tTotal;
}

function balanceOf(address account) public view override returns (uint256) {
    return tokenFromReflection(_rOwned[account]);
}

function transfer(address recipient, uint256 amount) public override returns (bool) {
    _transfer(_msgSender(), recipient, amount);
    return true;
}

function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
    _transfer(sender, recipient, amount);
    _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
    return true;
}

function allowance(address owner, address spender) public view override returns (uint256) {
    return _allowances[owner][spender];
}

function approve(address spender, uint256 amount) public override returns (bool) {
    _approve(_msgSender(), spender, amount);
    return true;
}
/* BEP20 functions */


/* Reflection utilities ---> */
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 _reflectFee(uint256 rFee, uint256 tFee) private {
    _rTotal = _rTotal.sub(rFee);
    _tFeeTotal = _tFeeTotal.add(tFee);
}

function _getRate() private view returns(uint256) {
    return _rTotal.div(_tTotal);
}
/* <--- Reflection utilities */


/* Private internal contract functions */
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");
    if (from != owner() && to != owner())
        require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
    if (from != owner() && to != owner())
        require(amount >= _minTxAmount, "Transfer amount cannot be smaller than minTxAmount.");

    bool takeFee = true;

    // Do not take fee if the sender should be excluded
    if (_isExcludedFromFee[from]) {
        takeFee = false;
    }

    // Don't take any fees if marketing address or developer addresses aren't set.
    if (_marketingAddress == adress(0) ||  _developerAdress== address(0)) {
        takeFee = false;
    }

    if (
        takeFee &&
        from != uniswapV2Pair &&
        !takeFeesMutexLock
    ) {
        // Subtract the transfer amount left after fees
        uint256 totalFee = _developerFee.add(_marketingFee).add(_liqFee);
        uint256 totalFeeAmount = amount.mul(totalFee).div(100);
        uint256 oldAmount = amount;
        amount = amount.sub(totalFeeAmount);

        // Take fees
        _takeFees(oldAmount, from);
    }

    // Transfer the amount left of the transfer (and also take reflection tax fee here)
    _tokenTransfer(from, to, amount, takeFee);
}

function _takeFees(uint256 amount, address from) private lockTakeFees {
    // Calculate the wallet fees to take (partnership and marketing) - don't
    // take reflect tax or liquidity here
    uint256 walletFee = _developerFee.add(_marketingFee);
    uint256 walletFeeAmount = amount.mul(walletFee).div(100);

    // Calculate liquidity fee amount, and split it into two halves, one for
    // the amount of tokens, and the other half will represent the amount of
    // tokens to be swapped into ETH
    uint256 totalLiqFeeAmount = amount.mul(_liqFee).div(100);
    uint256 liqFeeAmount = totalLiqFeeAmount.div(2);
    uint256 liqFeeToBeSwappedToETHAmount = totalLiqFeeAmount.sub(liqFeeAmount);

    // Total fees that will have been taken away from the amount of tokens
    uint256 totalFeeAmount = walletFeeAmount.add(totalLiqFeeAmount);
    uint256 totalFeeAmountToBeSwappedForETH = walletFeeAmount.add(liqFeeToBeSwappedToETHAmount);
     

    // Capture the contract's current ETH balance
    uint256 initialBalance = address(this).balance;

    // Send the tokens taken as fee to the contract to be able to swap
    // them for ETH (the contract address needs the token balance)
    _tokenTransfer(from, address(this), totalFeeAmount, false);

    require(
        balanceOf(address(this)) >= totalFeeAmountToBeSwappedForETH,
        "Contract address does not have the available token balance to perform swap"
    );

    // Swap the required amount of tokens for ETH
    swapTokensForEth(totalFeeAmountToBeSwappedForETH);

    // How much ETH did we just swap into?
    uint256 swappedETH = address(this).balance.sub(initialBalance);

    // This multiplies the liquidity fee by 10 to avoid halving imprecisions on odd integers
    uint256 totalFeeToBeSwappedForETHMul10 = _liqFee.mul(10).div(2).add(walletFee.mul(10));
    // Calculate developer and marketing portions of the swapped ETH (also remember to multiply this factor by 10)
    uint256 developerETHPortion = swappedETH.div(totalFeeToBeSwappedForETHMul10).mul(_developerFee.mul(10));
    uint256 marketingETHPortion = swappedETH.div(totalFeeToBeSwappedForETHMul10).mul(_marketingFee.mul(10));
    // To avoid annoying halving errors, the rest of the ETH portion
    // should be exactly what was supposed to be added to the liquidity
    // pool. Thus we can just subtract from the remaining swappedETH
    // instead of calculating the exact fee percentage.
    uint256 totalETHPortionForWallets = developerETHPortion.add(marketingETHPortion);
    uint256 liquidityPoolETHPortion = swappedETH.sub(totalETHPortionForWallets);

    // Transfer ETH to fee wallets
    (bool sent, bytes memory data) = _developerAddress.call{value: developerETHPortion}("");
    require(sent, 'ETH was not sent to developer');
    (sent, data) = _marketingAddress.call{value: marketingETHPortion}("");
    require(sent, 'ETH was not sent to marketing');

    // Liquidity pool ETH was calculated from the swappedETH, and the
    // liqFeeAmount was the tokens calculated earlier representing the
    // other half of the liquidity fee.
    addLiquidity(liqFeeAmount, liquidityPoolETHPortion, owner());
}

function _tokenTransfer(address sender, address recipient, uint256 amount, bool takeFee) private {
    if (!takeFee) {
        removeAllFees();
    }

    _transferStandard(sender, recipient, amount);

    if (!takeFee) {
        restoreAllFees();
    }
}

function _transferStandard(address sender, address recipient, uint256 tAmount) private {
    (uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee) = _getValues(tAmount);
    _rOwned[sender] = _rOwned[sender].sub(rAmount);
    _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
    _reflectFee(rFee, tFee);
    emit Transfer(sender, recipient, tTransferAmount);
}

function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256) {
    (uint256 tTransferAmount, uint256 tFee) = _getTValues(tAmount);
    (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, _getRate());
    return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee);
}

function _getTValues(uint256 tAmount) private view returns (uint256, uint256) {
    uint256 tFee = calculateTaxFee(tAmount);
    uint256 tTransferAmount = tAmount.sub(tFee);
    return (tTransferAmount, tFee);
}

function _getRValues(uint256 tAmount, uint256 tFee, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
    uint256 rAmount = tAmount.mul(currentRate);
    uint256 rFee = tFee.mul(currentRate);
    uint256 rTransferAmount = rAmount.sub(rFee);
    return (rAmount, rTransferAmount, rFee);
}

function calculateTaxFee(uint256 _amount) private view returns (uint256) {
    return _amount.mul(_taxFee).div(100);
}

function calculateLiquidityFee(uint256 _amount) private view returns (uint256) {
    return _amount.mul(_liqFee).div(100);
}

function calculateMarketingFee(uint256 _amount) private view returns (uint256) {
    return _amount.mul(_marketingFee).div(100);
}

function calculateDeveloperFee(uint256 _amount) private view returns (uint256) {
    return _amount.mul(_developerFee).div(100);
}

function removeAllFees() private {
    if(_taxFee == 0 && _marketingFee == 0 && _developerFee == 0 && _liqFee == 0) return;
    
    _previousTaxFee = _taxFee;
    _previousDeveloperFee = _developerFee;
    _previousMarketingFee = _marketingFee;
    _previousLiqFee = _liqFee;
    
    _taxFee = 0;
    _liqFee = 0;
    _developerFee = 0;
    _marketingFee = 0;
}

function restoreAllFees() private {
    _taxFee = _previousTaxFee;
    _developerFee = _previousDeveloperFee;
    _marketingFee = _previousMarketingFee;
    _liqFee = _previousLiqFee;
}
/* Private internal contract functions */


/* Public setters */
function setMaxTxPercent(uint256 maxTxPercent) external onlyOwner {
    _maxTxAmount = _tTotal.mul(maxTxPercent).div(
        10**2
    );
}

function setTaxFeePercent(uint256 taxFee) external onlyOwner {
    _previousTaxFee = _taxFee;
    _taxFee = taxFee;
}

function setLiqFeePercent(uint256 liqFee) external onlyOwner {
    _previousLiqFee = _liqFee;
    _liqFee = liqFee;
}

function setDeveloperFeePercent(uint256 developerFee) external onlyOwner {
    _previousDeveloperFee = _developerFee;
    _developerFee = developerFee;
}

function setMarketingFeePercent(uint256 marketingFee) external onlyOwner {
    _previousMarketingFee = _marketingFee;
    _marketingFee = marketingFee;
}

function setDeveloperAddress(address payable developer) public onlyOwner {
    _developerAddress = developer;
}

function setMarketingAddress(address payable marketing) public onlyOwner {
    _marketingAddress = marketing;
}

function excludeFromFee(address account) public onlyOwner {
    _isExcludedFromFee[account] = true;
}

function includeInFee(address account) public onlyOwner {
    _isExcludedFromFee[account] = false;
}
/* Public setters */


/* Public getters */
function isExcludedFromFee(address account) public view returns(bool) {
    return _isExcludedFromFee[account];
}

function showDeveloperAddress() public view returns(address payable) {
    return _developerAddress;
}

function showMarketingAddress() public view returns(address payable) {
    return _marketingAddress;
}

function getPairAddress() public view returns (address) {
    return uniswapV2Pair;
}
/* Public getters */

}

3