flatten.txt

// Sources flattened with buidler v1.4.8 https://buidler.dev

// File contracts/GSN/Context.sol

pragma solidity >=0.4.0;

/*
 * @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 {
    // Empty internal constructor, to prevent people from mistakenly deploying
    // an instance of this contract, which should be used via inheritance.
    constructor() {}

    function _msgSender() internal view returns (address payable) {
        return payable(msg.sender);
    }

    function _msgData() internal view returns (bytes memory) {
        this;
        // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}


// File contracts/access/Manageable.sol

pragma solidity >=0.4.0;

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an manager) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the manager account will be the one that deploys the contract. This
 * can later be changed with {transferManagement}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyManager`, which can be applied to your functions to restrict their use to
 * the manager.
 */
abstract contract Manageable is Context {
    address private _manager;

    event ManagementTransferred(address indexed previousManager, address indexed newManager);

    /**
     * @dev Initializes the contract setting the deployer as the initial manager.
     */
    constructor() {
        address msgSender = _msgSender();
        _manager = msgSender;
        emit ManagementTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current manager.
     */
    function manager() public view returns (address) {
        return _manager;
    }

    /**
     * @dev Throws if called by any account other than the manager.
     */
    modifier onlyManager() {
        require(_manager == _msgSender(), 'Manageable: caller is not the manager');
        _;
    }

    /**
     * @dev Leaves the contract without manager. It will not be possible to call
     * `onlyManager` functions anymore. Can only be called by the current manager.
     *
     * NOTE: Renouncing management will leave the contract without an manager,
     * thereby removing any functionality that is only available to the manager.
     */
    function renounceManagement() public onlyManager {
        emit ManagementTransferred(_manager, address(0));
        _manager = address(0);
    }

    /**
     * @dev Transfers management of the contract to a new account (`newManager`).
     * Can only be called by the current manager.
     */
    function transferManagement(address newManager) public onlyManager {
        _transferManagement(newManager);
    }

    /**
     * @dev Transfers management of the contract to a new account (`newManager`).
     */
    function _transferManagement(address newManager) internal {
        require(newManager != address(0), 'Manageable: new manager is the zero address');
        emit ManagementTransferred(_manager, newManager);
        _manager = newManager;
    }
}


// File contracts/access/Ownable.sol

pragma solidity >=0.4.0;

/**
 * @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() {
        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 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 onlyOwner {
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     */
    function _transferOwnership(address newOwner) internal {
        require(newOwner != address(0), 'Ownable: new owner is the zero address');
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}


// File contracts/token/BEP20/IBEP20.sol

pragma solidity >=0.4.0;

interface IBEP20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the token decimals.
     */
    function decimals() external view returns (uint8);

    /**
     * @dev Returns the token symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the token name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the bep token owner.
     */
    function getOwner() external view returns (address);

    /**
     * @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 contracts/math/SafeMath.sol

pragma solidity >=0.4.0;

/**
 * @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;
    }

    function min(uint256 x, uint256 y) internal pure returns (uint256 z) {
        z = x < y ? x : y;
    }

    // babylonian method (https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method)
    function sqrt(uint256 y) internal pure returns (uint256 z) {
        if (y > 3) {
            z = y;
            uint256 x = y / 2 + 1;
            while (x < z) {
                z = x;
                x = (y / x + x) / 2;
            }
        } else if (y != 0) {
            z = 1;
        }
    }
}


// File contracts/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) {
        // 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/token/BEP20/BEP20.sol

// SPDX-License-Identifier: MIT

pragma solidity >=0.4.0;




/**
 * @dev Implementation of the {IBEP20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {BEP20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-BEP20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of BEP20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IBEP20-approve}.
 */
contract BEP20 is Context, IBEP20, Ownable {
    using SafeMath for uint256;
    using Address for address;

    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;
    uint8 private _decimals;

    /**
     * @dev Sets the values for {name} and {symbol}, initializes {decimals} with
     * a default value of 18.
     *
     * To select a different value for {decimals}, use {_setupDecimals}.
     *
     * All three of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_, uint8 decimals) {
        _name = name_;
        _symbol = symbol_;
        _decimals = decimals;
    }

    /**
     * @dev Returns the bep token owner.
     */
    function getOwner() external override view returns (address) {
        return owner();
    }

    /**
     * @dev Returns the token name.
     */
    function name() public override view returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the token decimals.
     */
    function decimals() public override view returns (uint8) {
        return _decimals;
    }

    /**
     * @dev Returns the token symbol.
     */
    function symbol() public override view returns (string memory) {
        return _symbol;
    }

    /**
     * @dev See {BEP20-totalSupply}.
     */
    function totalSupply() public override view returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {BEP20-balanceOf}.
     */
    function balanceOf(address account) public override view returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {BEP20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {BEP20-allowance}.
     */
    function allowance(address owner, address spender) public override view returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {BEP20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {BEP20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {BEP20};
     *
     * Requirements:
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for `sender`'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(
            sender,
            _msgSender(),
            _allowances[sender][_msgSender()].sub(amount, 'BEP20: transfer amount exceeds allowance')
        );
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {BEP20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {BEP20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public returns (bool) {
        _approve(
            _msgSender(),
            spender,
            _allowances[_msgSender()][spender].sub(subtractedValue, 'BEP20: decreased allowance below zero')
        );
        return true;
    }

    /**
     * @dev Creates `amount` tokens and assigns them to `msg.sender`, increasing
     * the total supply.
     *
     * Requirements
     *
     * - `msg.sender` must be the token owner
     */
    function mint(uint256 amount) public onlyOwner returns (bool) {
        _mint(_msgSender(), amount);
        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal {
        require(sender != address(0), 'BEP20: transfer from the zero address');
        require(recipient != address(0), 'BEP20: transfer to the zero address');

        _balances[sender] = _balances[sender].sub(amount, 'BEP20: transfer amount exceeds balance');
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements
     *
     * - `to` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal {
        require(account != address(0), 'BEP20: mint to the zero address');

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal {
        require(account != address(0), 'BEP20: burn from the zero address');

        _balances[account] = _balances[account].sub(amount, 'BEP20: burn amount exceeds balance');
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner`s tokens.
     *
     * This is internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal {
        require(owner != address(0), 'BEP20: approve from the zero address');
        require(spender != address(0), 'BEP20: approve to the zero address');

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`.`amount` is then deducted
     * from the caller's allowance.
     *
     * See {_burn} and {_approve}.
     */
    function _burnFrom(address account, uint256 amount) internal {
        _burn(account, amount);
        _approve(
            account,
            _msgSender(),
            _allowances[account][_msgSender()].sub(amount, 'BEP20: burn amount exceeds allowance')
        );
    }
}


// File contracts/libs/MockBEP20.sol

pragma solidity 0.8.0;

contract MockBEP20 is BEP20 {
    constructor(
        string memory name,
        string memory symbol,
        uint256 supply
    ) public BEP20(name, symbol, 18) {
        _mint(msg.sender, supply);

    }
}


// File contracts/token/BEP20/SafeBEP20.sol

pragma solidity ^0.8.0;



/**
 * @title SafeBEP20
 * @dev Wrappers around BEP20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeBEP20 for IBEP20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeBEP20 {
    using SafeMath for uint256;
    using Address for address;

    function safeTransfer(
        IBEP20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IBEP20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IBEP20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IBEP20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        // solhint-disable-next-line max-line-length
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            'SafeBEP20: approve from non-zero to non-zero allowance'
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IBEP20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender).add(value);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IBEP20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender).sub(
            value,
            'SafeBEP20: decreased allowance below zero'
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IBEP20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address.functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, 'SafeBEP20: low-level call failed');
        if (returndata.length > 0) {
            // Return data is optional
            // solhint-disable-next-line max-line-length
            require(abi.decode(returndata, (bool)), 'SafeBEP20: BEP20 operation did not succeed');
        }
    }
}


// File contracts/WAGToken.sol

pragma solidity 0.8.0;


// WAGToken with Governance.
contract WAGToken is BEP20('WagyuSwap Token', 'WAG', 18) {
    using SafeMath for uint256;
    /// @notice Creates `_amount` token to `_to`. Must only be called by the owner (WAGFarm).
    
    function burn(uint256 _amount) public {
        _burn(msg.sender, _amount);
    }
    
    function mint(address _to, uint256 _amount) public onlyOwner {
        _mint(_to, _amount);
        _moveDelegates(address(0), _delegates[_to], _amount);
    }

    // Copied and modified from YAM code:
    // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernanceStorage.sol
    // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernance.sol
    // Which is copied and modified from COMPOUND:
    // https://github.com/compound-finance/compound-protocol/blob/master/contracts/Governance/Comp.sol

    mapping (address => address) internal _delegates;

    /// @notice A checkpoint for marking number of votes from a given block
    struct Checkpoint {
        uint32 fromBlock;
        uint256 votes;
    }

    /// @notice A record of votes checkpoints for each account, by index
    mapping (address => mapping (uint32 => Checkpoint)) public checkpoints;

    /// @notice The number of checkpoints for each account
    mapping (address => uint32) public numCheckpoints;

    /// @notice The EIP-712 typehash for the contract's domain
    bytes32 public constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)");

    /// @notice The EIP-712 typehash for the delegation struct used by the contract
    bytes32 public constant DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)");

    /// @notice A record of states for signing / validating signatures
    mapping (address => uint) public nonces;

      /// @notice An event thats emitted when an account changes its delegate
    event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);

    /// @notice An event thats emitted when a delegate account's vote balance changes
    event DelegateVotesChanged(address indexed delegate, uint previousBalance, uint newBalance);

    /**
     * @notice Delegate votes from `msg.sender` to `delegatee`
     * @param delegator The address to get delegatee for
     */
    function delegates(address delegator)
        external
        view
        returns (address)
    {
        return _delegates[delegator];
    }

   /**
    * @notice Delegate votes from `msg.sender` to `delegatee`
    * @param delegatee The address to delegate votes to
    */
    function delegate(address delegatee) external {
        return _delegate(msg.sender, delegatee);
    }

    /**
     * @notice Delegates votes from signatory to `delegatee`
     * @param delegatee The address to delegate votes to
     * @param nonce The contract state required to match the signature
     * @param expiry The time at which to expire the signature
     * @param v The recovery byte of the signature
     * @param r Half of the ECDSA signature pair
     * @param s Half of the ECDSA signature pair
     */
    function delegateBySig(
        address delegatee,
        uint nonce,
        uint expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    )
        external
    {
        bytes32 domainSeparator = keccak256(
            abi.encode(
                DOMAIN_TYPEHASH,
                keccak256(bytes(name())),
                getChainId(),
                address(this)
            )
        );

        bytes32 structHash = keccak256(
            abi.encode(
                DELEGATION_TYPEHASH,
                delegatee,
                nonce,
                expiry
            )
        );

        bytes32 digest = keccak256(
            abi.encodePacked(
                "\x19\x01",
                domainSeparator,
                structHash
            )
        );

        address signatory = ecrecover(digest, v, r, s);
        require(signatory != address(0), "CAKE::delegateBySig: invalid signature");
        require(nonce == nonces[signatory]++, "CAKE::delegateBySig: invalid nonce");
        require(block.timestamp <= expiry, "CAKE::delegateBySig: signature expired");
        return _delegate(signatory, delegatee);
    }

    /**
     * @notice Gets the current votes balance for `account`
     * @param account The address to get votes balance
     * @return The number of current votes for `account`
     */
    function getCurrentVotes(address account)
        external
        view
        returns (uint256)
    {
        uint32 nCheckpoints = numCheckpoints[account];
        return nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0;
    }

    /**
     * @notice Determine the prior number of votes for an account as of a block number
     * @dev Block number must be a finalized block or else this function will revert to prevent misinformation.
     * @param account The address of the account to check
     * @param blockNumber The block number to get the vote balance at
     * @return The number of votes the account had as of the given block
     */
    function getPriorVotes(address account, uint blockNumber)
        external
        view
        returns (uint256)
    {
        require(blockNumber < block.number, "CAKE::getPriorVotes: not yet determined");

        uint32 nCheckpoints = numCheckpoints[account];
        if (nCheckpoints == 0) {
            return 0;
        }

        // First check most recent balance
        if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) {
            return checkpoints[account][nCheckpoints - 1].votes;
        }

        // Next check implicit zero balance
        if (checkpoints[account][0].fromBlock > blockNumber) {
            return 0;
        }

        uint32 lower = 0;
        uint32 upper = nCheckpoints - 1;
        while (upper > lower) {
            uint32 center = upper - (upper - lower) / 2; // ceil, avoiding overflow
            Checkpoint memory cp = checkpoints[account][center];
            if (cp.fromBlock == blockNumber) {
                return cp.votes;
            } else if (cp.fromBlock < blockNumber) {
                lower = center;
            } else {
                upper = center - 1;
            }
        }
        return checkpoints[account][lower].votes;
    }

    function _delegate(address delegator, address delegatee)
        internal
    {
        address currentDelegate = _delegates[delegator];
        uint256 delegatorBalance = balanceOf(delegator); // balance of underlying CAKEs (not scaled);
        _delegates[delegator] = delegatee;

        emit DelegateChanged(delegator, currentDelegate, delegatee);

        _moveDelegates(currentDelegate, delegatee, delegatorBalance);
    }

    function _moveDelegates(address srcRep, address dstRep, uint256 amount) internal {
        if (srcRep != dstRep && amount > 0) {
            if (srcRep != address(0)) {
                // decrease old representative
                uint32 srcRepNum = numCheckpoints[srcRep];
                uint256 srcRepOld = srcRepNum > 0 ? checkpoints[srcRep][srcRepNum - 1].votes : 0;
                uint256 srcRepNew = srcRepOld.sub(amount);
                _writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew);
            }

            if (dstRep != address(0)) {
                // increase new representative
                uint32 dstRepNum = numCheckpoints[dstRep];
                uint256 dstRepOld = dstRepNum > 0 ? checkpoints[dstRep][dstRepNum - 1].votes : 0;
                uint256 dstRepNew = dstRepOld.add(amount);
                _writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew);
            }
        }
    }

    function _writeCheckpoint(
        address delegatee,
        uint32 nCheckpoints,
        uint256 oldVotes,
        uint256 newVotes
    )
        internal
    {
        uint32 blockNumber = safe32(block.number, "CAKE::_writeCheckpoint: block number exceeds 32 bits");

        if (nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber) {
            checkpoints[delegatee][nCheckpoints - 1].votes = newVotes;
        } else {
            checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber, newVotes);
            numCheckpoints[delegatee] = nCheckpoints + 1;
        }

        emit DelegateVotesChanged(delegatee, oldVotes, newVotes);
    }

    function safe32(uint n, string memory errorMessage) internal pure returns (uint32) {
        require(n < 2**32, errorMessage);
        return uint32(n);
    }

    function getChainId() internal view returns (uint) {
        uint256 chainId;
        assembly { chainId := chainid() }
        return chainId;
    }
}


// File contracts/WAGStake.sol

pragma solidity 0.8.0;


// SyrupBar with Governance.
contract WAGStake is BEP20('WAGStake Token', 'WAGStake', 18) {
    using SafeMath for uint256;
    
    /// @notice Creates `_amount` token to `_to`. Must only be called by the owner (WAGFarm).
    function mint(address _to, uint256 _amount) public onlyOwner {
        _mint(_to, _amount);
        _moveDelegates(address(0), _delegates[_to], _amount);
    }

    function burn(address _from ,uint256 _amount) public onlyOwner {
        _burn(_from, _amount);
        _moveDelegates(_delegates[_from], address(0), _amount);
    }

    // The CAKE TOKEN!
    WAGToken public cake;


    constructor(
        WAGToken _cake
    ) public {
        cake = _cake;
    }

    // Safe cake transfer function, just in case if rounding error causes pool to not have enough CAKEs.
    function safeCakeTransfer(address _to, uint256 _amount) public onlyOwner {
        uint256 cakeBal = cake.balanceOf(address(this));
        if (_amount > cakeBal) {
            cake.transfer(_to, cakeBal);
        } else {
            cake.transfer(_to, _amount);
        }
    }

    // Copied and modified from YAM code:
    // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernanceStorage.sol
    // https://github.com/yam-finance/yam-protocol/blob/master/contracts/token/YAMGovernance.sol
    // Which is copied and modified from COMPOUND:
    // https://github.com/compound-finance/compound-protocol/blob/master/contracts/Governance/Comp.sol

    mapping (address => address) internal _delegates;

    /// @notice A checkpoint for marking number of votes from a given block
    struct Checkpoint {
        uint32 fromBlock;
        uint256 votes;
    }

    /// @notice A record of votes checkpoints for each account, by index
    mapping (address => mapping (uint32 => Checkpoint)) public checkpoints;

    /// @notice The number of checkpoints for each account
    mapping (address => uint32) public numCheckpoints;

    /// @notice The EIP-712 typehash for the contract's domain
    bytes32 public constant DOMAIN_TYPEHASH = keccak256("EIP712Domain(string name,uint256 chainId,address verifyingContract)");

    /// @notice The EIP-712 typehash for the delegation struct used by the contract
    bytes32 public constant DELEGATION_TYPEHASH = keccak256("Delegation(address delegatee,uint256 nonce,uint256 expiry)");

    /// @notice A record of states for signing / validating signatures
    mapping (address => uint) public nonces;

      /// @notice An event thats emitted when an account changes its delegate
    event DelegateChanged(address indexed delegator, address indexed fromDelegate, address indexed toDelegate);

    /// @notice An event thats emitted when a delegate account's vote balance changes
    event DelegateVotesChanged(address indexed delegate, uint previousBalance, uint newBalance);

    /**
     * @notice Delegate votes from `msg.sender` to `delegatee`
     * @param delegator The address to get delegatee for
     */
    function delegates(address delegator)
        external
        view
        returns (address)
    {
        return _delegates[delegator];
    }

   /**
    * @notice Delegate votes from `msg.sender` to `delegatee`
    * @param delegatee The address to delegate votes to
    */
    function delegate(address delegatee) external {
        return _delegate(msg.sender, delegatee);
    }

    /**
     * @notice Delegates votes from signatory to `delegatee`
     * @param delegatee The address to delegate votes to
     * @param nonce The contract state required to match the signature
     * @param expiry The time at which to expire the signature
     * @param v The recovery byte of the signature
     * @param r Half of the ECDSA signature pair
     * @param s Half of the ECDSA signature pair
     */
    function delegateBySig(
        address delegatee,
        uint nonce,
        uint expiry,
        uint8 v,
        bytes32 r,
        bytes32 s
    )
        external
    {
        bytes32 domainSeparator = keccak256(
            abi.encode(
                DOMAIN_TYPEHASH,
                keccak256(bytes(name())),
                getChainId(),
                address(this)
            )
        );

        bytes32 structHash = keccak256(
            abi.encode(
                DELEGATION_TYPEHASH,
                delegatee,
                nonce,
                expiry
            )
        );

        bytes32 digest = keccak256(
            abi.encodePacked(
                "\x19\x01",
                domainSeparator,
                structHash
            )
        );

        address signatory = ecrecover(digest, v, r, s);
        require(signatory != address(0), "CAKE::delegateBySig: invalid signature");
        require(nonce == nonces[signatory]++, "CAKE::delegateBySig: invalid nonce");
        require(block.timestamp <= expiry, "CAKE::delegateBySig: signature expired");
        return _delegate(signatory, delegatee);
    }

    /**
     * @notice Gets the current votes balance for `account`
     * @param account The address to get votes balance
     * @return The number of current votes for `account`
     */
    function getCurrentVotes(address account)
        external
        view
        returns (uint256)
    {
        uint32 nCheckpoints = numCheckpoints[account];
        return nCheckpoints > 0 ? checkpoints[account][nCheckpoints - 1].votes : 0;
    }

    /**
     * @notice Determine the prior number of votes for an account as of a block number
     * @dev Block number must be a finalized block or else this function will revert to prevent misinformation.
     * @param account The address of the account to check
     * @param blockNumber The block number to get the vote balance at
     * @return The number of votes the account had as of the given block
     */
    function getPriorVotes(address account, uint blockNumber)
        external
        view
        returns (uint256)
    {
        require(blockNumber < block.number, "CAKE::getPriorVotes: not yet determined");

        uint32 nCheckpoints = numCheckpoints[account];
        if (nCheckpoints == 0) {
            return 0;
        }

        // First check most recent balance
        if (checkpoints[account][nCheckpoints - 1].fromBlock <= blockNumber) {
            return checkpoints[account][nCheckpoints - 1].votes;
        }

        // Next check implicit zero balance
        if (checkpoints[account][0].fromBlock > blockNumber) {
            return 0;
        }

        uint32 lower = 0;
        uint32 upper = nCheckpoints - 1;
        while (upper > lower) {
            uint32 center = upper - (upper - lower) / 2; // ceil, avoiding overflow
            Checkpoint memory cp = checkpoints[account][center];
            if (cp.fromBlock == blockNumber) {
                return cp.votes;
            } else if (cp.fromBlock < blockNumber) {
                lower = center;
            } else {
                upper = center - 1;
            }
        }
        return checkpoints[account][lower].votes;
    }

    function _delegate(address delegator, address delegatee)
        internal
    {
        address currentDelegate = _delegates[delegator];
        uint256 delegatorBalance = balanceOf(delegator); // balance of underlying CAKEs (not scaled);
        _delegates[delegator] = delegatee;

        emit DelegateChanged(delegator, currentDelegate, delegatee);

        _moveDelegates(currentDelegate, delegatee, delegatorBalance);
    }

    function _moveDelegates(address srcRep, address dstRep, uint256 amount) internal {
        if (srcRep != dstRep && amount > 0) {
            if (srcRep != address(0)) {
                // decrease old representative
                uint32 srcRepNum = numCheckpoints[srcRep];
                uint256 srcRepOld = srcRepNum > 0 ? checkpoints[srcRep][srcRepNum - 1].votes : 0;
                uint256 srcRepNew = srcRepOld.sub(amount);
                _writeCheckpoint(srcRep, srcRepNum, srcRepOld, srcRepNew);
            }

            if (dstRep != address(0)) {
                // increase new representative
                uint32 dstRepNum = numCheckpoints[dstRep];
                uint256 dstRepOld = dstRepNum > 0 ? checkpoints[dstRep][dstRepNum - 1].votes : 0;
                uint256 dstRepNew = dstRepOld.add(amount);
                _writeCheckpoint(dstRep, dstRepNum, dstRepOld, dstRepNew);
            }
        }
    }

    function _writeCheckpoint(
        address delegatee,
        uint32 nCheckpoints,
        uint256 oldVotes,
        uint256 newVotes
    )
        internal
    {
        uint32 blockNumber = safe32(block.number, "CAKE::_writeCheckpoint: block number exceeds 32 bits");

        if (nCheckpoints > 0 && checkpoints[delegatee][nCheckpoints - 1].fromBlock == blockNumber) {
            checkpoints[delegatee][nCheckpoints - 1].votes = newVotes;
        } else {
            checkpoints[delegatee][nCheckpoints] = Checkpoint(blockNumber, newVotes);
            numCheckpoints[delegatee] = nCheckpoints + 1;
        }

        emit DelegateVotesChanged(delegatee, oldVotes, newVotes);
    }

    function safe32(uint n, string memory errorMessage) internal pure returns (uint32) {
        require(n < 2**32, errorMessage);
        return uint32(n);
    }

    function getChainId() internal view returns (uint) {
        uint256 chainId;
        assembly { chainId := chainid() }
        return chainId;
    }
}


// File contracts/WAGFarm.sol

pragma solidity 0.8.0;





// import "@nomiclabs/buidler/console.sol";

interface IMigratorChef {
    // Perform LP token migration from legacy PancakeSwap to CakeSwap.
    // Take the current LP token address and return the new LP token address.
    // Migrator should have full access to the caller's LP token.
    // Return the new LP token address.
    //
    // XXX Migrator must have allowance access to PancakeSwap LP tokens.
    // CakeSwap must mint EXACTLY the same amount of CakeSwap LP tokens or
    // else something bad will happen. Traditional PancakeSwap does not
    // do that so be careful!
    function migrate(IBEP20 token) external returns (IBEP20);
}

// WAGFarm is the master of WAG. He can make WAG and he is a fair guy.
//
// Note that it's ownable and the owner wields tremendous power. The ownership
// will be transferred to a governance smart contract once CAKE is sufficiently
// distributed and the community can show to govern itself.
//
// Have fun reading it. Hopefully it's bug-free. God bless.
contract WAGFarm is Ownable {
    using SafeMath for uint256;
    using SafeBEP20 for IBEP20;

    // Info of each user.
    struct UserInfo {
        uint256 amount;     // How many LP tokens the user has provided.
        uint256 rewardDebt; // Reward debt. See explanation below.
        //
        // We do some fancy math here. Basically, any point in time, the amount of CAKEs
        // entitled to a user but is pending to be distributed is:
        //
        //   pending reward = (user.amount * pool.accCakePerShare) - user.rewardDebt
        //
        // Whenever a user deposits or withdraws LP tokens to a pool. Here's what happens:
        //   1. The pool's `accCakePerShare` (and `lastRewardBlock`) gets updated.
        //   2. User receives the pending reward sent to his/her address.
        //   3. User's `amount` gets updated.
        //   4. User's `rewardDebt` gets updated.
    }

    // Info of each pool.
    struct PoolInfo {
        IBEP20 lpToken;           // Address of LP token contract.
        uint256 allocPoint;       // How many allocation points assigned to this pool. CAKEs to distribute per block.
        uint256 lastRewardTimestamp;  // Last block number that CAKEs distribution occurs.
        uint256 accCakePerShare; // Accumulated CAKEs per share, times 1e12. See below.
    }

    // The CAKE TOKEN!
    WAGToken public cake;
    // The SYRUP TOKEN!
    WAGStake public syrup;
    // Dev address.
    address public devaddr;
    // CAKE tokens created per block.
    uint256 public cakePerSecond;
    // Bonus muliplier for early cake makers.
    uint256 public BONUS_MULTIPLIER = 1;
    // The migrator contract. It has a lot of power. Can only be set through governance (owner).
    IMigratorChef public migrator;

    // Info of each pool.
    PoolInfo[] public poolInfo;
    // Info of each user that stakes LP tokens.
    mapping (uint256 => mapping (address => UserInfo)) public userInfo;
    // Total allocation points. Must be the sum of all allocation points in all pools.
    uint256 public totalAllocPoint = 0;
    // The block number when CAKE mining starts.
    uint256 public startTimestamp;

    event Deposit(address indexed user, uint256 indexed pid, uint256 amount);
    event Withdraw(address indexed user, uint256 indexed pid, uint256 amount);
    event EmergencyWithdraw(address indexed user, uint256 indexed pid, uint256 amount);

    constructor(
        WAGToken _cake,
        WAGStake _syrup,
        address _devaddr,
        uint256 _cakePerSecond,
        uint256 _startTimestamp
    ) public {
        cake = _cake;
        syrup = _syrup;
        devaddr = _devaddr;
        cakePerSecond = _cakePerSecond;
        startTimestamp = _startTimestamp;

        // staking pool
        poolInfo.push(PoolInfo({
            lpToken: _cake,
            allocPoint: 1000,
            lastRewardTimestamp: _startTimestamp,
            accCakePerShare: 0
        }));

        totalAllocPoint = 1000;

    }

    function updateMultiplier(uint256 multiplierNumber) public onlyOwner {
        BONUS_MULTIPLIER = multiplierNumber;
    }

    function poolLength() external view returns (uint256) {
        return poolInfo.length;
    }

    // Add a new lp to the pool. Can only be called by the owner.
    // XXX DO NOT add the same LP token more than once. Rewards will be messed up if you do.
    function add(uint256 _allocPoint, IBEP20 _lpToken, bool _withUpdate) public onlyOwner {
        if (_withUpdate) {
            massUpdatePools();
        }
        uint256 lastRewardTimestamp = block.timestamp > startTimestamp ? block.timestamp : startTimestamp;
        totalAllocPoint = totalAllocPoint.add(_allocPoint);
        poolInfo.push(PoolInfo({
            lpToken: _lpToken,
            allocPoint: _allocPoint,
            lastRewardTimestamp: lastRewardTimestamp,
            accCakePerShare: 0
        }));
        updateStakingPool();
    }

    // Update the given pool's CAKE allocation point. Can only be called by the owner.
    function set(uint256 _pid, uint256 _allocPoint, bool _withUpdate) public onlyOwner {
        if (_withUpdate) {
            massUpdatePools();
        }
        uint256 prevAllocPoint = poolInfo[_pid].allocPoint;
        poolInfo[_pid].allocPoint = _allocPoint;
        if (prevAllocPoint != _allocPoint) {
            totalAllocPoint = totalAllocPoint.sub(prevAllocPoint).add(_allocPoint);
            updateStakingPool();
        }
    }

    function updateStakingPool() internal {
        uint256 length = poolInfo.length;
        uint256 points = 0;
        for (uint256 pid = 1; pid < length; ++pid) {
            points = points.add(poolInfo[pid].allocPoint);
        }
        if (points != 0) {
            points = points.div(3);
            totalAllocPoint = totalAllocPoint.sub(poolInfo[0].allocPoint).add(points);
            poolInfo[0].allocPoint = points;
        }
    }

    // Set the migrator contract. Can only be called by the owner.
    function setMigrator(IMigratorChef _migrator) public onlyOwner {
        migrator = _migrator;
    }

    // Migrate lp token to another lp contract. Can be called by anyone. We trust that migrator contract is good.
    function migrate(uint256 _pid) public {
        require(address(migrator) != address(0), "migrate: no migrator");
        PoolInfo storage pool = poolInfo[_pid];
        IBEP20 lpToken = pool.lpToken;
        uint256 bal = lpToken.balanceOf(address(this));
        lpToken.safeApprove(address(migrator), bal);
        IBEP20 newLpToken = migrator.migrate(lpToken);
        require(bal == newLpToken.balanceOf(address(this)), "migrate: bad");
        pool.lpToken = newLpToken;
    }

    // Return reward multiplier over the given _from to _to block.
    function getMultiplier(uint256 _from, uint256 _to) public view returns (uint256) {
        return _to.sub(_from).mul(BONUS_MULTIPLIER);
    }

    // View function to see pending CAKEs on frontend.
    function pendingCake(uint256 _pid, address _user) external view returns (uint256) {
        PoolInfo storage pool = poolInfo[_pid];
        UserInfo storage user = userInfo[_pid][_user];
        uint256 accCakePerShare = pool.accCakePerShare;
        uint256 lpSupply = pool.lpToken.balanceOf(address(this));
        if (block.timestamp > pool.lastRewardTimestamp && lpSupply != 0) {
            uint256 multiplier = getMultiplier(pool.lastRewardTimestamp, block.timestamp);
            uint256 cakeReward = multiplier.mul(cakePerSecond).mul(pool.allocPoint).div(totalAllocPoint);
            accCakePerShare = accCakePerShare.add(cakeReward.mul(1e12).div(lpSupply));
        }
        return user.amount.mul(accCakePerShare).div(1e12).sub(user.rewardDebt);
    }

    // Update reward variables for all pools. Be careful of gas spending!
    function massUpdatePools() public {
        uint256 length = poolInfo.length;
        for (uint256 pid = 0; pid < length; ++pid) {
            updatePool(pid);
        }
    }


    // Update reward variables of the given pool to be up-to-date.
    function updatePool(uint256 _pid) public {
        PoolInfo storage pool = poolInfo[_pid];
        if (block.timestamp <= pool.lastRewardTimestamp) {
            return;
        }
        uint256 lpSupply = pool.lpToken.balanceOf(address(this));
        if (lpSupply == 0) {
            pool.lastRewardTimestamp = block.timestamp;
            return;
        }
        uint256 multiplier = getMultiplier(pool.lastRewardTimestamp, block.timestamp);
        uint256 cakeReward = multiplier.mul(cakePerSecond).mul(pool.allocPoint).div(totalAllocPoint);
        cake.mint(devaddr, cakeReward.div(10));
        cake.mint(address(syrup), cakeReward);
        pool.accCakePerShare = pool.accCakePerShare.add(cakeReward.mul(1e12).div(lpSupply));
        pool.lastRewardTimestamp = block.timestamp;
    }

    // Deposit LP tokens to WAGFarm for WAG allocation.
    function deposit(uint256 _pid, uint256 _amount) public {

        require (_pid != 0, 'deposit WAG by staking');

        PoolInfo storage pool = poolInfo[_pid];
        UserInfo storage user = userInfo[_pid][msg.sender];
        updatePool(_pid);
        if (user.amount > 0) {
            uint256 pending = user.amount.mul(pool.accCakePerShare).div(1e12).sub(user.rewardDebt);
            if(pending > 0) {
                safeCakeTransfer(msg.sender, pending);
            }
        }
        if (_amount > 0) {
            pool.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount);
            user.amount = user.amount.add(_amount);
        }
        user.rewardDebt = user.amount.mul(pool.accCakePerShare).div(1e12);
        emit Deposit(msg.sender, _pid, _amount);
    }

    // Withdraw LP tokens from WAGFarm.
    function withdraw(uint256 _pid, uint256 _amount) public {

        require (_pid != 0, 'withdraw CAKE by unstaking');
        PoolInfo storage pool = poolInfo[_pid];
        UserInfo storage user = userInfo[_pid][msg.sender];
        require(user.amount >= _amount, "withdraw: not good");

        updatePool(_pid);
        uint256 pending = user.amount.mul(pool.accCakePerShare).div(1e12).sub(user.rewardDebt);
        if(pending > 0) {
            safeCakeTransfer(msg.sender, pending);
        }
        if(_amount > 0) {
            user.amount = user.amount.sub(_amount);
            pool.lpToken.safeTransfer(address(msg.sender), _amount);
        }
        user.rewardDebt = user.amount.mul(pool.accCakePerShare).div(1e12);
        emit Withdraw(msg.sender, _pid, _amount);
    }

    // Stake WAG tokens to WAGFarm
    function enterStaking(uint256 _amount) public {
        PoolInfo storage pool = poolInfo[0];
        UserInfo storage user = userInfo[0][msg.sender];
        updatePool(0);
        if (user.amount > 0) {
            uint256 pending = user.amount.mul(pool.accCakePerShare).div(1e12).sub(user.rewardDebt);
            if(pending > 0) {
                safeCakeTransfer(msg.sender, pending);
            }
        }
        if(_amount > 0) {
            pool.lpToken.safeTransferFrom(address(msg.sender), address(this), _amount);
            user.amount = user.amount.add(_amount);
        }
        user.rewardDebt = user.amount.mul(pool.accCakePerShare).div(1e12);

        syrup.mint(msg.sender, _amount);
        emit Deposit(msg.sender, 0, _amount);
    }

    // Withdraw WAG tokens from STAKING.
    function leaveStaking(uint256 _amount) public {
        PoolInfo storage pool = poolInfo[0];
        UserInfo storage user = userInfo[0][msg.sender];
        require(user.amount >= _amount, "withdraw: not good");
        updatePool(0);
        uint256 pending = user.amount.mul(pool.accCakePerShare).div(1e12).sub(user.rewardDebt);
        if(pending > 0) {
            safeCakeTransfer(msg.sender, pending);
        }
        if(_amount > 0) {
            user.amount = user.amount.sub(_amount);
            pool.lpToken.safeTransfer(address(msg.sender), _amount);
        }
        user.rewardDebt = user.amount.mul(pool.accCakePerShare).div(1e12);

        syrup.burn(msg.sender, _amount);
        emit Withdraw(msg.sender, 0, _amount);
    }

    // Withdraw without caring about rewards. EMERGENCY ONLY.
    function emergencyWithdraw(uint256 _pid) public {
        PoolInfo storage pool = poolInfo[_pid];
        UserInfo storage user = userInfo[_pid][msg.sender];
        pool.lpToken.safeTransfer(address(msg.sender), user.amount);
        emit EmergencyWithdraw(msg.sender, _pid, user.amount);
        user.amount = 0;
        user.rewardDebt = 0;
    }

    // Safe cake transfer function, just in case if rounding error causes pool to not have enough CAKEs.
    function safeCakeTransfer(address _to, uint256 _amount) internal {
        syrup.safeCakeTransfer(_to, _amount);
    }

    // Update dev address by the previous dev.
    function dev(address _devaddr) public {
        require(msg.sender == devaddr, "dev: wut?");
        devaddr = _devaddr;
    }
}


// File contracts/LotteryRewardPool.sol

pragma solidity 0.8.0;



contract LotteryRewardPool is Ownable {
    using SafeBEP20 for IBEP20;

    WAGFarm public chef;
    address public adminAddress;
    address public receiver;
    IBEP20 public lptoken;
    IBEP20 public cake;

    constructor(
        WAGFarm _chef,
        IBEP20 _cake,
        address _admin,
        address _receiver
    ) public {
        chef = _chef;
        cake = _cake;
        adminAddress = _admin;
        receiver = _receiver;
    }

    event StartFarming(address indexed user, uint256 indexed pid);
    event Harvest(address indexed user, uint256 indexed pid);
    event EmergencyWithdraw(address indexed user, uint256 amount);

    modifier onlyAdmin() {
        require(msg.sender == adminAddress, "admin: wut?");
        _;
    }

    function startFarming(uint256 _pid, IBEP20 _lptoken, uint256 _amount) external onlyAdmin {
        _lptoken.safeApprove(address(chef), _amount);
        chef.deposit(_pid, _amount);
        emit StartFarming(msg.sender, _pid);
    }

    function  harvest(uint256 _pid) external onlyAdmin {
        chef.deposit(_pid, 0);
        uint256 balance = cake.balanceOf(address(this));
        cake.safeTransfer(receiver, balance);
        emit Harvest(msg.sender, _pid);
    }

    function setReceiver(address _receiver) external onlyAdmin {
        receiver = _receiver;
    }

    function  pendingReward(uint256 _pid) external view returns (uint256) {
        return chef.pendingCake(_pid, address(this));
    }

    // EMERGENCY ONLY.
    function emergencyWithdraw(IBEP20 _token, uint256 _amount) external onlyOwner {
        cake.safeTransfer(address(msg.sender), _amount);
        emit EmergencyWithdraw(msg.sender, _amount);
    }

    function setAdmin(address _admin) external onlyOwner {
        adminAddress = _admin;
    }

}


// File contracts/TE12.sol

pragma solidity ^0.8.0;

contract TE12 is BEP20('Test Token 12 decimals', 'TE12', 12) {
}


// File contracts/TE18.sol

pragma solidity ^0.8.0;

contract TE18 is BEP20('Test Token 18 decimals', 'TE12', 18) {
}


// File contracts/TE6.sol

pragma solidity ^0.8.0;

contract TE6 is BEP20('Test Token 6 decimals', 'TE6', 6) {
}


// File contracts/TE9.sol

pragma solidity ^0.8.0;

contract TE9 is BEP20('Test Token 9 decimals', 'TE9', 9) {
}


// File contracts/Timelock.sol

pragma solidity ^0.8.0;

contract Timelock {

    using SafeMath for uint;

    event NewAdmin(address indexed newAdmin);
    event NewPendingAdmin(address indexed newPendingAdmin);
    event NewDelay(uint indexed newDelay);
    event CancelTransaction(bytes32 indexed txHash, address indexed target, uint value, string signature, bytes data, uint eta);
    event ExecuteTransaction(bytes32 indexed txHash, address indexed target, uint value, string signature, bytes data, uint eta);
    event QueueTransaction(bytes32 indexed txHash, address indexed target, uint value, string signature, bytes data, uint eta);

    uint public constant GRACE_PERIOD = 14 days;
    uint public constant MINIMUM_DELAY = 6 hours;
    uint public constant MAXIMUM_DELAY = 30 days;

    address public admin;
    address public pendingAdmin;
    uint public delay;
    bool public admin_initialized;

    mapping(bytes32 => bool) public queuedTransactions;


    constructor(address admin_, uint delay_) {
        require(delay_ >= MINIMUM_DELAY, "Timelock::constructor: Delay must exceed minimum delay.");
        require(delay_ <= MAXIMUM_DELAY, "Timelock::constructor: Delay must not exceed maximum delay.");

        admin = admin_;
        delay = delay_;
        admin_initialized = false;
    }

    // XXX: function() external payable { }
    receive() external payable {}

    function setDelay(uint delay_) public {
        require(msg.sender == address(this), "Timelock::setDelay: Call must come from Timelock.");
        require(delay_ >= MINIMUM_DELAY, "Timelock::setDelay: Delay must exceed minimum delay.");
        require(delay_ <= MAXIMUM_DELAY, "Timelock::setDelay: Delay must not exceed maximum delay.");
        delay = delay_;

        emit NewDelay(delay);
    }

    function acceptAdmin() public {
        require(msg.sender == pendingAdmin, "Timelock::acceptAdmin: Call must come from pendingAdmin.");
        admin = msg.sender;
        pendingAdmin = address(0);

        emit NewAdmin(admin);
    }

    function setPendingAdmin(address pendingAdmin_) public {
        // allows one time setting of admin for deployment purposes
        if (admin_initialized) {
            require(msg.sender == address(this), "Timelock::setPendingAdmin: Call must come from Timelock.");
        } else {
            require(msg.sender == admin, "Timelock::setPendingAdmin: First call must come from admin.");
            admin_initialized = true;
        }
        pendingAdmin = pendingAdmin_;

        emit NewPendingAdmin(pendingAdmin);
    }

    function queueTransaction(address target, uint value, string memory signature, bytes memory data, uint eta) public returns (bytes32) {
        require(msg.sender == admin, "Timelock::queueTransaction: Call must come from admin.");
        require(eta >= getBlockTimestamp().add(delay), "Timelock::queueTransaction: Estimated execution block must satisfy delay.");

        bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));
        queuedTransactions[txHash] = true;

        emit QueueTransaction(txHash, target, value, signature, data, eta);
        return txHash;
    }

    function cancelTransaction(address target, uint value, string memory signature, bytes memory data, uint eta) public {
        require(msg.sender == admin, "Timelock::cancelTransaction: Call must come from admin.");

        bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));
        queuedTransactions[txHash] = false;

        emit CancelTransaction(txHash, target, value, signature, data, eta);
    }

    function executeTransaction(address target, uint value, string memory signature, bytes memory data, uint eta) public payable returns (bytes memory) {
        require(msg.sender == admin, "Timelock::executeTransaction: Call must come from admin.");

        bytes32 txHash = keccak256(abi.encode(target, value, signature, data, eta));
        require(queuedTransactions[txHash], "Timelock::executeTransaction: Transaction hasn't been queued.");
        require(getBlockTimestamp() >= eta, "Timelock::executeTransaction: Transaction hasn't surpassed time lock.");
        require(getBlockTimestamp() <= eta.add(GRACE_PERIOD), "Timelock::executeTransaction: Transaction is stale.");

        queuedTransactions[txHash] = false;

        bytes memory callData;

        if (bytes(signature).length == 0) {
            callData = data;
        } else {
            callData = abi.encodePacked(bytes4(keccak256(bytes(signature))), data);
        }

        // solium-disable-next-line security/no-call-value
        (bool success, bytes memory returnData) = target.call{value : value}(callData);
        require(success, "Timelock::executeTransaction: Transaction execution reverted.");

        emit ExecuteTransaction(txHash, target, value, signature, data, eta);

        return returnData;
    }

    function getBlockTimestamp() internal view returns (uint) {
        // solium-disable-next-line security/no-block-members
        return block.timestamp;
    }
}


// File contracts/utils/FixedPoint.sol

pragma solidity >=0.4.0;

// a library for handling binary fixed point numbers (https://en.wikipedia.org/wiki/Q_(number_format))
library FixedPoint {
    // range: [0, 2**112 - 1]
    // resolution: 1 / 2**112
    struct uq112x112 {
        uint224 _x;
    }

    // range: [0, 2**144 - 1]
    // resolution: 1 / 2**112
    struct uq144x112 {
        uint256 _x;
    }

    uint8 private constant RESOLUTION = 112;
    uint256 private constant Q112 = uint256(1) << RESOLUTION;
    uint256 private constant Q224 = Q112 << RESOLUTION;

    // encode a uint112 as a UQ112x112
    function encode(uint112 x) internal pure returns (uq112x112 memory) {
        return uq112x112(uint224(x) << RESOLUTION);
    }

    // encodes a uint144 as a UQ144x112
    function encode144(uint144 x) internal pure returns (uq144x112 memory) {
        return uq144x112(uint256(x) << RESOLUTION);
    }

    // divide a UQ112x112 by a uint112, returning a UQ112x112
    function div(uq112x112 memory self, uint112 x) internal pure returns (uq112x112 memory) {
        require(x != 0, 'FixedPoint: DIV_BY_ZERO');
        return uq112x112(self._x / uint224(x));
    }

    // multiply a UQ112x112 by a uint, returning a UQ144x112
    // reverts on overflow
    function mul(uq112x112 memory self, uint256 y) internal pure returns (uq144x112 memory) {
        uint256 z;
        require(y == 0 || (z = uint256(self._x) * y) / y == uint256(self._x), 'FixedPoint: MULTIPLICATION_OVERFLOW');
        return uq144x112(z);
    }

    // returns a UQ112x112 which represents the ratio of the numerator to the denominator
    // equivalent to encode(numerator).div(denominator)
    function fraction(uint112 numerator, uint112 denominator) internal pure returns (uq112x112 memory) {
        require(denominator > 0, 'FixedPoint: DIV_BY_ZERO');
        return uq112x112((uint224(numerator) << RESOLUTION) / denominator);
    }

    // decode a UQ112x112 into a uint112 by truncating after the radix point
    function decode(uq112x112 memory self) internal pure returns (uint112) {
        return uint112(self._x >> RESOLUTION);
    }

    // decode a UQ144x112 into a uint144 by truncating after the radix point
    function decode144(uq144x112 memory self) internal pure returns (uint144) {
        return uint144(self._x >> RESOLUTION);
    }

    // take the reciprocal of a UQ112x112
    function reciprocal(uq112x112 memory self) internal pure returns (uq112x112 memory) {
        require(self._x != 0, 'FixedPoint: ZERO_RECIPROCAL');
        return uq112x112(uint224(Q224 / self._x));
    }

    // square root of a UQ112x112
    function sqrt(uq112x112 memory self) internal pure returns (uq112x112 memory) {
        return uq112x112(uint224(SafeMath.sqrt(uint256(self._x)) << 56));
    }
}


// File contracts/utils/AddressStringUtil.sol

pragma solidity >=0.5.0;

library AddressStringUtil {
    // converts an address to the uppercase hex string, extracting only len bytes (up to 20, multiple of 2)
    function toAsciiString(address addr, uint256 len) internal pure returns (string memory) {
        require(len % 2 == 0 && len > 0 && len <= 40, 'AddressStringUtil: INVALID_LEN');

        bytes memory s = new bytes(len);
        uint256 addrNum = uint256(uint160(addr));
        for (uint256 i = 0; i < len / 2; i++) {
            // shift right and truncate all but the least significant byte to extract the byte at position 19-i
            uint8 b = uint8(addrNum >> (8 * (19 - i)));
            // first hex character is the most significant 4 bits
            uint8 hi = b >> 4;
            // second hex character is the least significant 4 bits
            uint8 lo = b - (hi << 4);
            s[2 * i] = char(hi);
            s[2 * i + 1] = char(lo);
        }
        return string(s);
    }

    // hi and lo are only 4 bits and between 0 and 16
    // this method converts those values to the unicode/ascii code point for the hex representation
    // uses upper case for the characters
    function char(uint8 b) private pure returns (bytes1 c) {
        if (b < 10) {
            return bytes1(b + 0x30);
        } else {
            return bytes1(b + 0x37);
        }
    }
}


// File contracts/utils/SafeBEP20Namer.sol

pragma solidity >=0.5.0;

// produces token descriptors from inconsistent or absent BEP20 symbol implementations that can return string or bytes32
// this library will always produce a string symbol to represent the token
library SafeBEP20Namer {
    function bytes32ToString(bytes32 x) private pure returns (string memory) {
        bytes memory bytesString = new bytes(32);
        uint256 charCount = 0;
        for (uint256 j = 0; j < 32; j++) {
            bytes1 char = x[j];
            if (char != 0) {
                bytesString[charCount] = char;
                charCount++;
            }
        }
        bytes memory bytesStringTrimmed = new bytes(charCount);
        for (uint256 j = 0; j < charCount; j++) {
            bytesStringTrimmed[j] = bytesString[j];
        }
        return string(bytesStringTrimmed);
    }

    // assumes the data is in position 2
    function parseStringData(bytes memory b) private pure returns (string memory) {
        uint256 charCount = 0;
        // first parse the charCount out of the data
        for (uint256 i = 32; i < 64; i++) {
            charCount <<= 8;
            charCount += uint8(b[i]);
        }

        bytes memory bytesStringTrimmed = new bytes(charCount);
        for (uint256 i = 0; i < charCount; i++) {
            bytesStringTrimmed[i] = b[i + 64];
        }

        return string(bytesStringTrimmed);
    }

    // uses a heuristic to produce a token name from the address
    // the heuristic returns the full hex of the address string in upper case
    function addressToName(address token) private pure returns (string memory) {
        return AddressStringUtil.toAsciiString(token, 40);
    }

    // uses a heuristic to produce a token symbol from the address
    // the heuristic returns the first 6 hex of the address string in upper case
    function addressToSymbol(address token) private pure returns (string memory) {
        return AddressStringUtil.toAsciiString(token, 6);
    }

    // calls an external view token contract method that returns a symbol or name, and parses the output into a string
    function callAndParseStringReturn(address token, bytes4 selector) private view returns (string memory) {
        (bool success, bytes memory data) = token.staticcall(abi.encodeWithSelector(selector));
        // if not implemented, or returns empty data, return empty string
        if (!success || data.length == 0) {
            return '';
        }
        // bytes32 data always has length 32
        if (data.length == 32) {
            bytes32 decoded = abi.decode(data, (bytes32));
            return bytes32ToString(decoded);
        } else if (data.length > 64) {
            return abi.decode(data, (string));
        }
        return '';
    }

    // attempts to extract the token symbol. if it does not implement symbol, returns a symbol derived from the address
    function tokenSymbol(address token) internal view returns (string memory) {
        // 0x95d89b41 = bytes4(keccak256("symbol()"))
        string memory symbol = callAndParseStringReturn(token, 0x95d89b41);
        if (bytes(symbol).length == 0) {
            // fallback to 6 uppercase hex of address
            return addressToSymbol(token);
        }
        return symbol;
    }

    // attempts to extract the token name. if it does not implement name, returns a name derived from the address
    function tokenName(address token) internal view returns (string memory) {
        // 0x06fdde03 = bytes4(keccak256("name()"))
        string memory name = callAndParseStringReturn(token, 0x06fdde03);
        if (bytes(name).length == 0) {
            // fallback to full hex of address
            return addressToName(token);
        }
        return name;
    }
}


// File contracts/utils/PairNamer.sol

pragma solidity >=0.5.0;

// produces names for pairs of tokens using Uniswap's naming scheme
library PairNamer {
    string private constant TOKEN_SYMBOL_PREFIX = 'WagPair';
    string private constant TOKEN_SEPARATOR = ':';

    // produces a pair descriptor in the format of `${prefix}${name0}:${name1}${suffix}`
    function pairName(
        address token0,
        address token1,
        string memory prefix,
        string memory suffix
    ) internal view returns (string memory) {
        return
            string(
                abi.encodePacked(
                    prefix,
                    SafeBEP20Namer.tokenName(token0),
                    TOKEN_SEPARATOR,
                    SafeBEP20Namer.tokenName(token1),
                    suffix
                )
            );
    }

    // produces a pair symbol in the format of `🦄${symbol0}:${symbol1}${suffix}`
    function pairSymbol(
        address token0,
        address token1,
        string memory suffix
    ) internal view returns (string memory) {
        return
            string(
                abi.encodePacked(
                    TOKEN_SYMBOL_PREFIX,
                    SafeBEP20Namer.tokenSymbol(token0),
                    TOKEN_SEPARATOR,
                    SafeBEP20Namer.tokenSymbol(token1),
                    suffix
                )
            );
    }
}


// File contracts/utils/Pausable.sol

pragma solidity ^0.8.0;

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() internal {
        _paused = false;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        require(!paused(), "Pausable: paused");
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        require(paused(), "Pausable: not paused");
        _;
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}


// File contracts/interfaces/IMasterChef.sol

pragma solidity ^0.8.0;

interface IMasterChef {
    function deposit(uint256 _pid, uint256 _amount) external;

    function withdraw(uint256 _pid, uint256 _amount) external;

    function enterStaking(uint256 _amount) external;

    function leaveStaking(uint256 _amount) external;

    function pendingCake(uint256 _pid, address _user) external view returns (uint256);

    function userInfo(uint256 _pid, address _user) external view returns (uint256, uint256);

    function emergencyWithdraw(uint256 _pid) external;
}


// File contracts/WagyuVault.sol

pragma solidity ^0.8.0;







// File: contracts/CakeVault.sol

contract WagyuVault is Ownable, Pausable {
    using SafeBEP20 for IBEP20;
    using SafeMath for uint256;

    struct UserInfo {
        uint256 shares; // number of shares for a user
        uint256 lastDepositedTime; // keeps track of deposited time for potential penalty
        uint256 cakeAtLastUserAction; // keeps track of cake deposited at the last user action
        uint256 lastUserActionTime; // keeps track of the last user action time
    }

    IBEP20 public immutable token; // Cake token
    IBEP20 public immutable receiptToken; // Syrup token

    IMasterChef public immutable masterchef;

    mapping(address => UserInfo) public userInfo;

    uint256 public totalShares;
    uint256 public lastHarvestedTime;
    address public admin;
    address public treasury;

    uint256 public constant MAX_PERFORMANCE_FEE = 500; // 5%
    uint256 public constant MAX_CALL_FEE = 100; // 1%
    uint256 public constant MAX_WITHDRAW_FEE = 100; // 1%
    uint256 public constant MAX_WITHDRAW_FEE_PERIOD = 72 hours; // 3 days

    uint256 public performanceFee = 200; // 2%
    uint256 public callFee = 25; // 0.25%
    uint256 public withdrawFee = 10; // 0.1%
    uint256 public withdrawFeePeriod = 72 hours; // 3 days

    event Deposit(address indexed sender, uint256 amount, uint256 shares, uint256 lastDepositedTime);
    event Withdraw(address indexed sender, uint256 amount, uint256 shares);
    event Harvest(address indexed sender, uint256 performanceFee, uint256 callFee);
    event Pause();
    event Unpause();

    /**
     * @notice Constructor
     * @param _token: Cake token contract
     * @param _receiptToken: Syrup token contract
     * @param _masterchef: MasterChef contract
     * @param _admin: address of the admin
     * @param _treasury: address of the treasury (collects fees)
     */
    constructor(
        IBEP20 _token,
        IBEP20 _receiptToken,
        IMasterChef _masterchef,
        address _admin,
        address _treasury
    ) public {
        token = _token;
        receiptToken = _receiptToken;
        masterchef = _masterchef;
        admin = _admin;
        treasury = _treasury;

        // Infinite approve
        IBEP20(_token).safeApprove(address(_masterchef), 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF);
    }

    /**
     * @notice Checks if the msg.sender is the admin address
     */
    modifier onlyAdmin() {
        require(msg.sender == admin, "admin: wut?");
        _;
    }

    /**
     * @notice Checks if the msg.sender is a contract or a proxy
     */
    modifier notContract() {
        require(!_isContract(msg.sender), "contract not allowed");
        require(msg.sender == tx.origin, "proxy contract not allowed");
        _;
    }

    /**
     * @notice Deposits funds into the Cake Vault
     * @dev Only possible when contract not paused.
     * @param _amount: number of tokens to deposit (in CAKE)
     */
    function deposit(uint256 _amount) external whenNotPaused notContract {
        require(_amount > 0, "Nothing to deposit");

        uint256 pool = balanceOf();
        token.safeTransferFrom(msg.sender, address(this), _amount);
        uint256 currentShares = 0;
        if (totalShares != 0) {
            currentShares = (_amount.mul(totalShares)).div(pool);
        } else {
            currentShares = _amount;
        }
        UserInfo storage user = userInfo[msg.sender];

        user.shares = user.shares.add(currentShares);
        user.lastDepositedTime = block.timestamp;

        totalShares = totalShares.add(currentShares);

        user.cakeAtLastUserAction = user.shares.mul(balanceOf()).div(totalShares);
        user.lastUserActionTime = block.timestamp;

        _earn();

        emit Deposit(msg.sender, _amount, currentShares, block.timestamp);
    }

    /**
     * @notice Withdraws all funds for a user
     */
    function withdrawAll() external notContract {
        withdraw(userInfo[msg.sender].shares);
    }

    /**
     * @notice Reinvests CAKE tokens into MasterChef
     * @dev Only possible when contract not paused.
     */
    function harvest() external notContract whenNotPaused {
        IMasterChef(masterchef).leaveStaking(0);

        uint256 bal = available();
        uint256 currentPerformanceFee = bal.mul(performanceFee).div(10000);
        token.safeTransfer(treasury, currentPerformanceFee);

        uint256 currentCallFee = bal.mul(callFee).div(10000);
        token.safeTransfer(msg.sender, currentCallFee);

        _earn();

        lastHarvestedTime = block.timestamp;

        emit Harvest(msg.sender, currentPerformanceFee, currentCallFee);
    }

    /**
     * @notice Sets admin address
     * @dev Only callable by the contract owner.
     */
    function setAdmin(address _admin) external onlyOwner {
        require(_admin != address(0), "Cannot be zero address");
        admin = _admin;
    }

    /**
     * @notice Sets treasury address
     * @dev Only callable by the contract owner.
     */
    function setTreasury(address _treasury) external onlyOwner {
        require(_treasury != address(0), "Cannot be zero address");
        treasury = _treasury;
    }

    /**
     * @notice Sets performance fee
     * @dev Only callable by the contract admin.
     */
    function setPerformanceFee(uint256 _performanceFee) external onlyAdmin {
        require(_performanceFee <= MAX_PERFORMANCE_FEE, "performanceFee cannot be more than MAX_PERFORMANCE_FEE");
        performanceFee = _performanceFee;
    }

    /**
     * @notice Sets call fee
     * @dev Only callable by the contract admin.
     */
    function setCallFee(uint256 _callFee) external onlyAdmin {
        require(_callFee <= MAX_CALL_FEE, "callFee cannot be more than MAX_CALL_FEE");
        callFee = _callFee;
    }

    /**
     * @notice Sets withdraw fee
     * @dev Only callable by the contract admin.
     */
    function setWithdrawFee(uint256 _withdrawFee) external onlyAdmin {
        require(_withdrawFee <= MAX_WITHDRAW_FEE, "withdrawFee cannot be more than MAX_WITHDRAW_FEE");
        withdrawFee = _withdrawFee;
    }

    /**
     * @notice Sets withdraw fee period
     * @dev Only callable by the contract admin.
     */
    function setWithdrawFeePeriod(uint256 _withdrawFeePeriod) external onlyAdmin {
        require(
            _withdrawFeePeriod <= MAX_WITHDRAW_FEE_PERIOD,
            "withdrawFeePeriod cannot be more than MAX_WITHDRAW_FEE_PERIOD"
        );
        withdrawFeePeriod = _withdrawFeePeriod;
    }

    /**
     * @notice Withdraws from MasterChef to Vault without caring about rewards.
     * @dev EMERGENCY ONLY. Only callable by the contract admin.
     */
    function emergencyWithdraw() external onlyAdmin {
        IMasterChef(masterchef).emergencyWithdraw(0);
    }

    /**
     * @notice Withdraw unexpected tokens sent to the Cake Vault
     */
    function inCaseTokensGetStuck(address _token) external onlyAdmin {
        require(_token != address(token), "Token cannot be same as deposit token");
        require(_token != address(receiptToken), "Token cannot be same as receipt token");

        uint256 amount = IBEP20(_token).balanceOf(address(this));
        IBEP20(_token).safeTransfer(msg.sender, amount);
    }

    /**
     * @notice Triggers stopped state
     * @dev Only possible when contract not paused.
     */
    function pause() external onlyAdmin whenNotPaused {
        _pause();
        emit Pause();
    }

    /**
     * @notice Returns to normal state
     * @dev Only possible when contract is paused.
     */
    function unpause() external onlyAdmin whenPaused {
        _unpause();
        emit Unpause();
    }

    /**
     * @notice Calculates the expected harvest reward from third party
     * @return Expected reward to collect in CAKE
     */
    function calculateHarvestCakeRewards() external view returns (uint256) {
        uint256 amount = IMasterChef(masterchef).pendingCake(0, address(this));
        amount = amount.add(available());
        uint256 currentCallFee = amount.mul(callFee).div(10000);

        return currentCallFee;
    }

    /**
     * @notice Calculates the total pending rewards that can be restaked
     * @return Returns total pending cake rewards
     */
    function calculateTotalPendingCakeRewards() external view returns (uint256) {
        uint256 amount = IMasterChef(masterchef).pendingCake(0, address(this));
        amount = amount.add(available());

        return amount;
    }

    /**
     * @notice Calculates the price per share
     */
    function getPricePerFullShare() external view returns (uint256) {
        return totalShares == 0 ? 1e18 : balanceOf().mul(1e18).div(totalShares);
    }

    /**
     * @notice Withdraws from funds from the Cake Vault
     * @param _shares: Number of shares to withdraw
     */
    function withdraw(uint256 _shares) public notContract {
        UserInfo storage user = userInfo[msg.sender];
        require(_shares > 0, "Nothing to withdraw");
        require(_shares <= user.shares, "Withdraw amount exceeds balance");

        uint256 currentAmount = (balanceOf().mul(_shares)).div(totalShares);
        user.shares = user.shares.sub(_shares);
        totalShares = totalShares.sub(_shares);

        uint256 bal = available();
        if (bal < currentAmount) {
            uint256 balWithdraw = currentAmount.sub(bal);
            IMasterChef(masterchef).leaveStaking(balWithdraw);
            uint256 balAfter = available();
            uint256 diff = balAfter.sub(bal);
            if (diff < balWithdraw) {
                currentAmount = bal.add(diff);
            }
        }

        if (block.timestamp < user.lastDepositedTime.add(withdrawFeePeriod)) {
            uint256 currentWithdrawFee = currentAmount.mul(withdrawFee).div(10000);
            token.safeTransfer(treasury, currentWithdrawFee);
            currentAmount = currentAmount.sub(currentWithdrawFee);
        }

        if (user.shares > 0) {
            user.cakeAtLastUserAction = user.shares.mul(balanceOf()).div(totalShares);
        } else {
            user.cakeAtLastUserAction = 0;
        }

        user.lastUserActionTime = block.timestamp;

        token.safeTransfer(msg.sender, currentAmount);

        emit Withdraw(msg.sender, currentAmount, _shares);
    }

    /**
     * @notice Custom logic for how much the vault allows to be borrowed
     * @dev The contract puts 100% of the tokens to work.
     */
    function available() public view returns (uint256) {
        return token.balanceOf(address(this));
    }

    /**
     * @notice Calculates the total underlying tokens
     * @dev It includes tokens held by the contract and held in MasterChef
     */
    function balanceOf() public view returns (uint256) {
        (uint256 amount, ) = IMasterChef(masterchef).userInfo(0, address(this));
        return token.balanceOf(address(this)).add(amount);
    }

    /**
     * @notice Deposits tokens into MasterChef to earn staking rewards
     */
    function _earn() internal {
        uint256 bal = available();
        if (bal > 0) {
            IMasterChef(masterchef).enterStaking(bal);
        }
    }

    /**
     * @notice Checks if address is a contract
     * @dev It prevents contract from being targetted
     */
    function _isContract(address addr) internal view returns (bool) {
        uint256 size;
        assembly {
            size := extcodesize(addr)
        }
        return size > 0;
    }
}


// File contracts/VaultOwner.sol

pragma solidity ^0.8.0;

contract VaultOwner is Ownable {
    using SafeBEP20 for IBEP20;

    WagyuVault public immutable wagyuVault;

    /**
     * @notice Constructor
     * @param _wagyuVaultAddress: WagyuVault contract address
     */
    constructor(address _wagyuVaultAddress) public {
        wagyuVault = WagyuVault(_wagyuVaultAddress);
    }

    /**
     * @notice Sets admin address to this address
     * @dev Only callable by the contract owner.
     * It makes the admin == owner.
     */
    function setAdmin() external onlyOwner {
        wagyuVault.setAdmin(address(this));
    }

    /**
     * @notice Sets treasury address
     * @dev Only callable by the contract owner.
     */
    function setTreasury(address _treasury) external onlyOwner {
        wagyuVault.setTreasury(_treasury);
    }

    /**
     * @notice Sets performance fee
     * @dev Only callable by the contract owner.
     */
    function setPerformanceFee(uint256 _performanceFee) external onlyOwner {
        wagyuVault.setPerformanceFee(_performanceFee);
    }

    /**
     * @notice Sets call fee
     * @dev Only callable by the contract owner.
     */
    function setCallFee(uint256 _callFee) external onlyOwner {
        wagyuVault.setCallFee(_callFee);
    }

    /**
     * @notice Sets withdraw fee
     * @dev Only callable by the contract owner.
     */
    function setWithdrawFee(uint256 _withdrawFee) external onlyOwner {
        wagyuVault.setWithdrawFee(_withdrawFee);
    }

    /**
     * @notice Sets withdraw fee period
     * @dev Only callable by the contract owner.
     */
    function setWithdrawFeePeriod(uint256 _withdrawFeePeriod) external onlyOwner {
        wagyuVault.setWithdrawFeePeriod(_withdrawFeePeriod);
    }

    /**
     * @notice Withdraw unexpected tokens sent to the Wagyu Vault
     */
    function inCaseTokensGetStuck(address _token) external onlyOwner {
        wagyuVault.inCaseTokensGetStuck(_token);
        uint256 amount = IBEP20(_token).balanceOf(address(this));
        IBEP20(_token).safeTransfer(msg.sender, amount);
    }

    /**
     * @notice Triggers stopped state
     * @dev Only possible when contract not paused.
     */
    function pause() external onlyOwner {
        wagyuVault.pause();
    }

    /**
     * @notice Returns to normal state
     * @dev Only possible when contract is paused.
     */
    function unpause() external onlyOwner {
        wagyuVault.unpause();
    }
}


// File contracts/VLXStaking.sol

pragma solidity 0.8.0;




// import "@nomiclabs/buidler/console.sol";

interface IWBNB {
    function deposit() external payable;
    function transfer(address to, uint256 value) external returns (bool);
    function withdraw(uint256) external;
}

contract VLXStaking is Ownable {
    using SafeMath for uint256;
    using SafeBEP20 for IBEP20;

    // Info of each user.
    struct UserInfo {
        uint256 amount;     // How many LP tokens the user has provided.
        uint256 rewardDebt; // Reward debt. See explanation below.
        bool inBlackList;
    }

    // Info of each pool.
    struct PoolInfo {
        IBEP20 lpToken;           // Address of LP token contract.
        uint256 allocPoint;       // How many allocation points assigned to this pool. CAKEs to distribute per block.
        uint256 lastRewardTimestamp;  // Last block number that CAKEs distribution occurs.
        uint256 accCakePerShare; // Accumulated CAKEs per share, times 1e12. See below.
    }

    // The REWARD TOKEN
    IBEP20 public rewardToken;

    // adminAddress
    address public adminAddress;


    // WBNB
    address public immutable WBNB;

    // CAKE tokens created per block.
    uint256 public rewardPerSecond;

    // Info of each pool.
    PoolInfo[] public poolInfo;
    // Info of each user that stakes LP tokens.
    mapping (address => UserInfo) public userInfo;
    // limit 10 BNB here
    uint256 public limitAmount = 10000000000000000000;
    // Total allocation poitns. Must be the sum of all allocation points in all pools.
    uint256 public totalAllocPoint = 0;
    // The block number when CAKE mining starts.
    uint256 public startTimestamp;
    // The block number when CAKE mining ends.
    uint256 public bonusEndTimestamp;

    event Deposit(address indexed user, uint256 amount);
    event Withdraw(address indexed user, uint256 amount);
    event EmergencyWithdraw(address indexed user, uint256 amount);

    constructor(
        IBEP20 _lp,
        IBEP20 _rewardToken,
        uint256 _rewardPerSecond,
        uint256 _startTimestamp,
        uint256 _bonusEndTimestamp,
        address _adminAddress,
        address _wbnb
    ) public {
        rewardToken = _rewardToken;
        rewardPerSecond = _rewardPerSecond;
        startTimestamp = _startTimestamp;
        bonusEndTimestamp = _bonusEndTimestamp;
        adminAddress = _adminAddress;
        WBNB = _wbnb;

        // staking pool
        poolInfo.push(PoolInfo({
            lpToken: _lp,
            allocPoint: 1000,
            lastRewardTimestamp: startTimestamp,
            accCakePerShare: 0
        }));

        totalAllocPoint = 1000;

    }

    modifier onlyAdmin() {
        require(msg.sender == adminAddress, "admin: wut?");
        _;
    }

    receive() external payable {
        assert(msg.sender == WBNB); // only accept BNB via fallback from the WBNB contract
    }

    // Update admin address by the previous dev.
    function setAdmin(address _adminAddress) public onlyOwner {
        adminAddress = _adminAddress;
    }

    function setBlackList(address _blacklistAddress) public onlyAdmin {
        userInfo[_blacklistAddress].inBlackList = true;
    }

    function removeBlackList(address _blacklistAddress) public onlyAdmin {
        userInfo[_blacklistAddress].inBlackList = false;
    }

    // Set the limit amount. Can only be called by the owner.
    function setLimitAmount(uint256 _amount) public onlyOwner {
        limitAmount = _amount;
    }

    // Return reward multiplier over the given _from to _to block.
    function getMultiplier(uint256 _from, uint256 _to) public view returns (uint256) {
        if (_to <= bonusEndTimestamp) {
            return _to.sub(_from);
        } else if (_from >= bonusEndTimestamp) {
            return 0;
        } else {
            return bonusEndTimestamp.sub(_from);
        }
    }

    // View function to see pending Reward on frontend.
    function pendingReward(address _user) external view returns (uint256) {
        PoolInfo storage pool = poolInfo[0];
        UserInfo storage user = userInfo[_user];
        uint256 accCakePerShare = pool.accCakePerShare;
        uint256 lpSupply = pool.lpToken.balanceOf(address(this));
        if (block.timestamp > pool.lastRewardTimestamp && lpSupply != 0) {
            uint256 multiplier = getMultiplier(pool.lastRewardTimestamp, block.timestamp);
            uint256 cakeReward = multiplier.mul(rewardPerSecond).mul(pool.allocPoint).div(totalAllocPoint);
            accCakePerShare = accCakePerShare.add(cakeReward.mul(1e12).div(lpSupply));
        }
        return user.amount.mul(accCakePerShare).div(1e12).sub(user.rewardDebt);
    }

    // Update reward variables of the given pool to be up-to-date.
    function updatePool(uint256 _pid) public {
        PoolInfo storage pool = poolInfo[_pid];
        if (block.timestamp <= pool.lastRewardTimestamp) {
            return;
        }
        uint256 lpSupply = pool.lpToken.balanceOf(address(this));
        if (lpSupply == 0) {
            pool.lastRewardTimestamp = block.timestamp;
            return;
        }
        uint256 multiplier = getMultiplier(pool.lastRewardTimestamp, block.timestamp);
        uint256 cakeReward = multiplier.mul(rewardPerSecond).mul(pool.allocPoint).div(totalAllocPoint);
        pool.accCakePerShare = pool.accCakePerShare.add(cakeReward.mul(1e12).div(lpSupply));
        pool.lastRewardTimestamp = block.timestamp;
    }

    // Update reward variables for all pools. Be careful of gas spending!
    function massUpdatePools() public {
        uint256 length = poolInfo.length;
        for (uint256 pid = 0; pid < length; ++pid) {
            updatePool(pid);
        }
    }


    // Stake tokens to SmartChef
    function deposit() public payable {
        PoolInfo storage pool = poolInfo[0];
        UserInfo storage user = userInfo[msg.sender];

        require (user.amount.add(msg.value) <= limitAmount, 'exceed the top');
        require (!user.inBlackList, 'in black list');

        updatePool(0);
        if (user.amount > 0) {
            uint256 pending = user.amount.mul(pool.accCakePerShare).div(1e12).sub(user.rewardDebt);
            if(pending > 0) {
                rewardToken.safeTransfer(address(msg.sender), pending);
            }
        }
        if(msg.value > 0) {
            IWBNB(WBNB).deposit{value: msg.value}();
            assert(IWBNB(WBNB).transfer(address(this), msg.value));
            user.amount = user.amount.add(msg.value);
        }
        user.rewardDebt = user.amount.mul(pool.accCakePerShare).div(1e12);

        emit Deposit(msg.sender, msg.value);
    }

    function safeTransferBNB(address to, uint256 value) internal {
        (bool success, ) = to.call{gas: 23000, value: value}("");
        // (bool success,) = to.call{value:value}(new bytes(0));
        require(success, 'TransferHelper: ETH_TRANSFER_FAILED');
    }

    // Withdraw tokens from STAKING.
    function withdraw(uint256 _amount) public {
        PoolInfo storage pool = poolInfo[0];
        UserInfo storage user = userInfo[msg.sender];
        require(user.amount >= _amount, "withdraw: not good");
        updatePool(0);
        uint256 pending = user.amount.mul(pool.accCakePerShare).div(1e12).sub(user.rewardDebt);
        if(pending > 0 && !user.inBlackList) {
            rewardToken.safeTransfer(address(msg.sender), pending);
        }
        if(_amount > 0) {
            user.amount = user.amount.sub(_amount);
            IWBNB(WBNB).withdraw(_amount);
            safeTransferBNB(address(msg.sender), _amount);
        }
        user.rewardDebt = user.amount.mul(pool.accCakePerShare).div(1e12);

        emit Withdraw(msg.sender, _amount);
    }

    // Withdraw without caring about rewards. EMERGENCY ONLY.
    function emergencyWithdraw() public {
        PoolInfo storage pool = poolInfo[0];
        UserInfo storage user = userInfo[msg.sender];
        pool.lpToken.safeTransfer(address(msg.sender), user.amount);
        emit EmergencyWithdraw(msg.sender, user.amount);
        user.amount = 0;
        user.rewardDebt = 0;
    }

    // Withdraw reward. EMERGENCY ONLY.
    function emergencyRewardWithdraw(uint256 _amount) public onlyOwner {
        require(_amount < rewardToken.balanceOf(address(this)), 'not enough token');
        rewardToken.safeTransfer(address(msg.sender), _amount);
    }

}


// File contracts/utils/ReentrancyGuard.sol

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() internal {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and make it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;

        _;

        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}


// File contracts/WAGStakingPoolInitializable.sol

pragma solidity ^0.8.0;




contract WAGStakingPoolInitializable is Ownable, ReentrancyGuard {
    using SafeMath for uint256;
    using SafeBEP20 for IBEP20;

    // The address of the smart chef factory
    address public SOUS_CHEF_FACTORY;

    // Whether a limit is set for users
    bool public hasUserLimit;

    // Whether it is initialized
    bool public isInitialized;

    // Accrued token per share
    uint256 public accTokenPerShare;

    // The block number when WAGYU mining ends.
    uint256 public bonusEndTimestamp;

    // The block number when WAGYU mining starts.
    uint256 public startTimestamp;

    // The block number of the last pool update
    uint256 public lastRewardTimestamp;

    // The pool limit (0 if none)
    uint256 public poolLimitPerUser;

    // WAGYU tokens created per block.
    uint256 public rewardPerSecond;

    // The precision factor
    uint256 public PRECISION_FACTOR;

    // The reward token
    IBEP20 public rewardToken;

    // The staked token
    IBEP20 public stakedToken;

    // Info of each user that stakes tokens (stakedToken)
    mapping(address => UserInfo) public userInfo;

    struct UserInfo {
        uint256 amount; // How many staked tokens the user has provided
        uint256 rewardDebt; // Reward debt
    }

    event AdminTokenRecovery(address tokenRecovered, uint256 amount);
    event Deposit(address indexed user, uint256 amount);
    event EmergencyWithdraw(address indexed user, uint256 amount);
    event NewStartAndEndBlocks(uint256 startTimestamp, uint256 endBlock);
    event NewrewardPerSecond(uint256 rewardPerSecond);
    event NewPoolLimit(uint256 poolLimitPerUser);
    event RewardsStop(uint256 blockNumber);
    event Withdraw(address indexed user, uint256 amount);

    constructor() public {
        SOUS_CHEF_FACTORY = msg.sender;
    }

    /*
     * @notice Initialize the contract
     * @param _stakedToken: staked token address
     * @param _rewardToken: reward token address
     * @param _rewardPerSecond: reward per block (in rewardToken)
     * @param _startTimestamp: start block
     * @param _bonusEndTimestamp: end block
     * @param _poolLimitPerUser: pool limit per user in stakedToken (if any, else 0)
     * @param _admin: admin address with ownership
     */
    function initialize(
        IBEP20 _stakedToken,
        IBEP20 _rewardToken,
        uint256 _rewardPerSecond,
        uint256 _startTimestamp,
        uint256 _bonusEndTimestamp,
        uint256 _poolLimitPerUser,
        address _admin
    ) external {
        require(!isInitialized, "Already initialized");
        require(msg.sender == SOUS_CHEF_FACTORY, "Not factory");

        // Make this contract initialized
        isInitialized = true;

        stakedToken = _stakedToken;
        rewardToken = _rewardToken;
        rewardPerSecond = _rewardPerSecond;
        startTimestamp = _startTimestamp;
        bonusEndTimestamp = _bonusEndTimestamp;

        if (_poolLimitPerUser > 0) {
            hasUserLimit = true;
            poolLimitPerUser = _poolLimitPerUser;
        }

        uint256 decimalsRewardToken = uint256(rewardToken.decimals());
        require(decimalsRewardToken < 30, "Must be inferior to 30");

        PRECISION_FACTOR = uint256(10**(uint256(30).sub(decimalsRewardToken)));

        // Set the lastRewardTimestamp as the startTimestamp
        lastRewardTimestamp = startTimestamp;

        // Transfer ownership to the admin address who becomes owner of the contract
        transferOwnership(_admin);
    }

    /*
     * @notice Deposit staked tokens and collect reward tokens (if any)
     * @param _amount: amount to withdraw (in rewardToken)
     */
    function deposit(uint256 _amount) external nonReentrant {
        UserInfo storage user = userInfo[msg.sender];

        if (hasUserLimit) {
            require(_amount.add(user.amount) <= poolLimitPerUser, "User amount above limit");
        }

        _updatePool();

        if (user.amount > 0) {
            uint256 pending = user.amount.mul(accTokenPerShare).div(PRECISION_FACTOR).sub(user.rewardDebt);
            if (pending > 0) {
                rewardToken.safeTransfer(address(msg.sender), pending);
            }
        }

        if (_amount > 0) {
            user.amount = user.amount.add(_amount);
            stakedToken.safeTransferFrom(address(msg.sender), address(this), _amount);
        }

        user.rewardDebt = user.amount.mul(accTokenPerShare).div(PRECISION_FACTOR);

        emit Deposit(msg.sender, _amount);
    }

    /*
     * @notice Withdraw staked tokens and collect reward tokens
     * @param _amount: amount to withdraw (in rewardToken)
     */
    function withdraw(uint256 _amount) external nonReentrant {
        UserInfo storage user = userInfo[msg.sender];
        require(user.amount >= _amount, "Amount to withdraw too high");

        _updatePool();

        uint256 pending = user.amount.mul(accTokenPerShare).div(PRECISION_FACTOR).sub(user.rewardDebt);

        if (_amount > 0) {
            user.amount = user.amount.sub(_amount);
            stakedToken.safeTransfer(address(msg.sender), _amount);
        }

        if (pending > 0) {
            rewardToken.safeTransfer(address(msg.sender), pending);
        }

        user.rewardDebt = user.amount.mul(accTokenPerShare).div(PRECISION_FACTOR);

        emit Withdraw(msg.sender, _amount);
    }

    /*
     * @notice Withdraw staked tokens without caring about rewards rewards
     * @dev Needs to be for emergency.
     */
    function emergencyWithdraw() external nonReentrant {
        UserInfo storage user = userInfo[msg.sender];
        uint256 amountToTransfer = user.amount;
        user.amount = 0;
        user.rewardDebt = 0;

        if (amountToTransfer > 0) {
            stakedToken.safeTransfer(address(msg.sender), amountToTransfer);
        }

        emit EmergencyWithdraw(msg.sender, user.amount);
    }

    /*
     * @notice Stop rewards
     * @dev Only callable by owner. Needs to be for emergency.
     */
    function emergencyRewardWithdraw(uint256 _amount) external onlyOwner {
        rewardToken.safeTransfer(address(msg.sender), _amount);
    }

    /**
     * @notice It allows the admin to recover wrong tokens sent to the contract
     * @param _tokenAddress: the address of the token to withdraw
     * @param _tokenAmount: the number of tokens to withdraw
     * @dev This function is only callable by admin.
     */
    function recoverWrongTokens(address _tokenAddress, uint256 _tokenAmount) external onlyOwner {
        require(_tokenAddress != address(stakedToken), "Cannot be staked token");
        require(_tokenAddress != address(rewardToken), "Cannot be reward token");

        IBEP20(_tokenAddress).safeTransfer(address(msg.sender), _tokenAmount);

        emit AdminTokenRecovery(_tokenAddress, _tokenAmount);
    }

    /*
     * @notice Stop rewards
     * @dev Only callable by owner
     */
    function stopReward() external onlyOwner {
        bonusEndTimestamp = block.timestamp;
    }

    /*
     * @notice Update pool limit per user
     * @dev Only callable by owner.
     * @param _hasUserLimit: whether the limit remains forced
     * @param _poolLimitPerUser: new pool limit per user
     */
    function updatePoolLimitPerUser(bool _hasUserLimit, uint256 _poolLimitPerUser) external onlyOwner {
        require(hasUserLimit, "Must be set");
        if (_hasUserLimit) {
            require(_poolLimitPerUser > poolLimitPerUser, "New limit must be higher");
            poolLimitPerUser = _poolLimitPerUser;
        } else {
            hasUserLimit = _hasUserLimit;
            poolLimitPerUser = 0;
        }
        emit NewPoolLimit(poolLimitPerUser);
    }

    /*
     * @notice Update reward per block
     * @dev Only callable by owner.
     * @param _rewardPerSecond: the reward per block
     */
    function updaterewardPerSecond(uint256 _rewardPerSecond) external onlyOwner {
        require(block.timestamp < startTimestamp, "Pool has started");
        rewardPerSecond = _rewardPerSecond;
        emit NewrewardPerSecond(_rewardPerSecond);
    }

    /**
     * @notice It allows the admin to update start and end blocks
     * @dev This function is only callable by owner.
     * @param _startTimestamp: the new start block
     * @param _bonusEndTimestamp: the new end block
     */
    function updateStartAndEndBlocks(uint256 _startTimestamp, uint256 _bonusEndTimestamp) external onlyOwner {
        require(block.timestamp < startTimestamp, "Pool has started");
        require(_startTimestamp < _bonusEndTimestamp, "New startTimestamp must be lower than new endBlock");
        require(block.timestamp < _startTimestamp, "New startTimestamp must be higher than current block");

        startTimestamp = _startTimestamp;
        bonusEndTimestamp = _bonusEndTimestamp;

        // Set the lastRewardTimestamp as the startTimestamp
        lastRewardTimestamp = startTimestamp;

        emit NewStartAndEndBlocks(_startTimestamp, _bonusEndTimestamp);
    }

    /*
     * @notice View function to see pending reward on frontend.
     * @param _user: user address
     * @return Pending reward for a given user
     */
    function pendingReward(address _user) external view returns (uint256) {
        UserInfo storage user = userInfo[_user];
        uint256 stakedTokenSupply = stakedToken.balanceOf(address(this));
        if (block.timestamp > lastRewardTimestamp && stakedTokenSupply != 0) {
            uint256 multiplier = _getMultiplier(lastRewardTimestamp, block.timestamp);
            uint256 wagyuReward = multiplier.mul(rewardPerSecond);
            uint256 adjustedTokenPerShare =
            accTokenPerShare.add(wagyuReward.mul(PRECISION_FACTOR).div(stakedTokenSupply));
            return user.amount.mul(adjustedTokenPerShare).div(PRECISION_FACTOR).sub(user.rewardDebt);
        } else {
            return user.amount.mul(accTokenPerShare).div(PRECISION_FACTOR).sub(user.rewardDebt);
        }
    }

    /*
     * @notice Update reward variables of the given pool to be up-to-date.
     */
    function _updatePool() internal {
        if (block.timestamp <= lastRewardTimestamp) {
            return;
        }

        uint256 stakedTokenSupply = stakedToken.balanceOf(address(this));

        if (stakedTokenSupply == 0) {
            lastRewardTimestamp = block.timestamp;
            return;
        }

        uint256 multiplier = _getMultiplier(lastRewardTimestamp, block.timestamp);
        uint256 wagyuReward = multiplier.mul(rewardPerSecond);
        accTokenPerShare = accTokenPerShare.add(wagyuReward.mul(PRECISION_FACTOR).div(stakedTokenSupply));
        lastRewardTimestamp = block.timestamp;
    }

    /*
     * @notice Return reward multiplier over the given _from to _to block.
     * @param _from: block to start
     * @param _to: block to finish
     */
    function _getMultiplier(uint256 _from, uint256 _to) internal view returns (uint256) {
        if (_to <= bonusEndTimestamp) {
            return _to.sub(_from);
        } else if (_from >= bonusEndTimestamp) {
            return 0;
        } else {
            return bonusEndTimestamp.sub(_from);
        }
    }
}


// File contracts/WAGStakingFactory.sol

pragma solidity ^0.8.0;

contract WAGStakingFactory is Ownable {
    event NewSousChefContract(address indexed sousChef);
    address[] public poolAddresses;

    constructor() public {
        //
    }

    /*
     * @notice Deploy the pool
     * @param _stakedToken: staked token address
     * @param _rewardToken: reward token address
     * @param _rewardPerSecond: reward per block (in rewardToken)
     * @param _startTimestamp: start block
     * @param _endBlock: end block
     * @param _poolLimitPerUser: pool limit per user in stakedToken (if any, else 0)
     * @param _admin: admin address with ownership
     * @return address of new smart chef contract
     */
    function deployPool(
        IBEP20 _stakedToken,
        IBEP20 _rewardToken,
        uint256 _rewardPerSecond,
        uint256 _startTimestamp,
        uint256 _bonusEndTimestamp,
        uint256 _poolLimitPerUser,
        address _admin
    ) external onlyOwner {
        require(_stakedToken.totalSupply() >= 0);
        require(_rewardToken.totalSupply() >= 0);
        require(_stakedToken != _rewardToken, "Tokens must be be different");

        bytes memory bytecode = type(WAGStakingPoolInitializable).creationCode;
        bytes32 salt = keccak256(abi.encodePacked(_stakedToken, _rewardToken, _startTimestamp));
        address sousChefAddress;

        assembly {
            sousChefAddress := create2(0, add(bytecode, 32), mload(bytecode), salt)
        }

        WAGStakingPoolInitializable(sousChefAddress).initialize(
            _stakedToken,
            _rewardToken,
            _rewardPerSecond,
            _startTimestamp,
            _bonusEndTimestamp,
            _poolLimitPerUser,
            _admin
        );

        poolAddresses.push(sousChefAddress);

        emit NewSousChefContract(sousChefAddress);
    }
}


// File contracts/WAGStakingPool.sol

pragma solidity 0.8.0;



// import "@nomiclabs/buidler/console.sol";

// SousChef is the chef of new tokens. He can make yummy food and he is a fair guy as well as WAGFarm.
contract WAGStakingPool {
    using SafeMath for uint256;
    using SafeBEP20 for IBEP20;

    // Info of each user.
    struct UserInfo {
        uint256 amount;   // How many SYRUP tokens the user has provided.
        uint256 rewardDebt;  // Reward debt. See explanation below.
        uint256 rewardPending;
        //
        // We do some fancy math here. Basically, any point in time, the amount of SYRUPs
        // entitled to a user but is pending to be distributed is:
        //
        //   pending reward = (user.amount * pool.accRewardPerShare) - user.rewardDebt + user.rewardPending
        //
        // Whenever a user deposits or withdraws SYRUP tokens to a pool. Here's what happens:
        //   1. The pool's `accRewardPerShare` (and `lastRewardTimestamp`) gets updated.
        //   2. User receives the pending reward sent to his/her address.
        //   3. User's `amount` gets updated.
        //   3. User's `amount` gets updated.
        //   4. User's `rewardDebt` gets updated.
    }

    // Info of Pool
    struct PoolInfo {
        uint256 lastRewardTimestamp;  // Last block number that Rewards distribution occurs.
        uint256 accRewardPerShare; // Accumulated reward per share, times 1e12. See below.
    }

    // The SYRUP TOKEN!
    IBEP20 public syrup;
    // rewards created per block.
    uint256 public rewardPerSecond;

    // Info.
    PoolInfo public poolInfo;
    // Info of each user that stakes Syrup tokens.
    mapping (address => UserInfo) public userInfo;

    // addresses list
    address[] public addressList;

    // The block number when mining starts.
    uint256 public startTimestamp;
    // The block number when mining ends.
    uint256 public bonusEndTimestamp;

    event Deposit(address indexed user, uint256 amount);
    event Withdraw(address indexed user, uint256 amount);
    event EmergencyWithdraw(address indexed user, uint256 amount);

    constructor(
        IBEP20 _syrup,
        uint256 _rewardPerSecond,
        uint256 _startTimestamp,
        uint256 _endTimestamp
    ) public {
        syrup = _syrup;
        rewardPerSecond = _rewardPerSecond;
        startTimestamp = _startTimestamp;
        bonusEndTimestamp = _endTimestamp;

        // staking pool
        poolInfo = PoolInfo({
            lastRewardTimestamp: startTimestamp,
            accRewardPerShare: 0
        });
    }

    function addressLength() external view returns (uint256) {
        return addressList.length;
    }

    // Return reward multiplier over the given _from to _to block.
    function getMultiplier(uint256 _from, uint256 _to) internal view returns (uint256) {
        if (_to <= bonusEndTimestamp) {
            return _to.sub(_from);
        } else if (_from >= bonusEndTimestamp) {
            return 0;
        } else {
            return bonusEndTimestamp.sub(_from);
        }
    }

    // View function to see pending Tokens on frontend.
    function pendingReward(address _user) external view returns (uint256) {
        PoolInfo storage pool = poolInfo;
        UserInfo storage user = userInfo[_user];
        uint256 accRewardPerShare = pool.accRewardPerShare;
        uint256 stakedSupply = syrup.balanceOf(address(this));
        if (block.timestamp > pool.lastRewardTimestamp && stakedSupply != 0) {
            uint256 multiplier = getMultiplier(pool.lastRewardTimestamp, block.timestamp);
            uint256 tokenReward = multiplier.mul(rewardPerSecond);
            accRewardPerShare = accRewardPerShare.add(tokenReward.mul(1e12).div(stakedSupply));
        }
        return user.amount.mul(accRewardPerShare).div(1e12).sub(user.rewardDebt).add(user.rewardPending);
    }

    // Update reward variables of the given pool to be up-to-date.
    function updatePool() public {
        if (block.timestamp <= poolInfo.lastRewardTimestamp) {
            return;
        }
        uint256 syrupSupply = syrup.balanceOf(address(this));
        if (syrupSupply == 0) {
            poolInfo.lastRewardTimestamp = block.timestamp;
            return;
        }
        uint256 multiplier = getMultiplier(poolInfo.lastRewardTimestamp, block.timestamp);
        uint256 tokenReward = multiplier.mul(rewardPerSecond);

        poolInfo.accRewardPerShare = poolInfo.accRewardPerShare.add(tokenReward.mul(1e12).div(syrupSupply));
        poolInfo.lastRewardTimestamp = block.timestamp;
    }


    // Deposit Syrup tokens to SousChef for Reward allocation.
    function deposit(uint256 _amount) public {
        require (_amount > 0, 'amount 0');
        UserInfo storage user = userInfo[msg.sender];
        updatePool();
        syrup.safeTransferFrom(address(msg.sender), address(this), _amount);
        // The deposit behavior before farming will result in duplicate addresses, and thus we will manually remove them when airdropping.
        if (user.amount == 0 && user.rewardPending == 0 && user.rewardDebt == 0) {
            addressList.push(address(msg.sender));
        }
        user.rewardPending = user.amount.mul(poolInfo.accRewardPerShare).div(1e12).sub(user.rewardDebt).add(user.rewardPending);
        user.amount = user.amount.add(_amount);
        user.rewardDebt = user.amount.mul(poolInfo.accRewardPerShare).div(1e12);

        emit Deposit(msg.sender, _amount);
    }

    // Withdraw Syrup tokens from SousChef.
    function withdraw(uint256 _amount) public {
        require (_amount > 0, 'amount 0');
        UserInfo storage user = userInfo[msg.sender];
        require(user.amount >= _amount, "withdraw: not enough");

        updatePool();
        syrup.safeTransfer(address(msg.sender), _amount);

        user.rewardPending = user.amount.mul(poolInfo.accRewardPerShare).div(1e12).sub(user.rewardDebt).add(user.rewardPending);
        user.amount = user.amount.sub(_amount);
        user.rewardDebt = user.amount.mul(poolInfo.accRewardPerShare).div(1e12);

        emit Withdraw(msg.sender, _amount);
    }

    // Withdraw without caring about rewards. EMERGENCY ONLY.
    function emergencyWithdraw() public {
        UserInfo storage user = userInfo[msg.sender];
        syrup.safeTransfer(address(msg.sender), user.amount);
        emit EmergencyWithdraw(msg.sender, user.amount);
        user.amount = 0;
        user.rewardDebt = 0;
        user.rewardPending = 0;
    }

}


// File contracts/libs/Migrations.sol

pragma solidity >=0.4.25;

contract Migrations {
  address public owner;
  uint public last_completed_migration;

  modifier restricted() {
    if (msg.sender == owner) _;
  }

  constructor() public {
    owner = msg.sender;
  }

  function setCompleted(uint completed) public restricted {
    last_completed_migration = completed;
  }
}


// File contracts/libs/Multicall.sol

pragma solidity >=0.5.0;
pragma experimental ABIEncoderV2;

/// @title Multicall - Aggregate results from multiple read-only function calls
/// @author Michael Elliot <mike@makerdao.com>
/// @author Joshua Levine <joshua@makerdao.com>
/// @author Nick Johnson <arachnid@notdot.net>

contract Multicall {
    struct Call {
        address target;
        bytes callData;
    }
    function aggregate(Call[] memory calls) public returns (uint256 blockNumber, bytes[] memory returnData) {
        blockNumber = block.number;
        returnData = new bytes[](calls.length);
        for(uint256 i = 0; i < calls.length; i++) {
            (bool success, bytes memory ret) = calls[i].target.call(calls[i].callData);
            require(success);
            returnData[i] = ret;
        }
    }
    // Helper functions
    function getEthBalance(address addr) public view returns (uint256 balance) {
        balance = addr.balance;
    }
    function getBlockHash(uint256 blockNumber) public view returns (bytes32 blockHash) {
        blockHash = blockhash(blockNumber);
    }
    function getLastBlockHash() public view returns (bytes32 blockHash) {
        blockHash = blockhash(block.number - 1);
    }
    function getCurrentBlockTimestamp() public view returns (uint256 timestamp) {
        timestamp = block.timestamp;
    }
    function getCurrentBlockDifficulty() public view returns (uint256 difficulty) {
        difficulty = block.difficulty;
    }
    function getCurrentBlockGasLimit() public view returns (uint256 gaslimit) {
        gaslimit = block.gaslimit;
    }
    function getCurrentBlockCoinbase() public view returns (address coinbase) {
        coinbase = block.coinbase;
    }
}


// File contracts/libs/Multicall2.sol

/**
 *Submitted for verification at BscScan.com on 2021-05-05
*/

pragma solidity >=0.8.0;
pragma experimental ABIEncoderV2;


/// @title Multicall2 - Aggregate results from multiple read-only function calls
/// @author Michael Elliot <mike@makerdao.com>
/// @author Joshua Levine <joshua@makerdao.com>
/// @author Nick Johnson <arachnid@notdot.net>

contract Multicall2 {
    struct Call {
        address target;
        bytes callData;
    }
    struct Result {
        bool success;
        bytes returnData;
    }

    function aggregate(Call[] memory calls) public returns (uint256 blockNumber, bytes[] memory returnData) {
        blockNumber = block.number;
        returnData = new bytes[](calls.length);
        for(uint256 i = 0; i < calls.length; i++) {
            (bool success, bytes memory ret) = calls[i].target.call(calls[i].callData);
            require(success, "Multicall aggregate: call failed");
            returnData[i] = ret;
        }
    }
    function blockAndAggregate(Call[] memory calls) public returns (uint256 blockNumber, bytes32 blockHash, Result[] memory returnData) {
        (blockNumber, blockHash, returnData) = tryBlockAndAggregate(true, calls);
    }
    function getBlockHash(uint256 blockNumber) public view returns (bytes32 blockHash) {
        blockHash = blockhash(blockNumber);
    }
    function getBlockNumber() public view returns (uint256 blockNumber) {
        blockNumber = block.number;
    }
    function getCurrentBlockCoinbase() public view returns (address coinbase) {
        coinbase = block.coinbase;
    }
    function getCurrentBlockDifficulty() public view returns (uint256 difficulty) {
        difficulty = block.difficulty;
    }
    function getCurrentBlockGasLimit() public view returns (uint256 gaslimit) {
        gaslimit = block.gaslimit;
    }
    function getCurrentBlockTimestamp() public view returns (uint256 timestamp) {
        timestamp = block.timestamp;
    }
    function getEthBalance(address addr) public view returns (uint256 balance) {
        balance = addr.balance;
    }
    function getLastBlockHash() public view returns (bytes32 blockHash) {
        blockHash = blockhash(block.number - 1);
    }
    function tryAggregate(bool requireSuccess, Call[] memory calls) public returns (Result[] memory returnData) {
        returnData = new Result[](calls.length);
        for(uint256 i = 0; i < calls.length; i++) {
            (bool success, bytes memory ret) = calls[i].target.call(calls[i].callData);

            if (requireSuccess) {
                require(success, "Multicall2 aggregate: call failed");
            }

            returnData[i] = Result(success, ret);
        }
    }
    function tryBlockAndAggregate(bool requireSuccess, Call[] memory calls) public returns (uint256 blockNumber, bytes32 blockHash, Result[] memory returnData) {
        blockNumber = block.number;
        blockHash = blockhash(block.number);
        returnData = tryAggregate(requireSuccess, calls);
    }
}


// File contracts/libs/PancakeVoteProxy.sol

pragma solidity 0.8.0;

interface IBEP20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the token decimals.
     */
    function decimals() external view returns (uint8);

    /**
     * @dev Returns the token symbol.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the token name.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the bep token owner.
     */
    function getOwner() external view returns (address);

    /**
     * @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);
}


contract PancakeVoterProxy {
    // SYRUP
    address public constant votes = 0x009cF7bC57584b7998236eff51b98A168DceA9B0;

    function decimals() external pure returns (uint8) {
        return uint8(18);
    }

    function name() external pure returns (string memory) {
        return 'SYRUPVOTE';
    }

    function symbol() external pure returns (string memory) {
        return 'SYRUP';
    }

    function totalSupply() external view returns (uint256) {
        return IBEP20(votes).totalSupply();
    }

    function balanceOf(address _voter) external view returns (uint256) {
        return IBEP20(votes).balanceOf(_voter);
    }

    constructor() public {}
}


// File contracts/utils/Create2.sol

pragma solidity >=0.5.16;

/**
 * @dev Helper to make usage of the `CREATE2` EVM opcode easier and safer.
 * `CREATE2` can be used to compute in advance the address where a smart
 * contract will be deployed, which allows for interesting new mechanisms known
 * as 'counterfactual interactions'.
 *
 * See the https://eips.ethereum.org/EIPS/eip-1014#motivation[EIP] for more
 * information.
 */
library Create2 {
    /**
     * @dev Deploys a contract using `CREATE2`. The address where the contract
     * will be deployed can be known in advance via {computeAddress}.
     *
     * The bytecode for a contract can be obtained from Solidity with
     * `type(contractName).creationCode`.
     *
     * Requirements:
     *
     * - `bytecode` must not be empty.
     * - `salt` must have not been used for `bytecode` already.
     * - the factory must have a balance of at least `amount`.
     * - if `amount` is non-zero, `bytecode` must have a `payable` constructor.
     */
    function deploy(
        uint256 amount,
        bytes32 salt,
        bytes memory bytecode
    ) internal returns (address) {
        address addr;
        require(address(this).balance >= amount, 'Create2: insufficient balance');
        require(bytecode.length != 0, 'Create2: bytecode length is zero');
        // solhint-disable-next-line no-inline-assembly
        assembly {
            addr := create2(amount, add(bytecode, 0x20), mload(bytecode), salt)
        }
        require(addr != address(0), 'Create2: Failed on deploy');
        return addr;
    }

    /**
     * @dev Returns the address where a contract will be stored if deployed via {deploy}. Any change in the
     * `bytecodeHash` or `salt` will result in a new destination address.
     */
    function computeAddress(bytes32 salt, bytes32 bytecodeHash) internal view returns (address) {
        return computeAddress(salt, bytecodeHash, address(this));
    }

    /**
     * @dev Returns the address where a contract will be stored if deployed via {deploy} from a contract located at
     * `deployer`. If `deployer` is this contract's address, returns the same value as {computeAddress}.
     */
    function computeAddress(
        bytes32 salt,
        bytes32 bytecodeHash,
        address deployer
    ) internal pure returns (address) {
        bytes32 _data = keccak256(abi.encodePacked(bytes1(0xff), deployer, salt, bytecodeHash));
        return address(uint160(uint256(_data)));
    }
}


// File contracts/utils/EnumerableSet.sol

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.0.0, only sets of type `address` (`AddressSet`) and `uint256`
 * (`UintSet`) are supported.
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

    struct Set {
        // Storage of set values
        bytes32[] _values;
        // Position of the value in the `values` array, plus 1 because index 0
        // means a value is not in the set.
        mapping(bytes32 => uint256) _indexes;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function _add(Set storage set, bytes32 value) private returns (bool) {
        if (!_contains(set, value)) {
            set._values.push(value);
            // The value is stored at length-1, but we add 1 to all indexes
            // and use 0 as a sentinel value
            set._indexes[value] = set._values.length;
            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function _remove(Set storage set, bytes32 value) private returns (bool) {
        // We read and store the value's index to prevent multiple reads from the same storage slot
        uint256 valueIndex = set._indexes[value];

        if (valueIndex != 0) {
            // Equivalent to contains(set, value)
            // To delete an element from the _values array in O(1), we swap the element to delete with the last one in
            // the array, and then remove the last element (sometimes called as 'swap and pop').
            // This modifies the order of the array, as noted in {at}.

            uint256 toDeleteIndex = valueIndex - 1;
            uint256 lastIndex = set._values.length - 1;

            // When the value to delete is the last one, the swap operation is unnecessary. However, since this occurs
            // so rarely, we still do the swap anyway to avoid the gas cost of adding an 'if' statement.

            bytes32 lastvalue = set._values[lastIndex];

            // Move the last value to the index where the value to delete is
            set._values[toDeleteIndex] = lastvalue;
            // Update the index for the moved value
            set._indexes[lastvalue] = toDeleteIndex + 1;
            // All indexes are 1-based

            // Delete the slot where the moved value was stored
            set._values.pop();

            // Delete the index for the deleted slot
            delete set._indexes[value];

            return true;
        } else {
            return false;
        }
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function _contains(Set storage set, bytes32 value) private view returns (bool) {
        return set._indexes[value] != 0;
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function _length(Set storage set) private view returns (uint256) {
        return set._values.length;
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function _at(Set storage set, uint256 index) private view returns (bytes32) {
        require(set._values.length > index, 'EnumerableSet: index out of bounds');
        return set._values[index];
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(AddressSet storage set, address value) internal returns (bool) {
        return _add(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(AddressSet storage set, address value) internal returns (bool) {
        return _remove(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(AddressSet storage set, address value) internal view returns (bool) {
        return _contains(set._inner, bytes32(uint256(uint160(value))));
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(AddressSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(AddressSet storage set, uint256 index) internal view returns (address) {
        return address(uint160(uint256(_at(set._inner, index))));
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(UintSet storage set, uint256 value) internal returns (bool) {
        return _add(set._inner, bytes32(value));
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(UintSet storage set, uint256 value) internal returns (bool) {
        return _remove(set._inner, bytes32(value));
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(UintSet storage set, uint256 value) internal view returns (bool) {
        return _contains(set._inner, bytes32(value));
    }

    /**
     * @dev Returns the number of values on the set. O(1).
     */
    function length(UintSet storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(UintSet storage set, uint256 index) internal view returns (uint256) {
        return uint256(_at(set._inner, index));
    }
}


// File contracts/utils/TransferHelper.sol

pragma solidity >=0.8.0;

// helper methods for interacting with BEP20 tokens and sending ETH that do not consistently return true/false
library TransferHelper {
    function safeApprove(
        address token,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('approve(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x095ea7b3, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: APPROVE_FAILED');
    }

    function safeTransfer(
        address token,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('transfer(address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0xa9059cbb, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FAILED');
    }

    function safeTransferFrom(
        address token,
        address from,
        address to,
        uint256 value
    ) internal {
        // bytes4(keccak256(bytes('transferFrom(address,address,uint256)')));
        (bool success, bytes memory data) = token.call(abi.encodeWithSelector(0x23b872dd, from, to, value));
        require(success && (data.length == 0 || abi.decode(data, (bool))), 'TransferHelper: TRANSFER_FROM_FAILED');
    }

    function safeTransferBNB(address to, uint256 value) internal {
        (bool success, ) = to.call{value: value}(new bytes(0));
        require(success, 'TransferHelper: BNB_TRANSFER_FAILED');
    }
}


// File contracts/WVLX.sol

pragma solidity ^0.8.0;

contract WVLX {
    string public name     = "Wrapped VLX";
    string public symbol   = "WVLX";
    uint8  public decimals = 18;

    event  Approval(address indexed src, address indexed guy, uint wad);
    event  Transfer(address indexed src, address indexed dst, uint wad);
    event  Deposit(address indexed dst, uint wad);
    event  Withdrawal(address indexed src, uint wad);

    mapping (address => uint)                       public  balanceOf;
    mapping (address => mapping (address => uint))  public  allowance;

    uint constant UINT_MAX = 2**256 - 1;

    fallback() external payable {
        deposit();
    }
    function deposit() public payable {
        balanceOf[msg.sender] += msg.value;
        emit Deposit(msg.sender, msg.value);
    }
    function withdraw(uint wad) public {
        require(balanceOf[msg.sender] >= wad);
        balanceOf[msg.sender] -= wad;

        payable(msg.sender).transfer(wad);
        emit Withdrawal(msg.sender, wad);
    }

    function totalSupply() public view returns (uint) {
        return address(this).balance;
    }

    function approve(address guy, uint wad) public returns (bool) {
        allowance[msg.sender][guy] = wad;
        emit Approval(msg.sender, guy, wad);
        return true;
    }

    function transfer(address dst, uint wad) public returns (bool) {
        return transferFrom(msg.sender, dst, wad);
    }

    function transferFrom(address src, address dst, uint wad)
    public
    returns (bool)
    {
        require(balanceOf[src] >= wad);

        if (src != msg.sender && allowance[src][msg.sender] != UINT_MAX) {
            require(allowance[src][msg.sender] >= wad);
            allowance[src][msg.sender] -= wad;
        }

        balanceOf[src] -= wad;
        balanceOf[dst] += wad;

        emit Transfer(src, dst, wad);

        return true;
    }
}