// File: @openzeppelin/contracts-0.8/access/Ownable.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

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

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

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

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

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

// File: @openzeppelin/contracts-0.8/token/ERC20/ERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

/**
 * @dev Implementation of the {IERC20} 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 {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * 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 {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

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

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-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 virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * 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 virtual override returns (bool) {
        _transfer(sender, recipient, amount);

        uint256 currentAllowance = _allowances[sender][_msgSender()];
        require(currentAllowance >= amount, "ERC20: transfer amount exceeds allowance");
        unchecked {
            _approve(sender, _msgSender(), currentAllowance - amount);
        }

        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 {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender] + 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 {IERC20-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 virtual returns (bool) {
        uint256 currentAllowance = _allowances[_msgSender()][spender];
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(_msgSender(), spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `sender` to `recipient`.
     *
     * This 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 virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        uint256 senderBalance = _balances[sender];
        require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[sender] = senderBalance - amount;
        }
        _balances[recipient] += amount;

        emit Transfer(sender, recipient, amount);

        _afterTokenTransfer(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:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        _balances[account] += amount;
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(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 virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
        }
        _totalSupply -= amount;

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This 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 virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

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

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}

// File: @openzeppelin/contracts-0.8/token/ERC20/extensions/IERC20Metadata.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

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

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

// File: @openzeppelin/contracts-0.8/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

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

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

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

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

// File: @openzeppelin/contracts-0.8/token/ERC20/utils/SafeERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 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 SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 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
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 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'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _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(IERC20 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, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// File: @openzeppelin/contracts-0.8/utils/Address.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)

pragma solidity ^0.8.0;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize, which returns 0 for contracts in
        // construction, since the code is only stored at the end of the
        // constructor execution.

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

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// File: @openzeppelin/contracts-0.8/utils/Context.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// File: contracts/Interfaces.sol



// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

import "@openzeppelin/contracts-0.8/token/ERC20/IERC20.sol";

interface IWomDepositor {
    function deposit(uint256 _amount, address _stakeAddress) external returns (bool);
}

interface IWETH {
    function deposit() external payable;
    function withdraw(uint wad) external;
}

interface IAsset is IERC20 {
    function underlyingToken() external view returns (address);

    function pool() external view returns (address);

    function cash() external view returns (uint120);

    function liability() external view returns (uint120);

    function decimals() external view returns (uint8);

    function underlyingTokenDecimals() external view returns (uint8);

    function setPool(address pool_) external;

    function underlyingTokenBalance() external view returns (uint256);

    function transferUnderlyingToken(address to, uint256 amount) external;

    function mint(address to, uint256 amount) external;

    function burn(address to, uint256 amount) external;

    function addCash(uint256 amount) external;

    function removeCash(uint256 amount) external;

    function addLiability(uint256 amount) external;

    function removeLiability(uint256 amount) external;
}

interface IWmxLocker {
    struct EarnedData {
        address token;
        uint256 amount;
    }
    struct LockedBalance {
        uint112 amount;
        uint32 unlockTime;
    }

    function lock(address _account, uint256 _amount) external;

    function checkpointEpoch() external;

    function epochCount() external view returns (uint256);

    function balanceAtEpochOf(uint256 _epoch, address _user) external view returns (uint256 amount);

    function totalSupplyAtEpoch(uint256 _epoch) external view returns (uint256 supply);

    function queueNewRewards(address _rewardsToken, uint256 reward) external;

    function getReward(address _account, bool _stake) external;

    function getReward(address _account) external;

    function balanceOf(address _account) external view returns (uint256 amount);

    function balances(address _account) external view returns (uint112 locked, uint32 nextUnlockIndex);

    function claimableRewards(address _account) external view returns (EarnedData[] memory userRewards);

    function getVotes(address account) external view returns (uint256);

    function getPastVotes(address account, uint256 timestamp) external view returns (uint256 votes);

    function lockedBalances(address _user) external view returns (
        uint256 total,
        uint256 unlockable,
        uint256 locked,
        LockedBalance[] memory lockData
    );

    function addReward(address _rewardsToken, address _distributor) external;

    function approveRewardDistributor(
        address _rewardsToken,
        address _distributor,
        bool _approved
    ) external;

    function modifyBlacklist(address _account, bool _blacklisted) external;

    function setKickIncentive(uint256 _rate, uint256 _delay) external;

    function shutdown() external;

    function recoverERC20(address _tokenAddress, uint256 _tokenAmount) external;
}

interface IOwnable {
    function transferOwnership(address _newOwner) external;
}

interface IRewardsManager {
    function onNewRewardToken(address _token) external;
}

interface IWmxLockerExt {
    struct LockerRewardData {
        uint32 periodFinish;
        uint32 lastUpdateTime;
        uint96 rewardRate;
        uint96 rewardPerTokenStored;
    }

    function rewardData(address token) external view returns (LockerRewardData memory);
}

interface IBribeVoter {
    function vote(IERC20[] calldata _lpVote, int256[] calldata _deltas) external returns (uint256[][] memory bribeRewards);
    function votes(address _user, address _lpToken) external view returns (uint256);
    function infos(address _lpToken) external view returns (uint104 supplyBaseIndex, uint104 supplyVoteIndex, uint40 nextEpochStartTime, uint128 claimable, bool whitelist, address gaugeManager, address bribe);
    function weights(address _lpToken) external view returns (uint128 allocPoint, uint128 voteWeight);
    function getUserVotes(address _user, address _lpToken) external view returns (uint256);
}

interface IMasterWombatRewarder {
    function rewardTokens() external view returns (address[] memory tokens);
}

interface IExtraRewardsDistributor {
    function addReward(address _token, uint256 _amount) external;
}

interface IWomDepositorWrapper {
    function getMinOut(uint256, uint256) external view returns (uint256);

    function deposit(
        uint256,
        uint256,
        bool,
        address _stakeAddress
    ) external;
}

interface ITokenFactory{
    function CreateDepositToken(address) external returns(address);
    function CreateBribesVotingToken() external returns(address);
}

interface IBribesRewardFactory {
    function CreateBribesRewards(address _stakingToken, address _lptoken, bool _callOperatorOnGetReward) external returns (address);
}

interface IRewards{
    function asset() external returns(address);
    function stake(address, uint256) external;
    function stakeFor(address, uint256) external;
    function withdraw(address, uint256) external;
    function withdraw(uint256 assets, address receiver, address owner) external;
    function exit(address) external;
    function getReward(address) external;
    function queueNewRewards(address, uint256) external;
    function notifyRewardAmount(uint256) external;
    function addExtraReward(address) external;
    function extraRewardsLength() external view returns (uint256);
    function stakingToken() external view returns (address);
    function rewardToken() external view returns(address);
    function earned(address _token, address _account) external view returns (uint256);
    function updateOperatorData(address operator_, uint256 pid_) external;
    function setRewardTokenPaused(address token_, bool paused_) external;
    function balanceOf(address _account) external view returns (uint256 amount);
    function rewardTokensList() external view returns (address[] memory);
    function tokenRewards(address _token) external view returns (address token, uint256 periodFinish, uint256 rewardRate, uint256 lastUpdateTime, uint256 rewardPerTokenStored, uint256 queuedRewards, uint256 currentRewards, uint256 historicalRewards, bool paused);
}

interface IGauge {
    function notifyRewardAmount(IERC20 token, uint256 amount) external;
}

interface IBribe {
    function onVote(
        address user,
        uint256 newVote,
        uint256 originalTotalVotes
    ) external returns (uint256[] memory rewards);

    function pendingTokens(address _user) external view returns (uint256[] memory rewards);

    function rewardTokens() external view returns (IERC20[] memory tokens);

    function rewardLength() external view returns (uint256);

    function rewardInfo(uint256 i) external view returns (IERC20 rewardToken, uint96 tokenPerSec, uint128 accTokenPerShare, uint128 distributedAmount);
}

interface IVe {
    function vote(address user, int256 voteDelta) external;
}

interface INftLocker {
    function voteBoost(address _account) external view returns (uint256);
}

interface IBribeRewardsPool is IRewards {
    function withdrawAndUnwrapFrom(address _from, uint256 _amount, address _claimRecipient) external returns(bool);
    function updateBribesConfig(bool _callOperatorOnGetReward) external;
    function updateRatioConfig(uint256 _duration, uint256 _maxRewardRatio) external;
}

interface ITokenMinter is IERC20 {
    function mint(address,uint256) external;
    function burn(address,uint256) external;
    function setOperator(address) external;
    function updateOperator(address) external;
    function getFactAmounMint(uint256 _amount) external view returns(uint256 amount);
}

interface IStaker{
    function deposit(address, address) external returns (bool);
    function withdraw(address) external returns (uint256);
    function withdrawLp(address, address, uint256) external returns (bool);
    function withdrawAllLp(address, address) external returns (bool);
    function lock(uint256 _lockDays) external;
    function releaseLock(uint256 _slot) external returns(uint256);
    function getGaugeRewardTokens(address _lptoken, address _gauge) external returns (address[] memory tokens);
    function claimCrv(address, uint256) external returns (address[] memory tokens, uint256[] memory balances);
    function balanceOfPool(address, address) external view returns (uint256);
    function lpTokenToPid(address, address) external view returns (uint256);
    function operator() external view returns (address);
    function depositor() external view returns (address);
    function wom() external view returns (address);
    function veWom() external view returns (address);
    function execute(address _to, uint256 _value, bytes calldata _data) external returns (bool, bytes memory);
    function setVote(bytes32 hash, bool valid) external;
    function setDepositor(address _depositor) external;
    function setOwner(address _owner) external;
}

interface IPool {
    function deposit(
        address token,
        uint256 amount,
        uint256 minimumLiquidity,
        address to,
        uint256 deadline,
        bool shouldStake
    ) external returns (uint256);

    function withdraw(
        address token,
        uint256 liquidity,
        uint256 minimumAmount,
        address to,
        uint256 deadline
    ) external returns (uint256 amount);

    function quotePotentialSwap(
        address fromToken,
        address toToken,
        int256 fromAmount
    ) external view returns (uint256 potentialOutcome, uint256 haircut);

    function quotePotentialDeposit(
        address token,
        uint256 amount
    ) external view returns (uint256 liquidity, uint256 reward);

    function quotePotentialWithdraw(
        address token,
        uint256 liquidity
    ) external view returns (uint256 amount, uint256 fee);

    function quotePotentialWithdrawFromOtherAsset(
        address fromToken,
        address toToken,
        uint256 liquidity
    ) external view virtual returns (uint256 amount, uint256 withdrewAmount);

    function withdrawFromOtherAsset(
        address fromToken,
        address toToken,
        uint256 liquidity,
        uint256 minimumAmount,
        address to,
        uint256 deadline
    ) external returns (uint256 amount);

    function swap(
        address fromToken,
        address toToken,
        uint256 fromAmount,
        uint256 minimumToAmount,
        address to,
        uint256 deadline
    ) external returns (uint256 actualToAmount, uint256 haircut);

    function quoteAmountIn(
        address fromToken,
        address toToken,
        int256 toAmount
    ) external view returns (uint256 amountIn, uint256 haircut);

    function addressOfAsset(address token) external view returns (address);

    function getTokens() external view returns (address[] memory);
}

interface IWombatRouter {
    function getAmountOut(
        address[] calldata tokenPath,
        address[] calldata poolPath,
        int256 amountIn
    ) external view returns (uint256 amountOut, uint256[] memory haircuts);

    /**
     * @notice Returns the minimum input asset amount required to buy the given output asset amount
     * (accounting for fees and slippage)
     * Note: This function should be used as estimation only. The actual swap amount might
     * be different due to precision error (the error is typically under 1e-6)
     */
    function getAmountIn(
        address[] calldata tokenPath,
        address[] calldata poolPath,
        uint256 amountOut
    ) external view returns (uint256 amountIn, uint256[] memory haircuts);

    function swapExactTokensForTokens(
        address[] calldata tokenPath,
        address[] calldata poolPath,
        uint256 fromAmount,
        uint256 minimumToAmount,
        address to,
        uint256 deadline
    ) external returns (uint256 amountOut);

    function swapExactNativeForTokens(
        address[] calldata tokenPath, // the first address should be WBNB
        address[] calldata poolPath,
        uint256 minimumamountOut,
        address to,
        uint256 deadline
    ) external payable returns (uint256 amountOut);

    function swapExactTokensForNative(
        address[] calldata tokenPath, // the last address should be WBNB
        address[] calldata poolPath,
        uint256 amountIn,
        uint256 minimumamountOut,
        address to,
        uint256 deadline
    ) external returns (uint256 amountOut);

    function addLiquidityNative(
        IPool pool,
        uint256 minimumLiquidity,
        address to,
        uint256 deadline,
        bool shouldStake
    ) external payable returns (uint256 liquidity);

    function removeLiquidityNative(
        IPool pool,
        uint256 liquidity,
        uint256 minimumAmount,
        address to,
        uint256 deadline
    ) external returns (uint256 amount);

    function removeLiquidityFromOtherAssetAsNative(
        IPool pool,
        address fromToken,
        uint256 liquidity,
        uint256 minimumAmount,
        address to,
        uint256 deadline
    ) external returns (uint256 amount);
}

interface IBooster {
    struct PoolInfo {
        address lptoken;
        address token;
        address gauge;
        address crvRewards;
        bool shutdown;
    }

    function crv() external view returns (address);
    function cvx() external view returns (address);
    function owner() external view returns (address);
    function voterProxy() external view returns (address);
    function earmarkDelegate() external view returns (address);
    function poolLength() external view returns (uint256);
    function poolInfo(uint256 _pid) external view returns (PoolInfo memory);
    function depositFor(uint256 _pid, uint256 _amount, bool _stake, address _receiver) external returns (bool);
    function setOwner(address _owner) external;
    function setPoolManager(address _poolManager) external;
    function voterProxyClaimRewards(uint256 _pid, address[] memory pendingTokens) external returns (uint256[] memory pendingRewards);
    function addPool(address _lptoken, address _gauge) external returns (uint256);
    function addCreatedPool(address _lptoken, address _gauge, address _token, address _crvRewards) external returns (uint256);
    function approveDistribution(address _distro, address[] memory _distributionTokens, uint256 _amount) external;
    function approvePoolsCrvRewardsDistribution(address _token) external;
    function distributeRewards(uint256 _pid, address _lpToken, address _rewardToken, address[] memory _transferTo, uint256[] memory _transferAmount, bool[] memory _callQueue) external;
    function lpPendingRewards(address _lptoken, address _token) external view returns (uint256);
    function earmarkRewards(uint256 _pid) external;
    function earmarkRewardsIfAvailable(uint256 _pid) external;
    function shutdownPool(uint256 _pid) external returns (bool);
    function forceShutdownPool(uint256 _pid) external returns (bool);
    function gaugeMigrate(address _newGauge, uint256[] memory migratePids) external;
    function voteExecute(address _voting, uint256 _value, bytes calldata _data) external returns (bytes memory);
    function setVotingValid(address _voting, bool _value) external;
    function mintRatio() external view returns (uint256);
    function customMintRatio(uint256 _pid) external view returns (uint256);
    function crvLockRewards() external view returns (address);
    function cvxLocker() external view returns (address);
    function minterMint(address _address, uint256 _amount) external returns(bool);
}

interface IBoosterEarmark {
    function earmarkIncentive() external view returns (uint256);
    function distributionByTokenLength(address _token) external view returns (uint256);
    function distributionByTokens(address, uint256) external view returns (address, uint256, bool);
    function distributionTokenList() external view returns (address[] memory);
    function addPool(address _lptoken, address _gauge) external returns (uint256);
    function addCreatedPool(address _lptoken, address _gauge, address _token, address _crvRewards) external returns (uint256);
    function isEarmarkAvailable(uint256 _pid) external view returns(bool);
    function isEarmarkPoolAvailable(uint256 _pid, IBooster.PoolInfo memory _pool) external view returns (bool);
    function earmarkRewards(uint256[] memory _pids) external;
    function earmarkPeriod() external view returns (uint256);
    function lastEarmarkAt(uint256 pid) external view returns (uint256);
    function getEarmarkPoolExecuteOn(uint256 pid) external view returns (uint256);
    function getEarmarkPoolExecuteOn(uint256 _pid, IBooster.PoolInfo calldata _pool) external view returns (uint256);
    function updateDistributionByTokens(
        address _token,
        address[] memory _distros,
        uint256[] memory _shares,
        bool[] memory _callQueue
    ) external;
}

interface ISwapRouter {
    function swapExactTokensForTokens(
        address[] calldata tokenPath,
        address[] calldata poolPath,
        uint256 amountIn,
        uint256 minimumamountOut,
        address to,
        uint256 deadline
    ) external returns (uint256 amountOut);

    function getAmountOut(
        address[] calldata tokenPath,
        address[] calldata poolPath,
        int256 amountIn
    ) external view returns (uint256 amountOut, uint256[] memory haircuts);
}

interface IWomSwapDepositor {
    function pool() external view returns (address);
    function deposit(uint256 _amount, address _stakeAddress, uint256 _minAmountOut, uint256 _deadline) external returns (bool);
}

/**
 * @dev Interface of the MasterWombatV2
 */
interface IMasterWombatV2 {
    function getAssetPid(address asset) external view returns (uint256 pid);

    function poolLength() external view returns (uint256);

    function pendingTokens(uint256 _pid, address _user)
    external
    view
    returns (
        uint256 pendingRewards,
        IERC20[] memory bonusTokenAddresses,
        string[] memory bonusTokenSymbols,
        uint256[] memory pendingBonusRewards
    );

    function rewarderBonusTokenInfo(uint256 _pid)
    external
    view
    returns (IERC20[] memory bonusTokenAddresses, string[] memory bonusTokenSymbols);

    function massUpdatePools() external;

    function updatePool(uint256 _pid) external;

    function deposit(uint256 _pid, uint256 _amount) external returns (uint256, uint256[] memory);

    function multiClaim(uint256[] memory _pids)
    external
    returns (
        uint256 transfered,
        uint256[] memory rewards,
        uint256[][] memory additionalRewards
    );

    function withdraw(uint256 _pid, uint256 _amount) external returns (uint256, uint256[] memory);

    function emergencyWithdraw(uint256 _pid) external;

    function migrate(uint256[] calldata _pids) external;

    function depositFor(
        uint256 _pid,
        uint256 _amount,
        address _user
    ) external;

    function updateFactor(address _user, uint256 _newVeWomBalance) external;

    function poolInfo(uint256 _pid) external view returns (address lpToken, uint96 allocPoint, IMasterWombatRewarder rewarder, uint256 sumOfFactors, uint104 accWomPerShare, uint104 accWomPerFactorShare, uint40 lastRewardTimestamp);
}

interface IMasterWombatV3 {
    struct PoolInfoV3 {
        address lpToken; // Address of LP token contract.
        ////
        address rewarder;
        uint40 periodFinish;
        ////
        uint128 sumOfFactors; // 20.18 fixed point. the sum of all boosted factors by all of the users in the pool
        uint128 rewardRate; // 20.18 fixed point.
        ////
        uint104 accWomPerShare; // 19.12 fixed point. Accumulated WOM per share, times 1e12.
        uint104 accWomPerFactorShare; // 19.12 fixed point. Accumulated WOM per factor share
        uint40 lastRewardTimestamp;
    }

    function poolInfoV3(uint256 _index) external view returns (PoolInfoV3 memory);

    // Info of each user.
    struct UserInfo {
        // storage slot 1
        uint128 amount; // 20.18 fixed point. How many LP tokens the user has provided.
        uint128 factor; // 20.18 fixed point. boosted factor = sqrt (lpAmount * veWom.balanceOf())
        // storage slot 2
        uint128 rewardDebt; // 20.18 fixed point. Reward debt. See explanation below.
        uint128 pendingWom; // 20.18 fixed point. Amount of pending wom
    }
    function userInfo(uint256 _pid, address _user) external view returns (UserInfo memory);
}

// File: contracts/PoolDepositor.sol



// SPDX-License-Identifier: MIT
pragma solidity 0.8.11;

import "./Interfaces.sol";
import "@openzeppelin/contracts-0.8/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts-0.8/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts-0.8/utils/Address.sol";
import "@openzeppelin/contracts-0.8/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts-0.8/access/Ownable.sol";
import "@openzeppelin/contracts-0.8/utils/Address.sol";

/**
 * @title   PoolDepositor
 * @author  WombexFinance
 * @notice  Allows to deposit underlying tokens and wrap them in lp tokens
 */
contract PoolDepositor is Ownable {
    using SafeERC20 for IERC20;
    using Address for address payable;

    struct ApprovePool {
        address pool;
        address[] tokens;
    }

    address public weth;
    address public booster;
    address public voterProxy;
    address public masterWombat;
    mapping (address => uint256) public lpTokenToPid;

    /**
     * @param _weth             WETH
     * @param _booster          Booster
     * @param _masterWombat     MasterWombat
     */
    constructor(address _weth, address _booster, address _masterWombat) public Ownable() {
        weth =  _weth;
        booster =  _booster;
        voterProxy = IBooster(_booster).voterProxy();
        masterWombat = _masterWombat;
    }

    function updateBooster() public onlyOwner {
        booster = IStaker(voterProxy).operator();
    }

    /**
     * @notice Approve spending of router tokens by pool
     * @dev Needs to be done after asset deployment for router to be able to support the tokens
     */
    function approveSpendingMultiplePools(uint256[] calldata pids) public onlyOwner {
        for (uint256 i; i < pids.length; i++) {
            IBooster.PoolInfo memory p = IBooster(booster).poolInfo(pids[i]);
            uint256 wmPid = IStaker(voterProxy).lpTokenToPid(p.gauge, p.lptoken);

            address[] memory tokens = new address[](2);
            tokens[0] = p.lptoken;
            tokens[1] = IAsset(p.lptoken).underlyingToken();

            address[] memory boosterTokens = new address[](1);
            boosterTokens[0] = p.lptoken;

            approveSpendingByPool(tokens, IAsset(p.lptoken).pool());
            approveSpendingByPool(boosterTokens, booster);
        }
    }

    /**
     * @notice Approve spending of router tokens by pool
     * @dev Needs to be done after asset deployment for router to be able to support the tokens
     * @param tokens    array of tokens to be approved
     * @param pool      to be approved to spend
     */
    function approveSpendingByPool(address[] memory tokens, address pool) public onlyOwner {
        for (uint256 i; i < tokens.length; i++) {
            if (IERC20(tokens[i]).allowance(address(this), pool) != 0) {
                IERC20(tokens[i]).safeApprove(pool, 0);
            }
            IERC20(tokens[i]).safeApprove(pool, type(uint256).max);
        }
    }

    /**
     * @notice Approve spending of router tokens by pool and booster
     * @dev Needs to be done after asset deployment for router to be able to support the tokens
     * @param tokens    array of tokens to be approved
     * @param pool      to be approved to spend
     */
    function approveSpendingByPoolAndBooster(address[] memory tokens, address pool) public onlyOwner {
        approveSpendingByPool(tokens, pool);
        approveSpendingByPool(tokens, booster);
    }

    function resqueTokens(address[] calldata _tokens, address _recipient) external onlyOwner {
        for (uint256 i; i < _tokens.length; i++) {
            IERC20(_tokens[i]).safeTransfer(_recipient, IERC20(_tokens[i]).balanceOf(address(this)));
        }
    }

    function resqueNative(address payable _recipient) external onlyOwner {
        _recipient.sendValue(address(this).balance);
    }

    function setBoosterLpTokensPid() external {
        uint256 poolLength = IBooster(booster).poolLength();

        for (uint256 i = 0; i < poolLength; i++) {
            IBooster.PoolInfo memory p = IBooster(booster).poolInfo(i);
            lpTokenToPid[p.lptoken] = i;
        }
    }

    receive() external payable {}

    function depositNative(address _lptoken, uint256 _minLiquidity, uint256 _deadline, bool _stake) external payable {
        uint256 amount = msg.value;
        IWETH(weth).deposit{value: amount}();
        _deposit(_lptoken, weth, amount, _minLiquidity, _deadline, _stake);
    }

    function withdrawNative(address _lptoken, address _underlying, uint256 _amount, uint256 _minOut, uint256 _deadline, address payable _recipient) external {
        uint256 wethBalanceBefore = IERC20(weth).balanceOf(address(this));
        _withdraw(_lptoken, _underlying, _amount, _minOut, _deadline, address(this));
        uint256 wethAmount = IERC20(weth).balanceOf(address(this)) - wethBalanceBefore;

        IWETH(weth).withdraw(wethAmount);
        _recipient.sendValue(wethAmount);
    }

    function deposit(address _lptoken, uint256 _amount, uint256 _minLiquidity, uint256 _deadline, bool _stake) public {
        address underlying = IAsset(_lptoken).underlyingToken();
        IERC20(underlying).safeTransferFrom(msg.sender, address(this), _amount);
        _deposit(_lptoken, underlying, _amount, _minLiquidity, _deadline, _stake);
    }

    function _deposit(address _lptoken, address _underlying, uint256 _amount, uint256 _minLiquidity, uint256 _deadline, bool _stake) internal {
        address pool = IAsset(_lptoken).pool();
        uint256 balanceBefore = IERC20(_lptoken).balanceOf(address(this));
        IPool(pool).deposit(_underlying, _amount, _minLiquidity, address(this), _deadline, false);
        uint256 resultLpAmount = IERC20(_lptoken).balanceOf(address(this)) - balanceBefore;

        IBooster(booster).depositFor(lpTokenToPid[_lptoken], resultLpAmount, _stake, msg.sender);
    }

    function withdraw(address _lptoken, uint256 _amount, uint256 _minOut, uint256 _deadline, address _recipient) public {
        _withdraw(_lptoken, IAsset(_lptoken).underlyingToken(), _amount, _minOut, _deadline, _recipient);
    }

    function withdrawFromOtherAsset(address _lptoken, address _underlying, uint256 _amount, uint256 _minOut, uint256 _deadline, address _recipient) public {
        _withdraw(_lptoken, _underlying, _amount, _minOut, _deadline, _recipient);
    }

    function _withdraw(address _lptoken, address _underlying, uint256 _amount, uint256 _minOut, uint256 _deadline, address _recipient) internal {
        IRewards(getLpTokenCrvRewards(_lptoken)).withdraw(_amount, address(this), msg.sender);

        address pool = IAsset(_lptoken).pool();
        address lpTokenUnderlying = IAsset(_lptoken).underlyingToken();
        if (lpTokenUnderlying == _underlying) {
            IPool(pool).withdraw(_underlying, _amount, _minOut, _recipient, _deadline);
        } else {
            IPool(pool).withdrawFromOtherAsset(lpTokenUnderlying, _underlying, _amount, _minOut, _recipient, _deadline);
        }
    }

    function getLpTokenCrvRewards(address _lptoken) public view returns(address) {
        IBooster.PoolInfo memory p = IBooster(booster).poolInfo(lpTokenToPid[_lptoken]);
        return p.crvRewards;
    }

    function getDepositAmountOut(
        address _lptoken,
        uint256 _amount
    ) external view returns (uint256 liquidity, uint256 reward) {
        reward = 0; // backward compatibility with clients
        address pool = IAsset(_lptoken).pool();
        address underlying = IAsset(_lptoken).underlyingToken();
        liquidity = staticCallAndGetUint(pool, abi.encodeWithSelector(IPool.quotePotentialDeposit.selector, underlying, _amount));
    }

    function getTokenDecimals(address _token) public view returns (uint8 decimals) {
        try ERC20(_token).decimals() returns (uint8 _decimals) {
            decimals = _decimals;
        } catch {
            decimals = uint8(18);
        }
    }

    function staticCallAndGetUint(address _contract, bytes memory _argsData) public view returns (uint256 amount){
        (bool success, bytes memory data) = _contract.staticcall(_argsData);
        require(success, "staticCallAndGetUint call failed");

        assembly {
            amount := mload(add(data, 32))
        }
    }

    function getWithdrawAmountOut(
        address _lptoken,
        address _tokenOut,
        uint256 _amount
    ) external view returns (uint256 amount, uint256 fee) {
        fee = 0; // backward compatibility with clients
        address pool = IAsset(_lptoken).pool();
        address lpTokenUnderlying = IAsset(_lptoken).underlyingToken();
        if (_tokenOut == lpTokenUnderlying) {
            amount = staticCallAndGetUint(pool, abi.encodeWithSelector(IPool.quotePotentialWithdraw.selector, lpTokenUnderlying, _amount));
        } else {
            amount = staticCallAndGetUint(pool, abi.encodeWithSelector(IPool.quotePotentialWithdrawFromOtherAsset.selector, lpTokenUnderlying, _tokenOut, _amount));
        }
    }
}