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// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "./utils/ReentrancyGuard.sol";
import "./utils/TokenHolder.sol";
import "./interfaces/external/IWETH.sol";
import "./interfaces/INativeTokenGateway.sol";
import "./interfaces/IDepositToken.sol";

error SenderIsNotGovernor();
error SenderIsNotNativeToken();
error UnregisteredPool();

/**
 * @title Helper contract to easily support native tokens (e.g. ETH/AVAX) as collateral
 */
contract NativeTokenGateway is ReentrancyGuard, TokenHolder, INativeTokenGateway {
    using SafeERC20 for IERC20;
    using SafeERC20 for IWETH;
    using SafeERC20 for IDepositToken;

    IPoolRegistry public immutable poolRegistry;
    IWETH public immutable nativeToken;

    modifier onlyGovernor() {
        if (poolRegistry.governor() != msg.sender) revert SenderIsNotGovernor();
        _;
    }

    constructor(IPoolRegistry poolRegistry_, IWETH nativeToken_) initializer {
        // Note: `NativeTokenGateway` isn't upgradable but extends `ReentrancyGuard` therefore we need to initialize it
        __ReentrancyGuard_init();
        poolRegistry = poolRegistry_;
        nativeToken = nativeToken_;
    }

    /**
     * @notice deposits NATIVE_TOKEN as collateral using native. A corresponding amount of the deposit token is minted.
     * @param pool_ The Pool contract
     */
    function deposit(IPool pool_) external payable override {
        if (!poolRegistry.isPoolRegistered(address(pool_))) revert UnregisteredPool();

        nativeToken.deposit{value: msg.value}();
        IDepositToken _depositToken = pool_.depositTokenOf(nativeToken);
        nativeToken.safeApprove(address(_depositToken), 0);
        nativeToken.safeApprove(address(_depositToken), msg.value);
        _depositToken.deposit(msg.value, msg.sender);
    }

    /**
     * @notice withdraws the NATIVE_TOKEN deposit of msg.sender.
     * @param pool_ The Pool contract
     * @param amount_ The amount of deposit tokens to withdraw and receive native ETH
     */
    function withdraw(IPool pool_, uint256 amount_) external override nonReentrant {
        if (!poolRegistry.isPoolRegistered(address(pool_))) revert UnregisteredPool();

        IDepositToken _depositToken = pool_.depositTokenOf(nativeToken);
        _depositToken.safeTransferFrom(msg.sender, address(this), amount_);
        (uint256 _withdrawn, ) = _depositToken.withdraw(amount_, address(this));
        nativeToken.withdraw(_withdrawn);
        Address.sendValue(payable(msg.sender), _withdrawn);
    }

    /// @inheritdoc TokenHolder
    // solhint-disable-next-line no-empty-blocks
    function _requireCanSweep() internal view override onlyGovernor {}

    /**
     * @dev Only `nativeToken` contract is allowed to transfer to here. Prevent other addresses to send coins to this contract.
     */
    receive() external payable override {
        if (msg.sender != address(nativeToken)) revert SenderIsNotNativeToken();
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.2;

import "../../../../../openzeppelin-upgradeable/utils/introspection/IERC165Upgradeable.sol";

/**
 * @dev Interface of the IOFT core standard
 */
interface IOFTCoreUpgradeable is IERC165Upgradeable {
    /**
     * @dev estimate send token `_tokenId` to (`_dstChainId`, `_toAddress`)
     * _dstChainId - L0 defined chain id to send tokens too
     * _toAddress - dynamic bytes array which contains the address to whom you are sending tokens to on the dstChain
     * _amount - amount of the tokens to transfer
     * _useZro - indicates to use zro to pay L0 fees
     * _adapterParam - flexible bytes array to indicate messaging adapter services in L0
     */
    function estimateSendFee(
        uint16 _dstChainId,
        bytes calldata _toAddress,
        uint _amount,
        bool _useZro,
        bytes calldata _adapterParams
    ) external view returns (uint nativeFee, uint zroFee);

    /**
     * @dev send `_amount` amount of token to (`_dstChainId`, `_toAddress`) from `_from`
     * `_from` the owner of token
     * `_dstChainId` the destination chain identifier
     * `_toAddress` can be any size depending on the `dstChainId`.
     * `_amount` the quantity of tokens in wei
     * `_refundAddress` the address LayerZero refunds if too much message fee is sent
     * `_zroPaymentAddress` set to address(0x0) if not paying in ZRO (LayerZero Token)
     * `_adapterParams` is a flexible bytes array to indicate messaging adapter services
     */
    function sendFrom(
        address _from,
        uint16 _dstChainId,
        bytes calldata _toAddress,
        uint _amount,
        address payable _refundAddress,
        address _zroPaymentAddress,
        bytes calldata _adapterParams
    ) external payable;

    /**
     * @dev returns the circulating amount of tokens on current chain
     */
    function circulatingSupply() external view returns (uint);

    /**
     * @dev returns the address of the ERC20 token
     */
    function token() external view returns (address);

    /**
     * @dev Emitted when `_amount` tokens are moved from the `_sender` to (`_dstChainId`, `_toAddress`)
     * `_nonce` is the outbound nonce
     */
    event SendToChain(uint16 indexed _dstChainId, address indexed _from, bytes _toAddress, uint _amount);

    /**
     * @dev Emitted when `_amount` tokens are received from `_srcChainId` into the `_toAddress` on the local chain.
     * `_nonce` is the inbound nonce.
     */
    event ReceiveFromChain(uint16 indexed _srcChainId, address indexed _to, uint _amount);

    event SetUseCustomAdapterParams(bool _useCustomAdapterParams);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

import "../IOFTCoreUpgradeable.sol";

/**
 * @dev Interface of the composable OFT core standard
 */
interface IComposableOFTCoreUpgradeable is IOFTCoreUpgradeable {
    function estimateSendAndCallFee(
        uint16 _dstChainId,
        bytes calldata _toAddress,
        uint _amount,
        bytes calldata _payload,
        uint64 _dstGasForCall,
        bool _useZro,
        bytes calldata _adapterParams
    ) external view returns (uint nativeFee, uint zroFee);

    function sendAndCall(
        address _from,
        uint16 _dstChainId,
        bytes calldata _toAddress,
        uint _amount,
        bytes calldata _payload,
        uint64 _dstGasForCall,
        address payable _refundAddress,
        address _zroPaymentAddress,
        bytes calldata _adapterParams
    ) external payable;

    function retryOFTReceived(
        uint16 _srcChainId,
        bytes calldata _srcAddress,
        uint64 _nonce,
        bytes calldata _from,
        address _to,
        uint _amount,
        bytes calldata _payload
    ) external;

    event CallOFTReceivedFailure(
        uint16 indexed _srcChainId,
        bytes _srcAddress,
        uint64 _nonce,
        bytes _from,
        address indexed _to,
        uint _amount,
        bytes _payload,
        bytes _reason
    );

    event CallOFTReceivedSuccess(uint16 indexed _srcChainId, bytes _srcAddress, uint64 _nonce, bytes32 _hash);

    event RetryOFTReceivedSuccess(bytes32 _messageHash);

    event NonContractAddress(address _address);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.5.0;

interface IOFTReceiverUpgradeable {
    /**
     * @dev Called by the OFT contract when tokens are received from source chain.
     * @param _srcChainId The chain id of the source chain.
     * @param _srcAddress The address of the OFT token contract on the source chain.
     * @param _nonce The nonce of the transaction on the source chain.
     * @param _from The address of the account who calls the sendAndCall() on the source chain.
     * @param _amount The amount of tokens to transfer.
     * @param _payload Additional data with no specified format.
     */
    function onOFTReceived(
        uint16 _srcChainId,
        bytes calldata _srcAddress,
        uint64 _nonce,
        bytes calldata _from,
        uint _amount,
        bytes calldata _payload
    ) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.2;

import "../../utils/AddressUpgradeable.sol";

/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.
     */
    modifier initializer() {
        bool isTopLevelCall = _setInitializedVersion(1);
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original
     * initialization step. This is essential to configure modules that are added through upgrades and that require
     * initialization.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     */
    modifier reinitializer(uint8 version) {
        bool isTopLevelCall = _setInitializedVersion(version);
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(version);
        }
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     */
    function _disableInitializers() internal virtual {
        _setInitializedVersion(type(uint8).max);
    }

    function _setInitializedVersion(uint8 version) private returns (bool) {
        // If the contract is initializing we ignore whether _initialized is set in order to support multiple
        // inheritance patterns, but we only do this in the context of a constructor, and for the lowest level
        // of initializers, because in other contexts the contract may have been reentered.
        if (_initializing) {
            require(
                version == 1 && !AddressUpgradeable.isContract(address(this)),
                "Initializable: contract is already initialized"
            );
            return false;
        } else {
            require(_initialized < version, "Initializable: contract is already initialized");
            _initialized = version;
            return true;
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library AddressUpgradeable {
    /**
     * @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
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 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 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);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165Upgradeable {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// SPDX-License-Identifier: MIT

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);
}

// SPDX-License-Identifier: MIT

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);
}

// SPDX-License-Identifier: MIT

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");
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @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
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 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);
            }
        }
    }
}

// SPDX-License-Identifier: BUSL-1.1

pragma solidity 0.8.9;

import "./IStargateRouter.sol";

interface IStargateComposer {
    function swap(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress,
        uint256 _amountLD,
        uint256 _minAmountLD,
        IStargateRouter.lzTxObj memory _lzTxParams,
        bytes calldata _to,
        bytes calldata _payload
    ) external payable;

    function factory() external view returns (address);

    function stargateBridge() external view returns (address);

    function stargateRouter() external view returns (IStargateRouter);

    function quoteLayerZeroFee(
        uint16 _dstChainId,
        uint8 _functionType,
        bytes calldata _toAddress,
        bytes calldata _transferAndCallPayload,
        IStargateRouter.lzTxObj memory _lzTxParams
    ) external view returns (uint256, uint256);

    function peers(uint16 _chainId) external view returns (address);
}

// SPDX-License-Identifier: BUSL-1.1

pragma solidity 0.8.9;

interface IStargateReceiver {
    function sgReceive(
        uint16 _chainId,
        bytes memory _srcAddress,
        uint256 _nonce,
        address _token,
        uint256 amountLD,
        bytes memory payload
    ) external;
}

// SPDX-License-Identifier: BUSL-1.1

pragma solidity 0.8.9;

interface IStargateRouter {
    struct lzTxObj {
        uint256 dstGasForCall;
        uint256 dstNativeAmount;
        bytes dstNativeAddr;
    }

    function addLiquidity(uint256 _poolId, uint256 _amountLD, address _to) external;

    function swap(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress,
        uint256 _amountLD,
        uint256 _minAmountLD,
        lzTxObj memory _lzTxParams,
        bytes calldata _to,
        bytes calldata _payload
    ) external payable;

    function redeemRemote(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress,
        uint256 _amountLP,
        uint256 _minAmountLD,
        bytes calldata _to,
        lzTxObj memory _lzTxParams
    ) external payable;

    function instantRedeemLocal(uint16 _srcPoolId, uint256 _amountLP, address _to) external returns (uint256);

    function redeemLocal(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress,
        uint256 _amountLP,
        bytes calldata _to,
        lzTxObj memory _lzTxParams
    ) external payable;

    function sendCredits(
        uint16 _dstChainId,
        uint256 _srcPoolId,
        uint256 _dstPoolId,
        address payable _refundAddress
    ) external payable;

    function quoteLayerZeroFee(
        uint16 _dstChainId,
        uint8 _functionType,
        bytes calldata _toAddress,
        bytes calldata _transferAndCallPayload,
        lzTxObj memory _lzTxParams
    ) external view returns (uint256, uint256);

    function clearCachedSwap(uint16 _srcChainId, bytes calldata _srcAddress, uint256 _nonce) external;

    function factory() external view returns (address);

    function bridge() external view returns (address);

    function cachedSwapLookup(
        uint16 _chainId_,
        bytes calldata _srcAddress,
        uint256 _nonce
    ) external view returns (address token, uint256 amountLD, address to, bytes memory payload);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "../dependencies/@layerzerolabs/solidity-examples/contracts-upgradeable/token/oft/composable/IOFTReceiverUpgradeable.sol";
import "../dependencies/stargate-protocol/interfaces/IStargateReceiver.sol";
import "../dependencies/stargate-protocol/interfaces/IStargateRouter.sol";
import "../dependencies/stargate-protocol/interfaces/IStargateComposer.sol";
import "./IProxyOFT.sol";

interface ICrossChainDispatcher is IStargateReceiver, IOFTReceiverUpgradeable {
    function crossChainDispatcherOf(uint16 chainId_) external view returns (address);

    function triggerFlashRepaySwap(
        uint256 id_,
        address payable account_,
        address tokenIn_,
        address tokenOut_,
        uint256 amountIn_,
        uint256 amountOutMin_,
        bytes calldata lzArgs_
    ) external payable;

    function triggerLeverageSwap(
        uint256 id_,
        address payable account_,
        address tokenIn_,
        address tokenOut_,
        uint256 amountIn_,
        uint256 amountOutMin,
        bytes calldata lzArgs_
    ) external payable;

    function isBridgingActive() external view returns (bool);

    function flashRepayCallbackTxGasLimit() external view returns (uint64);

    function flashRepaySwapTxGasLimit() external view returns (uint64);

    function leverageCallbackTxGasLimit() external view returns (uint64);

    function leverageSwapTxGasLimit() external view returns (uint64);

    function lzBaseGasLimit() external view returns (uint256);

    function stargateComposer() external view returns (IStargateComposer);

    function stargateSlippage() external view returns (uint256);

    function stargatePoolIdOf(address token_) external view returns (uint256);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "../dependencies/openzeppelin/token/ERC20/extensions/IERC20Metadata.sol";
import "./ISyntheticToken.sol";

interface IDebtToken is IERC20Metadata {
    function lastTimestampAccrued() external view returns (uint256);

    function isActive() external view returns (bool);

    function syntheticToken() external view returns (ISyntheticToken);

    function accrueInterest() external;

    function debtIndex() external returns (uint256 debtIndex_);

    function burn(address from_, uint256 amount_) external;

    function issue(uint256 amount_, address to_) external returns (uint256 _issued, uint256 _fee);

    function flashIssue(address to_, uint256 amount_) external returns (uint256 _issued, uint256 _fee);

    function mint(address to_, uint256 amount_) external;

    function repay(address onBehalfOf_, uint256 amount_) external returns (uint256 _repaid, uint256 _fee);

    function repayAll(address onBehalfOf_) external returns (uint256 _repaid, uint256 _fee);

    function quoteIssueIn(uint256 amountToIssue_) external view returns (uint256 _amount, uint256 _fee);

    function quoteIssueOut(uint256 amount_) external view returns (uint256 _amountToIssue, uint256 _fee);

    function quoteRepayIn(uint256 amountToRepay_) external view returns (uint256 _amount, uint256 _fee);

    function quoteRepayOut(uint256 amount_) external view returns (uint256 _amountToRepay, uint256 _fee);

    function updateMaxTotalSupply(uint256 newMaxTotalSupply_) external;

    function updateInterestRate(uint256 newInterestRate_) external;

    function maxTotalSupply() external view returns (uint256);

    function interestRate() external view returns (uint256);

    function interestRatePerSecond() external view returns (uint256);

    function toggleIsActive() external;
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "../dependencies/openzeppelin/token/ERC20/extensions/IERC20Metadata.sol";

interface IDepositToken is IERC20Metadata {
    function underlying() external view returns (IERC20);

    function collateralFactor() external view returns (uint256);

    function unlockedBalanceOf(address account_) external view returns (uint256);

    function lockedBalanceOf(address account_) external view returns (uint256);

    function flashWithdraw(address account_, uint256 amount_) external returns (uint256 _withdrawn, uint256 _fee);

    function deposit(uint256 amount_, address onBehalfOf_) external returns (uint256 _deposited, uint256 _fee);

    function quoteDepositIn(uint256 amountToDeposit_) external view returns (uint256 _amount, uint256 _fee);

    function quoteDepositOut(uint256 amount_) external view returns (uint256 _amountToDeposit, uint256 _fee);

    function quoteWithdrawIn(uint256 amountToWithdraw_) external view returns (uint256 _amount, uint256 _fee);

    function quoteWithdrawOut(uint256 amount_) external view returns (uint256 _amountToWithdraw, uint256 _fee);

    function withdraw(uint256 amount_, address to_) external returns (uint256 _withdrawn, uint256 _fee);

    function seize(address from_, address to_, uint256 amount_) external;

    function updateCollateralFactor(uint128 newCollateralFactor_) external;

    function isActive() external view returns (bool);

    function toggleIsActive() external;

    function maxTotalSupply() external view returns (uint256);

    function updateMaxTotalSupply(uint256 newMaxTotalSupply_) external;

    function withdrawFrom(address from_, uint256 amount_) external returns (uint256 _withdrawn, uint256 _fee);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

/**
 * @notice FeeProvider interface
 */
interface IFeeProvider {
    struct LiquidationFees {
        uint128 liquidatorIncentive;
        uint128 protocolFee;
    }

    function defaultSwapFee() external view returns (uint256);

    function depositFee() external view returns (uint256);

    function issueFee() external view returns (uint256);

    function liquidationFees() external view returns (uint128 liquidatorIncentive, uint128 protocolFee);

    function repayFee() external view returns (uint256);

    function swapFeeFor(address account_) external view returns (uint256);

    function withdrawFee() external view returns (uint256);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

/**
 * @notice Governable interface
 */
interface IGovernable {
    function governor() external view returns (address _governor);

    function transferGovernorship(address _proposedGovernor) external;
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "./IPool.sol";

/**
 * @notice Manageable interface
 */
interface IManageable {
    function pool() external view returns (IPool _pool);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "./IPool.sol";

interface INativeTokenGateway {
    function deposit(IPool pool_) external payable;

    function withdraw(IPool pool_, uint256 amount_) external;
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

interface IPauseable {
    function paused() external view returns (bool);

    function everythingStopped() external view returns (bool);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "./IDepositToken.sol";
import "./IDebtToken.sol";
import "./ITreasury.sol";
import "./IRewardsDistributor.sol";
import "./IPoolRegistry.sol";
import "./IFeeProvider.sol";
import "./ISmartFarmingManager.sol";
import "./external/ISwapper.sol";
import "../interfaces/IFeeProvider.sol";

/**
 * @notice Pool interface
 */
interface IPool is IPauseable, IGovernable {
    function debtFloorInUsd() external view returns (uint256);

    function feeCollector() external view returns (address);

    function feeProvider() external view returns (IFeeProvider);

    function maxLiquidable() external view returns (uint256);

    function doesSyntheticTokenExist(ISyntheticToken syntheticToken_) external view returns (bool);

    function doesDebtTokenExist(IDebtToken debtToken_) external view returns (bool);

    function doesDepositTokenExist(IDepositToken depositToken_) external view returns (bool);

    function depositTokenOf(IERC20 underlying_) external view returns (IDepositToken);

    function debtTokenOf(ISyntheticToken syntheticToken_) external view returns (IDebtToken);

    function getDepositTokens() external view returns (address[] memory);

    function getDebtTokens() external view returns (address[] memory);

    function getRewardsDistributors() external view returns (address[] memory);

    function debtOf(address account_) external view returns (uint256 _debtInUsd);

    function depositOf(address account_) external view returns (uint256 _depositInUsd, uint256 _issuableLimitInUsd);

    function debtPositionOf(
        address account_
    )
        external
        view
        returns (
            bool _isHealthy,
            uint256 _depositInUsd,
            uint256 _debtInUsd,
            uint256 _issuableLimitInUsd,
            uint256 _issuableInUsd
        );

    function liquidate(
        ISyntheticToken syntheticToken_,
        address account_,
        uint256 amountToRepay_,
        IDepositToken depositToken_
    ) external returns (uint256 _totalSeized, uint256 _toLiquidator, uint256 _fee);

    function quoteLiquidateIn(
        ISyntheticToken syntheticToken_,
        uint256 totalToSeized_,
        IDepositToken depositToken_
    ) external view returns (uint256 _amountToRepay, uint256 _toLiquidator, uint256 _fee);

    function quoteLiquidateMax(
        ISyntheticToken syntheticToken_,
        address account_,
        IDepositToken depositToken_
    ) external view returns (uint256 _maxAmountToRepay);

    function quoteLiquidateOut(
        ISyntheticToken syntheticToken_,
        uint256 amountToRepay_,
        IDepositToken depositToken_
    ) external view returns (uint256 _totalSeized, uint256 _toLiquidator, uint256 _fee);

    function quoteSwapIn(
        ISyntheticToken syntheticTokenIn_,
        ISyntheticToken syntheticTokenOut_,
        uint256 amountOut_
    ) external view returns (uint256 _amountIn, uint256 _fee);

    function quoteSwapOut(
        ISyntheticToken syntheticTokenIn_,
        ISyntheticToken syntheticTokenOut_,
        uint256 amountIn_
    ) external view returns (uint256 _amountOut, uint256 _fee);

    function swap(
        ISyntheticToken syntheticTokenIn_,
        ISyntheticToken syntheticTokenOut_,
        uint256 amountIn_
    ) external returns (uint256 _amountOut, uint256 _fee);

    function treasury() external view returns (ITreasury);

    function masterOracle() external view returns (IMasterOracle);

    function poolRegistry() external view returns (IPoolRegistry);

    function addToDepositTokensOfAccount(address account_) external;

    function removeFromDepositTokensOfAccount(address account_) external;

    function addToDebtTokensOfAccount(address account_) external;

    function removeFromDebtTokensOfAccount(address account_) external;

    function getDepositTokensOfAccount(address account_) external view returns (address[] memory);

    function getDebtTokensOfAccount(address account_) external view returns (address[] memory);

    function isSwapActive() external view returns (bool);

    function smartFarmingManager() external view returns (ISmartFarmingManager);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "./external/IMasterOracle.sol";
import "./IPauseable.sol";
import "./IGovernable.sol";
import "./ISyntheticToken.sol";
import "./external/ISwapper.sol";
import "./IQuoter.sol";
import "./ICrossChainDispatcher.sol";

interface IPoolRegistry is IPauseable, IGovernable {
    function feeCollector() external view returns (address);

    function isPoolRegistered(address pool_) external view returns (bool);

    function nativeTokenGateway() external view returns (address);

    function getPools() external view returns (address[] memory);

    function registerPool(address pool_) external;

    function unregisterPool(address pool_) external;

    function masterOracle() external view returns (IMasterOracle);

    function updateFeeCollector(address newFeeCollector_) external;

    function idOfPool(address pool_) external view returns (uint256);

    function nextPoolId() external view returns (uint256);

    function swapper() external view returns (ISwapper);

    function quoter() external view returns (IQuoter);

    function crossChainDispatcher() external view returns (ICrossChainDispatcher);

    function doesSyntheticTokenExist(ISyntheticToken syntheticToken_) external view returns (bool _exists);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "../dependencies/@layerzerolabs/solidity-examples/contracts-upgradeable/token/oft/composable/IComposableOFTCoreUpgradeable.sol";

interface IProxyOFT is IComposableOFTCoreUpgradeable {
    function getProxyOFTOf(uint16 chainId_) external view returns (address _proxyOFT);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "./IPoolRegistry.sol";
import "./IProxyOFT.sol";

interface IQuoter {
    function quoteCrossChainFlashRepayNativeFee(
        IProxyOFT proxyOFT_,
        bytes calldata lzArgs_
    ) external view returns (uint256 _nativeFee);

    function quoteCrossChainLeverageNativeFee(
        IProxyOFT proxyOFT_,
        bytes calldata lzArgs_
    ) external view returns (uint256 _nativeFee);

    function quoteLeverageCallbackNativeFee(uint16 dstChainId_) external view returns (uint256 _callbackTxNativeFee);

    function quoteFlashRepayCallbackNativeFee(uint16 dstChainId_) external view returns (uint256 _callbackTxNativeFee);

    function getFlashRepaySwapAndCallbackLzArgs(
        uint16 srcChainId_,
        uint16 dstChainId_
    ) external view returns (bytes memory lzArgs_);

    function getLeverageSwapAndCallbackLzArgs(
        uint16 srcChainId_,
        uint16 dstChainId_
    ) external view returns (bytes memory lzArgs_);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "../dependencies/openzeppelin/token/ERC20/IERC20.sol";

/**
 * @notice Reward Distributor interface
 */
interface IRewardsDistributor {
    function rewardToken() external view returns (IERC20);

    function tokenSpeeds(IERC20 token_) external view returns (uint256);

    function tokensAccruedOf(address account_) external view returns (uint256);

    function updateBeforeMintOrBurn(IERC20 token_, address account_) external;

    function updateBeforeTransfer(IERC20 token_, address from_, address to_) external;

    function claimable(address account_) external view returns (uint256 _claimable);

    function claimable(address account_, IERC20 token_) external view returns (uint256 _claimable);

    function claimRewards(address account_) external;

    function claimRewards(address account_, IERC20[] memory tokens_) external;

    function claimRewards(address[] memory accounts_, IERC20[] memory tokens_) external;

    function updateTokenSpeed(IERC20 token_, uint256 newSpeed_) external;

    function updateTokenSpeeds(IERC20[] calldata tokens_, uint256[] calldata speeds_) external;

    function tokens(uint256) external view returns (IERC20);

    function tokenStates(IERC20) external view returns (uint224 index, uint32 timestamp);

    function accountIndexOf(IERC20, address) external view returns (uint256);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "./IManageable.sol";
import "./IDepositToken.sol";
import "./IDebtToken.sol";

/**
 * @notice SmartFarmingManager interface
 */
interface ISmartFarmingManager {
    function flashRepay(
        ISyntheticToken syntheticToken_,
        IDepositToken depositToken_,
        uint256 withdrawAmount_,
        uint256 repayAmountMin_
    ) external returns (uint256 _withdrawn, uint256 _repaid);

    function crossChainFlashRepay(
        ISyntheticToken syntheticToken_,
        IDepositToken depositToken_,
        uint256 withdrawAmount_,
        IERC20 bridgeToken_,
        uint256 bridgeTokenAmountMin_,
        uint256 swapAmountOutMin_,
        uint256 repayAmountMin_,
        bytes calldata lzArgs_
    ) external payable;

    function crossChainLeverage(
        IERC20 tokenIn_,
        IDepositToken depositToken_,
        ISyntheticToken syntheticToken_,
        uint256 amountIn_,
        uint256 leverage_,
        uint256 swapAmountOutMin_,
        uint256 depositAmountMin_,
        bytes calldata lzArgs_
    ) external payable;

    function crossChainLeverageCallback(uint256 id_, uint256 swapAmountOut_) external returns (uint256 _deposited);

    function crossChainFlashRepayCallback(uint256 id_, uint256 swapAmountOut_) external returns (uint256 _repaid);

    function leverage(
        IERC20 tokenIn_,
        IDepositToken depositToken_,
        ISyntheticToken syntheticToken_,
        uint256 amountIn_,
        uint256 leverage_,
        uint256 depositAmountMin_
    ) external returns (uint256 _deposited, uint256 _issued);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "../dependencies/openzeppelin/token/ERC20/extensions/IERC20Metadata.sol";
import "./IDebtToken.sol";
import "./IPoolRegistry.sol";
import "../interfaces/IProxyOFT.sol";

interface ISyntheticToken is IERC20Metadata {
    function isActive() external view returns (bool);

    function mint(address to_, uint256 amount_) external;

    function burn(address from_, uint256 amount) external;

    function poolRegistry() external view returns (IPoolRegistry);

    function toggleIsActive() external;

    function seize(address from_, address to_, uint256 amount_) external;

    function updateMaxTotalSupply(uint256 newMaxTotalSupply_) external;

    function updateProxyOFT(IProxyOFT newProxyOFT_) external;

    function maxTotalSupply() external view returns (uint256);

    function proxyOFT() external view returns (IProxyOFT);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

interface ITreasury {
    function pull(address to_, uint256 amount_) external;

    function migrateTo(address newTreasury_) external;
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

interface IMasterOracle {
    function quoteTokenToUsd(address _asset, uint256 _amount) external view returns (uint256 _amountInUsd);

    function quoteUsdToToken(address _asset, uint256 _amountInUsd) external view returns (uint256 _amount);

    function quote(address _assetIn, address _assetOut, uint256 _amountIn) external view returns (uint256 _amountOut);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

interface ISwapper {
    function swapExactInput(
        address tokenIn_,
        address tokenOut_,
        uint256 amountIn_,
        uint256 amountOutMin_,
        address receiver_
    ) external returns (uint256 _amountOut);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "../../dependencies/openzeppelin/token/ERC20/IERC20.sol";

interface IWETH is IERC20 {
    function deposit() external payable;

    function withdraw(uint256) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;
import "../dependencies/openzeppelin-upgradeable/proxy/utils/Initializable.sol";

/**
 * @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 is Initializable {
    // 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;

    function __ReentrancyGuard_init() internal onlyInitializing {
        __ReentrancyGuard_init_unchained();
    }

    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        _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 making 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;
    }
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.9;

import "../dependencies/openzeppelin/token/ERC20/utils/SafeERC20.sol";

error FallbackIsNotAllowed();
error ReceiveIsNotAllowed();

/**
 * @title Utils contract that handles tokens sent to it
 */
abstract contract TokenHolder {
    using SafeERC20 for IERC20;

    /**
     * @dev Revert fallback calls
     */
    fallback() external payable {
        revert FallbackIsNotAllowed();
    }

    /**
     * @dev Revert when receiving by default
     */
    receive() external payable virtual {
        revert ReceiveIsNotAllowed();
    }

    /**
     * @notice ERC20 recovery in case of stuck tokens due direct transfers to the contract address.
     * @param token_ The token to transfer
     * @param to_ The recipient of the transfer
     * @param amount_ The amount to send
     */
    function sweep(IERC20 token_, address to_, uint256 amount_) external {
        _requireCanSweep();

        if (address(token_) == address(0)) {
            Address.sendValue(payable(to_), amount_);
        } else {
            token_.safeTransfer(to_, amount_);
        }
    }

    /**
     * @notice Function that reverts if the caller isn't allowed to sweep tokens
     * @dev Usually requires the owner or governor as the caller
     */
    function _requireCanSweep() internal view virtual;
}

{
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": [],
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"contract IPoolRegistry","name":"poolRegistry_","type":"address"},{"internalType":"contract IWETH","name":"nativeToken_","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"FallbackIsNotAllowed","type":"error"},{"inputs":[],"name":"SenderIsNotGovernor","type":"error"},{"inputs":[],"name":"SenderIsNotNativeToken","type":"error"},{"inputs":[],"name":"UnregisteredPool","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint8","name":"version","type":"uint8"}],"name":"Initialized","type":"event"},{"stateMutability":"payable","type":"fallback"},{"inputs":[{"internalType":"contract IPool","name":"pool_","type":"address"}],"name":"deposit","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"nativeToken","outputs":[{"internalType":"contract IWETH","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"poolRegistry","outputs":[{"internalType":"contract IPoolRegistry","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token_","type":"address"},{"internalType":"address","name":"to_","type":"address"},{"internalType":"uint256","name":"amount_","type":"uint256"}],"name":"sweep","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IPool","name":"pool_","type":"address"},{"internalType":"uint256","name":"amount_","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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000000000000000000000000e7c65eaeb1ca920f0db73cdfb4915dd31472a6a10000000000000000000000004200000000000000000000000000000000000006

-----Decoded View---------------
Arg [0] : poolRegistry_ (address): 0xe7C65eAEb1Ca920f0DB73cDFb4915Dd31472a6a1
Arg [1] : nativeToken_ (address): 0x4200000000000000000000000000000000000006

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000e7c65eaeb1ca920f0db73cdfb4915dd31472a6a1
Arg [1] : 0000000000000000000000004200000000000000000000000000000000000006