// File: src/JobConfig.sol



// SPDX-License-Identifier: BUSL-1.1

pragma solidity 0.8.13;

import "lib/openzeppelin-contracts/contracts/access/Ownable.sol";

import "./interfaces/ISavingsVaultViews.sol";
import "./interfaces/IJobConfig.sol";
import "./external/notional/interfaces/INotionalV2.sol";

/// @title JobConfig functions
/// @notice Contains function for configuring phuture jobs
contract JobConfig is IJobConfig, Ownable {
    /// @inheritdoc IJobConfig
    uint public constant SCALING_STEPS = 3;
    /// @inheritdoc IJobConfig
    uint public constant SCALING_PERCENTAGE = 3000;
    /// @inheritdoc IJobConfig
    uint public constant SCALING_STEPS_BINARY_SEARCH = 11;
    /// @inheritdoc IJobConfig
    HarvestingSpecification public harvestingSpecification;
    /// @inheritdoc IJobConfig
    ISavingsVaultViews public savingsVaultViews;

    constructor(ISavingsVaultViews _savingsVaultViews) {
        savingsVaultViews = _savingsVaultViews;
        harvestingSpecification = HarvestingSpecification.BINARY_SEARCH_SCALED_AMOUNT;
    }

    /// @inheritdoc IJobConfig
    function setSavingsVaultViews(ISavingsVaultViews _savingsVaultViews) external onlyOwner {
        savingsVaultViews = _savingsVaultViews;
    }

    /// @inheritdoc IJobConfig
    function setHarvestingAmountSpecification(HarvestingSpecification _harvestingSpecification) external onlyOwner {
        harvestingSpecification = _harvestingSpecification;
    }

    /// @inheritdoc IJobConfig
    function getDepositedAmount(address _savingsVault) external view returns (uint) {
        if (harvestingSpecification == HarvestingSpecification.MAX_AMOUNT) {
            return type(uint).max;
        } else if (harvestingSpecification == HarvestingSpecification.MAX_DEPOSITED_AMOUNT) {
            return savingsVaultViews.getMaxDepositedAmount(_savingsVault);
        } else {
            uint amount = savingsVaultViews.getMaxDepositedAmount(_savingsVault);
            if (amount == 0) {
                return amount;
            }
            if (harvestingSpecification == HarvestingSpecification.BINARY_SEARCH_SCALED_AMOUNT) {
                return savingsVaultViews.scaleWithBinarySearch(_savingsVault, amount, SCALING_STEPS_BINARY_SEARCH);
            } else if (harvestingSpecification == HarvestingSpecification.SCALED_AMOUNT) {
                return savingsVaultViews.scaleAmount(_savingsVault, amount, SCALING_PERCENTAGE, SCALING_STEPS);
            }
        }
        return 0;
    }
}

// File: lib/openzeppelin-contracts/contracts/access/Ownable.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (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 Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        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: src/interfaces/ISavingsVaultViews.sol



// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity 0.8.13;

import "./ISavingsVaultViewer.sol";
import { IWrappedfCashComplete } from "../external/notional/interfaces/IWrappedfCash.sol";
import "../external/notional/interfaces/INotionalV2.sol";

/// @title Fixed rate product vault helper view functions interface
/// @notice Describes helper view functions
interface ISavingsVaultViews {
    /// @notice Base point number
    /// @return Returns base point number
    function BP() external view returns (uint16);

    /// @notice Spot annual percentage yield(APY) of the Savings Vault
    /// @param _savingsVault Address of the vault
    /// @return Returns APY of the vault with the precision of 1,000,000,000 units i.e. 37264168 equals to 3.7264168%
    function getAPY(ISavingsVaultViewer _savingsVault) external view returns (uint);

    /// @notice Max amount which can be deposited onto Notional
    /// @param _savingsVault Address of the vault
    /// @return maxDepositedAmount  max deposited amount available
    function getMaxDepositedAmount(address _savingsVault) external view returns (uint maxDepositedAmount);

    /// @notice Scales down the passed amount if there is price slippage.
    /// @param _savingsVault Address of the vault
    /// @param _amount Amount to scale down
    /// @param _percentage Percentage of initial amount to scale down during each step in BP.
    /// @param _steps Number of iterations for scaling down.
    /// @return Scaled amount
    function scaleAmount(
        address _savingsVault,
        uint _amount,
        uint _percentage,
        uint _steps
    ) external view returns (uint);

    /// @notice Scales down the passed amount if there is price slippage.
    /// @param _savingsVault Address of the vault
    /// @param _amount Amount to scale down
    /// @param _steps Steps to scaled down with binary search
    /// @return Scaled amount
    function scaleWithBinarySearch(
        address _savingsVault,
        uint _amount,
        uint _steps
    ) external view returns (uint);

    /// @notice Returns highest yiled market parameters
    /// @param _savingsVault Address of the vault
    /// @return maturity Maturity timestamp
    /// @return minImpliedRate Annualized oracle interest rate scaled by maxLoss for the vault
    /// @return currencyId Id of the currency on Notional
    /// @return calculationViews Views contract from Notional
    function getHighestYieldMarketParameters(address _savingsVault)
        external
        view
        returns (
            uint maturity,
            uint32 minImpliedRate,
            uint16 currencyId,
            INotionalV2 calculationViews
        );
}

// File: src/interfaces/IJobConfig.sol



// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity 0.8.13;

import "./ISavingsVaultViews.sol";

/// @title JobConfig interface
/// @notice Describes function for configuring phuture jobs
interface IJobConfig {
    enum HarvestingSpecification {
        MAX_AMOUNT,
        MAX_DEPOSITED_AMOUNT,
        SCALED_AMOUNT,
        BINARY_SEARCH_SCALED_AMOUNT
    }

    /// @notice Number of steps for scaling
    /// @return Returns number of steps for scaling
    function SCALING_STEPS() external view returns (uint);

    /// @notice Percentage scaled each step in BP
    /// @return Returns percentage scaled each step in BP
    function SCALING_PERCENTAGE() external view returns (uint);

    /// @notice Steps to scale with binary search
    /// @return Returns steps to scale with binary search
    function SCALING_STEPS_BINARY_SEARCH() external view returns (uint);

    /// @notice Sets harvesting amount specification
    /// @param _harvestingSpecification Enum which specifies the harvesting amount calculation method
    function setHarvestingAmountSpecification(HarvestingSpecification _harvestingSpecification) external;

    /// @notice Gets harvesting amount specification
    /// @return returns harvesting specification
    function harvestingSpecification() external returns (HarvestingSpecification);

    /// @notice Sets SavingsVaultViews contract
    /// @param _savingsVaultViews Address of the SavingsVaultViews
    function setSavingsVaultViews(ISavingsVaultViews _savingsVaultViews) external;

    /// @notice Calculates the deposited amount based on the specification
    /// @param _savingsVault Address of the SavingsVault
    /// @return amount Amount possible to harvest
    function getDepositedAmount(address _savingsVault) external view returns (uint amount);

    /// @notice Address of the SavingsVaultViews contract
    /// @return Returns address of the SavingsVaultViews contract
    function savingsVaultViews() external view returns (ISavingsVaultViews);
}

// File: src/external/notional/interfaces/INotionalV2.sol



// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.8;
pragma abicoder v2;

import "../lib/Types.sol";

interface INotionalV2 {
    function getCurrency(uint16 currencyId)
        external
        view
        returns (Token memory assetToken, Token memory underlyingToken);

    function getCashGroup(uint16 currencyId) external view returns (CashGroupSettings memory);

    function getAccountContext(address account) external view returns (AccountContext memory);

    function getAccountPortfolio(address account) external view returns (PortfolioAsset[] memory);

    function getAccountBalance(uint16 currencyId, address account)
        external
        view
        returns (
            int256 cashBalance,
            int256 nTokenBalance,
            uint256 lastClaimTime
        );

    function getfCashLendFromDeposit(
        uint16 currencyId,
        uint256 depositAmountExternal,
        uint256 maturity,
        uint32 minLendRate,
        uint256 blockTime,
        bool useUnderlying
    )
        external
        view
        returns (
            uint88 fCashAmount,
            uint8 marketIndex,
            bytes32 encodedTrade
        );

    function getDepositFromfCashLend(
        uint16 currencyId,
        uint256 fCashAmount,
        uint256 maturity,
        uint32 minLendRate,
        uint256 blockTime
    )
        external
        view
        returns (
            uint256 depositAmountUnderlying,
            uint256 depositAmountAsset,
            uint8 marketIndex,
            bytes32 encodedTrade
        );

    function getPrincipalFromfCashBorrow(
        uint16 currencyId,
        uint256 fCashBorrow,
        uint256 maturity,
        uint32 maxBorrowRate,
        uint256 blockTime
    )
        external
        view
        returns (
            uint256 borrowAmountUnderlying,
            uint256 borrowAmountAsset,
            uint8 marketIndex,
            bytes32 encodedTrade
        );

    function getfCashAmountGivenCashAmount(
        uint16 currencyId,
        int88 netCashToAccount,
        uint256 marketIndex,
        uint256 blockTime
    ) external view returns (int256);

    function getfCashBorrowFromPrincipal(
        uint16 currencyId,
        uint256 borrowedAmountExternal,
        uint256 maturity,
        uint32 maxBorrowRate,
        uint256 blockTime,
        bool useUnderlying
    )
        external
        view
        returns (
            uint88 fCashDebt,
            uint8 marketIndex,
            bytes32 encodedTrade
        );

    function convertCashBalanceToExternal(
        uint16 currencyId,
        int256 cashBalanceInternal,
        bool useUnderlying
    ) external view returns (int256);

    function getPresentfCashValue(
        uint16 currencyId,
        uint256 maturity,
        int256 notional,
        uint256 blockTime,
        bool riskAdjusted
    ) external view returns (int256 presentValue);

    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes calldata data
    ) external payable;

    function settleAccount(address account) external;

    function withdraw(
        uint16 currencyId,
        uint88 amountInternalPrecision,
        bool redeemToUnderlying
    ) external returns (uint256);

    function batchBalanceAndTradeAction(address account, BalanceActionWithTrades[] calldata actions) external payable;

    function batchLend(address account, BatchLend[] calldata actions) external;
}

// File: lib/openzeppelin-contracts/contracts/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: src/interfaces/ISavingsVaultViewer.sol



// SPDX-License-Identifier: GPL-2.0-or-later

pragma solidity 0.8.13;

import "../external/notional/interfaces/IWrappedfCashFactory.sol";

/// @title Fixed rate product vault view functions interface
/// @notice Describes view functions
interface ISavingsVaultViewer {
    /// @notice Number of supported maturities
    /// @return Returns number of supported maturities
    function SUPPORTED_MATURITIES() external view returns (uint8);

    /// @notice Base point number
    /// @return Returns base point number
    function BP() external view returns (uint16);

    /// @notice AUM scaled per seconds rate
    /// @return Returns AUM scaled per seconds rate
    function AUM_SCALED_PER_SECONDS_RATE() external view returns (uint);

    /// @notice Minting fee in basis point format [0 - 10_000]
    /// @return Returns minting fee in base point (BP) format
    function MINTING_FEE_IN_BP() external view returns (uint);

    /// @notice Burning fee in base point format [0 - 10_000]
    /// @return Returns burning fee in base point (BP) format
    function BURNING_FEE_IN_BP() external view returns (uint);

    /// @notice Maximum loss allowed during harvesting and withdrawal
    /// @return Returns maximum loss allowed during harvesting and withdrawal
    function maxLoss() external view returns (uint16);

    /// @notice Currency id of asset on Notional
    /// @return Returns currency id of the asset in the vault
    function currencyId() external view returns (uint16);

    /// @notice Address of Notional router
    /// @return Returns address of main Notional router contract
    function notionalRouter() external view returns (address);

    /// @notice Address of wrappedfCash factory
    /// @return Returns address of wrappedfCashFactory
    function wrappedfCashFactory() external view returns (IWrappedfCashFactory);

    /// @notice fCash positions that the vault has
    /// @return Returns addresses of fCash positions that the vault has
    function getfCashPositions() external view returns (address[2] memory);
}

// File: src/external/notional/interfaces/IWrappedfCash.sol



// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.0;

import { TokenType } from "../lib/Types.sol";
import "./IERC4626.sol";
import "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";
import "lib/openzeppelin-contracts/contracts/token/ERC777/IERC777.sol";
import "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol";

interface IWrappedfCash {
    struct RedeemOpts {
        bool redeemToUnderlying;
        bool transferfCash;
        address receiver;
        // Zero signifies no maximum slippage
        uint32 maxImpliedRate;
    }

    function initialize(uint16 currencyId, uint40 maturity) external;

    function redeem(uint256 amount, RedeemOpts memory data) external;

    /// @notice Returns the underlying fCash ID of the token
    function getfCashId() external view returns (uint256);

    /// @notice Returns the underlying fCash maturity of the token
    function getMaturity() external view returns (uint40 maturity);

    /// @notice True if the fCash has matured, assets mature exactly on the block time
    function hasMatured() external view returns (bool);

    /// @notice Returns the underlying fCash currency
    function getCurrencyId() external view returns (uint16 currencyId);

    /// @notice Returns the components of the fCash idd
    function getDecodedID() external view returns (uint16 currencyId, uint40 maturity);

    /// @notice Returns the current market index for this fCash asset. If this returns
    /// zero that means it is idiosyncratic and cannot be traded.
    function getMarketIndex() external view returns (uint8);

    /// @notice Returns the token and precision of the token that this token settles
    /// to. For example, fUSDC will return the USDC token address and 1e6. The zero
    /// address will represent ETH.
    function getUnderlyingToken() external view returns (IERC20 underlyingToken, int256 underlyingPrecision);

    /// @notice Returns the asset token which the fCash settles to. This will be an interest
    /// bearing token like a cToken or aToken.
    function getAssetToken()
        external
        view
        returns (
            IERC20 assetToken,
            int256 assetPrecision,
            TokenType tokenType
        );

    function mintViaUnderlying(
        uint256 depositAmountExternal,
        uint88 fCashAmount,
        address receiver,
        uint32 minImpliedRate
    ) external;

    function redeemToUnderlying(
        uint256 amount,
        address receiver,
        uint32 maxImpliedRate
    ) external;
}

interface IWrappedfCashComplete is IWrappedfCash, IERC777, IERC4626 {}

// File: src/external/notional/interfaces/IWrappedfCashFactory.sol



// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >0.8.8;

interface IWrappedfCashFactory {
    function deployWrapper(uint16 currencyId, uint40 maturity) external returns (address);

    function computeAddress(uint16 currencyId, uint40 maturity) external view returns (address);
}

// File: src/external/notional/lib/Types.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/// @notice Different types of internal tokens
///  - UnderlyingToken: underlying asset for a cToken (except for Ether)
///  - cToken: Compound interest bearing token
///  - cETH: Special handling for cETH tokens
///  - Ether: the one and only
///  - NonMintable: tokens that do not have an underlying (therefore not cTokens)
enum TokenType {
    UnderlyingToken,
    cToken,
    cETH,
    Ether,
    NonMintable
}

/// @notice Specifies the different trade action types in the system. Each trade action type is
/// encoded in a tightly packed bytes32 object. Trade action type is the first big endian byte of the
/// 32 byte trade action object. The schemas for each trade action type are defined below.
enum TradeActionType {
    // (uint8 TradeActionType, uint8 MarketIndex, uint88 fCashAmount, uint32 minImpliedRate, uint120 unused)
    Lend,
    // (uint8 TradeActionType, uint8 MarketIndex, uint88 fCashAmount, uint32 maxImpliedRate, uint120 unused)
    Borrow,
    // (uint8 TradeActionType, uint8 MarketIndex, uint88 assetCashAmount, uint32 minImpliedRate, uint32 maxImpliedRate, uint88 unused)
    AddLiquidity,
    // (uint8 TradeActionType, uint8 MarketIndex, uint88 tokenAmount, uint32 minImpliedRate, uint32 maxImpliedRate, uint88 unused)
    RemoveLiquidity,
    // (uint8 TradeActionType, uint32 Maturity, int88 fCashResidualAmount, uint128 unused)
    PurchaseNTokenResidual,
    // (uint8 TradeActionType, address CounterpartyAddress, int88 fCashAmountToSettle)
    SettleCashDebt
}

/// @notice Specifies different deposit actions that can occur during BalanceAction or BalanceActionWithTrades
enum DepositActionType {
    // No deposit action
    None,
    // Deposit asset cash, depositActionAmount is specified in asset cash external precision
    DepositAsset,
    // Deposit underlying tokens that are mintable to asset cash, depositActionAmount is specified in underlying token
    // external precision
    DepositUnderlying,
    // Deposits specified asset cash external precision amount into an nToken and mints the corresponding amount of
    // nTokens into the account
    DepositAssetAndMintNToken,
    // Deposits specified underlying in external precision, mints asset cash, and uses that asset cash to mint nTokens
    DepositUnderlyingAndMintNToken,
    // Redeems an nToken balance to asset cash. depositActionAmount is specified in nToken precision. Considered a deposit action
    // because it deposits asset cash into an account. If there are fCash residuals that cannot be sold off, will revert.
    RedeemNToken,
    // Converts specified amount of asset cash balance already in Notional to nTokens. depositActionAmount is specified in
    // Notional internal 8 decimal precision.
    ConvertCashToNToken
}

/// @notice Used internally for PortfolioHandler state
enum AssetStorageState {
    NoChange,
    Update,
    Delete
}

/// @notice Defines a batch lending action
struct BatchLend {
    uint16 currencyId;
    // True if the contract should try to transfer underlying tokens instead of asset tokens
    bool depositUnderlying;
    // Array of tightly packed 32 byte objects that represent trades. See TradeActionType documentation
    bytes32[] trades;
}

/// @notice Defines a balance action with a set of trades to do as well
struct BalanceActionWithTrades {
    DepositActionType actionType;
    uint16 currencyId;
    uint256 depositActionAmount;
    uint256 withdrawAmountInternalPrecision;
    bool withdrawEntireCashBalance;
    bool redeemToUnderlying;
    // Array of tightly packed 32 byte objects that represent trades. See TradeActionType documentation
    bytes32[] trades;
}

/// @notice Internal object that represents a token
struct Token {
    address tokenAddress;
    bool hasTransferFee;
    int256 decimals;
    TokenType tokenType;
    uint256 maxCollateralBalance;
}

struct PortfolioAsset {
    // Asset currency id
    uint256 currencyId;
    uint256 maturity;
    // Asset type, fCash or liquidity token.
    uint256 assetType;
    // fCash amount or liquidity token amount
    int256 notional;
    // Used for managing portfolio asset state
    uint256 storageSlot;
    // The state of the asset for when it is written to storage
    AssetStorageState storageState;
}

/// @dev Governance parameters for a cash group, total storage is 9 bytes + 7 bytes for liquidity token haircuts
/// and 7 bytes for rate scalars, total of 23 bytes. Note that this is stored packed in the storage slot so there
/// are no indexes stored for liquidityTokenHaircuts or rateScalars, maxMarketIndex is used instead to determine the
/// length.
struct CashGroupSettings {
    // Index of the AMMs on chain that will be made available. Idiosyncratic fCash
    // that is dated less than the longest AMM will be tradable.
    uint8 maxMarketIndex;
    // Time window in minutes that the rate oracle will be averaged over
    uint8 rateOracleTimeWindowMin;
    // Total fees per trade, specified in BPS
    uint8 totalFeeBPS;
    // Share of the fees given to the protocol, denominated in percentage
    uint8 reserveFeeShare;
    // Debt buffer specified in 5 BPS increments
    uint8 debtBuffer5BPS;
    // fCash haircut specified in 5 BPS increments
    uint8 fCashHaircut5BPS;
    // If an account has a negative cash balance, it can be settled by incurring debt at the 3 month market. This
    // is the basis points for the penalty rate that will be added the current 3 month oracle rate.
    uint8 settlementPenaltyRate5BPS;
    // If an account has fCash that is being liquidated, this is the discount that the liquidator can purchase it for
    uint8 liquidationfCashHaircut5BPS;
    // If an account has fCash that is being liquidated, this is the discount that the liquidator can purchase it for
    uint8 liquidationDebtBuffer5BPS;
    // Liquidity token haircut applied to cash claims, specified as a percentage between 0 and 100
    uint8[] liquidityTokenHaircuts;
    // Rate scalar used to determine the slippage of the market
    uint8[] rateScalars;
}

/// @dev Holds account level context information used to determine settlement and
/// free collateral actions. Total storage is 28 bytes
struct AccountContext {
    // Used to check when settlement must be triggered on an account
    uint40 nextSettleTime;
    // For lenders that never incur debt, we use this flag to skip the free collateral check.
    bytes1 hasDebt;
    // Length of the account's asset array
    uint8 assetArrayLength;
    // If this account has bitmaps set, this is the corresponding currency id
    uint16 bitmapCurrencyId;
    // 9 total active currencies possible (2 bytes each)
    bytes18 activeCurrencies;
}

/// @dev Used in view methods to return account balances in a developer friendly manner
struct AccountBalance {
    uint256 currencyId;
    int256 cashBalance;
    int256 nTokenBalance;
    uint256 lastClaimTime;
    uint256 lastClaimIntegralSupply;
}

/// @dev Asset rate used to convert between underlying cash and asset cash
struct AssetRateParameters {
    // Address of the asset rate oracle
    address rateOracle;
    // The exchange rate from base to quote (if invert is required it is already done)
    int256 rate;
    // The decimals of the underlying, the rate converts to the underlying decimals
    int256 underlyingDecimals;
}

// File: src/external/notional/interfaces/IERC4626.sol



pragma solidity ^0.8.0;

interface IERC4626 {
    event Deposit(address indexed caller, address indexed owner, uint256 assets, uint256 shares);

    event Withdraw(
        address indexed caller,
        address indexed receiver,
        address indexed owner,
        uint256 assets,
        uint256 shares
    );

    /**
     * @dev Returns the address of the underlying token used for the Vault for accounting, depositing, and withdrawing.
     *
     * - MUST be an ERC-20 token contract.
     * - MUST NOT revert.
     */
    function asset() external view returns (address assetTokenAddress);

    /**
     * @dev Returns the total amount of the underlying asset that is “managed” by Vault.
     *
     * - SHOULD include any compounding that occurs from yield.
     * - MUST be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT revert.
     */
    function totalAssets() external view returns (uint256 totalManagedAssets);

    /**
     * @dev Returns the amount of shares that the Vault would exchange for the amount of assets provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToShares(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Returns the amount of assets that the Vault would exchange for the amount of shares provided, in an ideal
     * scenario where all the conditions are met.
     *
     * - MUST NOT be inclusive of any fees that are charged against assets in the Vault.
     * - MUST NOT show any variations depending on the caller.
     * - MUST NOT reflect slippage or other on-chain conditions, when performing the actual exchange.
     * - MUST NOT revert.
     *
     * NOTE: This calculation MAY NOT reflect the “per-user” price-per-share, and instead should reflect the
     * “average-user’s” price-per-share, meaning what the average user should expect to see when exchanging to and
     * from.
     */
    function convertToAssets(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be deposited into the Vault for the receiver,
     * through a deposit call.
     *
     * - MUST return a limited value if receiver is subject to some deposit limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of assets that may be deposited.
     * - MUST NOT revert.
     */
    function maxDeposit(address receiver) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their deposit at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of Vault shares that would be minted in a deposit
     *   call in the same transaction. I.e. deposit should return the same or more shares as previewDeposit if called
     *   in the same transaction.
     * - MUST NOT account for deposit limits like those returned from maxDeposit and should always act as though the
     *   deposit would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewDeposit SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewDeposit(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Mints shares Vault shares to receiver by depositing exactly amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   deposit execution, and are accounted for during deposit.
     * - MUST revert if all of assets cannot be deposited (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function deposit(uint256 assets, address receiver) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of the Vault shares that can be minted for the receiver, through a mint call.
     * - MUST return a limited value if receiver is subject to some mint limit.
     * - MUST return 2 ** 256 - 1 if there is no limit on the maximum amount of shares that may be minted.
     * - MUST NOT revert.
     */
    function maxMint(address receiver) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their mint at the current block, given
     * current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of assets that would be deposited in a mint call
     *   in the same transaction. I.e. mint should return the same or fewer assets as previewMint if called in the
     *   same transaction.
     * - MUST NOT account for mint limits like those returned from maxMint and should always act as though the mint
     *   would be accepted, regardless if the user has enough tokens approved, etc.
     * - MUST be inclusive of deposit fees. Integrators should be aware of the existence of deposit fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewMint SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by minting.
     */
    function previewMint(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Mints exactly shares Vault shares to receiver by depositing amount of underlying tokens.
     *
     * - MUST emit the Deposit event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the mint
     *   execution, and are accounted for during mint.
     * - MUST revert if all of shares cannot be minted (due to deposit limit being reached, slippage, the user not
     *   approving enough underlying tokens to the Vault contract, etc).
     *
     * NOTE: most implementations will require pre-approval of the Vault with the Vault’s underlying asset token.
     */
    function mint(uint256 shares, address receiver) external returns (uint256 assets);

    /**
     * @dev Returns the maximum amount of the underlying asset that can be withdrawn from the owner balance in the
     * Vault, through a withdraw call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxWithdraw(address owner) external view returns (uint256 maxAssets);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their withdrawal at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no fewer than the exact amount of Vault shares that would be burned in a withdraw
     *   call in the same transaction. I.e. withdraw should return the same or fewer shares as previewWithdraw if
     *   called
     *   in the same transaction.
     * - MUST NOT account for withdrawal limits like those returned from maxWithdraw and should always act as though
     *   the withdrawal would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToShares and previewWithdraw SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by depositing.
     */
    function previewWithdraw(uint256 assets) external view returns (uint256 shares);

    /**
     * @dev Burns shares from owner and sends exactly assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   withdraw execution, and are accounted for during withdraw.
     * - MUST revert if all of assets cannot be withdrawn (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * Note that some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function withdraw(
        uint256 assets,
        address receiver,
        address owner
    ) external returns (uint256 shares);

    /**
     * @dev Returns the maximum amount of Vault shares that can be redeemed from the owner balance in the Vault,
     * through a redeem call.
     *
     * - MUST return a limited value if owner is subject to some withdrawal limit or timelock.
     * - MUST return balanceOf(owner) if owner is not subject to any withdrawal limit or timelock.
     * - MUST NOT revert.
     */
    function maxRedeem(address owner) external view returns (uint256 maxShares);

    /**
     * @dev Allows an on-chain or off-chain user to simulate the effects of their redeemption at the current block,
     * given current on-chain conditions.
     *
     * - MUST return as close to and no more than the exact amount of assets that would be withdrawn in a redeem call
     *   in the same transaction. I.e. redeem should return the same or more assets as previewRedeem if called in the
     *   same transaction.
     * - MUST NOT account for redemption limits like those returned from maxRedeem and should always act as though the
     *   redemption would be accepted, regardless if the user has enough shares, etc.
     * - MUST be inclusive of withdrawal fees. Integrators should be aware of the existence of withdrawal fees.
     * - MUST NOT revert.
     *
     * NOTE: any unfavorable discrepancy between convertToAssets and previewRedeem SHOULD be considered slippage in
     * share price or some other type of condition, meaning the depositor will lose assets by redeeming.
     */
    function previewRedeem(uint256 shares) external view returns (uint256 assets);

    /**
     * @dev Burns exactly shares from owner and sends assets of underlying tokens to receiver.
     *
     * - MUST emit the Withdraw event.
     * - MAY support an additional flow in which the underlying tokens are owned by the Vault contract before the
     *   redeem execution, and are accounted for during redeem.
     * - MUST revert if all of shares cannot be redeemed (due to withdrawal limit being reached, slippage, the owner
     *   not having enough shares, etc).
     *
     * NOTE: some implementations will require pre-requesting to the Vault before a withdrawal may be performed.
     * Those methods should be performed separately.
     */
    function redeem(
        uint256 shares,
        address receiver,
        address owner
    ) external returns (uint256 assets);
}

// File: lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

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

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

// File: lib/openzeppelin-contracts/contracts/token/ERC777/IERC777.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC777/IERC777.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC777Token standard as defined in the EIP.
 *
 * This contract uses the
 * https://eips.ethereum.org/EIPS/eip-1820[ERC1820 registry standard] to let
 * token holders and recipients react to token movements by using setting implementers
 * for the associated interfaces in said registry. See {IERC1820Registry} and
 * {ERC1820Implementer}.
 */
interface IERC777 {
    /**
     * @dev Emitted when `amount` tokens are created by `operator` and assigned to `to`.
     *
     * Note that some additional user `data` and `operatorData` can be logged in the event.
     */
    event Minted(address indexed operator, address indexed to, uint256 amount, bytes data, bytes operatorData);

    /**
     * @dev Emitted when `operator` destroys `amount` tokens from `account`.
     *
     * Note that some additional user `data` and `operatorData` can be logged in the event.
     */
    event Burned(address indexed operator, address indexed from, uint256 amount, bytes data, bytes operatorData);

    /**
     * @dev Emitted when `operator` is made operator for `tokenHolder`.
     */
    event AuthorizedOperator(address indexed operator, address indexed tokenHolder);

    /**
     * @dev Emitted when `operator` is revoked its operator status for `tokenHolder`.
     */
    event RevokedOperator(address indexed operator, address indexed tokenHolder);

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

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the smallest part of the token that is not divisible. This
     * means all token operations (creation, movement and destruction) must have
     * amounts that are a multiple of this number.
     *
     * For most token contracts, this value will equal 1.
     */
    function granularity() external view returns (uint256);

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

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

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * If send or receive hooks are registered for the caller and `recipient`,
     * the corresponding functions will be called with `data` and empty
     * `operatorData`. See {IERC777Sender} and {IERC777Recipient}.
     *
     * Emits a {Sent} event.
     *
     * Requirements
     *
     * - the caller must have at least `amount` tokens.
     * - `recipient` cannot be the zero address.
     * - if `recipient` is a contract, it must implement the {IERC777Recipient}
     * interface.
     */
    function send(
        address recipient,
        uint256 amount,
        bytes calldata data
    ) external;

    /**
     * @dev Destroys `amount` tokens from the caller's account, reducing the
     * total supply.
     *
     * If a send hook is registered for the caller, the corresponding function
     * will be called with `data` and empty `operatorData`. See {IERC777Sender}.
     *
     * Emits a {Burned} event.
     *
     * Requirements
     *
     * - the caller must have at least `amount` tokens.
     */
    function burn(uint256 amount, bytes calldata data) external;

    /**
     * @dev Returns true if an account is an operator of `tokenHolder`.
     * Operators can send and burn tokens on behalf of their owners. All
     * accounts are their own operator.
     *
     * See {operatorSend} and {operatorBurn}.
     */
    function isOperatorFor(address operator, address tokenHolder) external view returns (bool);

    /**
     * @dev Make an account an operator of the caller.
     *
     * See {isOperatorFor}.
     *
     * Emits an {AuthorizedOperator} event.
     *
     * Requirements
     *
     * - `operator` cannot be calling address.
     */
    function authorizeOperator(address operator) external;

    /**
     * @dev Revoke an account's operator status for the caller.
     *
     * See {isOperatorFor} and {defaultOperators}.
     *
     * Emits a {RevokedOperator} event.
     *
     * Requirements
     *
     * - `operator` cannot be calling address.
     */
    function revokeOperator(address operator) external;

    /**
     * @dev Returns the list of default operators. These accounts are operators
     * for all token holders, even if {authorizeOperator} was never called on
     * them.
     *
     * This list is immutable, but individual holders may revoke these via
     * {revokeOperator}, in which case {isOperatorFor} will return false.
     */
    function defaultOperators() external view returns (address[] memory);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient`. The caller must
     * be an operator of `sender`.
     *
     * If send or receive hooks are registered for `sender` and `recipient`,
     * the corresponding functions will be called with `data` and
     * `operatorData`. See {IERC777Sender} and {IERC777Recipient}.
     *
     * Emits a {Sent} event.
     *
     * Requirements
     *
     * - `sender` cannot be the zero address.
     * - `sender` must have at least `amount` tokens.
     * - the caller must be an operator for `sender`.
     * - `recipient` cannot be the zero address.
     * - if `recipient` is a contract, it must implement the {IERC777Recipient}
     * interface.
     */
    function operatorSend(
        address sender,
        address recipient,
        uint256 amount,
        bytes calldata data,
        bytes calldata operatorData
    ) external;

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the total supply.
     * The caller must be an operator of `account`.
     *
     * If a send hook is registered for `account`, the corresponding function
     * will be called with `data` and `operatorData`. See {IERC777Sender}.
     *
     * Emits a {Burned} event.
     *
     * Requirements
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     * - the caller must be an operator for `account`.
     */
    function operatorBurn(
        address account,
        uint256 amount,
        bytes calldata data,
        bytes calldata operatorData
    ) external;

    event Sent(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256 amount,
        bytes data,
        bytes operatorData
    );
}