// File: src/stats/calculators/StethLSTCalculator.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { LSTCalculatorBase } from "src/stats/calculators/base/LSTCalculatorBase.sol";
import { IstEth } from "src/interfaces/external/lido/IstEth.sol";
import { ISystemRegistry } from "src/interfaces/ISystemRegistry.sol";

contract StethLSTCalculator is LSTCalculatorBase {
    constructor(ISystemRegistry _systemRegistry) LSTCalculatorBase(_systemRegistry) { }

    function calculateEthPerToken() public view override returns (uint256) {
        return IstEth(lstTokenAddress).getPooledEthByShares(1 ether);
    }

    function isRebasing() public pure override returns (bool) {
        return true;
    }
}

// File: src/stats/calculators/base/LSTCalculatorBase.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { BaseStatsCalculator } from "src/stats/calculators/base/BaseStatsCalculator.sol";
import { Initializable } from "openzeppelin-contracts/proxy/utils/Initializable.sol";
import { ILSTStats } from "src/interfaces/stats/ILSTStats.sol";
import { IStatsCalculator } from "src/interfaces/stats/IStatsCalculator.sol";
import { ISystemRegistry } from "src/interfaces/ISystemRegistry.sol";
import { Stats } from "src/stats/Stats.sol";
import { SecurityBase } from "src/security/SecurityBase.sol";
import { IRootPriceOracle } from "src/interfaces/oracles/IRootPriceOracle.sol";

abstract contract LSTCalculatorBase is ILSTStats, BaseStatsCalculator, Initializable {
    /// @notice time in seconds between apr snapshots
    uint256 public constant APR_SNAPSHOT_INTERVAL_IN_SEC = 3 * 24 * 60 * 60; // 3 days

    /// @notice time in seconds for the initialization period
    uint256 public constant APR_FILTER_INIT_INTERVAL_IN_SEC = 9 * 24 * 60 * 60; // 9 days

    /// @notice time in seconds between slashing snapshots
    uint256 public constant SLASHING_SNAPSHOT_INTERVAL_IN_SEC = 24 * 60 * 60; // 1 day

    /// @notice time in seconds between discount snapshots
    uint256 public constant DISCOUNT_SNAPSHOT_INTERVAL_IN_SEC = 24 * 60 * 60; // 1 day

    /// @notice alpha for filter
    uint256 public constant ALPHA = 1e17; // 0.1; must be 0 < x <= 1e18

    /// @notice lstTokenAddress is the address for the LST that the stats are for
    address public lstTokenAddress;

    /// @notice ethPerToken at the last snapshot for base apr
    uint256 public lastBaseAprEthPerToken;

    /// @notice timestamp of the last snapshot for base apr
    uint256 public lastBaseAprSnapshotTimestamp;

    /// @notice timestamp of the last discount snapshot
    uint256 public lastDiscountSnapshotTimestamp;

    /// @notice ethPerToken at the last snapshot for slashing events
    uint256 public lastSlashingEthPerToken;

    /// @notice timestamp of the last snapshot for base apr
    uint256 public lastSlashingSnapshotTimestamp;

    /// @notice filtered base apr
    uint256 public baseApr;

    /// @notice list of slashing costs (slashing / value at the time)
    uint256[] public slashingCosts;

    /// @notice list of timestamps associated with slashing events
    uint256[] public slashingTimestamps;

    /// @notice the last 10 daily discount/premium values for the token
    uint24[10] public discountHistory;

    /// @notice each index is the timestamp that the token reached that discount (e.g., 1pct = 0 index)
    uint40[5] public discountTimestampByPercent;

    // TODO: verify that we save space by using a uint8. It should be packed with the bool & bytes32 below
    /// @dev the next index in the discountHistory buffer to be written
    uint8 private discountHistoryIndex;

    /// @notice indicates if baseApr filter is initialized
    bool public baseAprFilterInitialized;

    bytes32 private _aprId;

    struct InitData {
        address lstTokenAddress;
    }

    event BaseAprSnapshotTaken(
        uint256 priorEthPerToken,
        uint256 priorTimestamp,
        uint256 currentEthPerToken,
        uint256 currentTimestamp,
        uint256 priorBaseApr,
        uint256 currentBaseApr
    );

    event SlashingSnapshotTaken(
        uint256 priorEthPerToken, uint256 priorTimestamp, uint256 currentEthPerToken, uint256 currentTimestamp
    );

    event DiscountSnapshotTaken(uint256 priorTimestamp, uint24 discount, uint256 currentTimestamp);

    event SlashingEventRecorded(uint256 slashingCost, uint256 slashingTimestamp);

    constructor(ISystemRegistry _systemRegistry) BaseStatsCalculator(_systemRegistry) { }

    /// @inheritdoc IStatsCalculator
    function initialize(bytes32[] calldata, bytes calldata initData) external override initializer {
        InitData memory decodedInitData = abi.decode(initData, (InitData));
        lstTokenAddress = decodedInitData.lstTokenAddress;
        _aprId = Stats.generateRawTokenIdentifier(lstTokenAddress);

        uint256 currentEthPerToken = calculateEthPerToken();
        lastBaseAprEthPerToken = currentEthPerToken;
        lastBaseAprSnapshotTimestamp = block.timestamp;
        baseAprFilterInitialized = false;
        lastSlashingEthPerToken = currentEthPerToken;
        lastSlashingSnapshotTimestamp = block.timestamp;

        // slither-disable-next-line reentrancy-benign
        updateDiscountHistory(currentEthPerToken);
        updateDiscountTimestampByPercent();
    }

    /// @inheritdoc IStatsCalculator
    function getAddressId() external view returns (address) {
        return lstTokenAddress;
    }

    /// @inheritdoc IStatsCalculator
    function getAprId() external view returns (bytes32) {
        return _aprId;
    }

    function _snapshot() internal override {
        uint256 currentEthPerToken = calculateEthPerToken();
        if (_timeForAprSnapshot()) {
            uint256 currentApr = Stats.calculateAnnualizedChangeMinZero(
                lastBaseAprSnapshotTimestamp, lastBaseAprEthPerToken, block.timestamp, currentEthPerToken
            );
            uint256 newBaseApr;
            if (baseAprFilterInitialized) {
                newBaseApr = Stats.getFilteredValue(ALPHA, baseApr, currentApr);
            } else {
                // Speed up the baseApr filter ramp
                newBaseApr = currentApr;
                baseAprFilterInitialized = true;
            }

            emit BaseAprSnapshotTaken(
                lastBaseAprEthPerToken,
                lastBaseAprSnapshotTimestamp,
                currentEthPerToken,
                block.timestamp,
                baseApr,
                newBaseApr
            );

            baseApr = newBaseApr;
            lastBaseAprEthPerToken = currentEthPerToken;
            lastBaseAprSnapshotTimestamp = block.timestamp;
        }

        if (_timeForDiscountSnapshot()) {
            // slither-disable-next-line reentrancy-benign,reentrancy-events
            updateDiscountHistory(currentEthPerToken);
            updateDiscountTimestampByPercent();
        }

        if (_hasSlashingOccurred(currentEthPerToken)) {
            uint256 cost = Stats.calculateUnannualizedNegativeChange(lastSlashingEthPerToken, currentEthPerToken);
            slashingCosts.push(cost);
            slashingTimestamps.push(block.timestamp);

            emit SlashingEventRecorded(cost, block.timestamp);
            emit SlashingSnapshotTaken(
                lastSlashingEthPerToken, lastSlashingSnapshotTimestamp, currentEthPerToken, block.timestamp
            );

            lastSlashingEthPerToken = currentEthPerToken;
            lastSlashingSnapshotTimestamp = block.timestamp;
        } else if (_timeForSlashingSnapshot()) {
            emit SlashingSnapshotTaken(
                lastSlashingEthPerToken, lastSlashingSnapshotTimestamp, currentEthPerToken, block.timestamp
            );
            lastSlashingEthPerToken = currentEthPerToken;
            lastSlashingSnapshotTimestamp = block.timestamp;
        }
    }

    /// @inheritdoc IStatsCalculator
    function shouldSnapshot() public view override returns (bool) {
        // slither-disable-start timestamp
        return _timeForAprSnapshot() || _timeForDiscountSnapshot() || _hasSlashingOccurred(calculateEthPerToken())
            || _timeForSlashingSnapshot();
        // slither-disable-end timestamp
    }

    function _timeForAprSnapshot() private view returns (bool) {
        if (baseAprFilterInitialized) {
            // slither-disable-next-line timestamp
            return block.timestamp >= lastBaseAprSnapshotTimestamp + APR_SNAPSHOT_INTERVAL_IN_SEC;
        } else {
            // slither-disable-next-line timestamp
            return block.timestamp >= lastBaseAprSnapshotTimestamp + APR_FILTER_INIT_INTERVAL_IN_SEC;
        }
    }

    function _timeForDiscountSnapshot() private view returns (bool) {
        // slither-disable-next-line timestamp
        return block.timestamp >= lastDiscountSnapshotTimestamp + DISCOUNT_SNAPSHOT_INTERVAL_IN_SEC;
    }

    function _timeForSlashingSnapshot() private view returns (bool) {
        // slither-disable-next-line timestamp
        return block.timestamp >= lastSlashingSnapshotTimestamp + SLASHING_SNAPSHOT_INTERVAL_IN_SEC;
    }

    function _hasSlashingOccurred(uint256 currentEthPerToken) private view returns (bool) {
        return currentEthPerToken < lastSlashingEthPerToken;
    }

    /// @inheritdoc ILSTStats
    function current() external returns (LSTStatsData memory) {
        uint256 lastSnapshotTimestamp;

        // return the most recent snapshot timestamp
        // the timestamp is used by the LMP to ensure that snapshots are occurring
        // so it is indifferent to which snapshot has occurred
        // slither-disable-next-line timestamp
        if (lastBaseAprSnapshotTimestamp < lastSlashingSnapshotTimestamp) {
            lastSnapshotTimestamp = lastSlashingSnapshotTimestamp;
        } else {
            lastSnapshotTimestamp = lastBaseAprSnapshotTimestamp;
        }

        return LSTStatsData({
            lastSnapshotTimestamp: lastSnapshotTimestamp,
            baseApr: baseApr,
            discount: calculateDiscount(calculateEthPerToken()),
            discountHistory: discountHistory,
            discountTimestampByPercent: discountTimestampByPercent,
            slashingCosts: slashingCosts,
            slashingTimestamps: slashingTimestamps
        });
    }

    function calculateDiscount(uint256 backing) private returns (int256) {
        IRootPriceOracle pricer = systemRegistry.rootPriceOracle();

        // slither-disable-next-line reentrancy-benign
        uint256 price = pricer.getPriceInEth(lstTokenAddress);

        // result is 1e18
        uint256 priceToBacking;
        if (isRebasing()) {
            priceToBacking = price;
        } else {
            // price is always 1e18 and backing is in eth, which is 1e18
            priceToBacking = price * 1e18 / backing;
        }

        // positive value is a discount; negative value is a premium
        return 1e18 - int256(priceToBacking);
    }

    function updateDiscountTimestampByPercent() private {
        uint256 discountHistoryLength = discountHistory.length;
        uint40 previousDiscount =
            discountHistory[(discountHistoryIndex + discountHistoryLength - 2) % discountHistoryLength];
        uint40 currentDiscount =
            discountHistory[(discountHistoryIndex + discountHistoryLength - 1) % discountHistoryLength];

        // for each percent slot ask:
        // "was this not in violation last round and now in violation this round?"
        // if yes, overwrite that slot in discountTimestampByPercent with the current timestamp
        // if no, do nothing
        // TODO: There is gas optimization here with early stopping

        uint40 discountPercent;
        bool inViolationLastSnapshot;
        bool inViolationThisSnapshot;

        // cached for gas efficiency see slither: cache-array-length
        uint40 discountTimestampByPercentLength = uint40(discountTimestampByPercent.length);

        // iterate over 1-5% discounts. max discount = discountTimestampByPercent.length percent
        for (uint40 i; i < discountTimestampByPercentLength; ++i) {
            // 1e5 in discountHistory means a 1% LST discount.
            discountPercent = (i + 1) * 1e5;

            inViolationLastSnapshot = discountPercent <= previousDiscount;
            inViolationThisSnapshot = discountPercent <= currentDiscount;

            if (inViolationThisSnapshot && !inViolationLastSnapshot) {
                discountTimestampByPercent[i] = uint40(block.timestamp);
            }
        }
    }

    function updateDiscountHistory(uint256 backing) private {
        // reduce precision from 18 to 7 to reduce costs
        int256 discount = calculateDiscount(backing) / 1e11;
        uint24 trackedDiscount;
        if (discount <= 0) {
            trackedDiscount = 0;
        } else if (discount >= 1e7) {
            trackedDiscount = 1e7;
        } else {
            trackedDiscount = uint24(uint256(discount));
        }

        discountHistory[discountHistoryIndex] = trackedDiscount;
        discountHistoryIndex = (discountHistoryIndex + 1) % uint8(discountHistory.length);
        // Log event for discount snapshot
        // slither-disable-next-line reentrancy-events
        emit DiscountSnapshotTaken(lastDiscountSnapshotTimestamp, trackedDiscount, block.timestamp);
        lastDiscountSnapshotTimestamp = block.timestamp;
    }

    /// @inheritdoc ILSTStats
    function calculateEthPerToken() public view virtual returns (uint256);

    /// @inheritdoc ILSTStats
    function isRebasing() public view virtual returns (bool);
}

// File: src/interfaces/external/lido/IstEth.sol



// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

interface IstEth {
    function submit(address _referral) external payable returns (uint256);

    function decimals() external view returns (uint8);

    /**
     * @notice Gets the amount of underlyer ETH by share
     * @dev returns answer in 18 decimals of precision.
     */
    function getPooledEthByShares(uint256) external view returns (uint256);
}

// File: src/interfaces/ISystemRegistry.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.

pragma solidity 0.8.17;

import { IWETH9 } from "src/interfaces/utils/IWETH9.sol";
import { IGPToke } from "src/interfaces/staking/IGPToke.sol";
import { ILMPVaultRegistry } from "./vault/ILMPVaultRegistry.sol";
import { IAccessController } from "./security/IAccessController.sol";
import { ISwapRouter } from "src/interfaces/swapper/ISwapRouter.sol";
import { ICurveResolver } from "src/interfaces/utils/ICurveResolver.sol";
import { ILMPVaultRouter } from "src/interfaces/vault/ILMPVaultRouter.sol";
import { ILMPVaultFactory } from "src/interfaces/vault/ILMPVaultFactory.sol";
import { ISystemSecurity } from "src/interfaces/security/ISystemSecurity.sol";
import { IDestinationRegistry } from "./destinations/IDestinationRegistry.sol";
import { IRootPriceOracle } from "src/interfaces/oracles/IRootPriceOracle.sol";
import { ILMPVaultRegistry } from "src/interfaces/vault/ILMPVaultRegistry.sol";
import { IDestinationVaultRegistry } from "./vault/IDestinationVaultRegistry.sol";
import { IAccessController } from "src/interfaces/security/IAccessController.sol";
import { IDestinationRegistry } from "src/interfaces/destinations/IDestinationRegistry.sol";
import { IStatsCalculatorRegistry } from "src/interfaces/stats/IStatsCalculatorRegistry.sol";
import { IAsyncSwapperRegistry } from "src/interfaces/liquidation/IAsyncSwapperRegistry.sol";
import { IDestinationVaultRegistry } from "src/interfaces/vault/IDestinationVaultRegistry.sol";
import { IERC20Metadata } from "openzeppelin-contracts/token/ERC20/extensions/IERC20Metadata.sol";
import { IIncentivesPricingStats } from "src/interfaces/stats/IIncentivesPricingStats.sol";

/// @notice Root most registry contract for the system
interface ISystemRegistry {
    /// @notice Get the TOKE contract for the system
    /// @return toke instance of TOKE used in the system
    function toke() external view returns (IERC20Metadata);

    /// @notice Get the referenced WETH contract for the system
    /// @return weth contract pointer
    function weth() external view returns (IWETH9);

    /// @notice Get the GPToke staking contract
    /// @return gpToke instance of the gpToke contract for the system
    function gpToke() external view returns (IGPToke);

    /// @notice Get the LMP Vault registry for this system
    /// @return registry instance of the registry for this system
    function lmpVaultRegistry() external view returns (ILMPVaultRegistry registry);

    /// @notice Get the destination Vault registry for this system
    /// @return registry instance of the registry for this system
    function destinationVaultRegistry() external view returns (IDestinationVaultRegistry registry);

    /// @notice Get the access Controller for this system
    /// @return controller instance of the access controller for this system
    function accessController() external view returns (IAccessController controller);

    /// @notice Get the destination template registry for this system
    /// @return registry instance of the registry for this system
    function destinationTemplateRegistry() external view returns (IDestinationRegistry registry);

    /// @notice LMP Vault Router
    /// @return router instance of the lmp vault router
    function lmpVaultRouter() external view returns (ILMPVaultRouter router);

    /// @notice Vault factory lookup by type
    /// @return vaultFactory instance of the vault factory for this vault type
    function getLMPVaultFactoryByType(bytes32 vaultType) external view returns (ILMPVaultFactory vaultFactory);

    /// @notice Get the stats calculator registry for this system
    /// @return registry instance of the registry for this system
    function statsCalculatorRegistry() external view returns (IStatsCalculatorRegistry registry);

    /// @notice Get the root price oracle for this system
    /// @return oracle instance of the root price oracle for this system
    function rootPriceOracle() external view returns (IRootPriceOracle oracle);

    /// @notice Get the async swapper registry for this system
    /// @return registry instance of the registry for this system
    function asyncSwapperRegistry() external view returns (IAsyncSwapperRegistry registry);

    /// @notice Get the swap router for this system
    /// @return router instance of the swap router for this system
    function swapRouter() external view returns (ISwapRouter router);

    /// @notice Get the curve resolver for this system
    /// @return resolver instance of the curve resolver for this system
    function curveResolver() external view returns (ICurveResolver resolver);

    /// @notice Register given address as a Reward Token
    /// @dev Reverts if address is 0 or token was already registered
    /// @param rewardToken token address to add
    function addRewardToken(address rewardToken) external;

    /// @notice Removes given address from Reward Token list
    /// @dev Reverts if address was not registered
    /// @param rewardToken token address to remove
    function removeRewardToken(address rewardToken) external;

    /// @notice Verify if given address is registered as Reward Token
    /// @param rewardToken token address to verify
    /// @return bool that indicates true if token is registered and false if not
    function isRewardToken(address rewardToken) external view returns (bool);

    /// @notice Get the system security instance for this system
    /// @return security instance of system security for this system
    function systemSecurity() external view returns (ISystemSecurity security);

    /// @notice Get the Incentive Pricing Stats
    /// @return incentivePricing the incentive pricing contract
    function incentivePricing() external view returns (IIncentivesPricingStats);
}

// File: src/stats/calculators/base/BaseStatsCalculator.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { Stats } from "src/stats/Stats.sol";
import { Roles } from "src/libs/Roles.sol";
import { Errors } from "src/utils/Errors.sol";
import { SecurityBase } from "src/security/SecurityBase.sol";
import { ISystemRegistry } from "src/interfaces/ISystemRegistry.sol";
import { IStatsCalculator } from "src/interfaces/stats/IStatsCalculator.sol";
import { ICurveRegistry } from "src/interfaces/external/curve/ICurveRegistry.sol";
import { IStatsCalculatorRegistry } from "src/interfaces/stats/IStatsCalculatorRegistry.sol";

/// @title Base Stats Calculator
/// @notice Captures common behavior across all calculators
/// @dev Performs security checks and general roll-up behavior
abstract contract BaseStatsCalculator is IStatsCalculator, SecurityBase {
    ISystemRegistry public immutable systemRegistry;

    modifier onlyStatsSnapshot() {
        if (!_hasRole(Roles.STATS_SNAPSHOT_ROLE, msg.sender)) {
            revert Errors.MissingRole(Roles.STATS_SNAPSHOT_ROLE, msg.sender);
        }
        _;
    }

    constructor(ISystemRegistry _systemRegistry) SecurityBase(address(_systemRegistry.accessController())) {
        systemRegistry = _systemRegistry;
    }

    /// @inheritdoc IStatsCalculator
    function snapshot() external override onlyStatsSnapshot {
        if (!shouldSnapshot()) {
            revert NoSnapshotTaken();
        }
        _snapshot();
    }

    /// @notice Capture stat data about this setup
    /// @dev This is protected by the STATS_SNAPSHOT_ROLE
    function _snapshot() internal virtual;

    /// @inheritdoc IStatsCalculator
    function shouldSnapshot() public view virtual returns (bool takeSnapshot);
}

// File: lib/openzeppelin-contracts/contracts/proxy/utils/Initializable.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.1) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.2;

import "../../utils/Address.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.
     *
     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
     * constructor.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!Address.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 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.
     *
     * 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.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * 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.
     *
     * WARNING: setting the version to 255 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _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.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized < type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint8) {
        return _initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _initializing;
    }
}

// File: src/interfaces/stats/ILSTStats.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { Stats } from "src/stats/Stats.sol";
import { ISystemRegistry } from "src/interfaces/ISystemRegistry.sol";

/// @title Return stats on base LSTs
interface ILSTStats {
    struct LSTStatsData {
        uint256 lastSnapshotTimestamp;
        uint256 baseApr;
        int256 discount; // positive number is a discount, negative is a premium
        uint24[10] discountHistory; // 7 decimal precision
        uint40[5] discountTimestampByPercent; // each index is the timestamp that the token reached that discount
        uint256[] slashingCosts;
        uint256[] slashingTimestamps;
    }

    /// @notice Get the current stats for the LST
    /// @dev Returned data is a combination of current data and filtered snapshots
    /// @return lstStatsData current data on the LST
    function current() external returns (LSTStatsData memory lstStatsData);

    /// @notice Get the EthPerToken (or Share) for the LST
    /// @return ethPerShare the backing eth for the LST
    function calculateEthPerToken() external view returns (uint256 ethPerShare);

    /// @notice Get if the underlying LST token is rebasing
    /// @return rebasing is true if the lst is a rebasing token
    function isRebasing() external view returns (bool rebasing);
}

// File: src/interfaces/stats/IStatsCalculator.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

/// @title Capture information about a pool or destination
interface IStatsCalculator {
    /// @notice thrown when no snapshot is taken
    error NoSnapshotTaken();

    /// @notice The id for this instance of a calculator
    function getAprId() external view returns (bytes32);

    /// @notice The id of the underlying asset/pool/destination this calculator represents
    /// @dev This may be a generated address
    function getAddressId() external view returns (address);

    /// @notice Setup the calculator after it has been copied
    /// @dev Should only be executed one time
    /// @param dependentAprIds apr ids that cover the dependencies of this calculator
    /// @param initData setup data specific to this type of calculator
    function initialize(bytes32[] calldata dependentAprIds, bytes calldata initData) external;

    /// @notice Capture stat data about this setup
    function snapshot() external;

    /// @notice Indicates if a snapshot should be taken
    /// @return takeSnapshot if true then a snapshot should be taken. If false, calling snapshot will do nothing
    function shouldSnapshot() external view returns (bool takeSnapshot);
}

// File: src/stats/Stats.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IStatsCalculator } from "src/interfaces/stats/IStatsCalculator.sol";
import { Errors } from "src/utils/Errors.sol";

library Stats {
    uint256 public constant SECONDS_IN_YEAR = 365 * 24 * 60 * 60;
    uint256 public constant DEX_FEE_APR_SNAPSHOT_INTERVAL = 24 * 60 * 60; // daily
    uint256 public constant DEX_FEE_APR_FILTER_INIT_INTERVAL = 9 * 24 * 60 * 60; // 9 days
    uint256 public constant DEX_FEE_ALPHA = 1e17; // 0.1; must be less than 1e18

    uint256 public constant INCENTIVE_INFO_SNAPSHOT_INTERVAL = 24 * 60 * 60; // daily

    address public constant CURVE_ETH = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

    /// @notice thrown if end timestamp is before start timestamp
    error IncorrectTimestamps();

    /// @notice thrown if a divisor is zero
    error ZeroDivisor();

    /// @notice thrown if expecting a negative change but get a positive change
    error NonNegativeChange();

    /// @dev When registering dependent calculators, use this value for tokens/pools/etc that should be ignored
    bytes32 public constant NOOP_APR_ID = keccak256(abi.encode("NOOP_APR_ID"));

    error CalculatorAssetMismatch(bytes32 aprId, address calculator, address coin);

    error DependentAprIdsMismatchTokens(uint256 numDependentAprIds, uint256 numCoins);

    /// @notice Generate an id for a stat calc representing a base ERC20
    /// @dev For rETH/stETH/cbETH etc. Do not use for pools, LP tokens, staking platforms.
    /// @param tokenAddress address of the token
    function generateRawTokenIdentifier(address tokenAddress) internal pure returns (bytes32) {
        return keccak256(abi.encode("erc20-v2-", tokenAddress));
    }

    /// @notice Generate an aprId for a curve pool
    /// @param poolAddress address of the curve pool
    function generateCurvePoolIdentifier(address poolAddress) internal pure returns (bytes32) {
        return keccak256(abi.encode("curve", poolAddress));
    }

    /// @notice Generate an aprId for a balancer pool
    /// @param poolAddress address of the balancer pool
    function generateBalancerPoolIdentifier(address poolAddress) internal pure returns (bytes32) {
        return keccak256(abi.encode("balancer", poolAddress));
    }

    function calculateAnnualizedChangeMinZero(
        uint256 startTimestamp,
        uint256 startValue,
        uint256 endTimestamp,
        uint256 endValue
    ) internal pure returns (uint256) {
        if (startValue == 0) revert ZeroDivisor();
        if (endTimestamp <= startTimestamp) revert IncorrectTimestamps();
        if (endValue <= startValue) return 0;

        uint256 unannualized = (endValue * 1e18) / startValue - 1e18;
        uint256 timeDiff = endTimestamp - startTimestamp;

        return unannualized * SECONDS_IN_YEAR / timeDiff;
    }

    function calculateUnannualizedNegativeChange(
        uint256 startValue,
        uint256 endValue
    ) internal pure returns (uint256) {
        if (startValue == 0) revert ZeroDivisor();
        if (endValue >= startValue) revert NonNegativeChange();

        return (startValue - endValue) * 1e18 / startValue;
    }

    function getFilteredValue(
        uint256 alpha,
        uint256 priorValue,
        uint256 currentValue
    ) internal pure returns (uint256) {
        if (alpha > 1e18 || alpha == 0) revert Errors.InvalidParam("alpha");
        return ((priorValue * (1e18 - alpha)) + (currentValue * alpha)) / 1e18;
    }
}

// File: src/security/SecurityBase.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IAccessController } from "src/interfaces/security/IAccessController.sol";
import { Context } from "openzeppelin-contracts/utils/Context.sol";
import { Errors } from "src/utils/Errors.sol";

contract SecurityBase {
    IAccessController public immutable accessController;

    error UndefinedAddress();

    constructor(address _accessController) {
        if (_accessController == address(0)) revert UndefinedAddress();

        accessController = IAccessController(_accessController);
    }

    modifier onlyOwner() {
        accessController.verifyOwner(msg.sender);
        _;
    }

    modifier hasRole(bytes32 role) {
        if (!accessController.hasRole(role, msg.sender)) revert Errors.AccessDenied();
        _;
    }

    ///////////////////////////////////////////////////////////////////
    //
    //  Forward all the regular methods to central security module
    //
    ///////////////////////////////////////////////////////////////////

    function _hasRole(bytes32 role, address account) internal view returns (bool) {
        return accessController.hasRole(role, account);
    }

    // NOTE: left commented forward methods in here for potential future use
    //     function _getRoleAdmin(bytes32 role) internal view returns (bytes32) {
    //         return accessController.getRoleAdmin(role);
    //     }
    //
    //     function _grantRole(bytes32 role, address account) internal {
    //         accessController.grantRole(role, account);
    //     }
    //
    //     function _revokeRole(bytes32 role, address account) internal {
    //         accessController.revokeRole(role, account);
    //     }
    //
    //     function _renounceRole(bytes32 role, address account) internal {
    //         accessController.renounceRole(role, account);
    //     }
}

// File: src/interfaces/oracles/IRootPriceOracle.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.

pragma solidity 0.8.17;

/// @notice Retrieve a price for any token used in the system
interface IRootPriceOracle {
    /// @notice Returns a fair price for the provided token in ETH
    /// @param token token to get the price of
    /// @return price the price of the token in ETH
    function getPriceInEth(address token) external returns (uint256 price);

    /// @notice Returns a spot price for the provided token in ETH, utilizing specified liquidity pool
    /// @param token token to get the spot price of
    /// @param pool liquidity pool to be used for price determination
    /// @return price the spot price of the token in ETH based on the provided pool
    function getSpotPriceInEth(address token, address pool) external returns (uint256);
}

// File: src/interfaces/utils/IWETH9.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.7;

import { IERC20 } from "openzeppelin-contracts/token/ERC20/IERC20.sol";

interface IWETH9 is IERC20 {
    function symbol() external view returns (string memory);

    function deposit() external payable;
    function withdraw(uint256 amount) external;
}

// File: src/interfaces/staking/IGPToke.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IERC20Metadata } from "openzeppelin-contracts/token/ERC20/extensions/IERC20Metadata.sol";

interface IGPToke {
    ///////////////////////////////////////////////////////////////////
    //                        Variables
    ///////////////////////////////////////////////////////////////////

    function startEpoch() external view returns (uint256);
    function minStakeDuration() external view returns (uint256);

    struct Lockup {
        uint128 amount;
        uint128 end;
        uint256 points;
    }

    function getLockups(address user) external view returns (Lockup[] memory);
    function toke() external view returns (IERC20Metadata);

    ///////////////////////////////////////////////////////////////////
    //                        Errors
    ///////////////////////////////////////////////////////////////////

    error ZeroAddress();
    error StakingDurationTooShort();
    error StakingDurationTooLong();
    error StakingPointsExceeded();
    error IncorrectStakingAmount();
    error InsufficientFunds();
    error LockupDoesNotExist();
    error NotUnlockableYet();
    error AlreadyUnlocked();
    error ExtendDurationTooShort();
    error TransfersDisabled();
    error TransferFailed();
    error NoRewardsToClaim();
    error InsufficientAmount();

    ///////////////////////////////////////////////////////////////////
    //                        Events
    ///////////////////////////////////////////////////////////////////
    event SetMaxStakeDuration(uint256 oldDuration, uint256 newDuration);
    event Stake(address indexed user, uint256 lockupId, uint256 amount, uint256 end, uint256 points);
    event Unstake(address indexed user, uint256 lockupId, uint256 amount, uint256 end, uint256 points);
    event Extend(
        address indexed user,
        uint256 lockupId,
        uint256 amount,
        uint256 oldEnd,
        uint256 newEnd,
        uint256 oldPoints,
        uint256 newPoints
    );
    event RewardsAdded(uint256 amount, uint256 accRewardPerShare);
    event RewardsCollected(address indexed user, uint256 amount);
    event RewardsClaimed(address indexed user, uint256 amount);

    ///////////////////////////////////////////////////////////////////
    //
    //                        Staking Methods
    //
    ///////////////////////////////////////////////////////////////////

    /**
     * @notice Stake TOKE to an address that may not be the same as the sender of the funds. This can be used to give
     * staked funds to someone else.
     *
     * If staking before the start of staking (epoch), then the lockup start and end dates are shifted forward so that
     * the lockup starts at the epoch.
     *
     * @param amount TOKE to lockup in the stake
     * @param duration in seconds for the stake
     * @param to address to receive ownership of the stake
     */
    function stake(uint256 amount, uint256 duration, address to) external;

    /**
     * @notice Stake TOKE
     *
     * If staking before the start of staking (epoch), then the lockup start and end dates are shifted forward so that
     * the lockup starts at the epoch.
     *
     * @notice Stake TOKE for myself.
     * @param amount TOKE to lockup in the stake
     * @param duration in seconds for the stake
     */
    function stake(uint256 amount, uint256 duration) external;

    /**
     * @notice Collect staked OGV for a lockup and any earned rewards.
     * @param lockupId the id of the lockup to unstake
     */
    function unstake(uint256 lockupId) external;

    /**
     * @notice Extend a stake lockup for additional points.
     *
     * The stake end time is computed from the current time + duration, just like it is for new stakes. So a new stake
     * for seven days duration and an old stake extended with a seven days duration would have the same end.
     *
     * If an extend is made before the start of staking, the start time for the new stake is shifted forwards to the
     * start of staking, which also shifts forward the end date.
     *
     * @param lockupId the id of the old lockup to extend
     * @param duration number of seconds from now to stake for
     */
    function extend(uint256 lockupId, uint256 duration) external;

    ///////////////////////////////////////////////////////////////////
    //
    //                        Rewards
    //
    ///////////////////////////////////////////////////////////////////

    /// @notice The total amount of rewards earned for all stakes
    function totalRewardsEarned() external returns (uint256);

    /// @notice Total rewards claimed by all stakers
    function totalRewardsClaimed() external returns (uint256);

    /// @notice Rewards claimed by a specific wallet
    /// @param user Address of the wallet to check
    function rewardsClaimed(address user) external returns (uint256);

    /**
     * @notice Preview the number of points that would be returned for the
     * given amount and duration.
     *
     * @param amount TOKE to be staked
     * @param duration number of seconds to stake for
     * @return points staking points that would be returned
     * @return end staking period end date
     */
    function previewPoints(uint256 amount, uint256 duration) external view returns (uint256, uint256);

    /// @notice Preview the reward amount a caller can claim
    function previewRewards() external view returns (uint256);

    /// @notice Preview the reward amount a specified wallet can claim
    function previewRewards(address user) external view returns (uint256);

    /// @notice Claim rewards for the caller
    function collectRewards() external returns (uint256);

    /// @notice Check if amount can be staked
    function isStakeableAmount(uint256 amount) external pure returns (bool);
}

// File: src/interfaces/vault/ILMPVaultRegistry.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

/// @title Keep track of Vaults created through the Vault Factory
interface ILMPVaultRegistry {
    ///////////////////////////////////////////////////////////////////
    //                        Errors
    ///////////////////////////////////////////////////////////////////

    error VaultNotFound(address vaultAddress);
    error VaultAlreadyExists(address vaultAddress);

    ///////////////////////////////////////////////////////////////////
    //                        Events
    ///////////////////////////////////////////////////////////////////
    event VaultAdded(address indexed asset, address indexed vault);
    event VaultRemoved(address indexed asset, address indexed vault);

    ///////////////////////////////////////////////////////////////////
    //                        Functions
    ///////////////////////////////////////////////////////////////////

    /// @notice Checks if an address is a valid vault
    /// @param vaultAddress Vault address to be added
    function isVault(address vaultAddress) external view returns (bool);

    /// @notice Registers a vault
    /// @param vaultAddress Vault address to be added
    function addVault(address vaultAddress) external;

    /// @notice Removes vault registration
    /// @param vaultAddress Vault address to be removed
    function removeVault(address vaultAddress) external;

    /// @notice Returns a list of all registered vaults
    function listVaults() external view returns (address[] memory);

    /// @notice Returns a list of all registered vaults for a given asset
    /// @param asset Asset address
    function listVaultsForAsset(address asset) external view returns (address[] memory);

    /// @notice Returns a list of all registered vaults for a given type
    /// @param _vaultType Vault type
    function listVaultsForType(bytes32 _vaultType) external view returns (address[] memory);
}

// File: src/interfaces/security/IAccessController.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IAccessControlEnumerable } from "openzeppelin-contracts/access/IAccessControlEnumerable.sol";

interface IAccessController is IAccessControlEnumerable {
    error AccessDenied();

    function setupRole(bytes32 role, address account) external;

    function verifyOwner(address account) external view;
}

// File: src/interfaces/swapper/ISwapRouter.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { ISyncSwapper } from "./ISyncSwapper.sol";

interface ISwapRouter {
    struct SwapData {
        address token;
        address pool;
        ISyncSwapper swapper;
        bytes data;
    }

    error MaxSlippageExceeded();
    error SwapRouteLookupFailed();
    error SwapFailed();

    event SwapRouteSet(address indexed token, SwapData[] routes);
    event SwapForQuoteSuccessful(
        address indexed assetToken,
        uint256 sellAmount,
        address indexed quoteToken,
        uint256 minBuyAmount,
        uint256 buyAmount
    );

    /**
     * @notice Sets a new swap route for a given asset token.
     * @param assetToken The asset token for which the swap route is being set.
     * @param _swapRoute The new swap route as an array of SwapData. The last element represents the quoteToken.
     * @dev Each 'hop' in the swap route is validated using the respective swapper's validate function. The validate
     * function ensures that the encoded data contains the correct 'fromAddress' and 'toAddress' (swapData.token), and
     * verifies that these tokens are in the pool.
     */
    function setSwapRoute(address assetToken, SwapData[] calldata _swapRoute) external;

    /**
     * @notice Swaps the asset token for the quote token.
     * @dev We're adopting an "exact in, variable out" model for all our swaps. This ensures that the entire sellAmount
     * is used, eliminating the need for additional balance checks and refunds. This model is expected to be followed by
     * all swapper implementations to maintain consistency and to optimize for gas efficiency.
     * @param assetToken The address of the asset token to swap.
     * @param sellAmount The exact amount of the asset token to swap.
     * @param quoteToken The address of the quote token.
     * @param minBuyAmount The minimum amount of the quote token expected to be received from the swap.
     * @return The amount received from the swap.
     */
    function swapForQuote(
        address assetToken,
        uint256 sellAmount,
        address quoteToken,
        uint256 minBuyAmount
    ) external returns (uint256);
}

// File: src/interfaces/utils/ICurveResolver.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.

pragma solidity 0.8.17;

interface ICurveResolver {
    /// @notice Resolve details of a Curve pool regardless of type or version
    /// @dev This resolves tokens without unwrapping to underlying in the case of meta pools.
    /// If you need a dynamic array of tokens use Arrays.convertFixedCurveTokenArrayToDynamic(tokens,numTokens)
    /// @param poolAddress pool address to lookup
    /// @return tokens tokens that make up the pool
    /// @return numTokens the number of tokens. tokens are not unwrapped.
    /// @return isStableSwap is this a StableSwap pool. false = CryptoSwap
    function resolve(address poolAddress)
        external
        view
        returns (address[8] memory tokens, uint256 numTokens, bool isStableSwap);

    /// @notice Resolve details of a Curve pool regardless of type or version
    /// @dev This resolves tokens without unwrapping to underlying in the case of meta pools.
    /// If you need a dynamic array of tokens use Arrays.convertFixedCurveTokenArrayToDynamic(tokens,numTokens)
    /// @param poolAddress pool address to lookup
    /// @return tokens tokens that make up the pool
    /// @return numTokens the number of tokens. tokens are not unwrapped
    /// @return lpToken lp token of the pool
    /// @return isStableSwap is this a StableSwap pool. false = CryptoSwap
    function resolveWithLpToken(address poolAddress)
        external
        view
        returns (address[8] memory tokens, uint256 numTokens, address lpToken, bool isStableSwap);

    /// @notice Get the lp token of a Curve pool
    /// @param poolAddress pool address to lookup
    function getLpToken(address poolAddress) external view returns (address);
}

// File: src/interfaces/vault/ILMPVaultRouter.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { ILMPVault } from "src/interfaces/vault/ILMPVault.sol";
import { ILMPVaultRouterBase } from "src/interfaces/vault/ILMPVaultRouterBase.sol";
import { IAsyncSwapper, SwapParams } from "src/interfaces/liquidation/IAsyncSwapper.sol";

/**
 * @title ILMPVaultRouter Interface
 * @notice Extends the ILMPVaultRouterBase with specific flows to save gas
 */
interface ILMPVaultRouter is ILMPVaultRouterBase {
    /**
     * ***************************   Deposit ********************************
     */

    /**
     * @notice swap and deposit max assets to a LMPVault.
     * @dev The goal is to deposit whatever amount is received from the swap into the vault such as depositMax.
     * Balances are checked in the swapper function.
     * @param swapper The address of the swapper contract.
     * @param swapParams The swap parameters.
     * @param vault The ILMPVault contract.
     * @param to The address to receive the deposited amount.
     * @param minSharesOut The minimum amount of shares to be received as output.
     * @return sharesOut The amount of shares deposited into the vault.
     */
    function swapAndDepositToVault(
        address swapper,
        SwapParams memory swapParams,
        ILMPVault vault,
        address to,
        uint256 minSharesOut
    ) external returns (uint256 sharesOut);

    /**
     * @notice deposit max assets to a LMPVault.
     * @param vault The LMPVault to deposit assets to.
     * @param to The destination of ownership shares.
     * @param minSharesOut The min amount of `vault` shares received by `to`.
     * @return sharesOut the amount of shares received by `to`.
     * @dev throws MinSharesError
     */
    function depositMax(ILMPVault vault, address to, uint256 minSharesOut) external returns (uint256 sharesOut);

    /**
     * *************************   Withdraw   **********************************
     */

    /**
     * @notice withdraw `amount` to a LMPVault.
     * @param fromVault The LMPVault to withdraw assets from.
     * @param toVault The LMPVault to deposit assets to.
     * @param to The destination of ownership shares.
     * @param amount The amount of assets to withdraw from fromVault.
     * @param maxSharesIn The max amount of fromVault shares withdrawn by caller.
     * @param minSharesOut The min amount of toVault shares received by `to`.
     * @return sharesOut the amount of shares received by `to`.
     * @dev throws MaxSharesError, MinSharesError
     */
    function withdrawToDeposit(
        ILMPVault fromVault,
        ILMPVault toVault,
        address to,
        uint256 amount,
        uint256 maxSharesIn,
        uint256 minSharesOut
    ) external returns (uint256 sharesOut);

    /**
     * *************************   Redeem    ********************************
     */

    /**
     * @notice redeem `shares` to a LMPVault.
     * @param fromVault The LMPVault to redeem shares from.
     * @param toVault The LMPVault to deposit assets to.
     * @param to The destination of ownership shares.
     * @param shares The amount of shares to redeem from fromVault.
     * @param minSharesOut The min amount of toVault shares received by `to`.
     * @return sharesOut the amount of shares received by `to`.
     * @dev throws MinAmountError, MinSharesError
     */
    function redeemToDeposit(
        ILMPVault fromVault,
        ILMPVault toVault,
        address to,
        uint256 shares,
        uint256 minSharesOut
    ) external returns (uint256 sharesOut);

    /**
     * @notice redeem max shares to a LMPVault.
     * @param vault The LMPVault to redeem shares from.
     * @param to The destination of assets.
     * @param minAmountOut The min amount of assets received by `to`.
     * @return amountOut the amount of assets received by `to`.
     * @dev throws MinAmountError
     */
    function redeemMax(ILMPVault vault, address to, uint256 minAmountOut) external returns (uint256 amountOut);
}

// File: src/interfaces/vault/ILMPVaultFactory.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

interface ILMPVaultFactory {
    ///////////////////////////////////////////////////////////////////
    //                        Vault Creation
    ///////////////////////////////////////////////////////////////////

    /**
     * @notice Spin up a new LMPVault
     * @param supplyLimit Total supply limit for the new vault
     * @param walletLimit Wallet limit for the new vault
     * @param symbolSuffix Symbol suffix of the new token
     * @param descPrefix Description prefix of the new token
     * @param salt Vault creation salt
     * @param extraParams Any extra data needed for the vault
     */
    function createVault(
        uint256 supplyLimit,
        uint256 walletLimit,
        string memory symbolSuffix,
        string memory descPrefix,
        bytes32 salt,
        bytes calldata extraParams
    ) external returns (address newVaultAddress);
}

// File: src/interfaces/security/ISystemSecurity.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

interface ISystemSecurity {
    /// @notice Get the number of NAV/share operations currently in progress
    /// @return Number of operations
    function navOpsInProgress() external view returns (uint256);

    /// @notice Called at the start of any NAV/share changing operation
    function enterNavOperation() external;

    /// @notice Called at the end of any NAV/share changing operation
    function exitNavOperation() external;

    /// @notice Whether or not the system as a whole is paused
    function isSystemPaused() external view returns (bool);
}

// File: src/interfaces/destinations/IDestinationRegistry.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IDestinationAdapter } from "src/interfaces/destinations/IDestinationAdapter.sol";

interface IDestinationRegistry {
    event Register(bytes32[] indexed destinationTypes, address[] indexed targets);
    event Replace(bytes32[] indexed destinationTypes, address[] indexed targets);
    event Unregister(bytes32[] indexed destinationTypes);

    event Whitelist(bytes32[] indexed destinationTypes);
    event RemoveFromWhitelist(bytes32[] indexed destinationTypes);

    error InvalidAddress(address addr);
    error NotAllowedDestination();
    error DestinationAlreadySet();

    /**
     * @notice Adds a new addresses of the given destination types
     * @dev Fails if trying to overwrite previous value of the same destination type
     * @param destinationTypes Ones from the destination type whitelist
     * @param targets addresses of the deployed DestinationAdapters, cannot be 0
     */
    function register(bytes32[] calldata destinationTypes, address[] calldata targets) external;

    /**
     * @notice Replaces an addresses of the given destination types
     * @dev Fails if given destination type was not set previously
     * @param destinationTypes Ones from the destination type whitelist
     * @param targets addresses of the deployed DestinationAdapters, cannot be 0
     */
    function replace(bytes32[] calldata destinationTypes, address[] calldata targets) external;

    /**
     * @notice Removes an addresses of the given pre-registered destination types
     * @param destinationTypes Ones from the destination types whitelist
     */
    function unregister(bytes32[] calldata destinationTypes) external;

    /**
     * @notice Gives an address of the given destination type
     * @dev Should revert on missing destination
     * @param destination One from the destination type whitelist
     */
    function getAdapter(bytes32 destination) external returns (IDestinationAdapter);

    /**
     * @notice Adds given destination types to the whitelist
     * @param destinationTypes Types to whitelist
     */
    function addToWhitelist(bytes32[] calldata destinationTypes) external;

    /**
     * @notice Removes given pre-whitelisted destination types
     * @param destinationTypes Ones from the destination type whitelist
     */
    function removeFromWhitelist(bytes32[] calldata destinationTypes) external;

    /**
     * @notice Checks if the given destination type is whitelisted
     * @param destinationType Type to verify
     */
    function isWhitelistedDestination(bytes32 destinationType) external view returns (bool);
}

// File: src/interfaces/vault/IDestinationVaultRegistry.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IDestinationVaultFactory } from "src/interfaces/vault/IDestinationVaultFactory.sol";

/// @notice Tracks valid Destination Vaults for the system
interface IDestinationVaultRegistry {
    /// @notice Determines if a given address is a valid Destination Vault in the system
    /// @param destinationVault address to check
    /// @return True if vault is registered
    function isRegistered(address destinationVault) external view returns (bool);

    /// @notice Registers a new Destination Vault
    /// @dev Should be locked down to only a factory
    /// @param newDestinationVault Address of the new vault
    function register(address newDestinationVault) external;

    /// @notice Checks if an address is a valid Destination Vault and reverts if not
    /// @param destinationVault Destination Vault address to checked
    function verifyIsRegistered(address destinationVault) external view;

    /// @notice Returns a list of all registered vaults
    function listVaults() external view returns (address[] memory);

    /// @notice Factory that is allowed to create and registry Destination Vaults
    function factory() external view returns (IDestinationVaultFactory);
}

// File: src/interfaces/stats/IStatsCalculatorRegistry.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IStatsCalculator } from "src/interfaces/stats/IStatsCalculator.sol";

/// @notice Track stat calculators for this instance of the system
interface IStatsCalculatorRegistry {
    /// @notice Get a registered calculator
    /// @dev Should revert if missing
    /// @param aprId key of the calculator to get
    /// @return calculator instance of the calculator
    function getCalculator(bytes32 aprId) external view returns (IStatsCalculator calculator);

    /// @notice Register a new stats calculator
    /// @param calculator address of the calculator
    function register(address calculator) external;
}

// File: src/interfaces/liquidation/IAsyncSwapperRegistry.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

interface IAsyncSwapperRegistry {
    event SwapperAdded(address indexed item);
    event SwapperRemoved(address indexed item);

    /// @notice Registers an item
    /// @param item Item address to be added
    function register(address item) external;

    /// @notice Removes item registration
    /// @param item Item address to be removed
    function unregister(address item) external;

    /// @notice Returns a list of all registered items
    function list() external view returns (address[] memory);

    /// @notice Checks if an address is a valid item
    /// @param item Item address to be checked
    function isRegistered(address item) external view returns (bool);

    /// @notice Checks if an address is a valid swapper and reverts if not
    /// @param item Swapper address to be checked
    function verifyIsRegistered(address item) external view;
}

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



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

pragma solidity ^0.8.0;

import "../IERC20.sol";

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

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

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

// File: src/interfaces/stats/IIncentivesPricingStats.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

/// @title EWMA pricing for incentive tokens
interface IIncentivesPricingStats {
    event TokenAdded(address indexed token);
    event TokenRemoved(address indexed token);
    event TokenSnapshot(
        address indexed token,
        uint40 lastSnapshot,
        uint256 fastFilterPrice,
        uint256 slowFilterPrice,
        uint256 initCount,
        bool initComplete
    );

    error TokenAlreadyRegistered(address token);
    error TokenNotFound(address token);
    error IncentiveTokenPriceStale(address token);
    error TokenSnapshotNotReady(address token);

    struct TokenSnapshotInfo {
        uint40 lastSnapshot;
        bool _initComplete;
        uint8 _initCount;
        uint256 _initAcc;
        uint256 fastFilterPrice;
        uint256 slowFilterPrice;
    }

    /// @notice add a token to snapshot
    /// @dev the token must be configured in the RootPriceOracle before adding here
    /// @param token the address of the token to add
    function setRegisteredToken(address token) external;

    /// @notice remove a token from being snapshot
    /// @param token the address of the token to remove
    function removeRegisteredToken(address token) external;

    /// @notice get the addresses for all currently registered tokens
    /// @return tokens all of the registered token addresses
    function getRegisteredTokens() external view returns (address[] memory tokens);

    /// @notice get all of the registered tokens with the latest snapshot info
    /// @return tokenAddresses token addresses in the same order as info
    /// @return info a list of snapshot info for the tokens
    function getTokenPricingInfo()
        external
        view
        returns (address[] memory tokenAddresses, TokenSnapshotInfo[] memory info);

    /// @notice update the snapshot for the specified tokens
    /// @dev if a token is not ready to be snapshot the entire call will fail
    function snapshot(address[] calldata tokensToSnapshot) external;

    /// @notice get the latest prices for an incentive token. Reverts if token is not registered
    /// @return fastPrice the price based on the faster filter (weighted toward current prices)
    /// @return slowPrice the price based on the slower filter (weighted toward older prices, relative to fast)
    function getPrice(address token, uint40 staleCheck) external view returns (uint256 fastPrice, uint256 slowPrice);

    /// @notice get the latest prices for an incentive token or zero if the token is not registered
    /// @return fastPrice the price based on the faster filter (weighted toward current prices)
    /// @return slowPrice the price based on the slower filter (weighted toward older prices, relative to fast)
    function getPriceOrZero(
        address token,
        uint40 staleCheck
    ) external view returns (uint256 fastPrice, uint256 slowPrice);
}

// File: src/libs/Roles.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.

pragma solidity 0.8.17;

library Roles {
    // --------------------------------------------------------------------
    // Central roles list used by all contracts that call AccessController
    // --------------------------------------------------------------------

    bytes32 public constant REBALANCER_ROLE = keccak256("REBALANCER_ROLE");
    bytes32 public constant CREATE_POOL_ROLE = keccak256("CREATE_POOL_ROLE");
    bytes32 public constant CREATE_DESTINATION_VAULT_ROLE = keccak256("CREATE_DESTINATION_VAULT_ROLE");
    bytes32 public constant REGISTRY_UPDATER = keccak256("REGISTRY_UPDATER");

    bytes32 public constant TOKEN_RECOVERY_ROLE = keccak256("TOKEN_RECOVERY_ROLE");
    bytes32 public constant DESTINATION_VAULTS_UPDATER = keccak256("DESTINATION_VAULTS_UPDATER");
    bytes32 public constant SET_WITHDRAWAL_QUEUE_ROLE = keccak256("SET_WITHDRAWAL_QUEUE_ROLE");

    bytes32 public constant DESTINATION_VAULT_OPERATOR_ROLE = keccak256("DESTINATION_VAULT_OPERATOR_ROLE");

    bytes32 public constant DV_REWARD_MANAGER_ROLE = keccak256("DV_REWARD_MANAGER_ROLE");
    bytes32 public constant LMP_REWARD_MANAGER_ROLE = keccak256("LMP_REWARD_MANAGER_ROLE");
    bytes32 public constant EXTRA_REWARD_MANAGER_ROLE = keccak256("EXTRA_REWARD_MANAGER_ROLE");

    bytes32 public constant LIQUIDATOR_ROLE = keccak256("LIQUIDATOR_ROLE");

    bytes32 public constant CREATE_STATS_CALC_ROLE = keccak256("CREATE_STATS_CALC_ROLE");
    bytes32 public constant STATS_CALC_TEMPLATE_MGMT_ROLE = keccak256("STATS_CALC_TEMPLATE_MGMT_ROLE");
    bytes32 public constant STATS_SNAPSHOT_ROLE = keccak256("STATS_SNAPSHOT_ROLE");
    bytes32 public constant STATS_INCENTIVE_TOKEN_UPDATER = keccak256("STATS_INCENTIVE_TOKEN_UPDATER");

    bytes32 public constant SOLVER_ROLE = keccak256("SOLVER_ROLE");

    bytes32 public constant LMP_FEE_SETTER_ROLE = keccak256("LMP_FEE_SETTER_ROLE");

    bytes32 public constant EMERGENCY_PAUSER = keccak256("EMERGENCY_PAUSER");

    bytes32 public constant ORACLE_MANAGER_ROLE = keccak256("ORACLE_MANAGER_ROLE");

    bytes32 public constant LSD_BACKING_UPDATER = keccak256("LSD_BACKING_UPDATER");

    bytes32 public constant LMP_UPDATE_DEBT_REPORTING_ROLE = keccak256("LMP_UPDATE_DEBT_REPORTING_ROLE");
}

// File: src/utils/Errors.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { Address } from "openzeppelin-contracts/utils/Address.sol";

library Errors {
    using Address for address;
    ///////////////////////////////////////////////////////////////////
    //                       Set errors
    ///////////////////////////////////////////////////////////////////

    error AccessDenied();
    error ZeroAddress(string paramName);
    error ZeroAmount();
    error InsufficientBalance(address token);
    error AssetNotAllowed(address token);
    error NotImplemented();
    error InvalidAddress(address addr);
    error InvalidParam(string paramName);
    error InvalidParams();
    error AlreadySet(string param);
    error SlippageExceeded(uint256 expected, uint256 actual);
    error ArrayLengthMismatch(uint256 length1, uint256 length2, string details);

    error ItemNotFound();
    error ItemExists();
    error MissingRole(bytes32 role, address user);
    error RegistryItemMissing(string item);
    error NotRegistered();
    // Used to check storage slot is empty before setting.
    error MustBeZero();
    // Used to check storage slot set before deleting.
    error MustBeSet();

    error ApprovalFailed(address token);
    error FlashLoanFailed(address token, uint256 amount);

    error SystemMismatch(address source1, address source2);

    error InvalidToken(address token);

    function verifyNotZero(address addr, string memory paramName) internal pure {
        if (addr == address(0)) {
            revert ZeroAddress(paramName);
        }
    }

    function verifyNotZero(bytes32 key, string memory paramName) internal pure {
        if (key == bytes32(0)) {
            revert InvalidParam(paramName);
        }
    }

    function verifyNotEmpty(string memory val, string memory paramName) internal pure {
        if (bytes(val).length == 0) {
            revert InvalidParam(paramName);
        }
    }

    function verifyNotZero(uint256 num, string memory paramName) internal pure {
        if (num == 0) {
            revert InvalidParam(paramName);
        }
    }

    function verifySystemsMatch(address component1, address component2) internal view {
        bytes memory call = abi.encodeWithSignature("getSystemRegistry()");

        address registry1 = abi.decode(component1.functionStaticCall(call), (address));
        address registry2 = abi.decode(component2.functionStaticCall(call), (address));

        if (registry1 != registry2) {
            revert SystemMismatch(component1, component2);
        }
    }

    function verifyArrayLengths(uint256 length1, uint256 length2, string memory details) external pure {
        if (length1 != length2) {
            revert ArrayLengthMismatch(length1, length2, details);
        }
    }
}

// File: src/interfaces/external/curve/ICurveRegistry.sol



// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

// solhint-disable func-name-mixedcase

interface ICurveRegistry {
    /**
     * @notice Gets lp token address for Curve pool.
     * @param pool Address of pool to get lp token for.
     */
    function get_lp_token(address pool) external view returns (address);

    /**
     * @notice Gets number of coins in pool.
     * @dev First value is coins in metaPool, second is including underlying pool.
     * @dev Each array value will be the same when pool is not meta or lending pool.
     * @param pool Address of pool to get coins for.
     */
    function get_n_coins(address pool) external view returns (uint256[2] memory);

    /**
     * @notice Gets array of all coins in a pool.
     * @dev Will return address(0) for array slots that are not filled.
     * @param pool Address of pool to get coins for.
     */
    function get_coins(address pool) external view returns (address[8] memory);

    /**
     * @notice Returns balances for pool tokens.
     * @dev Will returns zero for unused array slots.
     * @param pool Address of pool to get balances for.
     */
    function get_balances(address pool) external view returns (uint256[8] memory);

    /**
     * @notice Gets pool address given lp token address.
     * @param lpToken Address of lp token being used to get pool address.
     */
    function get_pool_from_lp_token(address lpToken) external view returns (address);
}

// File: lib/openzeppelin-contracts/contracts/utils/Address.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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 functionCallWithValue(target, data, 0, "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");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, 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) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or 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 {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // 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
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// 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: 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/access/IAccessControlEnumerable.sol



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

pragma solidity ^0.8.0;

import "./IAccessControl.sol";

/**
 * @dev External interface of AccessControlEnumerable declared to support ERC165 detection.
 */
interface IAccessControlEnumerable is IAccessControl {
    /**
     * @dev Returns one of the accounts that have `role`. `index` must be a
     * value between 0 and {getRoleMemberCount}, non-inclusive.
     *
     * Role bearers are not sorted in any particular way, and their ordering may
     * change at any point.
     *
     * WARNING: When using {getRoleMember} and {getRoleMemberCount}, make sure
     * you perform all queries on the same block. See the following
     * https://forum.openzeppelin.com/t/iterating-over-elements-on-enumerableset-in-openzeppelin-contracts/2296[forum post]
     * for more information.
     */
    function getRoleMember(bytes32 role, uint256 index) external view returns (address);

    /**
     * @dev Returns the number of accounts that have `role`. Can be used
     * together with {getRoleMember} to enumerate all bearers of a role.
     */
    function getRoleMemberCount(bytes32 role) external view returns (uint256);
}

// File: src/interfaces/swapper/ISyncSwapper.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { ISwapRouter } from "src/interfaces/swapper/ISwapRouter.sol";

interface ISyncSwapper {
    error DataMismatch(string element);
    error InvalidIndex();

    /**
     * @notice Swaps sellToken for buyToken
     * @param pool The address of the pool for the swapper
     * @param sellTokenAddress The address of the token to sell
     * @param sellAmount The amount of sellToken to sell
     * @param buyTokenAddress The address of the token to buy
     * @param minBuyAmount The minimum amount of buyToken expected
     * @param data Additional data used differently by the different swappers
     * @return actualBuyAmount The actual amount received from the swap
     */
    function swap(
        address pool,
        address sellTokenAddress,
        uint256 sellAmount,
        address buyTokenAddress,
        uint256 minBuyAmount,
        bytes memory data
    ) external returns (uint256 actualBuyAmount);

    /**
     * @notice Validates that the swapData contains the correct information, ensuring that the encoded data contains the
     * correct 'fromAddress' and 'toAddress' (swapData.token), and verifies that these tokens are in the pool
     * @dev This function should revert with a DataMismatch error if the swapData is invalid
     * @param fromAddress The address from which the swap originates
     * @param swapData The data associated with the swap that needs to be validated
     */
    function validate(address fromAddress, ISwapRouter.SwapData memory swapData) external view;
}

// File: src/interfaces/vault/ILMPVault.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IERC4626 } from "openzeppelin-contracts/interfaces/IERC4626.sol";
import { IERC20Permit } from "openzeppelin-contracts/token/ERC20/extensions/draft-IERC20Permit.sol";
import { IDestinationVault } from "src/interfaces/vault/IDestinationVault.sol";
import { IStrategy } from "src/interfaces/strategy/IStrategy.sol";

interface ILMPVault is IERC4626, IERC20Permit {
    enum VaultShutdownStatus {
        Active,
        Deprecated,
        Exploit
    }

    /* ******************************** */
    /*      Events                      */
    /* ******************************** */
    event TokensPulled(address[] tokens, uint256[] amounts, address[] destinations);
    event TokensRecovered(address[] tokens, uint256[] amounts, address[] destinations);
    event Nav(uint256 idle, uint256 debt, uint256 totalSupply);
    event RewarderSet(address rewarder);
    event DestinationDebtReporting(address destination, uint256 debtValue, uint256 claimed, uint256 claimGasUsed);
    event FeeCollected(uint256 fees, address feeSink, uint256 mintedShares, uint256 profit, uint256 idle, uint256 debt);
    event Shutdown(VaultShutdownStatus reason);

    /* ******************************** */
    /*      Errors                      */
    /* ******************************** */

    error ERC4626MintExceedsMax(uint256 shares, uint256 maxMint);
    error ERC4626DepositExceedsMax(uint256 assets, uint256 maxDeposit);
    error ERC4626ExceededMaxWithdraw(address owner, uint256 assets, uint256 max);
    error ERC4626ExceededMaxRedeem(address owner, uint256 shares, uint256 max);
    error AmountExceedsAllowance(uint256 shares, uint256 allowed);
    error InvalidShutdownStatus(VaultShutdownStatus status);

    error WithdrawalFailed();
    error DepositFailed();
    error InsufficientFundsInDestinations(uint256 deficit);
    error WithdrawalIncomplete();

    /// @notice Query the type of vault
    function vaultType() external view returns (bytes32);

    /// @notice Allow token recoverer to collect dust / unintended transfers (non-tracked assets only)
    function recover(address[] calldata tokens, uint256[] calldata amounts, address[] calldata destinations) external;

    /// @notice Set the order of destination vaults used for withdrawals
    // NOTE: will be done going directly to strategy (IStrategy) vault points to.
    //       How it'll delegate is still being decided
    // function setWithdrawalQueue(address[] calldata destinations) external;

    /// @notice Claim Accrued Rewards
    function claimRewards() external;

    /// @notice Set the withdrawal queue to be used when taking out Assets
    /// @param _destinations The ordered list of destination vaults to go for withdrawals
    function setWithdrawalQueue(address[] calldata _destinations) external;

    /// @notice Get the withdrawal queue to be used when taking out Assets
    function getWithdrawalQueue() external returns (IDestinationVault[] memory _destinations);

    /// @notice Get a list of destination vaults with pending assets to clear out
    function getRemovalQueue() external view returns (address[] memory);

    /// @notice Remove emptied destination vault from pending removal queue
    function removeFromRemovalQueue(address vaultToRemove) external;

    /// @notice Initiate the shutdown procedures for this vault
    function shutdown(VaultShutdownStatus reason) external;

    /// @notice True if the vault has been shutdown
    function isShutdown() external view returns (bool);

    /// @notice Returns the reason for shutdown (or `Active` if not shutdown)
    function shutdownStatus() external view returns (VaultShutdownStatus);

    /// @notice gets the list of supported destination vaults for the LMP/Strategy
    /// @return _destinations List of supported destination vaults
    function getDestinations() external view returns (address[] memory _destinations);

    /// @notice Current performance fee taken on profit. 100% == 10000
    function performanceFeeBps() external view returns (uint256);

    /// @notice The amount of baseAsset deposited into the contract pending deployment
    function totalIdle() external view returns (uint256);

    /// @notice The current (though cached) value of assets we've deployed
    function totalDebt() external view returns (uint256);
}

// File: src/interfaces/vault/ILMPVaultRouterBase.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity >=0.8.7;

import { ILMPVault } from "./ILMPVault.sol";

/**
 * @title LMPVault Router Base Interface
 * @notice A canonical router between LMPVaults
 *
 * The base router is a multicall style router inspired by Uniswap v3 with built-in features for permit,
 * WETH9 wrap/unwrap, and ERC20 token pulling/sweeping/approving. It includes methods for the four mutable
 * ERC4626 functions deposit/mint/withdraw/redeem as well.
 *
 * These can all be arbitrarily composed using the multicall functionality of the router.
 *
 * NOTE the router is capable of pulling any approved token from your wallet. This is only possible when
 * your address is msg.sender, but regardless be careful when interacting with the router or ERC4626 Vaults.
 * The router makes no special considerations for unique ERC20 implementations such as fee on transfer.
 * There are no built in protections for unexpected behavior beyond enforcing the minSharesOut is received.
 */
interface ILMPVaultRouterBase {
    /// @notice thrown when amount of assets received is below the min set by caller
    error MinAmountError();

    /// @notice thrown when amount of shares received is below the min set by caller
    error MinSharesError();

    /// @notice thrown when amount of assets received is above the max set by caller
    error MaxAmountError();

    /// @notice thrown when amount of shares received is above the max set by caller
    error MaxSharesError();

    /**
     * @notice mint `shares` from an ERC4626 vault.
     * @param vault The LMPVault to mint shares from.
     * @param to The destination of ownership shares.
     * @param shares The amount of shares to mint from `vault`.
     * @param maxAmountIn The max amount of assets used to mint.
     * @return amountIn the amount of assets used to mint by `to`.
     * @dev throws MaxAmountError
     */
    function mint(
        ILMPVault vault,
        address to,
        uint256 shares,
        uint256 maxAmountIn
    ) external payable returns (uint256 amountIn);

    /**
     * @notice deposit `amount` to an ERC4626 vault.
     * @param vault The LMPVault to deposit assets to.
     * @param to The destination of ownership shares.
     * @param amount The amount of assets to deposit to `vault`.
     * @param minSharesOut The min amount of `vault` shares received by `to`.
     * @return sharesOut the amount of shares received by `to`.
     * @dev throws MinSharesError
     */
    function deposit(
        ILMPVault vault,
        address to,
        uint256 amount,
        uint256 minSharesOut
    ) external payable returns (uint256 sharesOut);

    /**
     * @notice withdraw `amount` from an ERC4626 vault.
     * @param vault The LMPVault to withdraw assets from.
     * @param to The destination of assets.
     * @param amount The amount of assets to withdraw from vault.
     * @param maxSharesOut The max amount of shares burned for assets requested.
     * @param unwrapWETH If true, unwrap WETH9 to ETH before sending to `to`.
     * @return sharesOut the amount of shares received by `to`.
     * @dev throws MaxSharesError
     */
    function withdraw(
        ILMPVault vault,
        address to,
        uint256 amount,
        uint256 maxSharesOut,
        bool unwrapWETH
    ) external payable returns (uint256 sharesOut);

    /**
     * @notice redeem `shares` shares from a LMPVault
     * @param vault The LMPVault to redeem shares from.
     * @param to The destination of assets.
     * @param shares The amount of shares to redeem from vault.
     * @param minAmountOut The min amount of assets received by `to`.
     * @param unwrapWETH If true, unwrap WETH9 to ETH before sending to `to`.
     * @return amountOut the amount of assets received by `to`.
     * @dev throws MinAmountError
     */
    function redeem(
        ILMPVault vault,
        address to,
        uint256 shares,
        uint256 minAmountOut,
        bool unwrapWETH
    ) external payable returns (uint256 amountOut);
}

// File: src/interfaces/liquidation/IAsyncSwapper.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

struct SwapParams {
    /// @dev The address of the token to be sold.
    address sellTokenAddress;
    /// @dev The amount of tokens to be sold.
    uint256 sellAmount;
    /// @dev The address of the token to be bought.
    address buyTokenAddress;
    /// @dev The expected minimum amount of tokens to be bought.
    uint256 buyAmount;
    /// @dev Data payload to be used for complex swap operations.
    bytes data;
    /// @dev Extra data payload reserved for future development. This field allows for additional information
    /// or functionality to be added without changing the struct and interface.
    bytes extraData;
}

interface IAsyncSwapper {
    error TokenAddressZero();
    error SwapFailed();
    error InsufficientBuyAmountReceived(uint256 buyTokenAmountReceived, uint256 buyAmount);
    error InsufficientSellAmount();
    error InsufficientBuyAmount();
    error InsufficientBalance(uint256 balanceNeeded, uint256 balanceAvailable);

    event Swapped(
        address indexed sellTokenAddress,
        address indexed buyTokenAddress,
        uint256 sellAmount,
        uint256 buyAmount,
        uint256 buyTokenAmountReceived
    );

    /**
     * @notice Swaps sellToken for buyToken
     * @param swapParams Encoded swap data
     * @return buyTokenAmountReceived The amount of buyToken received from the swap
     */
    function swap(SwapParams memory swapParams) external returns (uint256 buyTokenAmountReceived);
}

// File: src/interfaces/destinations/IDestinationAdapter.sol



// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

/**
 * @title IDestinationAdapter
 * @dev This is a super-interface to unify different types of adapters to be registered in Destination Registry.
 *      Specific interface type is defined by extending from this interface.
 */
interface IDestinationAdapter {
    error MustBeMoreThanZero();
    error ArraysLengthMismatch();
    error BalanceMustIncrease();
    error MinLpAmountNotReached();
    error LpTokenAmountMismatch();
    error NoNonZeroAmountProvided();
    error InvalidBalanceChange();
    error InvalidAddress(address);
}

// File: src/interfaces/vault/IDestinationVaultFactory.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { ISystemComponent } from "src/interfaces/ISystemComponent.sol";
import { ISystemRegistry } from "src/interfaces/ISystemRegistry.sol";

/// @notice Creates and registers Destination Vaults for the system
interface IDestinationVaultFactory is ISystemComponent {
    /// @notice Creates a vault of the specified type
    /// @dev vaultType will be bytes32 encoded and checked that a template is registered
    /// @param vaultType human readable key of the vault template
    /// @param baseAsset Base asset of the system. WETH/USDC/etc
    /// @param underlyer Underlying asset the vault will wrap
    /// @param additionalTrackedTokens Any tokens in addition to base and underlyer that should be tracked
    /// @param salt Contracts are created via CREATE2 with this value
    /// @param params params to be passed to vaults initialize function
    /// @return vault address of the newly created destination vault
    function create(
        string memory vaultType,
        address baseAsset,
        address underlyer,
        address[] memory additionalTrackedTokens,
        bytes32 salt,
        bytes memory params
    ) external returns (address vault);
}

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



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

pragma solidity ^0.8.0;

/**
 * @dev External interface of AccessControl declared to support ERC165 detection.
 */
interface IAccessControl {
    /**
     * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
     *
     * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
     * {RoleAdminChanged} not being emitted signaling this.
     *
     * _Available since v3.1._
     */
    event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);

    /**
     * @dev Emitted when `account` is granted `role`.
     *
     * `sender` is the account that originated the contract call, an admin role
     * bearer except when using {AccessControl-_setupRole}.
     */
    event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Emitted when `account` is revoked `role`.
     *
     * `sender` is the account that originated the contract call:
     *   - if using `revokeRole`, it is the admin role bearer
     *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
     */
    event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);

    /**
     * @dev Returns `true` if `account` has been granted `role`.
     */
    function hasRole(bytes32 role, address account) external view returns (bool);

    /**
     * @dev Returns the admin role that controls `role`. See {grantRole} and
     * {revokeRole}.
     *
     * To change a role's admin, use {AccessControl-_setRoleAdmin}.
     */
    function getRoleAdmin(bytes32 role) external view returns (bytes32);

    /**
     * @dev Grants `role` to `account`.
     *
     * If `account` had not been already granted `role`, emits a {RoleGranted}
     * event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function grantRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from `account`.
     *
     * If `account` had been granted `role`, emits a {RoleRevoked} event.
     *
     * Requirements:
     *
     * - the caller must have ``role``'s admin role.
     */
    function revokeRole(bytes32 role, address account) external;

    /**
     * @dev Revokes `role` from the calling account.
     *
     * Roles are often managed via {grantRole} and {revokeRole}: this function's
     * purpose is to provide a mechanism for accounts to lose their privileges
     * if they are compromised (such as when a trusted device is misplaced).
     *
     * If the calling account had been granted `role`, emits a {RoleRevoked}
     * event.
     *
     * Requirements:
     *
     * - the caller must be `account`.
     */
    function renounceRole(bytes32 role, address account) external;
}

// File: lib/openzeppelin-contracts/contracts/interfaces/IERC4626.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (interfaces/IERC4626.sol)

pragma solidity ^0.8.0;

import "../token/ERC20/IERC20.sol";
import "../token/ERC20/extensions/IERC20Metadata.sol";

/**
 * @dev Interface of the ERC4626 "Tokenized Vault Standard", as defined in
 * https://eips.ethereum.org/EIPS/eip-4626[ERC-4626].
 *
 * _Available since v4.7._
 */
interface IERC4626 is IERC20, IERC20Metadata {
    event Deposit(address indexed sender, address indexed owner, uint256 assets, uint256 shares);

    event Withdraw(
        address indexed sender,
        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/extensions/draft-IERC20Permit.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// File: src/interfaces/vault/IDestinationVault.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IERC20Metadata as IERC20 } from "openzeppelin-contracts/token/ERC20/extensions/IERC20Metadata.sol";

import { IBaseAssetVault } from "./IBaseAssetVault.sol";
import { IMainRewarder } from "src/interfaces/rewarders/IMainRewarder.sol";
import { IERC20Metadata as IERC20 } from "openzeppelin-contracts/token/ERC20/extensions/IERC20Metadata.sol";
import { IDexLSTStats } from "src/interfaces/stats/IDexLSTStats.sol";

interface IDestinationVault is IBaseAssetVault, IERC20 {
    enum VaultShutdownStatus {
        Active,
        Deprecated,
        Exploit
    }

    error LogicDefect();
    error UnreachableError();
    error BaseAmountReceived(uint256 amount);

    /* ******************************** */
    /* View                             */
    /* ******************************** */

    /// @notice The asset that is deposited into the vault
    function underlying() external view returns (address);

    /// @notice The asset that rewards and withdrawals to LMP is done in
    /// @inheritdoc IBaseAssetVault
    function baseAsset() external view override returns (address);

    /// @notice Debt balance of underlying asset that is in contract.  This
    ///     value includes only assets that are known as debt by the rest of the
    ///     system (i.e. transferred in on rebalance), and does not include
    ///     extraneous amounts of underlyer that may have ended up in this contract.
    function internalDebtBalance() external view returns (uint256);

    /// @notice Debt balance of underlyering asset staked externally.  This value only
    ///     includes assets known as debt to the rest of the system, and does not include
    ///     any assets staked on behalf of the DV in external contracts.
    function externalDebtBalance() external view returns (uint256);

    /// @notice Returns true value of _underlyer in DV.  Debt + tokens that may have
    ///     been transferred into the contract outside of rebalance.
    function internalQueriedBalance() external view returns (uint256);

    /// @notice Returns true value of staked _underlyer in external contract.  This
    ///     will include any _underlyer that has been staked on behalf of the DV.
    function externalQueriedBalance() external view returns (uint256);

    /// @notice Balance of underlying debt, sum of `externalDebtBalance()` and `internalDebtBalance()`.
    function balanceOfUnderlyingDebt() external view returns (uint256);

    /// @notice Rewarder for this vault
    function rewarder() external view returns (address);

    /// @notice Exchange this destination vault points to
    function exchangeName() external view returns (string memory);

    /// @notice Tokens that base asset can be swapped into
    function underlyingTokens() external view returns (address[] memory);

    /* ******************************** */
    /* Events                           */
    /* ******************************** */

    event Donated(address sender, uint256 amount);
    event Withdraw(
        uint256 target, uint256 actual, uint256 debtLoss, uint256 claimLoss, uint256 fromIdle, uint256 fromDebt
    );

    /* ******************************** */
    /* Errors                           */
    /* ******************************** */

    error ZeroAddress(string paramName);
    error InvalidShutdownStatus(VaultShutdownStatus status);

    /* ******************************** */
    /* Functions                        */
    /* ******************************** */

    /// @notice Setup the contract. These will be cloned so no constructor
    /// @param baseAsset_ Base asset of the system. WETH/USDC/etc
    /// @param underlyer_ Underlying asset the vault will wrap
    /// @param rewarder_ Reward tracker for this vault
    /// @param additionalTrackedTokens_ Additional tokens that should be considered 'tracked'
    /// @param params_ Any extra parameters needed to setup the contract
    function initialize(
        IERC20 baseAsset_,
        IERC20 underlyer_,
        IMainRewarder rewarder_,
        address[] memory additionalTrackedTokens_,
        bytes memory params_
    ) external;

    /// @notice Calculates the current value of our debt
    /// @dev Queries the current value of all tokens we have deployed, whether its a single place, multiple, staked, etc
    /// @return value The current value of our debt in terms of the baseAsset
    function debtValue() external returns (uint256 value);

    /// @notice Calculates the current value of a portion of the debt based on shares
    /// @dev Queries the current value of all tokens we have deployed, whether its a single place, multiple, staked, etc
    /// @param shares The number of shares to value
    /// @return value The current value of our debt in terms of the baseAsset
    function debtValue(uint256 shares) external returns (uint256 value);

    /// @notice Collects any earned rewards from staking, incentives, etc. Transfers to sender
    /// @dev Should be limited to LIQUIDATOR_ROLE. Rewards must be collected before claimed
    /// @return amounts amount of rewards claimed for each token
    /// @return tokens tokens claimed
    function collectRewards() external returns (uint256[] memory amounts, address[] memory tokens);

    /// @notice Pull any non-tracked token to the specified destination
    /// @dev Should be limited to TOKEN_RECOVERY_ROLE
    function recover(address[] calldata tokens, uint256[] calldata amounts, address[] calldata destinations) external;

    /// @notice Deposit underlying to receive destination vault shares
    /// @param amount amount of base lp asset to deposit
    function depositUnderlying(uint256 amount) external returns (uint256 shares);

    /// @notice Withdraw underlying by burning destination vault shares
    /// @param shares amount of destination vault shares to burn
    /// @param to destination of the underlying asset
    /// @return amount underlyer amount 'to' received
    function withdrawUnderlying(uint256 shares, address to) external returns (uint256 amount);

    /// @notice Burn specified shares for underlyer swapped to base asset
    /// @param shares amount of vault shares to burn
    /// @param to destination of the base asset
    /// @return amount base asset amount 'to' received
    function withdrawBaseAsset(uint256 shares, address to) external returns (uint256 amount);

    /// @notice Estimate the base asset amount that can be withdrawn given a certain number of shares. This function
    /// performs a "simulation" of the withdrawal process. It will actually execute the withdrawal, but will then revert
    /// the transaction, returning the estimated amount in the revert reason.
    /// @param shares The number of shares to be used in the estimation.
    /// @param to The address to receive the withdrawn amount.
    /// @param account Address involved in the withdrawal; Must be set to address(0).
    /// @return The estimated base asset amount.
    function estimateWithdrawBaseAsset(uint256 shares, address to, address account) external returns (uint256);

    /// @notice Initiate the shutdown procedures for this vault
    /// @dev Should pull back tokens from staking locations
    function shutdown(VaultShutdownStatus reason) external;

    /// @notice True if the vault has been shutdown
    function isShutdown() external view returns (bool);

    /// @notice Returns the reason for shutdown (or `Active` if not shutdown)
    function shutdownStatus() external view returns (VaultShutdownStatus);

    /// @notice Stats contract for this vault
    function getStats() external returns (IDexLSTStats);

    /// @notice get the marketplace rewards
    /// @return rewardTokens list of reward token addresses
    /// @return rewardRates list of reward rates
    function getMarketplaceRewards() external returns (uint256[] memory rewardTokens, uint256[] memory rewardRates);
}

// File: src/interfaces/strategy/IStrategy.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IDestinationVault } from "../vault/IDestinationVault.sol";
import { IERC3156FlashBorrower } from "openzeppelin-contracts/interfaces/IERC3156FlashBorrower.sol";

interface IStrategy {
    /* ******************************** */
    /*      Events                      */
    /* ******************************** */
    event DestinationVaultAdded(address destination);
    event DestinationVaultRemoved(address destination);
    event WithdrawalQueueSet(address[] destinations);
    event AddedToRemovalQueue(address destination);
    event RemovedFromRemovalQueue(address destination);

    error InvalidDestinationVault();

    error RebalanceFailed(string message);

    /// @notice gets the list of supported destination vaults for the LMP/Strategy
    /// @return _destinations List of supported destination vaults
    function getDestinations() external view returns (address[] memory _destinations);

    /// @notice add supported destination vaults for the LMP/Strategy
    /// @param _destinations The list of destination vaults to add
    function addDestinations(address[] calldata _destinations) external;

    /// @notice remove supported destination vaults for the LMP/Strategy
    /// @param _destinations The list of destination vaults to remove
    function removeDestinations(address[] calldata _destinations) external;

    /// @param destinationIn The address / lp token of the destination vault that will increase
    /// @param tokenIn The address of the underlyer token that will be provided by the swapper
    /// @param amountIn The amount of the underlying LP tokens that will be received
    /// @param destinationOut The address of the destination vault that will decrease
    /// @param tokenOut The address of the underlyer token that will be received by the swapper
    /// @param amountOut The amount of the tokenOut that will be received by the swapper
    struct RebalanceParams {
        address destinationIn;
        address tokenIn;
        uint256 amountIn;
        address destinationOut;
        address tokenOut;
        uint256 amountOut;
    }

    /// @notice rebalance the LMP from the tokenOut (decrease) to the tokenIn (increase)
    function rebalance(RebalanceParams memory params) external;

    /// @notice rebalance the LMP from the tokenOut (decrease) to the tokenIn (increase)
    /// This uses a flash loan to receive the tokenOut to reduce the working capital requirements of the swapper
    /// @param receiver The contract receiving the tokens, needs to implement the
    /// `onFlashLoan(address user, address token, uint256 amount, uint256 fee, bytes calldata)` interface
    /// @param params Parameters by which to perform the rebalance
    /// @param data A data parameter to be passed on to the `receiver` for any custom use
    function flashRebalance(
        IERC3156FlashBorrower receiver,
        RebalanceParams calldata params,
        bytes calldata data
    ) external;

    /// @notice verify that a rebalance (swap between destinations) meets all the strategy constraints
    /// @param destinationIn The address of the destination vault that will increase
    /// @param tokenIn The address of the destination vault token that will be provided by the swapper
    /// @param amountIn The amount of the tokenIn that will be provided by the swapper
    /// @param destinationOut The address of the destination vault that will decrease
    /// @param tokenOut The address of the destination vault token that will be received by the swapper
    /// @param amountOut The amount of the tokenOut that will be received by the swapper
    function verifyRebalance(
        address destinationIn,
        address tokenIn,
        uint256 amountIn,
        address destinationOut,
        address tokenOut,
        uint256 amountOut
    ) external returns (bool success, string memory message);
}

// File: src/interfaces/ISystemComponent.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

/// @notice Stores a reference to the registry for this system
interface ISystemComponent {
    /// @notice The system instance this contract is tied to
    function getSystemRegistry() external view returns (address registry);
}

// File: src/interfaces/vault/IBaseAssetVault.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IERC20Metadata as IERC20 } from "openzeppelin-contracts/token/ERC20/extensions/IERC20Metadata.sol";

interface IBaseAssetVault {
    /// @notice Asset that this Vault primarily manages
    /// @dev Vault decimals should be the same as the baseAsset
    function baseAsset() external view returns (address);
}

// File: src/interfaces/rewarders/IMainRewarder.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IBaseRewarder } from "./IBaseRewarder.sol";
import { IExtraRewarder } from "src/interfaces/rewarders/IExtraRewarder.sol";

interface IMainRewarder is IBaseRewarder {
    error ExtraRewardsNotAllowed();

    event ExtraRewardAdded(address reward);
    event ExtraRewardsCleared();
    event ExtraRewardRemoved(address reward);

    /**
     * @notice Adds an ExtraRewarder contract address to the extraRewards array.
     * @param reward The address of the ExtraRewarder contract.
     */
    function addExtraReward(address reward) external;

    /**
     * @notice Withdraws the specified amount of tokens from the vault for the specified account, and transfers all
     * rewards for the account from this contract and any linked extra reward contracts.
     * @param account The address of the account to withdraw tokens and claim rewards for.
     * @param amount The amount of tokens to withdraw.
     * @param claim If true, claims all rewards for the account from this contract and any linked extra reward
     * contracts.
     */
    function withdraw(address account, uint256 amount, bool claim) external;

    /**
     * @notice Clears the extraRewards array.
     */
    function clearExtraRewards() external;

    /**
     * @notice Claims and transfers all rewards for the specified account from this contract and any linked extra reward
     * contracts.
     * @dev If claimExtras is true, also claims all rewards from linked extra reward contracts.
     * @param account The address of the account to claim rewards for.
     * @param claimExtras If true, claims rewards from linked extra reward contracts.
     */
    function getReward(address account, bool claimExtras) external;

    /**
     * @notice Number of extra rewards currently registered
     */
    function extraRewardsLength() external view returns (uint256);

    /**
     * @notice Get the rewarder at the specified index
     */
    function getExtraRewarder(uint256 index) external view returns (IExtraRewarder);

    /**
     * @notice Token that is tracked as the deposit token
     * @dev Rewards don't actually take possession of token
     */
    function stakeTracker() external view returns (address);
}

// File: src/interfaces/stats/IDexLSTStats.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { Stats } from "src/stats/Stats.sol";
import { ISystemRegistry } from "src/interfaces/ISystemRegistry.sol";
import { ILSTStats } from "src/interfaces/stats/ILSTStats.sol";

/// @title Return stats DEXs with LSTs
interface IDexLSTStats {
    event DexSnapshotTaken(uint256 snapshotTimestamp, uint256 priorFeeApr, uint256 newFeeApr, uint256 unfilteredFeeApr);

    struct StakingIncentiveStats {
        // time-weighted average total supply to prevent spikes/attacks from impacting rebalancing
        uint256 safeTotalSupply;
        // rewardTokens, annualizedRewardAmounts, and periodFinishForRewards will match indexes
        // they are split to workaround an issue with forge having nested structs
        // address of the reward tokens
        address[] rewardTokens;
        // the annualized reward rate for the reward token
        uint256[] annualizedRewardAmounts;
        // the timestamp for when the rewards are set to terminate
        uint40[] periodFinishForRewards;
        // incentive rewards score. max 48, min 0
        uint8 incentiveCredits;
    }

    struct DexLSTStatsData {
        uint256 lastSnapshotTimestamp;
        uint256 feeApr;
        uint256[] reservesInEth;
        StakingIncentiveStats stakingIncentiveStats;
        ILSTStats.LSTStatsData[] lstStatsData;
    }

    /// @notice Get the current stats for the DEX with underlying LST tokens
    /// @dev Returned data is a combination of current data and filtered snapshots
    /// @return dexLSTStatsData current data on the DEX
    function current() external returns (DexLSTStatsData memory dexLSTStatsData);
}

// File: lib/openzeppelin-contracts/contracts/interfaces/IERC3156FlashBorrower.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (interfaces/IERC3156FlashBorrower.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC3156 FlashBorrower, as defined in
 * https://eips.ethereum.org/EIPS/eip-3156[ERC-3156].
 *
 * _Available since v4.1._
 */
interface IERC3156FlashBorrower {
    /**
     * @dev Receive a flash loan.
     * @param initiator The initiator of the loan.
     * @param token The loan currency.
     * @param amount The amount of tokens lent.
     * @param fee The additional amount of tokens to repay.
     * @param data Arbitrary data structure, intended to contain user-defined parameters.
     * @return The keccak256 hash of "IERC3156FlashBorrower.onFlashLoan"
     */
    function onFlashLoan(
        address initiator,
        address token,
        uint256 amount,
        uint256 fee,
        bytes calldata data
    ) external returns (bytes32);
}

// File: src/interfaces/rewarders/IBaseRewarder.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IStakeTracking } from "src/interfaces/rewarders/IStakeTracking.sol";

interface IBaseRewarder {
    event RewardAdded(
        uint256 reward,
        uint256 rewardRate,
        uint256 lastUpdateBlock,
        uint256 periodInBlockFinish,
        uint256 historicalRewards
    );
    event UserRewardUpdated(
        address indexed user, uint256 amount, uint256 rewardPerTokenStored, uint256 lastUpdateBlock
    );
    event Staked(address indexed user, uint256 amount);
    event Withdrawn(address indexed user, uint256 amount);
    event RewardPaid(address indexed user, uint256 reward);
    event QueuedRewardsUpdated(uint256 startingQueuedRewards, uint256 startingNewRewards, uint256 queuedRewards);
    event AddedToWhitelist(address indexed wallet);
    event RemovedFromWhitelist(address indexed wallet);

    event TokeLockDurationUpdated(uint256 newDuration);

    /**
     * @notice Claims and transfers all rewards for the specified account
     */
    function getReward() external;

    /**
     * @notice Stakes the specified amount of tokens for the specified account.
     * @param account The address of the account to stake tokens for.
     * @param amount The amount of tokens to stake.
     */
    function stake(address account, uint256 amount) external;

    /**
     * @notice Calculate the earned rewards for an account.
     * @param account Address of the account.
     * @return The earned rewards for the given account.
     */
    function earned(address account) external view returns (uint256);

    /**
     * @notice Calculates the rewards per token for the current block.
     * @dev The total amount of rewards available in the system is fixed, and it needs to be distributed among the users
     * based on their token balances and staking duration.
     * Rewards per token represent the amount of rewards that each token is entitled to receive at the current block.
     * The calculation takes into account the reward rate, the time duration since the last update,
     * and the total supply of tokens in the staking pool.
     * @return The updated rewards per token value for the current block.
     */
    function rewardPerToken() external view returns (uint256);

    /**
     * @notice Get the current reward rate per block.
     * @return The current reward rate per block.
     */
    function rewardRate() external view returns (uint256);

    /**
     * @notice Get the current TOKE lock duration.
     * @return The current TOKE lock duration.
     */
    function tokeLockDuration() external view returns (uint256);

    /**
     * @notice Get the last block where rewards are applicable.
     * @return The last block number where rewards are applicable.
     */
    function lastBlockRewardApplicable() external view returns (uint256);

    /**
     * @notice The total amount of tokens staked
     */
    function totalSupply() external view returns (uint256);

    /**
     * @notice The amount of tokens staked for the specified account
     * @param account The address of the account to get the balance of
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @notice Queue new rewards to be distributed.
     * @param newRewards The amount of new rewards to be queued.
     */
    function queueNewRewards(uint256 newRewards) external;

    /**
     * @notice Token distributed as rewards
     * @return reward token address
     */
    function rewardToken() external view returns (address);

    /**
     * @notice Add an address to the whitelist.
     * @param wallet The address to be added to the whitelist.
     */
    function addToWhitelist(address wallet) external;

    /**
     * @notice Remove an address from the whitelist.
     * @param wallet The address to be removed from the whitelist.
     */
    function removeFromWhitelist(address wallet) external;

    /**
     * @notice Check if an address is whitelisted.
     * @param wallet The address to be checked.
     * @return bool indicating if the address is whitelisted.
     */
    function isWhitelisted(address wallet) external view returns (bool);
}

// File: src/interfaces/rewarders/IExtraRewarder.sol



// SPDX-License-Identifier: UNLICENSED
// Copyright (c) 2023 Tokemak Ops Ltd. All rights reserved.
pragma solidity 0.8.17;

import { IBaseRewarder } from "./IBaseRewarder.sol";

interface IExtraRewarder is IBaseRewarder {
    /**
     * @notice Withdraws the specified amount of tokens from the vault for the specified account.
     * @param account The address of the account to withdraw tokens for.
     * @param amount The amount of tokens to withdraw.
     */
    function withdraw(address account, uint256 amount) external;

    /**
     * @notice Claims and transfers all rewards for the specified account from this contract.
     * @param account The address of the account to claim rewards for.
     */
    function getReward(address account) external;
}

// File: src/interfaces/rewarders/IStakeTracking.sol



// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity 0.8.17;

interface IStakeTracking {
    function totalSupply() external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
}