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



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

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

import { ISystemRegistry } from "src/interfaces/ISystemRegistry.sol";
import { IBalancerComposableStablePool } from "src/interfaces/external/balancer/IBalancerComposableStablePool.sol";
import { BalancerStablePoolCalculatorBase } from "src/stats/calculators/base/BalancerStablePoolCalculatorBase.sol";
import { BalancerUtilities } from "src/libs/BalancerUtilities.sol";

contract BalancerMetaStablePoolCalculator is BalancerStablePoolCalculatorBase {
    constructor(
        ISystemRegistry _systemRegistry,
        address _balancerVault
    ) BalancerStablePoolCalculatorBase(_systemRegistry, _balancerVault) { }

    function getVirtualPrice() internal view override returns (uint256 virtualPrice) {
        virtualPrice = BalancerUtilities._getMetaStableVirtualPrice(balancerVault, poolAddress);
    }

    function getPoolTokens() internal view override returns (IERC20[] memory tokens, uint256[] memory balances) {
        (tokens, balances) = BalancerUtilities._getPoolTokens(balancerVault, poolAddress);
    }
}

// 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: 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/interfaces/external/balancer/IBalancerComposableStablePool.sol



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

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

interface IBalancerComposableStablePool {
    function getActualSupply() external view returns (uint256);

    function getBptIndex() external view returns (uint256);

    function getPoolId() external view returns (bytes32);

    function getRate() external view returns (uint256);

    function getTokenRate(IERC20 token) external view returns (uint256);
}

// File: src/stats/calculators/base/BalancerStablePoolCalculatorBase.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 { Errors } from "src/utils/Errors.sol";
import { ISystemRegistry } from "src/interfaces/ISystemRegistry.sol";
import { IStatsCalculator } from "src/interfaces/stats/IStatsCalculator.sol";
import { IDexLSTStats } from "src/interfaces/stats/IDexLSTStats.sol";
import { Initializable } from "openzeppelin-contracts/proxy/utils/Initializable.sol";
import { BaseStatsCalculator } from "src/stats/calculators/base/BaseStatsCalculator.sol";
import { IStatsCalculatorRegistry } from "src/interfaces/stats/IStatsCalculatorRegistry.sol";
import { ILSTStats } from "src/interfaces/stats/ILSTStats.sol";
import { IRootPriceOracle } from "src/interfaces/oracles/IRootPriceOracle.sol";
import { IERC20Metadata } from "openzeppelin-contracts/token/ERC20/extensions/IERC20Metadata.sol";
import { IVault } from "src/interfaces/external/balancer/IVault.sol";
import { IBalancerPool } from "src/interfaces/external/balancer/IBalancerPool.sol";
import { IProtocolFeesCollector } from "src/interfaces/external/balancer/IProtocolFeesCollector.sol";
import { IERC20 } from "openzeppelin-contracts/token/ERC20/IERC20.sol";

/// @title Balancer Stable Pool Calculator Base
/// @notice Generates stats for Balancer Stable pools
abstract contract BalancerStablePoolCalculatorBase is IDexLSTStats, BaseStatsCalculator, Initializable {
    /// @notice The configured vault address
    IVault public immutable balancerVault;

    /// @notice The stats contracts for the underlying LSTs
    /// @return the LST stats contract for the specified index
    ILSTStats[] public lstStats;

    /// @notice The addresses of the pools reserve tokens
    /// @return the reserve token address for the specified index
    address[] public reserveTokens;

    /// @notice The number of underlying tokens in the pool
    uint256 public numTokens;

    /// @notice The Balancer pool address that the stats are for
    address public poolAddress;

    /// @notice The Balancer pool id that the stats are for
    bytes32 public poolId;

    /// @notice The most recent filtered feeApr. Typically retrieved via the current method
    uint256 public feeApr;

    /// @notice Flag indicating if the feeApr filter is initialized
    bool public feeAprFilterInitialized;

    /// @notice The last time a snapshot was taken
    uint256 public lastSnapshotTimestamp;

    /// @notice The pool's virtual price the last time a snapshot was taken
    uint256 public lastVirtualPrice;

    /// @notice The ethPerShare for the reserve tokens
    uint256[] public lastEthPerShare;

    bytes32 private _aprId;

    struct InitData {
        address poolAddress;
    }

    error InvalidPool(address poolAddress);
    error InvalidPoolId(address poolAddress);
    error DependentAprIdsMismatchTokens(uint256 numDependentAprIds, uint256 numCoins);

    constructor(ISystemRegistry _systemRegistry, address _balancerVault) BaseStatsCalculator(_systemRegistry) {
        Errors.verifyNotZero(_balancerVault, "_balancerVault");
        balancerVault = IVault(_balancerVault);
    }

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

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

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

        Errors.verifyNotZero(decodedInitData.poolAddress, "poolAddress");
        poolAddress = decodedInitData.poolAddress;

        poolId = IBalancerPool(poolAddress).getPoolId();
        if (poolId == bytes32(0)) revert InvalidPoolId(poolAddress);

        // reserveTokens addresses are checked against the dependentAprIds in a later step
        (IERC20[] memory _reserveTokens,) = getPoolTokens();

        numTokens = _reserveTokens.length;
        if (numTokens == 0) {
            revert InvalidPool(poolAddress);
        }

        // We should have the same number of calculators sent in as there are coins
        if (dependentAprIds.length != numTokens) {
            revert DependentAprIdsMismatchTokens(dependentAprIds.length, numTokens);
        }

        _aprId = Stats.generateBalancerPoolIdentifier(poolAddress);

        IStatsCalculatorRegistry registry = systemRegistry.statsCalculatorRegistry();
        lstStats = new ILSTStats[](numTokens);
        reserveTokens = new address[](numTokens);
        lastEthPerShare = new uint256[](numTokens);

        for (uint256 i = 0; i < numTokens; i++) {
            bytes32 dependentAprId = dependentAprIds[i];
            address coin = address(_reserveTokens[i]);
            Errors.verifyNotZero(coin, "coin");

            reserveTokens[i] = coin;

            // call now to revert at init if there is an issue b/c this call is made in other calculations
            // slither-disable-next-line unused-return
            IERC20Metadata(coin).decimals();

            if (dependentAprId != Stats.NOOP_APR_ID) {
                IStatsCalculator calculator = registry.getCalculator(dependentAprId);

                // Ensure that the calculator we configured is meant to handle the token
                // setup on the pool. Individual token calculators use the address of the token
                // itself as the address id
                if (calculator.getAddressId() != coin) {
                    revert Stats.CalculatorAssetMismatch(dependentAprId, address(calculator), coin);
                }

                ILSTStats stats = ILSTStats(address(calculator));
                lstStats[i] = stats;

                lastEthPerShare[i] = stats.calculateEthPerToken();
            }
        }

        lastSnapshotTimestamp = block.timestamp;
        lastVirtualPrice = getVirtualPrice();
        feeAprFilterInitialized = false;
    }

    /// @inheritdoc IStatsCalculator
    function shouldSnapshot() public view override returns (bool) {
        if (feeAprFilterInitialized) {
            // slither-disable-next-line timestamp
            return block.timestamp >= lastSnapshotTimestamp + Stats.DEX_FEE_APR_SNAPSHOT_INTERVAL;
        } else {
            // slither-disable-next-line timestamp
            return block.timestamp >= lastSnapshotTimestamp + Stats.DEX_FEE_APR_FILTER_INIT_INTERVAL;
        }
    }

    /// @inheritdoc IDexLSTStats
    function current() external returns (DexLSTStatsData memory) {
        IRootPriceOracle pricer = systemRegistry.rootPriceOracle();

        uint256[] memory reservesInEth = new uint256[](numTokens);
        ILSTStats.LSTStatsData[] memory lstStatsData = new ILSTStats.LSTStatsData[](numTokens);

        (, uint256[] memory balances) = getPoolTokens();

        for (uint256 i = 0; i < numTokens; i++) {
            reservesInEth[i] = calculateReserveInEthByIndex(pricer, balances, i);
            ILSTStats stats = lstStats[i];
            if (address(stats) != address(0)) {
                ILSTStats.LSTStatsData memory statsData = stats.current();

                statsData.baseApr = adjustForBalancerAdminFee(statsData.baseApr);
                lstStatsData[i] = statsData;
            }
        }

        // we want to return zero values
        // slither-disable-next-line uninitialized-local
        StakingIncentiveStats memory stakingIncentiveStats;

        return DexLSTStatsData({
            lastSnapshotTimestamp: lastSnapshotTimestamp,
            feeApr: feeApr,
            reservesInEth: reservesInEth,
            lstStatsData: lstStatsData,
            stakingIncentiveStats: stakingIncentiveStats
        });
    }

    /// @notice Capture stat data about this setup
    /// @dev This is protected by the STATS_SNAPSHOT_ROLE
    function _snapshot() internal override {
        IRootPriceOracle pricer = systemRegistry.rootPriceOracle();

        uint256 currentVirtualPrice = getVirtualPrice();
        (, uint256[] memory balances) = getPoolTokens();

        uint256[] memory currentEthPerShare = new uint256[](numTokens);
        uint256[] memory reservesInEth = new uint256[](numTokens);

        // subtracting base yield is an approximation b/c it uses the point-in-time reserve balances to estimate the
        // yield earned from the rebasing token. An attacker could shift the balance of the pool, causing us to believe
        // the fee apr is higher or lower. For a number of reasons, FeeApr has a low weight in the rebalancing logic.
        // LMP strategies understand that this signal can be noisy and correct accordingly A price check against an
        // oracle is an option to further mitigate the issue
        uint256 weightedBaseApr = 0;
        uint256 totalReservesInEth = 0;

        for (uint256 i = 0; i < numTokens; i++) {
            uint256 reserveValue = calculateReserveInEthByIndex(pricer, balances, i);
            reservesInEth[i] = reserveValue;
            totalReservesInEth += reserveValue;

            ILSTStats stats = lstStats[i];
            if (address(stats) != address(0)) {
                uint256 underlyingEthPerShare = stats.calculateEthPerToken();
                currentEthPerShare[i] = underlyingEthPerShare;
                weightedBaseApr += Stats.calculateAnnualizedChangeMinZero(
                    lastSnapshotTimestamp, lastEthPerShare[i], block.timestamp, underlyingEthPerShare
                ) * reserveValue;
            }
        }

        uint256 currentBaseApr = 0;
        if (totalReservesInEth > 0) {
            currentBaseApr = adjustForBalancerAdminFee(weightedBaseApr / totalReservesInEth);
        }

        uint256 currentFeeApr = Stats.calculateAnnualizedChangeMinZero(
            lastSnapshotTimestamp, lastVirtualPrice, block.timestamp, currentVirtualPrice
        );

        // slither-disable-next-line timestamp
        if (currentFeeApr > currentBaseApr) {
            currentFeeApr -= currentBaseApr;
        } else {
            currentFeeApr = 0;
        }

        uint256 newFeeApr;
        if (feeAprFilterInitialized) {
            // filter normally once the filter has been initialized
            newFeeApr = Stats.getFilteredValue(Stats.DEX_FEE_ALPHA, feeApr, currentFeeApr);
        } else {
            // first raw sample is used to initialize the filter
            newFeeApr = currentFeeApr;
            feeAprFilterInitialized = true;
        }

        // pricer handles reentrancy issues
        // slither-disable-next-line reentrancy-events
        emit DexSnapshotTaken(block.timestamp, feeApr, newFeeApr, currentFeeApr);

        lastSnapshotTimestamp = block.timestamp;
        lastVirtualPrice = currentVirtualPrice;
        lastEthPerShare = currentEthPerShare;
        feeApr = newFeeApr;
    }

    function calculateReserveInEthByIndex(
        IRootPriceOracle pricer,
        uint256[] memory balances,
        uint256 index
    ) internal returns (uint256) {
        address token = reserveTokens[index];

        // the price oracle is always 18 decimals, so divide by the decimals of the token
        // to ensure that we always report the value in ETH as 18 decimals
        uint256 divisor = 10 ** IERC20Metadata(token).decimals();

        // the pricer handles the reentrancy issues
        // slither-disable-next-line reentrancy-benign,reentrancy-no-eth
        return pricer.getPriceInEth(token) * balances[index] / divisor;
    }

    function adjustForBalancerAdminFee(uint256 value) internal view returns (uint256) {
        // balancer admin fee is 18 decimals
        // we want tot return a value that is the non-balancer amount
        uint256 adminFeeRate = 1e18 - balancerVault.getProtocolFeesCollector().getSwapFeePercentage();
        return value * adminFeeRate / 1e18;
    }

    function getVirtualPrice() internal view virtual returns (uint256 virtualPrice);

    /// @notice for composable pools the pool token is filtered out
    function getPoolTokens() internal view virtual returns (IERC20[] memory tokens, uint256[] memory balances);
}

// File: src/libs/BalancerUtilities.sol



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

pragma solidity 0.8.17;

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

import { IVault } from "src/interfaces/external/balancer/IVault.sol";
import { IBalancerPool } from "src/interfaces/external/balancer/IBalancerPool.sol";
import { IBalancerMetaStablePool } from "src/interfaces/external/balancer/IBalancerMetaStablePool.sol";

library BalancerUtilities {
    error BalancerVaultReentrancy();

    // 400 is Balancers Vault REENTRANCY error code
    bytes32 internal constant REENTRANCY_ERROR_HASH = keccak256(abi.encodeWithSignature("Error(string)", "BAL#400"));

    /**
     * @notice Verifies reentrancy to the Balancer Vault
     * @dev Reverts if gets BAL#400 error
     */
    function checkReentrancy(address balancerVault) external view {
        // solhint-disable max-line-length
        // https://github.com/balancer/balancer-v2-monorepo/blob/227683919a7031615c0bc7f144666cdf3883d212/pkg/pool-utils/contracts/lib/VaultReentrancyLib.sol
        (, bytes memory returnData) = balancerVault.staticcall{ gas: 10_000 }(
            abi.encodeWithSelector(IVault.manageUserBalance.selector, new IVault.UserBalanceOp[](0))
        );
        if (keccak256(returnData) == REENTRANCY_ERROR_HASH) {
            revert BalancerVaultReentrancy();
        }
    }

    /**
     * @notice Checks if a given address is Balancer Composable pool
     * @dev Using the presence of a getBptIndex() fn as an indicator of pool type
     */
    function isComposablePool(address pool) public view returns (bool) {
        // slither-disable-start low-level-calls
        // solhint-disable-next-line no-unused-vars
        (bool success, bytes memory data) = pool.staticcall(abi.encodeWithSignature("getBptIndex()"));
        if (success) {
            return data.length > 0;
        }
        // slither-disable-end low-level-calls
        return success;
    }

    /**
     * @dev This helper function is a fast and cheap way to convert between IERC20[] and IAsset[] types
     */
    function _convertERC20sToAddresses(IERC20[] memory tokens) internal pure returns (address[] memory assets) {
        //slither-disable-start assembly
        //solhint-disable-next-line no-inline-assembly
        assembly {
            assets := tokens
        }
        //slither-disable-end assembly
    }

    /**
     * @dev This helper function to retrieve Balancer pool tokens
     */
    function _getPoolTokens(
        IVault balancerVault,
        address balancerPool
    ) internal view returns (IERC20[] memory assets, uint256[] memory balances) {
        bytes32 poolId = IBalancerPool(balancerPool).getPoolId();

        (assets, balances,) = balancerVault.getPoolTokens(poolId);
    }

    /**
     * @notice Gets the virtual price of a Balancer metastable pool with an invariant adjustment
     * @dev removes accrued admin fees that haven't been taken yet by Balancer
     */
    function _getMetaStableVirtualPrice(
        IVault balancerVault,
        address balancerPool
    ) internal view returns (uint256 virtualPrice) {
        IBalancerMetaStablePool pool = IBalancerMetaStablePool(balancerPool);
        virtualPrice = pool.getRate(); // e18

        uint256 totalSupply = pool.totalSupply(); // e18
        uint256 unscaledInv = (virtualPrice * totalSupply) / 1e18; // e18
        uint256 lastInvariant = pool.getLastInvariant(); // e18
        if (unscaledInv > lastInvariant) {
            uint256 delta = unscaledInv - lastInvariant; // e18 - e18 -> e18
            uint256 swapFee = balancerVault.getProtocolFeesCollector().getSwapFeePercentage(); //e18
            uint256 protocolPortion = ((delta * swapFee) / 1e18); // e18
            uint256 scaledInv = unscaledInv - protocolPortion; // e18 - e18 -> e18
            virtualPrice = scaledInv * 1e18 / totalSupply; // e36 / e18 -> e18
        }
    }
}

// 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/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/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/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/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/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/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/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/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: 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/external/balancer/IVault.sol



// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity 0.8.17;

import { IERC20 } from "openzeppelin-contracts/token/ERC20/IERC20.sol";
import { IProtocolFeesCollector } from "src/interfaces/external/balancer/IProtocolFeesCollector.sol";
import { IAsset } from "src/interfaces/external/balancer/IAsset.sol";

/**
 * @dev Full external interface for the Vault core contract - no external or public methods exist in the contract that
 * don't override one of these declarations.
 */
interface IVault {
    // Pools
    //
    // There are three specialization settings for Pools, which allow for cheaper swaps at the cost of reduced
    // functionality:
    //
    //  - General: no specialization, suited for all Pools. IGeneralPool is used for swap request callbacks, passing the
    // balance of all tokens in the Pool. These Pools have the largest swap costs (because of the extra storage reads),
    // which increase with the number of registered tokens.
    //
    //  - Minimal Swap Info: IMinimalSwapInfoPool is used instead of IGeneralPool, which saves gas by only passing the
    // balance of the two tokens involved in the swap. This is suitable for some pricing algorithms, like the weighted
    // constant product one popularized by Balancer V1. Swap costs are smaller compared to general Pools, and are
    // independent of the number of registered tokens.
    //
    //  - Two Token: only allows two tokens to be registered. This achieves the lowest possible swap gas cost. Like
    // minimal swap info Pools, these are called via IMinimalSwapInfoPool.

    enum PoolSpecialization {
        GENERAL,
        MINIMAL_SWAP_INFO,
        TWO_TOKEN
    }

    enum JoinKind {
        INIT,
        EXACT_TOKENS_IN_FOR_BPT_OUT,
        TOKEN_IN_FOR_EXACT_BPT_OUT,
        ALL_TOKENS_IN_FOR_EXACT_BPT_OUT
    }

    /**
     * @dev Data for `manageUserBalance` operations, which include the possibility for ETH to be sent and received
     *  without manual WETH wrapping or unwrapping.
     */
    struct UserBalanceOp {
        UserBalanceOpKind kind;
        address asset;
        uint256 amount;
        address sender;
        address payable recipient;
    }

    // There are four possible operations in `manageUserBalance`:
    //
    // - DEPOSIT_INTERNAL
    // Increases the Internal Balance of the `recipient` account by transferring tokens from the corresponding
    // `sender`. The sender must have allowed the Vault to use their tokens via `IERC20.approve()`.
    //
    // ETH can be used by passing the ETH sentinel value as the asset and forwarding ETH in the call: it will be wrapped
    // and deposited as WETH. Any ETH amount remaining will be sent back to the caller (not the sender, which is
    // relevant for relayers).
    //
    // Emits an `InternalBalanceChanged` event.
    //
    //
    // - WITHDRAW_INTERNAL
    // Decreases the Internal Balance of the `sender` account by transferring tokens to the `recipient`.
    //
    // ETH can be used by passing the ETH sentinel value as the asset. This will deduct WETH instead, unwrap it and send
    // it to the recipient as ETH.
    //
    // Emits an `InternalBalanceChanged` event.
    //
    //
    // - TRANSFER_INTERNAL
    // Transfers tokens from the Internal Balance of the `sender` account to the Internal Balance of `recipient`.
    //
    // Reverts if the ETH sentinel value is passed.
    //
    // Emits an `InternalBalanceChanged` event.
    //
    //
    // - TRANSFER_EXTERNAL
    // Transfers tokens from `sender` to `recipient`, using the Vault's ERC20 allowance. This is typically used by
    // relayers, as it lets them reuse a user's Vault allowance.
    //
    // Reverts if the ETH sentinel value is passed.
    //
    // Emits an `ExternalBalanceTransfer` event.

    enum UserBalanceOpKind {
        DEPOSIT_INTERNAL,
        WITHDRAW_INTERNAL,
        TRANSFER_INTERNAL,
        TRANSFER_EXTERNAL
    }

    /**
     * @dev Performs a set of user balance operations, which involve Internal Balance (deposit, withdraw or transfer)
     * and plain ERC20 transfers using the Vault's allowance. This last feature is particularly useful for relayers, as
     * it lets integrators reuse a user's Vault allowance.
     *
     * For each operation, if the caller is not `sender`, it must be an authorized relayer for them.
     */
    function manageUserBalance(UserBalanceOp[] memory ops) external payable;

    /**
     * @dev Returns a Pool's contract address and specialization setting.
     */
    function getPool(bytes32 poolId) external view returns (address, PoolSpecialization);

    /**
     * @dev Returns a Pool's registered tokens, the total balance for each, and the latest block when *any* of
     * the tokens' `balances` changed.
     *
     * The order of the `tokens` array is the same order that will be used in `joinPool`, `exitPool`, as well as in all
     * Pool hooks (where applicable). Calls to `registerTokens` and `deregisterTokens` may change this order.
     *
     * If a Pool only registers tokens once, and these are sorted in ascending order, they will be stored in the same
     * order as passed to `registerTokens`.
     *
     * Total balances include both tokens held by the Vault and those withdrawn by the Pool's Asset Managers. These are
     * the amounts used by joins, exits and swaps. For a detailed breakdown of token balances, use `getPoolTokenInfo`
     * instead.
     */
    function getPoolTokens(bytes32 poolId)
        external
        view
        returns (IERC20[] memory tokens, uint256[] memory balances, uint256 lastChangeBlock);

    /**
     * @dev Returns detailed information for a Pool's registered token.
     *
     * `cash` is the number of tokens the Vault currently holds for the Pool. `managed` is the number of tokens
     * withdrawn and held outside the Vault by the Pool's token Asset Manager. The Pool's total balance for `token`
     * equals the sum of `cash` and `managed`.
     *
     * Internally, `cash` and `managed` are stored using 112 bits. No action can ever cause a Pool's token `cash`,
     * `managed` or `total` balance to be greater than 2^112 - 1.
     *
     * `lastChangeBlock` is the number of the block in which `token`'s total balance was last modified (via either a
     * join, exit, swap, or Asset Manager update). This value is useful to avoid so-called 'sandwich attacks', for
     * example when developing price oracles. A change of zero (e.g. caused by a swap with amount zero) is considered a
     * change for this purpose, and will update `lastChangeBlock`.
     *
     * `assetManager` is the Pool's token Asset Manager.
     */
    function getPoolTokenInfo(
        bytes32 poolId,
        IERC20 token
    ) external view returns (uint256 cash, uint256 managed, uint256 lastChangeBlock, address assetManager);

    /**
     * @dev Called by users to join a Pool, which transfers tokens from `sender` into the Pool's balance. This will
     * trigger custom Pool behavior, which will typically grant something in return to `recipient` - often tokenized
     * Pool shares.
     *
     * If the caller is not `sender`, it must be an authorized relayer for them.
     *
     * The `assets` and `maxAmountsIn` arrays must have the same length, and each entry indicates the maximum amount
     * to send for each asset. The amounts to send are decided by the Pool and not the Vault: it just enforces
     * these maximums.
     *
     * If joining a Pool that holds WETH, it is possible to send ETH directly: the Vault will do the wrapping. To enable
     * this mechanism, the IAsset sentinel value (the zero address) must be passed in the `assets` array instead of the
     * WETH address. Note that it is not possible to combine ETH and WETH in the same join. Any excess ETH will be sent
     * back to the caller (not the sender, which is important for relayers).
     *
     * `assets` must have the same length and order as the array returned by `getPoolTokens`. This prevents issues when
     * interacting with Pools that register and deregister tokens frequently. If sending ETH however, the array must be
     * sorted *before* replacing the WETH address with the ETH sentinel value (the zero address), which means the final
     * `assets` array might not be sorted. Pools with no registered tokens cannot be joined.
     *
     * If `fromInternalBalance` is true, the caller's Internal Balance will be preferred: ERC20 transfers will only
     * be made for the difference between the requested amount and Internal Balance (if any). Note that ETH cannot be
     * withdrawn from Internal Balance: attempting to do so will trigger a revert.
     *
     * This causes the Vault to call the `IBasePool.onJoinPool` hook on the Pool's contract, where Pools implement
     * their own custom logic. This typically requires additional information from the user (such as the expected number
     * of Pool shares). This can be encoded in the `userData` argument, which is ignored by the Vault and passed
     * directly to the Pool's contract, as is `recipient`.
     *
     * Emits a `PoolBalanceChanged` event.
     */
    function joinPool(
        bytes32 poolId,
        address sender,
        address recipient,
        JoinPoolRequest memory request
    ) external payable;

    struct JoinPoolRequest {
        address[] assets;
        uint256[] maxAmountsIn;
        bytes userData;
        bool fromInternalBalance;
    }

    /**
     * @dev Called by users to exit a Pool, which transfers tokens from the Pool's balance to `recipient`. This will
     * trigger custom Pool behavior, which will typically ask for something in return from `sender` - often tokenized
     * Pool shares. The amount of tokens that can be withdrawn is limited by the Pool's `cash` balance (see
     * `getPoolTokenInfo`).
     *
     * If the caller is not `sender`, it must be an authorized relayer for them.
     *
     * The `tokens` and `minAmountsOut` arrays must have the same length, and each entry in these indicates the minimum
     * token amount to receive for each token contract. The amounts to send are decided by the Pool and not the Vault:
     * it just enforces these minimums.
     *
     * If exiting a Pool that holds WETH, it is possible to receive ETH directly: the Vault will do the unwrapping. To
     * enable this mechanism, the IAsset sentinel value (the zero address) must be passed in the `assets` array instead
     * of the WETH address. Note that it is not possible to combine ETH and WETH in the same exit.
     *
     * `assets` must have the same length and order as the array returned by `getPoolTokens`. This prevents issues when
     * interacting with Pools that register and deregister tokens frequently. If receiving ETH however, the array must
     * be sorted *before* replacing the WETH address with the ETH sentinel value (the zero address), which means the
     * final `assets` array might not be sorted. Pools with no registered tokens cannot be exited.
     *
     * If `toInternalBalance` is true, the tokens will be deposited to `recipient`'s Internal Balance. Otherwise,
     * an ERC20 transfer will be performed. Note that ETH cannot be deposited to Internal Balance: attempting to
     * do so will trigger a revert.
     *
     * `minAmountsOut` is the minimum amount of tokens the user expects to get out of the Pool, for each token in the
     * `tokens` array. This array must match the Pool's registered tokens.
     *
     * This causes the Vault to call the `IBasePool.onExitPool` hook on the Pool's contract, where Pools implement
     * their own custom logic. This typically requires additional information from the user (such as the expected number
     * of Pool shares to return). This can be encoded in the `userData` argument, which is ignored by the Vault and
     * passed directly to the Pool's contract.
     *
     * Emits a `PoolBalanceChanged` event.
     */
    function exitPool(
        bytes32 poolId,
        address sender,
        address payable recipient,
        ExitPoolRequest memory request
    ) external;

    struct ExitPoolRequest {
        address[] assets;
        uint256[] minAmountsOut;
        bytes userData;
        bool toInternalBalance;
    }

    /**
     * @dev Data for each individual swap executed by `batchSwap`. The asset in and out fields are indexes into the
     * `assets` array passed to that function, and ETH assets are converted to WETH.
     *
     * If `amount` is zero, the multihop mechanism is used to determine the actual amount based on the amount in/out
     * from the previous swap, depending on the swap kind.
     *
     * The `userData` field is ignored by the Vault, but forwarded to the Pool in the `onSwap` hook, and may be
     * used to extend swap behavior.
     */
    struct BatchSwapStep {
        bytes32 poolId;
        uint256 assetInIndex;
        uint256 assetOutIndex;
        uint256 amount;
        bytes userData;
    }

    /**
     * @dev Emitted for each individual swap performed by `swap` or `batchSwap`.
     */
    event Swap(
        bytes32 indexed poolId, IERC20 indexed tokenIn, IERC20 indexed tokenOut, uint256 amountIn, uint256 amountOut
    );

    // Swaps
    //
    // Users can swap tokens with Pools by calling the `swap` and `batchSwap` functions. To do this,
    // they need not trust Pool contracts in any way: all security checks are made by the Vault. They must however be
    // aware of the Pools' pricing algorithms in order to estimate the prices Pools will quote.
    //
    // The `swap` function executes a single swap, while `batchSwap` can perform multiple swaps in sequence.
    // In each individual swap, tokens of one kind are sent from the sender to the Pool (this is the 'token in'),
    // and tokens of another kind are sent from the Pool to the recipient in exchange (this is the 'token out').
    // More complex swaps, such as one token in to multiple tokens out can be achieved by batching together
    // individual swaps.
    //
    // There are two swap kinds:
    //  - 'given in' swaps, where the amount of tokens in (sent to the Pool) is known, and the Pool determines (via the
    // `onSwap` hook) the amount of tokens out (to send to the recipient).
    //  - 'given out' swaps, where the amount of tokens out (received from the Pool) is known, and the Pool determines
    // (via the `onSwap` hook) the amount of tokens in (to receive from the sender).
    //
    // Additionally, it is possible to chain swaps using a placeholder input amount, which the Vault replaces with
    // the calculated output of the previous swap. If the previous swap was 'given in', this will be the calculated
    // tokenOut amount. If the previous swap was 'given out', it will use the calculated tokenIn amount. These extended
    // swaps are known as 'multihop' swaps, since they 'hop' through a number of intermediate tokens before arriving at
    // the final intended token.
    //
    // In all cases, tokens are only transferred in and out of the Vault (or withdrawn from and deposited into Internal
    // Balance) after all individual swaps have been completed, and the net token balance change computed. This makes
    // certain swap patterns, such as multihops, or swaps that interact with the same token pair in multiple Pools, cost
    // much less gas than they would otherwise.
    //
    // It also means that under certain conditions it is possible to perform arbitrage by swapping with multiple
    // Pools in a way that results in net token movement out of the Vault (profit), with no tokens being sent in (only
    // updating the Pool's internal accounting).
    //
    // To protect users from front-running or the market changing rapidly, they supply a list of 'limits' for each token
    // involved in the swap, where either the maximum number of tokens to send (by passing a positive value) or the
    // minimum amount of tokens to receive (by passing a negative value) is specified.
    //
    // Additionally, a 'deadline' timestamp can also be provided, forcing the swap to fail if it occurs after
    // this point in time (e.g. if the transaction failed to be included in a block promptly).
    //
    // If interacting with Pools that hold WETH, it is possible to both send and receive ETH directly: the Vault will do
    // the wrapping and unwrapping. To enable this mechanism, the IAsset sentinel value (the zero address) must be
    // passed in the `assets` array instead of the WETH address. Note that it is possible to combine ETH and WETH in the
    // same swap. Any excess ETH will be sent back to the caller (not the sender, which is relevant for relayers).
    //
    // Finally, Internal Balance can be used when either sending or receiving tokens.

    enum SwapKind {
        GIVEN_IN,
        GIVEN_OUT
    }

    /**
     * @dev Performs a swap with a single Pool.
     *
     * If the swap is 'given in' (the number of tokens to send to the Pool is known), it returns the amount of tokens
     * taken from the Pool, which must be greater than or equal to `limit`.
     *
     * If the swap is 'given out' (the number of tokens to take from the Pool is known), it returns the amount of tokens
     * sent to the Pool, which must be less than or equal to `limit`.
     *
     * Internal Balance usage and the recipient are determined by the `funds` struct.
     *
     * Emits a `Swap` event.
     */
    function swap(
        SingleSwap memory singleSwap,
        FundManagement memory funds,
        uint256 limit,
        uint256 deadline
    ) external payable returns (uint256);

    /**
     * @dev Data for a single swap executed by `swap`. `amount` is either `amountIn` or `amountOut` depending on
     * the `kind` value.
     *
     * `assetIn` and `assetOut` are either token addresses, or the IAsset sentinel value for ETH (the zero address).
     * Note that Pools never interact with ETH directly: it will be wrapped to or unwrapped from WETH by the Vault.
     *
     * The `userData` field is ignored by the Vault, but forwarded to the Pool in the `onSwap` hook, and may be
     * used to extend swap behavior.
     */
    struct SingleSwap {
        bytes32 poolId;
        SwapKind kind;
        address assetIn;
        address assetOut;
        uint256 amount;
        bytes userData;
    }

    /**
     * @dev All tokens in a swap are either sent from the `sender` account to the Vault, or from the Vault to the
     * `recipient` account.
     *
     * If the caller is not `sender`, it must be an authorized relayer for them.
     *
     * If `fromInternalBalance` is true, the `sender`'s Internal Balance will be preferred, performing an ERC20
     * transfer for the difference between the requested amount and the User's Internal Balance (if any). The `sender`
     * must have allowed the Vault to use their tokens via `IERC20.approve()`. This matches the behavior of
     * `joinPool`.
     *
     * If `toInternalBalance` is true, tokens will be deposited to `recipient`'s internal balance instead of
     * transferred. This matches the behavior of `exitPool`.
     *
     * Note that ETH cannot be deposited to or withdrawn from Internal Balance: attempting to do so will trigger a
     * revert.
     */
    struct FundManagement {
        address sender;
        bool fromInternalBalance;
        address payable recipient;
        bool toInternalBalance;
    }

    function getProtocolFeesCollector() external view returns (IProtocolFeesCollector);

    /**
     * @dev Simulates a call to `batchSwap`, returning an array of Vault asset deltas. Calls to `swap` cannot be
     * simulated directly, but an equivalent `batchSwap` call can and will yield the exact same result.
     *
     * Each element in the array corresponds to the asset at the same index, and indicates the number of tokens (or ETH)
     * the Vault would take from the sender (if positive) or send to the recipient (if negative). The arguments it
     * receives are the same that an equivalent `batchSwap` call would receive.
     *
     * Unlike `batchSwap`, this function performs no checks on the sender or recipient field in the `funds` struct.
     * This makes it suitable to be called by off-chain applications via eth_call without needing to hold tokens,
     * approve them for the Vault, or even know a user's address.
     *
     * Note that this function is not 'view' (due to implementation details): the client code must explicitly execute
     * eth_call instead of eth_sendTransaction.
     */
    function queryBatchSwap(
        SwapKind kind,
        BatchSwapStep[] memory swaps,
        IAsset[] memory assets,
        FundManagement memory funds
    ) external returns (int256[] memory assetDeltas);
}

// File: src/interfaces/external/balancer/IBalancerPool.sol



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

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

interface IBalancerPool is IERC20Metadata {
    /// @notice returns total supply of Balancer pool
    function totalSupply() external view returns (uint256);

    /**
     * @notice gets Balancer poolId
     * @return bytes32 poolId
     */
    function getPoolId() external view returns (bytes32);
}

// File: src/interfaces/external/balancer/IProtocolFeesCollector.sol



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

interface IProtocolFeesCollector {
    function getSwapFeePercentage() external view returns (uint256);
}

// File: src/interfaces/external/balancer/IBalancerMetaStablePool.sol



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

import { IRateProvider } from "src/interfaces/external/balancer/IRateProvider.sol";

interface IBalancerMetaStablePool {
    function getPoolId() external view returns (bytes32);

    function getRate() external view returns (uint256);

    function getLastInvariant() external view returns (uint256);

    function getLatest(uint8 x) external view returns (uint256);

    function totalSupply() external view returns (uint256);

    function getSwapFeePercentage() external view returns (uint256);

    function getRateProviders() external view returns (IRateProvider[] memory);
}

// 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";
import { LMPDebt } from "src/vault/libs/LMPDebt.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);

    /// @notice get a destinations last reported debt value
    /// @param destVault the address of the target destination
    /// @return destinations last reported debt value
    function getDestinationInfo(address destVault) external view returns (LMPDebt.DestinationInfo memory);

    /// @notice check if a destination is registered with the vault
    function isDestinationRegistered(address destination) external view returns (bool);

    /// @notice get if a destinationVault is queued for removal by the LMPVault
    function isDestinationQueuedForRemoval(address destination) external view returns (bool);

    /// @notice add (or move to if it already exists) a destination to the head of the withdrawal queue
    function addToWithdrawalQueueHead(address destinationVault) external;

    /// @notice add (or move to if it already exists) a destination to the tail of the withdrawal queue
    function addToWithdrawalQueueTail(address destinationVault) external;
}

// 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/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: 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/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/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: src/interfaces/external/balancer/IAsset.sol



// SPDX-License-Identifier: GPL-3.0-or-later

pragma solidity 0.8.17;

/**
 * @dev This is an empty interface used to represent either ERC20-conforming token contracts or ETH (using the zero
 * address sentinel value). We're just relying on the fact that `interface` can be used to declare new address-like
 * types.
 *
 * This concept is unrelated to a Pool's Asset Managers.
 */
interface IAsset {
// solhint-disable-previous-line no-empty-blocks
}

// File: src/interfaces/external/balancer/IRateProvider.sol



// SPDX-License-Identifier: GPL-3.0-or-later
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.
pragma solidity 0.8.17;

interface IRateProvider {
    function getRate() external view returns (uint256);
}

// 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 Recovers any extra underlying both in DV and staked externally not tracked as debt.
    /// @dev Should be limited to TOKEN_SAVER_ROLE.
    /// @param destination The address to send excess underlyer to.
    function recoverUnderlying(address destination) 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;
    }

    /// @param destination The address / lp token of the destination vault
    /// @param baseApr Base Apr is the yield generated by staking rewards
    /// @param feeApr Yield for pool trading fees
    /// @param incentiveApr Incentives for LP
    /// @param safeTotalSupply Safe supply for LP tokens
    /// @param priceReturn Return from price movement to & away from peg
    /// @param maxDiscount Max discount to peg
    /// @param maxPremium Max premium to peg
    /// @param ownedShares Shares owned for this destination
    /// @param compositeReturn Total return combined from the individual yield components
    /// @param pricePerShare Price per share
    /// @param slashingCost The loss due to slashing of the backing
    struct SummaryStats {
        address destination;
        uint256 baseApr;
        uint256 feeApr;
        uint256 incentiveApr;
        uint256 safeTotalSupply;
        int256 priceReturn;
        int256 maxDiscount;
        int256 maxPremium;
        uint256 ownedShares;
        int256 compositeReturn;
        uint256 pricePerShare;
        uint256 slashingCost;
    }

    /// @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;
}

// File: src/vault/libs/LMPDebt.sol



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

pragma solidity 0.8.17;

import { Errors } from "src/utils/Errors.sol";
import { LibAdapter } from "src/libs/LibAdapter.sol";
import { IDestinationVault } from "src/interfaces/vault/IDestinationVault.sol";
import { Math } from "openzeppelin-contracts/utils/math/Math.sol";
import { EnumerableSet } from "openzeppelin-contracts/utils/structs/EnumerableSet.sol";
import { IStrategy } from "src/interfaces/strategy/IStrategy.sol";
import { SafeERC20 } from "openzeppelin-contracts/token/ERC20/utils/SafeERC20.sol";
import { IERC20Metadata as IERC20 } from "openzeppelin-contracts/token/ERC20/extensions/IERC20Metadata.sol";
import { IDestinationVaultRegistry } from "src/interfaces/vault/IDestinationVaultRegistry.sol";
import { ISystemRegistry } from "src/interfaces/ISystemRegistry.sol";
import { IERC3156FlashBorrower } from "openzeppelin-contracts/interfaces/IERC3156FlashBorrower.sol";
import { ILMPStrategy } from "src/interfaces/strategy/ILMPStrategy.sol";

library LMPDebt {
    using Math for uint256;
    using SafeERC20 for IERC20;

    error VaultShutdown();
    error WithdrawShareCalcInvalid(uint256 currentShares, uint256 cachedShares);
    error RebalanceDestinationsMatch(address destinationVault);
    error RebalanceFailed(string message);

    struct DestinationInfo {
        /// @notice Current underlying and reward value at the destination vault
        /// @dev Used for calculating totalDebt of the LMPVault
        uint256 currentDebt;
        /// @notice Last block timestamp this info was updated
        uint256 lastReport;
        /// @notice How many shares of the destination vault we owned at last report
        uint256 ownedShares;
        /// @notice Amount of baseAsset transferred out in service of deployments
        /// @dev Used for calculating 'in profit' or not during user withdrawals
        uint256 debtBasis;
    }

    struct RebalanceOutParams {
        /// Address that will received the withdrawn underlyer
        address receiver;
        /// The "out" destination vault
        address destinationOut;
        /// The amount of tokenOut that will be withdrawn
        uint256 amountOut;
        /// The underlyer for destinationOut
        address tokenOut;
        IERC20 _baseAsset;
        bool _shutdown;
    }

    /// @dev In memory struct only for managing vars in rebalances
    struct IdleDebtChange {
        uint256 debtDecrease;
        uint256 debtIncrease;
        uint256 idleDecrease;
        uint256 idleIncrease;
    }

    struct FlashRebalanceParams {
        uint256 totalIdle;
        uint256 totalDebt;
        IERC20 baseAsset;
        bool shutdown;
    }

    struct FlashResultInfo {
        uint256 tokenInBalanceBefore;
        uint256 tokenInBalanceAfter;
        bytes32 flashResult;
    }

    function flashRebalance(
        DestinationInfo storage destInfoOut,
        DestinationInfo storage destInfoIn,
        IERC3156FlashBorrower receiver,
        IStrategy.RebalanceParams memory params,
        IStrategy.SummaryStats memory destSummaryOut,
        ILMPStrategy lmpStrategy,
        FlashRebalanceParams memory flashParams,
        bytes calldata data
    ) external returns (uint256 idle, uint256 debt) {
        LMPDebt.IdleDebtChange memory idleDebtChange;

        // Handle decrease (shares going "Out", cashing in shares and sending underlying back to swapper)
        // If the tokenOut is _asset we assume they are taking idle
        // which is already in the contract
        idleDebtChange = _handleRebalanceOut(
            LMPDebt.RebalanceOutParams({
                receiver: address(receiver),
                destinationOut: params.destinationOut,
                amountOut: params.amountOut,
                tokenOut: params.tokenOut,
                _baseAsset: flashParams.baseAsset,
                _shutdown: flashParams.shutdown
            }),
            destInfoOut
        );

        // Handle increase (shares coming "In", getting underlying from the swapper and trading for new shares)
        if (params.amountIn > 0) {
            FlashResultInfo memory flashResultInfo;
            // get "before" counts
            flashResultInfo.tokenInBalanceBefore = IERC20(params.tokenIn).balanceOf(address(this));

            // Give control back to the solver so they can make use of the "out" assets
            // and get our "in" asset
            flashResultInfo.flashResult = receiver.onFlashLoan(msg.sender, params.tokenIn, params.amountIn, 0, data);

            // We assume the solver will send us the assets
            flashResultInfo.tokenInBalanceAfter = IERC20(params.tokenIn).balanceOf(address(this));

            // Make sure the call was successful and verify we have at least the assets we think
            // we were getting
            if (
                flashResultInfo.flashResult != keccak256("ERC3156FlashBorrower.onFlashLoan")
                    || flashResultInfo.tokenInBalanceAfter < flashResultInfo.tokenInBalanceBefore + params.amountIn
            ) {
                revert Errors.FlashLoanFailed(params.tokenIn, params.amountIn);
            }

            {
                // make sure we have a valid path
                (bool success, string memory message) = lmpStrategy.verifyRebalance(params, destSummaryOut);
                if (!success) {
                    revert RebalanceFailed(message);
                }
            }

            if (params.tokenIn != address(flashParams.baseAsset)) {
                (uint256 debtDecreaseIn, uint256 debtIncreaseIn) = _handleRebalanceIn(
                    destInfoIn,
                    IDestinationVault(params.destinationIn),
                    params.tokenIn,
                    flashResultInfo.tokenInBalanceAfter
                );
                idleDebtChange.debtDecrease += debtDecreaseIn;
                idleDebtChange.debtIncrease += debtIncreaseIn;
            } else {
                idleDebtChange.idleIncrease +=
                    flashResultInfo.tokenInBalanceAfter - flashResultInfo.tokenInBalanceBefore;
            }
        }

        {
            idle = flashParams.totalIdle;
            debt = flashParams.totalDebt;

            if (idleDebtChange.idleDecrease > 0 || idleDebtChange.idleIncrease > 0) {
                idle = idle + idleDebtChange.idleIncrease - idleDebtChange.idleDecrease;
            }

            if (idleDebtChange.debtDecrease > 0 || idleDebtChange.debtIncrease > 0) {
                debt = debt + idleDebtChange.debtIncrease - idleDebtChange.debtDecrease;
            }
        }
    }

    function _calcUserWithdrawSharesToBurn(
        DestinationInfo storage destInfo,
        IDestinationVault destVault,
        uint256 userShares,
        uint256 maxAssetsToPull,
        uint256 totalVaultShares
    ) external returns (uint256 sharesToBurn, uint256 totalDebtBurn) {
        // Figure out how many shares we can burn from the destination as well
        // as what our totalDebt deduction should be (totalDebt being a cached value).
        // If the destination vault is currently sitting at a profit, then the user can burn
        // all the shares this vault owns. If its at a loss, they can only burn an amount
        // proportional to their ownership of this vault. This is so a user doesn't lock in
        // a loss for the entire vault during their withdrawal

        uint256 currentDvShares = destVault.balanceOf(address(this));

        // slither-disable-next-line incorrect-equality
        if (currentDvShares == 0) {
            return (0, 0);
        }

        // Calculate the current value of our shares
        uint256 currentDvDebtValue = destVault.debtValue(currentDvShares);

        // Get the basis for the current deployment
        uint256 cachedDebtBasis = destInfo.debtBasis;

        // The amount of shares we had at the last debt reporting
        uint256 cachedDvShares = destInfo.ownedShares;

        // The value of our debt + earned rewards at last debt reporting
        uint256 cachedCurrentDebt = destInfo.currentDebt;

        // Our current share balance should only ever be lte the last snapshot
        // Any update to the deployment should update the snapshot and withdrawals
        // can only lower it
        if (currentDvShares > cachedDvShares) {
            revert WithdrawShareCalcInvalid(currentDvShares, cachedDvShares);
        }

        // Recalculated what the debtBasis is with the current number of shares
        uint256 updatedDebtBasis = cachedDebtBasis.mulDiv(currentDvShares, cachedDvShares, Math.Rounding.Up);

        // Neither of these numbers include rewards from the DV
        if (currentDvDebtValue < updatedDebtBasis) {
            // We are currently sitting at a loss. Limit the value we can pull from
            // the destination vault
            currentDvDebtValue = currentDvDebtValue.mulDiv(userShares, totalVaultShares, Math.Rounding.Down);
            currentDvShares = currentDvShares.mulDiv(userShares, totalVaultShares, Math.Rounding.Down);
        }

        // Shouldn't pull more than we want
        // Or, we're not in profit so we limit the pull
        if (currentDvDebtValue < maxAssetsToPull) {
            maxAssetsToPull = currentDvDebtValue;
        }

        // Calculate the portion of shares to burn based on the assets we need to pull
        // and the current total debt value. These are destination vault shares.
        sharesToBurn = currentDvShares.mulDiv(maxAssetsToPull, currentDvDebtValue, Math.Rounding.Up);

        // This is what will be deducted from totalDebt with the withdrawal. The totalDebt number
        // is calculated based on the cached values so we need to be sure to reduce it
        // proportional to the original cached debt value
        totalDebtBurn = cachedCurrentDebt.mulDiv(sharesToBurn, cachedDvShares, Math.Rounding.Up);
    }

    /// @notice Perform deposit and debt info update for the "in" destination during a rebalance
    /// @dev This "in" function performs less validations than its "out" version
    /// @param dvIn The "in" destination vault
    /// @param tokenIn The underlyer for dvIn
    /// @param depositAmount The amount of tokenIn that will be deposited
    /// @return debtDecrease The previous amount of debt dvIn accounted for in totalDebt
    /// @return debtIncrease The current amount of debt dvIn should account for in totalDebt
    function handleRebalanceIn(
        DestinationInfo storage destInfo,
        IDestinationVault dvIn,
        address tokenIn,
        uint256 depositAmount
    ) external returns (uint256 debtDecrease, uint256 debtIncrease) {
        (debtDecrease, debtIncrease) = _handleRebalanceIn(destInfo, dvIn, tokenIn, depositAmount);
    }

    /// @notice Perform deposit and debt info update for the "in" destination during a rebalance
    /// @dev This "in" function performs less validations than its "out" version
    /// @param dvIn The "in" destination vault
    /// @param tokenIn The underlyer for dvIn
    /// @param depositAmount The amount of tokenIn that will be deposited
    /// @return debtDecrease The previous amount of debt dvIn accounted for in totalDebt
    /// @return debtIncrease The current amount of debt dvIn should account for in totalDebt
    function _handleRebalanceIn(
        DestinationInfo storage destInfo,
        IDestinationVault dvIn,
        address tokenIn,
        uint256 depositAmount
    ) private returns (uint256 debtDecrease, uint256 debtIncrease) {
        LibAdapter._approve(IERC20(tokenIn), address(dvIn), depositAmount);

        // Snapshot our current shares so we know how much to back out
        uint256 originalShareBal = dvIn.balanceOf(address(this));

        // deposit to dv
        uint256 newShares = dvIn.depositUnderlying(depositAmount);

        // Update the debt info snapshot
        (debtDecrease, debtIncrease) =
            _recalculateDestInfo(destInfo, dvIn, originalShareBal, originalShareBal + newShares, true);
    }

    /**
     * @notice Perform withdraw and debt info update for the "out" destination during a rebalance
     * @dev This "out" function performs more validations and handles idle as opposed to "in" which does not
     *  debtDecrease The previous amount of debt destinationOut accounted for in totalDebt
     *  debtIncrease The current amount of debt destinationOut should account for in totalDebt
     *  idleDecrease Amount of baseAsset that was sent from the vault. > 0 only when tokenOut == baseAsset
     *  idleIncrease Amount of baseAsset that was claimed from Destination Vault
     * @param params Rebalance out params
     * @param destOutInfo The "out" destination vault info
     * @return assetChange debt and idle change data
     */
    function handleRebalanceOut(
        RebalanceOutParams memory params,
        DestinationInfo storage destOutInfo
    ) external returns (IdleDebtChange memory assetChange) {
        (assetChange) = _handleRebalanceOut(params, destOutInfo);
    }

    /**
     * @notice Perform withdraw and debt info update for the "out" destination during a rebalance
     * @dev This "out" function performs more validations and handles idle as opposed to "in" which does not
     *  debtDecrease The previous amount of debt destinationOut accounted for in totalDebt
     *  debtIncrease The current amount of debt destinationOut should account for in totalDebt
     *  idleDecrease Amount of baseAsset that was sent from the vault. > 0 only when tokenOut == baseAsset
     *  idleIncrease Amount of baseAsset that was claimed from Destination Vault
     * @param params Rebalance out params
     * @param destOutInfo The "out" destination vault info
     * @return assetChange debt and idle change data
     */
    function _handleRebalanceOut(
        RebalanceOutParams memory params,
        DestinationInfo storage destOutInfo
    ) private returns (IdleDebtChange memory assetChange) {
        // Handle decrease (shares going "Out", cashing in shares and sending underlying back to swapper)
        // If the tokenOut is _asset we assume they are taking idle
        // which is already in the contract
        if (params.amountOut > 0) {
            if (params.tokenOut != address(params._baseAsset)) {
                IDestinationVault dvOut = IDestinationVault(params.destinationOut);

                // Snapshot our current shares so we know how much to back out
                uint256 originalShareBal = dvOut.balanceOf(address(this));

                // Burning our shares will claim any pending baseAsset
                // rewards and send them to us. Make sure we capture them
                // so they can end up in idle
                uint256 beforeBaseAssetBal = params._baseAsset.balanceOf(address(this));

                // withdraw underlying from dv
                // slither-disable-next-line unused-return
                dvOut.withdrawUnderlying(params.amountOut, params.receiver);

                assetChange.idleIncrease = params._baseAsset.balanceOf(address(this)) - beforeBaseAssetBal;

                // Update the debt info snapshot
                (assetChange.debtDecrease, assetChange.debtIncrease) = _recalculateDestInfo(
                    destOutInfo, dvOut, originalShareBal, originalShareBal - params.amountOut, true
                );
            } else {
                // If we are shutdown then the only operations we should be performing are those that get
                // the base asset back to the vault. We shouldn't be sending out more
                if (params._shutdown) {
                    revert VaultShutdown();
                }
                // Working with idle baseAsset which should be in the vault already
                // Just send it out
                IERC20(params.tokenOut).safeTransfer(params.receiver, params.amountOut);
                assetChange.idleDecrease = params.amountOut;
            }
        }
    }

    function recalculateDestInfo(
        DestinationInfo storage destInfo,
        IDestinationVault destVault,
        uint256 originalShares,
        uint256 currentShares,
        bool resetDebtBasis
    ) external returns (uint256 totalDebtDecrease, uint256 totalDebtIncrease) {
        (totalDebtDecrease, totalDebtIncrease) =
            _recalculateDestInfo(destInfo, destVault, originalShares, currentShares, resetDebtBasis);
    }

    function _recalculateDestInfo(
        DestinationInfo storage destInfo,
        IDestinationVault destVault,
        uint256 originalShares,
        uint256 currentShares,
        bool resetDebtBasis
    ) private returns (uint256 totalDebtDecrease, uint256 totalDebtIncrease) {
        // Figure out what to back out of our totalDebt number.
        // We could have had withdraws since the last snapshot which means our
        // cached currentDebt number should be decreased based on the remaining shares
        // totalDebt is decreased using the same proportion of shares method during withdrawals
        // so this should represent whatever is remaining.

        // Figure out how much our debt is currently worth
        uint256 dvDebtValue = destVault.debtValue(currentShares);

        // Calculate what we're backing out based on the original shares
        uint256 currentDebt = (destInfo.currentDebt * originalShares) / Math.max(destInfo.ownedShares, 1);
        destInfo.currentDebt = dvDebtValue;
        destInfo.lastReport = block.timestamp;
        destInfo.ownedShares = currentShares;
        if (resetDebtBasis) {
            destInfo.debtBasis = dvDebtValue;
        }

        totalDebtDecrease = currentDebt;
        totalDebtIncrease = dvDebtValue;
    }
}

// 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: lib/openzeppelin-contracts/contracts/utils/Context.sol



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

pragma solidity ^0.8.0;

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

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

// File: src/interfaces/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: 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/libs/LibAdapter.sol



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

import { IERC20 } from "openzeppelin-contracts/token/ERC20/IERC20.sol";
import { SafeERC20 } from "openzeppelin-contracts/token/ERC20/utils/SafeERC20.sol";

library LibAdapter {
    using SafeERC20 for IERC20;

    address public constant CURVE_REGISTRY_ETH_ADDRESS_POINTER = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

    error MinLpAmountNotReached();
    error LpTokenAmountMismatch();
    error NoNonZeroAmountProvided();
    error InvalidBalanceChange();

    // Utils
    function _approve(IERC20 token, address spender, uint256 amount) internal {
        uint256 currentAllowance = token.allowance(address(this), spender);
        if (currentAllowance > 0) {
            token.safeDecreaseAllowance(spender, currentAllowance);
        }
        token.safeIncreaseAllowance(spender, amount);
    }
}

// File: lib/openzeppelin-contracts/contracts/utils/math/Math.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator
    ) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1);

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(
        uint256 x,
        uint256 y,
        uint256 denominator,
        Rounding rounding
    ) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10**64) {
                value /= 10**64;
                result += 64;
            }
            if (value >= 10**32) {
                value /= 10**32;
                result += 32;
            }
            if (value >= 10**16) {
                value /= 10**16;
                result += 16;
            }
            if (value >= 10**8) {
                value /= 10**8;
                result += 8;
            }
            if (value >= 10**4) {
                value /= 10**4;
                result += 4;
            }
            if (value >= 10**2) {
                value /= 10**2;
                result += 2;
            }
            if (value >= 10**1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10**result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result * 8) < value ? 1 : 0);
        }
    }
}

// File: lib/openzeppelin-contracts/contracts/utils/structs/EnumerableSet.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.

pragma solidity ^0.8.0;

/**
 * @dev Library for managing
 * https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
 * types.
 *
 * Sets have the following properties:
 *
 * - Elements are added, removed, and checked for existence in constant time
 * (O(1)).
 * - Elements are enumerated in O(n). No guarantees are made on the ordering.
 *
 * ```
 * contract Example {
 *     // Add the library methods
 *     using EnumerableSet for EnumerableSet.AddressSet;
 *
 *     // Declare a set state variable
 *     EnumerableSet.AddressSet private mySet;
 * }
 * ```
 *
 * As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
 * and `uint256` (`UintSet`) are supported.
 *
 * [WARNING]
 * ====
 * Trying to delete such a structure from storage will likely result in data corruption, rendering the structure
 * unusable.
 * See https://github.com/ethereum/solidity/pull/11843[ethereum/solidity#11843] for more info.
 *
 * In order to clean an EnumerableSet, you can either remove all elements one by one or create a fresh instance using an
 * array of EnumerableSet.
 * ====
 */
library EnumerableSet {
    // To implement this library for multiple types with as little code
    // repetition as possible, we write it in terms of a generic Set type with
    // bytes32 values.
    // The Set implementation uses private functions, and user-facing
    // implementations (such as AddressSet) are just wrappers around the
    // underlying Set.
    // This means that we can only create new EnumerableSets for types that fit
    // in bytes32.

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

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

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

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

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

            if (lastIndex != toDeleteIndex) {
                bytes32 lastValue = set._values[lastIndex];

                // Move the last value to the index where the value to delete is
                set._values[toDeleteIndex] = lastValue;
                // Update the index for the moved value
                set._indexes[lastValue] = valueIndex; // Replace lastValue's index to valueIndex
            }

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

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

            return true;
        } else {
            return false;
        }
    }

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

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

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

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function _values(Set storage set) private view returns (bytes32[] memory) {
        return set._values;
    }

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

    /**
     * @dev Add a value to a set. O(1).
     *
     * Returns true if the value was added to the set, that is if it was not
     * already present.
     */
    function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _add(set._inner, value);
    }

    /**
     * @dev Removes a value from a set. O(1).
     *
     * Returns true if the value was removed from the set, that is if it was
     * present.
     */
    function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
        return _remove(set._inner, value);
    }

    /**
     * @dev Returns true if the value is in the set. O(1).
     */
    function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
        return _contains(set._inner, value);
    }

    /**
     * @dev Returns the number of values in the set. O(1).
     */
    function length(Bytes32Set storage set) internal view returns (uint256) {
        return _length(set._inner);
    }

    /**
     * @dev Returns the value stored at position `index` in the set. O(1).
     *
     * Note that there are no guarantees on the ordering of values inside the
     * array, and it may change when more values are added or removed.
     *
     * Requirements:
     *
     * - `index` must be strictly less than {length}.
     */
    function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
        return _at(set._inner, index);
    }

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
        bytes32[] memory store = _values(set._inner);
        bytes32[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

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

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

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

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

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

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(AddressSet storage set) internal view returns (address[] memory) {
        bytes32[] memory store = _values(set._inner);
        address[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

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

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

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

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

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

    /**
     * @dev Return the entire set in an array
     *
     * WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
     * to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
     * this function has an unbounded cost, and using it as part of a state-changing function may render the function
     * uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
     */
    function values(UintSet storage set) internal view returns (uint256[] memory) {
        bytes32[] memory store = _values(set._inner);
        uint256[] memory result;

        /// @solidity memory-safe-assembly
        assembly {
            result := store
        }

        return result;
    }
}

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

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

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

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

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

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



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

import { IStrategy } from "src/interfaces/strategy/IStrategy.sol";

interface ILMPStrategy {
    /// @notice verify that a rebalance (swap between destinations) meets all the strategy constraints
    /// @dev Signature identical to IStrategy.verifyRebalance
    function verifyRebalance(
        IStrategy.RebalanceParams memory,
        IStrategy.SummaryStats memory
    ) external returns (bool, string memory message);

    /// @notice called by the LMPVault when NAV is updated
    /// @dev can only be called by the strategy's registered LMPVault
    /// @param navPerShare The navPerShare to record
    function navUpdate(uint256 navPerShare) external;

    /// @notice called by the LMPVault when a rebalance is completed
    /// @dev can only be called by the strategy's registered LMPVault
    /// @param rebalanceParams The parameters for the rebalance that was executed
    function rebalanceSuccessfullyExecuted(IStrategy.RebalanceParams memory rebalanceParams) external;

    /// @notice called by the LMPVault during rebalance process
    /// @param rebalanceParams The parameters for the rebalance that was executed
    function getRebalanceOutSummaryStats(IStrategy.RebalanceParams memory rebalanceParams)
        external
        returns (IStrategy.SummaryStats memory outSummary);
}

// 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);
}