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// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.24;

import {ERC20} from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {ReentrancyGuardUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/ReentrancyGuardUpgradeable.sol";
import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import {ERC1967Utils} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol";
import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import {Ownable2StepUpgradeable} from "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol";

import {EGETH} from "src/EGETH.sol";
import {IAggregator, IAssetInfo, IAssets, IConfigAggregator} from "src/interfaces/IAggregator.sol";
import {LRTProtocolsManager} from "src/LRTProtocolsManager.sol";
import {IKelpLRTDepositPool} from "src/interfaces/kelp/IKelpLRTDepositPool.sol";
import {IRSETH} from "src/interfaces/kelp/IRSETH.sol";

/**
 * @title Builda ETH Restaking Aggregator
 *
 * Builda Aggregator is a restaking ETH aggregator that allows users to deposit ETH and LRT tokens to receive egETH in return.
 * The aggregator restake ETH into different Liquid Restaking protocols.
 * EgETH is a rebasing token that represents the user's share of the total value locked in the aggregator.
 * The token's main utility is to participate in crowdfundings on Builda.
 */
contract Aggregator is
    Initializable,
    UUPSUpgradeable,
    ReentrancyGuardUpgradeable,
    Ownable2StepUpgradeable,
    IAggregator
{
    //--------------------------------------------------------------------------------------
    //-------------------------------------  EVENTS  ---------------------------------------
    //--------------------------------------------------------------------------------------

    event Deposit(address indexed account, uint256 amount, address indexed token);
    event Withdraw(address indexed account, uint256 amount, address indexed token);
    event TargetWeightsUpdated(uint256 etherFiWeight, uint256 renzoWeight, uint256 kelpWeight);
    event Paused(address indexed account);
    event UnPaused(address indexed account);
    event EthTokenAddressUpdated(address ethAddress);
    event CurrentPooledEtherUpdated(uint256 totalPooledEther);

    //--------------------------------------------------------------------------------------
    //-------------------------------------  ERRORS  ---------------------------------------
    //--------------------------------------------------------------------------------------

    error Aggregator__NoDirectETHTransfer();
    error Aggregator__TokenNotAllowed();
    error Aggregator__AmountMustBeGreaterThanZero();
    error Aggregator__AmountExceedsMaxWithdrawal();
    error Aggregator__InsufficientAllowance();
    error Aggregator__InsufficientAmount();
    error Aggregator__InsufficientSharesAmount();
    error Aggregator__InvalidAmount();
    error Aggregator__MinimumDepositAmount();
    error Aggregator__InvalidAmountToMint();
    error Aggregator__BelowMinETHDeposit();
    error Aggregator__InvalidTotalWeight();
    error Aggregator__InvalidAddress();
    error Aggregator__ContractPaused();
    error Aggregator__OnlyAdmin();

    //--------------------------------------------------------------------------------------
    //---------------------------------  STATE-VARIABLES  ----------------------------------
    //--------------------------------------------------------------------------------------

    // native ETH as ERC20 for KelpDAO deposit
    address public ETH_TOKEN;

    // used to scale the weight of the LRT tokens & adjustement for calculations
    uint256 private constant SCALE_FACTOR = 1e18;
    uint256 private constant TOTAL_WEIGHT_BASIS = 1e3; // weight total

    /// @dev flag to control whether deposits/withdrawal are paused
    bool public paused;

    mapping(address => bool) public admins;

    EGETH public egETH;
    LRTProtocolsManager public lrtManager;
    address public bldTreasury;

    // LRT tokens currently allowed in the aggregator
    mapping(address token => bool isAllowed) public allowedTokens;

    /// @dev LRT tokens
    IAssetInfo public etherFiEETH;
    IAssetInfo public renzoEzETH;
    IAssetInfo public kelpRsETH;

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }

    //--------------------------------------------------------------------------------------
    //------------------------------------  MODIFIERS  -------------------------------------
    //--------------------------------------------------------------------------------------

    /// @dev Only allows execution if token is allowed
    modifier isAllowed(address _token) {
        if (!allowedTokens[_token]) {
            revert Aggregator__TokenNotAllowed();
        }
        _;
    }

    /// @dev Only allows execution if contract is not paused
    modifier notPaused() {
        if (paused) revert Aggregator__ContractPaused();
        _;
    }

    /// @dev Only allows execution if caller is an admin
    modifier onlyAdmin() {
        if (!admins[msg.sender]) revert Aggregator__OnlyAdmin();
        _;
    }

    //--------------------------------------------------------------------------------------
    //-------------------------------------  EXTERNAL  -------------------------------------
    //--------------------------------------------------------------------------------------

    /// @dev prohibit direct transfer to contract
    receive() external payable {
        revert Aggregator__NoDirectETHTransfer();
    }

    /// @dev prohibit direct transfer to contract
    fallback() external payable {
        revert Aggregator__NoDirectETHTransfer();
    }

    /**
     * @dev proxy initialization
     *
     * @param _configAggregator containing admin, treasury and egETH addresses
     * @param _lrtManager LRT protocols manager address
     * @param _assets containing etherFiEETH, renzoEzETH and kelpRsETH with their corresponding weights
     */
    function initialize(IConfigAggregator memory _configAggregator, address _lrtManager, IAssets memory _assets)
        external
        payable
        initializer
    {
        uint256 initialAmount = msg.value;
        if (initialAmount == 0) {
            revert Aggregator__AmountMustBeGreaterThanZero();
        }
        __Ownable_init(msg.sender);
        __ReentrancyGuard_init();
        __UUPSUpgradeable_init();
        bldTreasury = _configAggregator.treasury;
        egETH = EGETH(_configAggregator.egETH);
        lrtManager = LRTProtocolsManager(_lrtManager);
        etherFiEETH = _assets.etherFieEth;
        renzoEzETH = _assets.renzoEzEth;
        kelpRsETH = _assets.kelpRsETH;
        allowedTokens[address(_assets.etherFieEth.asset)] = true;
        allowedTokens[address(_assets.renzoEzEth.asset)] = true;
        allowedTokens[address(_assets.kelpRsETH.asset)] = true;
        admins[_configAggregator.admin] = true;

        // set the ETH token address
        ETH_TOKEN = _configAggregator.ethTokenAddress;

        // deposit ETH to LRT protocols
        _depositOnLRTProtocols(initialAmount);

        _mintInitialShares();
    }

    /**
     * @notice Deposits ETH to the aggregator and mints egETH, min: 0.01 ETH
     * ETH will be distributed to the different LRT protocols based on their target weights
     * LRT protocols will mint their respective LRT tokens and deposit them to the aggregator
     *
     * Requirements:
     *
     * - `msg.value` cannot be zero.
     * - `msg.value` must be equal or higher than the minimum deposit amount of ETH.
     */
    function depositETH() external payable nonReentrant notPaused {
        uint256 amount = msg.value;

        if (amount < minDepositETH()) {
            revert Aggregator__BelowMinETHDeposit();
        }

        // deposit ETH to LRT protocols relative to their target weight to mint their respective LRT tokens
        _depositOnLRTProtocols(amount);

        // mint egETH to the user
        egETH.mint(msg.sender, amount);
    }

    /**
     * @notice Deposits LRT to the aggregator and mints egETH
     *
     * @param asset LRT token address
     * @param amount LRT amount
     * @param minEgETHAmount Minimum egETH amount to mint
     *
     * Requirements:
     *
     * - `amount` cannot be zero.
     * - `asset` must be an allowed asset.
     * - `asset` allowance must be equal or higher than amount.
     * - Amount minted should be equal or higher than `minEgETHAmount`
     */
    function depositLRT(address asset, uint256 amount, uint256 minEgETHAmount)
        external
        nonReentrant
        isAllowed(asset)
        notPaused
    {
        if (amount == 0) {
            revert Aggregator__AmountMustBeGreaterThanZero();
        }

        if (IERC20(asset).allowance(msg.sender, address(this)) < amount) {
            revert Aggregator__InsufficientAllowance();
        }

        // update the price of rsETH
        lrtManager.updateRsETHPrice();

        uint256 previewEgETHAmount = _previewDepositLRT(asset, amount);

        uint256 rounding = 1e2;

        if ((previewEgETHAmount + rounding) < minEgETHAmount) {
            revert Aggregator__InvalidAmountToMint();
        }

        IERC20 _asset = IERC20(asset);

        // slither-disable-next-line reentrancy-no-eth
        SafeERC20.safeTransferFrom(_asset, msg.sender, address(this), amount);

        uint256 ethDeposited = convertLRTSharesToEth(asset, amount);
        emit Deposit(msg.sender, ethDeposited, asset);

        // update the total pooled ETH
        egETH.mint(msg.sender, previewEgETHAmount);
    }

    /**
     * @notice Withdraws LRT from the aggregator and burns egETH
     *
     * @param assetToWithdraw LRT token address
     * @param egShares egETH amount to burn
     *
     * Requirements:
     *
     * - `egShares` cannot be zero.
     * - `assetToWithdraw` must be an allowed asset.
     * - Balance of egETH must be equal or higher than `egShares`.
     * - egETH allowance must be equal or higher than amount of `egShares`.
     * - `egShares` must be equal or lower than the maximum amount of egETH that can be used to withdraw the given LRT token.
     */
    function withdrawLRT(address assetToWithdraw, uint256 egShares)
        external
        payable
        nonReentrant
        isAllowed(assetToWithdraw)
    {
        if (egShares == 0) {
            revert Aggregator__AmountMustBeGreaterThanZero();
        }
        // check if the user has enough egETH to withdraw
        if (balanceOf(msg.sender) < egShares) {
            revert Aggregator__InsufficientAmount();
        }

        // update the price of rsETH
        lrtManager.updateRsETHPrice();

        // check if the amount of egETH to withdraw is within the limit
        if (egShares > maxLRTWithdrawInEgETH(assetToWithdraw)) {
            revert Aggregator__AmountExceedsMaxWithdrawal();
        }
        // check if the user has enough allowance to withdraw
        if (egETH.allowance(msg.sender, address(this)) < egShares) {
            revert Aggregator__InsufficientAllowance();
        }

        IERC20 _asset = IERC20(assetToWithdraw);

        uint256 assetShares = convertEgETHToLRTShares(assetToWithdraw, egShares);

        egETH.burn(msg.sender, egShares);

        SafeERC20.safeTransfer(_asset, msg.sender, assetShares);
        emit Withdraw(msg.sender, egShares, assetToWithdraw);
    }

    /**
     * @notice Sets the target weights for the LRT tokens
     *
     * DAO will be able to adjust the target weights to rebalance the LRT tokens in the aggregator
     *
     * @param etherFiWeight EtherFi target weight
     * @param renzoWeight Renzo target weight
     * @param kelpWeight Kelp target weight
     *
     * Requirements:
     *
     * - `etherFiWeight`, `renzoWeight`, `kelpWeight` addition must be equal to 100%.
     */
    function setTargetWeights(uint256 etherFiWeight, uint256 renzoWeight, uint256 kelpWeight) external onlyAdmin {
        // check if the total weight is equal to 100%
        if (etherFiWeight + renzoWeight + kelpWeight != TOTAL_WEIGHT_BASIS) {
            revert Aggregator__InvalidTotalWeight();
        }
        etherFiEETH.targetWeight = etherFiWeight;
        renzoEzETH.targetWeight = renzoWeight;
        kelpRsETH.targetWeight = kelpWeight;
        emit TargetWeightsUpdated(etherFiWeight, renzoWeight, kelpWeight);
    }

    /**
     * @notice Sets the paused flag
     *
     * @param _paused Paused boolean flag
     */
    function setPaused(bool _paused) external onlyAdmin {
        paused = _paused;
        if (_paused) {
            emit Paused(msg.sender);
        } else {
            emit UnPaused(msg.sender);
        }
    }

    /**
     * @notice Change the EthTokenAddress for KelpDAO
     * @param ethAddress the ETH token address
     */
    function setEthTokenAddress(address ethAddress) external onlyOwner {
        if (ethAddress == address(0)) {
            revert Aggregator__InvalidAddress();
        }
        ETH_TOKEN = ethAddress;
        emit EthTokenAddressUpdated(ethAddress);
    }

    /**
     * @notice Get the implementation address
     * @return Implementation address
     */
    function getImplementation() external view returns (address) {
        return ERC1967Utils.getImplementation();
    }

    /**
     * @notice Preview the amount of egETH to mint for a given amount of ETH
     *
     * @param amount Amount of ETH to deposit
     * @return Amount of egETH to mint
     *
     * Requirements:
     *
     * - `amount` must be higher than zero.
     */
    function previewDepositETH(uint256 amount) external view returns (uint256) {
        return convertEthToEgETH(amount);
    }

    /**
     * @notice Preview the amount of egETH to mint for a given amount of LRT
     *
     * @param asset LRT token address
     * @param amount Amount of LRT to deposit
     * @return Amount of egETH to mint
     *
     * Requirements:
     *
     * - `amount` must be higher than zero.
     */
    function previewDepositLRT(address asset, uint256 amount) external view isAllowed(asset) returns (uint256) {
        return _previewDepositLRT(asset, amount);
    }

    /**
     * @notice Preview the amount of LRT to withdraw for a given amount of egETH
     *
     * @param asset LRT token address to withdraw
     * @param shares Amount of egETH
     * @return Amount of LRT to withdraw
     *
     * Requirements:
     *
     * - `shares` must be higher than zero.
     * - `shares` must be lower than the maximum amount of egETH that can be used to withdraw the given LRT token.
     */
    function previewWithdrawLRT(address asset, uint256 shares) external view isAllowed(asset) returns (uint256) {
        if (shares == 0) {
            return 0;
        }
        if (shares > maxLRTWithdrawInEgETH(asset)) {
            revert Aggregator__AmountExceedsMaxWithdrawal();
        }

        uint256 assetShares = convertEgETHToLRTShares(asset, shares);

        return assetShares;
    }

    /**
     * @notice Get the total amount of egETH minted
     * @return Total ETH
     */
    function totalPooledEther() external view returns (uint256) {
        return _totalPooledEther();
    }

    /**
     * @notice Get the current target weights
     * @return EtherFi target weight
     * @return Renzo target weight
     * @return Kelp target weight
     */
    function targetWeights() external view returns (uint256, uint256, uint256) {
        return (etherFiEETH.targetWeight, renzoEzETH.targetWeight, kelpRsETH.targetWeight);
    }

    //--------------------------------------------------------------------------------------
    //-------------------------------------  PUBLIC  ---------------------------------------
    //--------------------------------------------------------------------------------------

    /**
     * @notice Get the minimum deposit amount of ETH
     * @return Minimum deposit amount
     */
    function minDepositETH() public pure returns (uint256) {
        return 1e16;
    }

    /**
     * @notice Get the maximum amount of egETH that can be used to withdraw a given LRT token
     *
     * @param _asset LRT token address
     * @return Maximum amount of egETH that can be used to withdraw
     *
     */
    function maxLRTWithdrawInEgETH(address _asset) public view returns (uint256) {
        (uint256 eETHBalance, uint256 ezETHBalance, uint256 rsETHBalance) = totalAssets();
        if (_asset == address(etherFiEETH.asset)) {
            return convertLRTSharesToEgETH(_asset, eETHBalance);
        } else if (_asset == address(renzoEzETH.asset)) {
            return convertLRTSharesToEgETH(_asset, ezETHBalance);
        }
        return convertLRTSharesToEgETH(_asset, rsETHBalance);
    }

    /**
     * @notice Get the current egETH balance of an account
     *
     * @param _account Account address
     * @return egETH balance
     */
    function balanceOf(address _account) public view returns (uint256) {
        return egETH.balanceOf(_account);
    }

    /**
     * @notice Get the total amount of LRT tokens held by the aggregator
     *
     * @return EtherFi balance
     * @return Renzo balance
     * @return Kelp balance
     */
    function totalAssets() public view returns (uint256, uint256, uint256) {
        return (
            etherFiEETH.asset.balanceOf(address(this)),
            renzoEzETH.asset.balanceOf(address(this)),
            kelpRsETH.asset.balanceOf(address(this))
        );
    }

    /**
     * @notice Get the total amount of Ether backed by each LRT tokens held by the aggregator
     *
     * @return EtherFi balance
     * @return Renzo balance
     * @return Kelp balance
     */
    function totalCurrentTVLs() public view returns (uint256, uint256, uint256) {
        (uint256 etherFiShares, uint256 renzoShares, uint256 kelpShares) = totalAssets();
        return lrtManager.totalProtocolsEther(etherFiShares, kelpShares, renzoShares, renzoEzETH.asset.totalSupply());
    }

    /**
     * @notice ETH to egETH converter
     *
     * @param _amount ETH amount
     * @return egETH amount
     *
     * Requirements:
     *
     * - `_amount` must be higher than zero.
     */
    function convertEthToEgETH(uint256 _amount) public view returns (uint256) {
        if (_amount == 0) {
            return 0;
        }
        return _convertEthToEgETH(_amount);
    }

    /**
     * @notice ETH to LRT shares converter
     *
     * @param asset LRT token address
     * @param ethAmount ETH amount
     * @return LRT shares
     *
     * Requirements:
     *
     * - `ethAmount` must be higher than zero.
     * - `asset` must be an allowed asset.
     */
    function convertEthToLRTShares(address asset, uint256 ethAmount) public view isAllowed(asset) returns (uint256) {
        if (ethAmount == 0) {
            return 0;
        }

        if (asset == address(etherFiEETH.asset)) {
            return lrtManager.etherFiEthAndAmount(ethAmount);
        } else if (asset == address(renzoEzETH.asset)) {
            return lrtManager.ethToRenzoEth(ethAmount, renzoEzETH.asset.totalSupply());
        }
        return lrtManager.ethToKelpEth(ethAmount);
    }

    /**
     * @notice LRT shares to ETH converter
     *
     * @param asset LRT token address
     * @param shares LRT shares
     * @return ETH amount
     *
     * Requirements:
     *
     * - `shares` must be higher than zero.
     * - `asset` must be an allowed asset.
     */
    function convertLRTSharesToEth(address asset, uint256 shares) public view isAllowed(asset) returns (uint256) {
        if (shares == 0) {
            return 0;
        }

        if (asset == address(etherFiEETH.asset)) {
            return lrtManager.etherFiEthAndAmount(shares);
        } else if (asset == address(renzoEzETH.asset)) {
            return lrtManager.renzoEthAmount(shares, renzoEzETH.asset.totalSupply());
        }
        return lrtManager.kelpEthAmount(shares);
    }

    /**
     * @notice LRT shares to egETH converter
     *
     * @param asset LRT token address
     * @param shares LRT shares
     * @return egETH amount
     *
     * Requirements:
     *
     * - `shares` must be higher than zero.
     * - `asset` must be an allowed asset.
     */
    function convertLRTSharesToEgETH(address asset, uint256 shares) public view isAllowed(asset) returns (uint256) {
        if (shares == 0) {
            return 0;
        }
        uint256 amount = convertLRTSharesToEth(asset, shares);
        return amount;
        // return convertEthToEgETH(ethAmount);
    }

    /**
     * @notice egETH to LRT shares converter
     *
     * @param asset LRT token address
     * @param egShares egETH amount
     * @return LRT shares
     *
     * Requirements:
     *
     * - `egShares` must be higher than zero.
     * - `asset` must be an allowed asset.
     */
    function convertEgETHToLRTShares(address asset, uint256 egShares) public view isAllowed(asset) returns (uint256) {
        return convertEthToLRTShares(asset, egShares);
    }

    /**
     * @notice Get the current weights of the LRT tokens in the aggregator
     *
     * @return Current EtherFi weight
     * @return Current Renzo weight
     * @return Current Kelp weight
     */
    function currentWeights() public view returns (uint256, uint256, uint256) {
        (uint256 _etherFiShares, uint256 _renzoShares, uint256 _kelpShares) = totalAssets();
        uint256 totalEth = _totalPooledEther();

        // get individual weight for each LRT from shares
        (uint256 etherFiWeight, uint256 renzoWeight, uint256 kelpWeight) =
            _weightsFromShares(_etherFiShares, _renzoShares, _kelpShares, totalEth);

        return (etherFiWeight, renzoWeight, kelpWeight);
    }

    //--------------------------------------------------------------------------------------
    //-------------------------------------  INTERNAL  -------------------------------------
    //--------------------------------------------------------------------------------------

    // @dev Allows only the owner to upgrade the contract
    function _authorizeUpgrade(address _newImplementation) internal override onlyOwner {}

    //--------------------------------------------------------------------------------------
    //-------------------------------------  PRIVATE  --------------------------------------
    //--------------------------------------------------------------------------------------

    /**
     * @notice Mint initial egETH shares to the deployer of the contract
     * this is to avoid the initial minting of egETH to be gamed
     */
    function _mintInitialShares() private {
        uint256 sharesAmount = _totalPooledEther();
        egETH.mintInitialShares(msg.sender, sharesAmount);
    }

    /**
     * @notice Deposit ETH to the LRT protocols
     * The ETH amount is distributed to the LRT protocols based on their target weights
     *
     * @param _amount ETH amount
     */
    function _depositOnLRTProtocols(uint256 _amount) private {
        bool isPausedEtherFi = lrtManager.etherFiDeposit().paused();
        bool isPausedRenzo = lrtManager.renzoDeposit().paused();
        bool isPausedKelp = lrtManager.kelpDeposit().paused();

        if (isPausedEtherFi || isPausedRenzo || isPausedKelp) {
            revert Aggregator__ContractPaused();
        }

        uint256 etherFiAmount = _amount * etherFiEETH.targetWeight / TOTAL_WEIGHT_BASIS;
        uint256 renzoAmount = _amount * renzoEzETH.targetWeight / TOTAL_WEIGHT_BASIS;
        uint256 kelpAmount = _amount * kelpRsETH.targetWeight / TOTAL_WEIGHT_BASIS;
        lrtManager.etherFiDeposit().deposit{value: etherFiAmount}();
        lrtManager.renzoDeposit().depositETH{value: renzoAmount}();
        IKelpLRTDepositPool lrtKelpDeposit = lrtManager.kelpDeposit();
        uint256 minReceiveFromDeposit = lrtKelpDeposit.getRsETHAmountToMint(address(ETH_TOKEN), kelpAmount);
        lrtKelpDeposit.depositETH{value: kelpAmount}(minReceiveFromDeposit, "0");
        emit Deposit(msg.sender, _amount, address(0));
    }

    /**
     * @notice Get the total amount of ETH in the LRT protocols backed by LRT tokens in the aggregator
     * @return Total ETH
     */
    function _totalProtocolsEther() private view returns (uint256) {
        (uint256 etherFiShares, uint256 renzoShares, uint256 kelpShares) = totalAssets();
        return lrtManager.totalEthAmount(etherFiShares, kelpShares, renzoShares, renzoEzETH.asset.totalSupply());
    }

    /**
     * @notice Get the total amount of ETH in the LRT protocols backed by LRT tokens in the aggregator and ETH in the aggregator
     * @return Total ETH
     */
    function _totalPooledEther() private view returns (uint256) {
        return _totalProtocolsEther() + address(this).balance;
    }

    /**
     * @notice Preview the amount of egETH to mint for a given amount of LRT
     *
     * @param asset LRT token address
     * @param amount LRT amount
     * @return egETH amount
     */
    function _previewDepositLRT(address asset, uint256 amount) private view returns (uint256) {
        uint256 userAmountValue = convertLRTSharesToEth(asset, amount);
        return _convertEthToEgETH(userAmountValue);
    }

    /**
     * @notice Convert ETH to egETH
     * @param newETHAmount ETH amount to convert
     * @return egETH amount
     */
    function _convertEthToEgETH(uint256 newETHAmount) private view returns (uint256) {
        uint256 shares = egETH.getSharesByPooledEth(newETHAmount);
        uint256 ethAmount = egETH.getPooledEthByShares(shares);
        return ethAmount;
    }

    /**
     * @notice Preview the weights after a withdrawal
     *
     * @param asset LRT token address
     * @param amount amount of egETH
     * @return EtherFi after withdrawal weight
     * @return Renzo after withdrawal weight
     * @return Kelp after withdrawal weight
     */
    function _previewWeightsAfterWithdraw(address asset, uint256 amount)
        private
        view
        returns (uint256, uint256, uint256)
    {
        (uint256 _etherFiShares, uint256 _renzoShares, uint256 _kelpShares) = totalAssets();
        uint256 totalEth = _totalPooledEther();

        uint256 assetShares = convertEthToLRTShares(asset, amount);
        // uint256 assetShares = convertEgETHToLRTShares(asset, amount);

        if (asset == address(etherFiEETH.asset)) {
            _etherFiShares -= assetShares;
        } else if (asset == address(renzoEzETH.asset)) {
            _renzoShares -= assetShares;
        } else if (asset == address(kelpRsETH.asset)) {
            _kelpShares -= assetShares;
        }
        (uint256 etherFiWeight, uint256 renzoWeight, uint256 kelpWeight) =
            _weightsFromShares(_etherFiShares, _renzoShares, _kelpShares, (totalEth - amount));

        return (etherFiWeight, renzoWeight, kelpWeight);
    }

    /**
     * @notice Calculate the weights from the LRT shares and a ETH value
     *
     * @param etherFiShares EtherFi shares
     * @param renzoShares Renzo shares
     * @param kelpShares Kelp shares
     * @param totalEth Total ETH
     * @return EtherFi weight
     * @return Renzo weight
     * @return Kelp weight
     */
    function _weightsFromShares(uint256 etherFiShares, uint256 renzoShares, uint256 kelpShares, uint256 totalEth)
        private
        view
        returns (uint256, uint256, uint256)
    {
        // get individual eth value for each LRT
        uint256 eETHValue = lrtManager.etherFiEthAndAmount(etherFiShares);
        uint256 renzoValue = lrtManager.renzoEthAmount(renzoShares, renzoEzETH.asset.totalSupply());
        uint256 kelpValue = lrtManager.kelpEthAmount(kelpShares);

        // calculate weights based on a ETH value
        // uint256 etherFiWeight = eETHValue * TOTAL_WEIGHT_BASIS / totalEth;
        // uint256 renzoWeight = renzoValue * TOTAL_WEIGHT_BASIS / totalEth;
        // uint256 kelpWeight = kelpValue * TOTAL_WEIGHT_BASIS / totalEth;

        uint256 etherFiWeightRounded = roundedDiv(eETHValue * TOTAL_WEIGHT_BASIS, totalEth);
        uint256 renzoWeightRounded = roundedDiv(renzoValue * TOTAL_WEIGHT_BASIS, totalEth);
        uint256 kelpWeightRounded = roundedDiv(kelpValue * TOTAL_WEIGHT_BASIS, totalEth);

        return (etherFiWeightRounded, renzoWeightRounded, kelpWeightRounded);
    }

    /**
     * @dev Division, round to nearest integer (AKA round-half-up)
     * @param a What to divide
     * @param b Divide by this number
     */
    function roundedDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // Solidity automatically throws, but please emit reason
        require(b > 0, "div by 0");

        uint256 halfB = (b % 2 == 0) ? (b / 2) : (b / 2 + 1);
        return (a % b >= halfB) ? (a / b + 1) : (a / b);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC-20
 * applications.
 */
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    mapping(address account => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

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

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

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

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

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

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

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

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Skips emitting an {Approval} event indicating an allowance update. This is not
     * required by the ERC. See {xref-ERC20-_approve-address-address-uint256-bool-}[_approve].
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                _totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     *
     * ```solidity
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC1363} from "../../../interfaces/IERC1363.sol";
import {Address} from "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC-20 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;

    /**
     * @dev An operation with an ERC-20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            safeTransfer(token, to, value);
        } else if (!token.transferAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
     * has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * Reverts if the returned value is other than `true`.
     */
    function transferFromAndCallRelaxed(
        IERC1363 token,
        address from,
        address to,
        uint256 value,
        bytes memory data
    ) internal {
        if (to.code.length == 0) {
            safeTransferFrom(token, from, to, value);
        } else if (!token.transferFromAndCall(from, to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
     * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
     * targeting contracts.
     *
     * NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
     * Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
     * once without retrying, and relies on the returned value to be true.
     *
     * Reverts if the returned value is other than `true`.
     */
    function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
        if (to.code.length == 0) {
            forceApprove(token, to, value);
        } else if (!token.approveAndCall(to, value, data)) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @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);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @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).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // 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 cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuardUpgradeable is Initializable {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant NOT_ENTERED = 1;
    uint256 private constant ENTERED = 2;

    /// @custom:storage-location erc7201:openzeppelin.storage.ReentrancyGuard
    struct ReentrancyGuardStorage {
        uint256 _status;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ReentrancyGuard")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant ReentrancyGuardStorageLocation = 0x9b779b17422d0df92223018b32b4d1fa46e071723d6817e2486d003becc55f00;

    function _getReentrancyGuardStorage() private pure returns (ReentrancyGuardStorage storage $) {
        assembly {
            $.slot := ReentrancyGuardStorageLocation
        }
    }

    /**
     * @dev Unauthorized reentrant call.
     */
    error ReentrancyGuardReentrantCall();

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

    function __ReentrancyGuard_init_unchained() internal onlyInitializing {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        $._status = NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        // On the first call to nonReentrant, _status will be NOT_ENTERED
        if ($._status == ENTERED) {
            revert ReentrancyGuardReentrantCall();
        }

        // Any calls to nonReentrant after this point will fail
        $._status = ENTERED;
    }

    function _nonReentrantAfter() private {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        $._status = NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        ReentrancyGuardStorage storage $ = _getReentrancyGuardStorage();
        return $._status == ENTERED;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

/**
 * @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]
 * ```solidity
 * 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 Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 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 in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reininitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._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 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._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() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @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 {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

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

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        assembly {
            $.slot := INITIALIZABLE_STORAGE
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/ERC1967/ERC1967Utils.sol)

pragma solidity ^0.8.20;

import {IBeacon} from "../beacon/IBeacon.sol";
import {IERC1967} from "../../interfaces/IERC1967.sol";
import {Address} from "../../utils/Address.sol";
import {StorageSlot} from "../../utils/StorageSlot.sol";

/**
 * @dev This abstract contract provides getters and event emitting update functions for
 * https://eips.ethereum.org/EIPS/eip-1967[ERC-1967] slots.
 */
library ERC1967Utils {
    /**
     * @dev Storage slot with the address of the current implementation.
     * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;

    /**
     * @dev The `implementation` of the proxy is invalid.
     */
    error ERC1967InvalidImplementation(address implementation);

    /**
     * @dev The `admin` of the proxy is invalid.
     */
    error ERC1967InvalidAdmin(address admin);

    /**
     * @dev The `beacon` of the proxy is invalid.
     */
    error ERC1967InvalidBeacon(address beacon);

    /**
     * @dev An upgrade function sees `msg.value > 0` that may be lost.
     */
    error ERC1967NonPayable();

    /**
     * @dev Returns the current implementation address.
     */
    function getImplementation() internal view returns (address) {
        return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value;
    }

    /**
     * @dev Stores a new address in the ERC-1967 implementation slot.
     */
    function _setImplementation(address newImplementation) private {
        if (newImplementation.code.length == 0) {
            revert ERC1967InvalidImplementation(newImplementation);
        }
        StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = newImplementation;
    }

    /**
     * @dev Performs implementation upgrade with additional setup call if data is nonempty.
     * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
     * to avoid stuck value in the contract.
     *
     * Emits an {IERC1967-Upgraded} event.
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) internal {
        _setImplementation(newImplementation);
        emit IERC1967.Upgraded(newImplementation);

        if (data.length > 0) {
            Address.functionDelegateCall(newImplementation, data);
        } else {
            _checkNonPayable();
        }
    }

    /**
     * @dev Storage slot with the admin of the contract.
     * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;

    /**
     * @dev Returns the current admin.
     *
     * TIP: To get this value clients can read directly from the storage slot shown below (specified by ERC-1967) using
     * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
     * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
     */
    function getAdmin() internal view returns (address) {
        return StorageSlot.getAddressSlot(ADMIN_SLOT).value;
    }

    /**
     * @dev Stores a new address in the ERC-1967 admin slot.
     */
    function _setAdmin(address newAdmin) private {
        if (newAdmin == address(0)) {
            revert ERC1967InvalidAdmin(address(0));
        }
        StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin;
    }

    /**
     * @dev Changes the admin of the proxy.
     *
     * Emits an {IERC1967-AdminChanged} event.
     */
    function changeAdmin(address newAdmin) internal {
        emit IERC1967.AdminChanged(getAdmin(), newAdmin);
        _setAdmin(newAdmin);
    }

    /**
     * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
     * This is the keccak-256 hash of "eip1967.proxy.beacon" subtracted by 1.
     */
    // solhint-disable-next-line private-vars-leading-underscore
    bytes32 internal constant BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;

    /**
     * @dev Returns the current beacon.
     */
    function getBeacon() internal view returns (address) {
        return StorageSlot.getAddressSlot(BEACON_SLOT).value;
    }

    /**
     * @dev Stores a new beacon in the ERC-1967 beacon slot.
     */
    function _setBeacon(address newBeacon) private {
        if (newBeacon.code.length == 0) {
            revert ERC1967InvalidBeacon(newBeacon);
        }

        StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon;

        address beaconImplementation = IBeacon(newBeacon).implementation();
        if (beaconImplementation.code.length == 0) {
            revert ERC1967InvalidImplementation(beaconImplementation);
        }
    }

    /**
     * @dev Change the beacon and trigger a setup call if data is nonempty.
     * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
     * to avoid stuck value in the contract.
     *
     * Emits an {IERC1967-BeaconUpgraded} event.
     *
     * CAUTION: Invoking this function has no effect on an instance of {BeaconProxy} since v5, since
     * it uses an immutable beacon without looking at the value of the ERC-1967 beacon slot for
     * efficiency.
     */
    function upgradeBeaconToAndCall(address newBeacon, bytes memory data) internal {
        _setBeacon(newBeacon);
        emit IERC1967.BeaconUpgraded(newBeacon);

        if (data.length > 0) {
            Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
        } else {
            _checkNonPayable();
        }
    }

    /**
     * @dev Reverts if `msg.value` is not zero. It can be used to avoid `msg.value` stuck in the contract
     * if an upgrade doesn't perform an initialization call.
     */
    function _checkNonPayable() private {
        if (msg.value > 0) {
            revert ERC1967NonPayable();
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/UUPSUpgradeable.sol)

pragma solidity ^0.8.20;

import {IERC1822Proxiable} from "@openzeppelin/contracts/interfaces/draft-IERC1822.sol";
import {ERC1967Utils} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol";
import {Initializable} from "./Initializable.sol";

/**
 * @dev An upgradeability mechanism designed for UUPS proxies. The functions included here can perform an upgrade of an
 * {ERC1967Proxy}, when this contract is set as the implementation behind such a proxy.
 *
 * A security mechanism ensures that an upgrade does not turn off upgradeability accidentally, although this risk is
 * reinstated if the upgrade retains upgradeability but removes the security mechanism, e.g. by replacing
 * `UUPSUpgradeable` with a custom implementation of upgrades.
 *
 * The {_authorizeUpgrade} function must be overridden to include access restriction to the upgrade mechanism.
 */
abstract contract UUPSUpgradeable is Initializable, IERC1822Proxiable {
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    address private immutable __self = address(this);

    /**
     * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgradeTo(address)`
     * and `upgradeToAndCall(address,bytes)` are present, and `upgradeTo` must be used if no function should be called,
     * while `upgradeToAndCall` will invoke the `receive` function if the second argument is the empty byte string.
     * If the getter returns `"5.0.0"`, only `upgradeToAndCall(address,bytes)` is present, and the second argument must
     * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function
     * during an upgrade.
     */
    string public constant UPGRADE_INTERFACE_VERSION = "5.0.0";

    /**
     * @dev The call is from an unauthorized context.
     */
    error UUPSUnauthorizedCallContext();

    /**
     * @dev The storage `slot` is unsupported as a UUID.
     */
    error UUPSUnsupportedProxiableUUID(bytes32 slot);

    /**
     * @dev Check that the execution is being performed through a delegatecall call and that the execution context is
     * a proxy contract with an implementation (as defined in ERC1967) pointing to self. This should only be the case
     * for UUPS and transparent proxies that are using the current contract as their implementation. Execution of a
     * function through ERC1167 minimal proxies (clones) would not normally pass this test, but is not guaranteed to
     * fail.
     */
    modifier onlyProxy() {
        _checkProxy();
        _;
    }

    /**
     * @dev Check that the execution is not being performed through a delegate call. This allows a function to be
     * callable on the implementing contract but not through proxies.
     */
    modifier notDelegated() {
        _checkNotDelegated();
        _;
    }

    function __UUPSUpgradeable_init() internal onlyInitializing {
    }

    function __UUPSUpgradeable_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Implementation of the ERC1822 {proxiableUUID} function. This returns the storage slot used by the
     * implementation. It is used to validate the implementation's compatibility when performing an upgrade.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy. This is guaranteed by the `notDelegated` modifier.
     */
    function proxiableUUID() external view virtual notDelegated returns (bytes32) {
        return ERC1967Utils.IMPLEMENTATION_SLOT;
    }

    /**
     * @dev Upgrade the implementation of the proxy to `newImplementation`, and subsequently execute the function call
     * encoded in `data`.
     *
     * Calls {_authorizeUpgrade}.
     *
     * Emits an {Upgraded} event.
     *
     * @custom:oz-upgrades-unsafe-allow-reachable delegatecall
     */
    function upgradeToAndCall(address newImplementation, bytes memory data) public payable virtual onlyProxy {
        _authorizeUpgrade(newImplementation);
        _upgradeToAndCallUUPS(newImplementation, data);
    }

    /**
     * @dev Reverts if the execution is not performed via delegatecall or the execution
     * context is not of a proxy with an ERC1967-compliant implementation pointing to self.
     * See {_onlyProxy}.
     */
    function _checkProxy() internal view virtual {
        if (
            address(this) == __self || // Must be called through delegatecall
            ERC1967Utils.getImplementation() != __self // Must be called through an active proxy
        ) {
            revert UUPSUnauthorizedCallContext();
        }
    }

    /**
     * @dev Reverts if the execution is performed via delegatecall.
     * See {notDelegated}.
     */
    function _checkNotDelegated() internal view virtual {
        if (address(this) != __self) {
            // Must not be called through delegatecall
            revert UUPSUnauthorizedCallContext();
        }
    }

    /**
     * @dev Function that should revert when `msg.sender` is not authorized to upgrade the contract. Called by
     * {upgradeToAndCall}.
     *
     * Normally, this function will use an xref:access.adoc[access control] modifier such as {Ownable-onlyOwner}.
     *
     * ```solidity
     * function _authorizeUpgrade(address) internal onlyOwner {}
     * ```
     */
    function _authorizeUpgrade(address newImplementation) internal virtual;

    /**
     * @dev Performs an implementation upgrade with a security check for UUPS proxies, and additional setup call.
     *
     * As a security check, {proxiableUUID} is invoked in the new implementation, and the return value
     * is expected to be the implementation slot in ERC1967.
     *
     * Emits an {IERC1967-Upgraded} event.
     */
    function _upgradeToAndCallUUPS(address newImplementation, bytes memory data) private {
        try IERC1822Proxiable(newImplementation).proxiableUUID() returns (bytes32 slot) {
            if (slot != ERC1967Utils.IMPLEMENTATION_SLOT) {
                revert UUPSUnsupportedProxiableUUID(slot);
            }
            ERC1967Utils.upgradeToAndCall(newImplementation, data);
        } catch {
            // The implementation is not UUPS
            revert ERC1967Utils.ERC1967InvalidImplementation(newImplementation);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable2Step.sol)

pragma solidity ^0.8.20;

import {OwnableUpgradeable} from "./OwnableUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which provides access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is specified at deployment time in the constructor for `Ownable`. This
 * can later be changed with {transferOwnership} and {acceptOwnership}.
 *
 * This module is used through inheritance. It will make available all functions
 * from parent (Ownable).
 */
abstract contract Ownable2StepUpgradeable is Initializable, OwnableUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Ownable2Step
    struct Ownable2StepStorage {
        address _pendingOwner;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable2Step")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant Ownable2StepStorageLocation = 0x237e158222e3e6968b72b9db0d8043aacf074ad9f650f0d1606b4d82ee432c00;

    function _getOwnable2StepStorage() private pure returns (Ownable2StepStorage storage $) {
        assembly {
            $.slot := Ownable2StepStorageLocation
        }
    }

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

    function __Ownable2Step_init() internal onlyInitializing {
    }

    function __Ownable2Step_init_unchained() internal onlyInitializing {
    }
    /**
     * @dev Returns the address of the pending owner.
     */
    function pendingOwner() public view virtual returns (address) {
        Ownable2StepStorage storage $ = _getOwnable2StepStorage();
        return $._pendingOwner;
    }

    /**
     * @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual override onlyOwner {
        Ownable2StepStorage storage $ = _getOwnable2StepStorage();
        $._pendingOwner = newOwner;
        emit OwnershipTransferStarted(owner(), newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual override {
        Ownable2StepStorage storage $ = _getOwnable2StepStorage();
        delete $._pendingOwner;
        super._transferOwnership(newOwner);
    }

    /**
     * @dev The new owner accepts the ownership transfer.
     */
    function acceptOwnership() public virtual {
        address sender = _msgSender();
        if (pendingOwner() != sender) {
            revert OwnableUnauthorizedAccount(sender);
        }
        _transferOwnership(sender);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import {Ownable2StepUpgradeable} from "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol";
import {ERC1967Utils} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol";

import {IEGETH} from "src/interfaces/IEGETH.sol";
import {Aggregator} from "src/Aggregator.sol";

/**
 * @title egETH
 * @dev ERC20 rebasing token representing the Builda Aggregator LRT tokens balance
 * @notice This contract is used to manage the egETH token
 * Only the aggregator contract can call the mint and burn functions
 */
contract EGETH is Initializable, UUPSUpgradeable, Ownable2StepUpgradeable, IEGETH {
    //--------------------------------------------------------------------------------------
    //-------------------------------------  EVENTS  ---------------------------------------
    //--------------------------------------------------------------------------------------

    /**
     * @notice An executed shares transfer from `sender` to `recipient`.
     *
     * @dev emitted in pair with an ERC20-defined `Transfer` event.
     */
    event TransferShares(address indexed from, address indexed to, uint256 sharesValue);
    event Paused(address indexed account);
    event UnPaused(address indexed account);

    /**
     * @notice An executed `burnShares` request
     *
     * @dev Reports simultaneously burnt shares amount
     * and corresponding egETH amount.
     * The egETH amount is calculated twice: before and after the burning incurred rebase.
     *
     * @param account holder of the burnt shares
     * @param preRebaseTokenAmount amount of egETH the burnt shares corresponded to before the burn
     * @param postRebaseTokenAmount amount of egETH the burnt shares corresponded to after the burn
     * @param sharesAmount amount of burnt shares
     */
    event SharesBurnt(
        address indexed account, uint256 preRebaseTokenAmount, uint256 postRebaseTokenAmount, uint256 sharesAmount
    );

    //--------------------------------------------------------------------------------------
    //-------------------------------------  ERRORS  ---------------------------------------
    //--------------------------------------------------------------------------------------

    error EgETH__OnlyAdmin();
    error EgETH__OnlyAggregator();
    error EgETH__ContractPaused();

    //--------------------------------------------------------------------------------------
    //---------------------------------  STATE-VARIABLES  ----------------------------------
    //--------------------------------------------------------------------------------------
    uint256 internal constant INFINITE_ALLOWANCE = ~uint256(0);

    /**
     * @dev egETH balances are dynamic and are calculated based on the accounts' shares
     * and the total amount of Ether controlled by the protocol. Account shares aren't
     * normalized, so the contract also stores the sum of all shares to calculate
     * each account's token balance which equals to:
     *
     *   shares[account] * _getTotalPooledEther() / _getTotalShares()
     */
    mapping(address => uint256) private shares;

    /**
     * @dev the total amount of shares in existence.
     */
    uint256 private totalShares;

    /**
     * @dev Allowances are nominated in tokens, not token shares.
     */
    mapping(address => mapping(address => uint256)) private allowances;

    /**
     * @dev Aggregator address
     */
    address public aggregator;

    mapping(address => bool) public admins;
    bool public paused;

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }

    //--------------------------------------------------------------------------------------
    //------------------------------------  MODIFIERS  -------------------------------------
    //--------------------------------------------------------------------------------------

    /// @dev Only allows execution if contract is not paused
    modifier notPaused() {
        if (paused) revert EgETH__ContractPaused();
        _;
    }

    /// @dev Only allows execution if caller is an admin
    modifier onlyAdmin() {
        if (!admins[msg.sender]) revert EgETH__OnlyAdmin();
        _;
    }

    /// @dev Only allows execution if caller is the aggregator
    modifier onlyAggregator() {
        if (msg.sender != aggregator) revert EgETH__OnlyAggregator();
        _;
    }

    //--------------------------------------------------------------------------------------
    //-------------------------------------  EXTERNAL  -------------------------------------
    //--------------------------------------------------------------------------------------

    /**
     * @dev proxy initialization
     * @param _aggregator Builda Aggregator address
     * @param _admin Admin multisig address
     */
    function initialize(address _aggregator, address _admin) external initializer {
        __Ownable_init(msg.sender);
        __UUPSUpgradeable_init();
        aggregator = _aggregator;
        admins[_admin] = true;
        totalShares = 0;

        // call init
    }

    /**
     * @notice Creates from `_etherAmount` new shares and assigns them to `_recipient`, increasing the total amount of shares.
     * @dev This doesn't increase the token total supply.
     *
     * NB: The method doesn't check protocol pause relying on the aggregator.
     *
     * Requirements:
     *
     * - `_recipient` cannot be the zero address.
     * - the contract must not be paused.
     */
    function mint(address _recipient, uint256 _etherAmount) external onlyAggregator {
        uint256 sharesToMint = _etherAmount * _getTotalShares() / (_getTotalPooledEther() - _etherAmount);
        _mintShares(_recipient, sharesToMint);
    }

    /**
     * @notice Destroys shares from `_etherAmount` from `_account`'s holdings, decreasing the total amount of shares.
     * @dev This doesn't decrease the token total supply.
     *
     * Requirements:
     *
     * - `_account` cannot be the zero address.
     * - `_account` must hold at least `_sharesAmount` shares.
     * - the contract must not be paused.
     */
    function burn(address _account, uint256 _etherAmount) external onlyAggregator {
        uint256 sharesToBurn = getSharesByPooledEth(_etherAmount);
        _burnShares(_account, sharesToBurn);
    }

    function mintInitialShares(address _sender, uint256 _sharesAmount) external onlyAggregator {
        _mintShares(_sender, _sharesAmount);
        _emitTransferAfterMintingShares(msg.sender, _sharesAmount);
    }

    /// @dev Sets the paused flag
    function setPaused(bool _paused) external onlyAdmin {
        paused = _paused;
        if (_paused) {
            emit Paused(msg.sender);
        } else {
            emit UnPaused(msg.sender);
        }
    }

    /// @dev @dev Returns the name of the token
    function name() external pure returns (string memory) {
        return "Builda egETH";
    }

    /// @dev Returns the symbol of the token
    function symbol() external pure returns (string memory) {
        return "egETH";
    }
    /**
     * @return the number of decimals for getting user representation of a token amount.
     */

    function decimals() external pure returns (uint8) {
        return 18;
    }

    /**
     * @return the amount of tokens in existence.
     *
     * @dev Always equals to `_getTotalPooledEther()` since token amount
     * is pegged to the total amount of Ether controlled by the protocol.
     */
    function totalSupply() external view returns (uint256) {
        return _getTotalPooledEther();
    }

    /**
     * @return the amount of tokens owned by the `_account`.
     *
     * @dev Balances are dynamic and equal the `_account`'s share in the amount of the
     * total Ether controlled by the protocol. See `sharesOf`.
     */
    function balanceOf(address _account) external view returns (uint256) {
        return getPooledEthByShares(_sharesOf(_account));
    }

    /**
     * @notice Moves `_amount` tokens from the caller's account to the `_recipient` account.
     *
     * @return a boolean value indicating whether the operation succeeded.
     * Emits a `Transfer` event.
     * Emits a `TransferShares` event.
     *
     * Requirements:
     *
     * - `_recipient` cannot be the zero address.
     * - the caller must have a balance of at least `_amount`.
     * - the contract must not be paused.
     *
     * @dev The `_amount` argument is the amount of tokens, not shares.
     */
    function transfer(address _recipient, uint256 _amount) external returns (bool) {
        _transfer(msg.sender, _recipient, _amount);
        return true;
    }

    /**
     * @return the remaining number of tokens that `_spender` is allowed to spend
     * on behalf of `_owner` through `transferFrom`. This is zero by default.
     *
     * @dev This value changes when `approve` or `transferFrom` is called.
     */
    function allowance(address _owner, address _spender) external view returns (uint256) {
        return allowances[_owner][_spender];
    }

    /**
     * @notice Sets `_amount` as the allowance of `_spender` over the caller's tokens.
     *
     * @return a boolean value indicating whether the operation succeeded.
     * Emits an `Approval` event.
     *
     * Requirements:
     *
     * - `_spender` cannot be the zero address.
     *
     * @dev The `_amount` argument is the amount of tokens, not shares.
     */
    function approve(address _spender, uint256 _amount) external returns (bool) {
        _approve(msg.sender, _spender, _amount);
        return true;
    }

    /**
     * @notice Moves `_amount` tokens from `_sender` to `_recipient` using the
     * allowance mechanism. `_amount` is then deducted from the caller's
     * allowance.
     *
     * @return a boolean value indicating whether the operation succeeded.
     *
     * Emits a `Transfer` event.
     * Emits a `TransferShares` event.
     * Emits an `Approval` event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `_sender` and `_recipient` cannot be the zero addresses.
     * - `_sender` must have a balance of at least `_amount`.
     * - the caller must have allowance for `_sender`'s tokens of at least `_amount`.
     * - the contract must not be paused.
     *
     * @dev The `_amount` argument is the amount of tokens, not shares.
     */
    function transferFrom(address _sender, address _recipient, uint256 _amount) external returns (bool) {
        _spendAllowance(_sender, msg.sender, _amount);
        _transfer(_sender, _recipient, _amount);
        return true;
    }

    /**
     * @notice Atomically increases the allowance granted to `_spender` by the caller by `_addedValue`.
     *
     * This is an alternative to `approve` that can be used as a mitigation for
     * problems described in:
     * https://github.com/OpenZeppelin/openzeppelin-contracts/blob/b709eae01d1da91902d06ace340df6b324e6f049/contracts/token/ERC20/IERC20.sol#L57
     * Emits an `Approval` event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `_spender` cannot be the the zero address.
     */
    function increaseAllowance(address _spender, uint256 _addedValue) external returns (bool) {
        _approve(msg.sender, _spender, allowances[msg.sender][_spender] + _addedValue);
        return true;
    }

    /**
     * @notice Atomically decreases the allowance granted to `_spender` by the caller by `_subtractedValue`.
     *
     * This is an alternative to `approve` that can be used as a mitigation for
     * problems described in:
     * https://github.com/OpenZeppelin/openzeppelin-contracts/blob/b709eae01d1da91902d06ace340df6b324e6f049/contracts/token/ERC20/IERC20.sol#L57
     * Emits an `Approval` event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `_spender` cannot be the zero address.
     * - `_spender` must have allowance for the caller of at least `_subtractedValue`.
     */
    function decreaseAllowance(address _spender, uint256 _subtractedValue) external returns (bool) {
        uint256 currentAllowance = allowances[msg.sender][_spender];
        require(currentAllowance >= _subtractedValue, "ALLOWANCE_BELOW_ZERO");
        _approve(msg.sender, _spender, currentAllowance - _subtractedValue);
        return true;
    }

    /**
     * @return the total amount of shares in existence.
     *
     * @dev The sum of all accounts' shares can be an arbitrary number, therefore
     * it is necessary to store it in order to calculate each account's relative share.
     */
    function getTotalShares() external view returns (uint256) {
        return _getTotalShares();
    }

    /**
     * @return the amount of shares owned by `_account`.
     */
    function sharesOf(address _account) external view returns (uint256) {
        return _sharesOf(_account);
    }

    /**
     * @notice Moves `_sharesAmount` token shares from the caller's account to the `_recipient` account.
     *
     * @return amount of transferred tokens.
     * Emits a `TransferShares` event.
     * Emits a `Transfer` event.
     *
     * Requirements:
     *
     * - `_recipient` cannot be the zero address.
     * - the caller must have at least `_sharesAmount` shares.
     * - the contract must not be paused.
     *
     * @dev The `_sharesAmount` argument is the amount of shares, not tokens.
     */
    function transferShares(address _recipient, uint256 _sharesAmount) external returns (uint256) {
        _transferShares(msg.sender, _recipient, _sharesAmount);
        uint256 tokensAmount = getPooledEthByShares(_sharesAmount);
        _emitTransferEvents(msg.sender, _recipient, tokensAmount, _sharesAmount);
        return tokensAmount;
    }

    /**
     * @notice Moves `_sharesAmount` token shares from the `_sender` account to the `_recipient` account.
     *
     * @return amount of transferred tokens.
     * Emits a `TransferShares` event.
     * Emits a `Transfer` event.
     *
     * Requirements:
     *
     * - `_sender` and `_recipient` cannot be the zero addresses.
     * - `_sender` must have at least `_sharesAmount` shares.
     * - the caller must have allowance for `_sender`'s tokens of at least `getPooledEthByShares(_sharesAmount)`.
     * - the contract must not be paused.
     *
     * @dev The `_sharesAmount` argument is the amount of shares, not tokens.
     */
    function transferSharesFrom(address _sender, address _recipient, uint256 _sharesAmount)
        external
        returns (uint256)
    {
        uint256 tokensAmount = getPooledEthByShares(_sharesAmount);
        _spendAllowance(_sender, msg.sender, tokensAmount);
        _transferShares(_sender, _recipient, _sharesAmount);
        _emitTransferEvents(_sender, _recipient, tokensAmount, _sharesAmount);
        return tokensAmount;
    }

    /// @dev Returns the current implementation address
    function getImplementation() external view returns (address) {
        return ERC1967Utils.getImplementation();
    }

    //--------------------------------------------------------------------------------------
    //-------------------------------------  PUBLIC  ---------------------------------------
    //--------------------------------------------------------------------------------------

    /**
     * @return the amount of shares that corresponds to `_ethAmount` protocol-controlled Ether.
     */
    function getSharesByPooledEth(uint256 _ethAmount) public view returns (uint256) {
        return _ethAmount * _getTotalShares() / _getTotalPooledEther();
    }

    /**
     * @return the amount of Ether that corresponds to `_sharesAmount` token shares.
     */
    function getPooledEthByShares(uint256 _sharesAmount) public view returns (uint256) {
        return _sharesAmount * _getTotalPooledEther() / _getTotalShares();
    }

    //--------------------------------------------------------------------------------------
    //-------------------------------------  INTERNAL  -------------------------------------
    //--------------------------------------------------------------------------------------

    /// @dev Allows the owner to upgrade the contract
    function _authorizeUpgrade(address newImplementation) internal override onlyOwner {}

    //--------------------------------------------------------------------------------------
    //-------------------------------------  PRIVATE  --------------------------------------
    //--------------------------------------------------------------------------------------

    /**
     * @return the total amount (in wei) of Ether controlled by the protocol.
     * @dev This is used for calculating tokens from shares and vice versa.
     * @dev This function is required to be implemented in a derived contract.
     */
    function _getTotalPooledEther() private view returns (uint256) {
        return Aggregator(payable(aggregator)).totalPooledEther();
    }

    /**
     * @notice Moves `_amount` tokens from `_sender` to `_recipient`.
     * Emits a `Transfer` event.
     * Emits a `TransferShares` event.
     */
    function _transfer(address _sender, address _recipient, uint256 _amount) private notPaused {
        uint256 _sharesToTransfer = getSharesByPooledEth(_amount);
        _transferShares(_sender, _recipient, _sharesToTransfer);
        _emitTransferEvents(_sender, _recipient, _amount, _sharesToTransfer);
    }

    /**
     * @notice Sets `_amount` as the allowance of `_spender` over the `_owner` s tokens.
     *
     * Emits an `Approval` event.
     *
     * NB: the method can be invoked even if the protocol paused.
     *
     * Requirements:
     *
     * - `_owner` cannot be the zero address.
     * - `_spender` cannot be the zero address.
     */
    function _approve(address _owner, address _spender, uint256 _amount) private {
        require(_owner != address(0), "APPROVE_FROM_ZERO_ADDR");
        require(_spender != address(0), "APPROVE_TO_ZERO_ADDR");

        allowances[_owner][_spender] = _amount;
        emit Approval(_owner, _spender, _amount);
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(address _owner, address _spender, uint256 _amount) private {
        uint256 currentAllowance = allowances[_owner][_spender];
        if (currentAllowance != INFINITE_ALLOWANCE) {
            require(currentAllowance >= _amount, "ALLOWANCE_EXCEEDED");
            _approve(_owner, _spender, currentAllowance - _amount);
        }
    }

    /**
     * @return the total amount of shares in existence.
     */
    function _getTotalShares() private view returns (uint256) {
        return totalShares;
    }

    /**
     * @return the amount of shares owned by `_account`.
     */
    function _sharesOf(address _account) private view returns (uint256) {
        return shares[_account];
    }

    /**
     * @notice Moves `_sharesAmount` shares from `_sender` to `_recipient`.
     *
     * Requirements:
     *
     * - `_sender` cannot be the zero address.
     * - `_recipient` cannot be the zero address or the `stETH` token contract itself
     * - `_sender` must hold at least `_sharesAmount` shares.
     * - the contract must not be paused.
     */
    function _transferShares(address _sender, address _recipient, uint256 _sharesAmount) private notPaused {
        require(_sender != address(0), "TRANSFER_FROM_ZERO_ADDR");
        require(_recipient != address(0), "TRANSFER_TO_ZERO_ADDR");
        require(_recipient != address(this), "TRANSFER_TO_EGETH_CONTRACT");

        uint256 currentSenderShares = shares[_sender];
        require(_sharesAmount <= currentSenderShares, "BALANCE_EXCEEDED");
        shares[_sender] = currentSenderShares - _sharesAmount;
        shares[_recipient] = shares[_recipient] + _sharesAmount;
    }

    /**
     * @notice Creates `_sharesAmount` shares and assigns them to `_recipient`, increasing the total amount of shares.
     * @dev This doesn't increase the token total supply.
     *
     * NB: The method doesn't check protocol pause relying on the aggregator.
     *
     * Requirements:
     *
     * - `_recipient` cannot be the zero address.
     * - the contract must not be paused.
     */
    function _mintShares(address _recipient, uint256 _sharesAmount) private returns (uint256 newTotalShares) {
        require(_recipient != address(0), "MINT_TO_ZERO_ADDR");

        newTotalShares = _getTotalShares() + _sharesAmount;
        totalShares = newTotalShares;

        shares[_recipient] = shares[_recipient] + _sharesAmount;

        // Notice: we're not emitting a Transfer event from the zero address here since shares mint
        // works by taking the amount of tokens corresponding to the minted shares from all other
        // token holders, proportionally to their share. The total supply of the token doesn't change
        // as the result. This is equivalent to performing a send from each other token holder's
        // address to `address`, but we cannot reflect this as it would require sending an unbounded
        // number of events.
    }

    /**
     * @notice Destroys `_sharesAmount` shares from `_account`'s holdings, decreasing the total amount of shares.
     * @dev This doesn't decrease the token total supply.
     *
     * Requirements:
     *
     * - `_account` cannot be the zero address.
     * - `_account` must hold at least `_sharesAmount` shares.
     * - the contract must not be paused.
     */
    function _burnShares(address _account, uint256 _sharesAmount) private returns (uint256 newTotalShares) {
        require(_account != address(0), "BURN_FROM_ZERO_ADDR");

        uint256 accountShares = shares[_account];

        require(_sharesAmount <= accountShares, "BALANCE_EXCEEDED");

        uint256 preRebaseTokenAmount = getPooledEthByShares(_sharesAmount);

        newTotalShares = _getTotalShares() - _sharesAmount;
        totalShares = newTotalShares;

        shares[_account] = accountShares - _sharesAmount;

        uint256 postRebaseTokenAmount = getPooledEthByShares(_sharesAmount);

        emit SharesBurnt(_account, preRebaseTokenAmount, postRebaseTokenAmount, _sharesAmount);

        // Notice: we're not emitting a Transfer event to the zero address here since shares burn
        // works by redistributing the amount of tokens corresponding to the burned shares between
        // all other token holders. The total supply of the token doesn't change as the result.
        // This is equivalent to performing a send from `address` to each other token holder address,
        // but we cannot reflect this as it would require sending an unbounded number of events.

        // We're emitting `SharesBurnt` event to provide an explicit rebase log record nonetheless.
    }

    /**
     * @dev Emits {Transfer} and {TransferShares} events
     */
    function _emitTransferEvents(address _from, address _to, uint256 _tokenAmount, uint256 _sharesAmount) private {
        emit Transfer(_from, _to, _tokenAmount);
        emit TransferShares(_from, _to, _sharesAmount);
    }

    /**
     * @dev Emits {Transfer} and {TransferShares} events where `from` is 0 address. Indicates mint events.
     */
    function _emitTransferAfterMintingShares(address _to, uint256 _sharesAmount) private {
        _emitTransferEvents(address(0), _to, getPooledEthByShares(_sharesAmount), _sharesAmount);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

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

struct IAssetInfo {
    IERC20 asset;
    uint256 targetWeight; // Target weight in percentage (e.g., 450 for 45%)
}

struct IConfigAggregator {
    address admin;
    address treasury;
    address egETH;
    address ethTokenAddress;
}

struct IAssets {
    IAssetInfo etherFieEth;
    IAssetInfo renzoEzEth;
    IAssetInfo kelpRsETH;
}

interface IAggregator {
    function depositETH() external payable;
    function depositLRT(address asset, uint256 amount, uint256 minEgETHAmount) external;
    function withdrawLRT(address assetToWithdraw, uint256 bldShares) external payable;
    function setTargetWeights(uint256 etherFiWeight, uint256 renzoWeight, uint256 kelpWeight) external;
    function setPaused(bool _paused) external;
    function getImplementation() external view returns (address);
    function previewDepositETH(uint256 amount) external view returns (uint256);
    function previewDepositLRT(address asset, uint256 amount) external view returns (uint256);
    function previewWithdrawLRT(address asset, uint256 shares) external view returns (uint256);
    function totalPooledEther() external view returns (uint256);
    function targetWeights() external view returns (uint256, uint256, uint256);
    function maxLRTWithdrawInEgETH(address _asset) external view returns (uint256);
    function balanceOf(address _account) external view returns (uint256);
    function totalAssets() external view returns (uint256, uint256, uint256);
    function convertEthToEgETH(uint256 _amount) external view returns (uint256);
    function convertEthToLRTShares(address asset, uint256 ethAmount) external view returns (uint256);
    function convertLRTSharesToEth(address asset, uint256 shares) external view returns (uint256);
    function convertLRTSharesToEgETH(address asset, uint256 shares) external view returns (uint256);
    function convertEgETHToLRTShares(address asset, uint256 bldShares) external view returns (uint256);
    function currentWeights() external view returns (uint256, uint256, uint256);
}

// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.24;

import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import {UUPSUpgradeable} from "@openzeppelin/contracts-upgradeable/proxy/utils/UUPSUpgradeable.sol";
import {Ownable2StepUpgradeable} from "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol";
import {ERC1967Utils} from "@openzeppelin/contracts/proxy/ERC1967/ERC1967Utils.sol";

import {ILiquidityPool} from "src/interfaces/etherFi/ILiquidityPool.sol";
import {IRestakeManager} from "src/interfaces/renzo/IRestakeManager.sol";
import {IRenzoOracle} from "src/interfaces/renzo/IRenzoOracle.sol";
import {IKelpLRTDepositPool} from "src/interfaces/kelp/IKelpLRTDepositPool.sol";
import {IKLRTOracle} from "src/interfaces/kelp/IKLRTOracle.sol";

import {ILRTProtocolsManager} from "src/interfaces/ILRTProtocolsManager.sol";

/**
 * @title LRTProtocolsManager
 * @dev Manages interactions between the different LRT protocols
 * @notice This contract is used to manage the interactions between the different LRT protocols
 * Currently it supports EtherFi, Renzo and Kelp
 * Only the aggregator contract can call the functions in this contract
 */
contract LRTProtocolsManager is Initializable, UUPSUpgradeable, Ownable2StepUpgradeable, ILRTProtocolsManager {
    //--------------------------------------------------------------------------------------
    //--------------------------------------  ERRORS  --------------------------------------
    //--------------------------------------------------------------------------------------
    error OnlyAggregatorContract();

    //--------------------------------------------------------------------------------------
    //---------------------------------  STATE-VARIABLES  ----------------------------------
    //--------------------------------------------------------------------------------------
    uint256 private constant SCALE_FACTOR = 1e18;

    address public aggregator;

    // Protocols contracts
    IRestakeManager public renzoDeposit;
    ILiquidityPool public etherFiDeposit;
    IKelpLRTDepositPool public kelpDeposit;

    // Protocols oracles
    IKLRTOracle public kelpOracle;
    IRenzoOracle public renzoOracle;

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor() {
        _disableInitializers();
    }

    //--------------------------------------------------------------------------------------
    //-------------------------------------  MODIFIERS  ------------------------------------
    //--------------------------------------------------------------------------------------

    /// @dev Only allows execution if caller is the aggregator
    modifier onlyAggregator() {
        if (msg.sender != aggregator) revert OnlyAggregatorContract();
        _;
    }

    //--------------------------------------------------------------------------------------
    //-------------------------------------  EXTERNAL  -------------------------------------
    //--------------------------------------------------------------------------------------

    /**
     * @dev proxy initialization
     * @param _aggregator Aggregator contract address
     * @param _etherFiDeposit EtherFi deposit contract address
     * @param _renzoDeposit Renzo deposit contract address
     * @param _kelpDeposit Kelp deposit contract address
     * @param _kelpOracle Kelp oracle contract address
     * @param _renzoOracle Renzo oracle contract address
     */
    function initialize(
        address _aggregator,
        address _etherFiDeposit,
        address _renzoDeposit,
        address _kelpDeposit,
        address _kelpOracle,
        address _renzoOracle
    ) external initializer {
        __Ownable_init(msg.sender);
        __UUPSUpgradeable_init();

        renzoDeposit = IRestakeManager(_renzoDeposit);
        etherFiDeposit = ILiquidityPool(_etherFiDeposit);
        kelpDeposit = IKelpLRTDepositPool(_kelpDeposit);

        kelpOracle = IKLRTOracle(_kelpOracle);
        renzoOracle = IRenzoOracle(_renzoOracle);
        aggregator = _aggregator;
    }

    /**
     * @dev Get the total TVL of all the protocols in ETH
     * @param _etherFiShares EtherFi shares
     * @param _renzoShares Renzo shares
     * @param _kelpShares Kelp shares
     * @return total TVL in ETH
     */
    function totalEthAmount(
        uint256 _etherFiShares,
        uint256 _kelpShares,
        uint256 _renzoShares,
        uint256 _ezETHTotalSupply
    ) external view onlyAggregator returns (uint256) {
        return etherFiEthAndAmount(_etherFiShares) + renzoEthAmount(_renzoShares, _ezETHTotalSupply)
            + kelpEthAmount(_kelpShares);
    }

    /**
     * @dev Get the total TVL of all the protocols in ETH
     * @param _etherFiShares ezETH shares
     * @param _kelpShares rsETH shares
     * @param _renzoShares ezETH shares
     * @param _ezETHTotalSupply ezETH total supply
     * @return eETH ETH TVL
     * @return ezETH ETH TVL
     * @return rsETH ETH TVL
     */
    function totalProtocolsEther(
        uint256 _etherFiShares,
        uint256 _kelpShares,
        uint256 _renzoShares,
        uint256 _ezETHTotalSupply
    ) external view onlyAggregator returns (uint256, uint256, uint256) {
        return (
            etherFiEthAndAmount(_etherFiShares),
            renzoEthAmount(_renzoShares, _ezETHTotalSupply),
            kelpEthAmount(_kelpShares)
        );
    }

    /**
     * @dev ETH to Renzo shares (ezETH) converter
     * @param _ethAmount ETH amount
     * @param _totalSupply Total supply of ezETH
     * @return ezETH shares
     */
    function ethToRenzoEth(uint256 _ethAmount, uint256 _totalSupply) external view onlyAggregator returns (uint256) {
        (,, uint256 ethTVL) = renzoDeposit.calculateTVLs();
        uint256 shares = (_ethAmount * _totalSupply) / ethTVL;
        return shares;
    }

    /**
     * @dev ETH to Kelp shares (rsETH) converter
     * @param _ethAmount ETH amount
     * @return rsETH shares
     */
    function ethToKelpEth(uint256 _ethAmount) external view onlyAggregator returns (uint256) {
        uint256 kelEthPrice = kelpOracle.rsETHPrice();
        return (_ethAmount * SCALE_FACTOR) / kelEthPrice;
    }

    /**
     * @dev Update Kelp shares price in ETH
     */
    function updateRsETHPrice() external onlyAggregator {
        kelpOracle.updateRSETHPrice();
    }

    // @dev Get the current implementation address
    function getImplementation() external view returns (address) {
        return ERC1967Utils.getImplementation();
    }

    //--------------------------------------------------------------------------------------
    //-------------------------------------  PUBLIC  ---------------------------------------
    //--------------------------------------------------------------------------------------

    /**
     * @dev ETH to EtherFi shares (eETH) converter
     * @param _ethAmount ETH amount
     * @return eETH shares
     */
    function etherFiEthAndAmount(uint256 _ethAmount) public view onlyAggregator returns (uint256) {
        uint256 shares = etherFiDeposit.sharesForAmount(_ethAmount);
        uint256 eETHAmount = etherFiDeposit.amountForShare(shares);
        return eETHAmount;
    }

    /**
     * @dev Get ETH amount of Renzo shares (ezETH)
     * @param shares Renzo shares
     * @param _totalSupply Total supply of ezETH
     * @return total TVL in ETH
     */
    function renzoEthAmount(uint256 shares, uint256 _totalSupply) public view onlyAggregator returns (uint256) {
        (,, uint256 ethTVL) = renzoDeposit.calculateTVLs();
        uint256 ethAmount = (ethTVL * shares) / _totalSupply;
        return ethAmount;
    }

    /**
     * @dev Get ETH amount of Kelp shares (rsETH)
     * @param shares Kelp shares
     * @return total TVL in ETH
     */
    function kelpEthAmount(uint256 shares) public view onlyAggregator returns (uint256) {
        uint256 ethAmount = (kelpOracle.rsETHPrice() * shares) / SCALE_FACTOR;
        return ethAmount;
    }

    //--------------------------------------------------------------------------------------
    //-------------------------------------  INTERNAL  -------------------------------------
    //--------------------------------------------------------------------------------------

    /// @dev Allows the owner to upgrade the contract
    function _authorizeUpgrade(address newImplementation) internal override onlyOwner {}
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.24;

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

interface IKelpLRTDepositPool {
    function initialize(IRSETH _rsETH) external;
    function paused() external view returns (bool);
    function depositETH(uint256 minRSETHAmountExpected, string calldata referralId) external payable;
    function getRsETHAmountToMint(address asset, uint256 amount) external view returns (uint256);
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.24;

import {IERC20} from "@openzeppelin/contracts/interfaces/IERC20.sol";

interface IRSETH is IERC20 {
    function mint(address account, uint256 amount) external;

    function burnFrom(address account, uint256 amount) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC-20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC-20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC-721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in ERC-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC-1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1363.sol)

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC165} from "./IERC165.sol";

/**
 * @title IERC1363
 * @dev Interface of the ERC-1363 standard as defined in the https://eips.ethereum.org/EIPS/eip-1363[ERC-1363].
 *
 * Defines an extension interface for ERC-20 tokens that supports executing code on a recipient contract
 * after `transfer` or `transferFrom`, or code on a spender contract after `approve`, in a single transaction.
 */
interface IERC1363 is IERC20, IERC165 {
    /*
     * Note: the ERC-165 identifier for this interface is 0xb0202a11.
     * 0xb0202a11 ===
     *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
     *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
     *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
     *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
     */

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
     * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
     * @param from The address which you want to send tokens from.
     * @param to The address which you want to transfer to.
     * @param value The amount of tokens to be transferred.
     * @param data Additional data with no specified format, sent in call to `to`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value) external returns (bool);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
     * @param spender The address which will spend the funds.
     * @param value The amount of tokens to be spent.
     * @param data Additional data with no specified format, sent in call to `spender`.
     * @return A boolean value indicating whether the operation succeeded unless throwing.
     */
    function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

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

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @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://consensys.net/diligence/blog/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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert Errors.InsufficientBalance(address(this).balance, amount);
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert Errors.FailedCall();
        }
    }

    /**
     * @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 or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {Errors.FailedCall} error.
     *
     * 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.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @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`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert Errors.InsufficientBalance(address(this).balance, value);
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {Errors.FailedCall}) in case
     * of an unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {Errors.FailedCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {Errors.FailedCall}.
     */
    function _revert(bytes memory returndata) 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 Errors.FailedCall();
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol)

pragma solidity ^0.8.20;

/**
 * @dev This is the interface that {BeaconProxy} expects of its beacon.
 */
interface IBeacon {
    /**
     * @dev Must return an address that can be used as a delegate call target.
     *
     * {UpgradeableBeacon} will check that this address is a contract.
     */
    function implementation() external view returns (address);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1967.sol)

pragma solidity ^0.8.20;

/**
 * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
 */
interface IERC1967 {
    /**
     * @dev Emitted when the implementation is upgraded.
     */
    event Upgraded(address indexed implementation);

    /**
     * @dev Emitted when the admin account has changed.
     */
    event AdminChanged(address previousAdmin, address newAdmin);

    /**
     * @dev Emitted when the beacon is changed.
     */
    event BeaconUpgraded(address indexed beacon);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/StorageSlot.sol)
// This file was procedurally generated from scripts/generate/templates/StorageSlot.js.

pragma solidity ^0.8.24;

/**
 * @dev Library for reading and writing primitive types to specific storage slots.
 *
 * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
 * This library helps with reading and writing to such slots without the need for inline assembly.
 *
 * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
 *
 * Example usage to set ERC-1967 implementation slot:
 * ```solidity
 * contract ERC1967 {
 *     // Define the slot. Alternatively, use the SlotDerivation library to derive the slot.
 *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
 *
 *     function _getImplementation() internal view returns (address) {
 *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
 *     }
 *
 *     function _setImplementation(address newImplementation) internal {
 *         require(newImplementation.code.length > 0);
 *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
 *     }
 * }
 * ```
 *
 * Since version 5.1, this library also support writing and reading value types to and from transient storage.
 *
 *  * Example using transient storage:
 * ```solidity
 * contract Lock {
 *     // Define the slot. Alternatively, use the SlotDerivation library to derive the slot.
 *     bytes32 internal constant _LOCK_SLOT = 0xf4678858b2b588224636b8522b729e7722d32fc491da849ed75b3fdf3c84f542;
 *
 *     modifier locked() {
 *         require(!_LOCK_SLOT.asBoolean().tload());
 *
 *         _LOCK_SLOT.asBoolean().tstore(true);
 *         _;
 *         _LOCK_SLOT.asBoolean().tstore(false);
 *     }
 * }
 * ```
 *
 * TIP: Consider using this library along with {SlotDerivation}.
 */
library StorageSlot {
    struct AddressSlot {
        address value;
    }

    struct BooleanSlot {
        bool value;
    }

    struct Bytes32Slot {
        bytes32 value;
    }

    struct Uint256Slot {
        uint256 value;
    }

    struct Int256Slot {
        int256 value;
    }

    struct StringSlot {
        string value;
    }

    struct BytesSlot {
        bytes value;
    }

    /**
     * @dev Returns an `AddressSlot` with member `value` located at `slot`.
     */
    function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BooleanSlot` with member `value` located at `slot`.
     */
    function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Bytes32Slot` with member `value` located at `slot`.
     */
    function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Uint256Slot` with member `value` located at `slot`.
     */
    function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `Int256Slot` with member `value` located at `slot`.
     */
    function getInt256Slot(bytes32 slot) internal pure returns (Int256Slot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` with member `value` located at `slot`.
     */
    function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
     */
    function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` with member `value` located at `slot`.
     */
    function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := slot
        }
    }

    /**
     * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
     */
    function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
        /// @solidity memory-safe-assembly
        assembly {
            r.slot := store.slot
        }
    }

    /**
     * @dev UDVT that represent a slot holding a address.
     */
    type AddressSlotType is bytes32;

    /**
     * @dev Cast an arbitrary slot to a AddressSlotType.
     */
    function asAddress(bytes32 slot) internal pure returns (AddressSlotType) {
        return AddressSlotType.wrap(slot);
    }

    /**
     * @dev UDVT that represent a slot holding a bool.
     */
    type BooleanSlotType is bytes32;

    /**
     * @dev Cast an arbitrary slot to a BooleanSlotType.
     */
    function asBoolean(bytes32 slot) internal pure returns (BooleanSlotType) {
        return BooleanSlotType.wrap(slot);
    }

    /**
     * @dev UDVT that represent a slot holding a bytes32.
     */
    type Bytes32SlotType is bytes32;

    /**
     * @dev Cast an arbitrary slot to a Bytes32SlotType.
     */
    function asBytes32(bytes32 slot) internal pure returns (Bytes32SlotType) {
        return Bytes32SlotType.wrap(slot);
    }

    /**
     * @dev UDVT that represent a slot holding a uint256.
     */
    type Uint256SlotType is bytes32;

    /**
     * @dev Cast an arbitrary slot to a Uint256SlotType.
     */
    function asUint256(bytes32 slot) internal pure returns (Uint256SlotType) {
        return Uint256SlotType.wrap(slot);
    }

    /**
     * @dev UDVT that represent a slot holding a int256.
     */
    type Int256SlotType is bytes32;

    /**
     * @dev Cast an arbitrary slot to a Int256SlotType.
     */
    function asInt256(bytes32 slot) internal pure returns (Int256SlotType) {
        return Int256SlotType.wrap(slot);
    }

    /**
     * @dev Load the value held at location `slot` in transient storage.
     */
    function tload(AddressSlotType slot) internal view returns (address value) {
        /// @solidity memory-safe-assembly
        assembly {
            value := tload(slot)
        }
    }

    /**
     * @dev Store `value` at location `slot` in transient storage.
     */
    function tstore(AddressSlotType slot, address value) internal {
        /// @solidity memory-safe-assembly
        assembly {
            tstore(slot, value)
        }
    }

    /**
     * @dev Load the value held at location `slot` in transient storage.
     */
    function tload(BooleanSlotType slot) internal view returns (bool value) {
        /// @solidity memory-safe-assembly
        assembly {
            value := tload(slot)
        }
    }

    /**
     * @dev Store `value` at location `slot` in transient storage.
     */
    function tstore(BooleanSlotType slot, bool value) internal {
        /// @solidity memory-safe-assembly
        assembly {
            tstore(slot, value)
        }
    }

    /**
     * @dev Load the value held at location `slot` in transient storage.
     */
    function tload(Bytes32SlotType slot) internal view returns (bytes32 value) {
        /// @solidity memory-safe-assembly
        assembly {
            value := tload(slot)
        }
    }

    /**
     * @dev Store `value` at location `slot` in transient storage.
     */
    function tstore(Bytes32SlotType slot, bytes32 value) internal {
        /// @solidity memory-safe-assembly
        assembly {
            tstore(slot, value)
        }
    }

    /**
     * @dev Load the value held at location `slot` in transient storage.
     */
    function tload(Uint256SlotType slot) internal view returns (uint256 value) {
        /// @solidity memory-safe-assembly
        assembly {
            value := tload(slot)
        }
    }

    /**
     * @dev Store `value` at location `slot` in transient storage.
     */
    function tstore(Uint256SlotType slot, uint256 value) internal {
        /// @solidity memory-safe-assembly
        assembly {
            tstore(slot, value)
        }
    }

    /**
     * @dev Load the value held at location `slot` in transient storage.
     */
    function tload(Int256SlotType slot) internal view returns (int256 value) {
        /// @solidity memory-safe-assembly
        assembly {
            value := tload(slot)
        }
    }

    /**
     * @dev Store `value` at location `slot` in transient storage.
     */
    function tstore(Int256SlotType slot, int256 value) internal {
        /// @solidity memory-safe-assembly
        assembly {
            tstore(slot, value)
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC1822.sol)

pragma solidity ^0.8.20;

/**
 * @dev ERC-1822: Universal Upgradeable Proxy Standard (UUPS) documents a method for upgradeability through a simplified
 * proxy whose upgrades are fully controlled by the current implementation.
 */
interface IERC1822Proxiable {
    /**
     * @dev Returns the storage slot that the proxiable contract assumes is being used to store the implementation
     * address.
     *
     * IMPORTANT: A proxy pointing at a proxiable contract should not be considered proxiable itself, because this risks
     * bricking a proxy that upgrades to it, by delegating to itself until out of gas. Thus it is critical that this
     * function revert if invoked through a proxy.
     */
    function proxiableUUID() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract OwnableUpgradeable is Initializable, ContextUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Ownable
    struct OwnableStorage {
        address _owner;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant OwnableStorageLocation = 0x9016d09d72d40fdae2fd8ceac6b6234c7706214fd39c1cd1e609a0528c199300;

    function _getOwnableStorage() private pure returns (OwnableStorage storage $) {
        assembly {
            $.slot := OwnableStorageLocation
        }
    }

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    function __Ownable_init(address initialOwner) internal onlyInitializing {
        __Ownable_init_unchained(initialOwner);
    }

    function __Ownable_init_unchained(address initialOwner) internal onlyInitializing {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

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

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

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

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

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

interface IEGETH is IERC20, IERC20Metadata {
    function mint(address _recipient, uint256 _sharesAmount) external;
    function burn(address _account, uint256 _sharesAmount) external;
    function approve(address _spender, uint256 _amount) external returns (bool);
    function allowance(address _owner, address _spender) external view returns (uint256);
    function increaseAllowance(address _spender, uint256 _addedValue) external returns (bool);
    function decreaseAllowance(address _spender, uint256 _subtractedValue) external returns (bool);
    function transfer(address _recipient, uint256 _amount) external returns (bool);
    function transferFrom(address _sender, address _recipient, uint256 _amount) external returns (bool);
    function balanceOf(address _account) external view returns (uint256);
    function sharesOf(address _account) external view returns (uint256);
    function totalSupply() external view returns (uint256);
    function getTotalShares() external view returns (uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

interface ILiquidityPool {
    struct PermitInput {
        uint256 value;
        uint256 deadline;
        uint8 v;
        bytes32 r;
        bytes32 s;
    }

    function totalValueOutOfLp() external view returns (uint256);

    function totalValueInLp() external view returns (uint256);

    function paused() external view returns (bool);

    function getTotalEtherClaimOf(address _user) external view returns (uint256);

    function getTotalPooledEther() external view returns (uint256);

    function sharesForAmount(uint256 _amount) external view returns (uint256);

    function sharesForWithdrawalAmount(uint256 _amount) external view returns (uint256);

    function amountForShare(uint256 _share) external view returns (uint256);

    function deposit() external payable returns (uint256);

    function deposit(address _referral) external payable returns (uint256);

    function setTokenAddress(address _eETH) external;

    function updateAdmin(address _newAdmin, bool _isAdmin) external;
}

//SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

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

import "./IDepositQueue.sol";

interface IRestakeManager {
    function depositQueue() external view returns (IDepositQueue);

    function paused() external view returns (bool);

    function depositETH() external payable;

    function calculateTVLs() external view returns (uint256, uint256, uint256);
}

// SPDX-License-Identifier: BUSL-1.1
pragma solidity 0.8.24;

/// @dev This contract will be responsible for looking up values via Chainlink
/// Data retrieved will be verified for liveness via a max age on the oracle lookup.
/// All tokens should be denominated in the same base currency and contain the same decimals on the price lookup.
interface IRenzoOracle {
    /// @dev Given amount of current protocol value, new value being added, and supply of ezETH, determine amount to mint
    /// Values should be denominated in the same underlying currency with the same decimal precision
    function calculateMintAmount(uint256 _currentValueInProtocol, uint256 _newValueAdded, uint256 _existingEzETHSupply)
        external
        pure
        returns (uint256);

    // Given the amount of ezETH to burn, the supply of ezETH, and the total value in the protocol, determine amount of value to return to user
    function calculateRedeemAmount(
        uint256 _ezETHBeingBurned,
        uint256 _existingEzETHSupply,
        uint256 _currentValueInProtocol
    ) external pure returns (uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

interface IKLRTOracle {
    function rsETHPrice() external pure returns (uint256);
    function updateRSETHPrice() external;
}

// SPDX-License-Identifier: GPL-3.0
pragma solidity 0.8.24;

interface ILRTProtocolsManager {
    function totalEthAmount(
        uint256 _etherFiShares,
        uint256 _kelpShares,
        uint256 _renzoShares,
        uint256 _ezETHTotalSupply
    ) external view returns (uint256);
    function totalProtocolsEther(
        uint256 _etherFiShares,
        uint256 _kelpShares,
        uint256 _renzoShares,
        uint256 _ezETHTotalSupply
    ) external view returns (uint256, uint256, uint256);

    function etherFiEthAndAmount(uint256 _ethAmount) external view returns (uint256);

    function ethToRenzoEth(uint256 _ethAmount, uint256 _totalSupply) external view returns (uint256);

    function ethToKelpEth(uint256 _ethAmount) external view returns (uint256);

    function getImplementation() external view returns (address);

    function renzoEthAmount(uint256 shares, uint256 _totalSupply) external view returns (uint256);

    function kelpEthAmount(uint256 shares) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol)

pragma solidity ^0.8.20;

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC165.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../utils/introspection/IERC165.sol";

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.20;

/**
 * @dev Collection of common custom errors used in multiple contracts
 *
 * IMPORTANT: Backwards compatibility is not guaranteed in future versions of the library.
 * It is recommended to avoid relying on the error API for critical functionality.
 */
library Errors {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error InsufficientBalance(uint256 balance, uint256 needed);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedCall();

    /**
     * @dev The deployment failed.
     */
    error FailedDeployment();
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

//SPDX-License-Identifier: MIT
pragma solidity 0.8.24;

interface IDepositQueue {
    function depositETHFromProtocol() external payable;

    function totalEarned(address tokenAddress) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[ERC].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

{
  "remappings": [
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "@openzeppelin/contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/contracts/",
    "@openzeppelin/foundry-upgrades/=lib/openzeppelin-foundry-upgrades/src/",
    "@aave/protocol-v2/=lib/protocol-v2/",
    "@aave/core-v3/=lib/aave-v3-core/",
    "@uniswap/v3-core/=lib/v3-core/",
    "@uniswap/v3-periphery/=lib/v3-periphery/",
    "halmos-cheatcodes/=lib/halmos-cheatcodes/src/",
    "aave-v3-core/=lib/aave-v3-core/",
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts-upgradeable/lib/erc4626-tests/",
    "forge-std/=lib/forge-std/src/",
    "openzeppelin-contracts-upgradeable/=lib/openzeppelin-contracts-upgradeable/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "openzeppelin-foundry-upgrades/=lib/openzeppelin-foundry-upgrades/src/",
    "solidity-stringutils/=lib/openzeppelin-foundry-upgrades/lib/solidity-stringutils/",
    "v3-core/=lib/v3-core/",
    "v3-periphery/=lib/v3-periphery/contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "cancun",
  "viaIR": false,
  "debug": {
    "revertStrings": "strip"
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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