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// SPDX-License-Identifier: UNLICENSED
pragma solidity 0.8.17;
import "../interfaces/RocketStorage.sol";
import "../interfaces/RocketDepositPool.sol";
import "../interfaces/RocketTokenRETH.sol";
import "../interfaces/RocketDAOProtocolSettingsDepositInterface.sol";
import "../interfaces/RocketVault.sol";
import "../interfaces/ILido.sol";
import "@openzeppelin/contracts/access/Ownable2Step.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/security/Pausable.sol";

/// @title A staking aggregation contract for RocketPool and Lido
/// @author Jack Clancy - Consensys
contract StakingAggregator is Ownable2Step, ReentrancyGuard, Pausable {
    RocketStorageInterface immutable rocketStorage;
    LidoInterface public immutable lidoProxyAddress;
    address public immutable lidoReferralAddress;
    uint256 public fee; // fee in 1/10th of bps
    uint256 public constant MAX_FEE = 2000; // maxFee in 1/10th of bps - 2% or 200bps
    uint256 public constant FEE_BASE = 100000;

    constructor(
        address _owner,
        address _lidoReferralAddress,
        RocketStorageInterface _rocketStorageAddress,
        LidoInterface _lidoProxyAddress,
        uint256 _fee
    ) {
        _transferOwnership(_owner);
        lidoReferralAddress = _lidoReferralAddress;
        rocketStorage = _rocketStorageAddress;
        lidoProxyAddress = _lidoProxyAddress;
        fee = _fee;
    }

    error InsufficientAmount();
    error TransferFailed(address recipient, uint256 amount);
    error NoTokensMinted(address recipient);
    error FeeTooHigh(uint256 fee);
    error ContractNotFound();

    event FeeUpdated(uint256 _newFee);
    event FeesWithdrawn(address recipient, uint256 _amountWithdrawn);

    /// @notice Deposits ETH to Lido and forwards minted stETH to caller
    function depositToLido() external payable nonReentrant whenNotPaused {
        // Check deposit amount
        if (msg.value == 0) revert InsufficientAmount();
        // Subtract fee
        uint256 depositAmount = msg.value - ((msg.value * fee) / FEE_BASE);
        // Forward deposit to Lido & get amount of stETH
        uint256 sharesMinted = lidoProxyAddress.submit{value: depositAmount}(
            lidoReferralAddress
        );
        if (sharesMinted <= 0) revert NoTokensMinted(msg.sender);
        // Forward minted stETH back to user
        if (lidoProxyAddress.transferShares(msg.sender, sharesMinted) == 0)
            revert TransferFailed(msg.sender, sharesMinted);
    }

    /// @notice Deposits ETH to RocketPool and forwards minted rETH to caller
    function depositToRP() external payable nonReentrant whenNotPaused {
        // Check deposit amount
        if (msg.value == 0) revert InsufficientAmount();
        // Load contracts
        address rocketDepositPoolAddress = getContractAddress(
            "rocketDepositPool"
        );
        RocketDepositPoolInterface rocketDepositPool = RocketDepositPoolInterface(
                rocketDepositPoolAddress
            );
        address rocketTokenRETHAddress = getContractAddress("rocketTokenRETH");
        RocketTokenRETHInterface rocketTokenRETH = RocketTokenRETHInterface(
            rocketTokenRETHAddress
        );
        // Subtract fee
        uint256 depositAmount = msg.value - ((msg.value * fee) / FEE_BASE);
        // Forward deposit to RP & get amount of rETH minted
        uint256 rethBalance1 = rocketTokenRETH.balanceOf(address(this));
        rocketDepositPool.deposit{value: depositAmount}();
        uint256 rethBalance2 = rocketTokenRETH.balanceOf(address(this));
        if (rethBalance2 <= rethBalance1) revert NoTokensMinted(msg.sender);
        uint256 rethMinted = rethBalance2 - rethBalance1;
        // Forward minted rETH back to user
        if (!rocketTokenRETH.transfer(msg.sender, rethMinted))
            revert TransferFailed(msg.sender, rethMinted);
    }

    /// @notice Updates the fee for staking transactions
    /// @dev Fee is in 0.1bp increments. i.e. fee = 10 is setting to 1bp
    /// @param _newFee The new fee for future transactions
    function updateFee(uint256 _newFee) external onlyOwner {
        if (_newFee > MAX_FEE) revert FeeTooHigh(_newFee);
        fee = _newFee;
        emit FeeUpdated(_newFee);
    }

    /// @notice Returns several RocketPool constants that the FE needs
    /// @dev Deposit fee in wei. Number needs to be divided by 1e18 to get in percentage
    function fetchRPConstants() external view returns (uint256[4] memory) {
        address rocketTokenRETHAddress = getContractAddress("rocketTokenRETH");
        address rocketDAOSettingsAddress = getContractAddress(
            "rocketDAOProtocolSettingsDeposit"
        );
        address rocketVaultAddress = getContractAddress("rocketVault");
        RocketDAOProtocolSettingsDepositInterface rocketDAOProtocolSettingsDeposit = RocketDAOProtocolSettingsDepositInterface(
                rocketDAOSettingsAddress
            );
        RocketVaultInterface rocketVault = RocketVaultInterface(
            rocketVaultAddress
        );
        RocketTokenRETHInterface rocketTokenRETH = RocketTokenRETHInterface(
            rocketTokenRETHAddress
        );
        uint256 currentDeposits = rocketVault.balanceOf("rocketDepositPool");
        uint256 depositFee = rocketDAOProtocolSettingsDeposit.getDepositFee();
        uint256 depositPoolCap = rocketDAOProtocolSettingsDeposit
            .getMaximumDepositPoolSize();
        uint256 exchangeRate = rocketTokenRETH.getExchangeRate();
        return [currentDeposits, depositFee, depositPoolCap, exchangeRate];
    }

    /// @notice Withdraws all accrued fees to specific address
    /// @param _recipient Address that will receive the fees
    function withdrawFees(address _recipient) external onlyOwner {
        uint256 amountToSend = address(this).balance;
        (bool sent, bytes memory data) = _recipient.call{value: amountToSend}(
            ""
        );
        if (sent != true) revert TransferFailed(_recipient, amountToSend);
        emit FeesWithdrawn(_recipient, amountToSend);
    }

    function pause() external onlyOwner {
        _pause();
    }

    function unpause() external onlyOwner {
        _unpause();
    }

    /// @dev Get the address of a RocketPool network contract by name
    function getContractAddress(string memory _contractName)
        internal
        view
        returns (address)
    {
        address contractAddress = rocketStorage.getAddress(
            keccak256(abi.encodePacked("contract.address", _contractName))
        );
        if (contractAddress == address(0x0)) revert ContractNotFound();
        return contractAddress;
    }
}

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

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

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

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

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

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

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (access/Ownable2Step.sol)

pragma solidity ^0.8.0;

import "./Ownable.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.
 *
 * By default, the owner account will be the one that deploys the contract. 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 Ownable2Step is Ownable {
    address private _pendingOwner;

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

    /**
     * @dev Returns the address of the pending owner.
     */
    function pendingOwner() public view virtual returns (address) {
        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 {
        _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 {
        delete _pendingOwner;
        super._transferOwnership(newOwner);
    }

    /**
     * @dev The new owner accepts the ownership transfer.
     */
    function acceptOwnership() external {
        address sender = _msgSender();
        require(pendingOwner() == sender, "Ownable2Step: caller is not the new owner");
        _transferOwnership(sender);
    }
}

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

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract Pausable is Context {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    constructor() {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }
}

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

pragma solidity ^0.8.0;

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

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

    uint256 private _status;

    constructor() {
        _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 {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

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

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

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.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}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * 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].
 *
 * 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 ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

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

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * 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 override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override 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 value {ERC20} uses, unless this function is
     * 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 override returns (uint8) {
        return 18;
    }

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

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override 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 `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

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

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` 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 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * 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 `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * 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) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `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.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _totalSupply -= amount;
        }

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` 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.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _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
    ) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol)

pragma solidity ^0.8.0;

import "../ERC20.sol";
import "../../../utils/Context.sol";

/**
 * @dev Extension of {ERC20} that allows token holders to destroy both their own
 * tokens and those that they have an allowance for, in a way that can be
 * recognized off-chain (via event analysis).
 */
abstract contract ERC20Burnable is Context, ERC20 {
    /**
     * @dev Destroys `amount` tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 amount) public virtual {
        _burn(_msgSender(), amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, deducting from the caller's
     * allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `amount`.
     */
    function burnFrom(address account, uint256 amount) public virtual {
        _spendAllowance(account, _msgSender(), amount);
        _burn(account, amount);
    }
}

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

pragma solidity ^0.8.0;

import "../IERC20.sol";

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

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

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

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

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

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

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

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

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) external returns (bool);
}

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

pragma solidity ^0.8.0;

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

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

pragma solidity >0.4.24 <0.9.0;
// SPDX-License-Identifier: GPL-3.0

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

/**
 * @title Liquid staking pool
 *
 * For the high-level description of the pool operation please refer to the paper.
 * Pool manages withdrawal keys and fees. It receives ether submitted by users on the ETH 1 side
 * and stakes it via the deposit_contract.sol contract. It doesn't hold ether on it's balance,
 * only a small portion (buffer) of it.
 * It also mints new tokens for rewards generated at the ETH 2.0 side.
 *
 * At the moment withdrawals are not possible in the beacon chain and there's no workaround.
 * Pool will be upgraded to an actual implementation when withdrawals are enabled
 * (Phase 1.5 or 2 of Eth2 launch, likely late 2022 or 2023).
 */
interface LidoInterface is IERC20 {
    function totalSupply() external view returns (uint256);

    function getTotalShares() external view returns (uint256);

    /**
     * @notice Stop pool routine operations
     */
    function stop() external;

    /**
     * @notice Resume pool routine operations
     */
    function resume() external;

    /**
     * @notice Stops accepting new Ether to the protocol
     *
     * @dev While accepting new Ether is stopped, calls to the `submit` function,
     * as well as to the default payable function, will revert.
     *
     * Emits `StakingPaused` event.
     */
    function pauseStaking() external;

    /**
     * @notice Resumes accepting new Ether to the protocol (if `pauseStaking` was called previously)
     * NB: Staking could be rate-limited by imposing a limit on the stake amount
     * at each moment in time, see `setStakingLimit()` and `removeStakingLimit()`
     *
     * @dev Preserves staking limit if it was set previously
     *
     * Emits `StakingResumed` event
     */
    function resumeStaking() external;

    /**
     * @notice Sets the staking rate limit
     *
     * @dev Reverts if:
     * - `_maxStakeLimit` == 0
     * - `_maxStakeLimit` >= 2^96
     * - `_maxStakeLimit` < `_stakeLimitIncreasePerBlock`
     * - `_maxStakeLimit` / `_stakeLimitIncreasePerBlock` >= 2^32 (only if `_stakeLimitIncreasePerBlock` != 0)
     *
     * Emits `StakingLimitSet` event
     *
     * @param _maxStakeLimit max stake limit value
     * @param _stakeLimitIncreasePerBlock stake limit increase per single block
     */
    function setStakingLimit(
        uint256 _maxStakeLimit,
        uint256 _stakeLimitIncreasePerBlock
    ) external;

    /**
     * @notice Removes the staking rate limit
     *
     * Emits `StakingLimitRemoved` event
     */
    function removeStakingLimit() external;

    /**
     * @notice Check staking state: whether it's paused or not
     */
    function isStakingPaused() external view returns (bool);

    /**
     * @notice Returns how much Ether can be staked in the current block
     * @dev Special return values:
     * - 2^256 - 1 if staking is unlimited;
     * - 0 if staking is paused or if limit is exhausted.
     */
    function getCurrentStakeLimit() external view returns (uint256);

    /**
     * @notice Returns full info about current stake limit params and state
     * @dev Might be used for the advanced integration requests.
     * @return isStakingPaused staking pause state (equivalent to return of isStakingPaused())
     * @return isStakingLimitSet whether the stake limit is set
     * @return currentStakeLimit current stake limit (equivalent to return of getCurrentStakeLimit())
     * @return maxStakeLimit max stake limit
     * @return maxStakeLimitGrowthBlocks blocks needed to restore max stake limit from the fully exhausted state
     * @return prevStakeLimit previously reached stake limit
     * @return prevStakeBlockNumber previously seen block number
     */
    function getStakeLimitFullInfo()
        external
        view
        returns (
            bool isStakingPaused,
            bool isStakingLimitSet,
            uint256 currentStakeLimit,
            uint256 maxStakeLimit,
            uint256 maxStakeLimitGrowthBlocks,
            uint256 prevStakeLimit,
            uint256 prevStakeBlockNumber
        );

    event Stopped();
    event Resumed();

    event StakingPaused();
    event StakingResumed();
    event StakingLimitSet(
        uint256 maxStakeLimit,
        uint256 stakeLimitIncreasePerBlock
    );
    event StakingLimitRemoved();

    /**
     * @notice Set Lido protocol contracts (oracle, treasury, insurance fund).
     * @param _oracle oracle contract
     * @param _treasury treasury contract
     * @param _insuranceFund insurance fund contract
     */
    function setProtocolContracts(
        address _oracle,
        address _treasury,
        address _insuranceFund
    ) external;

    event ProtocolContactsSet(
        address oracle,
        address treasury,
        address insuranceFund
    );

    /**
     * @notice Set fee rate to `_feeBasisPoints` basis points.
     * The fees are accrued when:
     * - oracles report staking results (beacon chain balance increase)
     * - validators gain execution layer rewards (priority fees and MEV)
     * @param _feeBasisPoints Fee rate, in basis points
     */
    function setFee(uint16 _feeBasisPoints) external;

    /**
     * @notice Set fee distribution
     * @param _treasuryFeeBasisPoints basis points go to the treasury,
     * @param _insuranceFeeBasisPoints basis points go to the insurance fund,
     * @param _operatorsFeeBasisPoints basis points go to node operators.
     * @dev The sum has to be 10 000.
     */
    function setFeeDistribution(
        uint16 _treasuryFeeBasisPoints,
        uint16 _insuranceFeeBasisPoints,
        uint16 _operatorsFeeBasisPoints
    ) external;

    /**
     * @notice Returns staking rewards fee rate
     */
    function getFee() external view returns (uint16 feeBasisPoints);

    /**
     * @notice Returns fee distribution proportion
     */
    function getFeeDistribution()
        external
        view
        returns (
            uint16 treasuryFeeBasisPoints,
            uint16 insuranceFeeBasisPoints,
            uint16 operatorsFeeBasisPoints
        );

    event FeeSet(uint16 feeBasisPoints);

    event FeeDistributionSet(
        uint16 treasuryFeeBasisPoints,
        uint16 insuranceFeeBasisPoints,
        uint16 operatorsFeeBasisPoints
    );

    /**
     * @notice A payable function supposed to be called only by LidoExecutionLayerRewardsVault contract
     * @dev We need a dedicated function because funds received by the default payable function
     * are treated as a user deposit
     */
    function receiveELRewards() external payable;

    // The amount of ETH withdrawn from LidoExecutionLayerRewardsVault contract to Lido contract
    event ELRewardsReceived(uint256 amount);

    /**
     * @dev Sets limit on amount of ETH to withdraw from execution layer rewards vault per LidoOracle report
     * @param _limitPoints limit in basis points to amount of ETH to withdraw per LidoOracle report
     */
    function setELRewardsWithdrawalLimit(uint16 _limitPoints) external;

    // Percent in basis points of total pooled ether allowed to withdraw from LidoExecutionLayerRewardsVault per LidoOracle report
    event ELRewardsWithdrawalLimitSet(uint256 limitPoints);

    /**
     * @notice Set credentials to withdraw ETH on ETH 2.0 side after the phase 2 is launched to `_withdrawalCredentials`
     * @dev Note that setWithdrawalCredentials discards all unused signing keys as the signatures are invalidated.
     * @param _withdrawalCredentials withdrawal credentials field as defined in the Ethereum PoS consensus specs
     */
    function setWithdrawalCredentials(bytes32 _withdrawalCredentials) external;

    /**
     * @notice Returns current credentials to withdraw ETH on ETH 2.0 side after the phase 2 is launched
     */
    function getWithdrawalCredentials() external view returns (bytes memory);

    event WithdrawalCredentialsSet(bytes32 withdrawalCredentials);

    /**
     * @dev Sets the address of LidoExecutionLayerRewardsVault contract
     * @param _executionLayerRewardsVault Execution layer rewards vault contract address
     */
    function setELRewardsVault(address _executionLayerRewardsVault) external;

    // The `executionLayerRewardsVault` was set as the execution layer rewards vault for Lido
    event ELRewardsVaultSet(address executionLayerRewardsVault);

    /**
     * @notice Ether on the ETH 2.0 side reported by the oracle
     * @param _epoch Epoch id
     * @param _eth2balance Balance in wei on the ETH 2.0 side
     */
    function handleOracleReport(uint256 _epoch, uint256 _eth2balance) external;

    // User functions

    /**
     * @notice Adds eth to the pool
     * @return StETH Amount of StETH generated
     */
    function submit(address _referral) external payable returns (uint256 StETH);

    // Records a deposit made by a user
    event Submitted(address indexed sender, uint256 amount, address referral);

    // The `amount` of ether was sent to the deposit_contract.deposit function
    event Unbuffered(uint256 amount);

    // Requested withdrawal of `etherAmount` to `pubkeyHash` on the ETH 2.0 side, `tokenAmount` burned by `sender`,
    // `sentFromBuffer` was sent on the current Ethereum side.
    event Withdrawal(
        address indexed sender,
        uint256 tokenAmount,
        uint256 sentFromBuffer,
        bytes32 indexed pubkeyHash,
        uint256 etherAmount
    );

    // Info functions

    /**
     * @notice Gets the amount of Ether controlled by the system
     */
    function getTotalPooledEther() external view returns (uint256);

    /**
     * @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);

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

    /**
     * @notice Gets the amount of Ether temporary buffered on this contract balance
     */
    function getBufferedEther() external view returns (uint256);

    /**
     * @notice Returns the key values related to Beacon-side
     * @return depositedValidators - number of deposited validators
     * @return beaconValidators - number of Lido's validators visible in the Beacon state, reported by oracles
     * @return beaconBalance - total amount of Beacon-side Ether (sum of all the balances of Lido validators)
     */
    function getBeaconStat()
        external
        view
        returns (
            uint256 depositedValidators,
            uint256 beaconValidators,
            uint256 beaconBalance
        );
}

pragma solidity >0.5.0 <0.9.0;

// SPDX-License-Identifier: GPL-3.0-only

interface RocketDAOProtocolSettingsDepositInterface {
    function getDepositEnabled() external view returns (bool);

    function getAssignDepositsEnabled() external view returns (bool);

    function getMinimumDeposit() external view returns (uint256);

    function getMaximumDepositPoolSize() external view returns (uint256);

    function getMaximumDepositAssignments() external view returns (uint256);

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

pragma solidity >0.5.0 <0.9.0;

// SPDX-License-Identifier: GPL-3.0-only

interface RocketDepositPoolInterface {
    function getBalance() external view returns (uint256);

    function getExcessBalance() external view returns (uint256);

    function deposit() external payable;

    function recycleDissolvedDeposit() external payable;

    function recycleExcessCollateral() external payable;

    function recycleLiquidatedStake() external payable;

    function assignDeposits() external;

    function withdrawExcessBalance(uint256 _amount) external;
}

pragma solidity >0.5.0 <0.9.0;

// SPDX-License-Identifier: GPL-3.0-only

interface RocketStorageInterface {
    // Deploy status
    function getDeployedStatus() external view returns (bool);

    // Guardian
    function getGuardian() external view returns (address);

    function setGuardian(address _newAddress) external;

    function confirmGuardian() external;

    // Getters
    function getAddress(bytes32 _key) external view returns (address);

    function getUint(bytes32 _key) external view returns (uint256);

    function getString(bytes32 _key) external view returns (string memory);

    function getBytes(bytes32 _key) external view returns (bytes memory);

    function getBool(bytes32 _key) external view returns (bool);

    function getInt(bytes32 _key) external view returns (int256);

    function getBytes32(bytes32 _key) external view returns (bytes32);

    // Setters
    function setAddress(bytes32 _key, address _value) external;

    function setUint(bytes32 _key, uint256 _value) external;

    function setString(bytes32 _key, string calldata _value) external;

    function setBytes(bytes32 _key, bytes calldata _value) external;

    function setBool(bytes32 _key, bool _value) external;

    function setInt(bytes32 _key, int256 _value) external;

    function setBytes32(bytes32 _key, bytes32 _value) external;

    // Deleters
    function deleteAddress(bytes32 _key) external;

    function deleteUint(bytes32 _key) external;

    function deleteString(bytes32 _key) external;

    function deleteBytes(bytes32 _key) external;

    function deleteBool(bytes32 _key) external;

    function deleteInt(bytes32 _key) external;

    function deleteBytes32(bytes32 _key) external;

    // Arithmetic
    function addUint(bytes32 _key, uint256 _amount) external;

    function subUint(bytes32 _key, uint256 _amount) external;

    // Protected storage
    function getNodeWithdrawalAddress(address _nodeAddress)
        external
        view
        returns (address);

    function getNodePendingWithdrawalAddress(address _nodeAddress)
        external
        view
        returns (address);

    function setWithdrawalAddress(
        address _nodeAddress,
        address _newWithdrawalAddress,
        bool _confirm
    ) external;

    function confirmWithdrawalAddress(address _nodeAddress) external;
}

pragma solidity >0.5.0 <0.9.0;

// SPDX-License-Identifier: GPL-3.0-only

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

interface RocketTokenRETHInterface is IERC20 {
    function getEthValue(uint256 _rethAmount) external view returns (uint256);

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

    function getExchangeRate() external view returns (uint256);

    function getTotalCollateral() external view returns (uint256);

    function getCollateralRate() external view returns (uint256);

    function depositExcess() external payable;

    function depositExcessCollateral() external;

    function mint(uint256 _ethAmount, address _to) external;

    function burn(uint256 _rethAmount) external;
}

pragma solidity >0.5.0 <0.9.0;

// SPDX-License-Identifier: GPL-3.0-only
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";

interface RocketVaultInterface {
    function balanceOf(string memory _networkContractName)
        external
        view
        returns (uint256);

    function depositEther() external payable;

    function withdrawEther(uint256 _amount) external;

    function depositToken(
        string memory _networkContractName,
        IERC20 _tokenAddress,
        uint256 _amount
    ) external;

    function withdrawToken(
        address _withdrawalAddress,
        IERC20 _tokenAddress,
        uint256 _amount
    ) external;

    function balanceOfToken(
        string memory _networkContractName,
        IERC20 _tokenAddress
    ) external view returns (uint256);

    function transferToken(
        string memory _networkContractName,
        IERC20 _tokenAddress,
        uint256 _amount
    ) external;

    function burnToken(ERC20Burnable _tokenAddress, uint256 _amount) external;
}

{
  "optimizer": {
    "enabled": true,
    "runs": 999999
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"_owner","type":"address"},{"internalType":"address","name":"_lidoReferralAddress","type":"address"},{"internalType":"contract RocketStorageInterface","name":"_rocketStorageAddress","type":"address"},{"internalType":"contract LidoInterface","name":"_lidoProxyAddress","type":"address"},{"internalType":"uint256","name":"_fee","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"ContractNotFound","type":"error"},{"inputs":[{"internalType":"uint256","name":"fee","type":"uint256"}],"name":"FeeTooHigh","type":"error"},{"inputs":[],"name":"InsufficientAmount","type":"error"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"}],"name":"NoTokensMinted","type":"error"},{"inputs":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TransferFailed","type":"error"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"_newFee","type":"uint256"}],"name":"FeeUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"_amountWithdrawn","type":"uint256"}],"name":"FeesWithdrawn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferStarted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"FEE_BASE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MAX_FEE","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"acceptOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"depositToLido","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"depositToRP","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"fee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"fetchRPConstants","outputs":[{"internalType":"uint256[4]","name":"","type":"uint256[4]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lidoProxyAddress","outputs":[{"internalType":"contract LidoInterface","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lidoReferralAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pendingOwner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_newFee","type":"uint256"}],"name":"updateFee","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_recipient","type":"address"}],"name":"withdrawFees","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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00000000000000000000000027c5706cc6deed9e0cb86f1238cc2fb5c7eb0bb4000000000000000000000000fe2da24c0d0ecdcc4753ef7d1ed637b75b7b6c470000000000000000000000001d8f8f00cfa6758d7be78336684788fb0ee0fa46000000000000000000000000ae7ab96520de3a18e5e111b5eaab095312d7fe840000000000000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _owner (address): 0x27c5706cC6DEED9E0Cb86f1238Cc2FB5C7eb0Bb4
Arg [1] : _lidoReferralAddress (address): 0xfe2da24c0D0ECdcC4753ef7D1eD637b75B7B6C47
Arg [2] : _rocketStorageAddress (address): 0x1d8f8f00cfa6758d7bE78336684788Fb0ee0Fa46
Arg [3] : _lidoProxyAddress (address): 0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84
Arg [4] : _fee (uint256): 0

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 00000000000000000000000027c5706cc6deed9e0cb86f1238cc2fb5c7eb0bb4
Arg [1] : 000000000000000000000000fe2da24c0d0ecdcc4753ef7d1ed637b75b7b6c47
Arg [2] : 0000000000000000000000001d8f8f00cfa6758d7be78336684788fb0ee0fa46
Arg [3] : 000000000000000000000000ae7ab96520de3a18e5e111b5eaab095312d7fe84
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000000