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// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "../@openzeppelin/contracts/utils/structs/EnumerableSet.sol";
import "../@openzeppelin/contracts/proxy/Clones.sol";
import "../@openzeppelin/contracts/utils/introspection/ERC165.sol";

import "../interfaces/IDepositContract.sol";
import "../interfaces/p2p/IFeeDistributor.sol";
import "../interfaces/p2p/IFeeDistributorFactory.sol";
import "../interfaces/ssv/ISSVViews.sol";

import "../assetRecovering/OwnableAssetRecoverer.sol";
import "../access/OwnableWithOperator.sol";
import "../p2pSsvProxy/P2pSsvProxy.sol";
import "../structs/P2pStructs.sol";
import "./IP2pSsvProxyFactory.sol";

/// @notice Passed address is not a valid FeeDistributorFactory
/// @param _passedAddress Passed address
error P2pSsvProxyFactory__NotFeeDistributorFactory(address _passedAddress);

/// @notice Passed address is not a valid FeeDistributor
/// @param _passedAddress Passed address
error P2pSsvProxyFactory__NotFeeDistributor(address _passedAddress);

/// @notice Passed address is not a valid P2pSsvProxy
/// @param _passedAddress Passed address
error P2pSsvProxyFactory__NotP2pSsvProxy(address _passedAddress);

/// @notice Caller in not an allowed SSV operator owner
/// @param _caller Caller address
error P2pSsvProxyFactory__NotAllowedSsvOperatorOwner(address _caller);

/// @notice Cannot add an already existing SSV operator owner address
/// @param _ssvOperatorOwner an already existing SSV operator owner address
error P2pSsvProxyFactory__SsvOperatorOwnerAlreadyExists(address _ssvOperatorOwner);

/// @notice Cannot remove a nonexisting SSV operator owner address
/// @param _ssvOperatorOwner a nonexisting SSV operator owner address
error P2pSsvProxyFactory__SsvOperatorOwnerDoesNotExist(address _ssvOperatorOwner);

/// @notice This SSV operator ID is not allowed. Check both the operator owner address and the ID for being allowed
/// @param _ssvOperatorOwner operator owner address
/// @param _ssvOperatorId operator ID
error P2pSsvProxyFactory__SsvOperatorNotAllowed(address _ssvOperatorOwner, uint64 _ssvOperatorId);

/// @notice All operators should belong to different owners
/// @param _ssvOperatorOwner operator owner who owns at least 2 of the passed operator IDs
/// @param _ssvOperatorId1 passed operator ID owned by the same owner
/// @param _ssvOperatorId2 passed operator ID owned by the same owner
error P2pSsvProxyFactory__DuplicateOperatorOwnersNotAllowed(
    address _ssvOperatorOwner,
    uint64 _ssvOperatorId1,
    uint64 _ssvOperatorId2
);

/// @notice All the SSV operator IDs must be unique
/// @param _ssvOperatorId duplicated operator ID
error P2pSsvProxyFactory__DuplicateIdsNotAllowed(uint64 _ssvOperatorId);

/// @notice ETH value passed with the transaction must be equal to the needed value
/// @param _needed needed ETH value
/// @param _paid actually sent ETH value
error P2pSsvProxyFactory__NotEnoughEtherPaidToCoverSsvFees(uint256 _needed, uint256 _paid);

/// @notice ETH value passed with the transaction must be equal to 32 times validator count
/// @param _actualEthValue actually sent ETH value
error P2pSsvProxyFactory__EthValueMustBe32TimesValidatorCount(uint256 _actualEthValue);

/// @dev We assume, SSV won't either drop 7539x or soar higher than 100 ETH.
/// If it does, this contract won't be operational and another contract will have to be deployed.
error P2pSsvProxyFactory__SsvPerEthExchangeRateDividedByWeiOutOfRange();

/// @notice Maximum amount of SSV tokens per validator must be >= 10^12 and <= 10^24
error P2pSsvProxyFactory__MaxSsvTokenAmountPerValidatorOutOfRange();

/// @notice SSV per ETH exchange rate has not been set. Cannot register validators without it.
error P2pSsvProxyFactory__SsvPerEthExchangeRateDividedByWeiNotSet();

/// @notice Maximum amount of SSV tokens per validator has not been set. Cannot do depositEthAndRegisterValidators without it.
error P2pSsvProxyFactory__MaxSsvTokenAmountPerValidatorNotSet();

/// @notice Cannot use token amount per validator larger than Maximum amount of SSV tokens per validator.
error P2pSsvProxyFactory__MaxSsvTokenAmountPerValidatorExceeded();

/// @notice This SSV operator ID does not belong to the passed owner
/// @param _operatorId SSV operator ID
/// @param _passedOwner passed address for SSV operator owner
/// @param _actualOwner actual SSV operator owner address
error P2pSsvProxyFactory__SsvOperatorIdDoesNotBelongToOwner(
    uint64 _operatorId,
    address _passedOwner,
    address _actualOwner
);

/// @notice Should pass at least 1 selector
error P2pSsvProxyFactory__CannotSetZeroSelectors();

/// @notice Should pass at least 1 SSV operator owner
error P2pSsvProxyFactory__CannotSetZeroAllowedSsvOperatorOwners();

/// @notice Should pass at least 1 SSV operator owner
error P2pSsvProxyFactory__CannotRemoveZeroAllowedSsvOperatorOwners();

/// @notice There should equal number of pubkeys, signatures, and depositDataRoots
/// @param _ssvValidatorsLength validators list length
/// @param _signaturesLength signatures list length
/// @param _depositDataRootsLength depositDataRoots list length
error P2pSsvProxyFactory__DepositDataArraysShouldHaveTheSameLength(
    uint256 _ssvValidatorsLength,
    uint256 _signaturesLength,
    uint256 _depositDataRootsLength
);

/// @title Entry point for SSV validator registration
/// @dev Deploys P2pSsvProxy instances
contract P2pSsvProxyFactory is OwnableAssetRecoverer, OwnableWithOperator, ERC165, IP2pSsvProxyFactory {
    using EnumerableSet for EnumerableSet.AddressSet;

    /// @notice Beacon Deposit Contract
    IDepositContract private immutable i_depositContract;

    /// @notice FeeDistributorFactory
    IFeeDistributorFactory private immutable i_feeDistributorFactory;

    /// @notice SSV ERC-20 token
    IERC20 private immutable i_ssvToken;

    /// @notice SSVNetworkViews
    ISSVViews private immutable i_ssvViews;

    /// @notice Template set by P2P to be used for new FeeDistributor instances.
    /// @dev Can be changed by P2P at any time. It will only affect the new clusters.
    /// Existing clusters will keep their existing FeeDistributor instance.
    address private s_referenceFeeDistributor;

    /// @notice Template set by P2P to be used for new P2pSsvProxy instances.
    /// @dev Can be changed by P2P at any time. It will only affect the new clusters.
    /// Existing clusters will keep their existing P2pSsvProxy instance.
    P2pSsvProxy private s_referenceP2pSsvProxy;

    /// @notice a set of addresses of SSV operator owners (both P2P and partners).
    /// @dev Only P2P can add or remove addresses from the set.
    EnumerableSet.AddressSet private s_allowedSsvOperatorOwners;

    /// @notice a mapping of (operator owner address → SSV operator IDs list).
    /// @dev The list of allowed SSV operator IDs for each address is limited to 8 IDs.
    /// The operator owner can update only their list. P2P can update lists of any owners.
    mapping(address => uint64[MAX_ALLOWED_SSV_OPERATOR_IDS]) private s_allowedSsvOperatorIds;

    /// @notice a mapping of (client address → a list of addresses of the deployed client P2pSsvProxy instances).
    /// @dev Updated automatically during P2pSsvProxy instance deployment.
    mapping(address => address[]) private s_allClientP2pSsvProxies;

    /// @notice a list of all ever deployed client P2pSsvProxy instances.
    /// @dev Updated automatically during P2pSsvProxy instance deployment.
    address[] private s_allP2pSsvProxies;

    /// @notice a mapping to check if a certain selector (function signature) is allowed for clients to call on SSVNetwork via P2pSsvProxy.
    mapping(bytes4 => bool) private s_clientSelectors;

    /// @notice a mapping to check if a certain selector (function signature) is allowed for a P2P operator to call on SSVNetwork via P2pSsvProxy.
    mapping(bytes4 => bool) private s_operatorSelectors;

    /// @notice Exchange rate between SSV and ETH set by P2P.
    /// @dev (If 1 SSV = 0.007539 ETH, it should be 0.007539 * 10^18 = 7539000000000000).
    /// Only used during validator registration without ETH deposits to cover SSV token costs with client ETH.
    /// SSV tokens exchanged with this rate cannot be withdrawn by the client.
    /// P2P is willing to tolarate potential discrepancies with the market exchange rate for the sake of simplicity.
    /// The client agrees to this rate when calls `registerValidators` function.
    uint112 private s_ssvPerEthExchangeRateDividedByWei;

    /// @notice Maximum amount of SSV tokens per validator that is allowed for client to deposit during `depositEthAndRegisterValidators`
    uint112 private s_maxSsvTokenAmountPerValidator;

    /// @notice If the given _ssvOperatorOwner is not allowed, revert
    modifier onlyAllowedSsvOperatorOwner(address _ssvOperatorOwner) {
        bool isAllowed = s_allowedSsvOperatorOwners.contains(_ssvOperatorOwner);
        if (!isAllowed) {
            revert P2pSsvProxyFactory__NotAllowedSsvOperatorOwner(_ssvOperatorOwner);
        }
        _;
    }

    /// @notice If the msg.sender is not an allowed SSV operator owner, revert
    modifier onlySsvOperatorOwner() {
        bool isAllowed = s_allowedSsvOperatorOwners.contains(msg.sender);
        if (!isAllowed) {
            revert P2pSsvProxyFactory__NotAllowedSsvOperatorOwner(msg.sender);
        }
        _;
    }

    /// @notice Revert if either 1) one of the operator IDs is not allowed 2) at least 2 operator IDs belong to the same owner
    modifier onlyAllowedOperators(SsvOperator[] calldata _operators) {
        uint256 operatorCount = _operators.length;
        for (uint256 i = 0; i < operatorCount;) {
            address currentOperatorOwner = _operators[i].owner;

            uint64[MAX_ALLOWED_SSV_OPERATOR_IDS] memory allowedIds = s_allowedSsvOperatorIds[currentOperatorOwner];

            bool isAllowed;
            for (uint256 j = 0; j < MAX_ALLOWED_SSV_OPERATOR_IDS;) {
                if (allowedIds[j] == _operators[i].id) {
                    isAllowed = true;
                    break;
                }

                unchecked {++j;}
            }
            if (!isAllowed) {
                revert P2pSsvProxyFactory__SsvOperatorNotAllowed(currentOperatorOwner, _operators[i].id);
            }

            for (uint256 k = 0; k < operatorCount;) {
                if (i != k && currentOperatorOwner == _operators[k].owner) {
                    revert P2pSsvProxyFactory__DuplicateOperatorOwnersNotAllowed(
                        currentOperatorOwner,
                        _operators[i].id,
                        _operators[k].id
                    );
                }

                unchecked {++k;}
            }

            unchecked {++i;}
        }

        _;
    }

    /// @dev Set values that are constant, common for all clients, known at the initial deploy time.
    /// @param _feeDistributorFactory FeeDistributorFactory address
    /// @param _referenceFeeDistributor reference FeeDistributor address
    constructor(
        address _feeDistributorFactory,
        address _referenceFeeDistributor
    ) {
        if (!ERC165Checker.supportsInterface(_feeDistributorFactory, type(IFeeDistributorFactory).interfaceId)) {
            revert P2pSsvProxyFactory__NotFeeDistributorFactory(_feeDistributorFactory);
        }
        i_feeDistributorFactory = IFeeDistributorFactory(_feeDistributorFactory);

        if (!ERC165Checker.supportsInterface(_referenceFeeDistributor, type(IFeeDistributor).interfaceId)) {
            revert P2pSsvProxyFactory__NotFeeDistributor(_referenceFeeDistributor);
        }

        s_referenceFeeDistributor = _referenceFeeDistributor;
        emit P2pSsvProxyFactory__ReferenceFeeDistributorSet(_referenceFeeDistributor);

        i_depositContract = (block.chainid == 1)
            ? IDepositContract(0x00000000219ab540356cBB839Cbe05303d7705Fa)
            : (block.chainid == 5)
                ? IDepositContract(0xff50ed3d0ec03aC01D4C79aAd74928BFF48a7b2b)
                : IDepositContract(0x4242424242424242424242424242424242424242);

        i_ssvToken = (block.chainid == 1)
            ? IERC20(0x9D65fF81a3c488d585bBfb0Bfe3c7707c7917f54)
            : (block.chainid == 5)
                ? IERC20(0x3a9f01091C446bdE031E39ea8354647AFef091E7)
                : IERC20(0xad45A78180961079BFaeEe349704F411dfF947C6);

        i_ssvViews = (block.chainid == 1)
            ? ISSVViews(0xafE830B6Ee262ba11cce5F32fDCd760FFE6a66e4)
            : (block.chainid == 5)
                ? ISSVViews(0xAE2C84c48272F5a1746150ef333D5E5B51F68763)
                : ISSVViews(0x352A18AEe90cdcd825d1E37d9939dCA86C00e281);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function setSsvPerEthExchangeRateDividedByWei(uint112 _ssvPerEthExchangeRateDividedByWei) external onlyOwner {
        if (_ssvPerEthExchangeRateDividedByWei < 10 ** 12 || _ssvPerEthExchangeRateDividedByWei > 10 ** 20) {
            revert P2pSsvProxyFactory__SsvPerEthExchangeRateDividedByWeiOutOfRange();
        }

        s_ssvPerEthExchangeRateDividedByWei = _ssvPerEthExchangeRateDividedByWei;
        emit P2pSsvProxyFactory__SsvPerEthExchangeRateDividedByWeiSet(_ssvPerEthExchangeRateDividedByWei);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function setMaxSsvTokenAmountPerValidator(uint112 _maxSsvTokenAmountPerValidator) external onlyOwner {
        if (_maxSsvTokenAmountPerValidator < 10 ** 12 || _maxSsvTokenAmountPerValidator > 10 ** 24) {
            revert P2pSsvProxyFactory__MaxSsvTokenAmountPerValidatorOutOfRange();
        }

        s_maxSsvTokenAmountPerValidator = _maxSsvTokenAmountPerValidator;
        emit P2pSsvProxyFactory__MaxSsvTokenAmountPerValidatorSet(_maxSsvTokenAmountPerValidator);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function setReferenceP2pSsvProxy(address _referenceP2pSsvProxy) external onlyOwner {
        if (!ERC165Checker.supportsInterface(_referenceP2pSsvProxy, type(IP2pSsvProxy).interfaceId)) {
            revert P2pSsvProxyFactory__NotP2pSsvProxy(_referenceP2pSsvProxy);
        }

        s_referenceP2pSsvProxy = P2pSsvProxy(_referenceP2pSsvProxy);
        emit P2pSsvProxyFactory__ReferenceP2pSsvProxySet(_referenceP2pSsvProxy);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function setAllowedSelectorsForClient(bytes4[] calldata _selectors) external onlyOwner {
        uint256 count = _selectors.length;

        if (count == 0) {
            revert P2pSsvProxyFactory__CannotSetZeroSelectors();
        }

        for (uint256 i = 0; i < count;) {
            s_clientSelectors[_selectors[i]] = true;

            unchecked {
                ++i;
            }
        }

        emit P2pSsvProxyFactory__AllowedSelectorsForClientSet(_selectors);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function setAllowedSelectorsForOperator(bytes4[] calldata _selectors) external onlyOwner {
        uint256 count = _selectors.length;

        if (count == 0) {
            revert P2pSsvProxyFactory__CannotSetZeroSelectors();
        }

        for (uint256 i = 0; i < count;) {
            s_operatorSelectors[_selectors[i]] = true;

            unchecked {
                ++i;
            }
        }

        emit P2pSsvProxyFactory__AllowedSelectorsForOperatorSet(_selectors);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function setReferenceFeeDistributor(
        address _referenceFeeDistributor
    ) external onlyOperatorOrOwner {
        if (!ERC165Checker.supportsInterface(_referenceFeeDistributor, type(IFeeDistributor).interfaceId)) {
            revert P2pSsvProxyFactory__NotFeeDistributor(_referenceFeeDistributor);
        }

        s_referenceFeeDistributor = _referenceFeeDistributor;
        emit P2pSsvProxyFactory__ReferenceFeeDistributorSet(_referenceFeeDistributor);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function setAllowedSsvOperatorOwners(
        address[] calldata _allowedSsvOperatorOwners
    ) external onlyOperatorOrOwner {
        uint256 count = _allowedSsvOperatorOwners.length;

        if (count == 0) {
            revert P2pSsvProxyFactory__CannotSetZeroAllowedSsvOperatorOwners();
        }

        for (uint256 i = 0; i < count;) {
            address allowedSsvOperatorOwner = _allowedSsvOperatorOwners[i];

            if (!s_allowedSsvOperatorOwners.add(allowedSsvOperatorOwner)) {
                revert P2pSsvProxyFactory__SsvOperatorOwnerAlreadyExists(allowedSsvOperatorOwner);
            }

            unchecked {
                ++i;
            }
        }

        emit P2pSsvProxyFactory__AllowedSsvOperatorOwnersSet(_allowedSsvOperatorOwners);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function removeAllowedSsvOperatorOwners(
        address[] calldata _allowedSsvOperatorOwnersToRemove
    ) external onlyOperatorOrOwner {
        uint256 count = _allowedSsvOperatorOwnersToRemove.length;

        if (count == 0) {
            revert P2pSsvProxyFactory__CannotRemoveZeroAllowedSsvOperatorOwners();
        }

        for (uint256 i = 0; i < count;) {
            address allowedSsvOperatorOwnersToRemove = _allowedSsvOperatorOwnersToRemove[i];

            if (!s_allowedSsvOperatorOwners.remove(allowedSsvOperatorOwnersToRemove)) {
                revert P2pSsvProxyFactory__SsvOperatorOwnerDoesNotExist(allowedSsvOperatorOwnersToRemove);
            }

            unchecked {
                ++i;
            }
        }

        emit P2pSsvProxyFactory__AllowedSsvOperatorOwnersRemoved(_allowedSsvOperatorOwnersToRemove);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function setSsvOperatorIds(
        uint64[MAX_ALLOWED_SSV_OPERATOR_IDS] calldata _operatorIds
    ) external onlySsvOperatorOwner {
        _setSsvOperatorIds(_operatorIds, msg.sender);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function setSsvOperatorIds(
        uint64[MAX_ALLOWED_SSV_OPERATOR_IDS] calldata _operatorIds,
        address _ssvOperatorOwner
    ) external onlyOperatorOrOwner onlyAllowedSsvOperatorOwner(_ssvOperatorOwner) {
        _setSsvOperatorIds(_operatorIds, _ssvOperatorOwner);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function clearSsvOperatorIds() external onlySsvOperatorOwner {
        _clearSsvOperatorIds(msg.sender);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function clearSsvOperatorIds(
        address _ssvOperatorOwner
    ) external onlyOperatorOrOwner {
        _clearSsvOperatorIds(_ssvOperatorOwner);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function predictP2pSsvProxyAddress(
        address _feeDistributorInstance
    ) public view returns (address) {
        return Clones.predictDeterministicAddress(
            address(s_referenceP2pSsvProxy),
            bytes32(bytes20(_feeDistributorInstance))
        );
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function createP2pSsvProxy(
        address _feeDistributorInstance
    ) external onlyOperatorOrOwner returns(address p2pSsvProxyInstance) {
        p2pSsvProxyInstance = _createP2pSsvProxy(_feeDistributorInstance);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function depositEthAndRegisterValidators(
        DepositData calldata _depositData,
        address _withdrawalCredentialsAddress,

        SsvPayload calldata _ssvPayload,

        FeeRecipient calldata _clientConfig,
        FeeRecipient calldata _referrerConfig
    ) external payable returns (address p2pSsvProxy) {
        _checkTokenAmount(_ssvPayload.tokenAmount, _ssvPayload.ssvValidators.length);

        _makeBeaconDeposits(_depositData, _withdrawalCredentialsAddress, _ssvPayload.ssvValidators);

        p2pSsvProxy = _registerValidators(_ssvPayload, _clientConfig, _referrerConfig);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function registerValidators(
        SsvPayload calldata _ssvPayload,
        FeeRecipient calldata _clientConfig,
        FeeRecipient calldata _referrerConfig
    ) external payable returns (address p2pSsvProxy) {
        _checkEthValue(_ssvPayload.tokenAmount);

        p2pSsvProxy = _registerValidators(_ssvPayload, _clientConfig, _referrerConfig);
    }

    function _checkTokenAmount(
        uint256 _tokenAmount,
        uint256 _validatorCount
    ) private view {
        uint112 maxSsvTokenAmountPerValidator = s_maxSsvTokenAmountPerValidator;

        if (maxSsvTokenAmountPerValidator == 0) {
            revert P2pSsvProxyFactory__MaxSsvTokenAmountPerValidatorNotSet();
        }

        if (_tokenAmount > maxSsvTokenAmountPerValidator * _validatorCount) {
            revert P2pSsvProxyFactory__MaxSsvTokenAmountPerValidatorExceeded();
        }
    }

    /// @notice Register validators with SSV (up to 60, calldata size is the limit) without ETH deposits
    /// @dev Common logic for depositEthAndRegisterValidators and registerValidators functions
    /// @param _ssvPayload a stuct with data necessary for SSV registration (see `SsvPayload` struct for details)
    /// @param _clientConfig address and basis points (percent * 100) of the client (for FeeDistributor)
    /// @param _referrerConfig address and basis points (percent * 100) of the referrer (for FeeDistributor)
    /// @return p2pSsvProxy client P2pSsvProxy instance that became the SSV cluster owner
    function _registerValidators(
        SsvPayload calldata _ssvPayload,
        FeeRecipient calldata _clientConfig,
        FeeRecipient calldata _referrerConfig
    ) private onlyAllowedOperators(_ssvPayload.ssvOperators) returns (address p2pSsvProxy) {
        address feeDistributorInstance = _createFeeDistributor(_clientConfig, _referrerConfig);
        p2pSsvProxy = _createP2pSsvProxy(feeDistributorInstance);

        i_ssvToken.transfer(address(p2pSsvProxy), _ssvPayload.tokenAmount);

        P2pSsvProxy(p2pSsvProxy).registerValidators(
            _ssvPayload,
            feeDistributorInstance
        );

        emit P2pSsvProxyFactory__RegistrationCompleted(p2pSsvProxy);
    }

    /// @notice Deploy P2pSsvProxy instance if not deployed before
    /// @param _feeDistributorInstance The address of FeeDistributor instance
    /// @return p2pSsvProxyInstance client P2pSsvProxy instance that has been deployed
    function _createP2pSsvProxy(
        address _feeDistributorInstance
    ) private returns(address p2pSsvProxyInstance) {
        p2pSsvProxyInstance = predictP2pSsvProxyAddress(_feeDistributorInstance);
        if (p2pSsvProxyInstance.code.length == 0) { // if p2pSsvProxyInstance doesn't exist, deploy it
            if (!ERC165Checker.supportsInterface(_feeDistributorInstance, type(IFeeDistributor).interfaceId)) {
                revert P2pSsvProxyFactory__NotFeeDistributor(_feeDistributorInstance);
            }

            // clone the reference implementation of P2pSsvProxy
            p2pSsvProxyInstance = Clones.cloneDeterministic(
                address(s_referenceP2pSsvProxy),
                bytes32(bytes20(_feeDistributorInstance))
            );

            // set the client address to the cloned P2pSsvProxy instance
            P2pSsvProxy(p2pSsvProxyInstance).initialize(_feeDistributorInstance);

            address client = IFeeDistributor(_feeDistributorInstance).client();

            // append new P2pSsvProxy address to all client P2pSsvProxies array
            s_allClientP2pSsvProxies[client].push(p2pSsvProxyInstance);

            // append new P2pSsvProxy address to all P2pSsvProxies array
            s_allP2pSsvProxies.push(p2pSsvProxyInstance);

            // emit event with the address of the newly created instance for the external listener
            emit P2pSsvProxyFactory__P2pSsvProxyCreated(
                p2pSsvProxyInstance,
                client,
                _feeDistributorInstance
            );
        }
    }

    /// @notice Deploy FeeDistributor instance if not deployed before
    /// @param _clientConfig address and basis points (percent * 100) of the client (for FeeDistributor)
    /// @param _referrerConfig address and basis points (percent * 100) of the referrer (for FeeDistributor)
    /// @return feeDistributorInstance client FeeDistributor instance that has been deployed
    function _createFeeDistributor(
        FeeRecipient calldata _clientConfig,
        FeeRecipient calldata _referrerConfig
    ) private returns(address feeDistributorInstance) {
        address referenceFeeDistributor_ = s_referenceFeeDistributor;

        feeDistributorInstance = i_feeDistributorFactory.predictFeeDistributorAddress(
            referenceFeeDistributor_,
            _clientConfig,
            _referrerConfig
        );
        if (feeDistributorInstance.code.length == 0) {
            // if feeDistributorInstance doesn't exist, deploy it
            i_feeDistributorFactory.createFeeDistributor(
                referenceFeeDistributor_,
                _clientConfig,
                _referrerConfig
            );
        }
    }

    /// @notice Check ETH value for validator registrations without ETH deposits.
    /// @dev P2P cannot afford totally free validator registrations since they are paid with P2P's SSV tokens.
    /// It's OK for validator registrations with ETH deposits since we can be confident in the existense of EL rewards
    /// that will cover the SSV tokens cost in that case.
    /// If there are no ETH deposits, to prevent draining of SSV tokens from P2pSsvProxyFactory,
    /// the client pays for the used SSV tokens.
    /// The client will only need to pay once. Starting from the next month, P2P will be depositing SSV tokens to the clusters
    /// the same way as with ETH deposits.
    /// @param _tokenAmount amount of ERC-20 SSV tokens for validator registration
    function _checkEthValue(
        uint256 _tokenAmount
    ) private view {
        uint112 exchangeRate = s_ssvPerEthExchangeRateDividedByWei;
        if (exchangeRate == 0) {
            revert P2pSsvProxyFactory__SsvPerEthExchangeRateDividedByWeiNotSet();
        }

        uint256 ssvTokensValueInWei = (_tokenAmount * exchangeRate) / 10**18;
        if (msg.value != ssvTokensValueInWei) {
            revert P2pSsvProxyFactory__NotEnoughEtherPaidToCoverSsvFees(ssvTokensValueInWei, msg.value);
        }
    }

    /// @notice Set SSV operator IDs list for a SSV operator owner
    /// @param _operatorIds SSV operator IDs list
    /// @param _ssvOperatorOwner SSV operator owner
    function _setSsvOperatorIds(
        uint64[MAX_ALLOWED_SSV_OPERATOR_IDS] calldata _operatorIds,
        address _ssvOperatorOwner
    ) private {
        for (uint i = 0; i < _operatorIds.length;) {
            uint64 id = _operatorIds[i];

            for (uint j = i + 1; j < _operatorIds.length;) {
                if (id == _operatorIds[j] && id != 0) {
                    revert P2pSsvProxyFactory__DuplicateIdsNotAllowed(id);
                }
                unchecked {
                    ++j;
                }
            }

            if (id != 0) {
                (address actualOwner,,,,,) = i_ssvViews.getOperatorById(id);
                if (actualOwner != _ssvOperatorOwner) {
                    revert P2pSsvProxyFactory__SsvOperatorIdDoesNotBelongToOwner(id, _ssvOperatorOwner, actualOwner);
                }
            }

            unchecked {
                ++i;
            }
        }

        s_allowedSsvOperatorIds[_ssvOperatorOwner] = _operatorIds;
        emit P2pSsvProxyFactory__SsvOperatorIdsSet(_ssvOperatorOwner, _operatorIds);
    }

    /// @notice Clear SSV operator IDs list for a SSV operator owner
    /// @param _ssvOperatorOwner SSV operator owner
    function _clearSsvOperatorIds(
        address _ssvOperatorOwner
    ) private {
        delete s_allowedSsvOperatorIds[_ssvOperatorOwner];
        emit P2pSsvProxyFactory__SsvOperatorIdsCleared(_ssvOperatorOwner);
    }

    /// @notice Make ETH2 (Beacon) deposits via the official Beacon Deposit Contract
    /// @param _depositData signatures and depositDataRoots from Beacon deposit data
    /// @param _withdrawalCredentialsAddress address for 0x01 withdrawal credentials from Beacon deposit data (1 for the batch)
    /// @param _ssvValidators list of pubkeys and SSV sharesData
    function _makeBeaconDeposits(
        DepositData calldata _depositData,
        address _withdrawalCredentialsAddress,
        SsvValidator[] calldata _ssvValidators
    ) private {
        uint256 validatorCount = _ssvValidators.length;

        if (msg.value != COLLATERAL * validatorCount) {
            revert P2pSsvProxyFactory__EthValueMustBe32TimesValidatorCount(msg.value);
        }

        if (_depositData.signatures.length != validatorCount || _depositData.depositDataRoots.length != validatorCount) {
            revert P2pSsvProxyFactory__DepositDataArraysShouldHaveTheSameLength(
                validatorCount,
                _depositData.signatures.length,
                _depositData.depositDataRoots.length
            );
        }

        for (uint256 i = 0; i < validatorCount;) {
            // ETH deposit
            bytes memory withdrawalCredentials = abi.encodePacked(
                hex'010000000000000000000000',
                _withdrawalCredentialsAddress
            );
            i_depositContract.deposit{value: COLLATERAL}(
                _ssvValidators[i].pubkey,
                withdrawalCredentials,
                _depositData.signatures[i],
                _depositData.depositDataRoots[i]
            );

            unchecked {++i;}
        }
    }

    /// @inheritdoc IOwnable
    function owner() public view override(Ownable, OwnableBase, IOwnable) returns (address) {
        return super.owner();
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function getFeeDistributorFactory() external view returns (address) {
        return address(i_feeDistributorFactory);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function getAllClientP2pSsvProxies(
        address _client
    ) external view returns (address[] memory) {
        return s_allClientP2pSsvProxies[_client];
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function getAllP2pSsvProxies() external view returns (address[] memory) {
        return s_allP2pSsvProxies;
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function isClientSelectorAllowed(bytes4 _selector) external view returns (bool) {
        return s_clientSelectors[_selector];
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function isOperatorSelectorAllowed(bytes4 _selector) external view returns (bool) {
        return s_operatorSelectors[_selector];
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function getAllowedSsvOperatorIds(address _ssvOperatorOwner) external view returns (uint64[MAX_ALLOWED_SSV_OPERATOR_IDS] memory) {
        return s_allowedSsvOperatorIds[_ssvOperatorOwner];
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function getAllowedSsvOperatorOwners() external view returns (address[] memory) {
        return s_allowedSsvOperatorOwners.values();
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function getReferenceFeeDistributor() external view returns (address) {
        return s_referenceFeeDistributor;
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function getReferenceP2pSsvProxy() external view returns (address) {
        return address(s_referenceP2pSsvProxy);
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function getSsvPerEthExchangeRateDividedByWei() external view returns (uint112) {
        return s_ssvPerEthExchangeRateDividedByWei;
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function getNeededAmountOfEtherToCoverSsvFees(uint256 _tokenAmount) external view returns (uint256) {
        return (_tokenAmount * s_ssvPerEthExchangeRateDividedByWei) / 10**18;
    }

    /// @inheritdoc IP2pSsvProxyFactory
    function getMaxSsvTokenAmountPerValidator() external view returns (uint112) {
        return s_maxSsvTokenAmountPerValidator;
    }

    /// @inheritdoc ERC165
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return interfaceId == type(IP2pSsvProxyFactory).interfaceId || super.supportsInterface(interfaceId);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/structs/EnumerableSet.sol)
// This file was procedurally generated from scripts/generate/templates/EnumerableSet.js.

pragma solidity 0.8.18;

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

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

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

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

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

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

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

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

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

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

            return true;
        } else {
            return false;
        }
    }

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

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

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

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

    // Bytes32Set

    struct Bytes32Set {
        Set _inner;
    }

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

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

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

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

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

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

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

        return result;
    }

    // AddressSet

    struct AddressSet {
        Set _inner;
    }

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

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

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

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

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

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

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

        return result;
    }

    // UintSet

    struct UintSet {
        Set _inner;
    }

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

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

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

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

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

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

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

        return result;
    }
}

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

pragma solidity 0.8.18;

/**
 * @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for
 * deploying minimal proxy contracts, also known as "clones".
 *
 * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies
 * > a minimal bytecode implementation that delegates all calls to a known, fixed address.
 *
 * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2`
 * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the
 * deterministic method.
 *
 * _Available since v3.4._
 */
library Clones {
    /**
     * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
     *
     * This function uses the create opcode, which should never revert.
     */
    function clone(address implementation) internal returns (address instance) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
            mstore(add(ptr, 0x14), shl(0x60, implementation))
            mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
            instance := create(0, ptr, 0x37)
        }
        require(instance != address(0), "ERC1167: create failed");
    }

    /**
     * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
     *
     * This function uses the create2 opcode and a `salt` to deterministically deploy
     * the clone. Using the same `implementation` and `salt` multiple time will revert, since
     * the clones cannot be deployed twice at the same address.
     */
    function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
            mstore(add(ptr, 0x14), shl(0x60, implementation))
            mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf30000000000000000000000000000000000)
            instance := create2(0, ptr, 0x37, salt)
        }
        require(instance != address(0), "ERC1167: create2 failed");
    }

    /**
     * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
     */
    function predictDeterministicAddress(
        address implementation,
        bytes32 salt,
        address deployer
    ) internal pure returns (address predicted) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000000000000000000000)
            mstore(add(ptr, 0x14), shl(0x60, implementation))
            mstore(add(ptr, 0x28), 0x5af43d82803e903d91602b57fd5bf3ff00000000000000000000000000000000)
            mstore(add(ptr, 0x38), shl(0x60, deployer))
            mstore(add(ptr, 0x4c), salt)
            mstore(add(ptr, 0x6c), keccak256(ptr, 0x37))
            predicted := keccak256(add(ptr, 0x37), 0x55)
        }
    }

    /**
     * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
     */
    function predictDeterministicAddress(address implementation, bytes32 salt)
        internal
        view
        returns (address predicted)
    {
        return predictDeterministicAddress(implementation, salt, address(this));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)

pragma solidity 0.8.18;

import "./IERC165.sol";

/**
 * @dev Implementation of the {IERC165} interface.
 *
 * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
 * for the additional interface id that will be supported. For example:
 *
 * ```solidity
 * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
 *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
 * }
 * ```
 *
 * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
 */
abstract contract ERC165 is IERC165 {
    /**
     * @dev See {IERC165-supportsInterface}.
     */
    function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
        return interfaceId == type(IERC165).interfaceId;
    }
}

// SPDX-License-Identifier: CC0-1.0

pragma solidity 0.8.18;

// This interface is designed to be compatible with the Vyper version.
/// @notice This is the Ethereum 2.0 deposit contract interface.
/// For more information see the Phase 0 specification under https://github.com/ethereum/eth2.0-specs
interface IDepositContract {

    /// @notice Submit a Phase 0 DepositData object.
    /// @param pubkey A BLS12-381 public key.
    /// @param withdrawal_credentials Commitment to a public key for withdrawals.
    /// @param signature A BLS12-381 signature.
    /// @param deposit_data_root The SHA-256 hash of the SSZ-encoded DepositData object.
    /// Used as a protection against malformed input.
    function deposit(
        bytes calldata pubkey,
        bytes calldata withdrawal_credentials,
        bytes calldata signature,
        bytes32 deposit_data_root
    ) external payable;
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "../../@openzeppelin/contracts/utils/introspection/IERC165.sol";
import "../../structs/P2pStructs.sol";

/// @dev External interface of FeeDistributor declared to support ERC165 detection.
interface IFeeDistributor is IERC165 {

    /// @notice Emits once the client and the optional referrer have been set.
    /// @param _client address of the client.
    /// @param _clientBasisPoints basis points (percent * 100) of EL rewards that should go to the client
    /// @param _referrer address of the referrer.
    /// @param _referrerBasisPoints basis points (percent * 100) of EL rewards that should go to the referrer
    event FeeDistributor__Initialized(
        address indexed _client,
        uint96 _clientBasisPoints,
        address indexed _referrer,
        uint96 _referrerBasisPoints
    );

    /// @notice Emits on successful withdrawal
    /// @param _serviceAmount how much wei service received
    /// @param _clientAmount how much wei client received
    /// @param _referrerAmount how much wei referrer received
    event FeeDistributor__Withdrawn(
        uint256 _serviceAmount,
        uint256 _clientAmount,
        uint256 _referrerAmount
    );

    /// @notice Emits on request for a voluntary exit of validators
    /// @param _pubkeys pubkeys of validators
    event FeeDistributor__VoluntaryExit(
        bytes[] _pubkeys
    );

    /// @notice Emits if case there was some ether left after `withdraw` and it has been sent successfully.
    /// @param _to destination address for ether.
    /// @param _amount how much wei the destination address received.
    event FeeDistributor__EtherRecovered(
        address indexed _to,
        uint256 _amount
    );

    /// @notice Set client address.
    /// @dev Could not be in the constructor since it is different for different clients.
    /// _referrerConfig can be zero if there is no referrer.
    /// @param _clientConfig address and basis points (percent * 100) of the client
    /// @param _referrerConfig address and basis points (percent * 100) of the referrer.
    function initialize(
        FeeRecipient calldata _clientConfig,
        FeeRecipient calldata _referrerConfig
    ) external;

    /// @notice Increase the number of deposited validators.
    /// @dev Should be called when a new ETH2 deposit has been made
    /// @param _validatorCountToAdd number of newly deposited validators
    function increaseDepositedCount(
        uint32 _validatorCountToAdd
    ) external;

    /// @notice Request a voluntary exit of validators
    /// @dev Should be called by the client when they want to signal P2P that certain validators need to be exited
    /// @param _pubkeys pubkeys of validators
    function voluntaryExit(
        bytes[] calldata _pubkeys
    ) external;

    /// @notice Returns the factory address
    /// @return address factory address
    function factory() external view returns (address);

    /// @notice Returns the service address
    /// @return address service address
    function service() external view returns (address);

    /// @notice Returns the client address
    /// @return address client address
    function client() external view returns (address);

    /// @notice Returns the client basis points
    /// @return uint256 client basis points
    function clientBasisPoints() external view returns (uint256);

    /// @notice Returns the referrer address
    /// @return address referrer address
    function referrer() external view returns (address);

    /// @notice Returns the referrer basis points
    /// @return uint256 referrer basis points
    function referrerBasisPoints() external view returns (uint256);

    /// @notice Returns the address for ETH2 0x01 withdrawal credentials associated with this FeeDistributor
    /// @dev Return FeeDistributor's own address if FeeDistributor should be CL rewards recipient
    /// Otherwise, return the client address
    /// @return address address for ETH2 0x01 withdrawal credentials
    function eth2WithdrawalCredentialsAddress() external view returns (address);
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "../../@openzeppelin/contracts/utils/introspection/IERC165.sol";
import "../../access/IOwnable.sol";
import "./IFeeDistributor.sol";
import "../../structs/P2pStructs.sol";

/// @dev External interface of FeeDistributorFactory
interface IFeeDistributorFactory is IOwnable, IERC165 {

    /// @notice Creates a FeeDistributor instance for a client
    /// @dev _referrerConfig can be zero if there is no referrer.
    ///
    /// @param _referenceFeeDistributor The address of the reference implementation of FeeDistributor used as the basis for clones
    /// @param _clientConfig address and basis points (percent * 100) of the client
    /// @param _referrerConfig address and basis points (percent * 100) of the referrer.
    /// @return newFeeDistributorAddress user FeeDistributor instance that has just been deployed
    function createFeeDistributor(
        address _referenceFeeDistributor,
        FeeRecipient calldata _clientConfig,
        FeeRecipient calldata _referrerConfig
    ) external returns (address newFeeDistributorAddress);

    /// @notice Computes the address of a FeeDistributor created by `createFeeDistributor` function
    /// @dev FeeDistributor instances are guaranteed to have the same address if all of
    /// 1) referenceFeeDistributor 2) clientConfig 3) referrerConfig
    /// are the same
    /// @param _referenceFeeDistributor The address of the reference implementation of FeeDistributor used as the basis for clones
    /// @param _clientConfig address and basis points (percent * 100) of the client
    /// @param _referrerConfig address and basis points (percent * 100) of the referrer.
    /// @return address user FeeDistributor instance that will be or has been deployed
    function predictFeeDistributorAddress(
        address _referenceFeeDistributor,
        FeeRecipient calldata _clientConfig,
        FeeRecipient calldata _referrerConfig
    ) external view returns (address);

    /// @notice Returns an array of client FeeDistributors
    /// @param _client client address
    /// @return address[] array of client FeeDistributors
    function allClientFeeDistributors(
        address _client
    ) external view returns (address[] memory);

    /// @notice Returns an array of all FeeDistributors for all clients
    /// @return address[] array of all FeeDistributors
    function allFeeDistributors() external view returns (address[] memory);

    /// @notice The address of P2pEth2Depositor
    /// @return address of P2pEth2Depositor
    function p2pEth2Depositor() external view returns (address);

    /// @notice Returns default client basis points
    /// @return default client basis points
    function defaultClientBasisPoints() external view returns (uint96);

    /// @notice Returns the current operator
    /// @return address of the current operator
    function operator() external view returns (address);

    /// @notice Reverts if the passed address is neither operator nor owner
    /// @param _address passed address
    function checkOperatorOrOwner(address _address) external view;

    /// @notice Reverts if the passed address is not P2pEth2Depositor
    /// @param _address passed address
    function checkP2pEth2Depositor(address _address) external view;

    /// @notice Reverts if the passed address is neither of: 1) operator 2) owner 3) P2pEth2Depositor
    /// @param _address passed address
    function check_Operator_Owner_P2pEth2Depositor(address _address) external view;
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.18;

/// @dev https://github.com/bloxapp/ssv-network/blob/8c945e82cc063eb8e40c467d314a470121821157/contracts/interfaces/ISSVViews.sol
interface ISSVViews {
    /// @notice Gets operator details by ID
    /// @param operatorId The ID of the operator
    /// @return owner The owner of the operator
    /// @return fee The fee associated with the operator (SSV)
    /// @return validatorCount The count of validators associated with the operator
    /// @return whitelisted The whitelisted address of the operator, if any
    /// @return isPrivate A boolean indicating if the operator is private
    /// @return active A boolean indicating if the operator is active
    function getOperatorById(uint64 operatorId) external view returns (address owner, uint256 fee, uint32 validatorCount, address whitelisted, bool isPrivate, bool active);
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>, Lido <[email protected]>
// SPDX-License-Identifier: MIT

// https://github.com/lidofinance/lido-otc-seller/blob/master/contracts/lib/AssetRecoverer.sol
pragma solidity 0.8.18;

import "./OwnableTokenRecoverer.sol";
import "./AssetRecoverer.sol";

/// @title Public Asset Recoverer with public functions callable by assetAccessingAddress
/// @notice Recover ether, ERC20, ERC721 and ERC1155 from a derived contract
abstract contract OwnableAssetRecoverer is OwnableTokenRecoverer, AssetRecoverer {

    // Functions

    /**
     * @notice transfers ether from this contract
     * @dev using `address.call` is safer to transfer to other contracts
     * @param _recipient address to transfer ether to
     * @param _amount amount of ether to transfer
     */
    function transferEther(address _recipient, uint256 _amount) external onlyOwner {
        _transferEther(_recipient, _amount);
    }
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "./Ownable2Step.sol";
import "./IOwnableWithOperator.sol";

/**
* @notice newOperator is the zero address
*/
error Access__ZeroNewOperator();

/**
* @notice newOperator is the same as the old one
*/
error Access__SameOperator(address _operator);

/**
* @notice caller is neither the operator nor owner
*/
error Access__CallerNeitherOperatorNorOwner(address _caller, address _operator, address _owner);

/**
* @notice address is neither the operator nor owner
*/
error Access__AddressNeitherOperatorNorOwner(address _address, address _operator, address _owner);

/**
 * @dev Ownable with an additional role of operator
 */
abstract contract OwnableWithOperator is Ownable2Step, IOwnableWithOperator {
    address private s_operator;

    /**
     * @dev Emits when the operator has been changed
     * @param _previousOperator address of the previous operator
     * @param _newOperator address of the new operator
     */
    event OperatorChanged(
        address indexed _previousOperator,
        address indexed _newOperator
    );

    /**
     * @dev Throws if called by any account other than the operator or the owner.
     */
    modifier onlyOperatorOrOwner() {
        address currentOwner = owner();
        address currentOperator = s_operator;

        if (currentOperator != _msgSender() && currentOwner != _msgSender()) {
            revert Access__CallerNeitherOperatorNorOwner(_msgSender(), currentOperator, currentOwner);
        }

        _;
    }

    function checkOperatorOrOwner(address _address) public view virtual {
        address currentOwner = owner();
        address currentOperator = s_operator;

        if (_address == address(0) || (currentOperator != _address && currentOwner != _address)) {
            revert Access__AddressNeitherOperatorNorOwner(_address, currentOperator, currentOwner);
        }
    }

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

    /**
     * @dev Transfers operator to a new account (`newOperator`).
     * Can only be called by the current owner.
     */
    function changeOperator(address _newOperator) external virtual onlyOwner {
        if (_newOperator == address(0)) {
            revert Access__ZeroNewOperator();
        }
        if (_newOperator == s_operator) {
            revert Access__SameOperator(_newOperator);
        }

        _changeOperator(_newOperator);
    }

    /**
     * @dev Transfers operator to a new account (`newOperator`).
     * Internal function without access restriction.
     */
    function _changeOperator(address _newOperator) internal virtual {
        address oldOperator = s_operator;
        s_operator = _newOperator;
        emit OperatorChanged(oldOperator, _newOperator);
    }

    /**
     * @dev Dismisses the old operator without setting a new one.
     * Can only be called by the current owner.
     */
    function dismissOperator() external virtual onlyOwner {
        _changeOperator(address(0));
    }
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "../@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "../@openzeppelin/contracts/utils/introspection/ERC165.sol";
import "../@openzeppelin/contracts/utils/introspection/ERC165Checker.sol";

import "../constants/P2pConstants.sol";
import "../interfaces/ssv/ISSVNetwork.sol";
import "../interfaces/IDepositContract.sol";
import "../interfaces/p2p/IFeeDistributorFactory.sol";
import "../access/OwnableWithOperator.sol";
import "../assetRecovering/OwnableAssetRecoverer.sol";
import "../structs/P2pStructs.sol";
import "../p2pSsvProxyFactory/IP2pSsvProxyFactory.sol";
import "./IP2pSsvProxy.sol";


/// @notice _referenceFeeDistributor should implement IFeeDistributor interface
/// @param _passedAddress passed address for _referenceFeeDistributor
error P2pSsvProxy__NotFeeDistributor(address _passedAddress);

/// @notice Should be a P2pSsvProxyFactory contract
/// @param _passedAddress passed address that does not support IP2pSsvProxyFactory interface
error P2pSsvProxy__NotP2pSsvProxyFactory(address _passedAddress);

/// @notice Throws if called by any account other than the client.
/// @param _caller address of the caller
/// @param _client address of the client
error P2pSsvProxy__CallerNotClient(address _caller, address _client);

/// @notice The caller was neither operator nor owner
/// @param _caller address of the caller
/// @param _operator address of the operator
/// @param _owner address of the owner
error P2pSsvProxy__CallerNeitherOperatorNorOwner(address _caller, address _operator, address _owner);

/// @notice The caller was neither operator nor owner nor client
/// @param _caller address of the caller
error P2pSsvProxy__CallerNeitherOperatorNorOwnerNorClient(address _caller);

/// @notice Only factory can call `initialize`.
/// @param _msgSender sender address.
/// @param _actualFactory the actual factory address that can call `initialize`.
error P2pSsvProxy__NotP2pSsvProxyFactoryCalled(address _msgSender, IP2pSsvProxyFactory _actualFactory);

/// @notice _pubkeys and _operatorIds arrays should have the same lengths
error P2pSsvProxy__AmountOfParametersError();

/// @notice Selector is not allowed for the caller.
/// @param _caller caller address
/// @param _selector function selector to be called on SSVNetwork
error P2pSsvProxy__SelectorNotAllowed(address _caller, bytes4 _selector);

/// @title Proxy for SSVNetwork calls.
/// @dev Each instance of P2pSsvProxy corresponds to 1 FeeDistributor instance.
/// Thus, client to P2pSsvProxy instances is a 1-to-many relation.
/// SSV tokens are managed by P2P.
/// Clients cover the costs of SSV tokens by EL rewards via FeeDistributor instance.
contract P2pSsvProxy is OwnableAssetRecoverer, ERC165, IP2pSsvProxy {

    /// @notice P2pSsvProxyFactory address
    IP2pSsvProxyFactory private immutable i_p2pSsvProxyFactory;

    /// @notice SSVNetwork address
    ISSVNetwork private immutable i_ssvNetwork;

    /// @notice SSV token (ERC-20) address
    IERC20 private immutable i_ssvToken;

    /// @notice FeeDistributor instance address
    IFeeDistributor private s_feeDistributor;

    /// @notice If caller is not client, revert
    modifier onlyClient() {
        address clientAddress = getClient();

        if (clientAddress != msg.sender) {
            revert P2pSsvProxy__CallerNotClient(msg.sender, clientAddress);
        }
        _;
    }

    /// @notice If caller is neither operator nor owner, revert
    modifier onlyOperatorOrOwner() {
        address currentOwner = owner();
        address currentOperator = operator();

        if (currentOperator != msg.sender && currentOwner != msg.sender) {
            revert P2pSsvProxy__CallerNeitherOperatorNorOwner(msg.sender, currentOperator, currentOwner);
        }

        _;
    }

    /// @notice If caller is neither operator nor owner nor client, revert
    modifier onlyOperatorOrOwnerOrClient() {
        address operator_ = operator();
        address owner_ = owner();
        address client_ = getClient();

        if (operator_ != msg.sender && owner_ != msg.sender && client_ != msg.sender) {
            revert P2pSsvProxy__CallerNeitherOperatorNorOwnerNorClient(msg.sender);
        }
        _;
    }

    /// @notice If caller is not factory, revert
    modifier onlyP2pSsvProxyFactory() {
        if (msg.sender != address(i_p2pSsvProxyFactory)) {
            revert P2pSsvProxy__NotP2pSsvProxyFactoryCalled(msg.sender, i_p2pSsvProxyFactory);
        }
        _;
    }

    /// @dev Set values that are constant, common for all clients, known at the initial deploy time.
    /// @param _p2pSsvProxyFactory address of P2pSsvProxyFactory
    constructor(
        address _p2pSsvProxyFactory
    ) {
        if (!ERC165Checker.supportsInterface(_p2pSsvProxyFactory, type(IP2pSsvProxyFactory).interfaceId)) {
            revert P2pSsvProxy__NotP2pSsvProxyFactory(_p2pSsvProxyFactory);
        }
        i_p2pSsvProxyFactory = IP2pSsvProxyFactory(_p2pSsvProxyFactory);

        i_ssvNetwork = (block.chainid == 1)
            ? ISSVNetwork(0xDD9BC35aE942eF0cFa76930954a156B3fF30a4E1)
            : (block.chainid == 5)
                ? ISSVNetwork(0xC3CD9A0aE89Fff83b71b58b6512D43F8a41f363D)
                : ISSVNetwork(0x38A4794cCEd47d3baf7370CcC43B560D3a1beEFA);

        i_ssvToken = (block.chainid == 1)
            ? IERC20(0x9D65fF81a3c488d585bBfb0Bfe3c7707c7917f54)
            : (block.chainid == 5)
                ? IERC20(0x3a9f01091C446bdE031E39ea8354647AFef091E7)
                : IERC20(0xad45A78180961079BFaeEe349704F411dfF947C6);
    }

    /// @inheritdoc IP2pSsvProxy
    function initialize(
        address _feeDistributor
    ) external onlyP2pSsvProxyFactory {
        s_feeDistributor = IFeeDistributor(_feeDistributor);

        i_ssvToken.approve(address(i_ssvNetwork), type(uint256).max);

        emit P2pSsvProxy__Initialized(_feeDistributor);
    }

    /// @dev Access any SSVNetwork function as cluster owner (this P2pSsvProxy instance)
    /// Each selector access is managed by P2pSsvProxyFactory roles (owner, operator, client)
    fallback() external {
        address caller = msg.sender;
        bytes4 selector = msg.sig;

        bool isAllowed = msg.sender == owner() ||
            (msg.sender == operator() && i_p2pSsvProxyFactory.isOperatorSelectorAllowed(selector)) ||
            (msg.sender == getClient() && i_p2pSsvProxyFactory.isClientSelectorAllowed(selector));

        if (!isAllowed) {
            revert P2pSsvProxy__SelectorNotAllowed(caller, selector);
        }

        (bool success, bytes memory data) = address(i_ssvNetwork).call(msg.data);
        if (success) {
            emit P2pSsvProxy__SuccessfullyCalledViaFallback(caller, selector);

            assembly {
                return(add(data, 0x20), mload(data))
            }
        } else {
            emit P2pSsvProxy__CallingViaFallbackFailed(caller, selector);

            // Decode the reason from the error data returned from the call and revert with it.
            revert(string(data));
        }
    }

    /// @inheritdoc IP2pSsvProxy
    function registerValidators(
        SsvPayload calldata _ssvPayload,
        address _feeDistributorInstance
    ) external onlyP2pSsvProxyFactory {
        (
            uint64[] memory operatorIds,
            uint64 clusterIndex
        ) = _getOperatorIdsAndClusterIndex(_ssvPayload.ssvOperators);

        uint256 ssvSlot0 = uint256(_ssvPayload.ssvSlot0);

        // see https://github.com/bloxapp/ssv-network/blob/1e61c35736578d4b03bacbff9da2128ad12a5620/contracts/libraries/ProtocolLib.sol#L15
        uint64 currentNetworkFeeIndex = uint64(ssvSlot0 >> 192) + uint64(block.number - uint32(ssvSlot0)) * uint64(ssvSlot0 >> 128);

        uint256 balance = _getBalance(_ssvPayload.cluster, clusterIndex, currentNetworkFeeIndex, _ssvPayload.tokenAmount);

        i_ssvNetwork.registerValidator(
            _ssvPayload.ssvValidators[0].pubkey,
            operatorIds,
            _ssvPayload.ssvValidators[0].sharesData,
            _ssvPayload.tokenAmount,
            _ssvPayload.cluster
        );

        for (uint256 i = 1; i < _ssvPayload.ssvValidators.length;) {
            _registerValidator(
                i,
                operatorIds,
                _ssvPayload.cluster,
                clusterIndex,
                _ssvPayload.ssvValidators[i].pubkey,
                _ssvPayload.ssvValidators[i].sharesData,
                currentNetworkFeeIndex,
                balance
            );

            unchecked {++i;}
        }

        i_ssvNetwork.setFeeRecipientAddress(_feeDistributorInstance);
    }

    /// @inheritdoc IP2pSsvProxy
    function removeValidators(
        bytes[] calldata _pubkeys,
        uint64[] calldata _operatorIds,
        ISSVNetwork.Cluster[] calldata _clusters
    ) external onlyOperatorOrOwnerOrClient {
        uint256 validatorCount = _pubkeys.length;

        if (!(
            _clusters.length == validatorCount
        )) {
            revert P2pSsvProxy__AmountOfParametersError();
        }

        for (uint256 i = 0; i < validatorCount;) {
            i_ssvNetwork.removeValidator(_pubkeys[i], _operatorIds, _clusters[i]);

            unchecked {++i;}
        }
    }

    /// @inheritdoc IP2pSsvProxy
    function liquidate(
        uint64[] calldata _operatorIds,
        ISSVNetwork.Cluster[] calldata _clusters
    ) external onlyOperatorOrOwner {
        address clusterOwner = address(this);
        uint256 validatorCount = _clusters.length;

        for (uint256 i = 0; i < validatorCount;) {
            i_ssvNetwork.liquidate(clusterOwner, _operatorIds, _clusters[i]);

            unchecked {++i;}
        }
    }

    /// @inheritdoc IP2pSsvProxy
    function reactivate(
        uint256 _tokenAmount,
        uint64[] calldata _operatorIds,
        ISSVNetwork.Cluster[] calldata _clusters
    ) external onlyOperatorOrOwner {
        uint256 tokenPerValidator = _tokenAmount / _clusters.length;
        uint256 validatorCount = _clusters.length;

        for (uint256 i = 0; i < validatorCount;) {
            i_ssvNetwork.reactivate(_operatorIds, tokenPerValidator, _clusters[i]);

            unchecked {++i;}
        }
    }

    /// @inheritdoc IP2pSsvProxy
    function depositToSSV(
        uint256 _tokenAmount,
        uint64[] calldata _operatorIds,
        ISSVNetwork.Cluster[] calldata _clusters
    ) external {
        address clusterOwner = address(this);
        uint256 validatorCount = _clusters.length;
        uint256 tokenPerValidator = _tokenAmount / validatorCount;

        for (uint256 i = 0; i < validatorCount;) {
            i_ssvNetwork.deposit(clusterOwner, _operatorIds, tokenPerValidator, _clusters[i]);

            unchecked {++i;}
        }
    }

    /// @inheritdoc IP2pSsvProxy
    function withdrawFromSSV(
        uint256 _tokenAmount,
        uint64[] calldata _operatorIds,
        ISSVNetwork.Cluster[] calldata _clusters
    ) external onlyOperatorOrOwner {
        uint256 tokenPerValidator = _tokenAmount / _clusters.length;
        uint256 validatorCount = _clusters.length;

        for (uint256 i = 0; i < validatorCount;) {
            i_ssvNetwork.withdraw(_operatorIds, tokenPerValidator, _clusters[i]);

            unchecked {++i;}
        }
    }

    /// @inheritdoc IP2pSsvProxy
    function withdrawSSVTokens(
        address _to,
        uint256 _amount
    ) external onlyOwner {
        i_ssvToken.transfer(_to, _amount);
    }

    /// @inheritdoc IP2pSsvProxy
    function setFeeRecipientAddress(
        address _feeRecipientAddress
    ) external onlyOperatorOrOwner {
        i_ssvNetwork.setFeeRecipientAddress(_feeRecipientAddress);
    }

    /// @notice Extract operatorIds and clusterIndex out of SsvOperator list
    /// @param _ssvOperators list of SSV operator data
    /// @return operatorIds list of SSV operator IDs, clusterIndex updated cluster index
    function _getOperatorIdsAndClusterIndex(
        SsvOperator[] calldata _ssvOperators
    ) private view returns(
        uint64[] memory operatorIds,
        uint64 clusterIndex
    ) {
        // clusterIndex updating logic reflects
        // https://github.com/bloxapp/ssv-network/blob/fe3b9b178344dd723b19792d01ab5010dfd2dcf9/contracts/modules/SSVClusters.sol#L77

        clusterIndex = 0;
        uint256 operatorCount = _ssvOperators.length;
        operatorIds = new uint64[](operatorCount);
        for (uint256 i = 0; i < operatorCount;) {
            operatorIds[i] = _ssvOperators[i].id;

            uint256 snapshot = uint256(_ssvOperators[i].snapshot);

            // see https://github.com/bloxapp/ssv-network/blob/6ae5903a5c99c8d75b59fc0d35574d87f82e5861/contracts/libraries/OperatorLib.sol#L13
            clusterIndex += uint64(snapshot >> 32) + (uint32(block.number) - uint32(snapshot)) * uint64(_ssvOperators[i].fee / 10_000_000);

            unchecked {++i;}
        }
    }

    /// @notice Calculate the balance for the subsequent cluster values in a batch
    /// @param _cluster cluster value before the 1st validator registration
    /// @param _newIndex clusterIndex value after the 1st validator registration
    /// @param _currentNetworkFeeIndex currentNetworkFeeIndex from ssvSlot0
    /// @param _tokenAmount amount of SSV tokens deposited along with the 1st validator registration
    /// @return balance updated balance after the 1st validator registration
    function _getBalance(
        ISSVNetwork.Cluster calldata _cluster,
        uint64 _newIndex,
        uint64 _currentNetworkFeeIndex,
        uint256 _tokenAmount
    ) private pure returns(uint256 balance) {
        uint256 balanceBefore = _cluster.balance + _tokenAmount;

        // see https://github.com/bloxapp/ssv-network/blob/1e61c35736578d4b03bacbff9da2128ad12a5620/contracts/libraries/ClusterLib.sol#L16
        uint64 networkFee = uint64(_currentNetworkFeeIndex - _cluster.networkFeeIndex) * _cluster.validatorCount;
        uint64 usage = (_newIndex - _cluster.index) * _cluster.validatorCount + networkFee;
        uint256 expandedUsage = usage * 10_000_000;
        balance = expandedUsage > balanceBefore? 0 : balanceBefore - expandedUsage;
    }

    /// @notice Register subsequent validators after the 1st one
    /// @param i validator index in calldata
    /// @param _operatorIds list of SSV operator IDs
    /// @param _cluster cluster value before the 1st registration
    /// @param _clusterIndex calculated clusterIndex after the 1st registration
    /// @param _pubkey validator pubkey
    /// @param _sharesData validator SSV sharesData
    /// @param _currentNetworkFeeIndex currentNetworkFeeIndex from ssvSlot0
    /// @param _balance cluster balance after the 1st validator registration
    function _registerValidator(
        uint256 i,
        uint64[] memory _operatorIds,
        ISSVNetwork.Cluster calldata _cluster,
        uint64 _clusterIndex,
        bytes calldata _pubkey,
        bytes calldata _sharesData,
        uint64 _currentNetworkFeeIndex,
        uint256 _balance
    ) private {
        ISSVClusters.Cluster memory cluster = ISSVClusters.Cluster({
            validatorCount: uint32(_cluster.validatorCount + i),
            networkFeeIndex: _currentNetworkFeeIndex,
            index: _clusterIndex,
            active: true,
            balance: _balance
        });

        i_ssvNetwork.registerValidator(
            _pubkey,
            _operatorIds,
            _sharesData,
            0,
            cluster
        );
    }

    /// @inheritdoc IP2pSsvProxy
    function getClient() public view returns (address) {
        return s_feeDistributor.client();
    }

    /// @inheritdoc IP2pSsvProxy
    function getFactory() external view returns (address) {
        return address(i_p2pSsvProxyFactory);
    }

    /// @inheritdoc IOwnable
    function owner() public view override(OwnableBase, IOwnable) returns (address) {
        return i_p2pSsvProxyFactory.owner();
    }

    /// @inheritdoc IOwnableWithOperator
    function operator() public view returns (address) {
        return i_p2pSsvProxyFactory.operator();
    }

    /// @inheritdoc IP2pSsvProxy
    function getFeeDistributor() external view returns (address) {
        return address(s_feeDistributor);
    }

    /// @inheritdoc ERC165
    function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
        return interfaceId == type(IP2pSsvProxy).interfaceId || super.supportsInterface(interfaceId);
    }
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "../interfaces/ssv/ISSVClusters.sol";

/// @dev 256 bit struct
/// @member basisPoints basis points (percent * 100) of EL rewards that should go to the recipient
/// @member recipient address of the recipient
struct FeeRecipient {
    uint96 basisPoints;
    address payable recipient;
}

/// @member pubkey The public key of the new validator
/// @member sharesData Encrypted shares related to the new validator
struct SsvValidator {
    bytes pubkey;
    bytes sharesData;
}

/// @member signatures BLS12-381 signatures
/// @member depositDataRoots SHA-256 hashes of the SSZ-encoded DepositData objects
struct DepositData {
    bytes[] signatures;
    bytes32[] depositDataRoots;
}

/// @dev Data from https://github.com/bloxapp/ssv-network/blob/8c945e82cc063eb8e40c467d314a470121821157/contracts/interfaces/ISSVNetworkCore.sol#L20
/// @member owner SSV operator owner
/// @member id SSV operator ID
/// @member snapshot SSV operator snapshot (should be retrieved from SSVNetwork storage)
/// @member fee SSV operator fee
struct SsvOperator {
    address owner;
    uint64 id;
    bytes32 snapshot;
    uint256 fee;
}

/// @member ssvOperators SSV operators for the cluster
/// @member ssvValidators new SSV validators to be registered in the cluster
/// @member cluster SSV cluster
/// @member tokenAmount amount of ERC-20 SSV tokens for validator registration
/// @member ssvSlot0 Slot # (uint256(keccak256("ssv.network.storage.protocol")) - 1) from SSVNetwork
struct SsvPayload {
    SsvOperator[] ssvOperators;
    SsvValidator[] ssvValidators;
    ISSVClusters.Cluster cluster;
    uint256 tokenAmount;
    bytes32 ssvSlot0;
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "../@openzeppelin/contracts/utils/introspection/IERC165.sol";
import "../structs/P2pStructs.sol";
import "../constants/P2pConstants.sol";
import "../interfaces/ssv/ISSVNetwork.sol";
import "../access/IOwnableWithOperator.sol";

/// @dev External interface of P2pSsvProxyFactory
interface IP2pSsvProxyFactory is IOwnableWithOperator, IERC165 {

    /// @notice Emits when batch registration of validator with SSV is completed
    /// @param _proxy address of P2pSsvProxy that was used for registration and became the cluster owner
    event P2pSsvProxyFactory__RegistrationCompleted(
        address indexed _proxy
    );

    /// @notice Emits when a new P2pSsvProxy instance was deployed and initialized
    /// @param _p2pSsvProxy newly deployed P2pSsvProxy instance address
    /// @param _client client address
    /// @param _feeDistributor FeeDistributor instance address
    event P2pSsvProxyFactory__P2pSsvProxyCreated(
        address indexed _p2pSsvProxy,
        address indexed _client,
        address indexed _feeDistributor
    );

    /// @notice Emits when a new reference FeeDistributor has been set
    /// @param _referenceFeeDistributor new reference FeeDistributor address
    event P2pSsvProxyFactory__ReferenceFeeDistributorSet(
        address indexed _referenceFeeDistributor
    );

    /// @notice Emits when a new value for ssvPerEthExchangeRateDividedByWei has been set
    /// @param _ssvPerEthExchangeRateDividedByWei new value for ssvPerEthExchangeRateDividedByWei
    event P2pSsvProxyFactory__SsvPerEthExchangeRateDividedByWeiSet(
        uint112 _ssvPerEthExchangeRateDividedByWei
    );

    /// @notice Emits when a new value for maximum amount of SSV tokens per validator has been set
    /// @param _maxSsvTokenAmountPerValidator new value for maximum amount of SSV tokens per validator
    event P2pSsvProxyFactory__MaxSsvTokenAmountPerValidatorSet(
        uint112 _maxSsvTokenAmountPerValidator
    );

    /// @notice Emits when a new reference P2pSsvProxy has been set
    /// @param _referenceP2pSsvProxy new reference P2pSsvProxy address
    event P2pSsvProxyFactory__ReferenceP2pSsvProxySet(
        address indexed _referenceP2pSsvProxy
    );

    /// @notice Emits when new selectors were allowed for clients
    /// @param _selectors newly allowed selectors
    event P2pSsvProxyFactory__AllowedSelectorsForClientSet(
        bytes4[] _selectors
    );

    /// @notice Emits when new selectors were allowed for operator
    /// @param _selectors newly allowed selectors
    event P2pSsvProxyFactory__AllowedSelectorsForOperatorSet(
        bytes4[] _selectors
    );

    /// @notice Emits when new SSV operator owner addresses have been allowed
    /// @param _allowedSsvOperatorOwners newly allowed SSV operator owner addresses
    event P2pSsvProxyFactory__AllowedSsvOperatorOwnersSet(
        address[] _allowedSsvOperatorOwners
    );

    /// @notice Emits when some SSV operator owner addresses have been removed from the allowlist
    /// @param _allowedSsvOperatorOwners disallowed SSV operator owner addresses
    event P2pSsvProxyFactory__AllowedSsvOperatorOwnersRemoved(
        address[] _allowedSsvOperatorOwners
    );

    /// @notice Emits when new SSV operator IDs have been set to the given SSV operator owner
    /// @param _ssvOperatorOwner SSV operator owner
    event P2pSsvProxyFactory__SsvOperatorIdsSet(
        address indexed _ssvOperatorOwner,
        uint64[MAX_ALLOWED_SSV_OPERATOR_IDS] _operatorIds
    );

    /// @notice Emits when operator IDs list has been cleared for the given SSV operator owner
    /// @param _ssvOperatorOwner SSV operator owner
    event P2pSsvProxyFactory__SsvOperatorIdsCleared(
        address indexed _ssvOperatorOwner
    );

    /// @notice Set Exchange rate between SSV and ETH set by P2P.
    /// @dev (If 1 SSV = 0.007539 ETH, it should be 0.007539 * 10^18 = 7539000000000000).
    /// @param _ssvPerEthExchangeRateDividedByWei Exchange rate
    function setSsvPerEthExchangeRateDividedByWei(uint112 _ssvPerEthExchangeRateDividedByWei) external;

    /// @notice Set Maximum amount of SSV tokens per validator that is allowed for client to deposit during `depositEthAndRegisterValidators`
    /// @param _maxSsvTokenAmountPerValidator Maximum amount of SSV tokens per validator
    function setMaxSsvTokenAmountPerValidator(uint112 _maxSsvTokenAmountPerValidator) external;

    /// @notice Set template to be used for new P2pSsvProxy instances
    /// @param _referenceP2pSsvProxy template to be used for new P2pSsvProxy instances
    function setReferenceP2pSsvProxy(address _referenceP2pSsvProxy) external;

    /// @notice Allow selectors (function signatures) for clients to call on SSVNetwork via P2pSsvProxy
    /// @param _selectors selectors (function signatures) to allow for clients
    function setAllowedSelectorsForClient(bytes4[] calldata _selectors) external;

    /// @notice Allow selectors (function signatures) for P2P operator to call on SSVNetwork via P2pSsvProxy
    /// @param _selectors selectors (function signatures) to allow for P2P operator
    function setAllowedSelectorsForOperator(bytes4[] calldata _selectors) external;

    /// @notice Set template to be used for new FeeDistributor instances
    /// @param _referenceFeeDistributor template to be used for new FeeDistributor instances
    function setReferenceFeeDistributor(
        address _referenceFeeDistributor
    ) external;

    /// @notice Allow addresses of SSV operator owners (both P2P and partners)
    /// @param _allowedSsvOperatorOwners addresses of SSV operator owners to allow
    function setAllowedSsvOperatorOwners(
        address[] calldata _allowedSsvOperatorOwners
    ) external;

    /// @notice Disallow addresses of SSV operator owners (both P2P and partners)
    /// @param _allowedSsvOperatorOwnersToRemove addresses of SSV operator owners to disallow
    function removeAllowedSsvOperatorOwners(
        address[] calldata _allowedSsvOperatorOwnersToRemove
    ) external;

    /// @notice Set own SSV operator IDs list
    /// @dev To be called by SSV operator owner
    /// @param _operatorIds SSV operator IDs list
    function setSsvOperatorIds(
        uint64[MAX_ALLOWED_SSV_OPERATOR_IDS] calldata _operatorIds
    ) external;

    /// @notice Set SSV operator IDs list for a SSV operator owner
    /// @dev To be called by P2P
    /// @param _operatorIds SSV operator IDs list
    /// @param _ssvOperatorOwner SSV operator owner
    function setSsvOperatorIds(
        uint64[MAX_ALLOWED_SSV_OPERATOR_IDS] calldata _operatorIds,
        address _ssvOperatorOwner
    ) external;

    /// @notice Clear own SSV operator IDs list
    /// @dev To be called by SSV operator owner
    function clearSsvOperatorIds() external;

    /// @notice Clear SSV operator IDs list for a SSV operator owner
    /// @dev To be called by P2P
    /// @param _ssvOperatorOwner SSV operator owner
    function clearSsvOperatorIds(
        address _ssvOperatorOwner
    ) external;

    /// @notice Computes the address of a P2pSsvProxy created by `_createP2pSsvProxy` function
    /// @dev P2pSsvProxy instances are guaranteed to have the same address if _feeDistributorInstance is the same
    /// @param _feeDistributorInstance The address of FeeDistributor instance
    /// @return address client P2pSsvProxy instance that will be or has been deployed
    function predictP2pSsvProxyAddress(
        address _feeDistributorInstance
    ) external view returns (address);

    /// @notice Deploy P2pSsvProxy instance if not deployed before
    /// @param _feeDistributorInstance The address of FeeDistributor instance
    /// @return p2pSsvProxyInstance client P2pSsvProxy instance that has been deployed
    function createP2pSsvProxy(
        address _feeDistributorInstance
    ) external returns(address p2pSsvProxyInstance);

    /// @notice Batch deposit ETH and register validators with SSV (up to 50, calldata size is the limit)
    /// @param _depositData signatures and depositDataRoots from Beacon deposit data
    /// @param _withdrawalCredentialsAddress address for 0x01 withdrawal credentials from Beacon deposit data (1 for the batch)
    /// @param _ssvPayload a stuct with data necessary for SSV registration (see `SsvPayload` struct for details)
    /// @param _clientConfig address and basis points (percent * 100) of the client (for FeeDistributor)
    /// @param _referrerConfig address and basis points (percent * 100) of the referrer (for FeeDistributor)
    /// @return p2pSsvProxy client P2pSsvProxy instance that became the SSV cluster owner
    function depositEthAndRegisterValidators(
        DepositData calldata _depositData,
        address _withdrawalCredentialsAddress,

        SsvPayload calldata _ssvPayload,

        FeeRecipient calldata _clientConfig,
        FeeRecipient calldata _referrerConfig
    ) external payable returns (address p2pSsvProxy);

    /// @notice Register validators with SSV (up to 60, calldata size is the limit) without ETH deposits
    /// @param _ssvPayload a stuct with data necessary for SSV registration (see `SsvPayload` struct for details)
    /// @param _clientConfig address and basis points (percent * 100) of the client (for FeeDistributor)
    /// @param _referrerConfig address and basis points (percent * 100) of the referrer (for FeeDistributor)
    /// @return p2pSsvProxy client P2pSsvProxy instance that became the SSV cluster owner
    function registerValidators(
        SsvPayload calldata _ssvPayload,
        FeeRecipient calldata _clientConfig,
        FeeRecipient calldata _referrerConfig
    ) external payable returns (address p2pSsvProxy);

    /// @notice Returns the FeeDistributorFactory address
    /// @return FeeDistributorFactory address
    function getFeeDistributorFactory() external view returns (address);

    /// @notice A list of addresses of the deployed client P2pSsvProxy instances by client address
    /// @param _client client address
    /// @return A list of addresses of the deployed client P2pSsvProxy instances
    function getAllClientP2pSsvProxies(
        address _client
    ) external view returns (address[] memory);

    /// @notice Returns a list of all ever deployed client P2pSsvProxy instances
    /// @return a list of all ever deployed client P2pSsvProxy instances
    function getAllP2pSsvProxies() external view returns (address[] memory);

    /// @notice Returns if a certain selector (function signature) is allowed for clients to call on SSVNetwork via P2pSsvProxy
    /// @return True if allowed
    function isClientSelectorAllowed(bytes4 _selector) external view returns (bool);

    /// @notice Returns if a certain selector (function signature) is allowed for a P2P operator to call on SSVNetwork via P2pSsvProxy
    /// @param _selector selector (function signature)
    /// @return True if allowed
    function isOperatorSelectorAllowed(bytes4 _selector) external view returns (bool);

    /// @notice Returns SSV operator IDs list by operator owner address
    /// @param _ssvOperatorOwner operator owner address
    /// @return SSV operator IDs list
    function getAllowedSsvOperatorIds(address _ssvOperatorOwner) external view returns (uint64[MAX_ALLOWED_SSV_OPERATOR_IDS] memory);

    /// @notice Returns a set of addresses of SSV operator owners (both P2P and partners)
    /// @return a set of addresses of SSV operator owners (both P2P and partners)
    function getAllowedSsvOperatorOwners() external view returns (address[] memory);

    /// @notice Returns a template set by P2P to be used for new FeeDistributor instances
    /// @return a template set by P2P to be used for new FeeDistributor instances
    function getReferenceFeeDistributor() external view returns (address);

    /// @notice Returns a template set by P2P to be used for new P2pSsvProxy instances
    /// @return a template set by P2P to be used for new P2pSsvProxy instances
    function getReferenceP2pSsvProxy() external view returns (address);

    /// @notice Returns exchange rate between SSV and ETH set by P2P
    /// @dev (If 1 SSV = 0.007539 ETH, it should be 0.007539 * 10^18 = 7539000000000000).
    /// Only used during validator registration without ETH deposits to cover SSV token costs with client ETH.
    /// SSV tokens exchanged with this rate cannot be withdrawn by the client.
    /// P2P is willing to tolarate potential discrepancies with the market exchange rate for the sake of simplicity.
    /// The client agrees to this rate when calls `registerValidators` function.
    /// @return exchange rate between SSV and ETH set by P2P
    function getSsvPerEthExchangeRateDividedByWei() external view returns (uint112);

    /// @notice Returns the maximum amount of SSV tokens per validator that is allowed for client to deposit during `depositEthAndRegisterValidators`
    /// @return maximum amount of SSV tokens per validator
    function getMaxSsvTokenAmountPerValidator() external view returns (uint112);

    /// @notice Returns needed amount of ETH to cover SSV fees by SSV token amount
    /// @param _tokenAmount SSV token amount
    /// @return needed amount of ETH to cover SSV fees
    function getNeededAmountOfEtherToCoverSsvFees(uint256 _tokenAmount) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity 0.8.18;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * 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[EIP 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);
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

/**
 * @dev External interface of Ownable.
 */
interface IOwnable {
    /**
     * @dev Returns the address of the current owner.
     */
    function owner() external view returns (address);
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>, Lido <[email protected]>
// SPDX-License-Identifier: MIT

// https://github.com/lidofinance/lido-otc-seller/blob/master/contracts/lib/AssetRecoverer.sol
pragma solidity 0.8.18;

import "./TokenRecoverer.sol";
import "../access/OwnableBase.sol";

/// @title Token Recoverer with public functions callable by assetAccessingAddress
/// @notice Recover ERC20, ERC721 and ERC1155 from a derived contract
abstract contract OwnableTokenRecoverer is TokenRecoverer, OwnableBase {
    // Functions

    /**
     * @notice transfer an ERC20 token from this contract
     * @dev `SafeERC20.safeTransfer` doesn't always return a bool
     * as it performs an internal `require` check
     * @param _token address of the ERC20 token
     * @param _recipient address to transfer the tokens to
     * @param _amount amount of tokens to transfer
     */
    function transferERC20(
        address _token,
        address _recipient,
        uint256 _amount
    ) external onlyOwner {
        _transferERC20(_token, _recipient, _amount);
    }

    /**
     * @notice transfer an ERC721 token from this contract
     * @dev `IERC721.safeTransferFrom` doesn't always return a bool
     * as it performs an internal `require` check
     * @param _token address of the ERC721 token
     * @param _recipient address to transfer the token to
     * @param _tokenId id of the individual token
     */
    function transferERC721(
        address _token,
        address _recipient,
        uint256 _tokenId
    ) external onlyOwner {
        _transferERC721(_token, _recipient, _tokenId);
    }

    /**
     * @notice transfer an ERC1155 token from this contract
     * @dev see `AssetRecoverer`
     * @param _token address of the ERC1155 token that is being recovered
     * @param _recipient address to transfer the token to
     * @param _tokenId id of the individual token to transfer
     * @param _amount amount of tokens to transfer
     * @param _data data to transfer along
     */
    function transferERC1155(
        address _token,
        address _recipient,
        uint256 _tokenId,
        uint256 _amount,
        bytes calldata _data
    ) external onlyOwner {
        _transferERC1155(_token, _recipient, _tokenId, _amount, _data);
    }
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>, Lido <[email protected]>
// SPDX-License-Identifier: MIT

// https://github.com/lidofinance/lido-otc-seller/blob/master/contracts/lib/AssetRecoverer.sol
pragma solidity 0.8.18;

import "./TokenRecoverer.sol";

/**
* @notice could not transfer ether
* @param _recipient address to transfer ether to
* @param _amount amount of ether to transfer
*/
error AssetRecoverer__TransferFailed(address _recipient, uint256 _amount);


/// @title Asset Recoverer
/// @notice Recover ether, ERC20, ERC721 and ERC1155 from a derived contract
abstract contract AssetRecoverer is TokenRecoverer {
    event EtherTransferred(address indexed _recipient, uint256 _amount);

    /**
     * @notice transfers ether from this contract
     * @dev using `address.call` is safer to transfer to other contracts
     * @param _recipient address to transfer ether to
     * @param _amount amount of ether to transfer
     */
    function _transferEther(address _recipient, uint256 _amount) internal virtual burnDisallowed(_recipient) {
        (bool success, ) = _recipient.call{value: _amount}("");
        if (!success) {
            revert AssetRecoverer__TransferFailed(_recipient, _amount);
        }
        emit EtherTransferred(_recipient, _amount);
    }
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>, OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "./Ownable.sol";

/**
* @notice caller must be pendingOwner
*/
error Ownable2Step__CallerNotNewOwner();

/**
* @notice new owner address should be different from the current owner
*/
error Ownable2Step__NewOwnerShouldNotBeCurrentOwner();

/**
 * @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 s_pendingOwner;

    /**
     * @dev Emits in transferOwnership (start of the transfer)
     * @param _previousOwner address of the previous owner
     * @param _newOwner address of the new owner
     */
    event OwnershipTransferStarted(address indexed _previousOwner, address indexed _newOwner);

    /**
     * @dev Returns the address of the pending owner.
     */
    function pendingOwner() public view virtual returns (address) {
        return s_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 {
        address currentOwner = owner();
        if (newOwner == currentOwner) {
            revert Ownable2Step__NewOwnerShouldNotBeCurrentOwner();
        }

        s_pendingOwner = newOwner;
        emit OwnershipTransferStarted(currentOwner, 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 s_pendingOwner;
        super._transferOwnership(newOwner);
    }

    /**
     * @dev The new owner accepts the ownership transfer.
     */
    function acceptOwnership() external {
        address sender = _msgSender();
        if (pendingOwner() != sender) {
            revert Ownable2Step__CallerNotNewOwner();
        }
        _transferOwnership(sender);
    }
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "./IOwnable.sol";

/**
 * @dev Ownable with an additional role of operator
 */
interface IOwnableWithOperator is IOwnable {
    /**
     * @dev Returns the current operator.
     */
    function operator() external view returns (address);
}

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

pragma solidity 0.8.18;

/**
 * @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 (last updated v4.7.2) (utils/introspection/ERC165Checker.sol)

pragma solidity 0.8.18;

import "./IERC165.sol";

/**
 * @dev Library used to query support of an interface declared via {IERC165}.
 *
 * Note that these functions return the actual result of the query: they do not
 * `revert` if an interface is not supported. It is up to the caller to decide
 * what to do in these cases.
 */
library ERC165Checker {
    // As per the EIP-165 spec, no interface should ever match 0xffffffff
    bytes4 private constant _INTERFACE_ID_INVALID = 0xffffffff;

    /**
     * @dev Returns true if `account` supports the {IERC165} interface,
     */
    function supportsERC165(address account) internal view returns (bool) {
        // Any contract that implements ERC165 must explicitly indicate support of
        // InterfaceId_ERC165 and explicitly indicate non-support of InterfaceId_Invalid
        return
            _supportsERC165Interface(account, type(IERC165).interfaceId) &&
            !_supportsERC165Interface(account, _INTERFACE_ID_INVALID);
    }

    /**
     * @dev Returns true if `account` supports the interface defined by
     * `interfaceId`. Support for {IERC165} itself is queried automatically.
     *
     * See {IERC165-supportsInterface}.
     */
    function supportsInterface(address account, bytes4 interfaceId) internal view returns (bool) {
        // query support of both ERC165 as per the spec and support of _interfaceId
        return supportsERC165(account) && _supportsERC165Interface(account, interfaceId);
    }

    /**
     * @dev Returns a boolean array where each value corresponds to the
     * interfaces passed in and whether they're supported or not. This allows
     * you to batch check interfaces for a contract where your expectation
     * is that some interfaces may not be supported.
     *
     * See {IERC165-supportsInterface}.
     *
     * _Available since v3.4._
     */
    function getSupportedInterfaces(address account, bytes4[] memory interfaceIds)
        internal
        view
        returns (bool[] memory)
    {
        // an array of booleans corresponding to interfaceIds and whether they're supported or not
        bool[] memory interfaceIdsSupported = new bool[](interfaceIds.length);

        // query support of ERC165 itself
        if (supportsERC165(account)) {
            // query support of each interface in interfaceIds
            for (uint256 i = 0; i < interfaceIds.length; i++) {
                interfaceIdsSupported[i] = _supportsERC165Interface(account, interfaceIds[i]);
            }
        }

        return interfaceIdsSupported;
    }

    /**
     * @dev Returns true if `account` supports all the interfaces defined in
     * `interfaceIds`. Support for {IERC165} itself is queried automatically.
     *
     * Batch-querying can lead to gas savings by skipping repeated checks for
     * {IERC165} support.
     *
     * See {IERC165-supportsInterface}.
     */
    function supportsAllInterfaces(address account, bytes4[] memory interfaceIds) internal view returns (bool) {
        // query support of ERC165 itself
        if (!supportsERC165(account)) {
            return false;
        }

        // query support of each interface in _interfaceIds
        for (uint256 i = 0; i < interfaceIds.length; i++) {
            if (!_supportsERC165Interface(account, interfaceIds[i])) {
                return false;
            }
        }

        // all interfaces supported
        return true;
    }

    /**
     * @notice Query if a contract implements an interface, does not check ERC165 support
     * @param account The address of the contract to query for support of an interface
     * @param interfaceId The interface identifier, as specified in ERC-165
     * @return true if the contract at account indicates support of the interface with
     * identifier interfaceId, false otherwise
     * @dev Assumes that account contains a contract that supports ERC165, otherwise
     * the behavior of this method is undefined. This precondition can be checked
     * with {supportsERC165}.
     * Interface identification is specified in ERC-165.
     */
    function _supportsERC165Interface(address account, bytes4 interfaceId) private view returns (bool) {
        // prepare call
        bytes memory encodedParams = abi.encodeWithSelector(IERC165.supportsInterface.selector, interfaceId);

        // perform static call
        bool success;
        uint256 returnSize;
        uint256 returnValue;
        assembly {
            success := staticcall(30000, account, add(encodedParams, 0x20), mload(encodedParams), 0x00, 0x20)
            returnSize := returndatasize()
            returnValue := mload(0x00)
        }

        return success && returnSize >= 0x20 && returnValue > 0;
    }
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

/// @dev Collateral size of 1 validator
uint256 constant COLLATERAL = 32 ether;

/// @dev Maximum number of SSV operator IDs per SSV operator owner address supported simultaniously by P2pSsvProxyFactory
uint256 constant MAX_ALLOWED_SSV_OPERATOR_IDS = 8;

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.18;
import "./ISSVClusters.sol";

/// @dev https://github.com/bloxapp/ssv-network/blob/8c945e82cc063eb8e40c467d314a470121821157/contracts/interfaces/ISSVNetwork.sol
interface ISSVNetwork is ISSVClusters {
    function setFeeRecipientAddress(address feeRecipientAddress) external;
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "../@openzeppelin/contracts/utils/introspection/IERC165.sol";
import "../structs/P2pStructs.sol";
import "../access/IOwnableWithOperator.sol";
import "../interfaces/ssv/ISSVNetwork.sol";

/// @dev External interface of P2pSsvProxy declared to support ERC165 detection.
interface IP2pSsvProxy is IOwnableWithOperator, IERC165 {

    /// @notice Emits when P2pSsvProxy instance is initialized
    /// @param _feeDistributor FeeDistributor instance that determines the identity of this P2pSsvProxy instance
    event P2pSsvProxy__Initialized(
        address indexed _feeDistributor
    );

    /// @notice Emits when the function was called successfully on SSVNetwork via fallback
    /// @param _caller caller of P2pSsvProxy
    /// @param _selector selector of the function from SSVNetwork
    event P2pSsvProxy__SuccessfullyCalledViaFallback(
        address indexed _caller,
        bytes4 indexed _selector
    );

    /// @notice Emits when an error occurred during the call of SSVNetwork via fallback
    /// @param _caller caller of P2pSsvProxy
    /// @param _selector selector of the function from SSVNetwork
    event P2pSsvProxy__CallingViaFallbackFailed(
        address indexed _caller,
        bytes4 indexed _selector
    );

    /// @notice Initialize the P2pSsvProxy instance
    /// @dev Should only be called by P2pSsvProxyFactory
    /// @param _feeDistributor FeeDistributor instance that determines the identity of this P2pSsvProxy instance
    function initialize(
        address _feeDistributor
    ) external;

    /// @notice Register a batch of validators with SSV
    /// @dev Should be called by P2pSsvProxyFactory only
    /// @param _ssvPayload struct with the SSV data required for registration
    /// @param _feeDistributorInstance instance of FeeDistributor to be used as EL fee recipient in SSV
    function registerValidators(
        SsvPayload calldata _ssvPayload,
        address _feeDistributorInstance
    ) external;

    /// @notice Remove a batch of validators from SSV
    /// @dev Can be called either by P2P or by the client
    /// @param _pubkeys validator pubkeys
    /// @param _operatorIds SSV operator IDs
    /// @param _clusters SSV clusters, each of which should correspond to pubkey and operator IDs
    function removeValidators(
        bytes[] calldata _pubkeys,
        uint64[] calldata _operatorIds,
        ISSVNetwork.Cluster[] calldata _clusters
    ) external;

    /// @notice Liquidate SSV clusters
    /// @dev Should be called by P2P only.
    /// This function is just batching calls for convenience. It's always possible to call the same function on SSVNetwork via fallback
    /// @param _operatorIds SSV operator IDs
    /// @param _clusters SSV clusters
    function liquidate(
        uint64[] calldata _operatorIds,
        ISSVNetwork.Cluster[] calldata _clusters
    ) external;

    /// @notice Reactivate SSV clusters
    /// @dev Should be called by P2P only
    /// This function is just batching calls for convenience. It's always possible to call the same function on SSVNetwork via fallback
    /// @param _tokenAmount SSV token amount to be deposited for reactivation
    /// @param _operatorIds SSV operator IDs
    /// @param _clusters SSV clusters
    function reactivate(
        uint256 _tokenAmount,
        uint64[] calldata _operatorIds,
        ISSVNetwork.Cluster[] calldata _clusters
    ) external;

    /// @notice Deposit SSV tokens to SSV clusters
    /// @dev Can be called by anyone
    /// This function is just batching calls for convenience. It's possible to call the same function on SSVNetwork directly
    /// @param _tokenAmount SSV token amount to be deposited
    /// @param _operatorIds SSV operator IDs
    /// @param _clusters SSV clusters
    function depositToSSV(
        uint256 _tokenAmount,
        uint64[] calldata _operatorIds,
        ISSVNetwork.Cluster[] calldata _clusters
    ) external;

    /// @notice Withdraw SSV tokens from SSV clusters to this contract
    /// @dev Should be called by P2P only
    /// This function is just batching calls for convenience. It's always possible to call the same function on SSVNetwork via fallback
    /// @param _tokenAmount SSV token amount to be withdrawn
    /// @param _operatorIds SSV operator IDs
    /// @param _clusters SSV clusters
    function withdrawFromSSV(
        uint256 _tokenAmount,
        uint64[] calldata _operatorIds,
        ISSVNetwork.Cluster[] calldata _clusters
    ) external;

    /// @notice Withdraw SSV tokens from this contract to the given address
    /// @dev Should be called by P2P only
    /// @param _to destination address
    /// @param _amount SSV token amount to be withdrawn
    function withdrawSSVTokens(
        address _to,
        uint256 _amount
    ) external;

    /// @notice Set a new fee recipient address for this contract (cluster owner)
    /// @dev Should be called by P2P only.
    /// Another FeeDistributor instance can become the fee recipient (e.g. if service percentages change).
    /// Client address itself can become the fee recipient (e.g. if service percentage becomes zero due to some promo).
    /// It's fine for P2P to determine the fee recipient since P2P is paying SSV tokens and EL rewards are a way to compansate for them.
    /// Other operators are compansated via SSV tokens paid by P2P.
    /// @param _feeRecipientAddress fee recipient address to set
    function setFeeRecipientAddress(
        address _feeRecipientAddress
    ) external;

    /// @notice Returns the client address
    /// @return address client address
    function getClient() external view returns (address);

    /// @notice Returns the factory address
    /// @return address factory address
    function getFactory() external view returns (address);

    /// @notice Returns the address of FeeDistributor instance accociated with this contract
    /// @return FeeDistributor instance address
    function getFeeDistributor() external view returns (address);
}

// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity 0.8.18;

/// @dev https://github.com/bloxapp/ssv-network/blob/8c945e82cc063eb8e40c467d314a470121821157/contracts/interfaces/ISSVNetworkCore.sol
interface ISSVClusters {
    /// @notice Represents a cluster of validators
    struct Cluster {
        /// @dev The number of validators in the cluster
        uint32 validatorCount;
        /// @dev The index of network fees related to this cluster
        uint64 networkFeeIndex;
        /// @dev The last index calculated for the cluster
        uint64 index;
        /// @dev Flag indicating whether the cluster is active
        bool active;
        /// @dev The balance of the cluster
        uint256 balance;
    }


    /// @notice Registers a new validator on the SSV Network
    /// @param publicKey The public key of the new validator
    /// @param operatorIds Array of IDs of operators managing this validator
    /// @param sharesData Encrypted shares related to the new validator
    /// @param amount Amount of SSV tokens to be deposited
    /// @param cluster Cluster to be used with the new validator
    function registerValidator(
        bytes calldata publicKey,
        uint64[] memory operatorIds,
        bytes calldata sharesData,
        uint256 amount,
        Cluster memory cluster
    ) external;

    /// @notice Removes an existing validator from the SSV Network
    /// @param publicKey The public key of the validator to be removed
    /// @param operatorIds Array of IDs of operators managing the validator
    /// @param cluster Cluster associated with the validator
    function removeValidator(bytes calldata publicKey, uint64[] memory operatorIds, Cluster memory cluster) external;

    /**************************/
    /* Cluster External Functions */
    /**************************/

    /// @notice Liquidates a cluster
    /// @param owner The owner of the cluster
    /// @param operatorIds Array of IDs of operators managing the cluster
    /// @param cluster Cluster to be liquidated
    function liquidate(address owner, uint64[] memory operatorIds, Cluster memory cluster) external;

    /// @notice Reactivates a cluster
    /// @param operatorIds Array of IDs of operators managing the cluster
    /// @param amount Amount of SSV tokens to be deposited for reactivation
    /// @param cluster Cluster to be reactivated
    function reactivate(uint64[] memory operatorIds, uint256 amount, Cluster memory cluster) external;

    /******************************/
    /* Balance External Functions */
    /******************************/

    /// @notice Deposits tokens into a cluster
    /// @param owner The owner of the cluster
    /// @param operatorIds Array of IDs of operators managing the cluster
    /// @param amount Amount of SSV tokens to be deposited
    /// @param cluster Cluster where the deposit will be made
    function deposit(address owner, uint64[] memory operatorIds, uint256 amount, Cluster memory cluster) external;

    /// @notice Withdraws tokens from a cluster
    /// @param operatorIds Array of IDs of operators managing the cluster
    /// @param tokenAmount Amount of SSV tokens to be withdrawn
    /// @param cluster Cluster where the withdrawal will be made
    function withdraw(uint64[] memory operatorIds, uint256 tokenAmount, Cluster memory cluster) external;

    /**
     * @dev Emitted when the validator has been added.
     * @param publicKey The public key of a validator.
     * @param operatorIds The operator ids list.
     * @param shares snappy compressed shares(a set of encrypted and public shares).
     * @param cluster All the cluster data.
     */
    event ValidatorAdded(address indexed owner, uint64[] operatorIds, bytes publicKey, bytes shares, Cluster cluster);

    /**
     * @dev Emitted when the validator is removed.
     * @param publicKey The public key of a validator.
     * @param operatorIds The operator ids list.
     * @param cluster All the cluster data.
     */
    event ValidatorRemoved(address indexed owner, uint64[] operatorIds, bytes publicKey, Cluster cluster);

    event ClusterLiquidated(address indexed owner, uint64[] operatorIds, Cluster cluster);

    event ClusterReactivated(address indexed owner, uint64[] operatorIds, Cluster cluster);

    event ClusterWithdrawn(address indexed owner, uint64[] operatorIds, uint256 value, Cluster cluster);

    event ClusterDeposited(address indexed owner, uint64[] operatorIds, uint256 value, Cluster cluster);
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>, Lido <[email protected]>
// SPDX-License-Identifier: MIT

// https://github.com/lidofinance/lido-otc-seller/blob/master/contracts/lib/AssetRecoverer.sol
pragma solidity 0.8.18;

import {IERC20} from "../@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {IERC721} from "../@openzeppelin/contracts/token/ERC721/IERC721.sol";
import {IERC1155} from "../@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import {SafeERC20} from "../@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

/**
* @notice prevents burn for transfer functions
* @dev _recipient should not be a zero address
*/
error TokenRecoverer__NoBurn();


/// @title Token Recoverer
/// @notice Recover ERC20, ERC721 and ERC1155 from a derived contract
abstract contract TokenRecoverer {
    using SafeERC20 for IERC20;

    event ERC20Transferred(address indexed _token, address indexed _recipient, uint256 _amount);
    event ERC721Transferred(address indexed _token, address indexed _recipient, uint256 _tokenId);
    event ERC1155Transferred(address indexed _token, address indexed _recipient, uint256 _tokenId, uint256 _amount, bytes _data);

    /**
     * @notice prevents burn for transfer functions
     * @dev checks for zero address and reverts if true
     * @param _recipient address of the transfer recipient
     */
    modifier burnDisallowed(address _recipient) {
        if (_recipient == address(0)) {
            revert TokenRecoverer__NoBurn();
        }
        _;
    }

    /**
     * @notice transfer an ERC20 token from this contract
     * @dev `SafeERC20.safeTransfer` doesn't always return a bool
     * as it performs an internal `require` check
     * @param _token address of the ERC20 token
     * @param _recipient address to transfer the tokens to
     * @param _amount amount of tokens to transfer
     */
    function _transferERC20(
        address _token,
        address _recipient,
        uint256 _amount
    ) internal virtual burnDisallowed(_recipient) {
        IERC20(_token).safeTransfer(_recipient, _amount);
        emit ERC20Transferred(_token, _recipient, _amount);
    }

    /**
     * @notice transfer an ERC721 token from this contract
     * @dev `IERC721.safeTransferFrom` doesn't always return a bool
     * as it performs an internal `require` check
     * @param _token address of the ERC721 token
     * @param _recipient address to transfer the token to
     * @param _tokenId id of the individual token
     */
    function _transferERC721(
        address _token,
        address _recipient,
        uint256 _tokenId
    ) internal virtual burnDisallowed(_recipient) {
        IERC721(_token).transferFrom(address(this), _recipient, _tokenId);
        emit ERC721Transferred(_token, _recipient, _tokenId);
    }

    /**
     * @notice transfer an ERC1155 token from this contract
     * @dev `IERC1155.safeTransferFrom` doesn't always return a bool
     * as it performs an internal `require` check
     * @param _token address of the ERC1155 token that is being recovered
     * @param _recipient address to transfer the token to
     * @param _tokenId id of the individual token to transfer
     * @param _amount amount of tokens to transfer
     * @param _data data to transfer along
     */
    function _transferERC1155(
        address _token,
        address _recipient,
        uint256 _tokenId,
        uint256 _amount,
        bytes calldata _data
    ) internal virtual burnDisallowed(_recipient) {
        IERC1155(_token).safeTransferFrom(address(this), _recipient, _tokenId, _amount, _data);
        emit ERC1155Transferred(_token, _recipient, _tokenId, _amount, _data);
    }
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "../@openzeppelin/contracts/utils/Context.sol";
import "./IOwnable.sol";

/**
* @notice Throws if called by any account other than the owner.
* @param _caller address of the caller
* @param _owner address of the owner
*/
error OwnableBase__CallerNotOwner(address _caller, address _owner);

/**
 * @dev minimalistic version of OpenZeppelin's Ownable.
 * The owner is abstract and is not persisted in storage.
 * Needs to be overridden in a child contract.
 */
abstract contract OwnableBase is Context, IOwnable {

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        address caller = _msgSender();
        address currentOwner = owner();

        if (currentOwner != caller) {
            revert OwnableBase__CallerNotOwner(caller, currentOwner);
        }
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     * Needs to be overridden in a child contract.
     */
    function owner() public view virtual override returns (address);
}

// SPDX-FileCopyrightText: 2023 P2P Validator <[email protected]>, OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
// SPDX-License-Identifier: MIT

pragma solidity 0.8.18;

import "./OwnableBase.sol";

/**
* @notice _newOwner cannot be a zero address
*/
error Ownable__NewOwnerIsZeroAddress();

/**
 * @dev OpenZeppelin's Ownable with modifier onlyOwner extracted to OwnableBase
 * and removed `renounceOwnership`
 */
abstract contract Ownable is OwnableBase {

    /**
     * @dev Emits when the owner has been changed.
     * @param _previousOwner address of the previous owner
     * @param _newOwner address of the new owner
     */
    event OwnershipTransferred(address indexed _previousOwner, address indexed _newOwner);

    address private s_owner;

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/IERC721.sol)

pragma solidity 0.8.18;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId,
        bytes calldata data
    ) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address from,
        address to,
        uint256 tokenId
    ) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool _approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)

pragma solidity 0.8.18;

import "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC1155 compliant contract, as defined in the
 * https://eips.ethereum.org/EIPS/eip-1155[EIP].
 *
 * _Available since v3.1._
 */
interface IERC1155 is IERC165 {
    /**
     * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
     */
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);

    /**
     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
     * transfers.
     */
    event TransferBatch(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256[] ids,
        uint256[] values
    );

    /**
     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
     * `approved`.
     */
    event ApprovalForAll(address indexed account, address indexed operator, bool approved);

    /**
     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
     *
     * If an {URI} event was emitted for `id`, the standard
     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
     * returned by {IERC1155MetadataURI-uri}.
     */
    event URI(string value, uint256 indexed id);

    /**
     * @dev Returns the amount of tokens of token type `id` owned by `account`.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) external view returns (uint256);

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
        external
        view
        returns (uint256[] memory);

    /**
     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
     *
     * Emits an {ApprovalForAll} event.
     *
     * Requirements:
     *
     * - `operator` cannot be the caller.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address account, address operator) external view returns (bool);

    /**
     * @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
     * - `from` must have a balance of tokens of type `id` of at least `amount`.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function safeTransferFrom(
        address from,
        address to,
        uint256 id,
        uint256 amount,
        bytes calldata data
    ) external;

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
     *
     * Emits a {TransferBatch} event.
     *
     * Requirements:
     *
     * - `ids` and `amounts` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata amounts,
        bytes calldata data
    ) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity 0.8.18;

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

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

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

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

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

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

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

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

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

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

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

pragma solidity 0.8.18;

/**
 * @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;
    }
}

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

pragma solidity 0.8.18;

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

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

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

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

pragma solidity 0.8.18;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCall(target, data, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                /// @solidity memory-safe-assembly
                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

{
  "remappings": [
    "ds-test/=lib/forge-std/lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "paris",
  "libraries": {}
}

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000000000000000000000000b7c5d2e55c64d508c8927efd37df8a1db8431b440000000000000000000000003ab5252b37425842b9f253821e946fc5d24a2ce4

-----Decoded View---------------
Arg [0] : _feeDistributorFactory (address): 0xB7C5d2e55c64D508C8927EFD37DF8a1db8431B44
Arg [1] : _referenceFeeDistributor (address): 0x3AB5252B37425842B9f253821e946Fc5d24A2cE4

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 000000000000000000000000b7c5d2e55c64d508c8927efd37df8a1db8431b44
Arg [1] : 0000000000000000000000003ab5252b37425842b9f253821e946fc5d24a2ce4