// File: @openzeppelin/contracts/access/Ownable.sol



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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

// File: @openzeppelin/contracts/security/ReentrancyGuard.sol



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

pragma solidity ^0.8.0;

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

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

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

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

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

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

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

// File: @openzeppelin/contracts/utils/Address.sol



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

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

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

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

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

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

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

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

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

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// File: @openzeppelin/contracts/utils/Context.sol



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

pragma solidity ^0.8.0;

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

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

// File: contracts/contracts-BatchDepositWithELRVault/ELRewardVault.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "./interfaces/IELRewardVault.sol";

contract ELRewardVault is IELRewardVault, Ownable, ReentrancyGuard {
    /// @dev Commission fee receiver address
    address public commissionReceiver;

    /// @dev Operator address
    address public operatorPartOne;

    /// @dev Operator address
    address public operatorPartTwo;

    /// @dev Calculate commission fee rate
    uint256 public constant basePct = 10000;
    uint256 public commissionPct;

    /// @dev Maximum users` info that can be processed in a single distributeReward、submitELRewardInfo、updateELRewardInfo transaction
    uint256 public maxLimit;

    /// @dev Users` withdraw request id
    uint256 public nextRequestId;
    
    /// @dev ID of the next pending order info
    uint256 public nextDistributeId;

    /// @dev Operators` signature status
    mapping(address => bool) public signStatus;

    /// @dev Users` ELReward info
    mapping(uint256 => userInfo) public ELRewardInfo;

    constructor(
        address _commissionReceiver, 
        address _operatorPartOne, 
        address _operatorPartTwo, 
        uint256 _commissionPct, 
        uint256 _maxLimit
        ) payable {
        if(address(_operatorPartOne) == address(_operatorPartTwo)) revert RepeatSetup();
        commissionReceiver = _commissionReceiver;
        operatorPartOne = _operatorPartOne;
        operatorPartTwo = _operatorPartTwo;
        commissionPct = _commissionPct;
        maxLimit = _maxLimit;
    }

    modifier onlyOperator() {
        if(msg.sender != operatorPartOne && msg.sender != operatorPartTwo) revert NotOperator();
        _;
    }

    /// @dev Update commission percentage
    /// @param _newCommissionPct New commission percentage
    function updateCommissionPct(uint256 _newCommissionPct) external onlyOwner {
        if(_newCommissionPct == commissionPct ) revert RepeatSetup();
        if(_newCommissionPct > basePct) revert InvalidFeePoint();
        initSignStatus();
        commissionPct = _newCommissionPct;
        emit UpdateCommissionPct(_newCommissionPct);
    }

    /// @dev Update commission receiver address
    /// @param _newCommissionReceiver New commission receiver address
    function updateCommissionReceiver(address _newCommissionReceiver) external onlyOwner {
        if(address(_newCommissionReceiver) == address(0)) revert ZeroValueSet();
        if(_newCommissionReceiver == commissionReceiver) revert RepeatSetup();
        initSignStatus();
        commissionReceiver = _newCommissionReceiver;
        emit UpdateCommissionReceiver(_newCommissionReceiver);
    }

    /// @dev Update operatorPartOne
    /// @param _newOperatorPartOne New operatorPartOne address
    function updateOperatorPartOne(address _newOperatorPartOne) external onlyOwner {
        if(address(_newOperatorPartOne) == address(0)) revert ZeroValueSet();
        if(_newOperatorPartOne == operatorPartOne) revert RepeatSetup();
        if(_newOperatorPartOne == operatorPartTwo) revert InvalidRoleSet();
        initSignStatus();
        operatorPartOne = _newOperatorPartOne;
        emit UpdateOperatorPartOne(_newOperatorPartOne);
    }

    /// @dev Update operatorPartTwo
    /// @param _newOperatorPartTwo New operatorPartTwo address
    function updateOperatorPartTwo(address _newOperatorPartTwo) external onlyOwner {
        if(address(_newOperatorPartTwo) == address(0)) revert ZeroValueSet();
        if(_newOperatorPartTwo == operatorPartTwo) revert RepeatSetup();
        if(_newOperatorPartTwo == operatorPartOne) revert InvalidRoleSet();
        initSignStatus();
        operatorPartTwo = _newOperatorPartTwo;
        emit UpdateOperatorPartTwo(_newOperatorPartTwo);
    }

    /// @dev Update maxLimit
    /// @param _newMaxLimit New maxLimit
    function updateMaxLimit(uint256 _newMaxLimit) external onlyOwner {
        if(_newMaxLimit == 0) revert ZeroValueSet();
        if(_newMaxLimit == maxLimit) revert RepeatSetup();
        initSignStatus();
        maxLimit = _newMaxLimit;
        emit UpdateMaxLimit(_newMaxLimit);
    }

    /// @dev Submit users` ELReward info
    /// @param usersInfo Users` ELReward info
    /// @param replace bool value
    /// replace value is false: submit users` ELReward info
    /// replace value is true: correct users` historical ELReward info and set nextId to new index
    function submitELRewardInfo(userInfo[] calldata usersInfo, bool replace) external onlyOperator {
        if(usersInfo.length > maxLimit) revert OverMaxLimit();
        if(replace) {
            if(nextRequestId == 0) revert EmptyELRewardInfo();
            nextDistributeId = nextRequestId;
        }
        for(uint256 i = 0; i < usersInfo.length; ) {
            ELRewardInfo[nextRequestId] = usersInfo[i];
            unchecked {
                nextRequestId++;
                ++i;
            }
        }
        emit SubmitELRewardInfo(msg.sender, usersInfo, nextDistributeId);
    }

    /// @dev distribute users` EL reward
    function distributeReward() external onlyOperator {  
        if(signStatus[msg.sender]) revert NotSignTwice();
        if(nextRequestId == nextDistributeId) revert EmptyELRewardInfo();
        address executor = msg.sender == operatorPartOne ? operatorPartTwo : operatorPartOne;
        if(signStatus[executor]) {
            uint256 currentMaxLimit = maxLimit + nextDistributeId;
            while(nextDistributeId < nextRequestId && nextDistributeId < currentMaxLimit) {
                _distributeReward(ELRewardInfo[nextDistributeId].withdrawAddress, ELRewardInfo[nextDistributeId].ELReward);
                nextDistributeId++;
            }
            delete signStatus[executor];
            emit ExecTransaction(msg.sender, nextDistributeId);
        } else {
            signStatus[msg.sender] = true;
            emit SignTransaction(msg.sender, signStatus[msg.sender]);
        }
    }

    /// @dev Migrate ETH to a new EL reward vault contract when current contract is suspended
    /// @param newELRewardVault New ELRewardVault contract address
    function migrateFund(address newELRewardVault) external onlyOwner {
        if(address(newELRewardVault) == address(0)) revert ZeroValueSet(); 
        uint256 currentBalance = address(this).balance;
        if(currentBalance == 0) revert NotFund(); 
        Address.sendValue(payable(newELRewardVault), currentBalance);
        emit MigrateFund(msg.sender, newELRewardVault, currentBalance);
    }

    /// @dev distribute user's EL reward
    function _distributeReward(address _userAddress, uint256 _ELReward) internal nonReentrant {
        if(_ELReward > address(this).balance) revert RewardTooLarge();

        uint256 commissionFee = _ELReward * commissionPct / basePct;
        Address.sendValue(payable(_userAddress), (_ELReward - commissionFee));
        emit UserRewardDistributed(_userAddress, (_ELReward - commissionFee));
        Address.sendValue(payable(commissionReceiver), commissionFee);
        emit CommissionFeeTransferred(commissionReceiver, commissionFee);
    }

    function initSignStatus() internal {
        if(signStatus[operatorPartOne]){
            delete signStatus[operatorPartOne]; 
            emit InitSignStatus(operatorPartOne, signStatus[operatorPartOne]);
        } 
        if(signStatus[operatorPartTwo]) { 
            delete signStatus[operatorPartTwo]; 
            emit InitSignStatus(operatorPartTwo, signStatus[operatorPartTwo]);
        }
    }

    receive() external payable {}
}
// File: contracts/contracts-BatchDepositWithELRVault/interfaces/IELRewardVault.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.13;

interface IELRewardVault {
    /// @notice Thrown when over limit
    error OverMaxLimit();

    /// @notice Thrown when update operatorPartOne or operatorPartTwo
    error InvalidRoleSet();

    /// @notice Thrown when a function is called by an address that is not the current operator
    error NotOperator();

    /// @notice Thrown when zero value is set 
    error ZeroValueSet();

    /// @notice Thrown when values are set repeatedly
    error RepeatSetup();

    /// @notice Thrown when update fee point but new fee point over base point
    error InvalidFeePoint();

    /// @notice Each user's EL reward must be less than the contract ETH balance
    error RewardTooLarge();

    /// @notice Thrown when operator want sign same transaction 
    error NotSignTwice();

    /// @notice Thrown when migrate fund if valid fun is zero
    error NotFund();

    /// @notice Thrown when update users` ELReward info but requestId is zero
    error EmptyELRewardInfo();

    /// @notice Emitted when a new commissionPct is updated
    /// @param newCommissionPct New commissionPct
    event UpdateCommissionPct(uint256 newCommissionPct);

    /// @notice Emitted when a new commission receiver address is updated
    /// @param newCommissionReceiver New commission receiver address
    event UpdateCommissionReceiver(address newCommissionReceiver);

    /// @notice Emitted when a new operatorPartOne address is updated
    /// @param newOperatorPartOne New OperatorPartOne
    event UpdateOperatorPartOne(address newOperatorPartOne);

    /// @notice Emitted when a new operatorPartTwo address is updated
    /// @param newOperatorPartTwo New OperatorPartTwo
    event UpdateOperatorPartTwo(address newOperatorPartTwo);

    /// @notice Emitted when a new maxLimit threshold is updated
    /// @param newMaxLimit New maxLimit
    event UpdateMaxLimit(uint256 newMaxLimit);

    /// @notice Emitted when submit users` ELReward info
    event SubmitELRewardInfo(address operatorAddress, userInfo[] usersInfo, uint256 currentNextId);

    /// @notice Emitted when one of operator send distributeReward transaction
    event SignTransaction(address signerAddress, bool signStatus);

    /// @notice Emitted when another operator confirm distributeReward transaction
    event ExecTransaction(address execAddress, uint256 currentNextId);

    /// @notice Emitted when distribute users reward
    /// @param userAddress User's address
    /// @param ETHAmount User's ETH reward
    event UserRewardDistributed(address userAddress, uint256 ETHAmount);

    /// @notice Emitted when users claim their reward
    /// @param commissionReceiver commission fee receiver address
    /// @param ETHAmount ETH paid by the users
    event CommissionFeeTransferred(address commissionReceiver, uint256 ETHAmount);

    /// @notice Emitted when contract owner mi
    event MigrateFund(address senderAddress, address toAddress,uint256 migrateETHAmount);

    /// @notice Emitted when init operator sign status
    event InitSignStatus(address operatorAddr, bool signStatus);

    struct userInfo {
        address withdrawAddress;
        uint256 ELReward;
    }
}