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/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |  DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0  |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
  *  decentralised, trustless and compatible with staking in Ethereum 2.0.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

// SPDX-License-Identifier: GPL-3.0-only
pragma solidity 0.8.18;
pragma abicoder v2;

import "../RocketBase.sol";
import "../../interface/RocketVaultInterface.sol";
import "../../interface/rewards/RocketRewardsPoolInterface.sol";
import "../../interface/rewards/claims/RocketClaimDAOInterface.sol";

/// @notice Recipient of pDAO RPL from inflation. Performs treasury spends and handles recurring payments.
contract RocketClaimDAO is RocketBase, RocketClaimDAOInterface {

    // Offsets into storage for contract details
    uint256 constant internal existsOffset = 0;
    uint256 constant internal recipientOffset = 1;
    uint256 constant internal amountOffset = 2;
    uint256 constant internal periodLengthOffset = 3;
    uint256 constant internal lastPaymentOffset = 4;
    uint256 constant internal numPeriodsOffset = 5;
    uint256 constant internal periodsPaidOffset = 6;

    // Events
    event RPLTokensSentByDAOProtocol(string indexed invoiceID, address indexed from, address indexed to, uint256 amount, uint256 time);
    event RPLTreasuryContractPayment(string indexed contractName, address indexed recipient, uint256 amount, uint256 time);
    event RPLTreasuryContractClaimed(address indexed recipient, uint256 amount, uint256 time);
    event RPLTreasuryContractCreated(string indexed contractName, address indexed recipient, uint256 amountPerPeriod, uint256 startTime, uint256 periodLength, uint256 numPeriods);
    event RPLTreasuryContractUpdated(string indexed contractName, address indexed recipient, uint256 amountPerPeriod, uint256 periodLength, uint256 numPeriods);

    constructor(RocketStorageInterface _rocketStorageAddress) RocketBase(_rocketStorageAddress) {
        version = 3;
    }

    /// @notice Returns whether a contract with the given name exists
    /// @param _contractName Name of the contract to check existence of
    function getContractExists(string calldata _contractName) external view returns (bool) {
        uint256 contractKey = uint256(keccak256(abi.encodePacked("dao.protocol.treasury.contract", _contractName)));
        return getBool(bytes32(contractKey + existsOffset));
    }

    /// @notice Gets details about a given payment contract
    /// @param _contractName Name of the contract to retrieve details for
    function getContract(string calldata _contractName) override external view returns (PaymentContract memory) {
        // Compute key
        uint256 contractKey = uint256(keccak256(abi.encodePacked("dao.protocol.treasury.contract", _contractName)));
        // Retrieve details
        PaymentContract memory paymentContract;
        paymentContract.recipient = getAddress(bytes32(contractKey + recipientOffset));
        paymentContract.amountPerPeriod = getUint(bytes32(contractKey + amountOffset));
        paymentContract.periodLength = getUint(bytes32(contractKey + periodLengthOffset));
        paymentContract.lastPaymentTime = getUint(bytes32(contractKey + lastPaymentOffset));
        paymentContract.numPeriods = getUint(bytes32(contractKey + numPeriodsOffset));
        paymentContract.periodsPaid = getUint(bytes32(contractKey + periodsPaidOffset));
        return paymentContract;
    }

    /// @notice Gets the outstanding balance owed to a given recipient
    /// @param _recipientAddress The address of the recipient to return the balance of
    function getBalance(address _recipientAddress) override external view returns (uint256) {
        return getUint(keccak256(abi.encodePacked("dao.protocol.treasury.balance", _recipientAddress)));
    }

    /// @notice Spend the network DAOs RPL rewards
    /// @param _invoiceID A string used to identify this payment (not used internally)
    /// @param _recipientAddress The address to send the RPL spend to
    /// @param _amount The amount of RPL to send
    function spend(string memory _invoiceID, address _recipientAddress, uint256 _amount) override external onlyLatestContract("rocketDAOProtocolProposals", msg.sender) onlyLatestContract("rocketClaimDAO", address(this)) {
        // Load contracts
        RocketVaultInterface rocketVault = RocketVaultInterface(getContractAddress("rocketVault"));
        // Addresses
        IERC20 rplToken = IERC20(getContractAddress("rocketTokenRPL"));
        // Some initial checks
        require(_amount > 0 && _amount <= rocketVault.balanceOfToken("rocketClaimDAO", rplToken), "You cannot send 0 RPL or more than the DAO has in its account");
        // Send now
        rocketVault.withdrawToken(_recipientAddress, rplToken, _amount);
        // Log it
        emit RPLTokensSentByDAOProtocol(_invoiceID, address(this), _recipientAddress, _amount, block.timestamp);
    }

    /// @notice Creates a new recurring payment contract
    /// @param _contractName A string used to identify this payment
    /// @param _recipientAddress The address which can claim against this recurring payment
    /// @param _amountPerPeriod The amount of RPL that can be claimed each period
    /// @param _periodLength The length (in seconds) of periods of this contract
    /// @param _startTime A unix timestamp of when payments begin
    /// @param _numPeriods The number of periods this contract pays out for
    function newContract(string memory _contractName, address _recipientAddress, uint256 _amountPerPeriod, uint256 _periodLength, uint256 _startTime, uint256 _numPeriods) override external onlyLatestContract("rocketDAOProtocolProposals", msg.sender) onlyLatestContract("rocketClaimDAO", address(this)) {
        uint256 contractKey = uint256(keccak256(abi.encodePacked("dao.protocol.treasury.contract", _contractName)));
        // Ensure contract name uniqueness
        require(getBool(bytes32(contractKey + existsOffset)) == false, "Contract already exists");
        // Write to storage
        setBool(bytes32(contractKey + existsOffset), true);
        setAddress(bytes32(contractKey + recipientOffset), _recipientAddress);
        setUint(bytes32(contractKey + amountOffset), _amountPerPeriod);
        setUint(bytes32(contractKey + periodLengthOffset), _periodLength);
        setUint(bytes32(contractKey + lastPaymentOffset), _startTime);
        setUint(bytes32(contractKey + numPeriodsOffset), _numPeriods);
        // setUint(bytes32(contractKey + periodsPaidOffset), 0);
        // Log it
        emit RPLTreasuryContractCreated(_contractName, _recipientAddress, _amountPerPeriod, _startTime, _periodLength, _numPeriods);
    }

    /// @notice Modifies an existing recurring payment contract
    /// @param _contractName The contract to modify
    /// @param _recipientAddress The address which can claim against this recurring payment
    /// @param _amountPerPeriod The amount of RPL that can be claimed each period
    /// @param _periodLength The length (in seconds) of periods of this contract
    /// @param _numPeriods The number of periods this contract pays out for
    function updateContract(string memory _contractName, address _recipientAddress, uint256 _amountPerPeriod, uint256 _periodLength, uint256 _numPeriods) override external onlyLatestContract("rocketDAOProtocolProposals", msg.sender) onlyLatestContract("rocketClaimDAO", address(this)) {
        uint256 contractKey = uint256(keccak256(abi.encodePacked("dao.protocol.treasury.contract", _contractName)));
        // Check it exists
        require(getBool(bytes32(contractKey + existsOffset)) == true, "Contract does not exist");
        // Write to storage
        uint256 lastPaymentTime = getUint(bytes32(contractKey + lastPaymentOffset));
        // Payout contract per existing parameters if contract has already started
        if (block.timestamp > lastPaymentTime) {
            payOutContract(_contractName);
        }
        // Update the contract
        setAddress(bytes32(contractKey + recipientOffset), _recipientAddress);
        setUint(bytes32(contractKey + amountOffset), _amountPerPeriod);
        setUint(bytes32(contractKey + periodLengthOffset), _periodLength);
        setUint(bytes32(contractKey + numPeriodsOffset), _numPeriods);
        // Log it
        emit RPLTreasuryContractUpdated(_contractName, _recipientAddress, _amountPerPeriod, _periodLength, _numPeriods);
    }

    /// @notice Can be called to withdraw any paid amounts of RPL to the supplied recipient
    /// @param _recipientAddress The recipient address to claim for
    function withdrawBalance(address _recipientAddress) override public onlyLatestContract("rocketClaimDAO", address(this)) {
        // Load contracts
        RocketVaultInterface rocketVault = RocketVaultInterface(getContractAddress("rocketVault"));
        // Addresses
        IERC20 rplToken = IERC20(getContractAddress("rocketTokenRPL"));
        // Get pending balance
        bytes32 balanceKey = keccak256(abi.encodePacked("dao.protocol.treasury.balance", _recipientAddress));
        uint256 amount = getUint(balanceKey);
        // Zero out pending balance
        setUint(balanceKey, 0);
        // Some initial checks
        require(amount > 0, "No balance to withdraw");
        require(amount <= rocketVault.balanceOfToken("rocketClaimDAO", rplToken), "Insufficient treasury balance for withdrawal");
        // Send now
        rocketVault.withdrawToken(_recipientAddress, rplToken, amount);
        // Log it
        emit RPLTreasuryContractClaimed(_recipientAddress, amount, block.timestamp);
    }

    /// @notice Executes payout on the given contracts
    /// @param _contractNames An array of contract names to execute a payout on
    function payOutContracts(string[] calldata _contractNames) override external onlyLatestContract("rocketClaimDAO", address(this)) {
        uint256 contractNamesLength = _contractNames.length;
        for (uint256 i = 0; i < contractNamesLength; ++i) {
            payOutContract(_contractNames[i]);
        }
    }

    /// @notice Executes a payout on given contracts and withdraws the resulting balance to the recipient
    /// @param _contractNames An array of contract names to execute a payout and withdraw on
    function payOutContractsAndWithdraw(string[] calldata _contractNames) override external onlyLatestContract("rocketClaimDAO", address(this)) {
        uint256 contractNamesLength = _contractNames.length;
        for (uint256 i = 0; i < contractNamesLength; ++i) {
            // Payout contract
            payOutContract(_contractNames[i]);
            // Withdraw to contract recipient
            uint256 contractKey = uint256(keccak256(abi.encodePacked("dao.protocol.treasury.contract", _contractNames[i])));
            address recipient = getAddress(bytes32(contractKey + recipientOffset));
            withdrawBalance(recipient);
        }
    }

    /// @dev Pays out any outstanding amounts to the recipient of a contract
    function payOutContract(string memory _contractName) internal {
        uint256 contractKey = uint256(keccak256(abi.encodePacked("dao.protocol.treasury.contract", _contractName)));

        uint256 lastPaymentTime = getUint(bytes32(contractKey + lastPaymentOffset));

        // Payments haven't started yet (nothing to do)
        if (block.timestamp < lastPaymentTime) {
            return;
        }

        uint256 periodLength = getUint(bytes32(contractKey + periodLengthOffset));
        uint256 periodsToPay = (block.timestamp - lastPaymentTime) / periodLength;

        uint256 periodsPaid = getUint(bytes32(contractKey + periodsPaidOffset));
        uint256 numPeriods = getUint(bytes32(contractKey + numPeriodsOffset));

        // Calculate how many periods to pay
        if (periodsToPay + periodsPaid > numPeriods) {
            periodsToPay = numPeriods - periodsPaid;
        }

        // Already paid up to date
        if (periodsToPay == 0) {
            return;
        }

        address recipientAddress = getAddress(bytes32(contractKey + recipientOffset));
        uint256 amountPerPeriod = getUint(bytes32(contractKey + amountOffset));
        uint256 amountToPay = periodsToPay * amountPerPeriod;

        // Update last paid timestamp and periods paid
        setUint(bytes32(contractKey + lastPaymentOffset), lastPaymentTime + (periodsToPay * periodLength));
        setUint(bytes32(contractKey + periodsPaidOffset), periodsPaid + periodsToPay);

        // Add to the recipient's balance
        addUint(keccak256(abi.encodePacked("dao.protocol.treasury.balance", recipientAddress)), amountToPay);

        // Emit event
        emit RPLTreasuryContractPayment(_contractName, recipientAddress, amountToPay, block.timestamp);
    }
}

/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |  DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0  |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
  *  decentralised, trustless and compatible with staking in Ethereum 2.0.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

pragma solidity >0.5.0 <0.9.0;

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

interface RocketStorageInterface {

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

    // Guardian
    function getGuardian() external view returns(address);
    function setGuardian(address _newAddress) external;
    function confirmGuardian() external;

    // Getters
    function getAddress(bytes32 _key) external view returns (address);
    function getUint(bytes32 _key) external view returns (uint);
    function getString(bytes32 _key) external view returns (string memory);
    function getBytes(bytes32 _key) external view returns (bytes memory);
    function getBool(bytes32 _key) external view returns (bool);
    function getInt(bytes32 _key) external view returns (int);
    function getBytes32(bytes32 _key) external view returns (bytes32);

    // Setters
    function setAddress(bytes32 _key, address _value) external;
    function setUint(bytes32 _key, uint _value) external;
    function setString(bytes32 _key, string calldata _value) external;
    function setBytes(bytes32 _key, bytes calldata _value) external;
    function setBool(bytes32 _key, bool _value) external;
    function setInt(bytes32 _key, int _value) external;
    function setBytes32(bytes32 _key, bytes32 _value) external;

    // Deleters
    function deleteAddress(bytes32 _key) external;
    function deleteUint(bytes32 _key) external;
    function deleteString(bytes32 _key) external;
    function deleteBytes(bytes32 _key) external;
    function deleteBool(bytes32 _key) external;
    function deleteInt(bytes32 _key) external;
    function deleteBytes32(bytes32 _key) external;

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

    // Protected storage
    function getNodeWithdrawalAddress(address _nodeAddress) external view returns (address);
    function getNodePendingWithdrawalAddress(address _nodeAddress) external view returns (address);
    function setWithdrawalAddress(address _nodeAddress, address _newWithdrawalAddress, bool _confirm) external;
    function confirmWithdrawalAddress(address _nodeAddress) external;
}

/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |  DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0  |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
  *  decentralised, trustless and compatible with staking in Ethereum 2.0.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

pragma solidity >0.5.0 <0.9.0;

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

import "../interface/RocketStorageInterface.sol";

/// @title Base settings / modifiers for each contract in Rocket Pool
/// @author David Rugendyke

abstract contract RocketBase {

    // Calculate using this as the base
    uint256 constant calcBase = 1 ether;

    // Version of the contract
    uint8 public version;

    // The main storage contract where primary persistant storage is maintained
    RocketStorageInterface rocketStorage = RocketStorageInterface(address(0));


    /*** Modifiers **********************************************************/

    /**
    * @dev Throws if called by any sender that doesn't match a Rocket Pool network contract
    */
    modifier onlyLatestNetworkContract() {
        require(getBool(keccak256(abi.encodePacked("contract.exists", msg.sender))), "Invalid or outdated network contract");
        _;
    }

    /**
    * @dev Throws if called by any sender that doesn't match one of the supplied contract or is the latest version of that contract
    */
    modifier onlyLatestContract(string memory _contractName, address _contractAddress) {
        require(_contractAddress == getAddress(keccak256(abi.encodePacked("contract.address", _contractName))), "Invalid or outdated contract");
        _;
    }

    /**
    * @dev Throws if called by any sender that isn't a registered node
    */
    modifier onlyRegisteredNode(address _nodeAddress) {
        require(getBool(keccak256(abi.encodePacked("node.exists", _nodeAddress))), "Invalid node");
        _;
    }

    /**
    * @dev Throws if called by any sender that isn't a trusted node DAO member
    */
    modifier onlyTrustedNode(address _nodeAddress) {
        require(getBool(keccak256(abi.encodePacked("dao.trustednodes.", "member", _nodeAddress))), "Invalid trusted node");
        _;
    }

    /**
    * @dev Throws if called by any sender that isn't a registered minipool
    */
    modifier onlyRegisteredMinipool(address _minipoolAddress) {
        require(getBool(keccak256(abi.encodePacked("minipool.exists", _minipoolAddress))), "Invalid minipool");
        _;
    }
    

    /**
    * @dev Throws if called by any account other than a guardian account (temporary account allowed access to settings before DAO is fully enabled)
    */
    modifier onlyGuardian() {
        require(msg.sender == rocketStorage.getGuardian(), "Account is not a temporary guardian");
        _;
    }




    /*** Methods **********************************************************/

    /// @dev Set the main Rocket Storage address
    constructor(RocketStorageInterface _rocketStorageAddress) {
        // Update the contract address
        rocketStorage = RocketStorageInterface(_rocketStorageAddress);
    }


    /// @dev Get the address of a network contract by name
    function getContractAddress(string memory _contractName) internal view returns (address) {
        // Get the current contract address
        address contractAddress = getAddress(keccak256(abi.encodePacked("contract.address", _contractName)));
        // Check it
        require(contractAddress != address(0x0), "Contract not found");
        // Return
        return contractAddress;
    }


    /// @dev Get the address of a network contract by name (returns address(0x0) instead of reverting if contract does not exist)
    function getContractAddressUnsafe(string memory _contractName) internal view returns (address) {
        // Get the current contract address
        address contractAddress = getAddress(keccak256(abi.encodePacked("contract.address", _contractName)));
        // Return
        return contractAddress;
    }


    /// @dev Get the name of a network contract by address
    function getContractName(address _contractAddress) internal view returns (string memory) {
        // Get the contract name
        string memory contractName = getString(keccak256(abi.encodePacked("contract.name", _contractAddress)));
        // Check it
        require(bytes(contractName).length > 0, "Contract not found");
        // Return
        return contractName;
    }

    /// @dev Get revert error message from a .call method
    function getRevertMsg(bytes memory _returnData) internal pure returns (string memory) {
        // If the _res length is less than 68, then the transaction failed silently (without a revert message)
        if (_returnData.length < 68) return "Transaction reverted silently";
        assembly {
            // Slice the sighash.
            _returnData := add(_returnData, 0x04)
        }
        return abi.decode(_returnData, (string)); // All that remains is the revert string
    }



    /*** Rocket Storage Methods ****************************************/

    // Note: Unused helpers have been removed to keep contract sizes down

    /// @dev Storage get methods
    function getAddress(bytes32 _key) internal view returns (address) { return rocketStorage.getAddress(_key); }
    function getUint(bytes32 _key) internal view returns (uint) { return rocketStorage.getUint(_key); }
    function getString(bytes32 _key) internal view returns (string memory) { return rocketStorage.getString(_key); }
    function getBytes(bytes32 _key) internal view returns (bytes memory) { return rocketStorage.getBytes(_key); }
    function getBool(bytes32 _key) internal view returns (bool) { return rocketStorage.getBool(_key); }
    function getInt(bytes32 _key) internal view returns (int) { return rocketStorage.getInt(_key); }
    function getBytes32(bytes32 _key) internal view returns (bytes32) { return rocketStorage.getBytes32(_key); }

    /// @dev Storage set methods
    function setAddress(bytes32 _key, address _value) internal { rocketStorage.setAddress(_key, _value); }
    function setUint(bytes32 _key, uint _value) internal { rocketStorage.setUint(_key, _value); }
    function setString(bytes32 _key, string memory _value) internal { rocketStorage.setString(_key, _value); }
    function setBytes(bytes32 _key, bytes memory _value) internal { rocketStorage.setBytes(_key, _value); }
    function setBool(bytes32 _key, bool _value) internal { rocketStorage.setBool(_key, _value); }
    function setInt(bytes32 _key, int _value) internal { rocketStorage.setInt(_key, _value); }
    function setBytes32(bytes32 _key, bytes32 _value) internal { rocketStorage.setBytes32(_key, _value); }

    /// @dev Storage delete methods
    function deleteAddress(bytes32 _key) internal { rocketStorage.deleteAddress(_key); }
    function deleteUint(bytes32 _key) internal { rocketStorage.deleteUint(_key); }
    function deleteString(bytes32 _key) internal { rocketStorage.deleteString(_key); }
    function deleteBytes(bytes32 _key) internal { rocketStorage.deleteBytes(_key); }
    function deleteBool(bytes32 _key) internal { rocketStorage.deleteBool(_key); }
    function deleteInt(bytes32 _key) internal { rocketStorage.deleteInt(_key); }
    function deleteBytes32(bytes32 _key) internal { rocketStorage.deleteBytes32(_key); }

    /// @dev Storage arithmetic methods
    function addUint(bytes32 _key, uint256 _amount) internal { rocketStorage.addUint(_key, _amount); }
    function subUint(bytes32 _key, uint256 _amount) internal { rocketStorage.subUint(_key, _amount); }
}

/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |  DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0  |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
  *  decentralised, trustless and compatible with staking in Ethereum 2.0.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity >0.5.0 <0.9.0;

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

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

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

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

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

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

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

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

/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |  DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0  |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
  *  decentralised, trustless and compatible with staking in Ethereum 2.0.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

import "./IERC20.sol";

pragma solidity >0.5.0 <0.9.0;

interface IERC20Burnable is IERC20 {
    function burn(uint256 amount) external;
    function burnFrom(address account, uint256 amount) external;
}

/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |  DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0  |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
  *  decentralised, trustless and compatible with staking in Ethereum 2.0.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

pragma solidity >0.5.0 <0.9.0;

// SPDX-License-Identifier: GPL-3.0-only
import "./util/IERC20Burnable.sol";

interface RocketVaultInterface {
    function balanceOf(string memory _networkContractName) external view returns (uint256);
    function depositEther() external payable;
    function withdrawEther(uint256 _amount) external;
    function depositToken(string memory _networkContractName, IERC20 _tokenAddress, uint256 _amount) external;
    function withdrawToken(address _withdrawalAddress, IERC20 _tokenAddress, uint256 _amount) external;
    function balanceOfToken(string memory _networkContractName, IERC20 _tokenAddress) external view returns (uint256);
    function transferToken(string memory _networkContractName, IERC20 _tokenAddress, uint256 _amount) external;
    function burnToken(IERC20Burnable _tokenAddress, uint256 _amount) external;
}

/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |  DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0  |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
  *  decentralised, trustless and compatible with staking in Ethereum 2.0.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

pragma solidity >0.5.0 <0.9.0;

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

struct RewardSubmission {
    uint256 rewardIndex;
    uint256 executionBlock;
    uint256 consensusBlock;
    bytes32 merkleRoot;
    string merkleTreeCID;
    uint256 intervalsPassed;
    uint256 treasuryRPL;
    uint256[] trustedNodeRPL;
    uint256[] nodeRPL;
    uint256[] nodeETH;
    uint256 userETH;
}

/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |  DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0  |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
  *  decentralised, trustless and compatible with staking in Ethereum 2.0.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

pragma solidity >0.5.0 <0.9.0;
pragma abicoder v2;

import "../../types/RewardSubmission.sol";

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

interface RocketRewardsPoolInterface {
    function getRewardIndex() external view returns(uint256);
    function getRPLBalance() external view returns(uint256);
    function getPendingRPLRewards() external view returns (uint256);
    function getPendingETHRewards() external view returns (uint256);
    function getClaimIntervalTimeStart() external view returns(uint256);
    function getClaimIntervalTime() external view returns(uint256);
    function getClaimIntervalsPassed() external view returns(uint256);
    function getClaimIntervalExecutionBlock(uint256 _interval) external view returns(uint256);
    function getClaimIntervalExecutionAddress(uint256 _interval) external view returns(address);
    function getClaimingContractPerc(string memory _claimingContract) external view returns(uint256);
    function getClaimingContractsPerc(string[] memory _claimingContracts) external view returns (uint256[] memory);
    function getTrustedNodeSubmitted(address _trustedNodeAddress, uint256 _rewardIndex) external view returns (bool);
    function getSubmissionFromNodeExists(address _trustedNodeAddress, RewardSubmission calldata _submission) external view returns (bool);
    function getSubmissionCount(RewardSubmission calldata _submission) external view returns (uint256);
    function submitRewardSnapshot(RewardSubmission calldata _submission) external;
    function executeRewardSnapshot(RewardSubmission calldata _submission) external;
}

/**
  *       .
  *      / \
  *     |.'.|
  *     |'.'|
  *   ,'|   |`.
  *  |,-'-|-'-.|
  *   __|_| |         _        _      _____           _
  *  | ___ \|        | |      | |    | ___ \         | |
  *  | |_/ /|__   ___| | _____| |_   | |_/ /__   ___ | |
  *  |    // _ \ / __| |/ / _ \ __|  |  __/ _ \ / _ \| |
  *  | |\ \ (_) | (__|   <  __/ |_   | | | (_) | (_) | |
  *  \_| \_\___/ \___|_|\_\___|\__|  \_|  \___/ \___/|_|
  * +---------------------------------------------------+
  * |  DECENTRALISED STAKING PROTOCOL FOR ETHEREUM 2.0  |
  * +---------------------------------------------------+
  *
  *  Rocket Pool is a first-of-its-kind ETH2 Proof of Stake protocol, designed to be community owned,
  *  decentralised, trustless and compatible with staking in Ethereum 2.0.
  *
  *  For more information about Rocket Pool, visit https://rocketpool.net
  *
  *  Authors: David Rugendyke, Jake Pospischil, Kane Wallmann, Darren Langley, Joe Clapis, Nick Doherty
  *
  */

// SPDX-License-Identifier: GPL-3.0-only
pragma solidity >0.5.0 <0.9.0;
pragma abicoder v2;

interface RocketClaimDAOInterface {
    // Struct for returning data about a payment contract
    struct PaymentContract {
        address recipient;
        uint256 amountPerPeriod;
        uint256 periodLength;
        uint256 lastPaymentTime;
        uint256 numPeriods;
        uint256 periodsPaid;
    }

    function getContractExists(string calldata _contractName) external view returns (bool);
    function getContract(string calldata _contractName) external view returns (PaymentContract memory);
    function getBalance(address _recipientAddress) external view returns (uint256);
    function spend(string memory _invoiceID, address _recipientAddress, uint256 _amount) external;
    function newContract(string memory _contractName, address _recipientAddress, uint256 _amountPerPeriod, uint256 _periodLength, uint256 _startTime, uint256 _numPeriods) external;
    function updateContract(string memory _contractName, address _recipientAddress, uint256 _amountPerPeriod, uint256 _periodLength, uint256 _numPeriods) external;
    function withdrawBalance(address _recipientAddress) external;
    function payOutContracts(string[] calldata _contractNames) external;
    function payOutContractsAndWithdraw(string[] calldata _contractNames) external;
}

{
  "optimizer": {
    "enabled": true,
    "runs": 15000
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  }
}

[{"inputs":[{"internalType":"contract RocketStorageInterface","name":"_rocketStorageAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"string","name":"invoiceID","type":"string"},{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"RPLTokensSentByDAOProtocol","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"RPLTreasuryContractClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"string","name":"contractName","type":"string"},{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"amountPerPeriod","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"startTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"periodLength","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"numPeriods","type":"uint256"}],"name":"RPLTreasuryContractCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"string","name":"contractName","type":"string"},{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"time","type":"uint256"}],"name":"RPLTreasuryContractPayment","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"string","name":"contractName","type":"string"},{"indexed":true,"internalType":"address","name":"recipient","type":"address"},{"indexed":false,"internalType":"uint256","name":"amountPerPeriod","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"periodLength","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"numPeriods","type":"uint256"}],"name":"RPLTreasuryContractUpdated","type":"event"},{"inputs":[{"internalType":"address","name":"_recipientAddress","type":"address"}],"name":"getBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"_contractName","type":"string"}],"name":"getContract","outputs":[{"components":[{"internalType":"address","name":"recipient","type":"address"},{"internalType":"uint256","name":"amountPerPeriod","type":"uint256"},{"internalType":"uint256","name":"periodLength","type":"uint256"},{"internalType":"uint256","name":"lastPaymentTime","type":"uint256"},{"internalType":"uint256","name":"numPeriods","type":"uint256"},{"internalType":"uint256","name":"periodsPaid","type":"uint256"}],"internalType":"struct RocketClaimDAOInterface.PaymentContract","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"_contractName","type":"string"}],"name":"getContractExists","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"_contractName","type":"string"},{"internalType":"address","name":"_recipientAddress","type":"address"},{"internalType":"uint256","name":"_amountPerPeriod","type":"uint256"},{"internalType":"uint256","name":"_periodLength","type":"uint256"},{"internalType":"uint256","name":"_startTime","type":"uint256"},{"internalType":"uint256","name":"_numPeriods","type":"uint256"}],"name":"newContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string[]","name":"_contractNames","type":"string[]"}],"name":"payOutContracts","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string[]","name":"_contractNames","type":"string[]"}],"name":"payOutContractsAndWithdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_invoiceID","type":"string"},{"internalType":"address","name":"_recipientAddress","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"spend","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"_contractName","type":"string"},{"internalType":"address","name":"_recipientAddress","type":"address"},{"internalType":"uint256","name":"_amountPerPeriod","type":"uint256"},{"internalType":"uint256","name":"_periodLength","type":"uint256"},{"internalType":"uint256","name":"_numPeriods","type":"uint256"}],"name":"updateContract","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"version","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_recipientAddress","type":"address"}],"name":"withdrawBalance","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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