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// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

import {ChainlinkClient, Chainlink} from "@chainlink/contracts/src/v0.8/ChainlinkClient.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import "../interfaces/IGToken.sol";
import "../interfaces/IOwnable.sol";
import "../interfaces/IGTokenOpenPnlFeed.sol";

/**
 * @dev Manages open pnl oracle requests for a gToken vault
 */
contract GTokenOpenPnlFeed is ChainlinkClient, IGTokenOpenPnlFeed {
    using Chainlink for Chainlink.Request;

    // Constants
    uint256 public immutable LINK_FEE_BALANCE_DIVIDER;
    uint256 constant MIN_ANSWERS = 2;
    uint256 constant MIN_REQUESTS_START = 1 hours;
    uint256 constant MAX_REQUESTS_START = 1 weeks;
    uint256 constant MIN_REQUESTS_EVERY = 1 hours;
    uint256 constant MAX_REQUESTS_EVERY = 1 days;
    uint256 constant MIN_REQUESTS_COUNT = 3;
    uint256 constant MAX_REQUESTS_COUNT = 10;

    // Params
    IGToken public immutable gToken;

    uint256 public requestsStart = 2 days;
    uint256 public requestsEvery = 6 hours;
    uint256 public requestsCount = 4;

    address[] public oracles;
    bytes32 public job;
    uint256 public minAnswers;

    // State
    int256[] public nextEpochValues;
    uint256 public nextEpochValuesRequestCount;
    uint256 public nextEpochValuesLastRequest;

    uint256 public lastRequestId;
    mapping(bytes32 => uint256) public requestIds; // chainlink request id => requestId
    mapping(uint256 => Request) public requests; // requestId => request
    mapping(uint256 => int256[]) public requestAnswers; // requestId => open pnl (1e18)

    constructor(
        uint256 _LINK_FEE_BALANCE_DIVIDER,
        address _linkToken,
        IGToken _gToken,
        address[] memory _oracles,
        bytes32 _job,
        uint256 _minAnswers
    ) {
        require(
            _LINK_FEE_BALANCE_DIVIDER > 0 &&
                _linkToken != address(0) &&
                address(_gToken) != address(0) &&
                _oracles.length > 0 &&
                _job != bytes32(0) &&
                _minAnswers >= MIN_ANSWERS &&
                _minAnswers <= _oracles.length / 2,
            "WRONG_PARAMS"
        );

        LINK_FEE_BALANCE_DIVIDER = _LINK_FEE_BALANCE_DIVIDER;

        setChainlinkToken(_linkToken);

        gToken = _gToken;
        oracles = _oracles;
        job = _job;
        minAnswers = _minAnswers;
    }

    // Modifiers
    modifier onlyGTokenOwner() {
        // 2-week timelock
        require(msg.sender == IOwnable(address(gToken)).owner(), "ONLY_OWNER");
        _;
    }

    modifier onlyGTokenManager() {
        // 3-day timelock
        require(msg.sender == gToken.manager(), "ONLY_MANAGER");
        _;
    }

    modifier onlyGTokenAdmin() {
        // bypasses timelock, emergency functions only
        require(msg.sender == gToken.admin(), "ONLY_ADMIN");
        _;
    }

    // Manage parameters
    function updateRequestsStart(uint256 newValue) public onlyGTokenOwner {
        require(newValue >= MIN_REQUESTS_START, "BELOW_MIN");
        require(newValue <= MAX_REQUESTS_START, "ABOVE_MAX");
        requestsStart = newValue;
        emit NumberParamUpdated("requestsStart", newValue);
    }

    function updateRequestsEvery(uint256 newValue) public onlyGTokenOwner {
        require(newValue >= MIN_REQUESTS_EVERY, "BELOW_MIN");
        require(newValue <= MAX_REQUESTS_EVERY, "ABOVE_MAX");
        requestsEvery = newValue;
        emit NumberParamUpdated("requestsEvery", newValue);
    }

    function updateRequestsCount(uint256 newValue) public onlyGTokenOwner {
        require(newValue >= MIN_REQUESTS_COUNT, "BELOW_MIN");
        require(newValue <= MAX_REQUESTS_COUNT, "ABOVE_MAX");
        requestsCount = newValue;
        emit NumberParamUpdated("requestsCount", newValue);
    }

    function updateRequestsInfoBatch(
        uint256 newRequestsStart,
        uint256 newRequestsEvery,
        uint256 newRequestsCount
    ) external onlyGTokenOwner {
        updateRequestsStart(newRequestsStart);
        updateRequestsEvery(newRequestsEvery);
        updateRequestsCount(newRequestsCount);
    }

    function updateMinAnswers(uint256 newValue) external onlyGTokenManager {
        require(newValue >= MIN_ANSWERS, "BELOW_MIN");
        require(newValue <= oracles.length / 2, "ABOVE_MAX");
        minAnswers = newValue;
        emit NumberParamUpdated("minAnswers", newValue);
    }

    function updateOracle(uint256 _index, address newValue) external onlyGTokenOwner {
        require(_index < oracles.length, "INDEX_TOO_BIG");
        require(newValue != address(0), "VALUE_0");
        oracles[_index] = newValue;
        emit OracleUpdated(_index, newValue);
    }

    function updateOracles(address[] memory newValues) external onlyGTokenOwner {
        require(newValues.length >= minAnswers * 2, "ARRAY_TOO_SMALL");
        oracles = newValues;
        emit OraclesUpdated(newValues);
    }

    function updateJob(bytes32 newValue) external onlyGTokenManager {
        require(newValue != bytes32(0), "VALUE_0");
        job = newValue;
        emit JobUpdated(newValue);
    }

    // Emergency function in case of oracle manipulation
    function resetNextEpochValueRequests() external onlyGTokenAdmin {
        uint256 reqToResetCount = nextEpochValuesRequestCount;
        require(reqToResetCount > 0, "NO_REQUEST_TO_RESET");

        delete nextEpochValues;

        nextEpochValuesRequestCount = 0;
        nextEpochValuesLastRequest = 0;

        for (uint256 i; i < reqToResetCount; ++i) {
            requests[lastRequestId - i].active = false;
        }

        emit NextEpochValuesReset(gToken.currentEpoch(), reqToResetCount);
    }

    // Safety function that anyone can call in case the function above is used in an abusive manner,
    // which could theoretically delay withdrawals indefinitely since it prevents new epochs
    function forceNewEpoch() external {
        require(
            block.timestamp - gToken.currentEpochStart() >= requestsStart + requestsEvery * requestsCount,
            "TOO_EARLY"
        );
        uint256 newEpoch = startNewEpoch();
        emit NewEpochForced(newEpoch);
    }

    // Called by gToken contract
    function newOpenPnlRequestOrEpoch() external {
        bool firstRequest = nextEpochValuesLastRequest == 0;

        if (firstRequest && block.timestamp - gToken.currentEpochStart() >= requestsStart) {
            makeOpenPnlRequest();
        } else if (!firstRequest && block.timestamp - nextEpochValuesLastRequest >= requestsEvery) {
            if (nextEpochValuesRequestCount < requestsCount) {
                makeOpenPnlRequest();
            } else if (nextEpochValues.length >= requestsCount) {
                startNewEpoch();
            }
        }
    }

    // Create requests
    function makeOpenPnlRequest() private {
        Chainlink.Request memory linkRequest = buildChainlinkRequest(job, address(this), this.fulfill.selector);

        uint256 linkFeePerNode = IERC20(chainlinkTokenAddress()).balanceOf(address(this)) /
            LINK_FEE_BALANCE_DIVIDER /
            oracles.length;

        requests[++lastRequestId] = Request({initiated: true, active: true, linkFeePerNode: linkFeePerNode});

        nextEpochValuesRequestCount++;
        nextEpochValuesLastRequest = block.timestamp;

        for (uint256 i; i < oracles.length; ++i) {
            requestIds[sendChainlinkRequestTo(oracles[i], linkRequest, linkFeePerNode)] = lastRequestId;
        }

        emit NextEpochValueRequested(gToken.currentEpoch(), lastRequestId, job, oracles.length, linkFeePerNode);
    }

    // Handle answers
    function fulfill(
        bytes32 requestId,
        int256 value // 1e18
    ) external recordChainlinkFulfillment(requestId) {
        uint256 reqId = requestIds[requestId];
        delete requestIds[requestId];

        Request memory r = requests[reqId];
        uint256 currentEpoch = gToken.currentEpoch();

        emit RequestValueReceived(!r.active, currentEpoch, reqId, requestId, msg.sender, value, r.linkFeePerNode);

        if (!r.active) {
            return;
        }

        int256[] storage answers = requestAnswers[reqId];
        answers.push(value);

        if (answers.length == minAnswers) {
            int256 medianValue = median(answers);
            nextEpochValues.push(medianValue);

            emit RequestMedianValueSet(currentEpoch, reqId, answers, medianValue);

            requests[reqId].active = false;
            delete requestAnswers[reqId];
        }
    }

    // Increment epoch and update feed value
    function startNewEpoch() private returns (uint256 newEpoch) {
        nextEpochValuesRequestCount = 0;
        nextEpochValuesLastRequest = 0;

        uint256 currentEpochPositiveOpenPnl = gToken.currentEpochPositiveOpenPnl();

        // If all responses arrived, use mean, otherwise it means we forced a new epoch,
        // so as a safety we use the last epoch value
        int256 newEpochOpenPnl = nextEpochValues.length >= requestsCount
            ? average(nextEpochValues)
            : int256(currentEpochPositiveOpenPnl);

        uint256 finalNewEpochPositiveOpenPnl = gToken.updateAccPnlPerTokenUsed(
            currentEpochPositiveOpenPnl,
            newEpochOpenPnl > 0 ? uint256(newEpochOpenPnl) : 0
        );

        newEpoch = gToken.currentEpoch();

        emit NewEpoch(newEpoch, lastRequestId, nextEpochValues, newEpochOpenPnl, finalNewEpochPositiveOpenPnl);

        delete nextEpochValues;
    }

    // Median function
    function _swap(int256[] memory array, uint256 i, uint256 j) private pure {
        (array[i], array[j]) = (array[j], array[i]);
    }

    function _sort(int256[] memory array, uint256 begin, uint256 end) private pure {
        if (begin >= end) {
            return;
        }

        uint256 j = begin;
        int256 pivot = array[j];

        for (uint256 i = begin + 1; i < end; ++i) {
            if (array[i] < pivot) {
                _swap(array, i, ++j);
            }
        }

        _swap(array, begin, j);
        _sort(array, begin, j);
        _sort(array, j + 1, end);
    }

    function median(int256[] memory array) private pure returns (int256) {
        _sort(array, 0, array.length);

        return
            array.length % 2 == 0
                ? (array[array.length / 2 - 1] + array[array.length / 2]) / 2
                : array[array.length / 2];
    }

    // Average function
    function average(int256[] memory array) private pure returns (int256) {
        int256 sum;
        for (uint256 i; i < array.length; ++i) {
            sum += array[i];
        }

        return sum / int256(array.length);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {CBORChainlink} from "./vendor/CBORChainlink.sol";
import {BufferChainlink} from "./vendor/BufferChainlink.sol";

/**
 * @title Library for common Chainlink functions
 * @dev Uses imported CBOR library for encoding to buffer
 */
library Chainlink {
  uint256 internal constant defaultBufferSize = 256; // solhint-disable-line const-name-snakecase

  using CBORChainlink for BufferChainlink.buffer;

  struct Request {
    bytes32 id;
    address callbackAddress;
    bytes4 callbackFunctionId;
    uint256 nonce;
    BufferChainlink.buffer buf;
  }

  /**
   * @notice Initializes a Chainlink request
   * @dev Sets the ID, callback address, and callback function signature on the request
   * @param self The uninitialized request
   * @param jobId The Job Specification ID
   * @param callbackAddr The callback address
   * @param callbackFunc The callback function signature
   * @return The initialized request
   */
  function initialize(
    Request memory self,
    bytes32 jobId,
    address callbackAddr,
    bytes4 callbackFunc
  ) internal pure returns (Chainlink.Request memory) {
    BufferChainlink.init(self.buf, defaultBufferSize);
    self.id = jobId;
    self.callbackAddress = callbackAddr;
    self.callbackFunctionId = callbackFunc;
    return self;
  }

  /**
   * @notice Sets the data for the buffer without encoding CBOR on-chain
   * @dev CBOR can be closed with curly-brackets {} or they can be left off
   * @param self The initialized request
   * @param data The CBOR data
   */
  function setBuffer(Request memory self, bytes memory data) internal pure {
    BufferChainlink.init(self.buf, data.length);
    BufferChainlink.append(self.buf, data);
  }

  /**
   * @notice Adds a string value to the request with a given key name
   * @param self The initialized request
   * @param key The name of the key
   * @param value The string value to add
   */
  function add(
    Request memory self,
    string memory key,
    string memory value
  ) internal pure {
    self.buf.encodeString(key);
    self.buf.encodeString(value);
  }

  /**
   * @notice Adds a bytes value to the request with a given key name
   * @param self The initialized request
   * @param key The name of the key
   * @param value The bytes value to add
   */
  function addBytes(
    Request memory self,
    string memory key,
    bytes memory value
  ) internal pure {
    self.buf.encodeString(key);
    self.buf.encodeBytes(value);
  }

  /**
   * @notice Adds a int256 value to the request with a given key name
   * @param self The initialized request
   * @param key The name of the key
   * @param value The int256 value to add
   */
  function addInt(
    Request memory self,
    string memory key,
    int256 value
  ) internal pure {
    self.buf.encodeString(key);
    self.buf.encodeInt(value);
  }

  /**
   * @notice Adds a uint256 value to the request with a given key name
   * @param self The initialized request
   * @param key The name of the key
   * @param value The uint256 value to add
   */
  function addUint(
    Request memory self,
    string memory key,
    uint256 value
  ) internal pure {
    self.buf.encodeString(key);
    self.buf.encodeUInt(value);
  }

  /**
   * @notice Adds an array of strings to the request with a given key name
   * @param self The initialized request
   * @param key The name of the key
   * @param values The array of string values to add
   */
  function addStringArray(
    Request memory self,
    string memory key,
    string[] memory values
  ) internal pure {
    self.buf.encodeString(key);
    self.buf.startArray();
    for (uint256 i = 0; i < values.length; i++) {
      self.buf.encodeString(values[i]);
    }
    self.buf.endSequence();
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./Chainlink.sol";
import "./interfaces/ENSInterface.sol";
import "./interfaces/LinkTokenInterface.sol";
import "./interfaces/ChainlinkRequestInterface.sol";
import "./interfaces/OperatorInterface.sol";
import "./interfaces/PointerInterface.sol";
import {ENSResolver as ENSResolver_Chainlink} from "./vendor/ENSResolver.sol";

/**
 * @title The ChainlinkClient contract
 * @notice Contract writers can inherit this contract in order to create requests for the
 * Chainlink network
 */
abstract contract ChainlinkClient {
  using Chainlink for Chainlink.Request;

  uint256 internal constant LINK_DIVISIBILITY = 10**18;
  uint256 private constant AMOUNT_OVERRIDE = 0;
  address private constant SENDER_OVERRIDE = address(0);
  uint256 private constant ORACLE_ARGS_VERSION = 1;
  uint256 private constant OPERATOR_ARGS_VERSION = 2;
  bytes32 private constant ENS_TOKEN_SUBNAME = keccak256("link");
  bytes32 private constant ENS_ORACLE_SUBNAME = keccak256("oracle");
  address private constant LINK_TOKEN_POINTER = 0xC89bD4E1632D3A43CB03AAAd5262cbe4038Bc571;

  ENSInterface private s_ens;
  bytes32 private s_ensNode;
  LinkTokenInterface private s_link;
  OperatorInterface private s_oracle;
  uint256 private s_requestCount = 1;
  mapping(bytes32 => address) private s_pendingRequests;

  event ChainlinkRequested(bytes32 indexed id);
  event ChainlinkFulfilled(bytes32 indexed id);
  event ChainlinkCancelled(bytes32 indexed id);

  /**
   * @notice Creates a request that can hold additional parameters
   * @param specId The Job Specification ID that the request will be created for
   * @param callbackAddr address to operate the callback on
   * @param callbackFunctionSignature function signature to use for the callback
   * @return A Chainlink Request struct in memory
   */
  function buildChainlinkRequest(
    bytes32 specId,
    address callbackAddr,
    bytes4 callbackFunctionSignature
  ) internal pure returns (Chainlink.Request memory) {
    Chainlink.Request memory req;
    return req.initialize(specId, callbackAddr, callbackFunctionSignature);
  }

  /**
   * @notice Creates a request that can hold additional parameters
   * @param specId The Job Specification ID that the request will be created for
   * @param callbackFunctionSignature function signature to use for the callback
   * @return A Chainlink Request struct in memory
   */
  function buildOperatorRequest(bytes32 specId, bytes4 callbackFunctionSignature)
    internal
    view
    returns (Chainlink.Request memory)
  {
    Chainlink.Request memory req;
    return req.initialize(specId, address(this), callbackFunctionSignature);
  }

  /**
   * @notice Creates a Chainlink request to the stored oracle address
   * @dev Calls `chainlinkRequestTo` with the stored oracle address
   * @param req The initialized Chainlink Request
   * @param payment The amount of LINK to send for the request
   * @return requestId The request ID
   */
  function sendChainlinkRequest(Chainlink.Request memory req, uint256 payment) internal returns (bytes32) {
    return sendChainlinkRequestTo(address(s_oracle), req, payment);
  }

  /**
   * @notice Creates a Chainlink request to the specified oracle address
   * @dev Generates and stores a request ID, increments the local nonce, and uses `transferAndCall` to
   * send LINK which creates a request on the target oracle contract.
   * Emits ChainlinkRequested event.
   * @param oracleAddress The address of the oracle for the request
   * @param req The initialized Chainlink Request
   * @param payment The amount of LINK to send for the request
   * @return requestId The request ID
   */
  function sendChainlinkRequestTo(
    address oracleAddress,
    Chainlink.Request memory req,
    uint256 payment
  ) internal returns (bytes32 requestId) {
    uint256 nonce = s_requestCount;
    s_requestCount = nonce + 1;
    bytes memory encodedRequest = abi.encodeWithSelector(
      ChainlinkRequestInterface.oracleRequest.selector,
      SENDER_OVERRIDE, // Sender value - overridden by onTokenTransfer by the requesting contract's address
      AMOUNT_OVERRIDE, // Amount value - overridden by onTokenTransfer by the actual amount of LINK sent
      req.id,
      address(this),
      req.callbackFunctionId,
      nonce,
      ORACLE_ARGS_VERSION,
      req.buf.buf
    );
    return _rawRequest(oracleAddress, nonce, payment, encodedRequest);
  }

  /**
   * @notice Creates a Chainlink request to the stored oracle address
   * @dev This function supports multi-word response
   * @dev Calls `sendOperatorRequestTo` with the stored oracle address
   * @param req The initialized Chainlink Request
   * @param payment The amount of LINK to send for the request
   * @return requestId The request ID
   */
  function sendOperatorRequest(Chainlink.Request memory req, uint256 payment) internal returns (bytes32) {
    return sendOperatorRequestTo(address(s_oracle), req, payment);
  }

  /**
   * @notice Creates a Chainlink request to the specified oracle address
   * @dev This function supports multi-word response
   * @dev Generates and stores a request ID, increments the local nonce, and uses `transferAndCall` to
   * send LINK which creates a request on the target oracle contract.
   * Emits ChainlinkRequested event.
   * @param oracleAddress The address of the oracle for the request
   * @param req The initialized Chainlink Request
   * @param payment The amount of LINK to send for the request
   * @return requestId The request ID
   */
  function sendOperatorRequestTo(
    address oracleAddress,
    Chainlink.Request memory req,
    uint256 payment
  ) internal returns (bytes32 requestId) {
    uint256 nonce = s_requestCount;
    s_requestCount = nonce + 1;
    bytes memory encodedRequest = abi.encodeWithSelector(
      OperatorInterface.operatorRequest.selector,
      SENDER_OVERRIDE, // Sender value - overridden by onTokenTransfer by the requesting contract's address
      AMOUNT_OVERRIDE, // Amount value - overridden by onTokenTransfer by the actual amount of LINK sent
      req.id,
      req.callbackFunctionId,
      nonce,
      OPERATOR_ARGS_VERSION,
      req.buf.buf
    );
    return _rawRequest(oracleAddress, nonce, payment, encodedRequest);
  }

  /**
   * @notice Make a request to an oracle
   * @param oracleAddress The address of the oracle for the request
   * @param nonce used to generate the request ID
   * @param payment The amount of LINK to send for the request
   * @param encodedRequest data encoded for request type specific format
   * @return requestId The request ID
   */
  function _rawRequest(
    address oracleAddress,
    uint256 nonce,
    uint256 payment,
    bytes memory encodedRequest
  ) private returns (bytes32 requestId) {
    requestId = keccak256(abi.encodePacked(this, nonce));
    s_pendingRequests[requestId] = oracleAddress;
    emit ChainlinkRequested(requestId);
    require(s_link.transferAndCall(oracleAddress, payment, encodedRequest), "unable to transferAndCall to oracle");
  }

  /**
   * @notice Allows a request to be cancelled if it has not been fulfilled
   * @dev Requires keeping track of the expiration value emitted from the oracle contract.
   * Deletes the request from the `pendingRequests` mapping.
   * Emits ChainlinkCancelled event.
   * @param requestId The request ID
   * @param payment The amount of LINK sent for the request
   * @param callbackFunc The callback function specified for the request
   * @param expiration The time of the expiration for the request
   */
  function cancelChainlinkRequest(
    bytes32 requestId,
    uint256 payment,
    bytes4 callbackFunc,
    uint256 expiration
  ) internal {
    OperatorInterface requested = OperatorInterface(s_pendingRequests[requestId]);
    delete s_pendingRequests[requestId];
    emit ChainlinkCancelled(requestId);
    requested.cancelOracleRequest(requestId, payment, callbackFunc, expiration);
  }

  /**
   * @notice the next request count to be used in generating a nonce
   * @dev starts at 1 in order to ensure consistent gas cost
   * @return returns the next request count to be used in a nonce
   */
  function getNextRequestCount() internal view returns (uint256) {
    return s_requestCount;
  }

  /**
   * @notice Sets the stored oracle address
   * @param oracleAddress The address of the oracle contract
   */
  function setChainlinkOracle(address oracleAddress) internal {
    s_oracle = OperatorInterface(oracleAddress);
  }

  /**
   * @notice Sets the LINK token address
   * @param linkAddress The address of the LINK token contract
   */
  function setChainlinkToken(address linkAddress) internal {
    s_link = LinkTokenInterface(linkAddress);
  }

  /**
   * @notice Sets the Chainlink token address for the public
   * network as given by the Pointer contract
   */
  function setPublicChainlinkToken() internal {
    setChainlinkToken(PointerInterface(LINK_TOKEN_POINTER).getAddress());
  }

  /**
   * @notice Retrieves the stored address of the LINK token
   * @return The address of the LINK token
   */
  function chainlinkTokenAddress() internal view returns (address) {
    return address(s_link);
  }

  /**
   * @notice Retrieves the stored address of the oracle contract
   * @return The address of the oracle contract
   */
  function chainlinkOracleAddress() internal view returns (address) {
    return address(s_oracle);
  }

  /**
   * @notice Allows for a request which was created on another contract to be fulfilled
   * on this contract
   * @param oracleAddress The address of the oracle contract that will fulfill the request
   * @param requestId The request ID used for the response
   */
  function addChainlinkExternalRequest(address oracleAddress, bytes32 requestId) internal notPendingRequest(requestId) {
    s_pendingRequests[requestId] = oracleAddress;
  }

  /**
   * @notice Sets the stored oracle and LINK token contracts with the addresses resolved by ENS
   * @dev Accounts for subnodes having different resolvers
   * @param ensAddress The address of the ENS contract
   * @param node The ENS node hash
   */
  function useChainlinkWithENS(address ensAddress, bytes32 node) internal {
    s_ens = ENSInterface(ensAddress);
    s_ensNode = node;
    bytes32 linkSubnode = keccak256(abi.encodePacked(s_ensNode, ENS_TOKEN_SUBNAME));
    ENSResolver_Chainlink resolver = ENSResolver_Chainlink(s_ens.resolver(linkSubnode));
    setChainlinkToken(resolver.addr(linkSubnode));
    updateChainlinkOracleWithENS();
  }

  /**
   * @notice Sets the stored oracle contract with the address resolved by ENS
   * @dev This may be called on its own as long as `useChainlinkWithENS` has been called previously
   */
  function updateChainlinkOracleWithENS() internal {
    bytes32 oracleSubnode = keccak256(abi.encodePacked(s_ensNode, ENS_ORACLE_SUBNAME));
    ENSResolver_Chainlink resolver = ENSResolver_Chainlink(s_ens.resolver(oracleSubnode));
    setChainlinkOracle(resolver.addr(oracleSubnode));
  }

  /**
   * @notice Ensures that the fulfillment is valid for this contract
   * @dev Use if the contract developer prefers methods instead of modifiers for validation
   * @param requestId The request ID for fulfillment
   */
  function validateChainlinkCallback(bytes32 requestId)
    internal
    recordChainlinkFulfillment(requestId)
  // solhint-disable-next-line no-empty-blocks
  {

  }

  /**
   * @dev Reverts if the sender is not the oracle of the request.
   * Emits ChainlinkFulfilled event.
   * @param requestId The request ID for fulfillment
   */
  modifier recordChainlinkFulfillment(bytes32 requestId) {
    require(msg.sender == s_pendingRequests[requestId], "Source must be the oracle of the request");
    delete s_pendingRequests[requestId];
    emit ChainlinkFulfilled(requestId);
    _;
  }

  /**
   * @dev Reverts if the request is already pending
   * @param requestId The request ID for fulfillment
   */
  modifier notPendingRequest(bytes32 requestId) {
    require(s_pendingRequests[requestId] == address(0), "Request is already pending");
    _;
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface ChainlinkRequestInterface {
  function oracleRequest(
    address sender,
    uint256 requestPrice,
    bytes32 serviceAgreementID,
    address callbackAddress,
    bytes4 callbackFunctionId,
    uint256 nonce,
    uint256 dataVersion,
    bytes calldata data
  ) external;

  function cancelOracleRequest(
    bytes32 requestId,
    uint256 payment,
    bytes4 callbackFunctionId,
    uint256 expiration
  ) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface ENSInterface {
  // Logged when the owner of a node assigns a new owner to a subnode.
  event NewOwner(bytes32 indexed node, bytes32 indexed label, address owner);

  // Logged when the owner of a node transfers ownership to a new account.
  event Transfer(bytes32 indexed node, address owner);

  // Logged when the resolver for a node changes.
  event NewResolver(bytes32 indexed node, address resolver);

  // Logged when the TTL of a node changes
  event NewTTL(bytes32 indexed node, uint64 ttl);

  function setSubnodeOwner(
    bytes32 node,
    bytes32 label,
    address owner
  ) external;

  function setResolver(bytes32 node, address resolver) external;

  function setOwner(bytes32 node, address owner) external;

  function setTTL(bytes32 node, uint64 ttl) external;

  function owner(bytes32 node) external view returns (address);

  function resolver(bytes32 node) external view returns (address);

  function ttl(bytes32 node) external view returns (uint64);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface LinkTokenInterface {
  function allowance(address owner, address spender) external view returns (uint256 remaining);

  function approve(address spender, uint256 value) external returns (bool success);

  function balanceOf(address owner) external view returns (uint256 balance);

  function decimals() external view returns (uint8 decimalPlaces);

  function decreaseApproval(address spender, uint256 addedValue) external returns (bool success);

  function increaseApproval(address spender, uint256 subtractedValue) external;

  function name() external view returns (string memory tokenName);

  function symbol() external view returns (string memory tokenSymbol);

  function totalSupply() external view returns (uint256 totalTokensIssued);

  function transfer(address to, uint256 value) external returns (bool success);

  function transferAndCall(
    address to,
    uint256 value,
    bytes calldata data
  ) external returns (bool success);

  function transferFrom(
    address from,
    address to,
    uint256 value
  ) external returns (bool success);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./OracleInterface.sol";
import "./ChainlinkRequestInterface.sol";

interface OperatorInterface is OracleInterface, ChainlinkRequestInterface {
  function operatorRequest(
    address sender,
    uint256 payment,
    bytes32 specId,
    bytes4 callbackFunctionId,
    uint256 nonce,
    uint256 dataVersion,
    bytes calldata data
  ) external;

  function fulfillOracleRequest2(
    bytes32 requestId,
    uint256 payment,
    address callbackAddress,
    bytes4 callbackFunctionId,
    uint256 expiration,
    bytes calldata data
  ) external returns (bool);

  function ownerTransferAndCall(
    address to,
    uint256 value,
    bytes calldata data
  ) external returns (bool success);

  function distributeFunds(address payable[] calldata receivers, uint256[] calldata amounts) external payable;

  function getAuthorizedSenders() external returns (address[] memory);

  function setAuthorizedSenders(address[] calldata senders) external;

  function getForwarder() external returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface OracleInterface {
  function fulfillOracleRequest(
    bytes32 requestId,
    uint256 payment,
    address callbackAddress,
    bytes4 callbackFunctionId,
    uint256 expiration,
    bytes32 data
  ) external returns (bool);

  function isAuthorizedSender(address node) external view returns (bool);

  function withdraw(address recipient, uint256 amount) external;

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

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface PointerInterface {
  function getAddress() external view returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

/**
 * @dev A library for working with mutable byte buffers in Solidity.
 *
 * Byte buffers are mutable and expandable, and provide a variety of primitives
 * for writing to them. At any time you can fetch a bytes object containing the
 * current contents of the buffer. The bytes object should not be stored between
 * operations, as it may change due to resizing of the buffer.
 */
library BufferChainlink {
  /**
   * @dev Represents a mutable buffer. Buffers have a current value (buf) and
   *      a capacity. The capacity may be longer than the current value, in
   *      which case it can be extended without the need to allocate more memory.
   */
  struct buffer {
    bytes buf;
    uint256 capacity;
  }

  /**
   * @dev Initializes a buffer with an initial capacity.
   * @param buf The buffer to initialize.
   * @param capacity The number of bytes of space to allocate the buffer.
   * @return The buffer, for chaining.
   */
  function init(buffer memory buf, uint256 capacity) internal pure returns (buffer memory) {
    if (capacity % 32 != 0) {
      capacity += 32 - (capacity % 32);
    }
    // Allocate space for the buffer data
    buf.capacity = capacity;
    assembly {
      let ptr := mload(0x40)
      mstore(buf, ptr)
      mstore(ptr, 0)
      mstore(0x40, add(32, add(ptr, capacity)))
    }
    return buf;
  }

  /**
   * @dev Initializes a new buffer from an existing bytes object.
   *      Changes to the buffer may mutate the original value.
   * @param b The bytes object to initialize the buffer with.
   * @return A new buffer.
   */
  function fromBytes(bytes memory b) internal pure returns (buffer memory) {
    buffer memory buf;
    buf.buf = b;
    buf.capacity = b.length;
    return buf;
  }

  function resize(buffer memory buf, uint256 capacity) private pure {
    bytes memory oldbuf = buf.buf;
    init(buf, capacity);
    append(buf, oldbuf);
  }

  function max(uint256 a, uint256 b) private pure returns (uint256) {
    if (a > b) {
      return a;
    }
    return b;
  }

  /**
   * @dev Sets buffer length to 0.
   * @param buf The buffer to truncate.
   * @return The original buffer, for chaining..
   */
  function truncate(buffer memory buf) internal pure returns (buffer memory) {
    assembly {
      let bufptr := mload(buf)
      mstore(bufptr, 0)
    }
    return buf;
  }

  /**
   * @dev Writes a byte string to a buffer. Resizes if doing so would exceed
   *      the capacity of the buffer.
   * @param buf The buffer to append to.
   * @param off The start offset to write to.
   * @param data The data to append.
   * @param len The number of bytes to copy.
   * @return The original buffer, for chaining.
   */
  function write(
    buffer memory buf,
    uint256 off,
    bytes memory data,
    uint256 len
  ) internal pure returns (buffer memory) {
    require(len <= data.length);

    if (off + len > buf.capacity) {
      resize(buf, max(buf.capacity, len + off) * 2);
    }

    uint256 dest;
    uint256 src;
    assembly {
      // Memory address of the buffer data
      let bufptr := mload(buf)
      // Length of existing buffer data
      let buflen := mload(bufptr)
      // Start address = buffer address + offset + sizeof(buffer length)
      dest := add(add(bufptr, 32), off)
      // Update buffer length if we're extending it
      if gt(add(len, off), buflen) {
        mstore(bufptr, add(len, off))
      }
      src := add(data, 32)
    }

    // Copy word-length chunks while possible
    for (; len >= 32; len -= 32) {
      assembly {
        mstore(dest, mload(src))
      }
      dest += 32;
      src += 32;
    }

    // Copy remaining bytes
    unchecked {
      uint256 mask = (256**(32 - len)) - 1;
      assembly {
        let srcpart := and(mload(src), not(mask))
        let destpart := and(mload(dest), mask)
        mstore(dest, or(destpart, srcpart))
      }
    }

    return buf;
  }

  /**
   * @dev Appends a byte string to a buffer. Resizes if doing so would exceed
   *      the capacity of the buffer.
   * @param buf The buffer to append to.
   * @param data The data to append.
   * @param len The number of bytes to copy.
   * @return The original buffer, for chaining.
   */
  function append(
    buffer memory buf,
    bytes memory data,
    uint256 len
  ) internal pure returns (buffer memory) {
    return write(buf, buf.buf.length, data, len);
  }

  /**
   * @dev Appends a byte string to a buffer. Resizes if doing so would exceed
   *      the capacity of the buffer.
   * @param buf The buffer to append to.
   * @param data The data to append.
   * @return The original buffer, for chaining.
   */
  function append(buffer memory buf, bytes memory data) internal pure returns (buffer memory) {
    return write(buf, buf.buf.length, data, data.length);
  }

  /**
   * @dev Writes a byte to the buffer. Resizes if doing so would exceed the
   *      capacity of the buffer.
   * @param buf The buffer to append to.
   * @param off The offset to write the byte at.
   * @param data The data to append.
   * @return The original buffer, for chaining.
   */
  function writeUint8(
    buffer memory buf,
    uint256 off,
    uint8 data
  ) internal pure returns (buffer memory) {
    if (off >= buf.capacity) {
      resize(buf, buf.capacity * 2);
    }

    assembly {
      // Memory address of the buffer data
      let bufptr := mload(buf)
      // Length of existing buffer data
      let buflen := mload(bufptr)
      // Address = buffer address + sizeof(buffer length) + off
      let dest := add(add(bufptr, off), 32)
      mstore8(dest, data)
      // Update buffer length if we extended it
      if eq(off, buflen) {
        mstore(bufptr, add(buflen, 1))
      }
    }
    return buf;
  }

  /**
   * @dev Appends a byte to the buffer. Resizes if doing so would exceed the
   *      capacity of the buffer.
   * @param buf The buffer to append to.
   * @param data The data to append.
   * @return The original buffer, for chaining.
   */
  function appendUint8(buffer memory buf, uint8 data) internal pure returns (buffer memory) {
    return writeUint8(buf, buf.buf.length, data);
  }

  /**
   * @dev Writes up to 32 bytes to the buffer. Resizes if doing so would
   *      exceed the capacity of the buffer.
   * @param buf The buffer to append to.
   * @param off The offset to write at.
   * @param data The data to append.
   * @param len The number of bytes to write (left-aligned).
   * @return The original buffer, for chaining.
   */
  function write(
    buffer memory buf,
    uint256 off,
    bytes32 data,
    uint256 len
  ) private pure returns (buffer memory) {
    if (len + off > buf.capacity) {
      resize(buf, (len + off) * 2);
    }

    unchecked {
      uint256 mask = (256**len) - 1;
      // Right-align data
      data = data >> (8 * (32 - len));
      assembly {
        // Memory address of the buffer data
        let bufptr := mload(buf)
        // Address = buffer address + sizeof(buffer length) + off + len
        let dest := add(add(bufptr, off), len)
        mstore(dest, or(and(mload(dest), not(mask)), data))
        // Update buffer length if we extended it
        if gt(add(off, len), mload(bufptr)) {
          mstore(bufptr, add(off, len))
        }
      }
    }
    return buf;
  }

  /**
   * @dev Writes a bytes20 to the buffer. Resizes if doing so would exceed the
   *      capacity of the buffer.
   * @param buf The buffer to append to.
   * @param off The offset to write at.
   * @param data The data to append.
   * @return The original buffer, for chaining.
   */
  function writeBytes20(
    buffer memory buf,
    uint256 off,
    bytes20 data
  ) internal pure returns (buffer memory) {
    return write(buf, off, bytes32(data), 20);
  }

  /**
   * @dev Appends a bytes20 to the buffer. Resizes if doing so would exceed
   *      the capacity of the buffer.
   * @param buf The buffer to append to.
   * @param data The data to append.
   * @return The original buffer, for chhaining.
   */
  function appendBytes20(buffer memory buf, bytes20 data) internal pure returns (buffer memory) {
    return write(buf, buf.buf.length, bytes32(data), 20);
  }

  /**
   * @dev Appends a bytes32 to the buffer. Resizes if doing so would exceed
   *      the capacity of the buffer.
   * @param buf The buffer to append to.
   * @param data The data to append.
   * @return The original buffer, for chaining.
   */
  function appendBytes32(buffer memory buf, bytes32 data) internal pure returns (buffer memory) {
    return write(buf, buf.buf.length, data, 32);
  }

  /**
   * @dev Writes an integer to the buffer. Resizes if doing so would exceed
   *      the capacity of the buffer.
   * @param buf The buffer to append to.
   * @param off The offset to write at.
   * @param data The data to append.
   * @param len The number of bytes to write (right-aligned).
   * @return The original buffer, for chaining.
   */
  function writeInt(
    buffer memory buf,
    uint256 off,
    uint256 data,
    uint256 len
  ) private pure returns (buffer memory) {
    if (len + off > buf.capacity) {
      resize(buf, (len + off) * 2);
    }

    uint256 mask = (256**len) - 1;
    assembly {
      // Memory address of the buffer data
      let bufptr := mload(buf)
      // Address = buffer address + off + sizeof(buffer length) + len
      let dest := add(add(bufptr, off), len)
      mstore(dest, or(and(mload(dest), not(mask)), data))
      // Update buffer length if we extended it
      if gt(add(off, len), mload(bufptr)) {
        mstore(bufptr, add(off, len))
      }
    }
    return buf;
  }

  /**
   * @dev Appends a byte to the end of the buffer. Resizes if doing so would
   * exceed the capacity of the buffer.
   * @param buf The buffer to append to.
   * @param data The data to append.
   * @return The original buffer.
   */
  function appendInt(
    buffer memory buf,
    uint256 data,
    uint256 len
  ) internal pure returns (buffer memory) {
    return writeInt(buf, buf.buf.length, data, len);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.4.19;

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

library CBORChainlink {
  using BufferChainlink for BufferChainlink.buffer;

  uint8 private constant MAJOR_TYPE_INT = 0;
  uint8 private constant MAJOR_TYPE_NEGATIVE_INT = 1;
  uint8 private constant MAJOR_TYPE_BYTES = 2;
  uint8 private constant MAJOR_TYPE_STRING = 3;
  uint8 private constant MAJOR_TYPE_ARRAY = 4;
  uint8 private constant MAJOR_TYPE_MAP = 5;
  uint8 private constant MAJOR_TYPE_TAG = 6;
  uint8 private constant MAJOR_TYPE_CONTENT_FREE = 7;

  uint8 private constant TAG_TYPE_BIGNUM = 2;
  uint8 private constant TAG_TYPE_NEGATIVE_BIGNUM = 3;

  function encodeFixedNumeric(BufferChainlink.buffer memory buf, uint8 major, uint64 value) private pure {
    if(value <= 23) {
      buf.appendUint8(uint8((major << 5) | value));
    } else if (value <= 0xFF) {
      buf.appendUint8(uint8((major << 5) | 24));
      buf.appendInt(value, 1);
    } else if (value <= 0xFFFF) {
      buf.appendUint8(uint8((major << 5) | 25));
      buf.appendInt(value, 2);
    } else if (value <= 0xFFFFFFFF) {
      buf.appendUint8(uint8((major << 5) | 26));
      buf.appendInt(value, 4);
    } else {
      buf.appendUint8(uint8((major << 5) | 27));
      buf.appendInt(value, 8);
    }
  }

  function encodeIndefiniteLengthType(BufferChainlink.buffer memory buf, uint8 major) private pure {
    buf.appendUint8(uint8((major << 5) | 31));
  }

  function encodeUInt(BufferChainlink.buffer memory buf, uint value) internal pure {
    if(value > 0xFFFFFFFFFFFFFFFF) {
      encodeBigNum(buf, value);
    } else {
      encodeFixedNumeric(buf, MAJOR_TYPE_INT, uint64(value));
    }
  }

  function encodeInt(BufferChainlink.buffer memory buf, int value) internal pure {
    if(value < -0x10000000000000000) {
      encodeSignedBigNum(buf, value);
    } else if(value > 0xFFFFFFFFFFFFFFFF) {
      encodeBigNum(buf, uint(value));
    } else if(value >= 0) {
      encodeFixedNumeric(buf, MAJOR_TYPE_INT, uint64(uint256(value)));
    } else {
      encodeFixedNumeric(buf, MAJOR_TYPE_NEGATIVE_INT, uint64(uint256(-1 - value)));
    }
  }

  function encodeBytes(BufferChainlink.buffer memory buf, bytes memory value) internal pure {
    encodeFixedNumeric(buf, MAJOR_TYPE_BYTES, uint64(value.length));
    buf.append(value);
  }

  function encodeBigNum(BufferChainlink.buffer memory buf, uint value) internal pure {
    buf.appendUint8(uint8((MAJOR_TYPE_TAG << 5) | TAG_TYPE_BIGNUM));
    encodeBytes(buf, abi.encode(value));
  }

  function encodeSignedBigNum(BufferChainlink.buffer memory buf, int input) internal pure {
    buf.appendUint8(uint8((MAJOR_TYPE_TAG << 5) | TAG_TYPE_NEGATIVE_BIGNUM));
    encodeBytes(buf, abi.encode(uint256(-1 - input)));
  }

  function encodeString(BufferChainlink.buffer memory buf, string memory value) internal pure {
    encodeFixedNumeric(buf, MAJOR_TYPE_STRING, uint64(bytes(value).length));
    buf.append(bytes(value));
  }

  function startArray(BufferChainlink.buffer memory buf) internal pure {
    encodeIndefiniteLengthType(buf, MAJOR_TYPE_ARRAY);
  }

  function startMap(BufferChainlink.buffer memory buf) internal pure {
    encodeIndefiniteLengthType(buf, MAJOR_TYPE_MAP);
  }

  function endSequence(BufferChainlink.buffer memory buf) internal pure {
    encodeIndefiniteLengthType(buf, MAJOR_TYPE_CONTENT_FREE);
  }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

abstract contract ENSResolver {
  function addr(bytes32 node) public view virtual returns (address);
}

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

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

/**
 * @dev Interface for GToken contract
 */
interface IGToken {
    struct GnsPriceProvider {
        address addr;
        bytes signature;
    }

    struct LockedDeposit {
        address owner;
        uint256 shares; // collateralConfig.precision
        uint256 assetsDeposited; // collateralConfig.precision
        uint256 assetsDiscount; // collateralConfig.precision
        uint256 atTimestamp; // timestamp
        uint256 lockDuration; // timestamp
    }

    struct ContractAddresses {
        address asset;
        address owner; // 2-week timelock contract
        address manager; // 3-day timelock contract
        address admin; // bypasses timelock, access to emergency functions
        address gnsToken;
        address lockedDepositNft;
        address pnlHandler;
        address openTradesPnlFeed;
        GnsPriceProvider gnsPriceProvider;
    }

    struct Meta {
        string name;
        string symbol;
    }

    function manager() external view returns (address);

    function admin() external view returns (address);

    function currentEpoch() external view returns (uint256);

    function currentEpochStart() external view returns (uint256);

    function currentEpochPositiveOpenPnl() external view returns (uint256);

    function updateAccPnlPerTokenUsed(
        uint256 prevPositiveOpenPnl,
        uint256 newPositiveOpenPnl
    ) external returns (uint256);

    function getLockedDeposit(uint256 depositId) external view returns (LockedDeposit memory);

    function sendAssets(uint256 assets, address receiver) external;

    function receiveAssets(uint256 assets, address user) external;

    function distributeReward(uint256 assets) external;

    function tvl() external view returns (uint256);

    function marketCap() external view returns (uint256);

    function shareToAssetsPrice() external view returns (uint256);

    function collateralConfig() external view returns (uint128, uint128);

    event ManagerUpdated(address newValue);
    event AdminUpdated(address newValue);
    event PnlHandlerUpdated(address newValue);
    event OpenTradesPnlFeedUpdated(address newValue);
    event GnsPriceProviderUpdated(GnsPriceProvider newValue);
    event WithdrawLockThresholdsPUpdated(uint256[2] newValue);
    event MaxAccOpenPnlDeltaUpdated(uint256 newValue);
    event MaxDailyAccPnlDeltaUpdated(uint256 newValue);
    event MaxSupplyIncreaseDailyPUpdated(uint256 newValue);
    event LossesBurnPUpdated(uint256 newValue);
    event MaxGnsSupplyMintDailyPUpdated(uint256 newValue);
    event MaxDiscountPUpdated(uint256 newValue);
    event MaxDiscountThresholdPUpdated(uint256 newValue);

    event CurrentMaxSupplyUpdated(uint256 newValue);
    event DailyAccPnlDeltaReset();
    event ShareToAssetsPriceUpdated(uint256 newValue);
    event OpenTradesPnlFeedCallFailed();

    event WithdrawRequested(
        address indexed sender,
        address indexed owner,
        uint256 shares,
        uint256 currEpoch,
        uint256 indexed unlockEpoch
    );
    event WithdrawCanceled(
        address indexed sender,
        address indexed owner,
        uint256 shares,
        uint256 currEpoch,
        uint256 indexed unlockEpoch
    );

    event DepositLocked(address indexed sender, address indexed owner, uint256 depositId, LockedDeposit d);
    event DepositUnlocked(
        address indexed sender,
        address indexed receiver,
        address indexed owner,
        uint256 depositId,
        LockedDeposit d
    );

    event RewardDistributed(address indexed sender, uint256 assets);

    event AssetsSent(address indexed sender, address indexed receiver, uint256 assets);
    event AssetsReceived(address indexed sender, address indexed user, uint256 assets, uint256 assetsLessDeplete);

    event Depleted(address indexed sender, uint256 assets, uint256 amountGns);
    event Refilled(address indexed sender, uint256 assets, uint256 amountGns);

    event AccPnlPerTokenUsedUpdated(
        address indexed sender,
        uint256 indexed newEpoch,
        uint256 prevPositiveOpenPnl,
        uint256 newPositiveOpenPnl,
        uint256 newEpochPositiveOpenPnl,
        int256 newAccPnlPerTokenUsed
    );

    error OnlyManager();
    error OnlyTradingPnlHandler();
    error OnlyPnlFeed();
    error AddressZero();
    error PriceZero();
    error ValueZero();
    error BytesZero();
    error NoActiveDiscount();
    error BelowMin();
    error AboveMax();
    error WrongValue();
    error WrongValues();
    error GnsPriceCallFailed();
    error GnsTokenPriceZero();
    error PendingWithdrawal();
    error EndOfEpoch();
    error NotAllowed();
    error NoDiscount();
    error NotUnlocked();
    error NotEnoughAssets();
    error MaxDailyPnl();
    error NotUnderCollateralized();
    error AboveInflationLimit();

    // Ownable
    error OwnableInvalidOwner(address owner);

    // ERC4626
    error ERC4626ExceededMaxDeposit();
    error ERC4626ExceededMaxMint();
    error ERC4626ExceededMaxWithdraw();
    error ERC4626ExceededMaxRedeem();
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

/**
 * @dev Interface for GTokenOpenPnlFeed contract
 */
interface IGTokenOpenPnlFeed {
    struct Request {
        bool initiated;
        bool active;
        uint256 linkFeePerNode;
    }

    function nextEpochValuesRequestCount() external view returns (uint256);

    function newOpenPnlRequestOrEpoch() external;

    function fulfill(bytes32 requestId, int256 value) external;

    event NumberParamUpdated(string name, uint256 newValue);
    event OracleUpdated(uint256 index, address newValue);
    event OraclesUpdated(address[] newValues);
    event JobUpdated(bytes32 newValue);

    event NextEpochValuesReset(uint256 indexed currEpoch, uint256 requestsResetCount);

    event NewEpochForced(uint256 indexed newEpoch);

    event NextEpochValueRequested(
        uint256 indexed currEpoch,
        uint256 indexed requestId,
        bytes32 job,
        uint256 oraclesCount,
        uint256 linkFeePerNode
    );

    event NewEpoch(
        uint256 indexed newEpoch,
        uint256 indexed requestId,
        int256[] epochMedianValues,
        int256 epochAverageValue,
        uint256 newEpochPositiveOpenPnl
    );

    event RequestValueReceived(
        bool isLate,
        uint256 indexed currEpoch,
        uint256 indexed requestId,
        bytes32 oracleRequestId,
        address indexed oracle,
        int256 requestValue,
        uint256 linkFee
    );

    event RequestMedianValueSet(
        uint256 indexed currEpoch,
        uint256 indexed requestId,
        int256[] requestValues,
        int256 medianValue
    );
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

/**
 * @dev Interface for ownable contracts
 */
interface IOwnable {
    function owner() external view returns (address);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 800
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"uint256","name":"_LINK_FEE_BALANCE_DIVIDER","type":"uint256"},{"internalType":"address","name":"_linkToken","type":"address"},{"internalType":"contract IGToken","name":"_gToken","type":"address"},{"internalType":"address[]","name":"_oracles","type":"address[]"},{"internalType":"bytes32","name":"_job","type":"bytes32"},{"internalType":"uint256","name":"_minAnswers","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"id","type":"bytes32"}],"name":"ChainlinkCancelled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"id","type":"bytes32"}],"name":"ChainlinkFulfilled","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"id","type":"bytes32"}],"name":"ChainlinkRequested","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bytes32","name":"newValue","type":"bytes32"}],"name":"JobUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"newEpoch","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"requestId","type":"uint256"},{"indexed":false,"internalType":"int256[]","name":"epochMedianValues","type":"int256[]"},{"indexed":false,"internalType":"int256","name":"epochAverageValue","type":"int256"},{"indexed":false,"internalType":"uint256","name":"newEpochPositiveOpenPnl","type":"uint256"}],"name":"NewEpoch","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"newEpoch","type":"uint256"}],"name":"NewEpochForced","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"currEpoch","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"requestId","type":"uint256"},{"indexed":false,"internalType":"bytes32","name":"job","type":"bytes32"},{"indexed":false,"internalType":"uint256","name":"oraclesCount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"linkFeePerNode","type":"uint256"}],"name":"NextEpochValueRequested","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"currEpoch","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"requestsResetCount","type":"uint256"}],"name":"NextEpochValuesReset","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"name","type":"string"},{"indexed":false,"internalType":"uint256","name":"newValue","type":"uint256"}],"name":"NumberParamUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"index","type":"uint256"},{"indexed":false,"internalType":"address","name":"newValue","type":"address"}],"name":"OracleUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address[]","name":"newValues","type":"address[]"}],"name":"OraclesUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"currEpoch","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"requestId","type":"uint256"},{"indexed":false,"internalType":"int256[]","name":"requestValues","type":"int256[]"},{"indexed":false,"internalType":"int256","name":"medianValue","type":"int256"}],"name":"RequestMedianValueSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"bool","name":"isLate","type":"bool"},{"indexed":true,"internalType":"uint256","name":"currEpoch","type":"uint256"},{"indexed":true,"internalType":"uint256","name":"requestId","type":"uint256"},{"indexed":false,"internalType":"bytes32","name":"oracleRequestId","type":"bytes32"},{"indexed":true,"internalType":"address","name":"oracle","type":"address"},{"indexed":false,"internalType":"int256","name":"requestValue","type":"int256"},{"indexed":false,"internalType":"uint256","name":"linkFee","type":"uint256"}],"name":"RequestValueReceived","type":"event"},{"inputs":[],"name":"LINK_FEE_BALANCE_DIVIDER","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"forceNewEpoch","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"requestId","type":"bytes32"},{"internalType":"int256","name":"value","type":"int256"}],"name":"fulfill","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"gToken","outputs":[{"internalType":"contract IGToken","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"job","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastRequestId","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minAnswers","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"newOpenPnlRequestOrEpoch","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"nextEpochValues","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nextEpochValuesLastRequest","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nextEpochValuesRequestCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"oracles","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"requestAnswers","outputs":[{"internalType":"int256","name":"","type":"int256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"name":"requestIds","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"requests","outputs":[{"internalType":"bool","name":"initiated","type":"bool"},{"internalType":"bool","name":"active","type":"bool"},{"internalType":"uint256","name":"linkFeePerNode","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"requestsCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"requestsEvery","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"requestsStart","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"resetNextEpochValueRequests","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"newValue","type":"bytes32"}],"name":"updateJob","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newValue","type":"uint256"}],"name":"updateMinAnswers","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_index","type":"uint256"},{"internalType":"address","name":"newValue","type":"address"}],"name":"updateOracle","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"newValues","type":"address[]"}],"name":"updateOracles","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newValue","type":"uint256"}],"name":"updateRequestsCount","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newValue","type":"uint256"}],"name":"updateRequestsEvery","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newRequestsStart","type":"uint256"},{"internalType":"uint256","name":"newRequestsEvery","type":"uint256"},{"internalType":"uint256","name":"newRequestsCount","type":"uint256"}],"name":"updateRequestsInfoBatch","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"newValue","type":"uint256"}],"name":"updateRequestsStart","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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