Lee Sang-Heon

// 스레드풀 크기별 채널 분할하여 병렬 처리
int threadPoolSize = MESSAGE_THREAD_POOL_SIZE;
int channelsPerThread = (int) Math.ceil((double) activeChannelInfos.size() / threadPoolSize);

// 각 채널별 완료 추적을 위한 카운터
CountDownLatch messageCompletionLatch = new CountDownLatch(activeChannelInfos.size());

// 채널을 스레드별로 분할하여 병렬 처리
for (int i = 0; i < activeChannelInfos.size(); i += channelsPerThread) {
    final List<ChannelInfo> channelShard = activeChannelInfos.subList(startIndex, endIndex);
    
    messageExecutor.submit(() -> {
        // 이 샤드의 채널들에 순차 전송
        for (ChannelInfo channelInfo : channelShard) {
            channel.sendMessageEmbeds(embed).queue(
                success -> messageCompletionLatch.countDown(),
                failure -> {
                    String failureReason = getFailureReason(failure);
                    // 에러 타입별 채널 상태 관리
                    messageCompletionLatch.countDown();
                }
            );
        }
    });
}

// GetCharacterBasicAPI.java - API 호출 및 JSON 파싱
public static String[] getCharacterInfo(String name) {
    // OCID 획득
    String ocid = GetOcidAPI.getOcid(name);
    if(ocid.equals("error")) return null;
    
    // API 호출 및 데이터 파싱
    String url = NexonOpenAPIConfig.base_url + "character/basic?ocid=" + ocid;
    String jsonStr = fetchDataFromUrl(url);
    
    if(jsonStr.equals("error")) {
        return new String[] { "API is in Error" };
    }
    
    Gson gson = new Gson();
    Map<String, Object> map = gson.fromJson(jsonStr, Map.class);
    
    // 데이터 가공 및 반환
    String worldImageUrl = worldImageUrlTable(map.get("world_name").toString());
    String level = "Lv." + (int)(Double.parseDouble(map.get("character_level").toString())) 
                  + " (" + map.get("character_exp_rate").toString() + "%)";
    String imageUrl = map.get("character_image").toString().replaceAll("https://", "http://");
    
    return new String[] {worldImageUrl, level, job, popular, guild, updated, userName, imageUrl, ocid};
}

private static String fetchDataFromUrl(String url) {
    try {
        Document doc = Jsoup.connect(url)
                .header("x-nxopen-api-key", NexonOpenAPIConfig.API_KEY)
                .ignoreContentType(true).get();
        
        return doc.select("body").text();
    } catch (Exception e) {
        System.out.println("ERROR :: " + url);
        e.printStackTrace();
        return "error";
    }
}

// BigDecimal을 사용한 정밀 경험치 계산
private static String upExpCalc(int sLevel, int eLevel, double sPercent, double ePercent) {
    BigDecimal exp = new BigDecimal(0);
    
    for(int i = sLevel; i <= eLevel; i++) {
        if(i == sLevel) {
            BigDecimal tmp = ExpTables.calcExpPercentToDecimal(sLevel, 
                          (Math.round((100.0 - sPercent) * 1000) / 1000.0));
            exp = exp.add(tmp);
        } else if(i == eLevel) {
            BigDecimal tmp = ExpTables.calcExpPercentToDecimal(eLevel, 
                          (Math.round(ePercent * 1000) / 1000.0));
            exp = exp.add(tmp);
        } else {
            exp = exp.add(ExpTables.expTable()[i - 200]);
        }
    }
    
    return exp.setScale(0, RoundingMode.HALF_UP).toString();
}

// 슬래시 커맨드 처리 - 스타포스 시뮬레이터
if(e.getName().equals("스타포스")) {
    e.deferReply().queue();
    
    // 파라미터 검증
    if(option1 == null || option2 == null || /* ... 기타 옵션들 */) {
        e.getHook().sendMessageEmbeds(mapleUserTypingFail()).queue();
        return;
    }
    
    // 즉시 대기 메시지 전송 후 백그라운드 처리
    e.getHook().sendMessageEmbeds(mapleStarForceSimulatorWaiting()).queue(hook -> {
        mapleStarForceSimulatorThreading(level, start, end, starCatch, retry, 
                                       preventDestroy, mvpGrade, isPCRoom, eventType, e, hook);
        System.out.println("Waiting Message Send Success :: " + Main.getNowTimeOnly());
    });
}

// 비동기 시뮬레이션 처리
void mapleStarForceSimulatorThreading(@params) {
    new Timer().schedule(new TimerTask() {
        @Override
        public void run() {
            try {
                e.getHook().editMessageEmbedsById(hook.getId(), 
                    mapleNewStarForceSimulator(level, start, end, starCatch, retry, 
                                             preventDestroy, eventType, mvpGrade, isPCRoom)).queue();
            } catch (Exception ex) {
                e.getHook().editMessageEmbedsById(hook.getId(), 
                    mapleStarForceSimulatorFailed()).queue();
                ex.printStackTrace();
            }
        }
    }, 0);
}

// 스타포스 시뮬레이션 결과 임베드 생성
MessageEmbed mapleNewStarForceSimulator(@params) {
    MapleNewStarForceSimulator mscs = new MapleNewStarForceSimulator(level, start, end, 
                                                                   starCatch, retry, preventDestroy, eventType, mvpGrade, isPCRoom);
    maple.MapleNewStarForceSimulator.ReturnNode n = mscs.calculate();
    
    if (n.getCount() == -1) {
        return mapleStarForceSimulatorErrorMessage();
    }
    
    EmbedBuilder eb = new EmbedBuilder();
    eb.setAuthor("스타포스 시뮬레이터");
    eb.setColor(new Color(255, 192, 203));
    
    // 이벤트별 상세 정보 처리
    String eventTypeText = getEventTypeText(eventType);
    String mvpGradeText = getMvpGradeText(mvpGrade);
    
    if ((n.getDestroyed() == 1) && !retry) {
        eb.setDescription("아쉽지만 아이템이 파괴되었어.");
        eb.addField("파괴 전 마지막 스타포스", n.getEnd() + " 성", false);
    } else {
        eb.setDescription("강화에 성공했어!");
        eb.addField("결과", n.getEnd() + " 성", false);
    }
    
    // 상세 통계 정보 추가
    eb.addField("소모 메소", mesoFormatWithUnit(n.getMeso()), false);
    eb.addField("강화 횟수", mesoFormat(n.getCount()) + " 회", true);
    eb.addField("성공 횟수", mesoFormat(n.getSuccess()) + " 회", true);
    eb.addField("실패 횟수", mesoFormat(n.getFail()) + " 회", true);
    eb.addField("파괴 횟수", mesoFormat(n.getDestroyed()) + " 회", true);
    
    return eb.build();
}

// 숫자만 입력 가능하도록 하는 함수 (생년월일, 전화번호)
const handleNumericInput = (e, fieldName, maxLength, nextFieldRef) => {
    const { value } = e.target;
    const numericValue = value.replace(/[^0-9]/g, "");

    setFormData((prevState) => ({
        ...prevState,
        [fieldName]: numericValue,
    }));

    // 최대 길이에 도달하면 다음 필드로 포커스 이동
    if (numericValue.length === maxLength && nextFieldRef && nextFieldRef.current) {
        nextFieldRef.current.focus();
    }
};

// 폼 유효성 검사
const validateForm = () => {
    const newErrors = {};
    
    // 차량번호 검증 (특별 처리)
    if (formData.carNumber && formData.carNumber.trim() === "없음") {
        // "없음"은 유효한 값이므로 에러에서 제거
        if (newErrors.carNumber) delete newErrors.carNumber;
    } else if (formData.carNumber && formData.carNumber.trim() !== "") {
        const carNumberRegex = /^[\d]{2,3}[가-힣]{1}[\d]{4}$/;
        if (!carNumberRegex.test(formData.carNumber.replace(/\s+/g, ""))) {
            newErrors.carNumber = "올바른 차량번호 형식이 아닙니다. (예: 12가1234)";
        }
    }
    
    return newErrors;
};

// 상태 우선순위 매핑으로 정렬 최적화
const STATUS_PRIORITY = {
    enrolled: 1,    // 승인대기
    approved: 2,    // 승인완료  
    canceled: 3,    // 승인취소
    complete: 4     // 과정수료
};

// 필터링된 데이터 정렬
const filteredEnrollments = enrollments
    .filter((item) => {
        const nameMatch = enrollmentRequest.applicant_name
            .toLowerCase().includes(nameFilter.toLowerCase());
        const statusMatch = statusFilter === "all" || 
            enrollment.status === getStatusCodeFromFilter(statusFilter);
        const targetAudienceMatch = targetAudienceFilter === "all" || 
            courseSummary.target_audience === targetAudienceFilter;
        
        return nameMatch && statusMatch && targetAudienceMatch;
    })
    .sort((a, b) => {
        // 상태 우선순위에 따라 정렬
        const statusPriorityA = STATUS_PRIORITY[a.enrollment.status] || 999;
        const statusPriorityB = STATUS_PRIORITY[b.enrollment.status] || 999;
        
        if (statusPriorityA !== statusPriorityB) {
            return statusPriorityA - statusPriorityB;
        }
        
        // 같은 상태면 강의 시작일 기준 정렬
        return new Date(a.course_summary.start_date) - new Date(b.course_summary.start_date);
    });

@app.route('/api/message', methods=['POST'])
def message():
    content = request.get_json()
    user_input = content['userRequest']['utterance'].replace("\n", "")
    
    # 의도 파악
    intention_predict = intention_understanding_instance.intentionPrediction(user_input)
    intention_correct = intention_predict in [3, 4, 6]
    
    if not intention_correct:
        return jsonify(makeMessage(data=None, type=4))
    
    # 단어 대체 및 예외 처리
    user_input = alterWords(user_input.replace(" ", "").strip())
    exception_type, exception_word = findException(user_input.replace(" ", "").upper().strip())
    
    # 종목명 및 분야 체크
    if exception_type == -1:
        found_word = checker.check_words(user_input.replace(" ","").upper())
        if found_word is not None:
            try:
                # 분야 데이터 처리
                messageData, stock_count = findSectorData(found_word)
                return jsonify(makeMessage(data=messageData, type=2, count=stock_count))
            except:
                # 종목 데이터 처리
                messageData, news_count = findStockData(found_word)
                return jsonify(makeMessage(data=messageData, type=1, count=news_count))

private List<CommonSchedule> interval(LocalDateTime startTime, LocalDateTime endTime, 
                                    int duration, List<String> members) {
    List<Interval> combined = new ArrayList<>();
    final int timeSlot = 10;
    
    // 모든 멤버의 일정을 수집
    for (String memberId : members) {
        List<PersonalSchedule> personalSchedules = 
            personalScheduleRepository.findPersonalScheduleByDateRange(memberId, startTime, endTime);
        
        if (personalSchedules != null && personalSchedules.size() > 0) {
            for (PersonalSchedule schedule : personalSchedules) {
                combined.add(new Interval(schedule.getStartTime(), schedule.getEndTime()));
            }
        }
    }
    
    // 인터벌 병합으로 중복 제거 및 최적화
    List<Interval> mergeSchedule = IntervalMerge.intervalMerge(combined);
    Collections.sort(mergeSchedule, Comparator.comparing(Interval::getStart));
    
    // 빈 시간 계산
    List<CommonSchedule> resultSchedule = new ArrayList<>();
    LocalDateTime current = startTime;
    
    for (Interval interval : mergeSchedule) {
        while (current.plusMinutes(duration).isBefore(interval.getStart()) || 
               current.plusMinutes(duration).isEqual(interval.getStart())) {
            resultSchedule.add(new CommonSchedule(current, current.plusMinutes(duration)));
            current = current.plusMinutes(timeSlot);
        }
        
        if (current.isBefore(interval.getEnd())) {
            current = interval.getEnd();
        }
    }
    
    return resultSchedule;
}

// JWT 토큰 자동 갱신 처리
const getGroupList = async (id, navigate) => {
  try {
    const config = {
      headers: {
        Authorization: `Bearer ${accessToken}`,
      },
    };
    const res = await axios.get(
      process.env.REACT_APP_SERVER_URL + `/api/calendar/member/${id}`,
      config
    );
    
    if (res.data.code === 200) {
      return res.data.data;
    } else if (res.data.code === 401 || res.data.data === null) {
      // 토큰 만료 시 자동 갱신 후 재시도
      await refreshAccessToken(navigate);
      return getGroupList(id, navigate);
    } else {
      throw new Error("unknown Error");
    }
  } catch (error) {
    console.error(error);
    Swal.fire({
      position: "center",
      icon: "error", 
      title: "에러!",
      text: "서버와의 통신에 문제가 생겼어요!",
      showConfirmButton: false,
      timer: 1500,
    });
    return [];
  }
};

// 페이지 이동 시 상태 유지
useEffect(() => {
  // 로컬스토리지에서 이전 상태 복원
  const savedState = localStorage.getItem('calendarState');
  if (savedState) {
    const parsedState = JSON.parse(savedState);
    setSelectedDate(parsedState.selectedDate);
    setViewMode(parsedState.viewMode);
  }
}, []);

// 상태 변경 시 자동 저장
useEffect(() => {
  const stateToSave = {
    selectedDate,
    viewMode,
    currentGroup
  };
  localStorage.setItem('calendarState', JSON.stringify(stateToSave));
}, [selectedDate, viewMode, currentGroup]);

// 테트로미노 이동 및 충돌 검사
bool MoveTetromino(Vector3 moveDir, bool isRotate)
{
    Vector3 oldPos = tetrominoNode.transform.position;
    Quaternion oldRot = tetrominoNode.transform.rotation;

    tetrominoNode.transform.position += moveDir;
    if (isRotate) {
        tetrominoNode.transform.rotation *= Quaternion.Euler(0, 0, 90);
    }

    if (!CanMoveTo(tetrominoNode)) {
        // 이동 불가능하면 원래 위치로 복구
        tetrominoNode.transform.position = oldPos;
        tetrominoNode.transform.rotation = oldRot;

        // 아래로 떨어지다가 막힌 경우 보드에 추가
        if ((int)moveDir.y == -1 && (int)moveDir.x == 0 && isRotate == false) {
            AddToBoard(tetrominoNode);
            CheckBoardColumn();
            CreateTetromino();

            // 게임 오버 체크
            if (!CanMoveTo(tetrominoNode)) {
                gameOverPanel.SetActive(true);
            }
        }
        return false;
    }
    return true;
}

// 동적 난이도 조절 시스템
float FallCycleTable()
{
    switch (levelInt) {
        case 1: return isEasyMode ? 2.0f : 1.0f;
        case 2: return isEasyMode ? 1.8f : 0.9f;
        // ... 레벨별 속도 조절
        default: return 0.001f;
    }
}

// GameManager.cs - 게임 상태 관리
public class GameManager : MonoBehaviour
{
    private static GameManager _instance;
    private bool gameOver = false;
    private int stage = 0;
    private bool isStageChanged = false;
    
    public static GameManager Instance
    {
        get
        {
            if (_instance == null)
            {
                _instance = FindObjectOfType(typeof(GameManager)) as GameManager;
            }
            return _instance;
        }
    }
    
    // 게임 상태 프로퍼티들
    public bool GameOver { get; set; }
    public int Stage { get; set; }
    public bool IsStageChanged { get; set; }
}

// PatternManager.cs - 패턴 기반 장애물 생성
void Update()
{
    switch (GameManager.Instance.Stage)
    {
        case 0: min = 0; max = 4; break;
        case 1: min = 5; max = 9; break;
        case 2: min = 10; max = 13; break;
    }
    
    if (GameManager.Instance.IsLandDestroyed)
    {
        if (GameManager.Instance.IsStageChanged)
        {
            // 스테이지별 시작 패턴 생성
            switch (GameManager.Instance.Stage)
            {
                case 0:
                    GameObject newPattern1 = Instantiate(startPattern1, 
                        new Vector3(18f, 0.1f, 0), Quaternion.identity);
                    break;
                // ... 다른 스테이지들
            }
        }
        else
        {
            // 랜덤 패턴 생성
            GameObject newPattern = Instantiate(
                patternList[Random.Range(min, max)], 
                new Vector3(18f, 0.1f, 0), Quaternion.identity);
        }
        GameManager.Instance.IsLandDestroyed = false;
    }
}

// ScrollController.cs - 백그라운드 무한 스크롤
void Update()
{
    if (!GameManager.Instance.GameOver)
    {
        transform.Translate(-mapSpeed * Time.deltaTime, 0, 0);
        
        if (transform.position.x < ifposX)
        {
            transform.Translate(posX, 0, 0); // 위치 리셋으로 무한 스크롤
        }
    }
}

@staticmethod
def _is_hallucination(text: str) -> bool:
    """Whisper 할루시네이션 감지 (보수적): 명백한 반복만 차단"""
    if not text or len(text) < 30:
        return False
    words = text.split()
    if len(words) < 6:
        return False
    counts = Counter(words)
    most_common_word, freq = counts.most_common(1)[0]
    # 2글자 이상 단어가 전체의 70% 이상 → 확실한 할루시네이션
    if len(most_common_word) >= 2 and freq / len(words) >= 0.7:
        return True
    # 연속 4회 이상 같은 단어
    consecutive = 1
    for i in range(1, len(words)):
        if words[i] == words[i - 1] and len(words[i]) >= 2:
            consecutive += 1
            if consecutive >= 4:
                return True
        else:
            consecutive = 1
    return False

// LiveKit Data Channel 위에 회의 내 채팅을 얹은 코드
async sendChatMessage(message, senderName) {
  if (!this.room || !this.room.localParticipant) {
    throw new Error('Room not connected');
  }

  const payload = {
    type: 'chat',
    message,
    sender: senderName,
    timestamp: Date.now(),
  };

  const data = new TextEncoder().encode(JSON.stringify(payload));
  await this.room.localParticipant.publishData(data, { reliable: true });
}

// STOMP 정상/비정상 종료를 구분해 재연결 정책을 제어
onWebSocketClose: (evt) => {
  this.isConnected = false;
  this.subscriptions.clear();
  onDisconnected?.();

  const code = evt?.code;
  if (code && code !== 1000) {
    this._emitError(
      new Error(`WebSocket closed (code=${code}, reason=${evt?.reason || ''})`),
      { step: 'connect:onWebSocketClose', code, reason: evt?.reason },
    );
  }

  // Protocol/policy errors -> stop auto-reconnect to avoid endless loops
  if (code && this.fatalCloseCodes.has(code)) {
    if (this.client) {
      this.client.reconnectDelay = 0;
      this.client.deactivate();
    }
  }
},

// Jenkinsfile 프론트엔드 배포 파이프라인
pipeline {
    agent any
    environment {
        DOCKER_IMAGE = "frontend-app"
        DOCKER_TAG = "${BUILD_NUMBER}"
        GITLAB_CREDENTIAL_ID = 'gitlab-credentials'
    }
    stages {
        stage('Checkout') {
            steps {
                git branch: 'FE_dev', credentialsId: "${GITLAB_CREDENTIAL_ID}",
                    url: 'https://lab.ssafy.com/.../S14P11D207.git'
            }
        }
        stage('Create Env') {
            steps {
                dir('frontend') {
                    sh '''
                        echo "VITE_API_BASE_URL=https://i14d207.p.ssafy.io/api/v1" > .env
                        echo "VITE_OPENVIDU_SERVER_URL=wss://i14d207.p.ssafy.io/livekit" >> .env
                        echo "VITE_WS_BASE_URL=wss://i14d207.p.ssafy.io" >> .env
                        echo "VITE_AI_SERVER_URL=wss://ai.flipped.cloud/asr" >> .env
                    '''
                }
            }
        }
        stage('Build & Deploy') {
            steps {
                sh '''
                    docker build -t ${DOCKER_IMAGE}:${DOCKER_TAG} .
                    docker tag ${DOCKER_IMAGE}:${DOCKER_TAG} ${DOCKER_IMAGE}:latest
                    docker stop frontend-app || true
                    docker rm frontend-app || true
                    docker run -d --name frontend-app -p 3000:80 ${DOCKER_IMAGE}:latest
                '''
            }
        }
    }
}

def enqueue_generation_task(
    task_id: str,
    image_path: Path,
    source_name: str,
    goal_id: str | None,
    pen_mode: str,
    postprocess_enabled: bool,
    input_crop_applied: bool,
    output_autocrop_enabled: bool,
    crop_reference_path: Path | None = None,
    cleanup_paths: list[str] | None = None,
) -> Event:
    start_task(
        task_id, source_name, goal_id, pen_mode,
        postprocess_enabled, input_crop_applied, output_autocrop_enabled,
    )
    ensure_worker_threads_started()

    completion_event = Event()
    with TASKS_LOCK:
        TASK_EVENTS[task_id] = completion_event
        PENDING_TASK_IDS.append(task_id)
        refresh_queue_positions_locked()

    record_admin_event(
        "INFO", "task.queued", "작업이 대기열에 등록되었습니다.",
        task_id=task_id, goal_id=goal_id,
    )

    WORK_QUEUE.put({
        "task_id": task_id,
        "image_path": str(image_path),
        "pen_mode": pen_mode,
        "postprocess_enabled": postprocess_enabled,
        "output_autocrop_enabled": output_autocrop_enabled,
        "crop_reference_path": str(crop_reference_path) if crop_reference_path else None,
        "cleanup_paths": cleanup_paths or [],
    })
    return completion_event


def generation_worker(worker_index: int) -> None:
    while True:
        job = WORK_QUEUE.get()
        task_id = job["task_id"]
        # ... 슬롯 확보 후 헤드리스 브라우저 자동화 + 후처리

@app.route("/api/demo/generate", methods=["POST"])
def api_demo_generate():
    auth_error = require_api_key()
    if auth_error:
        return auth_error

    demo_metadata, demo_error = extract_demo_request_metadata()
    if demo_error:
        return demo_error

    image_file = extract_uploaded_file()
    task_id, _, _, _, _, _, goal_id, idempotency_key, reused_existing, error_response = (
        enqueue_request_file(image_file, enable_idempotency=True)
    )
    if error_response:
        return error_response

    if demo_metadata:
        # 외부 렌더링 실패 시 canned mp4 를 ready 상태로 즉시 매핑
        apply_demo_request_metadata(task_id, demo_metadata)

    payload, _ = build_api_task_payload(task_id, goal_id=goal_id)
    payload = attach_idempotency_metadata(payload, idempotency_key, reused_existing)
    payload["mode"] = "demo"
    status_code = 200 if payload.get("status") == "ready" else 202
    return jsonify(payload), status_code

@Component
public class PlanWeekAllocationCalculator {

    public List<WeekAmount> calculate(LocalDate startDate, LocalDate endDate, Long targetAmount) {
        List<WeekAmount> weeks = new ArrayList<>();
        LocalDate weekStart = startDate.with(DayOfWeek.MONDAY);
        while (!weekStart.isAfter(endDate)) {
            LocalDate weekEnd = weekStart.plusDays(6);
            if (!weekEnd.isBefore(startDate)) {
                weeks.add(new WeekAmount(weekStart, weekEnd, 0L));
            }
            weekStart = weekStart.plusWeeks(1);
        }

        long baseAmount = targetAmount / weeks.size();
        long remainder = targetAmount % weeks.size();
        List<WeekAmount> result = new ArrayList<>(weeks.size());
        for (int i = 0; i < weeks.size(); i++) {
            long amount = baseAmount;
            if (i == weeks.size() - 1) {
                amount += remainder;  // 잔여는 마지막 주에 합산
            }
            WeekAmount week = weeks.get(i);
            result.add(new WeekAmount(week.weekStartDate(), week.weekEndDate(), amount));
        }
        return result;
    }

    public record WeekAmount(LocalDate weekStartDate, LocalDate weekEndDate, Long amount) {}
}

Stream<ChatStreamEvent> postChatStream({
    required String message,
    String? conversationId,
}) async* {
    final body = <String, dynamic>{'message': message};
    if (conversationId != null) body['conversation_id'] = conversationId;

    final response = await _dio.post<ResponseBody>(
        'v1/chatbot/messages/stream',
        data: body,
        options: Options(
            responseType: ResponseType.stream,
            headers: {'Accept': 'text/event-stream'},
            receiveTimeout: const Duration(minutes: 2),
        ),
    );

    final stream = response.data!.stream.map(
        (chunk) => utf8.decode(chunk, allowMalformed: true).replaceAll('\r\n', '\n'),
    );
    yield* _parseResponseChunks(stream);
}

Stream<ChatStreamEvent> _parseResponseChunks(Stream<String> stream) async* {
    String buffer = '';

    await for (final chunk in stream) {
        buffer += chunk;

        // SSE 프레임 단위 처리: 빈 줄 기준으로 분리
        while (buffer.contains('\n\n')) {
            final frameEnd = buffer.indexOf('\n\n');
            final frame = buffer.substring(0, frameEnd);
            buffer = buffer.substring(frameEnd + 2);

            for (final event in _parseFrameEvents(frame)) {
                yield event;  // token / tool_call / complete
            }
        }
    }
}

export interface AgentRunner {
  /** Identifier used in logs and the PYANCHOR_AGENT env var. */
  readonly name: string;

  /** Optional one-time setup before run() is called. */
  prepare?(context: AgentRunContext): Promise<void>;

  /**
   * Drive the agent for a single user request. Yield events as the agent
   * thinks/acts. Return naturally when the agent is done.
   */
  run(input: AgentRunInput, context: AgentRunContext): AsyncIterable<AgentEvent>;
}

export interface AgentRunInput {
  prompt: string;
  targetPath: string;       // route/file hint
  mode: AiEditMode;          // "edit" mutates files; "chat" must answer without writing
  recentMessages: ReadonlyArray<AiEditMessage>;
  jobId: string;
}

export interface AgentRunContext {
  workspaceDir: string;      // scratch dir the agent should mutate
  timeoutMs: number;
  model: string;             // optional hint from PYANCHOR_AGENT_MODEL
  thinking: string;          // optional reasoning level
  signal: AbortSignal;       // adapters MUST observe this for responsive cancel
}

export type AgentEvent =
  | { type: "log"; text: string }
  | { type: "thinking"; text: string }
  | { type: "step"; label: string; description?: string }
  | { type: "result"; summary: string; thinking?: string | null };

import { createHmac, timingSafeEqual } from "node:crypto";

const HEADER_B64URL = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9";

export interface GateJwtPayload {
  iat: number;          // issued-at, unix seconds
  exp: number;          // expires-at, unix seconds
  v: 1;                  // payload version
  sub?: string;         // optional subject (display only, never trusted for auth)
}

export function issueGateJwt(payload: GateJwtPayload, secret: string): string {
  if (!secret) throw new GateJwtError("missing-secret", "HMAC secret unset");
  const body = base64url(JSON.stringify(payload));
  const sig = base64url(
    createHmac("sha256", secret).update(`${HEADER_B64URL}.${body}`).digest()
  );
  return `${HEADER_B64URL}.${body}.${sig}`;
}

export function verifyGateJwt(token: string, secret: string): GateJwtPayload {
  const [h, b, s] = token.split(".");
  if (h !== HEADER_B64URL) throw new GateJwtError("wrong-alg", "non-HS256 header");
  const expected = base64url(
    createHmac("sha256", secret).update(`${h}.${b}`).digest()
  );
  if (!timingSafeEqual(Buffer.from(s), Buffer.from(expected))) {
    throw new GateJwtError("bad-signature", "signature mismatch");
  }
  const payload = JSON.parse(Buffer.from(b, "base64url").toString()) as GateJwtPayload;
  if (Math.floor(Date.now() / 1000) >= payload.exp) {
    throw new GateJwtError("expired", "token expired");
  }
  return payload;
}

function formatRecent(messages: AgentRunInput["recentMessages"]): string {
  return messages
    .slice(-6)
    .map((m) => {
      const role = m.role === "assistant" ? "Assistant" : m.role === "system" ? "System" : "User";
      return `- ${role} [${m.mode}]${m.status ? ` (${m.status})` : ""}: ${m.text}`;
    })
    .join("\n");
}

export function buildBrief(input: AgentRunInput): string {
  const sections: string[] = [];

  if (input.targetPath) sections.push(`Target route: ${input.targetPath}`);
  sections.push(`Mode: ${input.mode}`);

  if (input.recentMessages.length > 0) {
    sections.push(`Recent conversation:\n${formatRecent(input.recentMessages)}`);
  }

  sections.push("");
  sections.push("User request:");
  sections.push(input.prompt);

  if (input.mode === "edit") {
    const framework = selectFramework(pyanchorConfig.framework);
    sections.push("");
    sections.push(
      "Apply the change to the appropriate files in the working directory. " +
      `${framework.briefBuildHint} ` +
      "Do not refactor unrelated areas. Respond in 2-3 lines summarizing the changes."
    );
  }

  return sections.join("\n");
}

// Pollinations adapter HTTP-only.
// Configuration (all optional):
//   PYANCHOR_AGENT=pollinations
//   PYANCHOR_POLLINATIONS_TOKEN=sk_...     // backend bearer token (recommended)
//   PYANCHOR_POLLINATIONS_REFERRER=...     // attribution / tier
//   PYANCHOR_POLLINATIONS_MODEL=nova-fast              // default since v0.38.0
//   PYANCHOR_POLLINATIONS_BASE_URL=https://gen.pollinations.ai
//   PYANCHOR_POLLINATIONS_PATH=/v1/chat/completions
//   PYANCHOR_POLLINATIONS_MAX_TURNS=12

async function runToolLoop(
  input: AgentRunInput,
  context: AgentRunContext,
): AsyncIterable<AgentEvent> {
  const messages = [
    { role: "system", content: SYSTEM_PROMPT },
    { role: "user", content: buildBrief(input) },
  ];

  for (let turn = 0; turn < pyanchorConfig.pollinationsMaxTurns; turn++) {
    const response = await fetch(endpoint, {
      method: "POST",
      headers: bearer(),
      body: JSON.stringify({ model, messages, tools: TOOLS, tool_choice: "auto" }),
      signal: context.signal,
    });
    const choice = (await response.json()).choices[0];
    const calls = choice.message.tool_calls ?? [];

    if (calls.length === 0) {
      yield { type: "result", summary: choice.message.content };
      return;
    }

    for (const call of calls) {
      const result = await dispatch(call, context.workspaceDir);
      yield { type: "step", label: call.function.name, description: result.snippet };
      messages.push(choice.message, { role: "tool", tool_call_id: call.id, content: result.text });
    }
  }
}

// TraceWorkbench.tsx TanStack Query refetchInterval 조건부 설정
// 완료/실패/취소 상태만 남으면 폴링을 멈춰 불필요한 요청을 차단한다.
const { data: traceList } = useQuery({
  queryKey: ["agentTraces", sessionId, page],
  queryFn: () => sessionApi.getAgentTraceList(sessionId, page, TRACE_PAGE_SIZE),
  staleTime: 30_000,
  refetchInterval: (query) => {
    const TERMINAL = ["COMPLETED", "FAILED", "CANCELLED"];
    const hasActive = (query.state.data?.runs ?? [])
      .some((r) => !TERMINAL.includes(r.status));
    return hasActive ? 5000 : false; // 진행 중 있으면 5초, 없으면 중단
  },
});

// 선택된 run 상세도 동일 패턴 진행 중이면 2초마다 spans 갱신
const { data: selectedRunDetail } = useQuery<AgentRunTrace>({
  queryKey: ["agentTraceDetail", sessionId, selectedRunId],
  queryFn: () => sessionApi.getAgentTraceDetail(sessionId, selectedRunId ?? ""),
  enabled: !!selectedRunId,
  staleTime: 30_000,
  refetchInterval: (query) => {
    const TERMINAL = ["COMPLETED", "FAILED", "CANCELLED"];
    const status = query.state.data?.status;
    if (!status || TERMINAL.includes(status)) return false;
    return 2000; // 진행 중이면 2초마다 span 목록 갱신
  },
});

// SubmissionResultPanel.tsx RabbitMQ 큐 도입 후 QUEUED 상태 신규 대응
// QUEUED = 큐 대기 중 / RUNNING = 채점 중 둘 다 "진행 중"으로 표시

const isQueued  = result.rawStatus === "QUEUED";
const isRunning = result.rawStatus === "RUNNING" || isQueued; // QUEUED도 진행 중 취급

// 0.5초마다 now 갱신 → QUEUED 상태에서도 elapsed 타이머 계속 올라감
const [now, setNow] = useState(() => Date.now());
useEffect(() => {
  if (!loading) return;
  const t = setInterval(() => setNow(Date.now()), 500);
  return () => clearInterval(t);
}, [loading]);

// 상태별 안내 문구
const statusLabel = isQueued
  ? result.queuePosition != null
    ? `${result.queuePosition}번째 대기 중 · ${elapsedSec}초 경과`
    : `큐 대기 중 · ${elapsedSec}초 경과`
  : isRunning
    ? `채점 중 · ${elapsedSec}초 경과`
    : `소요 ${elapsedSec}초`;

// IdeShell.tsx 하네스 AGENTS.md 저장 후 즉시 빌드 보장
// ⚠️ 저장만 하고 buildHarness 를 호출하지 않으면 runtime_config_json 이
//    갱신되지 않아 다음 agent run 이 이전 설정으로 동작한다.

// 3) 하네스 빌드 AGENTS.md 는 이 시점에 runtime_config_json 으로 컴파일됨
const buildResult = await sessionApi.buildHarness(sessionId, modelId);
const buildSucceeded = isHarnessBuildSucceeded(
  buildResult.compileStatus,
  buildResult.validErrors?.length ?? 0
);

// 4) store 파일 content 즉시 반영 + 관련 쿼리 캐시 무효화
//    (invalidateQueries 만으론 store .files 가 stale 로 남아 새로고침 필요했던 문제 해결)
hydrateFileContent(targetDisplayPath, markdown, "markdown");
await queryClient.invalidateQueries({ queryKey: ["workspace",    sessionId] });
await queryClient.invalidateQueries({ queryKey: ["session",      sessionId] });
await queryClient.invalidateQueries({ queryKey: ["agentTraces",  sessionId] });

// 5) 적용 결과를 사용자가 즉시 확인할 수 있도록 AGENTS.md 탭 자동 포커스
openTabInEditorGroup(targetDisplayPath);
setActivePath(targetDisplayPath);