import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';

const {
  runAgentProcessMock,
  writeTasksSnapshotMock,
  loggerDebugMock,
  checkGitHubActionsRunMock,
} = vi.hoisted(() => ({
  runAgentProcessMock: vi.fn(async () => ({
    status: 'success' as const,
    result: 'done',
  })),
  writeTasksSnapshotMock: vi.fn(),
  loggerDebugMock: vi.fn(),
  checkGitHubActionsRunMock: vi.fn(
    async (): Promise<{
      terminal: boolean;
      resultSummary: string;
      completionMessage?: string;
    }> => ({
      terminal: false,
      resultSummary: 'GitHub Actions run 123 is in_progress',
    }),
  ),
}));

vi.mock('./agent-error-detection.js', async (importOriginal) => {
  const actual =
    await importOriginal<typeof import('./agent-error-detection.js')>();
  return {
    ...actual,
    classifyRotationTrigger: vi.fn((error?: string | null) => {
      const lower = (error || '').toLowerCase();
      if (
        lower.includes('does not have access to claude') ||
        (lower.includes('failed to authenticate') &&
          lower.includes('403') &&
          lower.includes('terminated'))
      ) {
        return { shouldRetry: true, reason: 'org-access-denied' };
      }
      if (
        lower.includes('429') ||
        lower.includes('rate limit') ||
        lower.includes('hit your limit')
      ) {
        return { shouldRetry: true, reason: '429' };
      }
      return { shouldRetry: false, reason: '' };
    }),
  };
});

vi.mock('./token-rotation.js', () => ({
  rotateToken: vi.fn(() => false),
  getTokenCount: vi.fn(() => 1),
  getCurrentTokenIndex: vi.fn(() => 0),
  markTokenHealthy: vi.fn(),
}));

vi.mock('./token-refresh.js', () => ({
  forceRefreshToken: vi.fn(async () => null),
}));

vi.mock('./codex-token-rotation.js', () => ({
  detectCodexRotationTrigger: vi.fn((error?: string | null) => {
    const lower = (error || '').toLowerCase();
    if (
      lower.includes('429') ||
      lower.includes('rate limit') ||
      lower.includes('oauth token has expired') ||
      lower.includes('authentication_error') ||
      lower.includes('failed to authenticate') ||
      lower.includes('401')
    ) {
      return { shouldRotate: true, reason: 'auth-expired' };
    }
    return { shouldRotate: false, reason: '' };
  }),
  rotateCodexToken: vi.fn(() => false),
  getCodexAccountCount: vi.fn(() => 1),
  markCodexTokenHealthy: vi.fn(),
}));

vi.mock('./agent-runner.js', async () => {
  const actual =
    await vi.importActual<typeof import('./agent-runner.js')>(
      './agent-runner.js',
    );
  return {
    ...actual,
    runAgentProcess: runAgentProcessMock,
    writeTasksSnapshot: writeTasksSnapshotMock,
  };
});

vi.mock('./logger.js', () => {
  const mockLogger = {
    debug: loggerDebugMock,
    info: vi.fn(),
    warn: vi.fn(),
    error: vi.fn(),
    child: (_bindings?: Record<string, unknown>) => mockLogger,
  };
  return {
    logger: mockLogger,
    createScopedLogger: (_bindings?: Record<string, unknown>) => mockLogger,
  };
});

vi.mock('./github-ci.js', () => ({
  checkGitHubActionsRun: checkGitHubActionsRunMock,
  computeGitHubWatcherDelayMs: vi.fn(
    (task: { schedule_value: string; created_at: string }, nowMs: number) => {
      const baseDelayMs = Number.parseInt(task.schedule_value, 10);
      const normalizedBaseDelayMs =
        Number.isFinite(baseDelayMs) && baseDelayMs > 0 ? baseDelayMs : 15_000;
      const createdAtMs = new Date(task.created_at).getTime();
      const elapsedMs = Number.isFinite(createdAtMs)
        ? Math.max(0, nowMs - createdAtMs)
        : 0;

      if (elapsedMs >= 60 * 60 * 1000) {
        return Math.max(normalizedBaseDelayMs, 60_000);
      }
      if (elapsedMs >= 10 * 60 * 1000) {
        return Math.max(normalizedBaseDelayMs, 30_000);
      }
      return normalizedBaseDelayMs;
    },
  ),
  MAX_GITHUB_CONSECUTIVE_ERRORS: 5,
  parseGitHubCiMetadata: vi.fn((raw: string | null | undefined) => {
    if (!raw) return null;
    return JSON.parse(raw);
  }),
  serializeGitHubCiMetadata: vi.fn((metadata: unknown) =>
    JSON.stringify(metadata),
  ),
}));

vi.mock('./service-routing.js', () => ({
  hasReviewerLease: vi.fn(() => false),
}));

import {
  _initTestDatabase,
  createPairedTask,
  createTask,
  getTaskById,
} from './db.js';
import * as codexTokenRotation from './codex-token-rotation.js';
import { TIMEZONE } from './config.js';
import * as serviceRouting from './service-routing.js';
import * as tokenRefresh from './token-refresh.js';
import { createTaskStatusTracker } from './task-status-tracker.js';
import { TASK_STATUS_MESSAGE_PREFIX } from './task-watch-status.js';
import * as tokenRotation from './token-rotation.js';
import {
  _resetSchedulerLoopForTests,
  computeNextRun,
  extractWatchCiTarget,
  isWatchCiTask,
  nudgeSchedulerLoop,
  renderWatchCiStatusMessage,
  runSchedulerTickOnce,
  startSchedulerLoop,
} from './task-scheduler.js';

function formatExpectedTimeLabel(timestampIso: string): string {
  return new Intl.DateTimeFormat('ko-KR', {
    hour: '2-digit',
    minute: '2-digit',
    second: '2-digit',
    hour12: false,
    timeZone: TIMEZONE,
  })
    .format(new Date(timestampIso))
    .replace(/:/g, '시 ')
    .replace(/시 (\d{2})$/, '분 $1초');
}

describe('task scheduler', () => {
  beforeEach(() => {
    _initTestDatabase();
    _resetSchedulerLoopForTests();
    runAgentProcessMock.mockClear();
    writeTasksSnapshotMock.mockClear();
    loggerDebugMock.mockClear();
    checkGitHubActionsRunMock.mockClear();
    checkGitHubActionsRunMock.mockResolvedValue({
      terminal: false,
      resultSummary: 'GitHub Actions run 123 is in_progress',
    });
    // No fallback provider setup needed
    vi.mocked(tokenRotation.getTokenCount).mockReturnValue(1);
    vi.mocked(tokenRotation.getCurrentTokenIndex).mockReturnValue(0);
    vi.mocked(tokenRotation.markTokenHealthy).mockClear();
    vi.mocked(tokenRotation.rotateToken).mockClear();
    vi.mocked(tokenRotation.rotateToken).mockReturnValue(false);
    vi.mocked(tokenRefresh.forceRefreshToken).mockReset();
    vi.mocked(tokenRefresh.forceRefreshToken).mockResolvedValue(null);
    vi.mocked(codexTokenRotation.rotateCodexToken).mockClear();
    vi.mocked(codexTokenRotation.rotateCodexToken).mockReturnValue(false);
    vi.mocked(codexTokenRotation.getCodexAccountCount).mockReturnValue(1);
    vi.mocked(codexTokenRotation.markCodexTokenHealthy).mockClear();
    vi.mocked(serviceRouting.hasReviewerLease).mockReturnValue(false);
    vi.useFakeTimers();
  });

  afterEach(() => {
    vi.useRealTimers();
  });

  it('pauses due tasks with invalid group folders to prevent retry churn', async () => {
    createTask({
      id: 'task-invalid-folder',
      group_folder: '../../outside',
      chat_jid: 'bad@g.us',
      prompt: 'run',
      schedule_type: 'once',
      schedule_value: '2026-02-22T00:00:00.000Z',
      context_mode: 'isolated',
      next_run: new Date(Date.now() - 60_000).toISOString(),
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    const enqueueTask = vi.fn(
      (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        void fn();
      },
    );

    startSchedulerLoop({
      roomBindings: () => ({}),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });

    await vi.advanceTimersByTimeAsync(10);

    const task = getTaskById('task-invalid-folder');
    expect(task?.status).toBe('paused');
  });

  it('enqueues due tasks across agent types in unified service mode', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-claude',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'claude-code',
      prompt: 'claude task',
      schedule_type: 'once',
      schedule_value: dueAt,
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });
    createTask({
      id: 'task-codex',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      prompt: 'codex task',
      schedule_type: 'once',
      schedule_value: dueAt,
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:01.000Z',
    });

    const enqueueTask = vi.fn();

    startSchedulerLoop({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(enqueueTask).toHaveBeenCalledTimes(2);
    expect(
      enqueueTask.mock.calls
        .map(([queueJid, taskId]) => `${queueJid}|${taskId}`)
        .sort(),
    ).toEqual(
      [
        'shared@g.us::task:task-claude|task-claude',
        'shared@g.us::task:task-codex|task-codex',
      ].sort(),
    );
  });

  it('requeues an orphaned review_ready paired task once its CI watcher is gone', async () => {
    createPairedTask({
      id: 'paired-review-ready-orphan',
      chat_jid: 'review@g.us',
      group_folder: 'review-group',
      owner_service_id: 'codex-main',
      reviewer_service_id: 'claude',
      owner_agent_type: 'codex',
      reviewer_agent_type: 'claude-code',
      arbiter_agent_type: null,
      title: null,
      source_ref: 'HEAD',
      plan_notes: null,
      review_requested_at: null,
      round_trip_count: 1,
      status: 'review_ready',
      arbiter_verdict: null,
      arbiter_requested_at: null,
      completion_reason: null,
      owner_failure_count: 0,
      created_at: '2026-02-22T00:00:00.000Z',
      updated_at: '2026-02-22T00:00:01.000Z',
    });

    const enqueueMessageCheck = vi.fn();
    const deps = {
      serviceAgentType: 'codex' as const,
      roomBindings: () => ({}),
      getSessions: () => ({}),
      queue: { enqueueTask: vi.fn(), enqueueMessageCheck } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    };

    await runSchedulerTickOnce(deps);

    expect(enqueueMessageCheck).toHaveBeenCalledTimes(1);
    expect(enqueueMessageCheck).toHaveBeenCalledWith(
      'review@g.us',
      expect.stringContaining('review-group'),
    );

    await runSchedulerTickOnce(deps);
    expect(enqueueMessageCheck).toHaveBeenCalledTimes(1);
  });

  it('can execute one scheduler tick without starting the timer loop', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-single-tick',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      prompt: 'single tick task',
      schedule_type: 'once',
      schedule_value: dueAt,
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    const enqueueTask = vi.fn();

    await runSchedulerTickOnce({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });

    expect(enqueueTask).toHaveBeenCalledTimes(1);
    expect(enqueueTask.mock.calls[0][0]).toBe(
      'shared@g.us::task:task-single-tick',
    );
    expect(enqueueTask.mock.calls[0][1]).toBe('task-single-tick');
  });

  it('marks one-off tasks completed after a successful scheduler run', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-once-success-finalize',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      prompt: 'finalize once task',
      schedule_type: 'once',
      schedule_value: dueAt,
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    let execution: Promise<void> | null = null;
    const enqueueTask = vi.fn(
      (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        execution = fn();
        return execution;
      },
    );

    await runSchedulerTickOnce({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });
    await execution;

    const task = getTaskById('task-once-success-finalize');
    expect(task?.status).toBe('completed');
    expect(task?.next_run).toBeNull();
    expect(task?.last_result).toBe('done');
  });

  it('keeps interval tasks active and reschedules them after an execution error', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-interval-error-retry',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      prompt: 'retry interval task',
      schedule_type: 'interval',
      schedule_value: '60000',
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    (runAgentProcessMock as any).mockResolvedValueOnce({
      status: 'error',
      error: 'scheduler boom',
    });

    let execution: Promise<void> | null = null;
    const enqueueTask = vi.fn(
      (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        execution = fn();
        return execution;
      },
    );

    await runSchedulerTickOnce({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });
    await execution;

    const task = getTaskById('task-interval-error-retry');
    expect(task?.status).toBe('active');
    expect(task?.last_result).toBe('Error: scheduler boom');
    expect(task?.next_run).not.toBe(dueAt);
    expect(task?.next_run).not.toBeNull();
  });

  it('keeps group-context tasks on the chat queue key', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-group-context',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      prompt: 'group context task',
      schedule_type: 'once',
      schedule_value: dueAt,
      context_mode: 'group',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    const enqueueTask = vi.fn();

    startSchedulerLoop({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(enqueueTask).toHaveBeenCalledTimes(1);
    expect(enqueueTask.mock.calls[0][0]).toBe('shared@g.us');
    expect(enqueueTask.mock.calls[0][1]).toBe('task-group-context');
  });

  it('keeps watch_ci tasks on a dedicated queue even in group context', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-watch-group',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      prompt: `
[BACKGROUND CI WATCH]

Watch target:
GitHub Actions run 123456

Check instructions:
Check the run.
      `.trim(),
      schedule_type: 'interval',
      schedule_value: '60000',
      context_mode: 'group',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    const enqueueTask = vi.fn();

    startSchedulerLoop({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(enqueueTask).toHaveBeenCalledTimes(1);
    expect(enqueueTask.mock.calls[0][0]).toBe(
      'shared@g.us::task:task-watch-group',
    );
    expect(enqueueTask.mock.calls[0][1]).toBe('task-watch-group');
  });

  it('suppresses Claude usage banners for scheduled tasks and retries with a rotated account', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-usage-banner',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'claude-code',
      prompt: 'claude task',
      schedule_type: 'once',
      schedule_value: dueAt,
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    vi.mocked(tokenRotation.getTokenCount).mockReturnValue(2);
    vi.mocked(tokenRotation.rotateToken).mockReturnValueOnce(true);

    (runAgentProcessMock as any)
      .mockImplementationOnce(
        async (
          _group: unknown,
          _input: unknown,
          _onProcess: unknown,
          onOutput?: (output: Record<string, unknown>) => Promise<void>,
        ) => {
          await onOutput?.({
            status: 'success',
            phase: 'intermediate',
            result: "You're out of extra usage · resets 4am (Asia/Seoul)",
          });
          await onOutput?.({
            status: 'success',
            result: "You're out of extra usage · resets 4am (Asia/Seoul)",
          });
          return {
            status: 'success',
            result: null,
          };
        },
      )
      .mockImplementationOnce(
        async (
          _group: unknown,
          _input: unknown,
          _onProcess: unknown,
          onOutput?: (output: Record<string, unknown>) => Promise<void>,
        ) => {
          await onOutput?.({
            status: 'success',
            result: 'rotated scheduled task response',
          });
          return {
            status: 'success',
            result: null,
          };
        },
      );

    const enqueueTask = vi.fn(
      (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        void fn();
      },
    );
    const sendMessage = vi.fn(async () => {});

    startSchedulerLoop({
      serviceAgentType: 'claude-code',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Claude',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'claude-code',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage,
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(runAgentProcessMock).toHaveBeenCalledTimes(2);
    expect(tokenRotation.rotateToken).toHaveBeenCalledTimes(1);
    expect(tokenRotation.markTokenHealthy).toHaveBeenCalledTimes(1);
    // No fallback cooldown to check
    expect(sendMessage).toHaveBeenCalledTimes(1);
    expect(sendMessage).toHaveBeenCalledWith(
      'shared@g.us',
      'rotated scheduled task response',
    );
  });

  it('suppresses Claude OAuth expiry banners for scheduled tasks and retries with a rotated account', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-auth-expired-banner',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'claude-code',
      prompt: 'claude task',
      schedule_type: 'once',
      schedule_value: dueAt,
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    vi.mocked(tokenRotation.getTokenCount).mockReturnValue(2);
    vi.mocked(tokenRotation.rotateToken).mockReturnValueOnce(true);

    (runAgentProcessMock as any)
      .mockImplementationOnce(
        async (
          _group: unknown,
          _input: unknown,
          _onProcess: unknown,
          onOutput?: (output: Record<string, unknown>) => Promise<void>,
        ) => {
          await onOutput?.({
            status: 'success',
            phase: 'intermediate',
            result:
              'Failed to authenticate. API Error: 401 {"type":"error","error":{"type":"authentication_error","message":"Invalid authentication credentials"}}',
          });
          await onOutput?.({
            status: 'success',
            result:
              'Failed to authenticate. API Error: 401 {"type":"error","error":{"type":"authentication_error","message":"Invalid authentication credentials"}}',
          });
          return {
            status: 'success',
            result: null,
          };
        },
      )
      .mockImplementationOnce(
        async (
          _group: unknown,
          _input: unknown,
          _onProcess: unknown,
          onOutput?: (output: Record<string, unknown>) => Promise<void>,
        ) => {
          await onOutput?.({
            status: 'success',
            result: 'rotated scheduled task auth response',
          });
          return {
            status: 'success',
            result: null,
          };
        },
      );

    const enqueueTask = vi.fn(
      (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        void fn();
      },
    );
    const sendMessage = vi.fn(async () => {});

    startSchedulerLoop({
      serviceAgentType: 'claude-code',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Claude',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'claude-code',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage,
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(runAgentProcessMock).toHaveBeenCalledTimes(2);
    expect(tokenRotation.rotateToken).toHaveBeenCalledTimes(1);
    expect(tokenRotation.markTokenHealthy).toHaveBeenCalledTimes(1);
    // No fallback cooldown to check
    expect(sendMessage).toHaveBeenCalledTimes(1);
    expect(sendMessage).toHaveBeenCalledWith(
      'shared@g.us',
      'rotated scheduled task auth response',
    );
  });

  it('suppresses Claude 502 HTML for scheduled tasks and falls back without forwarding it', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-claude-502-fallback',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'claude-code',
      prompt: 'claude task',
      schedule_type: 'once',
      schedule_value: dueAt,
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    (runAgentProcessMock as any).mockImplementationOnce(
      async (
        _group: unknown,
        _input: unknown,
        _onProcess: unknown,
        onOutput?: (output: Record<string, unknown>) => Promise<void>,
      ) => {
        await onOutput?.({
          status: 'success',
          phase: 'intermediate',
          result:
            'API Error: 502 <html><head><title>502 Bad Gateway</title></head><body><center><h1>502 Bad Gateway</h1></center><hr><center>cloudflare</center></body></html>',
        });
        await onOutput?.({
          status: 'success',
          result:
            'API Error: 502 <html><head><title>502 Bad Gateway</title></head><body><center><h1>502 Bad Gateway</h1></center><hr><center>cloudflare</center></body></html>',
        });
        return {
          status: 'success',
          result: null,
        };
      },
    );

    const enqueueTask = vi.fn(
      (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        void fn();
      },
    );
    const sendMessage = vi.fn(async () => {});

    startSchedulerLoop({
      serviceAgentType: 'claude-code',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Claude',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'claude-code',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage,
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(runAgentProcessMock).toHaveBeenCalledTimes(1);
    expect(tokenRotation.rotateToken).not.toHaveBeenCalled();
    // No fallback — 502 results in error without retrying on another provider
  });

  it('suppresses Claude org access denied banners for scheduled tasks and retries with a rotated account', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-org-access-denied-banner',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'claude-code',
      prompt: 'claude task',
      schedule_type: 'once',
      schedule_value: dueAt,
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    vi.mocked(tokenRotation.getTokenCount).mockReturnValue(2);
    vi.mocked(tokenRotation.rotateToken).mockReturnValueOnce(true);

    (runAgentProcessMock as any)
      .mockImplementationOnce(
        async (
          _group: unknown,
          _input: unknown,
          _onProcess: unknown,
          onOutput?: (output: Record<string, unknown>) => Promise<void>,
        ) => {
          await onOutput?.({
            status: 'success',
            phase: 'intermediate',
            result:
              'Your organization does not have access to Claude. Please login again or contact your administrator.',
          });
          await onOutput?.({
            status: 'success',
            result:
              'Your organization does not have access to Claude. Please login again or contact your administrator.',
          });
          return {
            status: 'success',
            result: null,
          };
        },
      )
      .mockImplementationOnce(
        async (
          _group: unknown,
          _input: unknown,
          _onProcess: unknown,
          onOutput?: (output: Record<string, unknown>) => Promise<void>,
        ) => {
          await onOutput?.({
            status: 'success',
            result: 'rotated scheduled task org-access response',
          });
          return {
            status: 'success',
            result: null,
          };
        },
      );

    const enqueueTask = vi.fn(
      (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        void fn();
      },
    );
    const sendMessage = vi.fn(async () => {});

    startSchedulerLoop({
      serviceAgentType: 'claude-code',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Claude',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'claude-code',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage,
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(runAgentProcessMock).toHaveBeenCalledTimes(2);
    expect(tokenRotation.rotateToken).toHaveBeenCalledTimes(1);
    expect(tokenRotation.markTokenHealthy).toHaveBeenCalledTimes(1);
    // No fallback cooldown to check
    expect(sendMessage).toHaveBeenCalledTimes(1);
    expect(sendMessage).toHaveBeenCalledWith(
      'shared@g.us',
      'rotated scheduled task org-access response',
    );
  });

  it('retries Codex scheduled tasks with a rotated account on streamed auth expiry', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-codex-auth-expired',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      prompt: 'codex task',
      schedule_type: 'once',
      schedule_value: dueAt,
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    vi.mocked(codexTokenRotation.getCodexAccountCount).mockReturnValue(2);
    vi.mocked(codexTokenRotation.rotateCodexToken).mockReturnValueOnce(true);

    (runAgentProcessMock as any)
      .mockImplementationOnce(
        async (
          _group: unknown,
          _input: unknown,
          _onProcess: unknown,
          onOutput?: (output: Record<string, unknown>) => Promise<void>,
        ) => {
          await onOutput?.({
            status: 'error',
            error:
              'Failed to authenticate. API Error: 401 {"type":"error","error":{"type":"authentication_error","message":"OAuth token has expired. Please obtain a new token or refresh your existing token."}}',
            result: null,
          });
          return {
            status: 'error',
            error:
              'Failed to authenticate. API Error: 401 {"type":"error","error":{"type":"authentication_error","message":"OAuth token has expired. Please obtain a new token or refresh your existing token."}}',
            result: null,
          };
        },
      )
      .mockImplementationOnce(
        async (
          _group: unknown,
          _input: unknown,
          _onProcess: unknown,
          onOutput?: (output: Record<string, unknown>) => Promise<void>,
        ) => {
          await onOutput?.({
            status: 'success',
            result: 'rotated codex scheduled task response',
          });
          return {
            status: 'success',
            result: null,
          };
        },
      );

    const enqueueTask = vi.fn(
      (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        void fn();
      },
    );
    const sendMessage = vi.fn(async () => {});

    startSchedulerLoop({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage,
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(runAgentProcessMock).toHaveBeenCalledTimes(2);
    expect(codexTokenRotation.rotateCodexToken).toHaveBeenCalledTimes(1);
    expect(codexTokenRotation.markCodexTokenHealthy).toHaveBeenCalledTimes(1);
    expect(sendMessage).toHaveBeenCalledTimes(1);
    expect(sendMessage).toHaveBeenCalledWith(
      'shared@g.us',
      'rotated codex scheduled task response',
    );
  });

  it('picks up newly due tasks immediately when nudged', async () => {
    const enqueueTask = vi.fn();

    startSchedulerLoop({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });

    await vi.advanceTimersByTimeAsync(10);
    expect(enqueueTask).not.toHaveBeenCalled();

    createTask({
      id: 'task-watch-immediate',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      prompt: `
[BACKGROUND CI WATCH]

Watch target:
GitHub Actions run 654321

Check instructions:
Check the run.
      `.trim(),
      schedule_type: 'interval',
      schedule_value: '60000',
      context_mode: 'isolated',
      next_run: new Date(Date.now() - 1000).toISOString(),
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    nudgeSchedulerLoop();
    await vi.advanceTimersByTimeAsync(10);

    expect(enqueueTask).toHaveBeenCalledTimes(1);
    expect(enqueueTask).toHaveBeenCalledWith(
      'shared@g.us::task:task-watch-immediate',
      'task-watch-immediate',
      expect.any(Function),
    );
  });

  it('uses dedicated IPC but shared session state for group-context CI watchers', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-watch-runtime',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      prompt: `
[BACKGROUND CI WATCH]

Watch target:
GitHub Actions run 123456

Check instructions:
Check the run.
      `.trim(),
      schedule_type: 'interval',
      schedule_value: '60000',
      context_mode: 'group',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    const enqueueTask = vi.fn(
      async (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        await fn();
      },
    );

    startSchedulerLoop({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({ 'shared-group': 'session-123' }),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(runAgentProcessMock).toHaveBeenCalledWith(
      expect.anything(),
      expect.objectContaining({
        runtimeTaskId: 'task-watch-runtime',
        useTaskScopedSession: false,
        sessionId: 'session-123',
      }),
      expect.any(Function),
      expect.any(Function),
      undefined,
    );
    expect(writeTasksSnapshotMock).toHaveBeenCalledWith(
      'shared-group',
      false,
      expect.any(Array),
      'task-watch-runtime',
    );
  });

  it('uses the host-driven GitHub watcher path without spawning an agent', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-github-running',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      ci_provider: 'github',
      ci_metadata: JSON.stringify({
        repo: 'owner/repo',
        run_id: 123456,
      }),
      prompt: `
[BACKGROUND CI WATCH]

Watch target:
GitHub Actions run 123456

Check instructions:
Managed by host-driven watcher.
      `.trim(),
      schedule_type: 'interval',
      schedule_value: '15000',
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    const enqueueTask = vi.fn(
      async (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        await fn();
      },
    );

    startSchedulerLoop({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(checkGitHubActionsRunMock).toHaveBeenCalledWith(
      expect.objectContaining({
        id: 'task-github-running',
        ci_provider: 'github',
      }),
    );
    expect(runAgentProcessMock).not.toHaveBeenCalled();

    const task = getTaskById('task-github-running');
    expect(task).toBeDefined();
    expect(task?.next_run).not.toBe(dueAt);
    expect(task?.ci_metadata).toContain('"poll_count":1');
    expect(task?.ci_metadata).toContain('"consecutive_errors":0');
  });

  it('sends a final message and deletes terminal GitHub watcher tasks', async () => {
    checkGitHubActionsRunMock.mockResolvedValueOnce({
      terminal: true,
      resultSummary: '성공: owner/repo run 654321',
      completionMessage: 'CI 완료: GitHub Actions run 654321\n판정: 성공',
    });

    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-github-complete',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      ci_provider: 'github',
      ci_metadata: JSON.stringify({
        repo: 'owner/repo',
        run_id: 654321,
      }),
      prompt: `
[BACKGROUND CI WATCH]

Watch target:
GitHub Actions run 654321

Check instructions:
Managed by host-driven watcher.
      `.trim(),
      schedule_type: 'interval',
      schedule_value: '15000',
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    const sendMessage = vi.fn(async () => {});
    const enqueueTask = vi.fn(
      async (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        await fn();
      },
    );

    startSchedulerLoop({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage,
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(sendMessage).toHaveBeenCalledWith(
      'shared@g.us',
      'CI 완료: GitHub Actions run 654321\n판정: 성공',
    );
    expect(runAgentProcessMock).not.toHaveBeenCalled();
    expect(getTaskById('task-github-complete')).toBeUndefined();
  });

  it('backs off long-running GitHub watchers based on elapsed time', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-github-backoff',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      ci_provider: 'github',
      ci_metadata: JSON.stringify({
        repo: 'owner/repo',
        run_id: 222222,
        poll_count: 9,
      }),
      prompt: `
[BACKGROUND CI WATCH]

Watch target:
GitHub Actions run 222222

Check instructions:
Managed by host-driven watcher.
      `.trim(),
      schedule_type: 'interval',
      schedule_value: '15000',
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: new Date(Date.now() - 11 * 60_000).toISOString(),
    });

    const enqueueTask = vi.fn(
      async (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        await fn();
      },
    );

    startSchedulerLoop({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });

    await vi.advanceTimersByTimeAsync(10);

    const task = getTaskById('task-github-backoff');
    expect(task).toBeDefined();
    expect(
      new Date(task!.next_run!).getTime() - Date.now(),
    ).toBeGreaterThanOrEqual(29_000);
    expect(task?.ci_metadata).toContain('"poll_count":10');
  });

  it('pauses GitHub watchers after repeated gh api failures', async () => {
    checkGitHubActionsRunMock.mockRejectedValueOnce(
      new Error('gh api failed: rate limit'),
    );

    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-github-pause',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      ci_provider: 'github',
      ci_metadata: JSON.stringify({
        repo: 'owner/repo',
        run_id: 333333,
        poll_count: 4,
        consecutive_errors: 4,
      }),
      prompt: `
[BACKGROUND CI WATCH]

Watch target:
GitHub Actions run 333333

Check instructions:
Managed by host-driven watcher.
      `.trim(),
      schedule_type: 'interval',
      schedule_value: '15000',
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    const sendMessage = vi.fn(async () => {});
    const enqueueTask = vi.fn(
      async (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        await fn();
      },
    );

    startSchedulerLoop({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({}),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage,
    });

    await vi.advanceTimersByTimeAsync(10);

    const task = getTaskById('task-github-pause');
    expect(task?.status).toBe('paused');
    expect(task?.ci_metadata).toContain('"consecutive_errors":5');
    expect(sendMessage).toHaveBeenCalledWith(
      'shared@g.us',
      expect.stringContaining('gh api 연속 5회 실패'),
    );
    expect(runAgentProcessMock).not.toHaveBeenCalled();
  });

  it('deletes active tasks that exceed max duration before they run', async () => {
    const enqueueTask = vi.fn();
    createTask({
      id: 'task-watch-expired',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      max_duration_ms: 60_000,
      prompt: `
[BACKGROUND CI WATCH]

Watch target:
GitHub Actions run 999999

Check instructions:
Check the run.
      `.trim(),
      schedule_type: 'interval',
      schedule_value: '60000',
      context_mode: 'group',
      next_run: new Date(Date.now() + 60_000).toISOString(),
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    startSchedulerLoop({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({ 'shared-group': 'session-123' }),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(getTaskById('task-watch-expired')).toBeUndefined();
    expect(enqueueTask).not.toHaveBeenCalled();
    expect(runAgentProcessMock).not.toHaveBeenCalled();
  });

  it('deletes expired tasks during a direct scheduler tick before enqueueing', async () => {
    const enqueueTask = vi.fn();
    createTask({
      id: 'task-watch-expired-direct',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      max_duration_ms: 60_000,
      prompt: 'expired direct tick task',
      schedule_type: 'interval',
      schedule_value: '60000',
      context_mode: 'isolated',
      next_run: new Date(Date.now() - 60_000).toISOString(),
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    await runSchedulerTickOnce({
      serviceAgentType: 'codex',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Codex',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'codex',
        },
      }),
      getSessions: () => ({ 'shared-group': 'session-123' }),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });

    expect(getTaskById('task-watch-expired-direct')).toBeUndefined();
    expect(enqueueTask).not.toHaveBeenCalled();
  });

  it('isolates both IPC and session state for isolated tasks', async () => {
    const dueAt = new Date(Date.now() - 60_000).toISOString();
    createTask({
      id: 'task-isolated-runtime',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'claude-code',
      prompt: 'run isolated task',
      schedule_type: 'once',
      schedule_value: dueAt,
      context_mode: 'isolated',
      next_run: dueAt,
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    const enqueueTask = vi.fn(
      async (_groupJid: string, _taskId: string, fn: () => Promise<void>) => {
        await fn();
      },
    );

    startSchedulerLoop({
      serviceAgentType: 'claude-code',
      roomBindings: () => ({
        'shared@g.us': {
          name: 'Shared',
          folder: 'shared-group',
          trigger: '@Claude',
          added_at: '2026-02-22T00:00:00.000Z',
          agentType: 'claude-code',
        },
      }),
      getSessions: () => ({ 'shared-group': 'session-123' }),
      queue: { enqueueTask } as any,
      onProcess: () => {},
      sendMessage: async () => {},
    });

    await vi.advanceTimersByTimeAsync(10);

    expect(runAgentProcessMock).toHaveBeenCalledWith(
      expect.anything(),
      expect.objectContaining({
        runtimeTaskId: 'task-isolated-runtime',
        useTaskScopedSession: true,
        sessionId: undefined,
      }),
      expect.any(Function),
      expect.any(Function),
      undefined,
    );
    expect(writeTasksSnapshotMock).toHaveBeenCalledWith(
      'shared-group',
      false,
      expect.any(Array),
      'task-isolated-runtime',
    );
  });

  it('renders watcher heartbeat messages with target and timing', () => {
    const prompt = `
[BACKGROUND CI WATCH]

Watch target:
GitHub Actions run 123456

Check instructions:
Check the run.
`.trim();

    expect(isWatchCiTask({ prompt } as any)).toBe(true);
    expect(extractWatchCiTarget(prompt)).toBe('GitHub Actions run 123456');

    const rendered = renderWatchCiStatusMessage({
      task: {
        prompt,
        schedule_type: 'interval',
        schedule_value: '60000',
      } as any,
      phase: 'waiting',
      checkedAt: '2026-03-19T07:02:10.000Z',
      statusStartedAt: '2026-03-19T07:00:00.000Z',
      nextRun: '2026-03-19T07:04:10.000Z',
    });

    const expectedCheckedLabel = formatExpectedTimeLabel(
      '2026-03-19T07:02:10.000Z',
    );
    const expectedNextLabel = formatExpectedTimeLabel(
      '2026-03-19T07:04:10.000Z',
    );

    expect(rendered).toContain('CI 감시 중: GitHub Actions run 123456');
    expect(rendered).toContain('- 상태: 대기 중');
    expect(rendered).toContain(`- 마지막 확인: ${expectedCheckedLabel}`);
    expect(rendered).toContain('- 경과 시간: 2분 10초');
    expect(rendered).toContain('- 확인 간격: 1분');
    expect(rendered).toContain(`- 다음 확인: ${expectedNextLabel}`);
    expect(rendered).not.toContain('16:02:10');
    expect(rendered).not.toContain('16:04:10');
  });

  it('omits watcher elapsed time when tracking has not started yet', () => {
    const prompt = `
[BACKGROUND CI WATCH]

Watch target:
GitHub Actions run 123456

Check instructions:
Check the run.
`.trim();

    const rendered = renderWatchCiStatusMessage({
      task: {
        prompt,
        schedule_type: 'interval',
        schedule_value: '60000',
      } as any,
      phase: 'checking',
      checkedAt: '2026-03-19T07:02:10.000Z',
      statusStartedAt: null,
    });

    expect(rendered).not.toContain('- 경과 시간:');
  });

  it('edits the existing watcher status message with refreshed elapsed time', async () => {
    vi.setSystemTime(new Date('2026-03-19T07:00:00.000Z'));

    createTask({
      id: 'task-watch-status',
      group_folder: 'shared-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      prompt: `
[BACKGROUND CI WATCH]

Watch target:
GitHub Actions run 123456

Check instructions:
Check the run.
      `.trim(),
      schedule_type: 'interval',
      schedule_value: '60000',
      context_mode: 'isolated',
      next_run: new Date(Date.now() - 60_000).toISOString(),
      status: 'active',
      created_at: '2026-02-22T00:00:00.000Z',
    });

    const sendTrackedMessage = vi.fn(async () => 'msg-123');
    const editTrackedMessage = vi.fn(async () => {});

    const tracker = createTaskStatusTracker(getTaskById('task-watch-status')!, {
      sendTrackedMessage,
      editTrackedMessage,
    });

    await tracker.update('checking');

    const firstState = getTaskById('task-watch-status');
    expect(sendTrackedMessage).toHaveBeenCalledWith(
      'shared@g.us',
      expect.stringContaining(`${TASK_STATUS_MESSAGE_PREFIX}CI 감시 중:`),
    );
    expect(firstState?.status_message_id).toBe('msg-123');
    expect(firstState?.status_started_at).toBe('2026-03-19T07:00:00.000Z');

    vi.setSystemTime(new Date('2026-03-19T07:02:10.000Z'));
    await tracker.update('waiting', '2026-03-19T07:04:10.000Z');

    const expectedNextLabel = formatExpectedTimeLabel(
      '2026-03-19T07:04:10.000Z',
    );

    expect(editTrackedMessage).toHaveBeenCalledWith(
      'shared@g.us',
      'msg-123',
      expect.stringContaining('- 경과 시간: 2분 10초'),
    );
    expect(editTrackedMessage).toHaveBeenCalledWith(
      'shared@g.us',
      'msg-123',
      expect.stringContaining(`- 다음 확인: ${expectedNextLabel}`),
    );

    const secondState = getTaskById('task-watch-status');
    expect(secondState?.status_message_id).toBe('msg-123');
    expect(secondState?.status_started_at).toBe('2026-03-19T07:00:00.000Z');
  });

  it('logs and falls back to sending a new watcher status message when edit fails', async () => {
    vi.setSystemTime(new Date('2026-03-19T07:00:00.000Z'));
    createTask({
      id: 'task-watch-status-edit-fail',
      group_folder: 'test-group',
      chat_jid: 'shared@g.us',
      agent_type: 'claude-code',
      prompt: `
[BACKGROUND CI WATCH]

Watch target:
PR #77 checks

Check instructions:
Check the run.
      `.trim(),
      schedule_type: 'interval',
      schedule_value: '60000',
      context_mode: 'isolated',
      next_run: new Date(Date.now() - 60_000).toISOString(),
      status: 'active',
      status_message_id: 'msg-old',
      status_started_at: '2026-03-19T07:00:00.000Z',
      created_at: '2026-03-19T07:00:00.000Z',
    });

    const sendTrackedMessage = vi.fn(async () => 'msg-new');
    const editTrackedMessage = vi.fn(async () => {
      throw new Error('discord edit failed');
    });

    const tracker = createTaskStatusTracker(
      getTaskById('task-watch-status-edit-fail')!,
      {
        sendTrackedMessage,
        editTrackedMessage,
      },
    );

    await tracker.update('waiting', '2026-03-19T07:04:10.000Z');

    expect(loggerDebugMock).toHaveBeenCalledWith(
      expect.objectContaining({
        taskId: 'task-watch-status-edit-fail',
        chatJid: 'shared@g.us',
        statusMessageId: 'msg-old',
        phase: 'waiting',
      }),
      'Failed to edit watcher status message, falling back to send',
    );
    expect(sendTrackedMessage).toHaveBeenCalledWith(
      'shared@g.us',
      expect.stringContaining(`${TASK_STATUS_MESSAGE_PREFIX}CI 감시 중:`),
    );

    const updatedTask = getTaskById('task-watch-status-edit-fail');
    expect(updatedTask?.status_message_id).toBe('msg-new');
    expect(updatedTask?.status_started_at).toBe('2026-03-19T07:00:00.000Z');
  });

  it('edits the existing watcher status message when the watcher completes', async () => {
    vi.setSystemTime(new Date('2026-03-19T07:05:00.000Z'));
    createTask({
      id: 'task-watch-status-completed',
      group_folder: 'test-group',
      chat_jid: 'shared@g.us',
      agent_type: 'codex',
      prompt: `
[BACKGROUND CI WATCH]

Watch target:
PR #77 checks

Check instructions:
Check the run.
      `.trim(),
      schedule_type: 'interval',
      schedule_value: '60000',
      context_mode: 'isolated',
      next_run: new Date(Date.now() - 60_000).toISOString(),
      status: 'active',
      status_message_id: 'msg-old',
      status_started_at: '2026-03-19T07:00:00.000Z',
      created_at: '2026-03-19T07:00:00.000Z',
    });

    const sendTrackedMessage = vi.fn(async () => 'msg-terminal');
    const editTrackedMessage = vi.fn(async () => {});

    const tracker = createTaskStatusTracker(
      getTaskById('task-watch-status-completed')!,
      {
        sendTrackedMessage,
        editTrackedMessage,
      },
    );

    await tracker.update('completed');

    expect(editTrackedMessage).toHaveBeenCalledWith(
      'shared@g.us',
      'msg-old',
      expect.stringContaining(`${TASK_STATUS_MESSAGE_PREFIX}CI 감시 종료:`),
    );
    expect(editTrackedMessage).toHaveBeenCalledWith(
      'shared@g.us',
      'msg-old',
      expect.stringContaining('- 상태: 완료'),
    );
    expect(sendTrackedMessage).not.toHaveBeenCalled();

    const updatedTask = getTaskById('task-watch-status-completed');
    expect(updatedTask?.status_message_id).toBe('msg-old');
    expect(updatedTask?.status_started_at).toBe('2026-03-19T07:00:00.000Z');
  });

  it('computeNextRun anchors interval tasks to scheduled time to prevent drift', () => {
    const scheduledTime = new Date(Date.now() - 2000).toISOString(); // 2s ago
    const task = {
      id: 'drift-test',
      group_folder: 'test',
      chat_jid: 'test@g.us',
      agent_type: 'claude-code' as const,
      status_message_id: null,
      status_started_at: null,
      prompt: 'test',
      schedule_type: 'interval' as const,
      schedule_value: '60000', // 1 minute
      context_mode: 'isolated' as const,
      next_run: scheduledTime,
      last_run: null,
      last_result: null,
      status: 'active' as const,
      created_at: '2026-01-01T00:00:00.000Z',
    };

    const nextRun = computeNextRun(task);
    expect(nextRun).not.toBeNull();

    // Should be anchored to scheduledTime + 60s, NOT Date.now() + 60s
    const expected = new Date(scheduledTime).getTime() + 60000;
    expect(new Date(nextRun!).getTime()).toBe(expected);
  });

  it('computeNextRun returns null for once-tasks', () => {
    const task = {
      id: 'once-test',
      group_folder: 'test',
      chat_jid: 'test@g.us',
      agent_type: 'claude-code' as const,
      status_message_id: null,
      status_started_at: null,
      prompt: 'test',
      schedule_type: 'once' as const,
      schedule_value: '2026-01-01T00:00:00.000Z',
      context_mode: 'isolated' as const,
      next_run: new Date(Date.now() - 1000).toISOString(),
      last_run: null,
      last_result: null,
      status: 'active' as const,
      created_at: '2026-01-01T00:00:00.000Z',
    };

    expect(computeNextRun(task)).toBeNull();
  });

  it('computeNextRun skips missed intervals without infinite loop', () => {
    // Task was due 10 intervals ago (missed)
    const ms = 60000;
    const missedBy = ms * 10;
    const scheduledTime = new Date(Date.now() - missedBy).toISOString();

    const task = {
      id: 'skip-test',
      group_folder: 'test',
      chat_jid: 'test@g.us',
      agent_type: 'claude-code' as const,
      status_message_id: null,
      status_started_at: null,
      prompt: 'test',
      schedule_type: 'interval' as const,
      schedule_value: String(ms),
      context_mode: 'isolated' as const,
      next_run: scheduledTime,
      last_run: null,
      last_result: null,
      status: 'active' as const,
      created_at: '2026-01-01T00:00:00.000Z',
    };

    const nextRun = computeNextRun(task);
    expect(nextRun).not.toBeNull();
    // Must be in the future
    expect(new Date(nextRun!).getTime()).toBeGreaterThan(Date.now());
    // Must be aligned to the original schedule grid
    const offset =
      (new Date(nextRun!).getTime() - new Date(scheduledTime).getTime()) % ms;
    expect(offset).toBe(0);
  });
});