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

import { buildTaskRuntimeView } from '@/lib/task-runtime';
import type { ProcessArtifact, ProcessEvent, ProcessRun, Session } from '@/types';

describe('runtime view builders', () => {
  beforeEach(() => {
    vi.useFakeTimers();
    vi.setSystemTime(new Date('2026-03-24T12:00:00.000Z'));
  });

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

  it('builds a runtime view from a root run tree', () => {
    const sessions: Session[] = [
      {
        key: 'web:default',
        path: '需求讨论',
        created_at: '2026-03-24T09:55:00.000Z',
        updated_at: '2026-03-24T10:10:00.000Z',
      },
    ];

    const processRuns: ProcessRun[] = [
      {
        run_id: 'run-root',
        parent_run_id: null,
        session_id: 'web:default',
        actor_type: 'agent',
        actor_id: 'main-agent',
        actor_name: '主 Agent',
        title: '整理竞品研究并给出结论',
        status: 'running',
        started_at: '2026-03-24T10:00:00.000Z',
        metadata: {
          stage_label: '分析结果',
        },
      },
      {
        run_id: 'run-sub-agent',
        parent_run_id: 'run-root',
        session_id: 'web:default',
        actor_type: 'agent',
        actor_id: 'research-agent',
        actor_name: 'Research Agent',
        title: '收集竞品资料',
        status: 'done',
        started_at: '2026-03-24T10:01:00.000Z',
        finished_at: '2026-03-24T10:04:00.000Z',
        summary: '已完成资料收集',
      },
      {
        run_id: 'run-sub-mcp',
        parent_run_id: 'run-root',
        session_id: 'web:default',
        actor_type: 'mcp',
        actor_id: 'search-mcp',
        actor_name: 'Search MCP',
        title: '抓取公开资料',
        status: 'running',
        started_at: '2026-03-24T10:02:00.000Z',
      },
    ];

    const processEvents: ProcessEvent[] = [
      {
        event_id: 'evt-1',
        run_id: 'run-root',
        parent_run_id: null,
        kind: 'run_progress',
        actor_type: 'agent',
        actor_id: 'main-agent',
        actor_name: '主 Agent',
        text: '开始归纳公开信息',
        created_at: '2026-03-24T10:03:00.000Z',
        metadata: {
          stage_label: '分析结果',
        },
      },
      {
        event_id: 'evt-2',
        run_id: 'run-sub-agent',
        parent_run_id: 'run-root',
        kind: 'run_finished',
        actor_type: 'agent',
        actor_id: 'research-agent',
        actor_name: 'Research Agent',
        text: '资料整理完成',
        status: 'done',
        created_at: '2026-03-24T10:04:00.000Z',
      },
      {
        event_id: 'evt-3',
        run_id: 'run-sub-mcp',
        parent_run_id: 'run-root',
        kind: 'run_progress',
        actor_type: 'mcp',
        actor_id: 'search-mcp',
        actor_name: 'Search MCP',
        text: '正在搜索公开网页',
        created_at: '2026-03-24T10:05:00.000Z',
      },
    ];

    const processArtifacts: ProcessArtifact[] = [
      {
        artifact_id: 'artifact-1',
        run_id: 'run-sub-agent',
        actor_type: 'agent',
        actor_id: 'research-agent',
        actor_name: 'Research Agent',
        title: '竞品清单',
        artifact_type: 'markdown',
        content: '- A\n- B',
        created_at: '2026-03-24T10:04:30.000Z',
      },
    ];

    const runtime = buildTaskRuntimeView('run-root', {
      sessions,
      processRuns,
      processEvents,
      processArtifacts,
    });

    expect(runtime).not.toBeNull();
    expect(runtime?.taskId).toBe('run-root');
    expect(runtime?.title).toBe('整理竞品研究并给出结论');
    expect(runtime?.sourceSessionLabel).toBe('需求讨论');
    expect(runtime?.tasks).toHaveLength(3);
    expect(runtime?.progress.label).toBe('已完成子任务 1 / 3');
    expect(runtime?.stats.artifactCount).toBe(1);
    expect(runtime?.stats.alertCount).toBe(0);
  });

  it('marks stale waiting tasks as blocked and emits alerts', () => {
    const processRuns: ProcessRun[] = [
      {
        run_id: 'run-blocked',
        parent_run_id: null,
        session_id: 'web:default',
        actor_type: 'agent',
        actor_id: 'main-agent',
        actor_name: '主 Agent',
        title: '等待下游结果',
        status: 'waiting',
        started_at: '2026-03-24T09:00:00.000Z',
      },
    ];

    const runtime = buildTaskRuntimeView('run-blocked', {
      sessions: [],
      processRuns,
      processEvents: [],
      processArtifacts: [],
    });

    expect(runtime?.status).toBe('blocked');
    expect(runtime?.stats.alertCount).toBe(1);
  });
});