// tests/r3debug/docgenPoll.test.js —— #52 docgen 异步轮询状态机 + #28 检索文案
import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
import { setActivePinia, createPinia } from 'pinia';

// ---- mock 依赖（chat.js 顶层 import 链） ----
vi.mock('../../src/api/sessions.js', () => ({
  createMessage: vi.fn(async () => ({ id: 'm' + Math.random().toString(36).slice(2, 6) })),
  updateMessage: vi.fn(async () => ({ updated_at: new Date().toISOString() })),
}));
vi.mock('../../src/api/qa.js', () => ({
  chatStream: vi.fn(async () => {}),
  search: vi.fn(async () => ({ answer: '' })),
}));
vi.mock('../../src/api/private.js', () => ({
  askPrivate: vi.fn(async () => ({ hit: false })),
}));

import { useChatStore } from '../../src/stores/chat.js';
import { generate, getTask } from '../../src/api/docgen.js';

// docgen generate/getTask 的 mock 控制在各用例内（vi.mocked）
vi.mock('../../src/api/docgen.js', () => ({
  generate: vi.fn(),
  getTask: vi.fn(),
  getArtifactContent: vi.fn(async () => ({ markdown: '' })),
  getArtifactHtml: vi.fn(async () => ({ ok: true, html: '', css: '' })),
  saveArtifactContent: vi.fn(async () => ({})),
  editArtifact: vi.fn(async () => ({})),
  exportArtifact: vi.fn(async () => ({})),
  uploadLibrary: vi.fn(),
  listLibrary: vi.fn(async () => ({ items: [] })),
  removeLibrary: vi.fn(async () => ({ ok: true })),
  listTasks: vi.fn(async () => ({ tasks: [] })),
}));

import { useSessionsStore } from '../../src/stores/sessions.js';

function freshStores() {
  const pinia = createPinia();
  setActivePinia(pinia);
  const chat = useChatStore();
  const sessions = useSessionsStore();
  // 预置会话，跳过 create 网络路径
  chat.sessionId = 's1';
  sessions.activeId = 's1';
  sessions.items = [{ id: 's1', title: 't', status: 'done', created_at: '', updated_at: '' }];
  return { chat, sessions };
}

describe('#52 docgen 异步轮询状态机', () => {
  beforeEach(() => {
    vi.useFakeTimers();
    vi.mocked(generate).mockReset();
    vi.mocked(getTask).mockReset();
  });
  afterEach(() => {
    vi.useRealTimers();
    vi.restoreAllMocks();
  });

  it('202 异步：释放 busy 锁、消息块记录 task_id、2s 轮询', async () => {
    const { chat } = freshStores();
    vi.mocked(generate).mockResolvedValue({ ok: true, task_id: 'task-1', status: 'queued' });
    vi.mocked(getTask).mockResolvedValue({ ok: true, task: { id: 'task-1', status: 'running', progress: [], artifact: null, error: null } });

    const p = chat.sendDocgen('写一份报告', []);
    await vi.advanceTimersByTimeAsync(0);
    await p;

    // 核心缺陷：生成期间可继续对话 → busy 为 false（streamCtx 已清）
    expect(chat.busy).toBe(false);
    const aMsg = chat.messages.find((m) => m.role === 'assistant' && m.kind === 'docgen');
    expect(aMsg).toBeTruthy();
    expect(aMsg.task_id).toBe('task-1');
    expect(aMsg.blocks[0].task_id).toBe('task-1');
    expect(aMsg.blocks[0].taskStatus).toBe('queued');
    expect(aMsg.status).toBe('streaming');

    // 2s 轮询：advance 2s → getTask 被调
    await vi.advanceTimersByTimeAsync(2000);
    expect(getTask).toHaveBeenCalledWith('task-1');
  });

  it('running 进度驱动 pipeline（progress → 生成中 x/y 节）', async () => {
    const { chat } = freshStores();
    vi.mocked(generate).mockResolvedValue({ ok: true, task_id: 'task-2', status: 'queued' });
    vi.mocked(getTask).mockResolvedValue({
      ok: true,
      task: {
        id: 'task-2', status: 'running',
        progress: [
          { section: 1, title: 'a', state: 'done' },
          { section: 2, title: 'b', state: 'done' },
          { section: 3, title: 'c', state: 'running' },
          { section: 4, title: 'd', state: 'pending' },
        ],
        artifact: null, error: null,
      },
    });
    const p = chat.sendDocgen('写一份方案', []);
    await vi.advanceTimersByTimeAsync(0);
    await p;
    await vi.advanceTimersByTimeAsync(2000);
    await vi.advanceTimersByTimeAsync(0);
    const aMsg = chat.messages.find((m) => m.role === 'assistant' && m.kind === 'docgen');
    const pipe = aMsg.blocks[0];
    expect(pipe.taskStatus).toBe('running');
    const gen = pipe.steps.find((st) => st.phase === 'generation');
    expect(gen.state).toBe('running');
    expect(gen.desc).toContain('生成中 2/4');
  });

  it('done：挂 artifact 块 + 落库 + adoptArtifact + 切文档 TAB', async () => {
    const { chat } = freshStores();
    vi.mocked(generate).mockResolvedValue({ ok: true, task_id: 'task-3', status: 'queued' });
    // r3-52-02 复现：先 running（generation desc 被「生成中 x/y 节」覆盖）→ 再 done
    vi.mocked(getTask)
      .mockResolvedValueOnce({
        ok: true,
        task: {
          id: 'task-3', status: 'running',
          progress: [
            { section: 1, title: 'a', state: 'done' },
            { section: 2, title: 'b', state: 'running' },
          ],
          artifact: null, error: null,
        },
      })
      .mockResolvedValue({
        ok: true,
        task: {
          id: 'task-3', status: 'done',
          progress: [],
          artifact: { artifact_id: 'art-1', title: '方案', template_name: '方案计划', template_key: 'plan', has_html: true, letterhead: false, file_name: 'f.docx' },
          error: null,
        },
      });
    const p = chat.sendDocgen('写一份方案', []);
    await vi.advanceTimersByTimeAsync(0);
    await p;
    // 第一 tick：running，desc 被进度文案覆盖
    await vi.advanceTimersByTimeAsync(2000);
    await vi.advanceTimersByTimeAsync(0);
    let aMsg = chat.messages.find((m) => m.role === 'assistant' && m.kind === 'docgen');
    expect(aMsg.blocks[0].steps.find((s) => s.phase === 'generation').desc).toContain('生成中 1/2');
    // 第二 tick：done，desc 必须还原默认文案（r3-52-02）
    await vi.advanceTimersByTimeAsync(2000);
    await vi.advanceTimersByTimeAsync(0);
    await vi.advanceTimersByTimeAsync(0); // adoptArtifact 内部异步拉取
    aMsg = chat.messages.find((m) => m.role === 'assistant' && m.kind === 'docgen');
    expect(aMsg.status).toBe('done');
    expect(aMsg.blocks.some((b) => b.type === 'artifact' && b.artifact_id === 'art-1')).toBe(true);
    expect(aMsg.blocks[0].status).toBe('done');
    expect(aMsg.blocks[0].steps.every((s) => s.state === 'done')).toBe(true);
    const genStep = aMsg.blocks[0].steps.find((s) => s.phase === 'generation');
    expect(genStep.desc).toBe('按大纲逐节生成正文');
    expect(genStep.desc).not.toContain('生成中');
    // 轮询注册自清（终态后不再有定时器）
    const { useDocgenStore } = await import('../../src/stores/docgen.js');
    expect(useDocgenStore().activeArtifact?.artifact_id).toBe('art-1');
    // 切 TAB
    const { useBenchStore } = await import('../../src/stores/bench.js');
    expect(useBenchStore().activeTab).toBe('doc');
  });

  it('error：标失败 + 可重试（retry 走 docgen 路径）', async () => {
    const { chat } = freshStores();
    vi.mocked(generate).mockResolvedValue({ ok: true, task_id: 'task-4', status: 'queued' });
    vi.mocked(getTask).mockResolvedValue({ ok: true, task: { id: 'task-4', status: 'error', progress: [], artifact: null, error: '生成失败：资料解析错误' } });
    const p = chat.sendDocgen('写一份报告', []);
    await vi.advanceTimersByTimeAsync(0);
    await p;
    await vi.advanceTimersByTimeAsync(2000);
    await vi.advanceTimersByTimeAsync(0);
    const aMsg = chat.messages.find((m) => m.role === 'assistant' && m.kind === 'docgen');
    expect(aMsg.status).toBe('error');
    expect(aMsg.errText).toContain('生成失败');
    expect(aMsg.blocks[0].status).toBe('error');
    expect(chat.lastResult?.error?.retryable).toBe(true);
  });

  it('200 同步兼容路径：行为与修复前一致（立即 done + artifact + 切 TAB）', async () => {
    const { chat } = freshStores();
    vi.mocked(generate).mockResolvedValue({
      ok: true,
      artifact: { artifact_id: 'art-sync', title: '同步文档', template_name: '通用文档', status: 'done' },
    });
    await chat.sendDocgen('写一份文档', []);
    const aMsg = chat.messages.find((m) => m.role === 'assistant' && m.kind === 'docgen');
    expect(aMsg.status).toBe('done');
    expect(aMsg.blocks.some((b) => b.type === 'artifact' && b.artifact_id === 'art-sync')).toBe(true);
    expect(getTask).not.toHaveBeenCalled();
  });

  it('#42：templateId 传入 payload', async () => {
    const { chat } = freshStores();
    vi.mocked(generate).mockResolvedValue({ ok: true, task_id: 'task-5', status: 'queued' });
    vi.mocked(getTask).mockResolvedValue({ ok: true, task: { id: 'task-5', status: 'queued', progress: [], artifact: null, error: null } });
    const p = chat.sendDocgen('写一份公文', [], { templateId: 'official' });
    await vi.advanceTimersByTimeAsync(0);
    await p;
    expect(generate).toHaveBeenCalledWith(expect.objectContaining({ template_id: 'official' }));
  });

  it('会话恢复：running 消息块含 task_id → 恢复轮询', async () => {
    const { chat } = freshStores();
    const sessions = useSessionsStore();
    vi.mocked(getTask).mockResolvedValue({ ok: true, task: { id: 'task-6', status: 'running', progress: [], artifact: null, error: null } });
    sessions.fetchDetail = vi.fn(async () => ({
      messages: [
        { id: 'u1', role: 'user', kind: 'docgen', status: 'done', text: '写一份报告' },
        {
          id: 'a1', role: 'assistant', kind: 'docgen', status: 'streaming',
          blocks: [{ type: 'pipeline', title: 't', status: 'running', task_id: 'task-6', capabilities: [], steps: [] }],
        },
      ],
    }));
    await chat.loadSession('s1');
    expect(chat.messages.find((m) => m.id === 'a1').interrupted).toBeUndefined(); // 不误标「已中断」
    await vi.advanceTimersByTimeAsync(2000);
    expect(getTask).toHaveBeenCalledWith('task-6');
  });
});

describe('#28 检索空态/降级文案（_runSearch）', () => {
  beforeEach(() => {
    vi.useFakeTimers();
  });
  afterEach(() => {
    vi.useRealTimers();
    vi.restoreAllMocks();
  });

  it('正常空结果（sources 空且无 answer）→ searchNoAnswer 文案，done 态非错误', async () => {
    const { chat } = freshStores();
    const { search } = await import('../../src/api/qa.js');
    vi.mocked(search).mockResolvedValue({ answer: '', sources: [], degraded: false });
    await chat.send('请问 1234567890qwertyuiop 这种字符串与植物有什么关系', { mode: 'search' });
    const aMsg = chat.messages.find((m) => m.role === 'assistant');
    expect(aMsg.status).toBe('done');
    expect(aMsg.degradedNote).toBe('没有检索到此问题的有效回答');
    expect(aMsg.streamErr).toBeNull();
  });

  it('超时降级（degraded:true）→ searchTimeoutEmpty 专属文案（与空结果区分）', async () => {
    const { chat } = freshStores();
    const { search } = await import('../../src/api/qa.js');
    vi.mocked(search).mockResolvedValue({ mode: 'search', answer: '', sources: [], degraded: true, reason: 'TIMEOUT' });
    await chat.send('触发超时的问题', { mode: 'search' });
    const aMsg = chat.messages.find((m) => m.role === 'assistant');
    expect(aMsg.status).toBe('done');
    expect(aMsg.degradedNote).toBe('检索超时，未获取到有效回答（已降级返回）');
  });

  it('有 answer/sources 时不挂任何空态文案', async () => {
    const { chat } = freshStores();
    const { search } = await import('../../src/api/qa.js');
    vi.mocked(search).mockResolvedValue({ answer: '正常答案', sources: [{ paper_id: 'p1', title: 't' }], degraded: false });
    await chat.send('正常问题', { mode: 'search' });
    const aMsg = chat.messages.find((m) => m.role === 'assistant');
    expect(aMsg.degradedNote).toBeUndefined();
    expect(aMsg.status).toBe('done');
  });
});