outline.node.ts.html 25 KB

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  4. <title>Code coverage report for modules/book-generator/nodes/outline.node.ts</title>
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  19. <h1><a href="../../../index.html">All files</a> / <a href="index.html">modules/book-generator/nodes</a> outline.node.ts</h1>
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  21. <div class='fl pad1y space-right2'>
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  42. <p class="quiet">
  43. Press <em>n</em> or <em>j</em> to go to the next uncovered block, <em>b</em>, <em>p</em> or <em>k</em> for the previous block.
  44. </p>
  45. <template id="filterTemplate">
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  47. Filter:
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  49. </div>
  50. </template>
  51. </div>
  52. <div class='status-line low'></div>
  53. <pre><table class="coverage">
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  310. <span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js"><span class="cstat-no" title="statement not covered" ><span class="fstat-no" title="function not covered" ><span class="branch-0 cbranch-no" title="branch not covered" >/**</span></span></span>
  311. * 大纲生成节点(集成容错机制)
  312. */
  313. &nbsp;
  314. import { GraphState } from '../graph';
  315. import { bookStore } from '../book-generator.store';
  316. import { callLLMWithMessages } from '../../../services/llm';
  317. import { parseOutline } from '../parsers/outline.parser';
  318. import { buildOutlineMessages, SCALE_CHAPTER_RANGE } from '../prompts/builder';
  319. import { PROGRESS } from '../utils';
  320. import { callLLMWithRetry, executeNodeWithTimeout, FAULT_TOLERANCE_CONFIG } from '../fault-tolerance';
  321. import { getChapterRange } from '../book-type-config';
  322. &nbsp;
  323. <span class="cstat-no" title="statement not covered" >export async function generateOutlineNode(state: typeof GraphState.State): Promise&lt;Partial&lt;typeof GraphState.State&gt;&gt; {</span>
  324. <span class="cstat-no" title="statement not covered" > console.log('[LangGraph] 生成大纲, bookId:', state.bookId, 'scale:', state.bookScale);</span>
  325. &nbsp;
  326. // 读取前序规划节点的分析结果,用于指导大纲生成
  327. <span class="cstat-no" title="statement not covered" > let bookPlan: any = null;</span>
  328. <span class="cstat-no" title="statement not covered" > if (state.bookPlan) {</span>
  329. <span class="cstat-no" title="statement not covered" > try {</span>
  330. <span class="cstat-no" title="statement not covered" > bookPlan = JSON.parse(state.bookPlan);</span>
  331. <span class="cstat-no" title="statement not covered" > console.log('[LangGraph] 使用规划结果指导大纲:', bookPlan.structureLogic, bookPlan.writingStyle);</span>
  332. <span class="cstat-no" title="statement not covered" > } catch {</span>
  333. <span class="cstat-no" title="statement not covered" > console.warn('[LangGraph] bookPlan 解析失败,忽略');</span>
  334. <span class="cstat-no" title="statement not covered" > }</span>
  335. <span class="cstat-no" title="statement not covered" > }</span>
  336. &nbsp;
  337. <span class="cstat-no" title="statement not covered" > try {</span>
  338. // 使用容错包装器执行AI调用
  339. <span class="cstat-no" title="statement not covered" > const response = await executeNodeWithTimeout(</span>
  340. <span class="cstat-no" title="statement not covered" > state.bookId,</span>
  341. <span class="cstat-no" title="statement not covered" > 'generate_outline',</span>
  342. <span class="cstat-no" title="statement not covered" > async () =&gt; {</span>
  343. <span class="cstat-no" title="statement not covered" > return callLLMWithRetry(</span>
  344. <span class="cstat-no" title="statement not covered" > buildOutlineMessages(state.topic, state.bookScale, state.description, bookPlan),</span>
  345. <span class="cstat-no" title="statement not covered" > undefined,</span>
  346. <span class="cstat-no" title="statement not covered" > {</span>
  347. <span class="cstat-no" title="statement not covered" > bookId: state.bookId,</span>
  348. <span class="cstat-no" title="statement not covered" > nodeId: 'generate_outline',</span>
  349. <span class="cstat-no" title="statement not covered" > attempt: 0,</span>
  350. <span class="cstat-no" title="statement not covered" > maxAttempts: FAULT_TOLERANCE_CONFIG.aiRetry.maxRetries,</span>
  351. <span class="cstat-no" title="statement not covered" > }</span>
  352. <span class="cstat-no" title="statement not covered" > );</span>
  353. <span class="cstat-no" title="statement not covered" > },</span>
  354. <span class="cstat-no" title="statement not covered" > FAULT_TOLERANCE_CONFIG.nodeTimeout.generate_outline</span>
  355. <span class="cstat-no" title="statement not covered" > );</span>
  356. &nbsp;
  357. <span class="cstat-no" title="statement not covered" > const outline = parseOutline(response);</span>
  358. <span class="cstat-no" title="statement not covered" > if (!outline) throw new Error('大纲解析失败');</span>
  359. &nbsp;
  360. // 校验章节数:允许 ±20% 浮动,超出才截断/补充
  361. <span class="cstat-no" title="statement not covered" > const targetChapters = SCALE_CHAPTER_RANGE[state.bookScale as keyof typeof SCALE_CHAPTER_RANGE];</span>
  362. <span class="cstat-no" title="statement not covered" > if (targetChapters) {</span>
  363. <span class="cstat-no" title="statement not covered" > const { min: minAllowed, max: maxAllowed } = getChapterRange(targetChapters);</span>
  364. <span class="cstat-no" title="statement not covered" > const actual = outline.chapters.length;</span>
  365. &nbsp;
  366. <span class="cstat-no" title="statement not covered" > if (actual &gt; maxAllowed) {</span>
  367. <span class="cstat-no" title="statement not covered" > console.warn(`[LangGraph] AI 返回章节数 ${actual} 超出上限 ${maxAllowed},截断`);</span>
  368. <span class="cstat-no" title="statement not covered" > outline.chapters = outline.chapters.slice(0, maxAllowed);</span>
  369. <span class="cstat-no" title="statement not covered" > } else if (actual &lt; minAllowed) {</span>
  370. <span class="cstat-no" title="statement not covered" > console.warn(`[LangGraph] AI 返回章节数 ${actual} 少于下限 ${minAllowed},使用话题相关的默认章节补充`);</span>
  371. <span class="cstat-no" title="statement not covered" > const topicHint = state.topic?.substring(0, 30) || '';</span>
  372. <span class="cstat-no" title="statement not covered" > const perChapterWords = Math.round(parseInt(state.bookScale) / minAllowed);</span>
  373. <span class="cstat-no" title="statement not covered" > const gapTopics = [</span>
  374. <span class="cstat-no" title="statement not covered" > `概述与背景`,</span>
  375. <span class="cstat-no" title="statement not covered" > `核心概念`,</span>
  376. <span class="cstat-no" title="statement not covered" > `深入探究`,</span>
  377. <span class="cstat-no" title="statement not covered" > `应用与实践`,</span>
  378. <span class="cstat-no" title="statement not covered" > `总结与展望`,</span>
  379. <span class="cstat-no" title="statement not covered" > ];</span>
  380. <span class="cstat-no" title="statement not covered" > while (outline.chapters.length &lt; minAllowed) {</span>
  381. <span class="cstat-no" title="statement not covered" > const idx = outline.chapters.length;</span>
  382. <span class="cstat-no" title="statement not covered" > const gapTitle = gapTopics[idx % gapTopics.length];</span>
  383. <span class="cstat-no" title="statement not covered" > outline.chapters.push({</span>
  384. <span class="cstat-no" title="statement not covered" > number: idx + 1,</span>
  385. <span class="cstat-no" title="statement not covered" > title: topicHint ? `第${idx + 1}章 ${topicHint} - ${gapTitle}` : `第${idx + 1}章 ${gapTitle}`,</span>
  386. <span class="cstat-no" title="statement not covered" > summary: `本章围绕"${topicHint || gapTitle}"展开,介绍${gapTitle}相关内容。`,</span>
  387. <span class="cstat-no" title="statement not covered" > keyPoints: [gapTitle, '关键知识点', '实践要点'],</span>
  388. <span class="cstat-no" title="statement not covered" > estimatedWords: perChapterWords,</span>
  389. <span class="cstat-no" title="statement not covered" > });</span>
  390. <span class="cstat-no" title="statement not covered" > }</span>
  391. <span class="cstat-no" title="statement not covered" > }</span>
  392. // 在范围内(±20%)不做任何处理,让 AI 自己决定
  393. <span class="cstat-no" title="statement not covered" > }</span>
  394. &nbsp;
  395. // 短文类至少1个章节
  396. <span class="cstat-no" title="statement not covered" > if (outline.chapters.length === 0) {</span>
  397. <span class="cstat-no" title="statement not covered" > console.warn('[LangGraph] AI 返回章节数为0,使用话题创建默认章节');</span>
  398. <span class="cstat-no" title="statement not covered" > const fallbackTitle = state.topic?.substring(0, 50) || '正文';</span>
  399. <span class="cstat-no" title="statement not covered" > outline.chapters = [{</span>
  400. <span class="cstat-no" title="statement not covered" > number: 1,</span>
  401. <span class="cstat-no" title="statement not covered" > title: fallbackTitle,</span>
  402. <span class="cstat-no" title="statement not covered" > summary: `关于"${fallbackTitle}"的全面介绍,涵盖核心概念、关键知识和实践要点。`,</span>
  403. <span class="cstat-no" title="statement not covered" > keyPoints: ['核心概念', '关键知识', '实践要点'],</span>
  404. <span class="cstat-no" title="statement not covered" > estimatedWords: parseInt(state.bookScale) || 800,</span>
  405. <span class="cstat-no" title="statement not covered" > }];</span>
  406. <span class="cstat-no" title="statement not covered" > }</span>
  407. &nbsp;
  408. <span class="cstat-no" title="statement not covered" > const totalChapters = outline.chapters.length;</span>
  409. <span class="cstat-no" title="statement not covered" > await bookStore.update(state.bookId, {</span>
  410. <span class="cstat-no" title="statement not covered" > totalChapters,</span>
  411. <span class="cstat-no" title="statement not covered" > outlineJson: JSON.stringify(outline),</span>
  412. <span class="cstat-no" title="statement not covered" > progress: PROGRESS.OUTLINE_DONE</span>
  413. <span class="cstat-no" title="statement not covered" > });</span>
  414. <span class="cstat-no" title="statement not covered" > await bookStore.createChapters(state.bookId, outline.chapters.map(c =&gt; ({</span>
  415. <span class="cstat-no" title="statement not covered" > number: c.number,</span>
  416. <span class="cstat-no" title="statement not covered" > title: c.title,</span>
  417. <span class="cstat-no" title="statement not covered" > summary: c.summary,</span>
  418. <span class="cstat-no" title="statement not covered" > keyPoints: c.keyPoints,</span>
  419. <span class="cstat-no" title="statement not covered" > estimatedWords: c.estimatedWords,</span>
  420. <span class="cstat-no" title="statement not covered" > })));</span>
  421. &nbsp;
  422. <span class="cstat-no" title="statement not covered" > console.log('[LangGraph] 大纲生成完成,章节数:', outline.chapters.length);</span>
  423. <span class="cstat-no" title="statement not covered" > return { progress: PROGRESS.OUTLINE_DONE };</span>
  424. <span class="cstat-no" title="statement not covered" > } catch (error) {</span>
  425. <span class="cstat-no" title="statement not covered" > console.error('[LangGraph] 大纲生成失败:', error);</span>
  426. // 更新书籍状态为失败
  427. <span class="cstat-no" title="statement not covered" > await bookStore.update(state.bookId, {</span>
  428. <span class="cstat-no" title="statement not covered" > genStage: 'failed',</span>
  429. <span class="cstat-no" title="statement not covered" > failedStage: 'outlining',</span>
  430. <span class="cstat-no" title="statement not covered" > errorMsg: error instanceof Error ? error.message : '大纲生成失败',</span>
  431. <span class="cstat-no" title="statement not covered" > });</span>
  432. <span class="cstat-no" title="statement not covered" > return {</span>
  433. <span class="cstat-no" title="statement not covered" > error: error instanceof Error ? error.message : '大纲生成失败',</span>
  434. <span class="cstat-no" title="statement not covered" > finished: true</span>
  435. <span class="cstat-no" title="statement not covered" > };</span>
  436. <span class="cstat-no" title="statement not covered" > }</span>
  437. <span class="cstat-no" title="statement not covered" >}</span>
  438. &nbsp;</pre></td></tr></table></pre>
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  443. <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
  444. at 2026-05-19T14:27:48.313Z
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