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plan.node.ts.html

plan.node.ts.html 36 KB
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  1. 

  2. <!doctype html>
    3. 

  3. <html lang="en">
    4. 

  4. 

  5. <head>
    6. 

  6.     <title>Code coverage report for modules/book-generator/nodes/plan.node.ts</title>
    7. 

  7.     <meta charset="utf-8" />
    8. 

  8.     <link rel="stylesheet" href="../../../prettify.css" />
    9. 

  9.     <link rel="stylesheet" href="../../../base.css" />
    10. 

  10.     <link rel="shortcut icon" type="image/x-icon" href="../../../favicon.png" />
    11. 

  11.     <meta name="viewport" content="width=device-width, initial-scale=1" />
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  12.     <style type='text/css'>
    13. 

  13.         .coverage-summary .sorter {
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  14.             background-image: url(../../../sort-arrow-sprite.png);
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  15.         }
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  16.     </style>
    17. 

  17. </head>
    18. 

  18.     
    19. 

  19. <body>
    20. 

  20. <div class='wrapper'>
    21. 

  21.     <div class='pad1'>
    22. 

  22.         <h1><a href="../../../index.html">All files</a> / <a href="index.html">modules/book-generator/nodes</a> plan.node.ts</h1>
    23. 

  23.         <div class='clearfix'>
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  25.             <div class='fl pad1y space-right2'>
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  26.                 <span class="strong">0% </span>
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  27.                 <span class="quiet">Statements</span>
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  28.                 <span class='fraction'>0/97</span>
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  29.             </div>
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  40.                 <span class="strong">0% </span>
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  41.                 <span class="quiet">Functions</span>
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  42.                 <span class='fraction'>0/1</span>
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  50.             </div>
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  51.         
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  52.             
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  53.         </div>
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  54.         <p class="quiet">
    55. 

  55.             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.
    56. 

  56.         </p>
    57. 

  57.         <template id="filterTemplate">
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  58.             <div class="quiet">
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  59.                 Filter:
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  60.                 <input type="search" id="fileSearch">
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  61.             </div>
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  62.         </template>
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  63.     </div>
    64. 

  64.     <div class='status-line low'></div>
    65. 

  65.     <pre><table class="coverage">
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  66. <tr><td class="line-count quiet"><a name='L1'></a><a href='#L1'>1</a>
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  504. <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>
    505. 

  505.  * 书籍规划节点（planBookNode）
    506. 

  506.  * 在生成任何内容之前，由 AI 像职业作家一样对整本书做详细规划：
    507. 

  507.  *   - 分析书籍类型、目标读者、内容深度
    508. 

  508.  *   - 决定大纲层级（1/2/3层）
    509. 

  509.  *   - 规划写作风格和结构逻辑
    510. 

  510.  *   - 输出完整的写作方案
    511. 

  511.  *
    512. 

  512.  * 该节点的输出（planResult）会被存储到 GraphState，供后续节点参考。
    513. 

  513.  */
    514. 

  514. &nbsp;
    515. 

  515. import { GraphState } from '../graph';
    516. 

  516. import { bookStore } from '../book-generator.store';
    517. 

  517. import { callLLMWithMessages, ChatMessage } from '../../../services/llm';
    518. 

  518. import { PROGRESS } from '../utils';
    519. 

  519. import { getScaleConfig } from '../book-type-config';
    520. 

  520. &nbsp;
    521. 

  521. /**
    522. 

  522.  * 书籍规划输出接口
    523. 

  523.  */
    524. 

  524. export interface BookPlan {
    525. 

  525.   /** 最终确定的大纲层级 */
    526. 

  526.   genLevel: number;
    527. 

  527.   /** 书籍类型分析 */
    528. 

  528.   bookTypeAnalysis: string;
    529. 

  529.   /** 推荐的写作风格 */
    530. 

  530.   writingStyle: string;
    531. 

  531.   /** 结构逻辑说明 */
    532. 

  532.   structureLogic: string;
    533. 

  533.   /** 内容深度评估 */
    534. 

  534.   contentDepth: string;
    535. 

  535.   /** 目标读者分析 */
    536. 

  536.   targetAudienceAnalysis: string;
    537. 

  537.   /** 规划理由 */
    538. 

  538.   reasoning: string;
    539. 

  539. }
    540. 

  540. &nbsp;
    541. 

  541. /**
    542. 

  542.  * 从描述中提取明确的字数要求
    543. 

  543.  * 如 "生成200字文本" → 200
    544. 

  544.  */
    545. 

  545. <span class="cstat-no" title="statement not covered" >function extractWordCountFromDescription(description: string): number | null {</span>
    546. 

  546. <span class="cstat-no" title="statement not covered" >  const text = description.toLowerCase();</span>
    547. 

  547.   // 匹配 "200字"、"500字" 等
    548. 

  548. <span class="cstat-no" title="statement not covered" >  const match = text.match(/(\d+)\s*字/i);</span>
    549. 

  549. <span class="cstat-no" title="statement not covered" >  if (match) {</span>
    550. 

  550. <span class="cstat-no" title="statement not covered" >    const n = parseInt(match[1]);</span>
    551. 

  551. <span class="cstat-no" title="statement not covered" >    return isNaN(n) ? null : n;</span>
    552. 

  552. <span class="cstat-no" title="statement not covered" >  }</span>
    553. 

  553. <span class="cstat-no" title="statement not covered" >  return null;</span>
    554. 

  554. <span class="cstat-no" title="statement not covered" >}</span>
    555. 

  555. &nbsp;
    556. 

  556. /**
    557. 

  557.  * 构建规划提示词
    558. 

  558.  */
    559. 

  559. <span class="cstat-no" title="statement not covered" >function buildPlanPrompt(</span>
    560. 

  560. <span class="cstat-no" title="statement not covered" >  title: string,</span>
    561. 

  561. <span class="cstat-no" title="statement not covered" >  description: string,</span>
    562. 

  562. <span class="cstat-no" title="statement not covered" >  bookScale: string</span>
    563. 

  563. <span class="cstat-no" title="statement not covered" >): string {</span>
    564. 

  564. <span class="cstat-no" title="statement not covered" >  const config = getScaleConfig(bookScale);</span>
    565. 

  565. <span class="cstat-no" title="statement not covered" >  const chapters = config?.chapters || 17;</span>
    566. 

  566. &nbsp;
    567. 

  567.   // 如果 description 里有明确字数要求，优先用它
    568. 

  568. <span class="cstat-no" title="statement not covered" >  const descWordCount = extractWordCountFromDescription(description);</span>
    569. 

  569. <span class="cstat-no" title="statement not covered" >  const totalWords = descWordCount !== null</span>
    570. 

  570. <span class="cstat-no" title="statement not covered" >    ? descWordCount</span>
    571. 

  571. <span class="cstat-no" title="statement not covered" >    : (config?.totalWords || 130000);</span>
    572. 

  572. &nbsp;
    573. 

  573. <span class="cstat-no" title="statement not covered" >  return `你是一位经验丰富的图书策划编辑。请对以下书籍做全面规划。</span>
    574. 

  574. &nbsp;
    575. 

  575. ## 书籍信息
    576. 

  576. <span class="cstat-no" title="statement not covered" >- 书名：${title}</span>
    577. 

  577. <span class="cstat-no" title="statement not covered" >- 字数规模：约${totalWords}字，约${chapters}章</span>
    578. 

  578. <span class="cstat-no" title="statement not covered" >- 描述：${description}</span>
    579. 

  579. &nbsp;
    580. 

  580. ## 你的职责
    581. 

  581. 像职业作家出书前一样，先对整本书做完整的规划分析。
    582. 

  582. &nbsp;
    583. 

  583. ## 分析维度
    584. 

  584. &nbsp;
    585. 

  585. ### 1. 内容类型分析
    586. 

  586. 判断这本书属于以下哪种类型：
    587. 

  587. - 教材/学术类：系统教学、理论知识体系完整
    588. 

  588. - 技术教程类：有操作步骤、代码、实践指南
    589. 

  589. - 小说/文学类：叙事性、故事性内容
    590. 

  590. - 商业/经管类：管理、营销、投资、创业
    591. 

  591. - 科普/大众类：普及科学知识，通俗易懂
    592. 

  592. - 其他类型
    593. 

  593. &nbsp;
    594. 

  594. ### 2. 大纲层级决策
    595. 

  595. 根据内容类型和字数规模，决定使用几层大纲：
    596. 

  596. - 1层（仅章）：适合小说、短文、浅层内容。每章直接展开写，无需拆分。
    597. 

  597. - 2层（章→节）：适合商业、科普、一般教程。每章拆 2-4 节，节内直接写内容。
    598. 

  598. - 3层（章→节→小节）：适合教材、技术书、系统教学。每章拆节，节下再拆小节。
    599. 

  599. &nbsp;
    600. 

  600. ### 3. 写作方案
    601. 

  601. - 目标读者是谁？他们需要什么？
    602. 

  602. - 用什么写作风格？（通俗易懂/专业严谨/轻松幽默/故事化）
    603. 

  603. - 内容如何组织递进？（由浅入深、由理论到实践、问题驱动等）
    604. 

  604. &nbsp;
    605. 

  605. ## 输出格式
    606. 

  606. &nbsp;
    607. 

  607. 你必须严格按照以下 JSON 格式返回，不要包含任何其他文字：
    608. 

  608. &nbsp;
    609. 

  609. {
    610. 

  610.   "genLevel": 1,
    611. 

  611.   "bookType": "教材|技术教程|小说|商业|科普",
    612. 

  612.   "bookTypeAnalysis": "对书籍类型的详细分析，2-3句话",
    613. 

  613.   "writingStyle": "推荐的写作风格",
    614. 

  614.   "structureLogic": "内容组织逻辑，如'由浅入深'、'由理论到实践'",
    615. 

  615.   "contentDepth": "内容深度评估（入门/基础/进阶/高级/专家）",
    616. 

  616.   "targetAudienceAnalysis": "目标读者分析，1-2句话",
    617. 

  617.   "reasoning": "为什么选择这个大纲层级？1-2句话"
    618. 

  618. }`;
    619. 

  619. <span class="cstat-no" title="statement not covered" >}</span>
    620. 

  620. &nbsp;
    621. 

  621. /**
    622. 

  622.  * 解析 AI 返回的规划 JSON
    623. 

  623.  */
    624. 

  624. <span class="cstat-no" title="statement not covered" >function parsePlanResponse(response: string): BookPlan | null {</span>
    625. 

  625. <span class="cstat-no" title="statement not covered" >  try {</span>
    626. 

  626. <span class="cstat-no" title="statement not covered" >    let cleaned = response.trim();</span>
    627. 

  627. &nbsp;
    628. 

  628.     // 移除 think 标签
    629. 

  629. <span class="cstat-no" title="statement not covered" >    const thinkEnd = cleaned.indexOf('&lt;/think&gt;');</span>
    630. 

  630. <span class="cstat-no" title="statement not covered" >    if (thinkEnd !== -1) {</span>
    631. 

  631. <span class="cstat-no" title="statement not covered" >      cleaned = cleaned.substring(thinkEnd + 8).trim();</span>
    632. 

  632. <span class="cstat-no" title="statement not covered" >    }</span>
    633. 

  633. &nbsp;
    634. 

  634.     // 提取 JSON
    635. 

  635. <span class="cstat-no" title="statement not covered" >    const match = cleaned.match(/\{[\s\S]*\}/);</span>
    636. 

  636. <span class="cstat-no" title="statement not covered" >    if (!match) {</span>
    637. 

  637. <span class="cstat-no" title="statement not covered" >      console.error('[PlanNode] 未找到 JSON');</span>
    638. 

  638. <span class="cstat-no" title="statement not covered" >      return null;</span>
    639. 

  639. <span class="cstat-no" title="statement not covered" >    }</span>
    640. 

  640. &nbsp;
    641. 

  641. <span class="cstat-no" title="statement not covered" >    const data = JSON.parse(match[0]);</span>
    642. 

  642. &nbsp;
    643. 

  643.     // 验证必要字段
    644. 

  644. <span class="cstat-no" title="statement not covered" >    if (typeof data.genLevel !== 'number' || ![1, 2, 3].includes(data.genLevel)) {</span>
    645. 

  645. <span class="cstat-no" title="statement not covered" >      console.error('[PlanNode] genLevel 无效:', data.genLevel);</span>
    646. 

  646. <span class="cstat-no" title="statement not covered" >      return null;</span>
    647. 

  647. <span class="cstat-no" title="statement not covered" >    }</span>
    648. 

  648. &nbsp;
    649. 

  649. <span class="cstat-no" title="statement not covered" >    return {</span>
    650. 

  650. <span class="cstat-no" title="statement not covered" >      genLevel: data.genLevel,</span>
    651. 

  651. <span class="cstat-no" title="statement not covered" >      bookTypeAnalysis: data.bookTypeAnalysis || '',</span>
    652. 

  652. <span class="cstat-no" title="statement not covered" >      writingStyle: data.writingStyle || '',</span>
    653. 

  653. <span class="cstat-no" title="statement not covered" >      structureLogic: data.structureLogic || '',</span>
    654. 

  654. <span class="cstat-no" title="statement not covered" >      contentDepth: data.contentDepth || '',</span>
    655. 

  655. <span class="cstat-no" title="statement not covered" >      targetAudienceAnalysis: data.targetAudienceAnalysis || '',</span>
    656. 

  656. <span class="cstat-no" title="statement not covered" >      reasoning: data.reasoning || '',</span>
    657. 

  657. <span class="cstat-no" title="statement not covered" >    };</span>
    658. 

  658. <span class="cstat-no" title="statement not covered" >  } catch (err) {</span>
    659. 

  659. <span class="cstat-no" title="statement not covered" >    console.error('[PlanNode] 解析失败:', err);</span>
    660. 

  660. <span class="cstat-no" title="statement not covered" >    return null;</span>
    661. 

  661. <span class="cstat-no" title="statement not covered" >  }</span>
    662. 

  662. <span class="cstat-no" title="statement not covered" >}</span>
    663. 

  663. &nbsp;
    664. 

  664. /**
    665. 

  665.  * 书籍规划节点
    666. 

  666.  * 作为 LangGraph 的第一个节点运行
    667. 

  667.  */
    668. 

  668. <span class="cstat-no" title="statement not covered" >export async function planBookNode(state: typeof GraphState.State): Promise&lt;Partial&lt;typeof GraphState.State&gt;&gt; {</span>
    669. 

  669. <span class="cstat-no" title="statement not covered" >  console.log('[PlanNode] 开始规划书籍, bookId:', state.bookId);</span>
    670. 

  670. &nbsp;
    671. 

  671.   // 用户明确指定了 genLevel → AI 规划可以覆盖风格等，但层级必须保留
    672. 

  672. <span class="cstat-no" title="statement not covered" >  const userDefinedLevel = state.userSpecifiedGenLevel !== undefined;</span>
    673. 

  673. &nbsp;
    674. 

  674. <span class="cstat-no" title="statement not covered" >  try {</span>
    675. 

  675. <span class="cstat-no" title="statement not covered" >    const book = await bookStore.getById(state.bookId);</span>
    676. 

  676. <span class="cstat-no" title="statement not covered" >    const title = book?.title || state.topic;</span>
    677. 

  677. <span class="cstat-no" title="statement not covered" >    const description = book?.description || '';</span>
    678. 

  678. <span class="cstat-no" title="statement not covered" >    const bookScale = state.bookScale || '1000';</span>
    679. 

  679. &nbsp;
    680. 

  680. <span class="cstat-no" title="statement not covered" >    const prompt = buildPlanPrompt(title, description, bookScale);</span>
    681. 

  681. &nbsp;
    682. 

  682. <span class="cstat-no" title="statement not covered" >    const messages: ChatMessage[] = [</span>
    683. 

  683. <span class="cstat-no" title="statement not covered" >      { role: 'system', content: '你是一位资深的图书策划编辑。请严格按照要求的 JSON 格式输出规划结果，不要添加任何额外文字。' },</span>
    684. 

  684. <span class="cstat-no" title="statement not covered" >      { role: 'user', content: prompt },</span>
    685. 

  685. <span class="cstat-no" title="statement not covered" >    ];</span>
    686. 

  686. &nbsp;
    687. 

  687. <span class="cstat-no" title="statement not covered" >    const response = await callLLMWithMessages(messages);</span>
    688. 

  688. <span class="cstat-no" title="statement not covered" >    const plan = parsePlanResponse(response);</span>
    689. 

  689. &nbsp;
    690. 

  690. <span class="cstat-no" title="statement not covered" >    if (!plan) {</span>
    691. 

  691. <span class="cstat-no" title="statement not covered" >      console.warn('[PlanNode] AI 规划解析失败，使用默认值');</span>
    692. 

  692. <span class="cstat-no" title="statement not covered" >      return { progress: PROGRESS.OUTLINE_DONE };</span>
    693. 

  693. <span class="cstat-no" title="statement not covered" >    }</span>
    694. 

  694. &nbsp;
    695. 

  695. <span class="cstat-no" title="statement not covered" >    console.log(`[PlanNode] 规划完成: genLevel=${plan.genLevel}, 类型=${(response.match(/"bookType"\s*:\s*"([^"]+)"/) || [])[1] || '未知'}, 风格=${plan.writingStyle}`);</span>
    696. 

  696. &nbsp;
    697. 

  697.     // 用户明确选了层级（含1/2/3）→ 保留用户选择；否则 → AI 决定
    698. 

  698. <span class="cstat-no" title="statement not covered" >    const finalGenLevel = userDefinedLevel</span>
    699. 

  699. <span class="cstat-no" title="statement not covered" >      ? (state.userSpecifiedGenLevel ?? state.genLevel) // 用户主动选择，保留</span>
    700. 

  700. <span class="cstat-no" title="statement not covered" >      : plan.genLevel;                                    // 自动模式，AI决定</span>
    701. 

  701. &nbsp;
    702. 

  702. <span class="cstat-no" title="statement not covered" >    console.log(`[PlanNode] genLevel: ${state.genLevel} → ${finalGenLevel} (userSpecified=${state.userSpecifiedGenLevel}), 风格=${plan.writingStyle}, 结构=${plan.structureLogic}`);</span>
    703. 

  703. &nbsp;
    704. 

  704.     // 持久化到数据库 + 通过 GraphState 传递给后续节点
    705. 

  705. <span class="cstat-no" title="statement not covered" >    await bookStore.update(state.bookId, {</span>
    706. 

  706. <span class="cstat-no" title="statement not covered" >      bookAnalysis: JSON.stringify(plan),</span>
    707. 

  707. <span class="cstat-no" title="statement not covered" >    });</span>
    708. 

  708. &nbsp;
    709. 

  709. <span class="cstat-no" title="statement not covered" >    return {</span>
    710. 

  710. <span class="cstat-no" title="statement not covered" >      progress: PROGRESS.OUTLINE_DONE,</span>
    711. 

  711. <span class="cstat-no" title="statement not covered" >      genLevel: finalGenLevel,</span>
    712. 

  712. <span class="cstat-no" title="statement not covered" >      bookPlan: JSON.stringify(plan),</span>
    713. 

  713. <span class="cstat-no" title="statement not covered" >    };</span>
    714. 

  714. <span class="cstat-no" title="statement not covered" >  } catch (error) {</span>
    715. 

  715. <span class="cstat-no" title="statement not covered" >    console.error('[PlanNode] 规划失败:', error);</span>
    716. 

  716.     // 不阻塞流程，继续使用默认 genLevel
    717. 

  717. <span class="cstat-no" title="statement not covered" >    await bookStore.update(state.bookId, {</span>
    718. 

  718. <span class="cstat-no" title="statement not covered" >      progress: PROGRESS.OUTLINE_DONE,</span>
    719. 

  719. <span class="cstat-no" title="statement not covered" >    });</span>
    720. 

  720. <span class="cstat-no" title="statement not covered" >    return { progress: PROGRESS.OUTLINE_DONE };</span>
    721. 

  721. <span class="cstat-no" title="statement not covered" >  }</span>
    722. 

  722. <span class="cstat-no" title="statement not covered" >}</span>
    723. 

  723. &nbsp;</pre></td></tr></table></pre>
    724. 

  724. 

  725.                 <div class='push'></div><!-- for sticky footer -->
    726. 

  726.             </div><!-- /wrapper -->
    727. 

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    728. 

  728.                 Code coverage generated by
    729. 

  729.                 <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
    730. 

  730.                 at 2026-05-19T14:27:48.313Z
    731. 

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    732. 

  732.         <script src="../../../prettify.js"></script>
    733. 

  733.         <script>
    734. 

  734.             window.onload = function () {
    735. 

  735.                 prettyPrint();
    736. 

  736.             };
    737. 

  737.         </script>
    738. 

  738.         <script src="../../../sorter.js"></script>
    739. 

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    740. 

  740.     </body>
    741. 

  741. </html>
    742. 

  742.     
    743.