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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 | /** * 专辑/书籍管理 - API 路由 */ import Router from '@koa/router'; import { Context } from 'koa'; import path from 'path'; import { bookStore } from './book-generator.store'; import { optionalAuth } from '../../middleware/auth'; import { prisma } from '../../models'; // 开发环境测试用户ID const TEST_USER_ID = '1'; const router = new Router(); /** * GET /api/book-generator/albums * 获取专辑列表 */ router.get('/albums', async (ctx: Context) => { try { const books = await bookStore.getAllByUser(); // 只返回基本信息 const albums = books.map(book => ({ id: book.id, title: book.title, description: book.description, totalChapters: book.totalChapters, genStage: book.genStage, progress: book.progress, createdAt: book.createdAt, })); ctx.body = { code: 0, message: 'success', data: { albums } }; } catch (error) { console.error('查询失败:', error); ctx.status = 500; ctx.body = { code: 1, message: error instanceof Error ? error.message : '查询失败' }; } }); /** * GET /api/book-generator/list * 获取书籍列表（带分页和日期过滤） */ router.get('/list', optionalAuth, async (ctx: Context) => { try { const { startDate, pageSize = '100' } = ctx.query as { startDate?: string; pageSize?: string }; const userId = ctx.state.user?.userId || TEST_USER_ID; const pageSizeNum = parseInt(pageSize) || 100; const where: any = { OR: [ { userId: parseInt(userId) }, { userId: null }, // 兼容旧数据 ], }; if (startDate) { const start = new Date(startDate); where.createdAt = { gte: start }; } // 获取总数 const total = await prisma.book.count({ where }); // 获取列表 const books = await prisma.book.findMany({ where, include: { chapters: true }, orderBy: [{ createdAt: 'desc' }, { id: 'desc' }], take: pageSizeNum, }); // 转换为前端需要的格式 const list = books.map(book => ({ id: book.id, title: book.title, description: book.description, totalChapters: book.totalChapters, genStage: book.genStage, progress: book.progress, createdAt: book.createdAt, updatedAt: book.updatedAt, chapters: book.chapters.map(ch => ({ id: ch.id, title: ch.title, genStage: ch.genStage, audioUrl: ch.audioUrl, videoUrl: ch.videoUrl, })), })); ctx.body = { code: 0, message: 'success', data: { list, total }, }; } catch (error) { console.error('查询书籍列表失败:', error); ctx.status = 500; ctx.body = { code: 1, message: error instanceof Error ? error.message : '查询失败' }; } }); /** * POST /api/book-generator/albums * 创建专辑 */ router.post('/albums', async (ctx: Context) => { try { const body = ctx.request.body as { title: string; description?: string; }; if (!body.title || body.title.trim().length === 0) { ctx.status = 400; ctx.body = { code: 1, message: '请输入专辑名称' }; return; } const book = await bookStore.create({ title: body.title.trim(), description: body.description || '', totalChapters: 0, // 初始为 0，等待添加章节 }); ctx.body = { code: 0, message: '专辑创建成功', data: { id: book.id, title: book.title, description: book.description, }, }; } catch (error) { console.error('创建失败:', error); ctx.status = 500; ctx.body = { code: 1, message: error instanceof Error ? error.message : '创建失败' }; } }); /** * GET /api/book-generator/albums/:id/chapters * 获取专辑章节列表 * 返回章（level=1）的列表，每个章包含其下所有小节的合并音频 * 过滤规则：公开的音频 + 当前用户自己的音频 */ router.get('/albums/:id/chapters', optionalAuth, async (ctx: Context) => { try { const bookId = ctx.params.id as string; const userId = ctx.state.user?.userId || TEST_USER_ID; // 获取专辑信息 const book = await prisma.book.findUnique({ where: { id: parseInt(bookId) }, }); if (!book) { ctx.status = 404; ctx.body = { code: 1, message: '专辑不存在' }; return; } // 判断是否为所有者（userId为null时也视为所有者，这样无需登录也能访问自己的音频） const isOwner = book.userId === null || book.userId === parseInt(userId); // 获取所有章节 const allChapters = await prisma.bookChapter.findMany({ where: { bookId: parseInt(bookId) }, orderBy: { number: 'asc' }, }); // 构建章(1) -> 节(2) -> 小节(3) 的树形结构 const chapterMap = new Map<number, any>(); const sectionMap = new Map<number, any>(); // 先遍历，构建映射 allChapters.forEach(c => { if (c.level === 1) { chapterMap.set(c.id, { id: String(c.id), bookId: String(c.bookId), number: c.number, title: c.title, wordCount: c.wordCount || 0, genStage: c.genStage || null, audioUrl: c.audioUrl || null, audioDuration: c.audioDuration || 0, videoUrl: c.videoUrl || null, videoDuration: c.videoDuration || 0, isPublic: c.isPublic, level: c.level, subsections: [], // 节和小节列表 }); } else if (c.level === 2) { sectionMap.set(c.id, { id: String(c.id), number: c.number, title: c.title, subsections: [], }); } }); // 收集所有小节及其音频，按章分组 const subsectionsByChapter = new Map<number, { audioUrl: string; audioDuration: number; title: string; isPublic: boolean }[]>(); // 先把3级小节挂到2级节下 const sectionSubsections = new Map<number, { audioUrl: string; audioDuration: number; title: string; isPublic: boolean }[]>(); allChapters.forEach(c => { if (c.level === 3 && c.parentId && c.audioUrl && c.audioUrl.trim() !== '') { if (!sectionSubsections.has(c.parentId)) { sectionSubsections.set(c.parentId, []); } sectionSubsections.get(c.parentId)!.push({ audioUrl: c.audioUrl, audioDuration: c.audioDuration || 0, title: c.title, isPublic: c.isPublic || false, }); } }); // 把2级节挂到1级章下，并收集小节音频 chapterMap.forEach((chapter, chapterId) => { subsectionsByChapter.set(chapterId, []); }); allChapters.forEach(c => { if (c.level === 2 && c.parentId) { const chapter = chapterMap.get(c.parentId); const sectionData = sectionMap.get(c.id); if (chapter && sectionData) { // 获取这个小节的所有小节音频 const subs = sectionSubsections.get(c.id) || []; chapter.subsections.push({ ...sectionData, subsections: subs }); // 把小节音频按章汇总 subs.forEach(s => { subsectionsByChapter.get(c.parentId)!.push(s); }); } } }); // 为每个章设置audioUrl // 优先级：1. 章自身已有的合并音频（_merged） > 2. 章自身的audioUrl > 3. 仅汇总子节时长 // 注意：不再用 subs[0].audioUrl 覆盖章的 audioUrl，因为章的合并音频已在 mergeChapterAudios 中正确写入 chapterMap.forEach((chapter, chapterId) => { const subs = subsectionsByChapter.get(chapterId) || []; if (subs.length > 0 && (!chapter.audioUrl || chapter.audioUrl.trim() === '')) { // 章自身没有音频（短文章以外的情况），仅汇总子节时长，不覆盖audioUrl // 前端播放章级别时会通过 player 接口自动触发合并 chapter.audioDuration = subs.reduce((acc, s) => acc + s.audioDuration, 0); } else if (subs.length > 0) { // 章已有音频（可能是合并后的 _merged 音频），保留它，只汇总时长 chapter.audioDuration = subs.reduce((acc, s) => acc + s.audioDuration, 0); } // 否则保持章自己的audioUrl（短文章直接生成在章上） }); // 转换为数组并应用过滤规则 let chapters = Array.from(chapterMap.values()); // 应用公开过滤（只影响非所有者） if (!isOwner) { chapters = chapters.map(chapter => { // 检查是否有公开的小节音频 const hasPublicSubsection = chapter.subsections?.some((s: any) => s.subsections?.some((sub: any) => sub.isPublic === true && sub.audioUrl) ); // 检查章节本身是否有公开音频 const hasOwnPublicAudio = chapter.audioUrl && chapter.audioUrl.trim() !== '' && chapter.isPublic === true; if (!hasPublicSubsection && !hasOwnPublicAudio) { return { ...chapter, audioUrl: null, }; } return chapter; }); } ctx.body = { code: 0, message: 'success', data: { chapters, isOwner, }, }; } catch (error) { console.error('查询失败:', error); ctx.status = 500; ctx.body = { code: 1, message: error instanceof Error ? error.message : '查询失败' }; } }); /** * POST /api/book-generator/albums/:id/chapters/:chapterId/merge-audio * 合并章下所有小节音频为单个文件 */ router.post('/albums/:id/chapters/:chapterId/merge-audio', optionalAuth, async (ctx: Context) => { try { const bookId = ctx.params.id as string; const chapterId = parseInt(ctx.params.chapterId as string); // 获取章信息 const chapter = await prisma.bookChapter.findFirst({ where: { id: chapterId, level: 1 }, }); if (!chapter) { ctx.status = 404; ctx.body = { code: 1, message: '章节不存在' }; return; } // 获取这个章下所有的2级节 const sections = await prisma.bookChapter.findMany({ where: { parentId: chapterId, level: 2 }, orderBy: { number: 'asc' }, }); // 获取每个节下所有有音频的小节 const allAudioUrls: string[] = []; for (const section of sections) { const subsections = await prisma.bookChapter.findMany({ where: { parentId: section.id, level: 3, audioUrl: { not: '' } }, orderBy: { number: 'asc' }, }); subsections.forEach(sub => { if (sub.audioUrl) { allAudioUrls.push(sub.audioUrl); } }); } if (allAudioUrls.length === 0) { ctx.status = 400; ctx.body = { code: 1, message: '没有可合并的音频' }; return; } // 生成合并后的文件路径 const outputDir = path.join(process.cwd(), 'uploads', 'merged', bookId); const outputPath = path.join(outputDir, `chapter_${chapterId}_merged.mp3`); // 确保目录存在 const fs = require('fs'); if (!fs.existsSync(outputDir)) { fs.mkdirSync(outputDir, { recursive: true }); } // 合并音频 const { AudioMerger } = await import('../tts/audio-merger.js'); const mergedPath = await AudioMerger.merge(allAudioUrls, outputPath); // 获取合并后的时长 const duration = await AudioMerger.getDuration(mergedPath); // 更新章的合并音频字段 await prisma.bookChapter.update({ where: { id: chapterId }, data: { audioUrl: `/uploads/merged/${bookId}/chapter_${chapterId}_merged.mp3`, audioDuration: Math.round(duration), }, }); ctx.body = { code: 0, message: '音频合并成功', data: { audioUrl: `/uploads/merged/${bookId}/chapter_${chapterId}_merged.mp3`, duration: Math.round(duration), }, }; } catch (error) { console.error('合并音频失败:', error); ctx.status = 500; ctx.body = { code: 1, message: error instanceof Error ? error.message : '合并音频失败' }; } }); /** * GET /api/book-generator/albums/chapters/:id * 获取单个章节详情 */ router.get('/albums/chapters/:id', optionalAuth, async (ctx: Context) => { try { const chapterId = parseInt(ctx.params.id as string); // 获取章节详情 const chapter = await prisma.bookChapter.findUnique({ where: { id: chapterId }, }); if (!chapter) { ctx.status = 404; ctx.body = { code: 1, message: '章节不存在' }; return; } ctx.body = { code: 0, message: 'success', data: { id: String(chapter.id), bookId: String(chapter.bookId), parentId: chapter.parentId ? String(chapter.parentId) : null, number: chapter.number, title: chapter.title, content: chapter.content || '', genStage: chapter.genStage || null, level: chapter.level, audioUrl: chapter.audioUrl || null, audioDuration: chapter.audioDuration || 0, videoUrl: chapter.videoUrl || null, videoDuration: chapter.videoDuration || 0, wordCount: chapter.wordCount || 0, isPublic: chapter.isPublic || false, }, }; } catch (error) { console.error('查询章节详情失败:', error); ctx.status = 500; ctx.body = { code: 1, message: error instanceof Error ? error.message : '查询失败' }; } }); export default router; |