Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 | import { prisma } from '../../models'; import { AudioMerger } from '../tts/audio-merger'; import path from 'path'; /** * 获取用户播放记录 */ export async function getPlayProgress(userId: string, chapterId?: number) { const userIdNum = parseInt(userId); const where: any = { userId: userIdNum }; if (chapterId) { where.chapterId = chapterId; } const records = await prisma.playRecord.findMany({ where, include: { chapter: { select: { id: true, number: true, title: true, audioUrl: true, audioDuration: true, }, }, }, orderBy: { updatedAt: 'desc' }, }); return records; } /** * 保存播放进度 */ export async function savePlayProgress( userId: string, chapterId: number, progress: number, duration: number ) { const userIdNum = parseInt(userId); // 使用 upsert 语义：如果不存在则创建，存在则更新 const existing = await prisma.playRecord.findUnique({ where: { userId_chapterId: { userId: userIdNum, chapterId, }, }, }); if (existing) { // 更新 return await prisma.playRecord.update({ where: { userId_chapterId: { userId: userIdNum, chapterId, }, }, data: { progress, duration, }, }); } else { // 创建 return await prisma.playRecord.create({ data: { userId: userIdNum, chapterId, progress, duration, }, }); } } /** * 删除播放记录 */ export async function deletePlayRecord(userId: string, chapterId: number) { const userIdNum = parseInt(userId); return await prisma.playRecord.delete({ where: { userId_chapterId: { userId: userIdNum, chapterId, }, }, }); } /** * 更新播放进度 */ export async function updatePlayProgress( userId: string, chapterId: number, progress: number, duration?: number ) { const userIdNum = parseInt(userId); const data: any = { progress }; if (duration !== undefined) { data.duration = duration; } return await prisma.playRecord.update({ where: { userId_chapterId: { userId: userIdNum, chapterId, }, }, data, }); } /** * 获取单个章节的播放进度 */ export async function getSingleProgress(userId: string, chapterId: number) { const userIdNum = parseInt(userId); const record = await prisma.playRecord.findUnique({ where: { userId_chapterId: { userId: userIdNum, chapterId, }, }, }); return record; } /** * 合并章节的所有小节音频 * 当播放章（level=1）时，自动合并其下所有小节（level=3）的音频 * @param chapterId 章的ID (level=1) * @returns 合并后的音频URL */ export async function mergeChapterAudios(chapterId: number): Promise<string | null> { // 获取章节信息 let chapter = await prisma.bookChapter.findUnique({ where: { id: chapterId }, }); if (!chapter) { console.error(`❌ 章节 ${chapterId} 不存在`); return null; } // 如果不是1级章，向上追溯到1级章（兼容调用方传入节/section的ID） let effectiveChapterId = chapterId; if (chapter.level !== 1) { console.log(`[MergeAudio] 当前节点 level=${chapter.level}，向上追溯1级章...`); let currentLevel = chapter.level; let currentId = chapter.id; let currentParentId = chapter.parentId; while (currentLevel > 1 && currentParentId) { const parent = await prisma.bookChapter.findUnique({ where: { id: currentParentId }, select: { id: true, level: true, parentId: true }, }); if (!parent) break; currentLevel = parent.level; currentId = parent.id; currentParentId = parent.parentId; } if (currentLevel !== 1) { console.log(`[MergeAudio] ⏭️ 无法找到1级章，当前追溯结果 level=${currentLevel}`); return null; } console.log(`[MergeAudio] 追溯到1级章 id=${currentId}，重新查询完整信息`); chapter = await prisma.bookChapter.findUnique({ where: { id: currentId }, }); if (!chapter) { console.error(`❌ 追溯到的1级章 ${currentId} 不存在`); return null; } effectiveChapterId = chapter.id; } // 如果已经有合并后的音频（audioUrl存在且是合并后的），直接返回 if (chapter.audioUrl && chapter.audioUrl.includes('_merged')) { console.log(`✅ 章节 ${chapterId} 已有合并音频: ${chapter.audioUrl}`); return chapter.audioUrl; } // 1. 找到所有节（level=2，parentId=章ID） const sections = await prisma.bookChapter.findMany({ where: { parentId: effectiveChapterId, level: 2, }, orderBy: { number: 'asc' }, }); if (sections.length === 0) { console.log(`⏭️ 章 ${effectiveChapterId} 没有子节`); return null; } // 2. 收集待合并的音频URL // 先尝试查找 level=3 小节（3层树：章→节→小节） const sectionIds = sections.map(s => s.id); const subsections = await prisma.bookChapter.findMany({ where: { parentId: { in: sectionIds }, level: 3, audioUrl: { not: '' }, }, orderBy: { number: 'asc' }, }); let audioFiles: string[]; if (subsections.length > 0) { // 3层树：合并所有 level=3 小节音频 audioFiles = subsections .map(s => s.audioUrl) .filter((url): url is string => !!url); console.log(`🔄 合并章 ${effectiveChapterId} 下 ${audioFiles.length} 个小节(level=3)音频...`); } else { // 2层树：直接合并 level=2 的节音频 audioFiles = sections .filter(s => s.audioUrl && s.audioUrl !== '') .map(s => s.audioUrl!); console.log(`🔄 合并章 ${effectiveChapterId} 下 ${audioFiles.length} 个节(level=2)音频...`); } if (audioFiles.length === 0) { console.log(`⏭️ 章 ${effectiveChapterId} 下没有音频可合并`); return null; } // 3. 生成合并后的输出路径 const uploadsDir = path.join(process.cwd(), 'uploads'); const outputFileName = `chapter_${effectiveChapterId}_merged_${Date.now()}.mp3`; const outputPath = path.join(uploadsDir, outputFileName); // 4. 转换路径：OSS远程URL保持原样，本地路径转为绝对路径 const absoluteAudioFiles = audioFiles.map(f => { if (f.startsWith('http')) return f; // OSS URL 保持原样，AudioMerger 会检测并远程处理 const relativePath = f.replace(/^\//, ''); return path.join(process.cwd(), relativePath); }); try { // 5. 合并音频，捕获返回值（OSS模式返回OSS URL，本地模式返回本地路径） const mergeResult = await AudioMerger.merge(absoluteAudioFiles, outputPath); // 6. 更新章节的 audioUrl // 本地合并返回绝对路径需转为相对URL，OSS合并直接返回远程URL let mergedAudioUrl: string; if (mergeResult.startsWith('http')) { mergedAudioUrl = mergeResult; // OSS URL } else { // 本地绝对路径 → 相对URL const cwd = process.cwd().replace(/\\/g, '/'); const normalized = mergeResult.replace(/\\/g, '/'); mergedAudioUrl = normalized.startsWith(cwd) ? normalized.substring(cwd.length) : `/uploads/${outputFileName}`; } // 获取合并后音频的时长 const mergedDuration = await AudioMerger.getDuration(mergeResult); await prisma.bookChapter.update({ where: { id: effectiveChapterId }, data: { audioUrl: mergedAudioUrl, audioDuration: mergedDuration || 0, }, }); console.log(`✅ 章节 ${effectiveChapterId} 音频合并完成: ${mergedAudioUrl}, 时长: ${mergedDuration}s`); return mergedAudioUrl; } catch (error) { console.error(`❌ 章节 ${effectiveChapterId} 音频合并失败:`, error); return null; } } /** * 获取章节音频URL（如果是章则自动合并小节音频） * @param chapterId 章节ID */ export async function getChapterAudioUrl(chapterId: number): Promise<string | null> { return await mergeChapterAudios(chapterId); } /** * 获取用户最近播放记录 * @param userId 用户ID * @param limit 返回数量限制，默认10条 * @returns 最近播放记录列表 */ export async function getRecentPlayRecords(userId: string, limit: number = 10) { const userIdNum = parseInt(userId); const records = await prisma.playRecord.findMany({ where: { userId: userIdNum }, include: { chapter: { include: { book: { select: { id: true, title: true, coverUrl: true, }, }, }, }, }, orderBy: { updatedAt: 'desc' }, take: limit, }); return records.map((record) => ({ id: record.chapterId.toString(), title: record.chapter?.book?.title || record.chapter?.title || '', coverUrl: record.chapter?.book?.coverUrl || '', progress: Math.round((record.progress / (record.duration || 1)) * 100), updatedAt: record.updatedAt.toISOString(), })); } |