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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 | import Router from '@koa/router'; import { Context } from 'koa'; import path from 'path'; import fs from 'fs'; import * as TtsService from './tts.service'; import { BadRequestError, NotFoundError } from '../../middleware/errorHandler'; import { optionalAuth } from '../../middleware/auth'; import { usageLimitMiddleware, checkWordLimit } from '../../middleware/usageLimit'; import { checkAudioQuota } from '../subscription/subscription.service'; import { prisma } from '../../models'; const router = new Router(); // 获取可用音色列表 router.get('/voices', async (ctx: Context) => { const voices = TtsService.getVoices(); const baseUrl = `${ctx.protocol}://${ctx.host}`; // 为每个音色注入本地预览URL const result = voices.map(v => ({ ...v, preview: fs.existsSync(path.join(process.cwd(), '..', 'voices', `${v.id}.mp3`)) ? `${baseUrl}/tts/voices/${v.id}.mp3` : undefined, })); ctx.body = { code: 0, message: 'success', data: { voices: result }, }; }); // 获取可用 TTS 服务商列表 router.get('/providers', async (ctx: Context) => { const providers = TtsService.getAvailableProviders(); ctx.body = { code: 0, message: 'success', data: { providers }, }; }); // 测试 MySQL 连接 router.get('/test-db', async (ctx: Context) => { try { const count = await prisma.book.count(); ctx.body = { code: 0, message: 'success', data: { count, connectionState: 'connected' }, }; } catch (error: any) { ctx.body = { code: 500, message: 'error', data: { error: error.message }, }; } }); // 生成音频（异步模式 - 复用有声书生成立逻辑） router.post( '/generate', optionalAuth, async (ctx: Context) => { const userId = ctx.state.user?.userId; const { text, voiceId, voiceParams, bookId, chapterTitle } = ctx.request.body as { text: string; voiceId: string; voiceParams?: { speed?: number; pitch?: number; volume?: number }; bookId?: string; chapterTitle?: string; }; // 调试日志 console.log('📥 收到 TTS 请求:', { textLength: text?.length, voiceId, voiceParams, bookId, chapterTitle }); // 参数验证 if (!text || text.trim().length === 0) { throw new BadRequestError('请输入要转换的文本'); } if (text.trim().length < 10) { throw new BadRequestError('文本过短，至少需要10个字符'); } if (!voiceId) { throw new BadRequestError('请选择音色'); } // 如果指定了 bookId，验证书籍是否存在 if (bookId) { const book = await prisma.book.findUnique({ where: { id: parseInt(bookId) } }); if (!book) { throw new NotFoundError('书籍不存在'); } } // ========== 统一音频分钟配额检查 ========== const wordCount = text.length; const effectiveUserId = userId ? parseInt(userId) : null; if (effectiveUserId) { const audioQuota = await checkAudioQuota(effectiveUserId, wordCount); if (!audioQuota.allowed) { throw new BadRequestError(audioQuota.reason as string); } } // 默认参数 const params = { speed: voiceParams?.speed || 1.0, pitch: voiceParams?.pitch || 0, volume: voiceParams?.volume || 50, }; // 复用有声书生成立逻辑：创建章节 + 入队 TtsTask，立即返回 const result = await TtsService.requestTtsGeneration(userId, text, voiceId, params, { bookId, chapterTitle, }); ctx.body = { code: 0, message: '音频生成任务已创建，正在排队处理', data: result, // { chapterId, bookId } }; } ); // 获取音频生成状态 router.get('/status/:audioId', async (ctx: Context) => { const { audioId } = ctx.params; const result = await TtsService.getAudioStatus(audioId); if (result.status === 'not_found') { throw new NotFoundError('音频不存在'); } ctx.body = { code: 0, message: 'success', data: result, }; }); // 获取章节音频生成状态（供前端轮询） router.get('/chapter-status/:chapterId', async (ctx: Context) => { const { chapterId } = ctx.params; const id = parseInt(chapterId); if (isNaN(id)) { throw new BadRequestError('无效的章节ID'); } const chapter = await prisma.bookChapter.findUnique({ where: { id }, select: { id: true, genStage: true, audioUrl: true, audioDuration: true, title: true, }, }); if (!chapter) { throw new NotFoundError('章节不存在'); } ctx.body = { code: 0, message: 'success', data: { chapterId: chapter.id, genStage: chapter.genStage, audioUrl: chapter.audioUrl, audioDuration: chapter.audioDuration, title: chapter.title, isReady: chapter.genStage === 'audio_completed' || chapter.genStage === 'video_generating' || chapter.genStage === 'video_completed', isFailed: chapter.genStage === 'failed', }, }; }); // 预览音色 - 优先使用本地样本文件，不存在时才调用API生成 router.post('/preview', async (ctx: Context) => { const { voiceId } = ctx.request.body as { voiceId: string; voiceParams?: { speed?: number; pitch?: number; volume?: number }; }; if (!voiceId) { throw new BadRequestError('请选择音色'); } const baseUrl = `${ctx.protocol}://${ctx.host}`; const localFile = `/tts/voices/${voiceId}.mp3`; const filePath = path.join(process.cwd(), '..', 'voices', `${voiceId}.mp3`); // 检查本地样本文件是否存在 if (fs.existsSync(filePath)) { console.log(`🎵 [Preview] 使用本地样本: ${voiceId}`); ctx.body = { code: 0, message: 'success', data: { previewText: `${voiceId} 音色试听`, voiceId, audioUrl: `${baseUrl}${localFile}`, }, }; return; } // 本地不存在，降级到 API 生成 console.log(`🔊 [Preview] 本地无样本，API生成: ${voiceId}`); const previewText = '你好，欢迎使用AI有声书'; try { const result = await TtsService.generatePreview(voiceId, undefined, undefined); ctx.body = { code: 0, message: 'success', data: { previewText, voiceId, audioUrl: result.audioUrl }, }; } catch (error: any) { ctx.body = { code: 500, message: '预览生成失败：' + error.message, data: null, }; } }); // 获取音频下载信息 router.get('/download/:audioId', async (ctx: Context) => { const { audioId } = ctx.params; try { const audioRecord = await prisma.audioRecord.findUnique({ where: { id: parseInt(audioId) }, }); if (!audioRecord) { throw new NotFoundError('音频不存在'); } // 检查是否有音频URL if (!audioRecord.audioUrl) { throw new NotFoundError('音频文件不存在'); } // 返回下载信息（前端直接使用 URL 下载） ctx.body = { code: 0, message: 'success', data: { id: audioRecord.id, title: audioRecord.title, audioUrl: audioRecord.audioUrl, duration: audioRecord.audioDuration, size: audioRecord.audioSize, downloadUrl: audioRecord.audioUrl, // 直接使用音频URL下载 }, }; } catch (error: any) { if (error instanceof NotFoundError) { throw error; } console.error('获取下载信息失败:', error); ctx.status = 500; ctx.body = { code: 500, message: '获取下载信息失败: ' + error.message }; } }); // 批量下载音频（获取下载链接列表） router.post('/download/batch', async (ctx: Context) => { const { audioIds } = ctx.request.body as { audioIds: string[] }; if (!audioIds || audioIds.length === 0) { throw new BadRequestError('请选择要下载的音频'); } if (audioIds.length > 50) { throw new BadRequestError('一次最多下载50个音频'); } try { const audios = await prisma.audioRecord.findMany({ where: { id: { in: audioIds.map(id => parseInt(id)), }, }, select: { id: true, title: true, audioUrl: true, audioDuration: true, audioSize: true, }, }); // 过滤出有音频URL的记录 const validAudios = audios.filter(a => a.audioUrl); ctx.body = { code: 0, message: 'success', data: { total: validAudios.length, audios: validAudios.map(a => ({ id: a.id, title: a.title, downloadUrl: a.audioUrl, duration: a.audioDuration, size: a.audioSize, })), }, }; } catch (error: any) { console.error('批量下载失败:', error); ctx.body = { code: 500, message: '批量下载失败: ' + error.message }; } }); export default router; |