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  22.         <h1><a href="../../index.html">All files</a> / <a href="index.html">modules/tts</a> tts.controller.ts</h1>
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  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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  244. <a name='L179'></a><a href='#L179'>179</a>
    245. 

  245. <a name='L180'></a><a href='#L180'>180</a>
    246. 

  246. <a name='L181'></a><a href='#L181'>181</a>
    247. 

  247. <a name='L182'></a><a href='#L182'>182</a>
    248. 

  248. <a name='L183'></a><a href='#L183'>183</a>
    249. 

  249. <a name='L184'></a><a href='#L184'>184</a>
    250. 

  250. <a name='L185'></a><a href='#L185'>185</a>
    251. 

  251. <a name='L186'></a><a href='#L186'>186</a>
    252. 

  252. <a name='L187'></a><a href='#L187'>187</a>
    253. 

  253. <a name='L188'></a><a href='#L188'>188</a>
    254. 

  254. <a name='L189'></a><a href='#L189'>189</a>
    255. 

  255. <a name='L190'></a><a href='#L190'>190</a>
    256. 

  256. <a name='L191'></a><a href='#L191'>191</a>
    257. 

  257. <a name='L192'></a><a href='#L192'>192</a>
    258. 

  258. <a name='L193'></a><a href='#L193'>193</a>
    259. 

  259. <a name='L194'></a><a href='#L194'>194</a>
    260. 

  260. <a name='L195'></a><a href='#L195'>195</a>
    261. 

  261. <a name='L196'></a><a href='#L196'>196</a>
    262. 

  262. <a name='L197'></a><a href='#L197'>197</a>
    263. 

  263. <a name='L198'></a><a href='#L198'>198</a>
    264. 

  264. <a name='L199'></a><a href='#L199'>199</a>
    265. 

  265. <a name='L200'></a><a href='#L200'>200</a>
    266. 

  266. <a name='L201'></a><a href='#L201'>201</a>
    267. 

  267. <a name='L202'></a><a href='#L202'>202</a>
    268. 

  268. <a name='L203'></a><a href='#L203'>203</a>
    269. 

  269. <a name='L204'></a><a href='#L204'>204</a>
    270. 

  270. <a name='L205'></a><a href='#L205'>205</a>
    271. 

  271. <a name='L206'></a><a href='#L206'>206</a>
    272. 

  272. <a name='L207'></a><a href='#L207'>207</a>
    273. 

  273. <a name='L208'></a><a href='#L208'>208</a>
    274. 

  274. <a name='L209'></a><a href='#L209'>209</a>
    275. 

  275. <a name='L210'></a><a href='#L210'>210</a>
    276. 

  276. <a name='L211'></a><a href='#L211'>211</a>
    277. 

  277. <a name='L212'></a><a href='#L212'>212</a>
    278. 

  278. <a name='L213'></a><a href='#L213'>213</a>
    279. 

  279. <a name='L214'></a><a href='#L214'>214</a>
    280. 

  280. <a name='L215'></a><a href='#L215'>215</a>
    281. 

  281. <a name='L216'></a><a href='#L216'>216</a>
    282. 

  282. <a name='L217'></a><a href='#L217'>217</a>
    283. 

  283. <a name='L218'></a><a href='#L218'>218</a>
    284. 

  284. <a name='L219'></a><a href='#L219'>219</a>
    285. 

  285. <a name='L220'></a><a href='#L220'>220</a>
    286. 

  286. <a name='L221'></a><a href='#L221'>221</a>
    287. 

  287. <a name='L222'></a><a href='#L222'>222</a>
    288. 

  288. <a name='L223'></a><a href='#L223'>223</a>
    289. 

  289. <a name='L224'></a><a href='#L224'>224</a>
    290. 

  290. <a name='L225'></a><a href='#L225'>225</a>
    291. 

  291. <a name='L226'></a><a href='#L226'>226</a>
    292. 

  292. <a name='L227'></a><a href='#L227'>227</a>
    293. 

  293. <a name='L228'></a><a href='#L228'>228</a>
    294. 

  294. <a name='L229'></a><a href='#L229'>229</a>
    295. 

  295. <a name='L230'></a><a href='#L230'>230</a>
    296. 

  296. <a name='L231'></a><a href='#L231'>231</a>
    297. 

  297. <a name='L232'></a><a href='#L232'>232</a>
    298. 

  298. <a name='L233'></a><a href='#L233'>233</a>
    299. 

  299. <a name='L234'></a><a href='#L234'>234</a>
    300. 

  300. <a name='L235'></a><a href='#L235'>235</a>
    301. 

  301. <a name='L236'></a><a href='#L236'>236</a>
    302. 

  302. <a name='L237'></a><a href='#L237'>237</a>
    303. 

  303. <a name='L238'></a><a href='#L238'>238</a>
    304. 

  304. <a name='L239'></a><a href='#L239'>239</a>
    305. 

  305. <a name='L240'></a><a href='#L240'>240</a>
    306. 

  306. <a name='L241'></a><a href='#L241'>241</a>
    307. 

  307. <a name='L242'></a><a href='#L242'>242</a>
    308. 

  308. <a name='L243'></a><a href='#L243'>243</a>
    309. 

  309. <a name='L244'></a><a href='#L244'>244</a>
    310. 

  310. <a name='L245'></a><a href='#L245'>245</a>
    311. 

  311. <a name='L246'></a><a href='#L246'>246</a>
    312. 

  312. <a name='L247'></a><a href='#L247'>247</a>
    313. 

  313. <a name='L248'></a><a href='#L248'>248</a>
    314. 

  314. <a name='L249'></a><a href='#L249'>249</a>
    315. 

  315. <a name='L250'></a><a href='#L250'>250</a>
    316. 

  316. <a name='L251'></a><a href='#L251'>251</a>
    317. 

  317. <a name='L252'></a><a href='#L252'>252</a>
    318. 

  318. <a name='L253'></a><a href='#L253'>253</a>
    319. 

  319. <a name='L254'></a><a href='#L254'>254</a>
    320. 

  320. <a name='L255'></a><a href='#L255'>255</a>
    321. 

  321. <a name='L256'></a><a href='#L256'>256</a>
    322. 

  322. <a name='L257'></a><a href='#L257'>257</a>
    323. 

  323. <a name='L258'></a><a href='#L258'>258</a>
    324. 

  324. <a name='L259'></a><a href='#L259'>259</a>
    325. 

  325. <a name='L260'></a><a href='#L260'>260</a>
    326. 

  326. <a name='L261'></a><a href='#L261'>261</a>
    327. 

  327. <a name='L262'></a><a href='#L262'>262</a>
    328. 

  328. <a name='L263'></a><a href='#L263'>263</a>
    329. 

  329. <a name='L264'></a><a href='#L264'>264</a>
    330. 

  330. <a name='L265'></a><a href='#L265'>265</a>
    331. 

  331. <a name='L266'></a><a href='#L266'>266</a>
    332. 

  332. <a name='L267'></a><a href='#L267'>267</a>
    333. 

  333. <a name='L268'></a><a href='#L268'>268</a>
    334. 

  334. <a name='L269'></a><a href='#L269'>269</a>
    335. 

  335. <a name='L270'></a><a href='#L270'>270</a>
    336. 

  336. <a name='L271'></a><a href='#L271'>271</a>
    337. 

  337. <a name='L272'></a><a href='#L272'>272</a>
    338. 

  338. <a name='L273'></a><a href='#L273'>273</a>
    339. 

  339. <a name='L274'></a><a href='#L274'>274</a>
    340. 

  340. <a name='L275'></a><a href='#L275'>275</a>
    341. 

  341. <a name='L276'></a><a href='#L276'>276</a>
    342. 

  342. <a name='L277'></a><a href='#L277'>277</a>
    343. 

  343. <a name='L278'></a><a href='#L278'>278</a>
    344. 

  344. <a name='L279'></a><a href='#L279'>279</a>
    345. 

  345. <a name='L280'></a><a href='#L280'>280</a>
    346. 

  346. <a name='L281'></a><a href='#L281'>281</a>
    347. 

  347. <a name='L282'></a><a href='#L282'>282</a>
    348. 

  348. <a name='L283'></a><a href='#L283'>283</a>
    349. 

  349. <a name='L284'></a><a href='#L284'>284</a>
    350. 

  350. <a name='L285'></a><a href='#L285'>285</a>
    351. 

  351. <a name='L286'></a><a href='#L286'>286</a>
    352. 

  352. <a name='L287'></a><a href='#L287'>287</a>
    353. 

  353. <a name='L288'></a><a href='#L288'>288</a>
    354. 

  354. <a name='L289'></a><a href='#L289'>289</a>
    355. 

  355. <a name='L290'></a><a href='#L290'>290</a>
    356. 

  356. <a name='L291'></a><a href='#L291'>291</a>
    357. 

  357. <a name='L292'></a><a href='#L292'>292</a>
    358. 

  358. <a name='L293'></a><a href='#L293'>293</a>
    359. 

  359. <a name='L294'></a><a href='#L294'>294</a>
    360. 

  360. <a name='L295'></a><a href='#L295'>295</a>
    361. 

  361. <a name='L296'></a><a href='#L296'>296</a>
    362. 

  362. <a name='L297'></a><a href='#L297'>297</a>
    363. 

  363. <a name='L298'></a><a href='#L298'>298</a>
    364. 

  364. <a name='L299'></a><a href='#L299'>299</a>
    365. 

  365. <a name='L300'></a><a href='#L300'>300</a>
    366. 

  366. <a name='L301'></a><a href='#L301'>301</a>
    367. 

  367. <a name='L302'></a><a href='#L302'>302</a>
    368. 

  368. <a name='L303'></a><a href='#L303'>303</a>
    369. 

  369. <a name='L304'></a><a href='#L304'>304</a>
    370. 

  370. <a name='L305'></a><a href='#L305'>305</a>
    371. 

  371. <a name='L306'></a><a href='#L306'>306</a>
    372. 

  372. <a name='L307'></a><a href='#L307'>307</a>
    373. 

  373. <a name='L308'></a><a href='#L308'>308</a>
    374. 

  374. <a name='L309'></a><a href='#L309'>309</a>
    375. 

  375. <a name='L310'></a><a href='#L310'>310</a>
    376. 

  376. <a name='L311'></a><a href='#L311'>311</a>
    377. 

  377. <a name='L312'></a><a href='#L312'>312</a>
    378. 

  378. <a name='L313'></a><a href='#L313'>313</a>
    379. 

  379. <a name='L314'></a><a href='#L314'>314</a>
    380. 

  380. <a name='L315'></a><a href='#L315'>315</a>
    381. 

  381. <a name='L316'></a><a href='#L316'>316</a>
    382. 

  382. <a name='L317'></a><a href='#L317'>317</a>
    383. 

  383. <a name='L318'></a><a href='#L318'>318</a>
    384. 

  384. <a name='L319'></a><a href='#L319'>319</a>
    385. 

  385. <a name='L320'></a><a href='#L320'>320</a>
    386. 

  386. <a name='L321'></a><a href='#L321'>321</a>
    387. 

  387. <a name='L322'></a><a href='#L322'>322</a>
    388. 

  388. <a name='L323'></a><a href='#L323'>323</a>
    389. 

  389. <a name='L324'></a><a href='#L324'>324</a>
    390. 

  390. <a name='L325'></a><a href='#L325'>325</a>
    391. 

  391. <a name='L326'></a><a href='#L326'>326</a>
    392. 

  392. <a name='L327'></a><a href='#L327'>327</a>
    393. 

  393. <a name='L328'></a><a href='#L328'>328</a>
    394. 

  394. <a name='L329'></a><a href='#L329'>329</a>
    395. 

  395. <a name='L330'></a><a href='#L330'>330</a></td><td class="line-coverage quiet"><span class="cline-any cline-no">&nbsp;</span>
    396. 

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    724. 

  724. <span class="cline-any cline-no">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js"><span class="cstat-no" title="statement not covered" >import Router from '@koa/router';<span class="fstat-no" title="function not covered" ><span class="branch-0 cbranch-no" title="branch not covered" ></span></span></span>
    725. 

  725. import { Context } from 'koa';
    726. 

  726. <span class="cstat-no" title="statement not covered" >import path from 'path';</span>
    727. 

  727. <span class="cstat-no" title="statement not covered" >import fs from 'fs';</span>
    728. 

  728. <span class="cstat-no" title="statement not covered" >import * as TtsService from './tts.service';</span>
    729. 

  729. <span class="cstat-no" title="statement not covered" >import { BadRequestError, NotFoundError } from '../../middleware/errorHandler';</span>
    730. 

  730. <span class="cstat-no" title="statement not covered" >import { optionalAuth } from '../../middleware/auth';</span>
    731. 

  731. import { usageLimitMiddleware, checkWordLimit } from '../../middleware/usageLimit';
    732. 

  732. <span class="cstat-no" title="statement not covered" >import { checkAudioQuota } from '../subscription/subscription.service';</span>
    733. 

  733. <span class="cstat-no" title="statement not covered" >import { prisma } from '../../models';</span>
    734. 

  734. &nbsp;
    735. 

  735. <span class="cstat-no" title="statement not covered" >const router = new Router();</span>
    736. 

  736. &nbsp;
    737. 

  737. // 获取可用音色列表
    738. 

  738. <span class="cstat-no" title="statement not covered" >router.get('/voices', async (ctx: Context) =&gt; {</span>
    739. 

  739. <span class="cstat-no" title="statement not covered" >  const voices = TtsService.getVoices();</span>
    740. 

  740. <span class="cstat-no" title="statement not covered" >  const baseUrl = `${ctx.protocol}://${ctx.host}`;</span>
    741. 

  741. &nbsp;
    742. 

  742.   // 为每个音色注入本地预览URL
    743. 

  743. <span class="cstat-no" title="statement not covered" >  const result = voices.map(v =&gt; ({</span>
    744. 

  744. <span class="cstat-no" title="statement not covered" >    ...v,</span>
    745. 

  745. <span class="cstat-no" title="statement not covered" >    preview: fs.existsSync(path.join(process.cwd(), '..', 'voices', `${v.id}.mp3`))</span>
    746. 

  746. <span class="cstat-no" title="statement not covered" >      ? `${baseUrl}/tts/voices/${v.id}.mp3`</span>
    747. 

  747. <span class="cstat-no" title="statement not covered" >      : undefined,</span>
    748. 

  748. <span class="cstat-no" title="statement not covered" >  }));</span>
    749. 

  749. &nbsp;
    750. 

  750. <span class="cstat-no" title="statement not covered" >  ctx.body = {</span>
    751. 

  751. <span class="cstat-no" title="statement not covered" >    code: 0,</span>
    752. 

  752. <span class="cstat-no" title="statement not covered" >    message: 'success',</span>
    753. 

  753. <span class="cstat-no" title="statement not covered" >    data: { voices: result },</span>
    754. 

  754. <span class="cstat-no" title="statement not covered" >  };</span>
    755. 

  755. <span class="cstat-no" title="statement not covered" >});</span>
    756. 

  756. &nbsp;
    757. 

  757. // 获取可用 TTS 服务商列表
    758. 

  758. <span class="cstat-no" title="statement not covered" >router.get('/providers', async (ctx: Context) =&gt; {</span>
    759. 

  759. <span class="cstat-no" title="statement not covered" >  const providers = TtsService.getAvailableProviders();</span>
    760. 

  760. &nbsp;
    761. 

  761. <span class="cstat-no" title="statement not covered" >  ctx.body = {</span>
    762. 

  762. <span class="cstat-no" title="statement not covered" >    code: 0,</span>
    763. 

  763. <span class="cstat-no" title="statement not covered" >    message: 'success',</span>
    764. 

  764. <span class="cstat-no" title="statement not covered" >    data: { providers },</span>
    765. 

  765. <span class="cstat-no" title="statement not covered" >  };</span>
    766. 

  766. <span class="cstat-no" title="statement not covered" >});</span>
    767. 

  767. &nbsp;
    768. 

  768. // 测试 MySQL 连接
    769. 

  769. <span class="cstat-no" title="statement not covered" >router.get('/test-db', async (ctx: Context) =&gt; {</span>
    770. 

  770. <span class="cstat-no" title="statement not covered" >  try {</span>
    771. 

  771. <span class="cstat-no" title="statement not covered" >    const count = await prisma.book.count();</span>
    772. 

  772. <span class="cstat-no" title="statement not covered" >    ctx.body = {</span>
    773. 

  773. <span class="cstat-no" title="statement not covered" >      code: 0,</span>
    774. 

  774. <span class="cstat-no" title="statement not covered" >      message: 'success',</span>
    775. 

  775. <span class="cstat-no" title="statement not covered" >      data: { count, connectionState: 'connected' },</span>
    776. 

  776. <span class="cstat-no" title="statement not covered" >    };</span>
    777. 

  777. <span class="cstat-no" title="statement not covered" >  } catch (error: any) {</span>
    778. 

  778. <span class="cstat-no" title="statement not covered" >    ctx.body = {</span>
    779. 

  779. <span class="cstat-no" title="statement not covered" >      code: 500,</span>
    780. 

  780. <span class="cstat-no" title="statement not covered" >      message: 'error',</span>
    781. 

  781. <span class="cstat-no" title="statement not covered" >      data: { error: error.message },</span>
    782. 

  782. <span class="cstat-no" title="statement not covered" >    };</span>
    783. 

  783. <span class="cstat-no" title="statement not covered" >  }</span>
    784. 

  784. <span class="cstat-no" title="statement not covered" >});</span>
    785. 

  785. &nbsp;
    786. 

  786. // 生成音频（异步模式 - 复用有声书生成立逻辑）
    787. 

  787. <span class="cstat-no" title="statement not covered" >router.post(</span>
    788. 

  788. <span class="cstat-no" title="statement not covered" >  '/generate',</span>
    789. 

  789. <span class="cstat-no" title="statement not covered" >  optionalAuth,</span>
    790. 

  790. <span class="cstat-no" title="statement not covered" >  async (ctx: Context) =&gt; {</span>
    791. 

  791. <span class="cstat-no" title="statement not covered" >    const userId = ctx.state.user?.userId;</span>
    792. 

  792. <span class="cstat-no" title="statement not covered" >    const { text, voiceId, voiceParams, bookId, chapterTitle } = ctx.request.body as {</span>
    793. 

  793.       text: string;
    794. 

  794.       voiceId: string;
    795. 

  795.       voiceParams?: { speed?: number; pitch?: number; volume?: number };
    796. 

  796.       bookId?: string;
    797. 

  797.       chapterTitle?: string;
    798. 

  798.     };
    799. 

  799. &nbsp;
    800. 

  800.     // 调试日志
    801. 

  801. <span class="cstat-no" title="statement not covered" >    console.log('📥 收到 TTS 请求:', { textLength: text?.length, voiceId, voiceParams, bookId, chapterTitle });</span>
    802. 

  802. &nbsp;
    803. 

  803.     // 参数验证
    804. 

  804. <span class="cstat-no" title="statement not covered" >    if (!text || text.trim().length === 0) {</span>
    805. 

  805. <span class="cstat-no" title="statement not covered" >      throw new BadRequestError('请输入要转换的文本');</span>
    806. 

  806. <span class="cstat-no" title="statement not covered" >    }</span>
    807. 

  807. &nbsp;
    808. 

  808. <span class="cstat-no" title="statement not covered" >    if (text.trim().length &lt; 10) {</span>
    809. 

  809. <span class="cstat-no" title="statement not covered" >      throw new BadRequestError('文本过短，至少需要10个字符');</span>
    810. 

  810. <span class="cstat-no" title="statement not covered" >    }</span>
    811. 

  811. &nbsp;
    812. 

  812. <span class="cstat-no" title="statement not covered" >    if (!voiceId) {</span>
    813. 

  813. <span class="cstat-no" title="statement not covered" >      throw new BadRequestError('请选择音色');</span>
    814. 

  814. <span class="cstat-no" title="statement not covered" >    }</span>
    815. 

  815. &nbsp;
    816. 

  816.     // 如果指定了 bookId，验证书籍是否存在
    817. 

  817. <span class="cstat-no" title="statement not covered" >    if (bookId) {</span>
    818. 

  818. <span class="cstat-no" title="statement not covered" >      const book = await prisma.book.findUnique({ where: { id: parseInt(bookId) } });</span>
    819. 

  819. <span class="cstat-no" title="statement not covered" >      if (!book) {</span>
    820. 

  820. <span class="cstat-no" title="statement not covered" >        throw new NotFoundError('书籍不存在');</span>
    821. 

  821. <span class="cstat-no" title="statement not covered" >      }</span>
    822. 

  822. <span class="cstat-no" title="statement not covered" >    }</span>
    823. 

  823. &nbsp;
    824. 

  824.     // ========== 统一音频分钟配额检查 ==========
    825. 

  825. <span class="cstat-no" title="statement not covered" >    const wordCount = text.length;</span>
    826. 

  826. <span class="cstat-no" title="statement not covered" >    const effectiveUserId = userId ? parseInt(userId) : null;</span>
    827. 

  827. &nbsp;
    828. 

  828. <span class="cstat-no" title="statement not covered" >    if (effectiveUserId) {</span>
    829. 

  829. <span class="cstat-no" title="statement not covered" >      const audioQuota = await checkAudioQuota(effectiveUserId, wordCount);</span>
    830. 

  830. <span class="cstat-no" title="statement not covered" >      if (!audioQuota.allowed) {</span>
    831. 

  831. <span class="cstat-no" title="statement not covered" >        throw new BadRequestError(audioQuota.reason as string);</span>
    832. 

  832. <span class="cstat-no" title="statement not covered" >      }</span>
    833. 

  833. <span class="cstat-no" title="statement not covered" >    }</span>
    834. 

  834. &nbsp;
    835. 

  835.     // 默认参数
    836. 

  836. <span class="cstat-no" title="statement not covered" >    const params = {</span>
    837. 

  837. <span class="cstat-no" title="statement not covered" >      speed: voiceParams?.speed || 1.0,</span>
    838. 

  838. <span class="cstat-no" title="statement not covered" >      pitch: voiceParams?.pitch || 0,</span>
    839. 

  839. <span class="cstat-no" title="statement not covered" >      volume: voiceParams?.volume || 50,</span>
    840. 

  840. <span class="cstat-no" title="statement not covered" >    };</span>
    841. 

  841. &nbsp;
    842. 

  842.     // 复用有声书生成立逻辑：创建章节 + 入队 TtsTask，立即返回
    843. 

  843. <span class="cstat-no" title="statement not covered" >    const result = await TtsService.requestTtsGeneration(userId, text, voiceId, params, {</span>
    844. 

  844. <span class="cstat-no" title="statement not covered" >      bookId,</span>
    845. 

  845. <span class="cstat-no" title="statement not covered" >      chapterTitle,</span>
    846. 

  846. <span class="cstat-no" title="statement not covered" >    });</span>
    847. 

  847. &nbsp;
    848. 

  848. <span class="cstat-no" title="statement not covered" >    ctx.body = {</span>
    849. 

  849. <span class="cstat-no" title="statement not covered" >      code: 0,</span>
    850. 

  850. <span class="cstat-no" title="statement not covered" >      message: '音频生成任务已创建，正在排队处理',</span>
    851. 

  851. <span class="cstat-no" title="statement not covered" >      data: result, // { chapterId, bookId }</span>
    852. 

  852. <span class="cstat-no" title="statement not covered" >    };</span>
    853. 

  853. <span class="cstat-no" title="statement not covered" >  }</span>
    854. 

  854. <span class="cstat-no" title="statement not covered" >);</span>
    855. 

  855. &nbsp;
    856. 

  856. // 获取音频生成状态
    857. 

  857. <span class="cstat-no" title="statement not covered" >router.get('/status/:audioId', async (ctx: Context) =&gt; {</span>
    858. 

  858. <span class="cstat-no" title="statement not covered" >  const { audioId } = ctx.params;</span>
    859. 

  859. <span class="cstat-no" title="statement not covered" >  const result = await TtsService.getAudioStatus(audioId);</span>
    860. 

  860. &nbsp;
    861. 

  861. <span class="cstat-no" title="statement not covered" >  if (result.status === 'not_found') {</span>
    862. 

  862. <span class="cstat-no" title="statement not covered" >    throw new NotFoundError('音频不存在');</span>
    863. 

  863. <span class="cstat-no" title="statement not covered" >  }</span>
    864. 

  864. &nbsp;
    865. 

  865. <span class="cstat-no" title="statement not covered" >  ctx.body = {</span>
    866. 

  866. <span class="cstat-no" title="statement not covered" >    code: 0,</span>
    867. 

  867. <span class="cstat-no" title="statement not covered" >    message: 'success',</span>
    868. 

  868. <span class="cstat-no" title="statement not covered" >    data: result,</span>
    869. 

  869. <span class="cstat-no" title="statement not covered" >  };</span>
    870. 

  870. <span class="cstat-no" title="statement not covered" >});</span>
    871. 

  871. &nbsp;
    872. 

  872. // 获取章节音频生成状态（供前端轮询）
    873. 

  873. <span class="cstat-no" title="statement not covered" >router.get('/chapter-status/:chapterId', async (ctx: Context) =&gt; {</span>
    874. 

  874. <span class="cstat-no" title="statement not covered" >  const { chapterId } = ctx.params;</span>
    875. 

  875. <span class="cstat-no" title="statement not covered" >  const id = parseInt(chapterId);</span>
    876. 

  876. &nbsp;
    877. 

  877. <span class="cstat-no" title="statement not covered" >  if (isNaN(id)) {</span>
    878. 

  878. <span class="cstat-no" title="statement not covered" >    throw new BadRequestError('无效的章节ID');</span>
    879. 

  879. <span class="cstat-no" title="statement not covered" >  }</span>
    880. 

  880. &nbsp;
    881. 

  881. <span class="cstat-no" title="statement not covered" >  const chapter = await prisma.bookChapter.findUnique({</span>
    882. 

  882. <span class="cstat-no" title="statement not covered" >    where: { id },</span>
    883. 

  883. <span class="cstat-no" title="statement not covered" >    select: {</span>
    884. 

  884. <span class="cstat-no" title="statement not covered" >      id: true,</span>
    885. 

  885. <span class="cstat-no" title="statement not covered" >      genStage: true,</span>
    886. 

  886. <span class="cstat-no" title="statement not covered" >      audioUrl: true,</span>
    887. 

  887. <span class="cstat-no" title="statement not covered" >      audioDuration: true,</span>
    888. 

  888. <span class="cstat-no" title="statement not covered" >      title: true,</span>
    889. 

  889. <span class="cstat-no" title="statement not covered" >    },</span>
    890. 

  890. <span class="cstat-no" title="statement not covered" >  });</span>
    891. 

  891. &nbsp;
    892. 

  892. <span class="cstat-no" title="statement not covered" >  if (!chapter) {</span>
    893. 

  893. <span class="cstat-no" title="statement not covered" >    throw new NotFoundError('章节不存在');</span>
    894. 

  894. <span class="cstat-no" title="statement not covered" >  }</span>
    895. 

  895. &nbsp;
    896. 

  896. <span class="cstat-no" title="statement not covered" >  ctx.body = {</span>
    897. 

  897. <span class="cstat-no" title="statement not covered" >    code: 0,</span>
    898. 

  898. <span class="cstat-no" title="statement not covered" >    message: 'success',</span>
    899. 

  899. <span class="cstat-no" title="statement not covered" >    data: {</span>
    900. 

  900. <span class="cstat-no" title="statement not covered" >      chapterId: chapter.id,</span>
    901. 

  901. <span class="cstat-no" title="statement not covered" >      genStage: chapter.genStage,</span>
    902. 

  902. <span class="cstat-no" title="statement not covered" >      audioUrl: chapter.audioUrl,</span>
    903. 

  903. <span class="cstat-no" title="statement not covered" >      audioDuration: chapter.audioDuration,</span>
    904. 

  904. <span class="cstat-no" title="statement not covered" >      title: chapter.title,</span>
    905. 

  905. <span class="cstat-no" title="statement not covered" >      isReady: chapter.genStage === 'audio_completed' || chapter.genStage === 'video_generating' || chapter.genStage === 'video_completed',</span>
    906. 

  906. <span class="cstat-no" title="statement not covered" >      isFailed: chapter.genStage === 'failed',</span>
    907. 

  907. <span class="cstat-no" title="statement not covered" >    },</span>
    908. 

  908. <span class="cstat-no" title="statement not covered" >  };</span>
    909. 

  909. <span class="cstat-no" title="statement not covered" >});</span>
    910. 

  910. &nbsp;
    911. 

  911. // 预览音色 - 优先使用本地样本文件，不存在时才调用API生成
    912. 

  912. <span class="cstat-no" title="statement not covered" >router.post('/preview', async (ctx: Context) =&gt; {</span>
    913. 

  913. <span class="cstat-no" title="statement not covered" >  const { voiceId } = ctx.request.body as {</span>
    914. 

  914.     voiceId: string;
    915. 

  915.     voiceParams?: { speed?: number; pitch?: number; volume?: number };
    916. 

  916.   };
    917. 

  917. &nbsp;
    918. 

  918. <span class="cstat-no" title="statement not covered" >  if (!voiceId) {</span>
    919. 

  919. <span class="cstat-no" title="statement not covered" >    throw new BadRequestError('请选择音色');</span>
    920. 

  920. <span class="cstat-no" title="statement not covered" >  }</span>
    921. 

  921. &nbsp;
    922. 

  922. <span class="cstat-no" title="statement not covered" >  const baseUrl = `${ctx.protocol}://${ctx.host}`;</span>
    923. 

  923. <span class="cstat-no" title="statement not covered" >  const localFile = `/tts/voices/${voiceId}.mp3`;</span>
    924. 

  924. <span class="cstat-no" title="statement not covered" >  const filePath = path.join(process.cwd(), '..', 'voices', `${voiceId}.mp3`);</span>
    925. 

  925. &nbsp;
    926. 

  926.   // 检查本地样本文件是否存在
    927. 

  927. <span class="cstat-no" title="statement not covered" >  if (fs.existsSync(filePath)) {</span>
    928. 

  928. <span class="cstat-no" title="statement not covered" >    console.log(`🎵 [Preview] 使用本地样本: ${voiceId}`);</span>
    929. 

  929. <span class="cstat-no" title="statement not covered" >    ctx.body = {</span>
    930. 

  930. <span class="cstat-no" title="statement not covered" >      code: 0,</span>
    931. 

  931. <span class="cstat-no" title="statement not covered" >      message: 'success',</span>
    932. 

  932. <span class="cstat-no" title="statement not covered" >      data: {</span>
    933. 

  933. <span class="cstat-no" title="statement not covered" >        previewText: `${voiceId} 音色试听`,</span>
    934. 

  934. <span class="cstat-no" title="statement not covered" >        voiceId,</span>
    935. 

  935. <span class="cstat-no" title="statement not covered" >        audioUrl: `${baseUrl}${localFile}`,</span>
    936. 

  936. <span class="cstat-no" title="statement not covered" >      },</span>
    937. 

  937. <span class="cstat-no" title="statement not covered" >    };</span>
    938. 

  938. <span class="cstat-no" title="statement not covered" >    return;</span>
    939. 

  939. <span class="cstat-no" title="statement not covered" >  }</span>
    940. 

  940. &nbsp;
    941. 

  941.   // 本地不存在，降级到 API 生成
    942. 

  942. <span class="cstat-no" title="statement not covered" >  console.log(`🔊 [Preview] 本地无样本，API生成: ${voiceId}`);</span>
    943. 

  943. <span class="cstat-no" title="statement not covered" >  const previewText = '你好，欢迎使用AI有声书';</span>
    944. 

  944. &nbsp;
    945. 

  945. <span class="cstat-no" title="statement not covered" >  try {</span>
    946. 

  946. <span class="cstat-no" title="statement not covered" >    const result = await TtsService.generatePreview(voiceId, undefined, undefined);</span>
    947. 

  947. <span class="cstat-no" title="statement not covered" >    ctx.body = {</span>
    948. 

  948. <span class="cstat-no" title="statement not covered" >      code: 0,</span>
    949. 

  949. <span class="cstat-no" title="statement not covered" >      message: 'success',</span>
    950. 

  950. <span class="cstat-no" title="statement not covered" >      data: { previewText, voiceId, audioUrl: result.audioUrl },</span>
    951. 

  951. <span class="cstat-no" title="statement not covered" >    };</span>
    952. 

  952. <span class="cstat-no" title="statement not covered" >  } catch (error: any) {</span>
    953. 

  953. <span class="cstat-no" title="statement not covered" >    ctx.body = {</span>
    954. 

  954. <span class="cstat-no" title="statement not covered" >      code: 500,</span>
    955. 

  955. <span class="cstat-no" title="statement not covered" >      message: '预览生成失败：' + error.message,</span>
    956. 

  956. <span class="cstat-no" title="statement not covered" >      data: null,</span>
    957. 

  957. <span class="cstat-no" title="statement not covered" >    };</span>
    958. 

  958. <span class="cstat-no" title="statement not covered" >  }</span>
    959. 

  959. <span class="cstat-no" title="statement not covered" >});</span>
    960. 

  960. &nbsp;
    961. 

  961. // 获取音频下载信息
    962. 

  962. <span class="cstat-no" title="statement not covered" >router.get('/download/:audioId', async (ctx: Context) =&gt; {</span>
    963. 

  963. <span class="cstat-no" title="statement not covered" >  const { audioId } = ctx.params;</span>
    964. 

  964.   
    965. 

  965. <span class="cstat-no" title="statement not covered" >  try {</span>
    966. 

  966. <span class="cstat-no" title="statement not covered" >    const audioRecord = await prisma.audioRecord.findUnique({</span>
    967. 

  967. <span class="cstat-no" title="statement not covered" >      where: { id: parseInt(audioId) },</span>
    968. 

  968. <span class="cstat-no" title="statement not covered" >    });</span>
    969. 

  969. &nbsp;
    970. 

  970. <span class="cstat-no" title="statement not covered" >    if (!audioRecord) {</span>
    971. 

  971. <span class="cstat-no" title="statement not covered" >      throw new NotFoundError('音频不存在');</span>
    972. 

  972. <span class="cstat-no" title="statement not covered" >    }</span>
    973. 

  973. &nbsp;
    974. 

  974.     // 检查是否有音频URL
    975. 

  975. <span class="cstat-no" title="statement not covered" >    if (!audioRecord.audioUrl) {</span>
    976. 

  976. <span class="cstat-no" title="statement not covered" >      throw new NotFoundError('音频文件不存在');</span>
    977. 

  977. <span class="cstat-no" title="statement not covered" >    }</span>
    978. 

  978. &nbsp;
    979. 

  979.     // 返回下载信息（前端直接使用 URL 下载）
    980. 

  980. <span class="cstat-no" title="statement not covered" >    ctx.body = {</span>
    981. 

  981. <span class="cstat-no" title="statement not covered" >      code: 0,</span>
    982. 

  982. <span class="cstat-no" title="statement not covered" >      message: 'success',</span>
    983. 

  983. <span class="cstat-no" title="statement not covered" >      data: {</span>
    984. 

  984. <span class="cstat-no" title="statement not covered" >        id: audioRecord.id,</span>
    985. 

  985. <span class="cstat-no" title="statement not covered" >        title: audioRecord.title,</span>
    986. 

  986. <span class="cstat-no" title="statement not covered" >        audioUrl: audioRecord.audioUrl,</span>
    987. 

  987. <span class="cstat-no" title="statement not covered" >        duration: audioRecord.audioDuration,</span>
    988. 

  988. <span class="cstat-no" title="statement not covered" >        size: audioRecord.audioSize,</span>
    989. 

  989. <span class="cstat-no" title="statement not covered" >        downloadUrl: audioRecord.audioUrl, // 直接使用音频URL下载</span>
    990. 

  990. <span class="cstat-no" title="statement not covered" >      },</span>
    991. 

  991. <span class="cstat-no" title="statement not covered" >    };</span>
    992. 

  992. <span class="cstat-no" title="statement not covered" >  } catch (error: any) {</span>
    993. 

  993. <span class="cstat-no" title="statement not covered" >    if (error instanceof NotFoundError) {</span>
    994. 

  994. <span class="cstat-no" title="statement not covered" >      throw error;</span>
    995. 

  995. <span class="cstat-no" title="statement not covered" >    }</span>
    996. 

  996. <span class="cstat-no" title="statement not covered" >    console.error('获取下载信息失败:', error);</span>
    997. 

  997. <span class="cstat-no" title="statement not covered" >    ctx.status = 500;</span>
    998. 

  998. <span class="cstat-no" title="statement not covered" >    ctx.body = { code: 500, message: '获取下载信息失败: ' + error.message };</span>
    999. 

  999. <span class="cstat-no" title="statement not covered" >  }</span>
    1000. 

  1000. <span class="cstat-no" title="statement not covered" >});</span>
    1001. 

  1001. &nbsp;
    1002. 

  1002. // 批量下载音频（获取下载链接列表）
    1003. 

  1003. <span class="cstat-no" title="statement not covered" >router.post('/download/batch', async (ctx: Context) =&gt; {</span>
    1004. 

  1004. <span class="cstat-no" title="statement not covered" >  const { audioIds } = ctx.request.body as { audioIds: string[] };</span>
    1005. 

  1005. &nbsp;
    1006. 

  1006. <span class="cstat-no" title="statement not covered" >  if (!audioIds || audioIds.length === 0) {</span>
    1007. 

  1007. <span class="cstat-no" title="statement not covered" >    throw new BadRequestError('请选择要下载的音频');</span>
    1008. 

  1008. <span class="cstat-no" title="statement not covered" >  }</span>
    1009. 

  1009. &nbsp;
    1010. 

  1010. <span class="cstat-no" title="statement not covered" >  if (audioIds.length &gt; 50) {</span>
    1011. 

  1011. <span class="cstat-no" title="statement not covered" >    throw new BadRequestError('一次最多下载50个音频');</span>
    1012. 

  1012. <span class="cstat-no" title="statement not covered" >  }</span>
    1013. 

  1013. &nbsp;
    1014. 

  1014. <span class="cstat-no" title="statement not covered" >  try {</span>
    1015. 

  1015. <span class="cstat-no" title="statement not covered" >    const audios = await prisma.audioRecord.findMany({</span>
    1016. 

  1016. <span class="cstat-no" title="statement not covered" >      where: {</span>
    1017. 

  1017. <span class="cstat-no" title="statement not covered" >        id: {</span>
    1018. 

  1018. <span class="cstat-no" title="statement not covered" >          in: audioIds.map(id =&gt; parseInt(id)),</span>
    1019. 

  1019. <span class="cstat-no" title="statement not covered" >        },</span>
    1020. 

  1020. <span class="cstat-no" title="statement not covered" >      },</span>
    1021. 

  1021. <span class="cstat-no" title="statement not covered" >      select: {</span>
    1022. 

  1022. <span class="cstat-no" title="statement not covered" >        id: true,</span>
    1023. 

  1023. <span class="cstat-no" title="statement not covered" >        title: true,</span>
    1024. 

  1024. <span class="cstat-no" title="statement not covered" >        audioUrl: true,</span>
    1025. 

  1025. <span class="cstat-no" title="statement not covered" >        audioDuration: true,</span>
    1026. 

  1026. <span class="cstat-no" title="statement not covered" >        audioSize: true,</span>
    1027. 

  1027. <span class="cstat-no" title="statement not covered" >      },</span>
    1028. 

  1028. <span class="cstat-no" title="statement not covered" >    });</span>
    1029. 

  1029. &nbsp;
    1030. 

  1030.     // 过滤出有音频URL的记录
    1031. 

  1031. <span class="cstat-no" title="statement not covered" >    const validAudios = audios.filter(a =&gt; a.audioUrl);</span>
    1032. 

  1032. &nbsp;
    1033. 

  1033. <span class="cstat-no" title="statement not covered" >    ctx.body = {</span>
    1034. 

  1034. <span class="cstat-no" title="statement not covered" >      code: 0,</span>
    1035. 

  1035. <span class="cstat-no" title="statement not covered" >      message: 'success',</span>
    1036. 

  1036. <span class="cstat-no" title="statement not covered" >      data: {</span>
    1037. 

  1037. <span class="cstat-no" title="statement not covered" >        total: validAudios.length,</span>
    1038. 

  1038. <span class="cstat-no" title="statement not covered" >        audios: validAudios.map(a =&gt; ({</span>
    1039. 

  1039. <span class="cstat-no" title="statement not covered" >          id: a.id,</span>
    1040. 

  1040. <span class="cstat-no" title="statement not covered" >          title: a.title,</span>
    1041. 

  1041. <span class="cstat-no" title="statement not covered" >          downloadUrl: a.audioUrl,</span>
    1042. 

  1042. <span class="cstat-no" title="statement not covered" >          duration: a.audioDuration,</span>
    1043. 

  1043. <span class="cstat-no" title="statement not covered" >          size: a.audioSize,</span>
    1044. 

  1044. <span class="cstat-no" title="statement not covered" >        })),</span>
    1045. 

  1045. <span class="cstat-no" title="statement not covered" >      },</span>
    1046. 

  1046. <span class="cstat-no" title="statement not covered" >    };</span>
    1047. 

  1047. <span class="cstat-no" title="statement not covered" >  } catch (error: any) {</span>
    1048. 

  1048. <span class="cstat-no" title="statement not covered" >    console.error('批量下载失败:', error);</span>
    1049. 

  1049. <span class="cstat-no" title="statement not covered" >    ctx.body = { code: 500, message: '批量下载失败: ' + error.message };</span>
    1050. 

  1050. <span class="cstat-no" title="statement not covered" >  }</span>
    1051. 

  1051. <span class="cstat-no" title="statement not covered" >});</span>
    1052. 

  1052. &nbsp;
    1053. 

  1053. <span class="cstat-no" title="statement not covered" >export default router;</span></pre></td></tr></table></pre>
    1054. 

  1054. 

  1055.                 <div class='push'></div><!-- for sticky footer -->
    1056. 

  1056.             </div><!-- /wrapper -->
    1057. 

  1057.             <div class='footer quiet pad2 space-top1 center small'>
    1058. 

  1058.                 Code coverage generated by
    1059. 

  1059.                 <a href="https://istanbul.js.org/" target="_blank" rel="noopener noreferrer">istanbul</a>
    1060. 

  1060.                 at 2026-05-19T14:27:48.313Z
    1061. 

  1061.             </div>
    1062. 

  1062.         <script src="../../prettify.js"></script>
    1063. 

  1063.         <script>
    1064. 

  1064.             window.onload = function () {
    1065. 

  1065.                 prettyPrint();
    1066. 

  1066.             };
    1067. 

  1067.         </script>
    1068. 

  1068.         <script src="../../sorter.js"></script>
    1069. 

  1069.         <script src="../../block-navigation.js"></script>
    1070. 

  1070.     </body>
    1071. 

  1071. </html>
    1072. 

  1072.     
    1073.