优化docker

app/api/tts-preview/route.ts

@@ -1,8 +1,8 @@
 import { existsSync, mkdirSync } from "node:fs";
 import { writeFile } from "node:fs/promises";
-import path from "node:path";
 import { NextRequest, NextResponse } from "next/server";
 import { EdgeTTS } from "edge-tts-universal";
+import { getAudioFilePath, getAudioPublicPath } from "@/lib/audio";
 
 export const runtime = "nodejs";
 export const dynamic = "force-dynamic";
@@ -14,14 +14,14 @@ export async function POST(request: NextRequest) {
     const rate = String(body.rate ?? "-10%");
     const text = String(body.text ?? "Hello, welcome to English PK.");
 
-    const audioDirectory = path.join(process.cwd(), "public", "audio", "preview");
+    const audioDirectory = getAudioFilePath("preview");
     if (!existsSync(audioDirectory)) {
       mkdirSync(audioDirectory, { recursive: true });
     }
 
     const fileName = `tts-preview-${Date.now()}.mp3`;
-    const filePath = path.join(audioDirectory, fileName);
-    const publicPath = `/audio/preview/${fileName}`;
+    const filePath = getAudioFilePath("preview", fileName);
+    const publicPath = getAudioPublicPath(`preview/${fileName}`);
 
     const tts = new EdgeTTS(text, voice, { rate });
     const result = await tts.synthesize();

app/api/words/[id]/generate-audio/route.ts

@@ -1,8 +1,8 @@
 import { existsSync, mkdirSync } from "node:fs";
 import { writeFile } from "node:fs/promises";
-import path from "node:path";
 import { NextRequest, NextResponse } from "next/server";
 import { EdgeTTS } from "edge-tts-universal";
+import { getAudioDirectory, getAudioFilePath, getAudioPublicPath } from "@/lib/audio";
 import { findWord, getSettings, updateWordAudio } from "@/lib/db";
 
 export const runtime = "nodejs";
@@ -22,15 +22,15 @@ export async function POST(_request: NextRequest, context: RouteContext) {
       return NextResponse.json({ message: "词库不存在" }, { status: 404 });
     }
 
-    const audioDirectory = path.join(process.cwd(), "public", "audio");
+    const audioDirectory = getAudioDirectory();
     if (!existsSync(audioDirectory)) {
       mkdirSync(audioDirectory, { recursive: true });
     }
 
     const safeEnglish = word.english.toLowerCase().replace(/[^a-z0-9]+/g, "-").replace(/(^-|-$)/g, "");
     const fileName = `${word.id}-${safeEnglish || "word"}.mp3`;
-    const filePath = path.join(audioDirectory, fileName);
-    const publicPath = `/audio/${fileName}`;
+    const filePath = getAudioFilePath(fileName);
+    const publicPath = getAudioPublicPath(fileName);
 
     const settings = getSettings();
     const tts = new EdgeTTS(word.english, settings.ttsVoice, {

app/audio/[...path]/route.ts

@@ -0,0 +1,38 @@
+import { stat, readFile } from "node:fs/promises";
+import path from "node:path";
+import { NextRequest, NextResponse } from "next/server";
+import { resolveAudioFilePath } from "@/lib/audio";
+
+export const runtime = "nodejs";
+export const dynamic = "force-dynamic";
+
+type RouteContext = {
+  params: Promise<{ path: string[] }>;
+};
+
+export async function GET(_request: NextRequest, context: RouteContext) {
+  const { path: audioPath } = await context.params;
+  const filePath = resolveAudioFilePath(audioPath);
+
+  if (!filePath || path.extname(filePath).toLowerCase() !== ".mp3") {
+    return new NextResponse("Not found", { status: 404 });
+  }
+
+  try {
+    const fileStat = await stat(filePath);
+    if (!fileStat.isFile()) {
+      return new NextResponse("Not found", { status: 404 });
+    }
+
+    const file = await readFile(filePath);
+    return new NextResponse(new Uint8Array(file), {
+      headers: {
+        "Content-Type": "audio/mpeg",
+        "Content-Length": String(fileStat.size),
+        "Cache-Control": "public, max-age=31536000, immutable",
+      },
+    });
+  } catch {
+    return new NextResponse("Not found", { status: 404 });
+  }
+}