feat: 将视频转写重构为纯文字异步语音识别

app/api/stt/route.ts

@@ -1,23 +1,33 @@
+import { type NextRequest, NextResponse } from "next/server";
+import { enqueueTranscription, readTranscription } from "@/lib/stt/tasks";
+import { isActive } from "@/lib/stt/types";
 export const runtime = "nodejs";
-import { NextRequest, NextResponse } from "next/server";
-import { prisma } from "@/lib/prisma";
-import type { FeedItem, FeedResponse } from "@/app/types/feed";
-import { getFileUrl } from "@/lib/minio";
-import { transcriptAweme } from ".";
-
-// Contract
-// Inputs: search params { before?: ISOString, limit?: number }
-// Output: { items: FeedItem[], nextCursor: ISOString | null }
-
+export const dynamic = "force-dynamic";
+const validId = (id: unknown): id is string =>
+  typeof id === "string" && /^[A-Za-z0-9_-]{1,128}$/.test(id);
 export async function GET(req: NextRequest) {
-  const { searchParams } = new URL(req.url);
-  const awemeId = searchParams.get("awemeId");
-  if (!awemeId) {
-    return NextResponse.json(
-      { error: "Missing awemeId parameter" },
-      { status: 400 },
-    );
+  const id = req.nextUrl.searchParams.get("awemeId");
+  if (!validId(id))
+    return NextResponse.json({ error: "需要有效的 awemeId" }, { status: 400 });
+  try {
+    const state = await readTranscription(id);
+    return state
+      ? NextResponse.json(state)
+      : NextResponse.json({ error: "视频不存在" }, { status: 404 });
+  } catch {
+    return NextResponse.json({ error: "读取转写状态失败" }, { status: 500 });
+  }
+}
+export async function POST(req: NextRequest) {
+  const body = await req.json().catch(() => null);
+  if (!validId(body?.awemeId))
+    return NextResponse.json({ error: "需要有效的 awemeId" }, { status: 400 });
+  try {
+    const state = await enqueueTranscription(body.awemeId, true);
+    return state
+      ? NextResponse.json(state, { status: isActive(state.status) ? 202 : 200 })
+      : NextResponse.json({ error: "视频不存在" }, { status: 404 });
+  } catch {
+    return NextResponse.json({ error: "转写任务入队失败" }, { status: 500 });
   }
-  const script = await transcriptAweme(awemeId);
-  return NextResponse.json(script);
 }