import { NextResponse } from "next/server";
import { z } from "zod";
import { auth } from "@/app/(auth)/auth";
import { archiveCanvasVideo } from "@/lib/video-canvas/archive-video";

export const runtime = "nodejs";
export const maxDuration = 300;
const running = new Set<string>();
const schema = z.object({ url: z.string().url().max(12000) });
export async function POST(request: Request) {
  const session = await auth();
  if (!session?.user?.id) return NextResponse.json({ success: false, error: "未登录" }, { status: 401 });
  const parsed = schema.safeParse(await request.json().catch(() => null));
  if (!parsed.success) return NextResponse.json({ success: false, error: "视频地址无效" }, { status: 400 });
  if (running.has(session.user.id)) return NextResponse.json({ success: false, error: "视频正在保存，请稍候" }, { status: 429 });
  running.add(session.user.id);
  try {
    const url = await archiveCanvasVideo(parsed.data.url);
    return NextResponse.json({ success: true, data: { url, storageStatus: "archived", permanentVideoUrl: url } });
  } catch {
    return NextResponse.json({ success: false, error: "视频转存失败，原视频仍保留；请稍后重试保存，无需重新生成" }, { status: 502 });
  } finally { running.delete(session.user.id); }
}