import { NextRequest, NextResponse } from "next/server";
import { auth } from "@/auth";
import { db } from "@/lib/db";
import { generateHetznerDownloadUrl } from "@/lib/storage";

/** GET /api/shots/[shotId]/highres/download — returns a short-lived presigned download URL */
export async function GET(
  req: NextRequest,
  { params }: { params: Promise<{ shotId: string }> }
) {
  const session = await auth();
  if (!session?.user) {
    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
  }

  const { shotId } = await params;

  const shot = await db.shot.findUnique({
    where: { id: shotId },
    select: { highResKey: true, highResFilename: true },
  });

  if (!shot?.highResKey || !shot?.highResFilename) {
    return NextResponse.json({ error: "No high-res file available" }, { status: 404 });
  }

  const url = await generateHetznerDownloadUrl(shot.highResKey, shot.highResFilename);
  return NextResponse.json({ url });
}