import { NextResponse } from "next/server";
import { prisma } from "@/lib/db";
import { getSessionUser } from "@/lib/auth";
import { getSignedDownloadUrl } from "@/lib/r2";

type Props = {
  params: Promise<{ id: string }>;
};

export async function GET(_req: Request, { params }: Props) {
  const session = await getSessionUser();
  if (!session) {
    return NextResponse.json({ error: "Unauthorized" }, { status: 401 });
  }

  const { id } = await params;

  const file = await prisma.file.findFirst({
    where: { id, userId: session.userId },
  });

  if (!file) {
    return NextResponse.json({ error: "File not found" }, { status: 404 });
  }

  const url = await getSignedDownloadUrl(file.key);
  return NextResponse.json({ url, name: file.name });
}