import { NextRequest, NextResponse } from "next/server";
import { backendFetch, readBackendError } from "@/lib/backend";

export const runtime = "nodejs";

export async function POST(request: NextRequest, context: { params: Promise<{ conversationId: string }> }) {
  const { conversationId } = await context.params;
  const body = await request.formData();
  const response = await backendFetch(`/v1/conversations/${encodeURIComponent(conversationId)}/attachments`, { method: "POST", body });
  if (!response.ok) return NextResponse.json({ error: await readBackendError(response) }, { status: response.status });
  return NextResponse.json(await response.json());
}