import { NextResponse } from "next/server";
import { browseCategory, searchExperts } from "@/lib/experts-search";

// GET /api/experts/search?q=<text>  or  ?category=<name>
// Same-origin proxy for Minnect's PUBLIC expert list. EXPERTS ONLY: it never
// calls a user-search endpoint. Public fields only. No session needed.
// Upstream failure -> 502 { error: "experts_unavailable" }.

export const runtime = "nodejs";

export async function GET(req: Request) {
  const url = new URL(req.url);
  const q = (url.searchParams.get("q") ?? "").trim().slice(0, 80);
  const category = (url.searchParams.get("category") ?? "").trim().slice(0, 80);
  if (!q && !category) return NextResponse.json({ experts: [] });
  const result = q ? await searchExperts(q) : await browseCategory(category);
  if (!result.ok) {
    return NextResponse.json({ error: result.error }, { status: result.status });
  }
  return NextResponse.json({ experts: result.experts });
}