import { NextResponse } from "next/server";
import type { NextRequest } from "next/server";
import { getSessionClientId } from "@/lib/auth";
import { isAdminSession } from "@/lib/adminAuth";
import { updateBannerSettingsAction } from "@/lib/actions/admin";
import { corsHeaders, corsPreflight } from "@/lib/teamApiCors";

export async function OPTIONS(request: NextRequest) {
  return corsPreflight(request);
}

export async function POST(request: NextRequest) {
  const headers = corsHeaders(request);
  const clientId = await getSessionClientId();
  if (!clientId || !(await isAdminSession())) {
    return NextResponse.json({ error: "Nicht angemeldet." }, { status: 401, headers });
  }
  const body = await request.json().catch(() => null);
  const formData = new FormData();
  formData.set("text", typeof body?.text === "string" ? body.text : "");
  // Immer mitschicken (auch unverändert) — die Aktion überschreibt das ganze
  // bannerSettings-Objekt, die App bearbeitet nur die deutsche Fassung.
  formData.set("textEn", typeof body?.textEn === "string" ? body.textEn : "");
  if (body?.enabled) formData.set("enabled", "on");

  const result = await updateBannerSettingsAction({}, formData);
  if (result.error) return NextResponse.json({ error: result.error }, { status: 400, headers });
  return NextResponse.json({ ok: true }, { headers });
}