import { NextResponse } from "next/server";
import type { NextRequest } from "next/server";
import { getSessionClientId } from "@/lib/auth";
import { isAdminSession } from "@/lib/adminAuth";
import { updateIntranetArticleAction, moveIntranetArticleAction, deleteIntranetArticleAction } from "@/lib/actions/intranet";
import { corsHeaders, corsPreflight } from "@/lib/teamApiCors";

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

// PATCH nimmt entweder {direction} (Reorder) oder die vollen Bearbeiten-Felder an.
export async function PATCH(request: NextRequest, { params }: { params: Promise<{ articleId: string }> }) {
  const headers = corsHeaders(request);
  const clientId = await getSessionClientId();
  if (!clientId || !(await isAdminSession())) {
    return NextResponse.json({ error: "Nicht angemeldet." }, { status: 401, headers });
  }
  const { articleId } = await params;
  const body = await request.json().catch(() => null);

  if (body?.direction === "up" || body?.direction === "down") {
    await moveIntranetArticleAction(articleId, body.direction);
    return NextResponse.json({ ok: true }, { headers });
  }

  const formData = new FormData();
  formData.set("title", typeof body?.title === "string" ? body.title : "");
  formData.set("content", typeof body?.content === "string" ? body.content : "");
  formData.set("category", typeof body?.category === "string" ? body.category : "");
  for (const id of Array.isArray(body?.departmentIds) ? body.departmentIds : []) formData.append("departmentIds", String(id));
  if (body?.pinned) formData.set("pinned", "on");
  await updateIntranetArticleAction(articleId, formData);
  return NextResponse.json({ ok: true }, { headers });
}

export async function DELETE(request: NextRequest, { params }: { params: Promise<{ articleId: string }> }) {
  const headers = corsHeaders(request);
  const clientId = await getSessionClientId();
  if (!clientId || !(await isAdminSession())) {
    return NextResponse.json({ error: "Nicht angemeldet." }, { status: 401, headers });
  }
  const { articleId } = await params;
  await deleteIntranetArticleAction(articleId);
  return NextResponse.json({ ok: true }, { headers });
}