import { usePrisma } from "../../utils/prisma";

/** GET /api/admin/stats — Übersicht-Statistiken fürs Dashboard */
export default defineEventHandler(async (event) => {
  const config = useRuntimeConfig();
  const secret = getHeader(event, "x-admin-secret");
  if (!config.adminSecret || secret !== config.adminSecret) {
    throw createError({ statusCode: 401, message: "Unauthorized" });
  }

  const db = usePrisma();
  const now = new Date();
  const last7d = new Date(now.getTime() - 7 * 24 * 60 * 60 * 1000);
  const last30d = new Date(now.getTime() - 30 * 24 * 60 * 60 * 1000);

  const [
    totalUsers,
    newUsersWeek,
    totalPosts,
    newPostsWeek,
    pendingDomains,
    approvedDomains,
    pendingFeedback,
    totalFeedback,
    lyraPosts,
  ] = await Promise.all([
    db.profile.count(),
    db.profile.count({ where: { createdAt: { gte: last7d } } }),
    db.communityPost.count({ where: { isModerated: false } }),
    db.communityPost.count({
      where: { isModerated: false, createdAt: { gte: last7d } },
    }),
    db.domainSubmission.count({ where: { status: "pending" } }),
    db.domainSubmission.count({ where: { status: "approved" } }),
    db.feedbackItem.count({ where: { status: "PENDING" } }).catch(() => 0),
    db.feedbackItem.count().catch(() => 0),
    db.communityPost
      .count({
        where: {
          userId: config.lyraBotUserId || undefined,
          createdAt: { gte: last30d },
        },
      })
      .catch(() => 0),
  ]);

  return {
    users: { total: totalUsers, newThisWeek: newUsersWeek },
    posts: { total: totalPosts, newThisWeek: newPostsWeek },
    domains: { pending: pendingDomains, approved: approvedDomains },
    feedback: { pending: pendingFeedback, total: totalFeedback },
    lyra: { postsLast30d: lyraPosts },
  };
});