import { NextRequest } from 'next/server';
import { db } from '@/lib/db';
import { getAuthUser } from '@/lib/auth';
import { apiHandler, errorResponse, successResponse, paginatedResponse, getPagination } from '@/lib/api-utils';

/** GET /api/analytics/posts - Post-level analytics */
export const GET = apiHandler(async (request: NextRequest) => {
  const authUser = await getAuthUser(request);
  if (!authUser) return errorResponse('Authentication required', 401);

  const { page, limit, skip } = getPagination(request);
  const url = new URL(request.url);
  const postId = url.searchParams.get('postId');

  const where: Record<string, unknown> = {};
  if (postId) where.postId = postId;

  const [analytics, total] = await Promise.all([
    db.postAnalytics.findMany({ where, skip, take: limit, orderBy: { date: 'desc' } }),
    db.postAnalytics.count({ where }),
  ]);

  return paginatedResponse(analytics, page, limit, total);
});