import { Router } from 'express';
import {
  getOverview, getPageviewsByDay, getTopUsers,
  getTopRecipes, getRecentActivity, getEvents
} from '../analytics-db.js';
import { getUserById } from '../db.js';

const router = Router();

router.get('/overview', (req, res) => {
  res.json(getOverview());
});

router.get('/pageviews', (req, res) => {
  const { from, to } = req.query;
  res.json(getPageviewsByDay(from, to));
});

router.get('/users', (req, res) => {
  const topUsers = getTopUsers(20);
  const enriched = topUsers.map(u => {
    const user = getUserById(u.user_id);
    return { ...u, username: user ? user.username : `User #${u.user_id}` };
  });
  res.json(enriched);
});

router.get('/recipes', (req, res) => {
  res.json(getTopRecipes(20));
});

router.get('/activity', (req, res) => {
  const { user_id, limit } = req.query;
  const events = getEvents({ user_id, limit: limit ? Number(limit) : 50 });
  const enriched = events.map(e => {
    const user = e.user_id ? getUserById(e.user_id) : null;
    return { ...e, username: user ? user.username : null };
  });
  res.json(enriched);
});

export default router;