const express = require('express');
const router = express.Router();
const analytics = require('../services/analytics');

router.get('/summary', async (req, res) => {
  try {
    const data = await analytics.getSummary(req.db, req.query);
    res.json(data);
  } catch (err) {
    console.error('Summary error:', err);
    res.status(500).json({ error: err.message });
  }
});

router.get('/top-users', async (req, res) => {
  try {
    const limit = parseInt(req.query.limit) || 10;
    const data = await analytics.getTopUsers(req.db, req.query, limit);
    res.json(data);
  } catch (err) {
    console.error('Top users error:', err);
    res.status(500).json({ error: err.message });
  }
});

router.get('/top-models', async (req, res) => {
  try {
    const limit = parseInt(req.query.limit) || 10;
    const data = await analytics.getTopModels(req.db, req.query, limit);
    res.json(data);
  } catch (err) {
    console.error('Top models error:', err);
    res.status(500).json({ error: err.message });
  }
});

router.get('/top-agents', async (req, res) => {
  try {
    const limit = parseInt(req.query.limit) || 10;
    const data = await analytics.getTopAgents(req.db, req.query, limit);
    res.json(data);
  } catch (err) {
    console.error('Top agents error:', err);
    res.status(500).json({ error: err.message });
  }
});

router.get('/cost-breakdown', async (req, res) => {
  try {
    const data = await analytics.getCostBreakdown(req.db, req.query);
    res.json(data);
  } catch (err) {
    console.error('Cost breakdown error:', err);
    res.status(500).json({ error: err.message });
  }
});

router.get('/usage-over-time', async (req, res) => {
  try {
    const data = await analytics.getUsageOverTime(req.db, req.query);
    res.json(data);
  } catch (err) {
    console.error('Usage over time error:', err);
    res.status(500).json({ error: err.message });
  }
});

module.exports = router;