const express = require('express');
const path = require('path');
const app = express();

app.use(express.static('public'));
app.use(express.json());

// Session Management für Freigabe
const sessions = new Map();

// Gesundheitscheck für APK
app.get('/api/health', (req, res) => {
  res.json({ status: 'online', timestamp: Date.now() });
});

// Session erstellen (für QR-Code)
app.post('/api/session/create', (req, res) => {
  const id = Math.random().toString(36).substring(7);
  sessions.set(id, { 
    status: 'pending', 
    created: Date.now(),
    expires: Date.now() + (30 * 60 * 1000) // 30 Minuten
  });
  res.json({ sessionId: id, qrData: `kids://auth/${id}` });
});

// Session Status prüfen
app.get('/api/session/:id', (req, res) => {
  const session = sessions.get(req.params.id);
  if (!session) return res.status(404).json({ error: 'not found' });
  if (Date.now() > session.expires) {
    sessions.delete(req.params.id);
    return res.json({ status: 'expired' });
  }
  res.json(session);
});

// Freigabe durch Eltern
app.post('/api/session/:id/approve', (req, res) => {
  const { duration = 30, jellyfinUser = 'kind-default' } = req.body;
  sessions.set(req.params.id, {
    status: 'approved',
    approvedAt: Date.now(),
    expires: Date.now() + (duration * 60000),
    jellyfinUser
  });
  res.json({ success: true });
});

// Spiele-Liste
app.get('/api/games', (req, res) => {
  res.json([
    { id: 'bubbles', name: 'Blubber-Blasen', type: 'touch', age: 2 },
    { id: 'memory', name: 'Memory', type: 'touch', age: 4 },
    { id: 'drawing', name: 'Malen', type: 'touch', age: 3 },
    { id: 'nes-mario', name: 'Super Mario', type: 'emulator', system: 'nes', age: 5 },
    { id: 'snes-mario', name: 'Super Mario World', type: 'emulator', system: 'snes', age: 5 },
    { id: 'megadrive-sonic', name: 'Sonic', type: 'emulator', system: 'megadrive', age: 5 }
  ]);
});

// Jellyfin Proxy (kindersicher)
app.get('/api/media/list', async (req, res) => {
  // Hier Jellyfin API aufrufen und filtern
  res.json([
    { id: 1, title: 'Peppa Wutz', thumb: '/covers/peppa.jpg', age: 2 },
    { id: 2, title: 'Sendung mit der Maus', thumb: '/covers/maus.jpg', age: 3 }
  ]);
});

app.listen(3000, () => console.log('Kids Game Server on :3000'));