import readline from 'readline';
import { io } from 'socket.io-client';

const API_URL = process.env.API_URL || 'http://localhost:4010/api';
// slug المستأجر — «siro» هو المزروع على السيرفر (راجع لوق [Seed] عند الإقلاع).
const TENANT_ID = process.env.TENANT_ID || 'siro';

async function api(method, path, body = null, token = null) {
  const options = {
    method,
    headers: {
      'Content-Type': 'application/json',
      'x-tenant-id': TENANT_ID,
      'x-device-id': 'simulated-device-123'
    }
  };

  if (token) {
    options.headers['Authorization'] = `Bearer ${token}`;
  }

  if (body) {
    options.body = JSON.stringify(body);
  }

  const res = await fetch(`${API_URL}${path}`, options);
  const data = await res.json().catch(() => null);

  if (!res.ok) {
    console.error(`\x1b[31m[API Error] ${method} ${path} -> ${res.status}\x1b[0m`, data);
    throw new Error(`API Error: ${res.status}`);
  }
  return data;
}

async function run() {
  console.log('\n==========================================');
  console.log('🚀 Tripz Backend Automated E2E Simulation');
  console.log('==========================================\n');

  // 1. Authenticate Demo Driver
  const driverPhone = '+962790000001';
  console.log(`[Driver] Authenticating Demo Driver (${driverPhone})...`);
  await api('POST', '/auth/send-otp', { phone: driverPhone });
  const driverAuth = await api('POST', '/auth/verify-otp', { phone: driverPhone, code: '1234' });
  const driverToken = driverAuth.access_token;
  console.log('\x1b[32m[Driver] Authenticated successfully!\x1b[0m\n');

  // 2. Authenticate Demo Rider
  const riderPhone = '+962790000002';
  console.log(`[Rider] Authenticating Demo Rider (${riderPhone})...`);
  await api('POST', '/auth/send-otp', { phone: riderPhone });
  const riderAuth = await api('POST', '/auth/verify-otp', { phone: riderPhone, code: '1234' });
  const riderToken = riderAuth.access_token;
  console.log('\x1b[32m[Rider] Authenticated successfully!\x1b[0m\n');

  // 3. Setup Driver Profile & Go Online
  console.log(`[Driver] Creating Driver profile...`);
  await api('POST', '/drivers/apply', { service_class: 'economy', vehicle_make: 'Toyota', vehicle_model: 'Prius', vehicle_plate: '12-3456' }, driverToken);
  
  console.log(`[Driver] Going Online...`);
  await api('PATCH', '/drivers/status', { online: true }, driverToken);
  console.log('\x1b[32m[Driver] Profile created and is now ONLINE.\x1b[0m\n');

  // 4. Connect WebSockets
  console.log(`[Sockets] Connecting Rider and Driver via WebSockets...`);
  const WS_URL = API_URL.replace('/api', '');
  const driverSocket = io(WS_URL, { extraHeaders: { Authorization: `Bearer ${driverToken}` } });
  const riderSocket = io(WS_URL, { extraHeaders: { Authorization: `Bearer ${riderToken}` } });

  let tripId = null;

  driverSocket.on('connect', () => console.log('\x1b[36m[Driver WS] Connected to Gateway\x1b[0m'));
  riderSocket.on('connect', () => console.log('\x1b[36m[Rider WS] Connected to Gateway\x1b[0m'));

  driverSocket.on('trip:dispatch', async (data) => {
    console.log(`\n\x1b[35m[Driver WS] 🔔 RECEIVED DISPATCH for Trip ${data.id}!\x1b[0m`);
    tripId = data.id;

    console.log(`[Driver] Accepting Trip...`);
    await api('POST', `/trips/${tripId}/accept`, null, driverToken);
    console.log(`\x1b[32m[Driver] Trip Accepted successfully!\x1b[0m`);
  });

  riderSocket.on('trip:updated', (data) => {
    console.log(`\x1b[33m[Rider WS] Trip status updated: ${data.status}\x1b[0m`);
  });

  await new Promise(r => setTimeout(r, 2000));

  // 5. Driver Location Pings
  let driverLat = 32.0645; // Zarqa Coordinates
  let driverLng = 36.0827;

  const locationInterval = setInterval(() => {
    // Driver moves slightly
    driverLat += 0.0001;
    driverSocket.emit('driver:location', { lat: driverLat, lng: driverLng, speed: 40, heading: 90 });
    console.log(`[Driver WS] 📍 Location ping: ${driverLat.toFixed(5)}, ${driverLng.toFixed(5)}`);
  }, 3000);

  // 6. Rider Requests Trip
  console.log(`\n[Rider] Requesting Trip from Zarqa...`);
  const tripRequest = await api('POST', '/trips', {
    city: 'amman',
    service_class: 'economy',
    origin: { lat: 32.0650, lng: 36.0830 }, // Zarqa origin
    destination: { lat: 32.0700, lng: 36.0900 }
  }, riderToken);

  console.log(`\x1b[32m[Rider] Trip created: ${tripRequest.trip.id}\x1b[0m`);

  // 7. Simulate Trip Flow (Wait 10 seconds per state)
  await new Promise(r => setTimeout(r, 10000));
  
  if (tripId) {
    console.log(`\n[Driver] Arriving at pickup...`);
    await api('PATCH', `/trips/${tripId}/status`, { status: 'driver_arrived' }, driverToken);

    await new Promise(r => setTimeout(r, 5000));

    console.log(`\n[Driver] Starting Trip...`);
    await api('PATCH', `/trips/${tripId}/status`, { status: 'in_progress' }, driverToken);

    await new Promise(r => setTimeout(r, 5000));

    console.log(`\n[Driver] Completing Trip...`);
    await api('PATCH', `/trips/${tripId}/status`, { status: 'completed' }, driverToken);

    console.log(`\n\x1b[32m🎉 E2E Simulation Completed Successfully!\x1b[0m\n`);
  } else {
    console.log(`\n\x1b[31mFailed to receive dispatch!\x1b[0m\n`);
  }

  clearInterval(locationInterval);
  driverSocket.disconnect();
  riderSocket.disconnect();
  process.exit(0);
}

run().catch(console.error);