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';

const rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout
});

const ask = (query) => new Promise((resolve) => rl.question(query, resolve));

// --- API Helpers ---
async function api(method, path, body = null, token = null) {
  const headers = {
    'Content-Type': 'application/json',
    'x-tenant-id': TENANT_ID,
    'x-device-id': 'simulated-device-123'
  };
  if (token) headers['Authorization'] = `Bearer ${token}`;

  const options = { method, headers };
  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;
}

// --- Main Simulation ---
async function run() {
  console.log('\n\x1b[36m==========================================');
  console.log('🚀 Tripz Backend Live Simulation Engine');
  console.log('==========================================\x1b[0m\n');

  // 1. Authentication
  const driverPhone = await ask('📞 Enter Driver Phone Number (e.g. +962791234567): ');
  console.log(`[Driver] Requesting OTP for ${driverPhone}...`);
  await api('POST', '/auth/send-otp', { phone: driverPhone });
  
  const driverOtp = await ask(`🔑 Enter OTP received by Driver ${driverPhone}: `);
  const driverAuth = await api('POST', '/auth/verify-otp', { phone: driverPhone, code: driverOtp });
  const driverToken = driverAuth.access_token;
  console.log('\x1b[32m[Driver] Authenticated successfully!\x1b[0m');

  const riderPhone = await ask('\n📞 Enter Rider Phone Number (e.g. +962781234567): ');
  console.log(`[Rider] Requesting OTP for ${riderPhone}...`);
  await api('POST', '/auth/send-otp', { phone: riderPhone });
  
  const riderOtp = await ask(`🔑 Enter OTP received by Rider ${riderPhone}: `);
  const riderAuth = await api('POST', '/auth/verify-otp', { phone: riderPhone, code: riderOtp });
  const riderToken = riderAuth.access_token;
  console.log('\x1b[32m[Rider] Authenticated successfully!\x1b[0m\n');

  // 2. 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');

  // 3. 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 ${tripId}...`);
    await api('POST', `/trips/${tripId}/accept`, null, driverToken);
    console.log('\x1b[32m[Driver] Trip Accepted!\x1b[0m');

    // Join Trip Room
    driverSocket.emit('trip:join', { tripId });
    riderSocket.emit('trip:join', { tripId });
    console.log(`[Sockets] Both joined trip room: ${tripId}\n`);
  });

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

  // 4. 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);

  // Wait a few seconds before Rider requests
  await new Promise(r => setTimeout(r, 5000));

  // 5. 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.id}\x1b[0m`);

  // 6. 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);

    console.log(`\n[System] Simulating 1-minute ride to destination...`);
    // Simulate 30 seconds wait
    await new Promise(r => setTimeout(r, 30000));
    console.log(`[System] Halfway there...`);
    await new Promise(r => setTimeout(r, 30000));

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

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

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

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

  // Cleanup
  clearInterval(locationInterval);
  driverSocket.disconnect();
  riderSocket.disconnect();
  rl.close();
}

run().catch(err => {
  console.error('\x1b[31mSimulation Failed!\x1b[0m', err);
  process.exit(1);
});