Express migration (#80)

* Initial migration

* Cleanup and create migration scripts

* Introduce test suite

* Fix test issues

* Correct CORS issue and update paths

* Update README

backend/app.js

@@ -0,0 +1,167 @@
+require('dotenv').config();
+const express = require('express');
+const path = require('path');
+const cors = require('cors');
+const helmet = require('helmet');
+const compression = require('compression');
+const morgan = require('morgan');
+const session = require('express-session');
+const SequelizeStore = require('connect-session-sequelize')(session.Store);
+const { sequelize } = require('./models');
+const { initializeTelegramPolling } = require('./services/telegramInitializer');
+const TaskScheduler = require('./services/taskScheduler');
+
+const app = express();
+
+// Session store
+const sessionStore = new SequelizeStore({
+  db: sequelize,
+});
+
+// Middlewares
+app.use(helmet());
+app.use(compression());
+app.use(morgan('combined'));
+
+// CORS configuration
+const allowedOrigins = process.env.TUDUDI_ALLOWED_ORIGINS 
+  ? process.env.TUDUDI_ALLOWED_ORIGINS.split(',').map(origin => origin.trim())
+  : ['http://localhost:8080', 'http://localhost:9292', 'http://127.0.0.1:8080', 'http://127.0.0.1:9292'];
+
+app.use(cors({
+  origin: allowedOrigins,
+  credentials: true,
+  methods: ['GET', 'POST', 'PATCH', 'DELETE', 'OPTIONS'],
+  allowedHeaders: ['Authorization', 'Content-Type', 'Accept', 'X-Requested-With'],
+  exposedHeaders: ['Content-Type'],
+  maxAge: 1728000
+}));
+
+// Body parsing
+app.use(express.json({ limit: '10mb' }));
+app.use(express.urlencoded({ extended: true, limit: '10mb' }));
+
+// Session configuration
+const secureFlag = process.env.NODE_ENV === 'production' && process.env.TUDUDI_INTERNAL_SSL_ENABLED === 'true';
+app.use(session({
+  secret: process.env.TUDUDI_SESSION_SECRET || require('crypto').randomBytes(64).toString('hex'),
+  store: sessionStore,
+  resave: false,
+  saveUninitialized: false,
+  cookie: {
+    httpOnly: true,
+    secure: secureFlag,
+    maxAge: 2592000000, // 30 days
+    sameSite: secureFlag ? 'none' : 'lax'
+  }
+}));
+
+// Static files
+if (process.env.NODE_ENV === 'production') {
+  app.use(express.static(path.join(__dirname, 'dist')));
+} else {
+  app.use(express.static('public'));
+}
+
+// Serve locales 
+if (process.env.NODE_ENV === 'production') {
+  app.use('/locales', express.static(path.join(__dirname, 'dist/locales')));
+} else {
+  app.use('/locales', express.static(path.join(__dirname, '../public/locales')));
+}
+
+// Authentication middleware
+const { requireAuth } = require('./middleware/auth');
+
+// Routes
+app.use('/api', require('./routes/auth'));
+app.use('/api', requireAuth, require('./routes/tasks'));
+app.use('/api', requireAuth, require('./routes/projects'));
+app.use('/api', requireAuth, require('./routes/areas'));
+app.use('/api', requireAuth, require('./routes/notes'));
+app.use('/api', requireAuth, require('./routes/tags'));
+app.use('/api', requireAuth, require('./routes/users'));
+app.use('/api', requireAuth, require('./routes/inbox'));
+app.use('/api', requireAuth, require('./routes/url'));
+app.use('/api', requireAuth, require('./routes/telegram'));
+app.use('/api', requireAuth, require('./routes/quotes'));
+
+// Health check
+app.get('/api/health', (req, res) => {
+  res.json({ status: 'ok', timestamp: new Date().toISOString() });
+});
+
+// SPA fallback
+app.get('*', (req, res) => {
+  if (!req.path.startsWith('/api/') && !req.path.match(/\.(js|css|png|jpg|jpeg|gif|ico|svg)$/)) {
+    if (process.env.NODE_ENV === 'production') {
+      res.sendFile(path.join(__dirname, 'dist', 'index.html'));
+    } else {
+      res.sendFile(path.join(__dirname, 'public', 'index.html'));
+    }
+  } else {
+    res.status(404).json({ error: 'Not Found', message: 'The requested resource could not be found.' });
+  }
+});
+
+// Error handling
+app.use((err, req, res, next) => {
+  console.error(err.stack);
+  res.status(500).json({ error: 'Internal Server Error', message: err.message });
+});
+
+const PORT = process.env.PORT || 3002;
+
+// Initialize database and start server
+async function startServer() {
+  try {
+    // Create session store table
+    await sessionStore.sync();
+    
+    // Sync database
+    await sequelize.sync();
+    
+    // Auto-create user if not exists
+    if (process.env.TUDUDI_USER_EMAIL && process.env.TUDUDI_USER_PASSWORD) {
+      const { User } = require('./models');
+      const bcrypt = require('bcrypt');
+      
+      const [user, created] = await User.findOrCreate({
+        where: { email: process.env.TUDUDI_USER_EMAIL },
+        defaults: {
+          email: process.env.TUDUDI_USER_EMAIL,
+          password: await bcrypt.hash(process.env.TUDUDI_USER_PASSWORD, 10)
+        }
+      });
+      
+      if (created) {
+        console.log('Default user created:', user.email);
+      }
+    }
+    
+    // Initialize Telegram polling after database is ready
+    await initializeTelegramPolling();
+    
+    // Initialize task scheduler
+    const scheduler = TaskScheduler.getInstance();
+    await scheduler.initialize();
+    
+    const server = app.listen(PORT, '0.0.0.0', () => {
+      console.log(`Server running on port ${PORT}`);
+      console.log(`Server listening on http://localhost:${PORT}`);
+    });
+    
+    server.on('error', (err) => {
+      console.error('Server error:', err);
+    });
+  } catch (error) {
+    console.error('Failed to start server:', error);
+    process.exit(1);
+  }
+}
+
+if (require.main === module) {
+  startServer();
+}
+
+module.exports = app;