index.js

const express = require('express');
const cors = require('cors');
const swaggerUi = require('swagger-ui-express');
const swaggerDefinition = require('./src/config/swagger');
const errorHandler = require('./src/middleware/errorHandler');

// Load environment variables
require('dotenv').config();

// Initialize database
require('./src/config/database');

// Import routes
const userRoutes = require('./src/routes/userRoutes');
const taskRoutes = require('./src/routes/taskRoutes');

// Initialize Express app
const app = express();

// Middleware
app.use(cors());
app.use(express.json());
app.use(express.urlencoded({ extended: true }));

// API documentation
app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(swaggerDefinition));

// Routes
app.use('/api/users', userRoutes);
app.use('/api/tasks', taskRoutes);

// Default route
app.get('/', (req, res) => {
  res.json({
    message: 'Welcome to Task Manager API',
    documentation: '/api-docs'
  });
});

// 404 handler
app.use((req, res) => {
  res.status(404).json({ error: 'Route not found' });
});

// Error handler
app.use(errorHandler);

// Start server
const PORT = process.env.PORT || 3000;
app.listen(PORT, () => {
  console.log(`Server running on port ${PORT}`);
  console.log(`API documentation available at http://localhost:${PORT}/api-docs`);
});