app.js

const express = require('express');
const cors = require('cors');
const swaggerUi = require('swagger-ui-express');
const swaggerSpec = require('./docs/swaggerDef');
const { errorHandler } = require('./middleware/errorHandler');

const app = express();

// Middleware
app.use(cors());
app.use(express.json());

// Swagger Documentation
app.use('/api/docs', swaggerUi.serve, swaggerUi.setup(swaggerSpec));

// Root Endpoint
app.get('/', (req, res) => {
  res.send('Welcome to the InvoiceLite API');
});

// Routes
app.use('/api/auth', require('./routes/authRoutes'));
app.use('/api/clients', require('./routes/clientRoutes'));
app.use('/api/invoices', require('./routes/invoiceRoutes'));

// Global Error Handler
app.use(errorHandler);

module.exports = app;