import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'
import path from 'path'

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [react({
    jsx: 'transform',
    jsxFactory: 'React.createElement',
    jsxFragment: 'React.Fragment',
  })],
  resolve: {
    alias: {
      '@': path.resolve(__dirname, './src'),
    },
  },
  server: {
    port: 3000,
    host: true, // Allow access from external devices on the same network
    proxy: {
      '/api': {
        target: 'http://localhost:5000',
        changeOrigin: true,
        secure: false,
        // Configure proxy to handle WebSocket connections if needed
        ws: true,
        // Configure proxy to handle CORS headers
        configure: (proxy, _options) => {
          proxy.on('error', (err, _req, _res) => {
            console.log('proxy error', err);
          });
          proxy.on('proxyReq', (proxyReq, req, _res) => {
            console.log('Sending Request to the Target:', req.method, req.url);
          });
          proxy.on('proxyRes', (proxyRes, req, _res) => {
            console.log('Received Response from the Target:', proxyRes.statusCode, req.url);
          });
        },
      },
      // Proxy for WebSocket connections (if needed for real-time features)
      '/ws': {
        target: 'http://localhost:5000',
        ws: true,
        changeOrigin: true,
        secure: false,
      },
    },
  },
  build: {
    outDir: 'dist',
    sourcemap: true,
    // Configure build for production
    rollupOptions: {
      output: {
        manualChunks: {
          // Create separate chunks for vendor libraries
          vendor: ['react', 'react-dom', 'react-router-dom', 'react-redux'],
        },
      },
    },
    // Ensure JSX is processed during build
    commonjsOptions: {
      include: [/node_modules/],
    },
  },
  // Define environment variables that should be exposed to the browser
  define: {
    'process.env.NODE_ENV': JSON.stringify(process.env.NODE_ENV || 'development'),
  },
})