enterprise-analytics-dashboard/vite.config.ts at main · AbhishekChamp/enterprise-analytics-dashboard · GitHub

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import { defineConfig } from 'vite'
import react from '@vitejs/plugin-react'
import { TanStackRouterVite } from '@tanstack/router-plugin/vite'
import tailwindcss from '@tailwindcss/vite'
import path from 'path'

export default defineConfig({
  plugins: [
    TanStackRouterVite({ autoCodeSplitting: true }),
    tailwindcss(),
    react()
  ],
  resolve: {
    alias: {
      '@': path.resolve(__dirname, './src'),
    },
  },
  build: {
    target: 'es2020',
    minify: 'terser',
    cssMinify: true,
    rollupOptions: {
      output: {
        manualChunks: (id) => {
          // Group heavy/shared node_modules into cacheable chunks.
          // Unmatched node_modules are left to Rollup's default splitter.
          if (id.includes('node_modules')) {
            if (id.includes('/react/') || id.includes('/react-dom/') || id.includes('/scheduler/') || id.includes('/use-sync-external-store/')) {
              return 'vendor';
            }
            if (id.includes('/@tanstack/react-router/')) {
              return 'router';
            }
            if (id.includes('/@tanstack/react-query/')) {
              return 'query';
            }
            if (id.includes('/recharts/') || id.includes('/d3-')) {
              return 'charts';
            }
            if (id.includes('/lucide-react/')) {
              return 'icons';
            }
            if (id.includes('/jspdf/') || id.includes('/jspdf-autotable/') || id.includes('/dompurify/')) {
              return 'pdf';
            }
            if (id.includes('/html2canvas/')) {
              return 'html2canvas';
            }
            if (id.includes('date-fns')) {
              return 'date';
            }
            if (id.includes('zustand')) {
              return 'state';
            }
            if (id.includes('react-hot-toast')) {
              return 'toast';
            }
          }
        },
        // Ensure consistent chunk naming for better caching
        entryFileNames: 'assets/[name]-[hash].js',
        chunkFileNames: 'assets/[name]-[hash].js',
        assetFileNames: 'assets/[name]-[hash][extname]',
      },
    },
    chunkSizeWarningLimit: 500,
    sourcemap: false,
    // Enable CSS code splitting
    cssCodeSplit: true,
    // Report bundle size
    reportCompressedSize: true,
  },
  optimizeDeps: {
    include: [
      'react',
      'react-dom',
      '@tanstack/react-router',
      'recharts',
      '@tanstack/react-query',
      'lucide-react',
      'zustand',
      'date-fns',
    ],
  },
  // Performance optimizations for Netlify
  server: {
    headers: {
      'Cache-Control': 'no-cache',
    },
  },
  preview: {
    headers: {
      'Cache-Control': 'no-cache',
    },
  },
})