/// <reference types="vitest" />
import { defineConfig } from 'vitest/config'
import react from '@vitejs/plugin-react'
import path from 'path'

// https://vite.dev/config/
export default defineConfig({
  plugins: [react()],
  test: {
    globals: true,
    environment: 'happy-dom',
    setupFiles: ['./src/test/setup.ts'],
    include: ['src/**/*.{test,spec}.{js,mjs,cjs,ts,mts,cts,jsx,tsx}'],
    coverage: {
      provider: 'v8',
      reporter: ['text', 'json', 'html'],
      include: ['src/lib/**/*.ts'],
    },
  },
  resolve: {
    alias: {
      "@": path.resolve(__dirname, "./src"),
    },
  },
  build: {
    // Enable code splitting and optimization
    rollupOptions: {
      output: {
        manualChunks: {
          // Split vendor libraries
          vendor: ['react', 'react-dom', '@tanstack/react-query'],
          ui: ['@radix-ui/react-dialog', '@radix-ui/react-dropdown-menu', 'lucide-react'],
          utils: ['date-fns', 'clsx', 'tailwind-merge']
        },
        // Optimize chunk naming for better caching
        chunkFileNames: 'assets/js/[name]-[hash].js',
        entryFileNames: 'assets/js/[name]-[hash].js',
        assetFileNames: 'assets/[ext]/[name]-[hash].[ext]'
      }
    },
    // Enable source maps for production debugging
    sourcemap: true,
    // Optimize bundle size
    minify: 'terser',
    // Set appropriate chunk size limit for better caching
    chunkSizeWarningLimit: 1000
  },
  // Optimize dependencies during build
  optimizeDeps: {
    include: ['react', 'react-dom', '@tanstack/react-query', 'date-fns']
  },
  // Development server optimization
  server: {
    fs: {
      // Allow serving files from project root
      allow: ['..']
    }
  },
  // Preview server optimization
  preview: {
    port: 4173,
    strictPort: true
  }
})
