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

// Optimized Vite Configuration with PWA Support
export default defineConfig({
  plugins: [
    react(),
    VitePWA({
      registerType: 'prompt',
      includeAssets: ['favicon.svg', 'robots.txt', 'site.webmanifest'],
      manifest: {
        name: 'Miracles in Motion',
        short_name: 'MiM',
        description: 'A 501(c)(3) nonprofit providing students with essential support',
        theme_color: '#7c3aed',
        background_color: '#ffffff',
        display: 'standalone',
        scope: '/',
        start_url: '/',
        icons: [
          {
            src: '/favicon.svg',
            sizes: 'any',
            type: 'image/svg+xml',
            purpose: 'any maskable'
          }
        ]
      },
      workbox: {
        globPatterns: ['**/*.{js,css,html,ico,png,svg,webp}'],
        runtimeCaching: [
          {
            urlPattern: /^https:\/\/fonts\.googleapis\.com\/.*/i,
            handler: 'CacheFirst',
            options: {
              cacheName: 'google-fonts-cache',
              expiration: {
                maxEntries: 10,
                maxAgeSeconds: 60 * 60 * 24 * 365 // 1 year
              }
            }
          },
          {
            urlPattern: /\.(png|jpg|jpeg|svg|gif|webp)$/,
            handler: 'CacheFirst',
            options: {
              cacheName: 'images-cache',
              expiration: {
                maxEntries: 50,
                maxAgeSeconds: 60 * 60 * 24 * 30 // 30 days
              }
            }
          }
        ]
      },
      devOptions: {
        enabled: true
      }
    })
  ],
  resolve: {
    alias: {
      '@': resolve(__dirname, './src'),
    },
  },
  server: {
    port: 3000,
    open: true,
  },
  build: {
    outDir: 'dist',
    sourcemap: true,
    rollupOptions: {
      output: {
        manualChunks: {
          // Core React libraries
          vendor: ['react', 'react-dom'],
          
          // UI and animations  
          ui: ['framer-motion', 'lucide-react'],
          
          // AI libraries (browser-compatible)
          ai: ['@tensorflow/tfjs'],
          
          // Utilities and i18n
          utils: ['date-fns', 'react-helmet-async', 'i18next', 'react-i18next'],
          
          // Stripe and payment
          payments: ['@stripe/stripe-js', '@stripe/react-stripe-js']
        },
        chunkFileNames: 'js/[name]-[hash].js'
      }
    },
    // Enable compression
    minify: 'terser',
    terserOptions: {
      compress: {
        drop_console: true,
        drop_debugger: true,
      },
    },
    // Optimize chunks
    chunkSizeWarningLimit: 500,
  },
})