import { sveltekit } from '@sveltejs/kit/vite';
import { defineConfig } from 'vite';
import { VitePWA } from 'vite-plugin-pwa';
import tailwindcss from '@tailwindcss/vite';

export default defineConfig({
  server: {
    proxy: {
      '/api': {
        target: process.env.VITE_API_URL ?? 'http://localhost:8000',
        changeOrigin: true
      }
    }
  },
  plugins: [
    tailwindcss(),
    sveltekit(),
    VitePWA({
      registerType: 'autoUpdate',
      manifestFilename: 'manifest.json',
      includeAssets: ['icons/icon.svg', 'icons/apple-touch-icon-180x180.png'],
      devOptions: { enabled: true },
      manifest: {
        name: 'Fooder',
        short_name: 'Fooder',
        description: 'Simple calorie and macro tracker',
        theme_color: '#16a34a',
        background_color: '#09090b',
        display: 'standalone',
        orientation: 'portrait',
        start_url: '/diary/today',
        scope: '/',
        id: '/',
        categories: ['health', 'food'],
        icons: [
          { src: '/icons/pwa-64x64.png', sizes: '64x64', type: 'image/png' },
          { src: '/icons/pwa-192x192.png', sizes: '192x192', type: 'image/png' },
          { src: '/icons/pwa-512x512.png', sizes: '512x512', type: 'image/png' },
          { src: '/icons/maskable-icon-512x512.png', sizes: '512x512', type: 'image/png', purpose: 'maskable' }
        ]
      },
      workbox: {
        navigateFallback: '/index.html',
        globPatterns: ['**/*.{js,css,html,ico,png,svg,woff2}'],
        runtimeCaching: [
          {
            // Cache same-origin API responses (NetworkFirst: try network, fall back to cache)
            urlPattern: ({ url }) => url.pathname.startsWith('/api/'),
            handler: 'NetworkFirst',
            options: {
              cacheName: 'api-cache',
              networkTimeoutSeconds: 5,
              cacheableResponse: { statuses: [200] }
            }
          }
        ]
      }
    })
  ]
});