import { execSync } from 'node:child_process';
import { defineConfig } from 'vite';
import react from '@vitejs/plugin-react';
import { VitePWA } from 'vite-plugin-pwa';

function getCommit(): string {
  try {
    return execSync('git rev-parse --short HEAD').toString().trim();
  } catch {
    return 'dev';
  }
}

export default defineConfig({
  define: {
    __APP_VERSION__: JSON.stringify({ commit: getCommit(), builtAt: new Date().toISOString() }),
  },
  plugins: [
    react(),
    VitePWA({
      registerType: 'autoUpdate',
      injectRegister: false,
      devOptions: {
        enabled: false,
      },
      manifest: {
        name: 'CityTracker',
        short_name: 'CityTracker',
        description: "Track cities you've visited or plan to visit on a map.",
        start_url: '/',
        scope: '/',
        display: 'standalone',
        theme_color: '#1971c2',
        background_color: '#f7f7f5',
        icons: [
          {
            src: '/pwa-192x192.png',
            sizes: '192x192',
            type: 'image/png',
          },
          {
            src: '/pwa-512x512.png',
            sizes: '512x512',
            type: 'image/png',
          },
          {
            src: '/maskable-512x512.png',
            sizes: '512x512',
            type: 'image/png',
            purpose: 'maskable',
          },
        ],
      },
      workbox: {
        // /api and /uploads are intentionally left uncached so city data and
        // photos always come from the network, never a stale service worker cache.
        runtimeCaching: [
          {
            urlPattern: /^https:\/\/[abc]\.tile\.openstreetmap\.org\/.*/,
            handler: 'CacheFirst',
            options: {
              cacheName: 'osm-tiles',
              expiration: {
                maxEntries: 500,
                maxAgeSeconds: 60 * 60 * 24 * 7,
              },
            },
          },
        ],
      },
    }),
  ],
  server: {
    port: 5173,
    proxy: {
      '/api': 'http://localhost:3000',
      '/uploads': 'http://localhost:3000',
    },
  },
  build: {
    outDir: 'dist',
  },
});