import { readFileSync } from 'node:fs';
import { svelte } from '@sveltejs/vite-plugin-svelte';
import { defineConfig } from 'vite';
import { VitePWA } from 'vite-plugin-pwa';

const { version: appVersion } = JSON.parse(readFileSync(new URL('./package.json', import.meta.url), 'utf8'));

const appVersionAsset = {
  name: 'pardis-app-version',
  generateBundle() {
    this.emitFile({
      type: 'asset',
      fileName: 'app-version.json',
      source: JSON.stringify({ version: appVersion }),
    });
  },
};

export default defineConfig({
  server: {
    host: '0.0.0.0',
    proxy: { '/api/sync': 'http://127.0.0.1:3001' },
  },
  preview: { proxy: { '/api/sync': 'http://127.0.0.1:3001' } },
  plugins: [
    appVersionAsset,
    svelte(),
    VitePWA({
      // Never `autoUpdate`: a worker swap mid-day reloads the page under the
      // user's hands. The app decides when to apply an update (see
      // src/lib/updates.svelte.js) and only offers it while no day is running.
      registerType: 'prompt',
      pwaAssets: {
        image: 'public/icon.svg',
      },
      manifest: {
        name: 'Pardis - suivi des heures',
        short_name: 'Pardis',
        description:
          "Suivi hors ligne des heures de chantier.",
        lang: 'fr',
        dir: 'ltr',
        start_url: '/',
        scope: '/',
        display: 'standalone',
        orientation: 'portrait',
        background_color: '#ffffff',
        theme_color: '#0047b3',
        categories: ['productivity', 'utilities'],
      },
      workbox: {
        // The whole app is a handful of files; precache it all so a cold start
        // offline is identical to a warm one.
        //
        // `webmanifest` is deliberately NOT in this list: the plugin injects its
        // own manifest entry, and a glob that also matches it produces two
        // precache entries for the same URL with different revisions. Workbox
        // rejects conflicting entries, the install handler throws, and nothing
        // gets cached at all — the app silently stops working offline.
        globPatterns: ['**/*.{js,css,html,svg,png,ico,ttf,otf,txt}'],
        cleanupOutdatedCaches: true,
        clientsClaim: false,
      },
    }),
  ],
  test: {
    include: ['src/**/*.test.js', 'server/**/*.test.js'],
    environment: 'node',
  },
});