vite.config.js

import { defineConfig } from "vite";
import { sveltekit } from "@sveltejs/kit/vite";
import tailwindcss from "@tailwindcss/vite";

// @ts-expect-error process is a nodejs global
const host = process.env.TAURI_DEV_HOST;

// https://vite.dev/config/
export default defineConfig(async () => ({
  plugins: [tailwindcss(), sveltekit()],

  // Vite options tailored for Tauri development and only applied in `tauri dev` or `tauri build`
  //
  // 1. prevent Vite from obscuring rust errors
  clearScreen: false,
  // 2. tauri expects a fixed port, fail if that port is not available
  server: {
    port: 1420,
    strictPort: true,
    host: host || false,
    hmr: host
      ? {
          protocol: "ws",
          host,
          port: 1421,
        }
      : undefined,
    watch: {
      // 3. tell Vite to ignore watching `src-tauri`
      ignored: ["**/src-tauri/**"],
    },
  },
  
  // Build optimization for production
  build: {
    target: "ES2020",
    minify: "terser",
    terserOptions: {
      compress: {
        drop_console: true,
        drop_debugger: true,
      },
    },
    rollupOptions: {
      output: {
        manualChunks: (id) => {
          // Only chunk node_modules that aren't external
          if (id.includes('node_modules') && !id.includes('@tauri-apps/api')) {
            const match = id.match(/node_modules\/([^\/]+)/);
            if (match) {
              return match[1];
            }
          }
        },
      },
    },
    // Reduce chunk size warnings and optimize output
    chunkSizeWarningLimit: 1000,
    reportCompressedSize: false,
    cssCodeSplit: true,
    sourcemap: false,
  },

  test: {
    environment: "jsdom"
  }
}));