import { defineConfig } from 'vite';
import { svelte } from '@sveltejs/vite-plugin-svelte';

const host = process.env.TAURI_DEV_HOST;

// https://vitejs.dev/config/
export default defineConfig(async () => ({
  plugins: [svelte()],

  // Tauri expects a fixed port and fails if it is not available.
  clearScreen: false,
  server: {
    port: 1420,
    strictPort: true,
    host: host || false,
    hmr: host
      ? {
          protocol: 'ws',
          host,
          port: 1421,
        }
      : undefined,
    watch: {
      // Don't watch the Rust backend; tauri handles that.
      ignored: ['**/src-tauri/**'],
    },
  },

  // Produce smaller, debuggable bundles depending on the Tauri build profile.
  envPrefix: ['VITE_', 'TAURI_'],
  build: {
    target: process.env.TAURI_ENV_PLATFORM === 'windows' ? 'chrome105' : 'safari13',
    minify: !process.env.TAURI_ENV_DEBUG ? 'esbuild' : false,
    sourcemap: !!process.env.TAURI_ENV_DEBUG,
  },
}));