import { defineConfig } from "vite";
import react from "@vitejs/plugin-react";

// On mobile, the dev server has to be reachable from the phone/emulator rather
// than only from localhost. `tauri android dev` sets TAURI_DEV_HOST to the
// address the device should dial; when it's absent (desktop) we keep the
// localhost-only default.
const devHost = process.env.TAURI_DEV_HOST;

// Vite config tuned for Tauri: fixed port, no clearing the terminal Tauri owns.
export default defineConfig({
  plugins: [react()],
  clearScreen: false,
  server: {
    port: 1420,
    strictPort: true,
    host: devHost || false,
    // HMR must also point at the reachable address, or the device loads the app
    // but can never connect back for updates.
    hmr: devHost ? { protocol: "ws", host: devHost, port: 1421 } : undefined,
    watch: {
      // Don't watch the Rust side; Tauri handles that.
      ignored: ["**/src-tauri/**"],
    },
  },
});