import { defineConfig, loadEnv } from 'vite';
import react from '@vitejs/plugin-react';

function normalizeBasePath(value: string | undefined) {
  const raw = value?.trim();
  if (!raw || raw === '/') return '/';
  if (raw === './') return './';
  if (/^https?:\/\//.test(raw)) {
    return raw.endsWith('/') ? raw : `${raw}/`;
  }
  return `/${raw.replace(/^\/+|\/+$/g, '')}/`;
}

export default defineConfig(({ mode }) => {
  const env = loadEnv(mode, process.cwd(), '');

  return {
    base: normalizeBasePath(env.VITE_BASE_PATH),
    plugins: [react()],
  };
});