import { fileURLToPath, URL } from 'node:url'

import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import vueDevTools from 'vite-plugin-vue-devtools'


// https://vite.dev/config/
export default defineConfig(( { command } ) => {
  let branch = process.env.BRANCH || 'main'

  // 1️⃣ dev 模式：永远 /
  if (command === 'serve') {
    branch = '/'
  }else{
    branch = `/${branch}/`
  }

  return {
  base: branch,
  build: {
    sourcemap: true
  },
  plugins: [
    vue(),
    vueDevTools(),
  ],
  resolve: {
    alias: {
      '@': fileURLToPath(new URL('./src', import.meta.url))
    },
  },
}
})