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

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

// https://vite.dev/config/
export default defineConfig(({ command }) => {
  const plugins: PluginOption[] = [vue()]

  if (command === 'serve') {
    plugins.push(vueDevTools())
  }

  return {
    plugins,
    resolve: {
      alias: {
        '@': fileURLToPath(new URL('./src', import.meta.url))
      },
    },
    build: {
      lib: {
        entry: fileURLToPath(new URL('./src/index.ts', import.meta.url)),
        name: 'RenderMathProblems',
        fileName: 'render-mathproblems',
      },
      rollupOptions: {
        external: ['vue'],
        output: {
          exports: 'named',
          globals: {
            vue: 'Vue',
          },
        },
      },
    },
  }
})