vite.config.js

import path from 'path'
import { defineConfig } from 'vite'
import copy from 'rollup-plugin-copy'
import del from 'rollup-plugin-delete'
import minifyEs from './rollup-plugin-minifyEs'

export default defineConfig({
	base: process.env.NODE_ENV === 'production' ? './' : './src',
  build: {
    lib: {
      entry: path.resolve(__dirname, 'src/index.js'),
      name: 'dice-box',
			// format: ['es','esm'],
			fileName: (format) => ({
        es: `dice-box.es.js`,
        esm: `dice-box.es.min.js`,
      })[format]
    },
    rollupOptions: {
			preserveEntrySignatures: 'allow-extension',
      input: {
				main: path.resolve(__dirname, 'src/index.js')
			},
			output: [
				{
					format: "es",
					chunkFileNames: (chunkInfo) => `${chunkInfo.name}.js`,
					sourcemap: true,
				},
				{
					format: "esm",
					chunkFileNames: (chunkInfo) => `${chunkInfo.name}.min.js`,
					sourcemap: false,
					plugins: [
						minifyEs(),
					]
				}
			],
			plugins: [
				copy({
					targets: [
						{
							// src: path.resolve(__dirname, 'src/assets/*'),
							src: [
								path.resolve(__dirname, 'dist/assets/dice-box/*')
							],
							dest: path.resolve(__dirname, 'dist/assets')
						}
					],
					hook: 'writeBundle'
				}),
				del({ 
					targets: path.resolve(__dirname, 'dist/assets/dice-box'),
					hook: 'closeBundle'
				})
				// visualizer({
				// 	open: true,
				// 	brotliSize: true
				// })
			]
    },
  }
})