import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import { resolve } from 'path'
// vant插件
import Components from "unplugin-vue-components/vite";
import { VantResolver } from "unplugin-vue-components/resolvers";
// 引入vite兼容浏览器插件
import legacy from '@vitejs/plugin-legacy'

function pathResolve(dir) {
  return resolve(__dirname, '.', dir)
}

export default defineConfig({
  base: './',
  plugins: [
    vue(),
    Components({
      resolvers: [VantResolver()],
    }),
    // vite兼容低版本浏览器 如UC浏览器 内核55
    legacy({
      targets: ['chrome 50', 'ie >= 11'],
      additionalLegacyPolyfills: ['regenerator-runtime/runtime'], // regenerator-runtime/runtime   @dian/polyfill
      renderLegacyChunks: true,
      polyfills: [
        'es.symbol',
        'es.array.filter',
        'es.promise',
        'es.promise.finally',
        'es/map',
        'es/set',
        'es.array.for-each',
        'es.object.define-properties',
        'es.object.define-property',
        'es.object.get-own-property-descriptor',
        'es.object.get-own-property-descriptors',
        'es.object.keys',
        'es.object.to-string',
        'web.dom-collections.for-each',
        'esnext.global-this',
        'esnext.string.match-all',
        // // 这个无法处理
        // 'es.string.replace-all'
      ],
      // 在polyfills外可以执行
      modernPolyfills: ['es.string.replace-all']
    })
  ],
  resolve: {
    alias: {
      '@': pathResolve('src')
    },
  },
  
  server: {
    host: '0.0.0.0',
    cors: true,
    open: true,
    proxy: {
      // 跨域前缀写法 
      '/api': {
        target: 'http://192.168.99.223:3000',
        changeOrigin: true,
        rewrite: (path) => path.replace(/^\/api/, ''),
      },
    },
  },
})