import { resolve } from 'node:path'

import viteCompression from 'vite-plugin-compression'
import { defineConfig, loadEnv, splitVendorChunkPlugin } from 'vite'
import vue2 from '@vitejs/plugin-vue2'
import { ViteEjsPlugin } from 'vite-plugin-ejs'
import { viteExternalsPlugin } from 'vite-plugin-externals'
import { visualizer } from 'rollup-plugin-visualizer'
import eslintPlugin from '@nabla/vite-plugin-eslint'
import cssInjectedByJsPlugin from 'vite-plugin-css-injected-by-js'

function getExternals(isDev) {
  if (isDev) {
    // serve
    return {}
  }
  // build
  return {
    vue: 'Vue',
    // axios: 'axios',
  }
}

export default defineConfig(({ mode, command }) => {
  const env = loadEnv(mode, process.cwd())
  return {
    base: env.VITE_APP_BASE_PUBLIC,
    build: {
      sourcemap: true,
      emptyOutDir: true,
      lib: {
        entry: './src/entry.js', // 入口文件
        name: 'leaveSourceVue', // 库的全局变量名
        fileName: 'leave-source-vue' // 输出的文件名
      },
      rollupOptions: {
        // 确保外部化处理 Vue，避免将 Vue等 打包进库
        external: ['vue', 'vuex', 'vue-router', 'element-ui', 'vant'],
        output: {
          globals: {
            vue: 'Vue'
          }
        }
      },
      target: 'es2015' // 指定目标语法版本
    },
    plugins: [
      splitVendorChunkPlugin(),
      vue2(),
      ViteEjsPlugin({
        assets: {
          version: Date.now()
        }
      }),
      eslintPlugin(),
      // 不打包的库（外部需要通过cdn引入）
      viteExternalsPlugin(getExternals(command)),
      viteCompression({
        threshold: 1024
      }),
      visualizer(),
      cssInjectedByJsPlugin()
    ],
    resolve: {
      alias: [
        {
          find: /^~/,
          replacement: ''
        },
        {
          find: '@',
          replacement: resolve(__dirname, 'src')
        }
      ],
      extensions: ['.mjs', '.js', '.ts', '.jsx', '.tsx', '.json', '.vue']
    },
    server: {
      host: '0.0.0.0',
      proxy: {
        '/jyapi': {
          target: 'https://jybx-webtest.jydev.jianyu360.com',
          changeOrigin: true,
          rewrite: path => path.replace(/^\/jyapi/, '')
        },
        '/api': {
          target: 'https://jybx-webtest.jydev.jianyu360.com',
          changeOrigin: true,
          rewrite: path => path.replace(/^\/api/, '')
        }
      }
    }
  }
})