import {
  defineConfig
} from 'vite'
import vue from '@vitejs/plugin-vue'
import viteCompression from 'vite-plugin-compression'
import eslint from 'vite-plugin-eslint'
import path from 'path'
import fs from 'fs'
const sizeOf = require('image-size')

// 获取CAD图片大小
const getImgSize = function () {
  try {
    const divs = path.resolve('./public/CAD_1')
    const fileName = fs.readdirSync(divs)
    if (!fileName || !fileName.length) return {}
    const max = Math.max(...fileName)
    const filePath = `${divs}/${max}`
    const filesPath = fs.readdirSync(filePath)
    const maxName = []
    for (let k = 0; k < filesPath.length; k++) {
      const el = filesPath[k]
      const id = el.indexOf('_')
      const num = el.substring(0, id)
      maxName.push({
        num,
        name: el
      })
    }
    maxName.sort((a, b) => +b.num - +a.num)
    const txt = `${divs}/${max}/${maxName[0].name}`
    const fileSize = sizeOf(txt)
    const obj = {
      W: fileSize.width * (+maxName[0].num+1),
      H: fileSize.height * max,
      S: fileSize.width,
      M: max
    }
    return obj
  } catch (error) {
    return {}
  }
}
export default ({
  mode
}) => defineConfig({
  base: './',
  resolve: {
    alias: {
      /*
        路径别名
        若为文件系统路径必须是绝对路径的形式，否则将以别名原样呈现，不会解析为文件系统路径路径
      */
      '@': path.resolve(__dirname, './src')
    }
  },
  plugins: [ vue(), viteCompression({
    disable: true
  }), eslint({
    fix: true
  }) ],
  server: {
    host: 'localhost',
    port: 6547,
    open: true,
    strictPort: false,
    https: false
    // 反向代理
    // proxy: {
    //   '/': {
    //     target: 'http://172.16.1.215:5000',
    //     changeOrigin: true,
    //     rewrite: (path) => path.replace(/^\//, '')
    //   },
    // }
  },
  build: {
    rollupOptions: {
      input:{
        index: path.resolve(__dirname, 'index.html')
      },
      output: { // 静态资源分类打包
        chunkFileNames: 'js/[name]-[hash].js',
        entryFileNames: 'js/[name]-[hash].js',
        assetFileNames: 'assets/[name]-[hash].[ext]'
      }
    },
    terserOptions: { // 去掉打印
      compress: {
        drop_console: true,
        drop_debugger: true
      }
    }
  },
  define: { // 环境变量配置
    'process.env': {
      SERVERURL: mode === 'development' ? 'http://127.0.0.1:5000' : 'http://127.0.0.1:5000',
      imgSize: getImgSize()
    }
  }
})