const CssMinimizerPlugin = require('css-minimizer-webpack-plugin');
const path = require('path');

const webpack = require('webpack')
const CompressionPlugin = require('compression-webpack-plugin')
const zlib = require('zlib')
module.exports = {
    devServer:{

        proxy: {
            '/api':{
                target:'http://192.168.10.54:9100/v1',
                changOrigin:true,
                pathRewrite:{
                    '^/api':''
                }
            }
        }
    },
    configureWebpack: {
        optimization: {
            minimizer: [
                new CssMinimizerPlugin(),
            ],
            splitChunks: {
                chunks: 'all',
                cacheGroups: {
                    vendor: {
                      test: /[\\/]node_modules[\\/](element-ui|v-viewer)[\\/]/,
                      name: 'vendors',
                      chunks: 'all',
                      priority: 10, // 优先级设置，确保优先打包这些库
                      enforce: true // 忽略默认的最大初始请求和大小限制
                    }
                  }
              }
        }
    },
    configureWebpack: {
        resolve: {
          alias: {
            '@': path.resolve(__dirname, './src'),
            '@i': path.resolve(__dirname, './src/assets'),
          }
        },
        plugins: [
          new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/),
          // 下面两项配置才是 compression-webpack-plugin 压缩配置
          // 压缩成 .gz 文件
          new CompressionPlugin({
            filename: '[path][base].gz',
            algorithm: 'gzip',
            test: /\.js$|\.css$|\.html$/,
            threshold: 10240,
            minRatio: 0.8
          }),
          // 压缩成 .br 文件，如果 zlib 报错无法解决，可以注释这段使用代码，一般本地没问题，需要注意线上服务器会可能发生找不到 zlib 的情况。
          new CompressionPlugin({
            filename: '[path][base].br',
            algorithm: 'brotliCompress',
            test: /\.(js|css|html|svg)$/,
            compressionOptions: {
              params: {
                [zlib.constants.BROTLI_PARAM_QUALITY]: 11
              }
            },
            threshold: 10240,
            minRatio: 0.8
          })
        ]
      }
}