const path = require('path')
const fs = require('fs')
const webpack = require('webpack')
const HtmlWebpackPlugin = require('html-webpack-plugin')
const MiniCssExtractPlugin = require('mini-css-extract-plugin')
const { VueLoaderPlugin } = require('vue-loader')
const CssMinimizerPlugin = require('css-minimizer-webpack-plugin')
const TerserPlugin = require('terser-webpack-plugin')
const CopyWebpackPlugin = require('copy-webpack-plugin')
// 预加载插件用于资源预加载
const PreloadWebpackPlugin = require('@vue/preload-webpack-plugin')
// 资源压缩插件
const CompressionWebpackPlugin = require('compression-webpack-plugin')


// 读取环境变量文件
function loadEnvFile(envPath) {
  if (fs.existsSync(envPath)) {
    const envContent = fs.readFileSync(envPath, 'utf8')
    const envVars = {}
    envContent.split('\n').forEach(line => {
      // 跳过注释和空行
      const trimmedLine = line.trim()
      if (!trimmedLine || trimmedLine.startsWith('#')) return

      const equalIndex = trimmedLine.indexOf('=')
      if (equalIndex > 0) {
        const key = trimmedLine.substring(0, equalIndex).trim()
        const value = trimmedLine.substring(equalIndex + 1).trim()
        // 移除首尾的引号（单引号或双引号）
        const cleanValue = value.replace(/^["']|["']$/g, '')
        envVars[key] = cleanValue
      }
    })
    return envVars
  }
  return {}
}

// 根据环境加载对应的 .env 文件
// 确保 NODE_ENV 有正确的值
const nodeEnv = process.env.NODE_ENV || 'development'
const isDevelopment = process.env.NODE_ENV === 'development'
const isProduction = process.env.NODE_ENV === 'production'

let envVars = {}
if (isProduction) {
  envVars = loadEnvFile('.env.production')
} else if (isDevelopment) {
  envVars = loadEnvFile('.env.development')
}

// 合并到 process.env
Object.assign(process.env, envVars)

// 获取 public path
const getPublicPath = () => {
  const routerBase = process.env.VUE_ROUTER_BASE || process.env.VUE_APP_ROUTER_BASE || '/'
  // 确保路径以斜杠结尾
  const normalizedPath = routerBase.endsWith('/') ? routerBase : routerBase + '/'
  const publicPath = isProduction ? normalizedPath : '/'
  console.log('==========',process.env.NODE_ENV)
  console.log(`🔧 构建环境: ${process.env.NODE_ENV || 'development'}`)
  console.log(`📁 Public Path: ${publicPath}`)
  if (isProduction && (process.env.VUE_ROUTER_BASE || process.env.VUE_APP_ROUTER_BASE)) {
    console.log(`📖 从 .env.production 读取路由基础路径: ${routerBase}`)
  }

  return publicPath
}

// 验证并设置正确的 mode 值
const getMode = () => {
  const validModes = ['development', 'production', 'none']
  if (validModes.includes(nodeEnv)) {
    return nodeEnv
  }
  // 如果 NODE_ENV 不是有效值，根据情况设置默认值
  console.warn(`⚠️  NODE_ENV "${nodeEnv}" 不是有效的 webpack mode，默认使用 development`)
  return 'development'
}

module.exports = {
  mode: getMode(),
  // 添加这个配置来抑制特定警告
  stats: {
    warnings: isDevelopment ? false : true, // 开发环境完全关闭警告，生产环境显示
    warningsFilter: [
      /export .* was not found in/,
      /Deprecation Warning/,
      /sass-lang\.com\/d\/import/,
      /Global built-in functions are deprecated/,
      /@import rules are deprecated/,
      /Invalid deprecation/,
      /Module Warning \(from \.\/node_modules\/sass-loader/,
      /Sass @import rules are deprecated/,
      /More info and automated migrator/,
      /downloadByUrl.*was not found/,
      /possible exports:/,
      /WARNING in/,
      /Module not found/,
      /Can't resolve/,
      /\[BABEL\] Note:/,
      /code generator has deoptimised/,
      /exceeds the max of/
    ]
  },
  // 缓存配置 - 大幅提升重新构建速度
  cache: {
    type: 'filesystem',
    buildDependencies: {
      config: [__filename],
    },
    cacheDirectory: path.resolve(__dirname, 'node_modules/.cache/webpack'),
    compression: 'gzip',
    profile: false,
    maxMemoryGenerations: isDevelopment ? 5 : Infinity,
    maxAge: 1000 * 60 * 60 * 24 * 7, // 7天
    allowCollectingMemory: isDevelopment,
  },
  entry: {
    main: path.resolve(__dirname, 'src/main.js')
  },

  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: isDevelopment ? 'js/[name].js' : 'js/[name].[contenthash:8].js',
    chunkFilename: isDevelopment ? 'js/[name].chunk.js' : 'js/[name].[contenthash:8].chunk.js',
    publicPath: getPublicPath(),
    clean: true,
    assetModuleFilename: 'assets/[name].[hash:8][ext]'
  },

  resolve: {
    alias: {
      '@': path.resolve(__dirname, 'src'),
      '@components': path.resolve(__dirname, 'src/components'),
      '@views': path.resolve(__dirname, 'src/views'),
      '@utils': path.resolve(__dirname, 'src/utils'),
      '@lib': path.resolve(__dirname, 'src/components/lib'),
      '@assets': path.resolve(__dirname, 'src/assets'),
      '@api': path.resolve(__dirname, 'src/api'),
      '#': path.resolve(__dirname, 'public'),
      'vue$': 'vue/dist/vue.esm.js',
      'element-ui/lib/el-tooltip': 'element-ui/lib/tooltip',

      // Component Gallery 别名
      '@component-gallery/assets': path.join(__dirname, 'src/components/common-assets'),
      '@component-gallery/utils': path.join(__dirname, 'src/components/common-inner-utils'),
      '@component-gallery/theme-chalk': path.join(__dirname, 'src/components/theme-chalk'),
      '~@component-gallery/theme-chalk': path.join(__dirname, 'src/components/theme-chalk'),
      "@component-gallery/build-event-bus-path": path.join(__dirname, 'src/components/build-event-bus-path/lib/main'),
      "@component-gallery/base-components": path.join(__dirname, 'src/components/common-base-components'),
      "@component-gallery/base-art-player": path.join(__dirname, 'src/components/common-base-art-player'),
      "@component-gallery/base-video-player": path.join(__dirname, 'src/components/common-base-component-video-player'),
      "@component-gallery/video-map-camera-position": path.join(__dirname, 'src/components/common-comp-video-map-camera-position/src/entry/CommonVideoMapCameraPosition.vue'),
      "@component-gallery/video-map-view": path.join(__dirname, 'src/components/common-comp-video-map-view/src/entry/CommonVideoMapView.vue'),
      "@component-gallery/horn-shout": path.join(__dirname, 'src/components/common-comp-horn-shout/src/entry/CommonHornShout.vue'),
      "@component-gallery/lib": path.join(__dirname, 'src/components/lib'),
      "@component-gallery/one-key-alarm": path.join(__dirname, 'src/components/common-comp-one-key-alarm/src/entry/CommonOneKeyAlarm.vue'),
      "@component-gallery/alarm-list": path.join(__dirname, 'src/components/common-comp-alarm-list'),
      "@component-gallery/emergency-events-inquiry": path.join(__dirname, 'src/components/common-comp-emergency-events-inquiry'),
      "@component-gallery/alarm-detail": path.join(__dirname, 'src/components/common-comp-alarm-detail/src/entry/CommonAlarmDetail.vue'),
      "@component-gallery/horn-tree": path.join(__dirname, 'src/components/common-comp-horn-tree/src/entry/CommonHornTree.vue'),
      "@component-gallery/horn-broadcast": path.join(__dirname, 'src/components/common-comp-horn-broadcast/src/entry/CommonHornBroadcast.vue'),
      "@component-gallery/map": path.join(__dirname, 'src/components/common-comp-map/src/entry/CommonMap.vue'),
      "@component-gallery/tool-box": path.join(__dirname, 'src/components/common-comp-tool-box/src/entry/CommonToolBox.vue'),
      "@component-gallery/kanzheli": path.join(__dirname, 'src/components/common-comp-kanzheli/src/entry/CommonKanzheli.vue'),
      "@component-gallery/alarm-filte": path.join(__dirname, 'src/components/common-comp-alarm-filte/src/entry/CommonAlarmFilte.vue'),
      "@component-gallery/camera-choose": path.join(__dirname, 'src/components/common-comp-camera-choose/src/CommonCameraChoose.vue'),
      "@component-gallery/coordinate-picking": path.join(__dirname, 'src/components/common-comp-coordinate-picking/src/entry/CommonCoordinatePicking.vue'),
      "@component-gallery/coordinate-positioning": path.join(__dirname, 'src/components/common-comp-coordinate-positioning/src/entry/CommonCoordinatePositioning.vue'),
      "@component-gallery/layers-control": path.join(__dirname, 'src/components/common-comp-layers-control/src/entry/CommonLayersControl.vue'),
      "@component-gallery/slope-aspect-analysis": path.join(__dirname, 'src/components/common-comp-slope-aspect-analysis/src/CommonSlopeAspectAnalysis.vue'),
      "@component-gallery/spot-detail": path.join(__dirname, 'src/components/common-comp-spot-detail/src/entry/SpotDetail.vue'),
      "@component-gallery/tool-camera-filte": path.join(__dirname, 'src/components/common-comp-tool-camera-filte/src/CommonCameraFilte.vue'),
      "@component-gallery/tool-config-item": path.join(__dirname, 'src/components/common-comp-tool-config-item/src/entry/CommonToolConfigItem.vue'),
      "@component-gallery/tools-plot": path.join(__dirname, 'src/components/common-comp-tools-plot/src/CommonToolsPlot.vue'),
      "@component-gallery/viewshed-analysis": path.join(__dirname, 'src/components/common-comp-viewshed-analysis/src/CommonViewshedAnalysis.vue'),
      "@component-gallery/tool-measure": path.join(__dirname, 'src/components/common-comp-tool-measure/src/entry/CommonCompToolMeasure.vue'),
      "@component-gallery/tool-section-analyse": path.join(__dirname, 'src/components/common-comp-tool-section-analyse/src/entry/CommonCompToolSectionAnalyse.vue'),
      "@component-gallery/layer-style-config": path.join(__dirname, 'src/components/common-comp-layer-style-config/src/entry/CommonLayerStyleConfig.vue'),
      "@component-gallery/azimuthal-measurement": path.join(__dirname, 'src/components/common-comp-azimuthal-measurement/src/entry/AzimuthalMeasurement.vue'),
      "@component-gallery/terrain-dig": path.join(__dirname, 'src/components/common-comp-terrain-dig/src/entry/TerrainDig.vue'),
      "@component-gallery/lnglat-select-point": path.join(__dirname, 'src/components/common-comp-lnglat-select-point/src/entry/CommonLnglatSelectPoint.vue'),
      "@component-gallery/tool-spot": path.join(__dirname, 'src/components/common-comp-tool-spot/src/entry/SpotSearch.vue'),
      "@component-gallery/dialog-tool": path.join(__dirname, 'src/components/common-comp-dialog-tool/src/entry/CommonDialogTool.vue'),
      "@component-gallery/layers-tool": path.join(__dirname, 'src/components/common-comp-layers-tool/src/entry/CommonLayersTool.vue'),
      "@component-gallery/horn-circle-selection": path.join(__dirname, 'src/components/common-comp-horn-circle-selection/src/entry/CommonHornCircleSelection.vue'),
      "@component-gallery/around-analysis": path.join(__dirname, 'src/components/common-comp-around-analysis/src/CommonAroundAnalysis.vue'),
      "@component-gallery/video-inspection-polygon": path.join(__dirname, 'src/components/common-comp-video-inspection-polygon/src/entry/CommonVideoInspectionPolygon.vue'),
      "@component-gallery/footer": path.join(__dirname, 'src/components/common-comp-footer/src/entry/CommonFooter.vue'),
      "@component-gallery/multimodal-assistant": path.join(__dirname, 'src/components/common-comp-multimodal-assistant/src/entry/CommonMultimodalAssistant.vue'),
      "@component-gallery/alarm-detail-large": path.join(__dirname, 'src/components/common-comp-alarm-detail-large/src/entry/AlarmDetailLarge.vue'),
      "@component-gallery/alarm-transfer-event": path.join(__dirname, 'src/components/common-comp-alarm-transfer-event/src/entry/AlarmTransferEvent.vue'),
      "@component-gallery/tree": path.join(__dirname, 'src/components/common-comp-tree/src/entry/CommonTree.vue'),
      "@component-gallery/iot-tree": path.join(__dirname, 'src/components/common-comp-iot-tree/src/entry/CommonIotTree.vue'),
      "@component-gallery/radar-tree": path.join(__dirname, 'src/components/common-comp-radar-tree/src/entry/CommonRadarTree.vue'),
      "@component-gallery/uav-tree": path.join(__dirname, 'src/components/common-comp-uav-tree/src/entry/CommonUavTree.vue'),
      "@component-gallery/source-tree": path.join(__dirname, 'src/components/common-comp-source-tree/src/entry/CommonSourceTree.vue'),
      "@component-gallery/grid-tree": path.join(__dirname, 'src/components/common-comp-grid-tree/src/entry/CommonGridTree.vue'),
      "@component-gallery/grid-operator-tree": path.join(__dirname, 'src/components/common-comp-grid-operator-tree/src/entry/CommonGridOperatorTree.vue'),
      "@component-gallery/track-popup": path.join(__dirname, 'src/components/common-comp-track-popup/src/entry/TrackPopup.vue'),
      "@component-gallery/tree-recorder": path.join(__dirname, 'src/components/common-comp-tree-recorder/src/entry/CommonTreeRecorder.vue'),
      "@component-gallery/multiple-device-search": path.join(__dirname, 'src/components/common-comp-multiple-device-search/src/entry/CommonMultipleDeviceSearch.vue'),
      "@component-gallery/camera-circle-selection": path.join(__dirname, 'src/components/common-comp-camera-circle-selection/src/CommonCameraCircleSelection.vue'),
      "@component-gallery/algorithm-configuration": path.join(__dirname, 'src/components/common-comp-algorithm-configuration/src/entry/AlgorithmConfiguration.vue'),
      "@component-gallery/algorithm-configuration-dialog": path.join(__dirname, 'src/components/common-comp-algorithm-configuration-dialog/src/entry/index.vue'),
      "@component-gallery/satellite-sense": path.join(__dirname, 'src/components/common-comp-tool-satellite-sense/src/entry/CommonSatelliteSense.vue'),
      "@component-gallery/tool-space": path.join(__dirname, 'src/components/common-comp-tool-space/src/entry/SpotSpace.vue'),
      "@component-gallery/tool-compound": path.join(__dirname, 'src/components/common-comp-tool-compound/src/entry/SpotCompound.vue'),
      "@component-gallery/tool-complex": path.join(__dirname, 'src/components/common-comp-tool-complex/src/entry/ToolComplex.vue'),
      "@component-gallery/tool-swiper": path.join(__dirname, 'src/components/common-comp-tool-swiper/src/entry/ToolSwiper.vue'),
      "@component-gallery/sense-time-line": path.join(__dirname, 'src/components/common-comp-sense-time-line/src/entry/SenseTimeLine.vue'),
      "@component-gallery/weather-small": path.join(__dirname, 'src/components/common-comp-weather-small/src/entry/CommonWeatherSmall.vue'),
      "@component-gallery/search-map": path.join(__dirname, 'src/components/common-comp-search-map/src/entry/CommonSearchMap.vue'),
      "@component-gallery/inspection-task-list": path.join(__dirname, 'src/components/common-comp-inspection-task-list/src/entry/CommonInspectionTaskList.vue'),
      "@component-gallery/uav-fly-manage": path.join(__dirname, 'src/components/common-comp-uav-fly-manage/src/entry/UavFlyManage.vue'),

    },
    extensions: ['.js', '.vue', '.json', '.ts', '.tsx'],
    // 解决 webpack 5 严格模块解析问题
    fullySpecified: false,
    fallback: {
      path: require.resolve('path-browserify'),
      crypto: false,
      stream: false,
      fs: false,
      net: false,
      tls: false,
      buffer: require.resolve('buffer'),
      util: require.resolve('util')
    }
  },

  module: {
    rules: [
      // 处理第三方库的严格模块解析问题
      {
        test: /\.m?js$/,
        resolve: {
          fullySpecified: false
        }
      },
      // 处理 @ct 相关的 ES6 语法问题
      {
        test: /\.m?js$/,
        include: [
          // 指定需要转译的 node_modules 包
          /node_modules\/@ct/,
          /node_modules\/marked/,
          /node_modules\/@ct\/ais-js-kit/
        ],
        use: {
          loader: 'babel-loader',
          options: {
            presets: [['@babel/preset-env', { modules: false }]],
            plugins: [
              '@babel/plugin-proposal-nullish-coalescing-operator',
              '@babel/plugin-proposal-optional-chaining',
            ],
          },
        },
      },
      // Vue 文件处理
      {
        test: /\.vue$/,
        loader: 'vue-loader',
        options: {
          compilerOptions: {
            preserveWhitespace: false
          }
        }
      },

      // JavaScript 文件处理
      {
        test: /\.js$/,
        exclude: /node_modules(?!\/(@ct|marked))/,
        use: {
          loader: 'babel-loader',
          options: {
            presets: ['@babel/preset-env'],
            plugins: [
              "@babel/plugin-proposal-optional-chaining",
              "@babel/plugin-proposal-nullish-coalescing-operator",
              "@babel/plugin-proposal-class-properties"
            ],
            // 启用缓存
            cacheDirectory: true,
            cacheCompression: false
            // plugins: [
            //   [
            //     'babel-plugin-component',
            //     {
            //       libraryName: 'element-ui',
            //       libraryDirectory: 'lib',
            //       styleLibraryName: 'theme-chalk'
            //     },
            //     'element-ui'
            //   ]
            // ]
          }
        }
      },

      // CSS 文件处理
      {
        test: /\.css$/,
        use: [
          isProduction ? MiniCssExtractPlugin.loader : 'vue-style-loader',
          {
            loader: 'css-loader',
            options: {
              sourceMap: true,
              // 处理CSS中的URL引用
              url: {
                filter: (url, resourcePath) => {
                  // 对于第三方包中的静态资源路径，返回false让webpack跳过处理
                  // 我们将通过CopyPlugin来复制这些资源
                  if (resourcePath.includes('node_modules/@ct/component-gallery-theme-chalk') &&
                      url.startsWith('./static/')) {
                    return false;
                  }
                  return true;
                },
              },
            }
          },
          {
            loader: 'postcss-loader',
            options: {
              postcssOptions: {
                plugins: [
                  require('postcss-pxtorem')({
                    rootValue: 100,
                    propList: ['*'],
                    // exclude: /node_modules/i
                    exclude(file) {
                      if (file.indexOf("component-gallery-theme-chalk") !== -1 || file.indexOf("common-base-component-video-player-listener") !== -1) {
                        return true;
                      } else {
                        return false;
                      }
                    }
                  })
                ]
              }
            }
          }
        ]
      },

      // SCSS 文件处理
      {
        test: /\.scss$/,
        use: [
          isProduction ? MiniCssExtractPlugin.loader : 'vue-style-loader',
          {
            loader: 'css-loader',
            options: {
              sourceMap: true,
            }
          },
          // {
          //   loader: 'postcss-loader',
          //   options: {
          //     sourceMap: true,
          //     postcssOptions: {
          //       plugins: [
          //         require('postcss-pxtorem')({
          //           rootValue: 16,
          //           propList: ['*'],
          //           exclude: /node_modules/i
          //         })
          //       ]
          //     }
          //   }
          // },
          {
            loader: 'resolve-url-loader',
            options: {
              sourceMap: true,
            }
          },
          {
            loader: 'sass-loader',
            options: {
              sourceMap: true,
              sassOptions: {
                // 抑制 Sass 弃用警告
                quietDeps: true,
                verbose: false,
                // 使用通配符抑制所有弃用警告
                silenceDeprecations: ['*']
              }
            },
          },
        ]
      },

      // 图片文件处理
      {
        test: /\.(png|jpe?g|gif|svg|webp|tiff?)$/i,
        type: 'asset',
        parser: {
          dataUrlCondition: {
            maxSize: 4 * 1024 // 4KB以下的图片转为base64，减少小图片请求
          }
        },
        generator: {
          filename: 'img/[name].[hash:8][ext]'
        }
      },

      // 字体文件处理
      {
        test: /\.(woff|woff2|eot|ttf|otf)$/i,
        type: 'asset',
        parser: {
          dataUrlCondition: {
            maxSize: 8 * 1024
          }
        },
        generator: {
          filename: 'font/[name].[hash:8][ext]'
        }
      },

      // 媒体文件处理
      {
        test: /\.(mp4|webm|ogg|mp3|wav|flac|aac)$/i,
        type: 'asset',
        generator: {
          filename: 'media/[name].[hash:8][ext]'
        }
      }
    ]
  },

  plugins: [
    new VueLoaderPlugin(),

    new HtmlWebpackPlugin({
      template: path.resolve(__dirname, 'public/index.html'),
      filename: 'index.html',
      inject: true,
      templateParameters: {
        BASE_URL: getPublicPath(),
        VUE_APP_ROUTER_BASE: getPublicPath()
      },
      publicPath: getPublicPath(),
      // 优化资源加载优先级
      scriptLoading: 'defer',
      minify: isProduction ? {
        removeComments: true,
        collapseWhitespace: true,
        removeRedundantAttributes: true,
        useShortDoctype: true,
        removeEmptyAttributes: true,
        removeStyleLinkTypeAttributes: true,
        keepClosingSlash: true,
        minifyJS: true,
        minifyCSS: true,
        minifyURLs: true
      } : false
    }),

    new webpack.DefinePlugin({
      // 创建一个干净的环境变量对象，避免冲突
      'process.env': JSON.stringify({
        NODE_ENV: process.env.NODE_ENV || 'development',
        VUE_APP_ROUTER_BASE: getPublicPath(),
        VUE_ROUTER_BASE: process.env.VUE_ROUTER_BASE || process.env.VUE_APP_ROUTER_BASE || '/', // 确保VUE_ROUTER_BASE被传递
        // 只包含需要的环境变量，避免泄露敏感信息
        ...Object.keys(process.env)
          .filter(key => key.startsWith('VUE_APP_') || key === 'NODE_ENV' || key === 'VUE_ROUTER_BASE')
          .reduce((env, key) => {
            env[key] = process.env[key];
            return env;
          }, {})
      }),
      'process.browser': true,
      'process.version': JSON.stringify(process.version),
      'process.platform': JSON.stringify(process.platform),
      'process.type': JSON.stringify('renderer')
    }),

    new CopyWebpackPlugin({
      patterns: [
        {
          from: path.resolve(__dirname, 'public'),
          to: path.resolve(__dirname, 'dist'),
          globOptions: {
            ignore: ['**/index.html']
          }
        },
        // 复制本地assets到static目录，以匹配第三方CSS包中的相对路径引用
        {
          from: path.resolve(__dirname, 'src/components/common-assets/image'),
          to: path.resolve(__dirname, 'dist/static/image'),
          globOptions: {
            ignore: ['**/.DS_Store']
          }
        }
      ]
    })
  ].concat(isProduction ? [
    new MiniCssExtractPlugin({
      filename: 'css/[name].[contenthash:8].css',
      chunkFilename: 'css/[name].[contenthash:8].css',
      ignoreOrder: true // 忽略 CSS 顺序警告
    }),
    // 预加载关键资源 - 只在生产环境使用，排除图片资源
    new PreloadWebpackPlugin({
      rel: 'preload',
      as(entry) {
        if (/\.css$/.test(entry)) return 'style';
        if (/\.woff2?$/.test(entry)) return 'font';
        // 移除图片的 preload，让它们按需加载
        // if (/\.(png|jpg|jpeg|gif|svg)$/.test(entry)) return 'image';
        return 'script';
      },
      include: ['vue-vendor', 'element-ui', 'main'], // 预加载关键chunk
      fileBlacklist: [
        /\.map$/,
        /hot-update\.js$/,
        /\.(png|jpg|jpeg|gif|svg|webp|ico)$/ // 排除所有图片文件
      ]
    }),
    // 预获取其他资源 - 只在生产环境使用，排除图片资源
    new PreloadWebpackPlugin({
      rel: 'prefetch',
      include: 'asyncChunks', // 预获取异步chunk
      fileBlacklist: [
        /\.map$/,
        /hot-update\.js$/,
        /\.(png|jpg|jpeg|gif|svg|webp|ico)$/ // 排除所有图片文件
      ]
    }),
    // Gzip压缩 - 提高加载速度，减少带宽消耗
    new CompressionWebpackPlugin({
      algorithm: 'gzip',
      test: /\.(js|css|html|svg)$/,
      threshold: 8192, // 8KB以上的文件才压缩
      minRatio: 0.8,
      deleteOriginalAssets: false // 保留原文件
    }),
    // Brotli压缩 - 比Gzip更高的压缩率
    new CompressionWebpackPlugin({
      algorithm: 'brotliCompress',
      test: /\.(js|css|html|svg)$/,
      compressionOptions: {
        level: 11,
      },
      threshold: 8192,
      minRatio: 0.8,
      filename: '[path][base].br',
      deleteOriginalAssets: false
    })
  ] : []),

  optimization: {
    minimize: isProduction,
    minimizer: [
      new TerserPlugin({
        terserOptions: {
          compress: {
            drop_console: isProduction,
            drop_debugger: isProduction
          }
        },
        parallel: 2 // 减少并行处理数量，降低内存使用
      }),
      // 添加CSS压缩器
      new CssMinimizerPlugin({
        parallel: 2,
        minimizerOptions: {
          preset: [
            'default',
            {
              discardComments: { removeAll: true },
            },
          ],
        },
      })
    ],
    splitChunks: {
      chunks: 'all',
      maxInitialRequests: 6, // 减少初始请求数量
      maxAsyncRequests: 8,   // 减少异步请求数量
      minSize: 100000,       // 100KB 最小包大小，避免过小的包
      maxSize: 8000000,      // 8MB 最大包大小，允许更大的包
      cacheGroups: {
        // Vue 生态系统合并打包
        vue: {
          test: /[\\/]node_modules[\\/](vue|vue-router|vuex|@vue)[\\/]/,
          name: 'vue-vendor',
          chunks: 'all',
          priority: 30,
          enforce: true // 强制打包，不受大小限制
        },
        // Element UI 完整生态
        elementUI: {
          test: /[\\/]node_modules[\\/](element-ui|element-theme-|@element)[\\/]/,
          name: 'element-ui',
          chunks: 'all',
          priority: 25,
          enforce: true
        },
        // 大型第三方库合并
        largeLibs: {
          test: /[\\/]node_modules[\\/](echarts|artplayer|hls\.js|mpegts\.js|fabric|@ct\/ct_map_ol|@ct\/icons-v2)[\\/]/,
          name: 'large-libs',
          chunks: 'all',
          priority: 23,
          enforce: true
        },
        // 工具库合并
        utils: {
          test: /[\\/]node_modules[\\/](lodash|moment|dayjs|axios|crypto-js|uuid|classnames|immer)[\\/]/,
          name: 'utils',
          chunks: 'all',
          priority: 21,
          enforce: true
        },
        // CT组件库合并
        ctComponents: {
          test: /[\\/]node_modules[\\/]@ct[\\/]/,
          name: 'ct-components',
          chunks: 'all',
          priority: 20,
          enforce: true
        },
        // 其他第三方库
        vendor: {
          test: /[\\/]node_modules[\\/]/,
          name: 'vendors',
          chunks: 'all',
          priority: 10,
          minSize: 200000, // 200KB 最小大小
          enforce: true
        },
        // 公共代码 - 更宽松的条件
        common: {
          name: 'common',
          minChunks: 2,
          chunks: 'all',
          priority: 5,
          reuseExistingChunk: true,
          minSize: 50000, // 50KB
          maxSize: 3000000 // 3MB
        }
      }
    }
  },

  devServer: {
    host: '0.0.0.0',
    historyApiFallback: true,
    static: [
      {
        directory: path.join(__dirname, 'public'),
        publicPath: getPublicPath()
      },
      // 添加静态资源服务，支持第三方CSS包的相对路径访问
      {
        directory: path.join(__dirname, 'src/components/common-assets/image'),
        publicPath: '/static/image'
      }
    ],
    // open: true,
    compress: true,
    hot: true, // 只使用HMR，不用liveReload
    port: 3000,
    allowedHosts: 'all',
    // 开发服务器性能优化
    devMiddleware: {
      writeToDisk: false, // 不写入磁盘，提高速度
      stats: 'errors-only', // 只显示错误
    },
    client: {
      logging: 'error', // 只显示错误级别的日志
      overlay: {
        errors: true,
        warnings: false, // 不显示警告
        runtimeErrors: false // 减少运行时错误覆盖
      },
      progress: false, // 关闭进度条减少内存
      webSocketTransport: 'ws' // 使用更高效的WebSocket传输
    },
    proxy: [
      {
        context: ['/api'],
        target: 'http://localhost:3000',
        changeOrigin: true,
        pathRewrite: { '^/api': '' }
      }
    ]
  },

  // 文件监听优化 - 减少内存使用
  watchOptions: {
    ignored: ['**/node_modules/**', '**/.git/**', '**/dist/**', '**/.webpack/**', '**/.cache/**'], // 使用glob模式
    aggregateTimeout: 500, // 增加延迟，减少编译频率
    poll: false, // 使用原生文件监听，更高效
    followSymlinks: false // 不跟随符号链接
  },

  devtool: isDevelopment ? 'eval-cheap-module-source-map' : false,

  performance: {
    hints: false,
    maxAssetSize: 2000000,
    maxEntrypointSize: 2000000
  },

  // 内存优化
  cache: {
    type: 'filesystem',
    cacheDirectory: path.resolve(__dirname, '.webpack'),
    compression: 'gzip',
    // 限制缓存大小，防止内存溢出
    maxMemoryGenerations: isDevelopment ? 1 : 0,
    // 内存管理配置
    memoryCacheUnaffected: true,
    buildDependencies: {
      config: [__filename]
    }
  }
}