const path = require('path')

const port = 9527 // dev port

module.exports = {
  publicPath:
    process.env.NODE_ENV === 'production'
      ? '/vue-typescript-admin-template/'
      : '/',
  lintOnSave: process.env.NODE_ENV === 'development',
  productionSourceMap: false,
  devServer: {
    port: port,
    open: true,
    overlay: {
      warnings: false,
      errors: true
    },
    proxy: {
      // change xxx-api/login => mock/login
      // detail: https://cli.vuejs.org/config/#devserver-proxy
      // [process.env.VUE_APP_BASE_API]: {
      //   target: `http://localhost:${port}/mock`,
      //   changeOrigin: true,
      //   pathRewrite: {
      //     ['^' + process.env.VUE_APP_BASE_API]: ''
      //   }
      // }
      '/v1': {
        target: 'http://118.89.50.76:9527',
        changeOrigin: true,
        ws: true,
        pathRewrite: {
          '^/v1': ''
        }
      }
    }
  },
  pwa: {
    name: 'vue-typescript-admin-template'
  },
  chainWebpack(config) {
    // https://webpack.js.org/configuration/devtool/#development
    config.when(process.env.NODE_ENV === 'development', config =>
      config.devtool('cheap-source-map')
    )

    config.when(process.env.NODE_ENV !== 'development', config => {
      config.optimization.splitChunks({
        chunks: 'all',
        cacheGroups: {
          libs: {
            name: 'chunk-libs',
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: 'initial' // only package third parties that are initially dependent
          },
          elementUI: {
            name: 'chunk-elementUI', // split elementUI into a single package
            priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
          },
          commons: {
            name: 'chunk-commons',
            test: path.join(__dirname, 'src/components'),
            minChunks: 3, //  minimum common number
            priority: 5,
            reuseExistingChunk: true
          }
        }
      })
      config.optimization.runtimeChunk('single')
    })
  }
}