const path = require('path')

const minify = process.env.NODE_ENV === 'development' ? false : {
  collapseWhitespace: true,
  removeComments: true,
  removeRedundantAttributes: true,
  removeScriptTypeAttributes: true,
  removeStyleLinkTypeAttributes: true,
  useShortDoctype: true,
  minifyCSS: true,
  minifyJS: true
}

function resolve(dir) {
  return path.join(__dirname, dir)
}

module.exports = {
  publicPath: process.env.NODE_ENV === 'production'
    ? '/form-generator/'
    : '/',
  pages: {
    index: {
      entry: "src/views/index/main.js",
      template: "public/index.html",
      filename: "index.html",
      chunks: ["chunk-vendors", "chunk-common", "index"],
      minify: minify
    },
    preview: {
      entry: "src/views/preview/main.js",
      template: "public/preview.html",
      filename: "preview.html",
      chunks: ["chunk-vendors", "chunk-common", "preview"],
      minify: minify
    }
  },
  productionSourceMap: false,
  configureWebpack: {
    externals: {
      'vue': 'Vue',
      'vue-router': 'VueRouter',
      'axios': 'axios',
      'element-ui': 'ELEMENT',
      'monaco': 'monaco',
      'beautifier': 'beautifier'
    }
  },
  chainWebpack(config) {
    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()
  }
}