/**
 * Copyright 1999-2019 Seata.io Group.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

const path = require('path');
const base = require('./webpack.base.conf');
const UglifyJsPlugin = require('uglifyjs-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const OptimizeCSSAssetsPlugin = require('optimize-css-assets-webpack-plugin');
const CleanWebpackPlugin = require('clean-webpack-plugin');

module.exports = Object.assign({}, base, {
  optimization: {
    minimizer: [
      new UglifyJsPlugin({
        cache: true,
        parallel: true,
        sourceMap: true,
      }),
      new OptimizeCSSAssetsPlugin({}),
    ],
  },
  plugins: [
    new CleanWebpackPlugin(path.resolve(__dirname, '../dist'), {
      root: path.resolve(__dirname, '../'),
    }),
    ...base.plugins,
    new MiniCssExtractPlugin({
      filename: './css/[name].css',
      chunkFilename: '[id].css',
    }),
  ],
  mode: 'production',
});