const path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
const isDev = process.env.NODE_ENV !== 'production';

const { VueLoaderPlugin } = require('vue-loader');
const CopyPlugin = require('copy-webpack-plugin');

module.exports = {
  entry: {
    index: path.join(__dirname, '../src/main.js'),
  },
  output: {
    filename: isDev ? '[name].bundle.[chunkhash].js' : '[name].js',
    path: path.resolve(__dirname, '../dist'),
    clean: true, // 每一次打包前清空dist文件夹
  },
  module: {
    rules: [
      {
        test: /\.(png|svg|jpeg|gif)$/i,
        include: path.join(__dirname, '../src'),
        type: 'asset/resource',
      },
      {
        test: /\.(woff|woff2|eot|ttf|otf)$/i,
        include: [path.join(__dirname, '../src')],
        type: 'asset/resource',
      },
      {
        test: /\.(le|c)ss$/i,
        include: [path.join(__dirname, '../src')],
        use: [
          {
            loader: MiniCssExtractPlugin.loader,
            options: {
              publicPath: '../',
            },
          },
          {
            loader: 'css-loader',
            options: {
              esModule: true,
              modules: {
                namedExport: true,
                localIdentName: '[local]',
              },
            },
          },
          {
            loader: 'postcss-loader',
            options: {
              postcssOptions: {
                plugins: [['postcss-preset-env']],
              },
            },
          },
          'less-loader',
        ],
      },
      {
        test: /\.vue$/,
        loader: 'vue-loader',
      },
    ],
  },
  resolve: {
    extensions: ['.js', '.jsx', '.ts', '.tsx'],
    alias: {
      '@': path.join(__dirname, '../src'),
    },
    symlinks: false,
  },
  plugins: [
    new HtmlWebpackPlugin({
      title: 'Vue App',
      favicon: path.join(__dirname, '../public/favicon.ico'),
      template: path.join(__dirname, '../public/index.html'),
    }),
    new MiniCssExtractPlugin({
      filename: isDev ? '[name].[contenthash].css' : '[name].css',
      chunkFilename: isDev ? '[id].[contenthash].css' : '[id].css',
    }),
    // 请确保引入这个插件！
    new VueLoaderPlugin(),
    new CopyPlugin({
      patterns: [
        {
          from: path.join(__dirname, '../public'),
          to: path.join(__dirname, '../dist', 'public'),
        },
      ],
    }),
  ],
};