const path = require("path");
const { CleanWebpackPlugin } = require("clean-webpack-plugin");

module.exports = {
  entry: {
    entry1: "./src/entry/entry1.js",
    entry2: "./src/entry/entry2.js",
  },
  // devtool: 'source-map',
  plugins: [new CleanWebpackPlugin()],
  output: {
    filename: "[name].bundle.js",
    path: path.resolve(__dirname, "dist"),
  },
  optimization: {
    splitChunks: {
      chunks: "initial",
      minSize: 1,
      maxSize: 0,
      cacheGroups: {
        vendors: {
          test: /[\\/]node_modules[\\/]/,
          priority: -10,
        },
        default: {
          minChunks: 1,
          priority: -20,
          reuseExistingChunk: true,
        },
      },
    },
  },
  // default config
  // optimization: {
  //   splitChunks: {
  //     chunks: 'async',
  //     minSize: 30000,
  //     minChunks: 1,
  //     maxAsyncRequests: 5,
  //     maxInitialRequests: 3,
  //     automaticNameDelimiter: '~',
  //     automaticNameMaxLength: 30,
  //     name: true,
  //     cacheGroups: {
  //       vendors: {
  //         test: /[\\/]node_modules[\\/]/,
  //         priority: -10
  //       },
  //       default: {
  //         minChunks: 2,
  //         priority: -20,
  //         reuseExistingChunk: true
  //       }
  //     }
  //   }
  // }
};