/**
 * Webpack config for production electron main process
 */

const path = require('path');
const webpack = require('webpack');
const merge = require('webpack-merge');
const TerserPlugin = require('terser-webpack-plugin');
const { BundleAnalyzerPlugin } = require('webpack-bundle-analyzer');
const baseConfig = require('./webpack.config.base');
const CheckNodeEnv = require('./internals/scripts/CheckNodeEnv');

CheckNodeEnv('production');

module.exports = merge.smart(baseConfig, {
  devtool: 'source-map',

  mode: 'production',

  target: 'electron-main',

  entry: './app/main.dev',

  output: {
    path: __dirname,
    filename: './app/main.prod.js'
  },

  optimization: {
    minimizer: [
      new TerserPlugin({
        parallel: true,
        sourceMap: true
      })
    ]
  },

  plugins: [
    new BundleAnalyzerPlugin({
      analyzerMode:
        process.env.OPEN_ANALYZER === 'true' ? 'server' : 'disabled',
      openAnalyzer: process.env.OPEN_ANALYZER === 'true'
    }),

    /**
     * Create global constants which can be configured at compile time.
     *
     * Useful for allowing different behaviour between development builds and
     * release builds
     *
     * NODE_ENV should be production so that modules do not perform certain
     * development checks
     */
    new webpack.EnvironmentPlugin({
      NODE_ENV: 'production',
      DEBUG_PROD: 'false'
    }),
    new webpack.DefinePlugin({
      __static: `process.resourcesPath + "/static"`
    }),
  ],

  /**
   * Disables webpack processing of __dirname and __filename.
   * If you run the bundle in node.js it falls back to these values of node.js.
   * https://github.com/webpack/webpack/issues/2010
   */
  externals: ['grpc'],
  node: {
    __dirname: false,
    __filename: false
  }
});