const path = require('path');
const nodeExternals = require('webpack-node-externals');
const CopyPlugin = require('copy-webpack-plugin');

module.exports = {
  entry: './src/index.ts',
  target: 'node',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'index.js',
    library: {
      type: 'commonjs2',
    },
  },
  mode: 'production',
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        use: 'ts-loader',
        exclude: /node_modules/,
      },
    ],
  },
  externalsPresets: { node: true }, // in order to ignore built-in modules like path, fs, etc.
  externals: [nodeExternals()], // in order to ignore all modules in node_modules folder
  resolve: {
    extensions: ['.tsx', '.ts', '.js'],
  },
  plugins: [
    new CopyPlugin({
      patterns: [
        {
          from: path.resolve(__dirname, 'src/parse/ts/tsconfig.json'),
          to: path.resolve(__dirname, 'dist/tsconfig.json'),
        },
      ],
    }),
  ],
};