import path from 'path';
// eslint-disable-next-line import/no-extraneous-dependencies
import webpack from 'webpack';

const env = process.env.NODE_ENV;
const isProduction = env === 'production';
const config: webpack.Configuration = {
  entry: './src/index.js',
  module: {
    rules: [
      {
        test: /\.js$/,
        use: 'babel-loader',
        exclude: /node_modules|grammar-parser\.js$/,
      },
    ],
  },
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: isProduction ? 'formula-parser.min.js' : 'formula-parser.js',
    library: 'formulaParser',
    libraryTarget: 'umd',
  },
  plugins: [
    new webpack.DefinePlugin({
      'process.env.NODE_ENV': JSON.stringify(env),
    }),
  ],
};

module.exports = config;