const { CleanWebpackPlugin } = require('clean-webpack-plugin')
const CopyPlugin = require('copy-webpack-plugin')
const path = require('path')

module.exports = {
  entry: './src/index.js',
  output: {
    path: path.resolve(__dirname, 'dist'),
    filename: 'bundle.js'
  },
  module: {
    rules: [
      {
        test: /\.js$/,
        loaders: ['babel-loader'],
        exclude: [/node_modules/, /data/]
      },
      {
        test: /\.css$/,
        use: ['style-loader', 'css-loader']
      },
      {
        test: /\.(png|jpg|gif)$/,
        use: ['url-loader']
      },
      {
        test: /\.wasm$/,
        type: 'javascript/auto',
        loader: 'file-loader',
        options: {
          name: '[name].[hash:5].[ext]'
        }
      }
    ]
  },
  plugins: [new CleanWebpackPlugin(), new CopyPlugin(['public'])],
  devtool: 'source-map',
  // to make webpack work with emscripten js files
  target: 'web',
  node: {
    __dirname: false,
    fs: 'empty',
    Buffer: false,
    process: false
  }
}