const path = require('path')
const nodeExternals = require('webpack-node-externals')
const NodemonPlugin = require('nodemon-webpack-plugin')

module.exports = webpack => {
  return {
    target: 'node',
    devtool: 'cheap-module-source-map',
    mode: process.env.NODE_ENV === 'development' ? 'development' : 'production',
    entry: './src/index.ts',
    output: {
      path: path.resolve('./dist'),
      filename: 'server.js',
    },
    externals: nodeExternals(),
    module: {
      rules: [
        {
          exclude: /node_modules/,
          test: /\.graphql$/,
          use: [{ loader: 'graphql-import-loader' }],
        },
        {
          test: /\.t|jsx?$/,
          exclude: /(node_modules)/,
          use: [
            {
              loader: require.resolve('ts-loader'),
              options: {
                // disable type checker - we will use it in fork plugin
                transpileOnly: true,
                // https://github.com/TypeStrong/ts-loader#ignorediagnostics-number-default
              },
            },
          ],
          // options: {cacheDirectory: true},
        },
      ],
    },
    resolve: {
      mainFields: ['main', 'module'],
      extensions: ['.js', '.ts', '.json'],
    },
    plugins: [new NodemonPlugin()],
  }
}