import * as path from 'path';
import CleanWebpackPlugin from 'clean-webpack-plugin';
import * as webpack from 'webpack';
import * as merge from 'webpack-merge';
import { getReleaseChannel } from './dist-info';
import { getReplacements } from './app-info';

const channel = getReleaseChannel();

export const externals = ['7zip'];
if (channel === 'development') {
  externals.push('devtron');
}

const outputDir = 'dist';
const tsConfigBase = '../tsconfig.json';

const atlConfig = {
  configFileName: tsConfigBase
};

export const replacements = getReplacements();

const commonConfig: webpack.Configuration = {
  optimization: {
    noEmitOnErrors: true
  },
  externals: externals,
  output: {
    filename: '[name].js',
    path: path.resolve(__dirname, '..', outputDir),
    libraryTarget: 'commonjs2'
  },
  module: {
    rules: [
      {
        test: /\.tsx?$/,
        include: path.resolve(__dirname, '../src'),
        use: [
          {
            loader: 'awesome-typescript-loader?' + JSON.stringify(atlConfig),
            options: {
              useCache: true
            }
          }
        ],
        exclude: /node_modules/
      },
      {
        test: /\.json$/,
        loader: 'json-loader'
      },
      {
        test: /\.node$/,
        loader: 'awesome-node-loader',
        options: {
          name: '[name].[ext]'
        }
      }
    ]
  },
  plugins: [
    new CleanWebpackPlugin({ verbose: false }),
    // This saves us a bunch of bytes by pruning locales (which we don't use)
    // from moment.
    new webpack.IgnorePlugin(/^\.\/locale$/, /moment$/)
  ],
  resolve: {
    extensions: ['.js', '.ts', '.tsx'],
    modules: [path.resolve(__dirname, '../node_modules/')]
  },
  node: {
    __dirname: false,
    __filename: false
  }
};

export const main = merge({}, commonConfig, {
  entry: { main: path.resolve(__dirname, '../src/main') },
  target: 'electron-main',
  plugins: [
    new webpack.DefinePlugin(
      Object.assign({}, replacements, {
        __PROCESS_KIND__: JSON.stringify('main')
      })
    )
  ]
});