'use strict';

const fs = require('fs');
const path = require('path');
const paths = require('./paths');
const originalConfig = require('./webpack.config.dev.original');

const ROOT = path.join(__dirname, '../../../..');
const UI_ROOT = path.join(ROOT, 'ui');
const FRONTEND_ROOT = process.env.NODE_ENV === 'production'
  ? path.join(__dirname, '../')
  : path.join(ROOT, 'frontend');

const MODULES = [
  path.join(FRONTEND_ROOT, 'node_modules'),
  path.join(UI_ROOT, 'node_modules'),
  'node_modules'
];
const FRONTEND = path.join(FRONTEND_ROOT, 'src');
const UI = process.env.NODE_ENV === 'production'
  ? path.join(FRONTEND_ROOT, 'node_modules', '@tomgco/joyent-portal-ui', 'dist')
  : path.join(UI_ROOT, 'src');
const STATIC = path.join(FRONTEND_ROOT, 'static');
const ESLINT = path.join(__dirname, '.eslintrc');

const rules = originalConfig.module.rules.reduce((loaders, loader, index) => {
  if(index === 3) {
    loaders.push({
      test: loader.test,
      include: [loader.include, UI],
      loader: loader.loader,
      options: {
        babelrc: false,
        presets: [require.resolve('babel-preset-react-app')],
        plugins: [['inline-react-svg', {
          ignorePattern: 'libre-franklin'
        }]],
        cacheDirectory: true
      }
    })
  }
  else if(index === 1) {
    loaders.push({
      exclude: loader.exclude.concat([/\.(graphql|gql)$/]),
      loader: loader.loader,
      options: loader.options
    })
  }
  else if(loader.include) {
    loaders.push(Object.assign({}, loader, {include: [loader.include, UI]}));
  }
  else {
    loaders.push(loader);
  }
  return loaders;
}, []);

rules.push({
  test: /\.(graphql|gql)$/,
  exclude: /node_modules/,
  loader: require.resolve('graphql-tag/loader')
});

const aliases = Object.assign({}, originalConfig.resolve.alias, fs.readdirSync(FRONTEND)
  .map((name) => path.join(FRONTEND, name))
  .filter((fullpath) => fs.statSync(fullpath).isDirectory())
  .reduce((aliases, fullpath) => Object.assign(aliases, {
    [`@${path.basename(fullpath)}`]: fullpath
  }), {
    '@root': FRONTEND,
    '@ui': UI
  }));

const resolveModules = originalConfig.resolve.modules.concat(MODULES);

originalConfig.module.rules = rules;
originalConfig.resolve.alias = aliases;
originalConfig.resolve.modules = resolveModules;
originalConfig.resolve.plugins = [];

module.exports = originalConfig;