'use strict'
let wallabify = require('wallabify')
let babelify = require('babelify')
let babel = require('babel')
let es6ToEs5Preprocessor = file => babel
      .transform(file.content, {sourceMap: true, filename: file.path, stage: 2})

let wallabyPostProcessor = wallabify({
  entryPatterns: ['./src/**/*.spec.js']
},
function (b) {
  b.transform(babelify, {
    extensions: ['.jsx', '.js']
  })
})

module.exports = function (wallaby) {
  return {
    files: [
      {pattern: 'node_modules/babel-polyfill/dist/polyfill.js', instrument: false},
      {pattern: 'src/utils/karma.polyfill.js', instrument: false},
      {pattern: 'src/**/*.js', load: false},
      {pattern: 'src/**/*.jsx', load: false},
      {pattern: 'src/**/*.json', instrument: false},
      {pattern: 'src/**/*.spec.js', ignore: true}
    ],

    tests: [
      {pattern: './src/**/*.spec.js', load: false}
    ],

    postprocessor: wallabyPostProcessor,

    testFramework: 'jasmine',

    setup: function () {
      // required to trigger tests loading
      window.__moduleBundler.loadTests()
    },

    preprocessors: {
      'src/**/*.js': es6ToEs5Preprocessor,
      'src/**/*.spec.js': es6ToEs5Preprocessor,
      'src/**/*.jsx': es6ToEs5Preprocessor
    },

    compilers: {
      'src/**/*.js': wallaby.compilers.babel({
        stage: 2
      }),
      'src/**/*.spec.js': wallaby.compilers.babel({
        stage: 2
      }),
      'src/**/*.jsx': wallaby.compilers.babel({
        stage: 2
      })
    },

    debug: true
  }
}