'use strict';
const Funnel = require('broccoli-funnel');
const EmberApp = require('ember-cli/lib/broccoli/ember-app');
module.exports = function(defaults) {
  const env = EmberApp.env();
  const prodlike = ['production', 'staging'];
  const isProd = env === 'production';
  const isProdLike = prodlike.indexOf(env) > -1;
  const sourcemaps = !isProd;
  let trees = {};
  if(isProdLike) {
    // exclude any component/pageobject.js files from production-like environments
    trees.app = new Funnel(
      'app',
      {
        exclude: [
          'components/**/pageobject.js',
          'components/**/*.test-support.js',
          'components/**/*.test.js'
        ]
      }
    );
  }
  let app = new EmberApp(
    Object.assign({}, defaults, {
      productionEnvironments: prodlike,
    }),
    {
      trees: trees,
      'ember-cli-babel': {
        includePolyfill: true,
      },
      'ember-cli-string-helpers': {
        only: [
          'capitalize',
          'lowercase',
          'truncate',
          'uppercase',
          'humanize',
          'titleize'
        ],
      },
      'ember-cli-math-helpers': {
        only: ['div'],
      },
      babel: {
        plugins: ['@babel/plugin-proposal-object-rest-spread'],
        sourceMaps: sourcemaps ? 'inline' : false,
      },
      codemirror: {
        keyMaps: ['sublime'],
        addonFiles: [
          'lint/lint.css',
          'lint/lint.js',
          'lint/json-lint.js',
          'lint/yaml-lint.js',
          'mode/loadmode.js',
        ],
      },
      'ember-cli-uglify': {
        uglify: {
          compress: {
            keep_fargs: false,
          },
        },
      },
      sassOptions: {
        implementation: require('sass'),
        sourceMapEmbed: sourcemaps,
      },
      autoprefixer: {
        sourcemap: sourcemaps,
        grid: true,
        browsers: ['defaults', 'ie 11'],
      },
    }
  );
  // Use `app.import` to add additional libraries to the generated
  // output files.
  //
  // If you need to use different assets in different
  // environments, specify an object as the first parameter. That
  // object's keys should be the environment name and the values
  // should be the asset to use in that environment.
  //
  // If the library that you are including contains AMD or ES6
  // modules that you would like to import into your application
  // please specify an object with the list of modules as keys
  // along with the exports of each module as its value.

  // TextEncoder/Decoder polyfill. See assets/index.html
  app.import('node_modules/text-encoding/lib/encoding.js', {
    outputFile: 'assets/encoding.js',
  });
  app.import('node_modules/text-encoding/lib/encoding-indexes.js', {
    outputFile: 'assets/encoding-indexes.js',
  });

  // CSS.escape polyfill
  app.import('node_modules/css.escape/css.escape.js', { outputFile: 'assets/css.escape.js' });

  // JSON linting support. Possibly dynamically loaded via CodeMirror linting. See components/code-editor.js
  app.import('node_modules/jsonlint/lib/jsonlint.js', {
    outputFile: 'assets/codemirror/mode/javascript/javascript.js',
  });
  app.import('node_modules/codemirror/mode/javascript/javascript.js', {
    outputFile: 'assets/codemirror/mode/javascript/javascript.js',
  });

  // HCL/Ruby linting support. Possibly dynamically loaded via CodeMirror linting. See components/code-editor.js
  app.import('node_modules/codemirror/mode/ruby/ruby.js', {
    outputFile: 'assets/codemirror/mode/ruby/ruby.js',
  });

  // YAML linting support. Possibly dynamically loaded via CodeMirror linting. See components/code-editor.js
  app.import('node_modules/js-yaml/dist/js-yaml.js', {
    outputFile: 'assets/codemirror/mode/yaml/yaml.js',
  });
  app.import('node_modules/codemirror/mode/yaml/yaml.js', {
    outputFile: 'assets/codemirror/mode/yaml/yaml.js',
  });
  // metrics-providers
  app.import('vendor/metrics-providers/consul.js', {
    outputFile: 'assets/metrics-providers/consul.js',
  });
  app.import('vendor/metrics-providers/prometheus.js', {
    outputFile: 'assets/metrics-providers/prometheus.js',
  });
  let tree = app.toTree();
  return tree;
};