/* eslint global-require:0 */
import _ from 'underscore';
import ReactTestUtils from 'react-addons-test-utils';

import Config from '../../src/config'
import N1SpecLoader from './n1-spec-loader'
import TimeReporter from './time-reporter'
import N1GuiReporter from './n1-gui-reporter';
import jasmineExports from './jasmine';
import ConsoleReporter from './console-reporter'
import MasterAfterEach from './master-after-each'
import MasterBeforeEach from './master-before-each'
import nylasTestConstants from './nylas-test-constants'
import * as jasmineExtensions from './jasmine-extensions'
import * as reactTestUtilsExtensions from './react-test-utils-extensions'

class N1SpecRunner {
  runSpecs(loadSettings) {
    this.loadSettings = loadSettings
    this._extendGlobalWindow();
    this._setupJasmine();
    this._setupNylasEnv();
    this._setupWindow();
    Object.assign(ReactTestUtils, reactTestUtilsExtensions)
    MasterBeforeEach.setup(this.loadSettings, jasmineExports.beforeEach)
    MasterAfterEach.setup(this.loadSettings, jasmineExports.afterEach)
    N1SpecLoader.loadSpecs(this.loadSettings, this.jasmineEnv);
    this.jasmineEnv.execute();
  }

  /**
   * Put jasmine methods on the global scope so they can be used anywhere
   * without importing jasmine.
   */
  _extendGlobalWindow() {
    Object.assign(window, {
      jasmine: jasmineExports.jasmine,

      it: jasmineExports.it,
      xit: jasmineExports.xit,
      runs: jasmineExports.runs,
      waits: jasmineExports.waits,
      spyOn: jasmineExports.spyOn,
      expect: jasmineExports.expect,
      waitsFor: jasmineExports.waitsFor,
      describe: jasmineExports.describe,
      xdescribe: jasmineExports.xdescribe,
      afterEach: jasmineExports.afterEach,
      beforeEach: jasmineExports.beforeEach,
      testNowMoment: jasmineExtensions.testNowMoment,
      waitsForPromise: jasmineExtensions.waitsForPromise,
    }, nylasTestConstants)

    this.jasmineEnv = jasmineExports.jasmine.getEnv();
  }

  _setupJasmine() {
    this._addReporters()
    this._initializeDOM()
    this._extendJasmineMethods();

    // On load, this will require "jasmine-focused" which looks up the
    // global `jasmine` object and extends onto it:
    // fdescribe, ffdescribe, fffdescribe, fit, ffit, fffit
    require('jasmine-tagged');

    // On load this will extend jasmine's `beforeEach`
    require('jasmine-json');
  }

  _setupNylasEnv() {
    // We need to mock the config even before `beforeEach` runs because it
    // gets accessed on module definitions
    const fakePersistedConfig = {env: 'production'};
    NylasEnv.config = new Config();
    NylasEnv.config.settings = fakePersistedConfig;

    NylasEnv.restoreWindowDimensions();
    NylasEnv.themes.loadBaseStylesheets();
    NylasEnv.themes.requireStylesheet('../static/jasmine');
    NylasEnv.themes.initialLoadComplete = true;
    NylasEnv.keymaps.loadKeymaps();
  }

  _setupWindow() {
    window.addEventListener('core:close', () => window.close());
    window.addEventListener('beforeunload', () => {
      NylasEnv.storeWindowDimensions();
      return NylasEnv.saveSync();
    });

    // On load this will extend the window object
    require('../../src/window');
  }

  _addReporters() {
    const timeReporter = new TimeReporter();
    const consoleReporter = new ConsoleReporter();

    // This needs to be `required` at runtime because terminal-reporter
    // depends on jasmine-tagged, which depends on jasmine-focused, which
    // on require will attempt to extend the `jasmine` object with
    // methods. The `jasmine` object has to be attached to the global
    // scope before it gets extended. This is done in
    // `_extendGlobalWindow`.
    const N1TerminalReporter = require('./terminal-reporter').default

    const terminalReporter = new N1TerminalReporter();

    if (NylasEnv.getLoadSettings().showSpecsInWindow) {
      this.jasmineEnv.addReporter(N1GuiReporter);
    } else {
      this.jasmineEnv.addReporter(terminalReporter);
    }
    this.jasmineEnv.addReporter(timeReporter);
    this.jasmineEnv.addReporter(consoleReporter);
  }

  _initializeDOM() {
    const div = document.createElement('div');
    div.id = 'jasmine-content';
    document.body.appendChild(div);
    document.querySelector('html').style.overflow = 'initial';
    document.querySelector('body').style.overflow = 'initial';
  }

  _extendJasmineMethods() {
    const jasmine = jasmineExports.jasmine;

    jasmine.getEnv().defaultTimeoutInterval = 250;

    // Use underscore's definition of equality for toEqual assertions
    jasmine.getEnv().addEqualityTester(_.isEqual);

    jasmine.unspy = jasmineExtensions.unspy
    jasmine.attachToDOM = jasmineExtensions.attachToDOM

    const origEmitObject = jasmine.StringPrettyPrinter.prototype.emitObject;
    jasmine.StringPrettyPrinter.prototype.emitObject = function emitObject(obj) {
      if (obj.inspect) {
        return this.append(obj.inspect());
      }
      return origEmitObject.call(this, obj);
    };
  }
}
export default new N1SpecRunner()