/**
 * @license
 * Copyright Google Inc. All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

import {ɵAnimationEngine, ɵNoopAnimationStyleNormalizer} from '@angular/animations/browser';
import {MockAnimationDriver} from '@angular/animations/browser/testing';
import {NgZone, RendererFactory2} from '@angular/core';
import {NoopNgZone} from '@angular/core/src/zone/ng_zone';
import {EventManager, ɵDomRendererFactory2, ɵDomSharedStylesHost} from '@angular/platform-browser';
import {ɵAnimationRendererFactory} from '@angular/platform-browser/animations';
import {getDOM} from '@angular/platform-browser/src/dom/dom_adapter';
import {EventManagerPlugin} from '@angular/platform-browser/src/dom/events/event_manager';

export class SimpleDomEventsPlugin extends EventManagerPlugin {
  constructor(doc: any) { super(doc); }

  supports(eventName: string): boolean { return true; }

  addEventListener(element: HTMLElement, eventName: string, handler: Function): Function {
    let callback: EventListener = handler as EventListener;
    element.addEventListener(eventName, callback, false);
    return () => this.removeEventListener(element, eventName, callback);
  }

  removeEventListener(target: any, eventName: string, callback: Function): void {
    return target.removeEventListener.apply(target, [eventName, callback, false]);
  }
}

export function getRendererFactory2(document: any): RendererFactory2 {
  const fakeNgZone: NgZone = new NoopNgZone();
  const eventManager = new EventManager([new SimpleDomEventsPlugin(document)], fakeNgZone);
  const rendererFactory =
      new ɵDomRendererFactory2(eventManager, new ɵDomSharedStylesHost(document), 'dummyappid');
  const origCreateRenderer = rendererFactory.createRenderer;
  rendererFactory.createRenderer = function() {
    const renderer = origCreateRenderer.apply(this, arguments);
    renderer.destroyNode = () => {};
    return renderer;
  };
  return rendererFactory;
}

export function getAnimationRendererFactory2(document: any): RendererFactory2 {
  const fakeNgZone: NgZone = new NoopNgZone();
  return new ɵAnimationRendererFactory(
      getRendererFactory2(document),
      new ɵAnimationEngine(
          document.body, new MockAnimationDriver(), new ɵNoopAnimationStyleNormalizer()),
      fakeNgZone);
}

// TODO: code duplicated from ../linker/change_detection_integration_spec.ts, to be removed
// START duplicated code
export class RenderLog {
  log: string[] = [];
  loggedValues: any[] = [];

  setElementProperty(el: any, propName: string, propValue: any) {
    this.log.push(`${propName}=${propValue}`);
    this.loggedValues.push(propValue);
  }

  setText(node: any, value: string) {
    this.log.push(`{{${value}}}`);
    this.loggedValues.push(value);
  }

  clear() {
    this.log = [];
    this.loggedValues = [];
  }
}

/**
 * This function patches the DomRendererFactory2 so that it returns a DefaultDomRenderer2
 * which logs some of the DOM operations through a RenderLog instance.
 */
export function patchLoggingRenderer2(rendererFactory: RendererFactory2, log: RenderLog) {
  if ((<any>rendererFactory).__patchedForLogging) {
    return;
  }
  (<any>rendererFactory).__patchedForLogging = true;
  const origCreateRenderer = rendererFactory.createRenderer;
  rendererFactory.createRenderer = function() {
    const renderer = origCreateRenderer.apply(this, arguments);
    if ((<any>renderer).__patchedForLogging) {
      return renderer;
    }
    (<any>renderer).__patchedForLogging = true;
    const origSetProperty = renderer.setProperty;
    const origSetValue = renderer.setValue;
    renderer.setProperty = function(el: any, name: string, value: any): void {
      log.setElementProperty(el, name, value);
      origSetProperty.call(renderer, el, name, value);
    };
    renderer.setValue = function(node: any, value: string): void {
      if (getDOM().isTextNode(node)) {
        log.setText(node, value);
      }
      origSetValue.call(renderer, node, value);
    };
    return renderer;
  };
}
// END duplicated code
