/**
 * @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 {NgIf} from '@angular/common';
import {Component, NgModule, TemplateRef, ViewContainerRef, ViewEncapsulation} from '@angular/core';
import {BindingType, DefaultServices, NodeFlags, NodeUpdater, ViewData, ViewDefinition, ViewFlags, anchorDef, asElementData, asProviderData, checkAndUpdateView, createRootView, elementDef, providerDef, textDef, viewDef} from '@angular/core/src/view/index';
import {DomSanitizer, DomSanitizerImpl, SafeStyle} from '@angular/platform-browser/src/security/dom_sanitization_service';

import {TreeNode, emptyTree} from '../util';

let trustedEmptyColor: SafeStyle;
let trustedGreyColor: SafeStyle;

export class TreeComponent {
  data: TreeNode = emptyTree;
  get bgColor() { return this.data.depth % 2 ? trustedEmptyColor : trustedGreyColor; }
}

let viewFlags = ViewFlags.DirectDom;

const TreeComponent_Host: ViewDefinition = viewDef(viewFlags, [
  elementDef(NodeFlags.None, null, 1, 'tree'),
  providerDef(NodeFlags.None, null, 0, TreeComponent, [], null, null, () => TreeComponent_0),
]);

const TreeComponent_1: ViewDefinition = viewDef(
    viewFlags,
    [
      elementDef(NodeFlags.None, null, 1, 'tree'),
      providerDef(
          NodeFlags.None, null, 0, TreeComponent, [], {data: [0, 'data']}, null,
          () => TreeComponent_0),
    ],
    (updater: NodeUpdater, view: ViewData) => {
      const cmp = view.component;
      updater.checkInline(view, 1, cmp.data.left);
    });

const TreeComponent_2: ViewDefinition = viewDef(
    viewFlags,
    [
      elementDef(NodeFlags.None, null, 1, 'tree'),
      providerDef(
          NodeFlags.None, null, 0, TreeComponent, [], {data: [0, 'data']}, null,
          () => TreeComponent_0),
    ],
    (updater: NodeUpdater, view: ViewData) => {
      const cmp = view.component;
      updater.checkInline(view, 1, cmp.data.right);
    });

const TreeComponent_0: ViewDefinition = viewDef(
    viewFlags,
    [
      elementDef(
          NodeFlags.None, null, 1, 'span', null,
          [[BindingType.ElementStyle, 'backgroundColor', null]]),
      textDef([' ', ' ']),
      anchorDef(NodeFlags.HasEmbeddedViews, null, 1, TreeComponent_1),
      providerDef(
          NodeFlags.None, null, 0, NgIf, [ViewContainerRef, TemplateRef], {ngIf: [0, 'ngIf']}),
      anchorDef(NodeFlags.HasEmbeddedViews, null, 1, TreeComponent_2),
      providerDef(
          NodeFlags.None, null, 0, NgIf, [ViewContainerRef, TemplateRef], {ngIf: [0, 'ngIf']}),
    ],
    (updater: NodeUpdater, view: ViewData) => {
      const cmp = view.component;
      updater.checkInline(view, 0, cmp.bgColor);
      updater.checkInline(view, 1, cmp.data.value);
      updater.checkInline(view, 3, cmp.data.left != null);
      updater.checkInline(view, 5, cmp.data.right != null);
    });

export class AppModule {
  public rootComp: TreeComponent;
  public rootEl: any;
  private rootView: ViewData;
  private sanitizer: DomSanitizer;

  constructor() {
    this.sanitizer = new DomSanitizerImpl();
    trustedEmptyColor = this.sanitizer.bypassSecurityTrustStyle('');
    trustedGreyColor = this.sanitizer.bypassSecurityTrustStyle('grey');
  }
  bootstrap() {
    this.rootView = createRootView(new DefaultServices(null, this.sanitizer), TreeComponent_Host);
    this.rootComp = asProviderData(this.rootView, 1).instance;
    this.rootEl = asElementData(this.rootView, 0).renderElement;
  }
  tick() { checkAndUpdateView(this.rootView); }
}