import { Section } from '../../models/Section';
import { JsonSerializer } from '../../utilities/JsonSerializer';
import { Rule } from '../../models/Rule';
import { DatasetWizardService } from '../../services/dataset-wizard/dataset-wizard.service';
import { BaseHttpService } from '../../utilities/cite-http-service-module/base-http.service';
import { VisibilityRulesService } from '../../utilities/visibility-rules/visibility-rules.service';
import { DatasetProfileDefinitionModel } from '../../models/DatasetProfileDefinitionModel';
import { DatasetWizardModel } from '../../models/datasets/DatasetWizardModel';
import { Component, Input, OnInit, AfterViewChecked, ViewChild, forwardRef, ViewEncapsulation, AfterViewInit, ChangeDetectionStrategy } from '@angular/core';
import { FormGroup, Validators, ControlValueAccessor, NG_VALUE_ACCESSOR } from '@angular/forms';
import { NgForm } from '@angular/forms';
import { Router, ActivatedRoute, ParamMap, Params } from '@angular/router';
import 'rxjs/add/operator/switchMap';
import { Location } from '@angular/common';
import { MatSidenavModule } from '@angular/material/sidenav';

declare function simple_notifier(type: string, title: string, message: string): any;

@Component({
  selector: 'dynamic-form',
  templateUrl: './dynamic-form.component.html',
  styleUrls: [
    './dynamic-form.component.scss'
  ],
  providers: [
  ],
  encapsulation: ViewEncapsulation.None,
})
export class DynamicFormComponent implements OnInit, AfterViewInit {


  @Input() dataModel: DatasetWizardModel = new DatasetWizardModel();
  @Input() path: string;
  @Input() form: FormGroup;
  id: string;
  trackByFn = (index, item) => item ? item["id"] : null
  pageTrackByFn = (index, item) => item["id"]

  // @Input() datasetId: string;
  pathName: string;
  pages: Array<number>;
  activeStepperIndex: number = 1;
  visibleSidebar: boolean = false;
  datasetProfileDefinitionModel: DatasetProfileDefinitionModel
  private progressbar: boolean = false;
  private currentPageIndex: number = 0;

  private fragment: string;
  constructor(private router: Router,
    private _location: Location,
    private route: ActivatedRoute,
    private visibilityRulesService: VisibilityRulesService,
    private http: BaseHttpService,
    private datasetWizardService: DatasetWizardService,
  ) {
    //this.datasetId = route.snapshot.params['id'];
  }

  getSubForm(subformName) {
    return this.form.controls[subformName];
  }


  ngOnInit() {

    let rules: Rule[] = JsonSerializer.fromJSONArray(this.dataModel.datasetProfileDefinition.rules, Rule);
    this.visibilityRulesService.formGroup = this.form;
    this.visibilityRulesService.buildVisibilityRules(rules)
    this.datasetProfileDefinitionModel = this.dataModel.datasetProfileDefinition
    this.visibilityRulesService.setModel(this.datasetProfileDefinitionModel)
    this.createPagination();
    this.progressbar = true;

    this.route.fragment.subscribe((fragment: string) => {
      var self = this;
      setTimeout(function () { self.scrollTo(fragment) });
    });

    this.route.queryParams.subscribe((params) => {
      if (params && "page" in params)
        this.changeCurrentPage(params["page"]);
    });
  }

  ngAfterViewInit() {
    this.visibilityRulesService.triggerVisibilityEvaluation()
  }


  toggleSidebar() {
    this.visibleSidebar = !this.visibleSidebar;
  }

  // getPages(model: DatasetProfileDefinitionModel): Array<number> {
  //   let pageSet = new Set<number>();

  //   model.sections.forEach(section => {
  //     pageSet.add(section.page);
  //   });

  //   return Array.from(pageSet).sort((a, b) => a - b);
  // }

  shouldDisplaySection(section: Section): Boolean {
    return (section.page) == this.currentPageIndex;
  }

  createPagination() {
    /*this.pages.forEach(item => {
       this.stepperItems.push({
         label: '',
       })
    });*/
  }

  changePageIndex(index: any) {
    this.router.navigate([this.route.snapshot.url[0] + "/" + this.route.snapshot.url[1]], { queryParams: { page: this.pages[index - 1] } });
  }

  scrollTo(sectionID: string) {
    if (!sectionID) return;
    var element = document.querySelector('#' + sectionID);
    if (!element) return;
    element.scrollIntoView();
    this.visibleSidebar = true;
    var scrollElement = document.querySelector('.scrollableContent');
    //scrollElement.scrollTop = topElement.offsetTop;
  }

  changeCurrentPage(pageString: string) {
    if (!pageString) return;
    var page = parseInt(pageString);
    if (isNaN(page)) return;
    var pageIndex = this.pages.indexOf(page);
    if (pageIndex === -1) return;
    this.currentPageIndex = page;
  }
}