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import {Component, ElementRef, OnInit, ViewChild} from '@angular/core';
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import {ActivatedRoute, Router} from "@angular/router";
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import {HelpContentService} from "../../services/help-content.service";
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import {FormArray, FormBuilder, FormGroup, Validators} from "@angular/forms";
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import {CheckDivId, DivId} from "../../utils/entities/adminTool/divId";
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import {Page} from "../../utils/entities/adminTool/page";
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import {EnvProperties} from '../../utils/properties/env-properties';
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import {HelperFunctions} from "../../utils/HelperFunctions.class";
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import {Subscriber} from "rxjs";
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import {properties} from "../../../../environments/environment";
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import {PortalUtils} from "../portal/portalHelper";
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import {AlertModal} from "../../utils/modal/alert";
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import {Option} from "../../sharedComponents/input/input.component";
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import {SearchInputComponent} from "../../sharedComponents/search-input/search-input.component";
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import {Title} from "@angular/platform-browser";
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declare var UIkit;
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@Component({
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  selector: 'divIds',
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  templateUrl: './divIds.component.html',
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})
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export class DivIdsComponent implements OnInit {
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  @ViewChild('editModal') editModal: AlertModal;
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  @ViewChild('deleteModal') deleteModal: AlertModal;
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  private selectedDivIds: string[] = [];
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  public checkboxes: CheckDivId[] = [];
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  public divIds: DivId[] = [];
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  public classForm: FormGroup;
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  public pagesCtrl: FormArray;
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  private searchText: RegExp = new RegExp('');
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  public keyword: string = "";
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  public properties: EnvProperties = properties;
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  public formPages: Page[] = [];
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  public showLoading: boolean = true;
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  public filterForm: FormGroup;
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  private subscriptions: any[] = [];
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  public allPages: Option[] = [];
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  selectedCommunityPid = null;
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  public portalUtils: PortalUtils = new PortalUtils();
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  private index: number;
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  public selectedKeyword: string;
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  @ViewChild('searchInputComponent') searchInputComponent: SearchInputComponent;
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  constructor(private element: ElementRef, private route: ActivatedRoute, private _router: Router,
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              private title: Title,
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              private _helpContentService: HelpContentService, private _fb: FormBuilder) {
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  }
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  ngOnInit() {
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    this.title.setTitle('Administrator Dashboard | Classes');
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    this.filterForm = this._fb.group({
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      keyword: [''],
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      type: ['all', Validators.required]
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    });
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    this.subscriptions.push(this.filterForm.get('keyword').valueChanges.subscribe(value => {
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      this.searchText = new RegExp(value, 'i');
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      this.applyFilters();
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    }));
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    this.subscriptions.push(this.filterForm.get('type').valueChanges.subscribe(value => {
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      this.applyFilters();
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    }));
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    this.getDivIds();
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    this.subscriptions.push(this.route.queryParams.subscribe(params => {
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      HelperFunctions.scroll();
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      this.selectedCommunityPid = params['communityId'];
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      this.getPages();
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    }));
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  }
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  ngOnDestroy(): void {
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    this.subscriptions.forEach(value => {
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      if (value instanceof Subscriber) {
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        value.unsubscribe();
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      } else if (value instanceof Function) {
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        value();
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      }
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    });
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  }
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  getDivIds() {
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    this.showLoading = true;
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    this.subscriptions.push(this._helpContentService.getAllDivIdsFull(this.properties.adminToolsAPIURL).subscribe(
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      divIds => {
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        this.divIds = divIds;
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        this.checkboxes = [];
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        let self = this;
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        divIds.forEach(_ => {
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          self.checkboxes.push(<CheckDivId>{divId: _, checked: false});
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        });
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        this.showLoading = false;
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      },
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      error => this.handleError('System error retrieving classes', error)));
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  }
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  // public showModal():void {
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  //     this.modal.showModal();
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  // }
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  public toggleCheckBoxes(event) {
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    this.checkboxes.forEach(_ => _.checked = event.target.checked);
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  }
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  public applyCheck(flag: boolean) {
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    this.checkboxes.forEach(_ => _.checked = flag);
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  }
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  public getSelectedDivIds(): string[] {
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    return this.checkboxes.filter(divId => divId.checked == true).map(checkedDivId => checkedDivId.divId).map(res => res._id);
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  }
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  private deleteDivIdsFromArray(ids: string[]): void {
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    for (let id of ids) {
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      let i = this.divIds.findIndex(_ => _._id == id);
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      this.divIds.splice(i, 1);
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    }
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    this.applyFilters();
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  }
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  public confirmDeleteDivId(id: string) {
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    this.selectedDivIds = [id];
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    this.confirmModalOpen();
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  }
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  public confirmDeleteSelectedDivIds() {
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    this.selectedDivIds = this.getSelectedDivIds();
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    this.confirmModalOpen();
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  }
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  private confirmModalOpen() {
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    this.deleteModal.cancelButton = true;
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    this.deleteModal.okButton = true;
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    this.deleteModal.alertTitle = "Delete Confirmation";
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    this.deleteModal.message = "Are you sure you want to delete the selected class(es)?";
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    this.deleteModal.okButtonText = "Yes";
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    this.deleteModal.open();
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  }
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  public confirmedDeleteDivIds(data: any) {
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    this.showLoading = true;
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    this.subscriptions.push(this._helpContentService.deleteDivIds(this.selectedDivIds, this.properties.adminToolsAPIURL).subscribe(
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      _ => {
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        this.deleteDivIdsFromArray(this.selectedDivIds);
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        UIkit.notification('Classes have been <b>successfully deleted</b>', {
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          status: 'success',
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          timeout: 6000,
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          pos: 'bottom-right'
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        });
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        this.showLoading = false;
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      },
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      error => this.handleUpdateError('System error deleting the selected classes', error)
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    ));
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  }
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  public editDivId(i: number) {
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    let divId: DivId = this.checkboxes[i].divId;
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    this.index = this.divIds.findIndex(value => value._id === divId._id);
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    this.formPages = <Page[]>divId.pages;
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    this.pagesCtrl = this._fb.array([], Validators.required);
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    this.classForm = this._fb.group({
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      _id: this._fb.control(divId._id),
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      name: this._fb.control(divId.name, Validators.required),
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      pages: this.pagesCtrl,
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      portalType: this._fb.control(divId.portalType, Validators.required)
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    });
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    this.classForm.get('portalType').disable();
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    for (let i = 0; i < divId.pages.length; i++) {
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      this.pagesCtrl.push(this._fb.control(divId.pages[i]));
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    }
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    this.divIdsModalOpen("Edit class", "Save Changes");
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  }
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  public newDivId() {
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    this.pagesCtrl = this._fb.array([], Validators.required);
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    if (this.classForm) {
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      this.classForm.get('portalType').enable();
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    }
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    this.classForm = this._fb.group({
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      _id: this._fb.control(null),
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      name: this._fb.control('', Validators.required),
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      pages: this.pagesCtrl,
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      portalType: this._fb.control('', Validators.required)
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    });
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    this.divIdsModalOpen("Create class", "Create");
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  }
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  private divIdsModalOpen(title: string, yesBtn: string) {
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    this.editModal.cancelButton = true;
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    this.editModal.okButton = true;
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    this.editModal.okButtonLeft = false;
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    this.editModal.alertTitle = title;
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    this.editModal.okButtonText = yesBtn;
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    this.editModal.open();
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  }
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  public divIdSaveConfirmed(data: any) {
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    this.showLoading = true;
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    if (!this.classForm.value._id) {
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      this.subscriptions.push(this._helpContentService.saveDivId(<DivId>this.classForm.value, this.properties.adminToolsAPIURL).subscribe(
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        divId => {
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          this.divIdSavedSuccessfully(divId);
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          UIkit.notification('Class <b>' + divId.name + '</b> has been <b>successfully created</b>', {
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            status: 'success',
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            timeout: 6000,
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            pos: 'bottom-right'
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          });
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        },
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        error => this.handleUpdateError("System error creating class", error)
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      ));
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    } else {
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      this.classForm.get('portalType').enable();
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      this.subscriptions.push(this._helpContentService.updateDivId(<DivId>this.classForm.value, this.properties.adminToolsAPIURL).subscribe(
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        divId => {
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          this.divIdUpdatedSuccessfully(divId);
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          UIkit.notification('Class <b>' + divId.name + '</b> has been <b>successfully updated</b>', {
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            status: 'success',
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            timeout: 6000,
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            pos: 'bottom-right'
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          });
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        },
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        error => this.handleUpdateError("System error updating class", error)
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      ));
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    }
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  }
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  public divIdSavedSuccessfully(divId: DivId) {
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    this.divIds.push(divId);
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    this.applyFilters();
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    this.applyCheck(false);
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    this.showLoading = false;
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  }
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  public divIdUpdatedSuccessfully(divId: DivId) {
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    this.divIds[this.index] = divId;
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    this.applyFilters();
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    this.applyCheck(false);
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    this.showLoading = false;
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  }
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  public applyFilters() {
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    this.checkboxes = [];
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    this.divIds.filter(item => this.filterByType(item)).forEach(
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      item => this.checkboxes.push(<CheckDivId>{divId: item, checked: false})
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    );
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    this.checkboxes = this.checkboxes.filter(item => this.filterDivIds(item.divId));
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  }
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  public filterByType(divId: DivId): boolean {
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    let type = this.filterForm.get("type").value;
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    return type == "all" || (type == divId.portalType);
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  }
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  public filterDivIds(divId: DivId): boolean {
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    let textFlag = this.searchText.toString() == '' || (divId.name + ' ' + divId.portalType).match(this.searchText) != null;
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    return textFlag;
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  }
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  handleUpdateError(message: string, error) {
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    if (error == null) {
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      // this.formComponent.reset();
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    } else {
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      UIkit.notification(message, {
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        status: 'danger',
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        timeout: 6000,
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        pos: 'bottom-right'
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      });
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      console.log('Server responded: ' + error);
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    }
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    this.showLoading = false;
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  }
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  handleError(message: string, error) {
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    UIkit.notification(message, {
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      status: 'danger',
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      timeout: 6000,
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      pos: 'bottom-right'
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    });
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    console.log('Server responded: ' + error);
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    this.showLoading = false;
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  }
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  getPages() {
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    this.showLoading = true;
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    this.subscriptions.push(this._helpContentService.getAllPages(this.properties.adminToolsAPIURL).subscribe(
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      pages => {
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        this.allPages = [];
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        pages.forEach(page => {
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          this.allPages.push({
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            label: page.name + " [" + page.portalType + "]",
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            value: page
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          });
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        });
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        this.showLoading = false;
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      },
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      error => this.handleError('System error retrieving pages', error)
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    ));
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  }
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  public onSearchClose() {
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    this.selectedKeyword = this.filterForm.get('keyword').value;
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  }
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  public reset() {
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    this.selectedKeyword = null;
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    this.searchInputComponent.reset()
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  }
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}
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