import {Component, ElementRef, OnInit, ViewChild} from '@angular/core';
import {ActivatedRoute, Router} from '@angular/router';
import {HelpContentService} from '../../services/help-content.service';
import {FormBuilder, FormGroup, Validators} from '@angular/forms';
import {Portal} from '../../utils/entities/adminTool/portal';
import {EnvProperties} from '../../utils/properties/env-properties';
import {Session} from '../../login/utils/helper.class';
import {UserManagementService} from '../../services/user-management.service';
import {Subscriber} from "rxjs";
import {properties} from "../../../../environments/environment";
import {StringUtils} from "../../utils/string-utils.class";
import {Title} from "@angular/platform-browser";
import {AlertModal} from '../../utils/modal/alert';
import {CheckMenuItem, MenuItem} from '../../sharedComponents/menu';
import {SearchInputComponent} from '../../sharedComponents/search-input/search-input.component';

@Component({
  selector: 'menuSelector',
  templateUrl: './menu.component.html',
})
export class MenuComponent implements OnInit {
	
	@ViewChild('searchInputComponent') searchInputComponent: SearchInputComponent;
	@ViewChild('editModal') editModal: AlertModal;
	@ViewChild('deleteModal') deleteModal: AlertModal;
	private selectedMenuItems: string[] = [];

	public checkboxes: CheckMenuItem[] = [];

	// public menuItems: MenuItem[] = [];

	// public rootMenuForm: FormGroup;

	public activeRootMenu: string;

	public menuItemForm: FormGroup;
	public rootMenuItems = [];
	public menuItems = [];
	public allPages = [];

	public keyword = '';
  
  public communities: Portal[] = [];
  public portal: string;
  
  public properties: EnvProperties = properties;
  
	public newPageWindowOpen: boolean = false;
  public showLoading = true;
  public isPortalAdministrator = null;
  public filterForm: FormGroup;
	public typeOptions = [
		{label: 'Internal Link', value: 'internal'},
		{label: 'External Link', value: 'external'}
	]
	public selectedKeyword: string;
  private subscriptions: any[] = [];
  
  constructor(private element: ElementRef, private route: ActivatedRoute,
              private _router: Router, private title: Title,
              private _helpContentService: HelpContentService,
              private userManagementService: UserManagementService, private _fb: FormBuilder) {
  }
  
  ngOnInit() {
		this.filterForm = this._fb.group({
			keyword: [''],
			status: ['resources', Validators.required]
		});
    this.userManagementService.getUserInfo().subscribe(user => {
      this.portal = (this.route.snapshot.data.portal) ? this.route.snapshot.data.portal : this.route.snapshot.params[this.route.snapshot.data.param];
      if (this.route.snapshot.data.portal) {
        this.title.setTitle(StringUtils.capitalize(this.portal) + ' | Menu');
      } else if (this.route.snapshot.params[this.route.snapshot.data.param]) {
        this.title.setTitle(this.portal.toUpperCase() + ' | Menu');
      } else {
        this.title.setTitle('Administrator Dashboard | Menu');
      }
      this.isPortalAdministrator = Session.isPortalAdministrator(user) && !this.portal;
    });
    this.showLoading = false;
		this.getMenuItems();
		this.getPages();
  }
  
  ngOnDestroy(): void {
    this.subscriptions.forEach(value => {
      if (value instanceof Subscriber) {
        value.unsubscribe();
      } else if (value instanceof Function) {
        value();
      }
    });
  }

	getMenuItems() {
		this.subscriptions.push(
			this._helpContentService.getMenuItems(this.portal).subscribe(
				data => {
					console.log(data);
					this.rootMenuItems = data;
					if(data && data.length > 0) {
						this.activeRootMenu = data[0]['_id'];
						console.log(this.activeRootMenu);
					}
				},
				err => console.error("Server error fetching menu items: ", err)
			)
		);
	}

	getActiveRootItem(id: string): MenuItem {
		return this.rootMenuItems.find(element => element['_id'] == id);
	}

	getPages() {
		this.subscriptions.push(
			this._helpContentService.getAllPages(this.properties.adminToolsAPIURL,this.portal).subscribe(
				data => {
					let pages = data;
					this.allPages = [];
					for(let i = 0; i < pages.length; i++) {
						if(pages[i] && pages[i].name && pages[i].route) {
							this.allPages.push({value: pages[i].route, label: pages[i].name});
						}
					}
				},
				err => console.error("Server error fetching pages: ", err)
			)
		);
	}

	public newRootMenu() {
		this.menuItemForm = this._fb.group({
			id: this._fb.control(""),
			title: this._fb.control("",Validators.required),
			type: this._fb.control(""),
      route: this._fb.control(""),
			url: this._fb.control(""),
      isEnabled: this._fb.control(""),
		});
		this.menuItemsModalOpen('Create Root Menu', 'Save Changes');
	}

	public editRootMenu() {
		this.menuItemForm = this._fb.group({
			id: this._fb.control("id"),
			title: this._fb.control("Resources",Validators.required),
			type: this._fb.control("",Validators.required),
      route: this._fb.control("noNeed"),
			url: this._fb.control("noNeed"),
      isEnabled: this._fb.control("enabled",Validators.required),
		});
		this.menuItemsModalOpen('Edit Root Menu', 'Save Changes');
	}

	public deleteRootMenu() {
		console.log('Delete root menu');
	}

	public getSelectedMenuItems(): string[] {
		return this.checkboxes.filter(menuItem => menuItem.checked == true).map(checkedMenuItem => checkedMenuItem.menuItem).map(res => res.id);
	}

	public confirmDeleteSelectedMenuItems() {
    this.selectedMenuItems = this.getSelectedMenuItems();
    this.confirmModalOpen();
  }

	private confirmModalOpen() {
    this.deleteModal.cancelButton = true;
    this.deleteModal.okButton = true;
    this.deleteModal.alertTitle = 'Delete Confirmation';
    this.deleteModal.message = 'Are you sure you want to delete the selected menu item(s)?';
    this.deleteModal.okButtonText = 'Yes';
    this.deleteModal.open();
  }

	public newMenuItem() {
		this.menuItemForm = this._fb.group({
			id: this._fb.control(""),
			title: this._fb.control("",Validators.required),
			type: this._fb.control("",Validators.required),
      route: this._fb.control(""),
			url: this._fb.control(""),
      isEnabled: this._fb.control("",Validators.required),
		});
		this.menuItemsModalOpen('Create Menu Item', 'Save Changes');
	}
  
	public editMenuItem() {
		this.menuItemForm = this._fb.group({
			id: this._fb.control("id"),
      title: this._fb.control("HardcodedName",Validators.required),
			type: this._fb.control("internal",Validators.required),
      route: this._fb.control("routeAlex"),
			url: this._fb.control("urlAlex"),
      isEnabled: this._fb.control("enabled",Validators.required),
		});
		this.menuItemsModalOpen('Edit Menu Item', 'Save Changes');
	}

	public deleteMenuItem() {
		console.log('Delete menu item');
	}

	public newPageWindow() {
		this.newPageWindowOpen = !this.newPageWindowOpen;
	}

	private menuItemsModalOpen(title: string, yesBtn: string) {
		this.editModal.cancelButton = true;
		this.editModal.okButton = true;
		this.editModal.okButtonLeft = false;
		this.editModal.alertTitle = title;
		this.editModal.okButtonText = yesBtn;
		this.editModal.open();
	}

	public toggleMenuItems(status: boolean, ids: string[]) {

	}

	public onSearchClose() {
    this.selectedKeyword = this.filterForm.get('keyword').value;
  }
  
  public reset() {
    this.selectedKeyword = null;
    this.searchInputComponent.reset();
  }

	selectAll() {
		let checked = this.getSelectedMenuItems().length != this.checkboxes.length;
    for (let check of this.checkboxes) {
      check.checked = checked;
    }
	}
}