import {Component, Input, OnDestroy, OnInit} from '@angular/core';
import {ActivatedRoute, Router} from '@angular/router';
import {Session, User} from '../login/utils/helper.class';
import {ConfigurationService} from '../utils/configuration/configuration.service';
import {MenuItem, RootMenuItem} from './menu';
import {EnvProperties} from '../utils/properties/env-properties';
import {Subscription} from 'rxjs';
import {HelpContentService} from '../services/help-content.service';

export interface Header {
  route?: string,
  url?: string,
  title: string,
  logoUrl: string,
  logoSmallUrl: string,
  position: 'left' | 'center' | 'right',
  badge: boolean
  stickyAnimation?: boolean
}

@Component({
  selector: 'navbar',
  templateUrl: 'navigationBar.component.html'
})
export class NavigationBarComponent implements OnInit, OnDestroy {
  @Input() portal: string = 'connect';
  @Input() dark: boolean = false;
  @Input() onlyTop: boolean;
  @Input() logoPath: string = 'assets/common-assets/';
  @Input() userMenu: boolean = true;
  @Input() showHomeMenuItem: boolean = false;
  @Input() communityId;
  @Input() showCommunityName: boolean = false;
  @Input() userMenuItems: MenuItem[];
  @Input() menuItems: RootMenuItem [];
  @Input() header: Header;
  @Input() showMenu: boolean = true;
  @Input() homeurl: boolean = true;
  @Input() properties: EnvProperties;
  @Input() user: User;
  @Input() enableSearch: boolean = false;
  @Input() searchRoute: string = '/search/find';
  @Input() searchPlaceHolder: string = 'Search for research results';
  @Input() showLogo: boolean = true;
  @Input() offCanvasFlip: boolean = false;
  keyword: string = '';
  public isAuthorized: boolean = false;
  subs: Subscription[] = [];
  showEntity = {};
  showPage = {};
  specialAnnouncementContent: string = null;
  
	public customMenuItems: MenuItem[] = [];
  
  constructor(private router: Router,
              private  route: ActivatedRoute,
              private config: ConfigurationService,
							private _helpContentService: HelpContentService) {
  }

  ngOnInit() {
    this.initialize();
  }
  
  ngOnDestroy() {
    for (let sub of this.subs) {
      sub.unsubscribe();
    }
  }
  
  initialize() {
    if ((['provide', 'develop']).indexOf(this.portal) != -1) {
      this.header = {
        route: '/',
        url: null,
        title: this.portal,
        logoUrl: this.logoPath + 'logo-large-' + this.portal + '.png',
        logoSmallUrl: this.logoPath + 'logo-small-' + this.portal + '.png',
        position: 'left',
        badge: true
      };
    }
    this.isAuthorized = Session.isClaimsCurator(this.user) || Session.isPortalAdministrator(this.user);
    if (this.properties.adminToolsAPIURL && this.communityId) {
      //this.config.getCommunityInformation(this.properties, this.communityId).subscribe(data => {
      this.subs.push(this.config.communityInformationState.subscribe(data => {
          if (data) {
            if (data['entities']) {
              for (var i = 0; i < data['entities'].length; i++) {
                
                this.showEntity['' + data['entities'][i]['pid'] + ''] = data['entities'][i]['isEnabled'];
              }
            }
            if (data['pages']) {
              for (var i = 0; i < data['pages'].length; i++) {
                this.showPage[data['pages'][i]['route']] = data['pages'][i]['isEnabled'];
                
              }
            }
          }
        },
        error => {
          this.handleError('Error getting community information (e.g. pages,entities) for community with id: ' + this.communityId, error);
        }));
    }
		if(this.portal != 'connect' && this.portal != 'connect-admin' && this.properties.adminToolsPortalType == 'community') {
			this.subs.push(
				this._helpContentService.getMenuItems(this.portal).subscribe(
					data => {
						this.customMenuItems = data;
					},
					error => this.handleError("Server error fetching custom menu items", error)
				)
			);
		}
  }
  
  
  isEnabled(required, enabled) {
    if (!required) {
      return true;
    }
    
    
    for (let requiredEntity of required) {
      if (typeof enabled[requiredEntity] === 'undefined' || enabled[requiredEntity] == false) {
        return false;
      }
    }
    return true;
  }
  
  isAtleastOneEnabled(required, enabled) {
    if (!required || required.length == 0) {
      return true;
    }
    
    var count = required.length;
    for (let requiredEntity of required) {
      if (typeof enabled[requiredEntity] === 'undefined' || enabled[requiredEntity] == false) {
        count--;
      }
    }
    return (count > 0) ? true : false;
  }
  
  private handleError(message: string, error) {
    console.error('NavigationBar (component): ' + message, error);
  }
  
  get currentRoute() {
    return {
      route: this.router.url.split('?')[0].split('#')[0],
      fragment: this.route.snapshot.fragment
    }
  }
  
  isTheActiveMenu(menu: RootMenuItem): boolean {
    if (!menu.rootItem.markAsActive) {
      return false;
    }
    if (this.isTheActiveMenuItem(menu.rootItem)) {
      return true;
    } else if (menu.items.length > 0) {
      for (let menuItem of menu.items) {
        if (this.isTheActiveMenuItem(menuItem)) {
          return true;
        }
      }
    }
    return false;
  }
  
  isTheActiveMenuItem(menuItem: MenuItem): boolean {
    let currentRoute = this.currentRoute;
    return (menuItem.route == currentRoute.route || menuItem.route == (currentRoute.route + "/")) &&
      currentRoute.fragment == menuItem.fragment;
  }
}