import {Component, ElementRef, Inject, OnDestroy, OnInit, RendererFactory2, ViewChild, ViewEncapsulation} from '@angular/core';
import {ActivatedRoute, NavigationEnd, Router} from '@angular/router';

import {EnvProperties} from './openaireLibrary/utils/properties/env-properties';
import {MenuItem} from './openaireLibrary/sharedComponents/menu';
import {EnvironmentSpecificService} from './openaireLibrary/utils/properties/environment-specific.service';
import {CommunitiesService} from "./openaireLibrary/connect/communities/communities.service";
import {Session, User} from './openaireLibrary/login/utils/helper.class';
import {ConnectHelper} from './openaireLibrary/connect/connectHelper';
import {UserManagementService} from "./openaireLibrary/services/user-management.service";
import {ConfigurationService} from "./openaireLibrary/utils/configuration/configuration.service";
import {properties} from '../environments/environment';
import {Header} from "./openaireLibrary/sharedComponents/navigationBar.component";
import {AsyncSubject, Subscriber} from "rxjs";
import {CommunityService} from "./openaireLibrary/connect/community/community.service";
import {StringUtils} from "./openaireLibrary/utils/string-utils.class";
import {LoginErrorCodes} from "./openaireLibrary/login/utils/guardHelper.class";
import {CustomizationOptions, Layout} from "./openaireLibrary/connect/community/CustomizationOptions";
import {CustomizationService} from "./openaireLibrary/services/customization.service";
import {SmoothScroll} from "./openaireLibrary/utils/smooth-scroll";
import {Meta} from "@angular/platform-browser";
import {CommunityInfo} from "./openaireLibrary/connect/community/communityInfo";
import {SEOService} from "./openaireLibrary/sharedComponents/SEO/SEO.service";
import {UntypedFormBuilder, UntypedFormGroup, Validators} from "@angular/forms";
import {QuickContactService} from "./openaireLibrary/sharedComponents/quick-contact/quick-contact.service";
import {EmailService} from "./openaireLibrary/utils/email/email.service";
import {AlertModal} from "./openaireLibrary/utils/modal/alert";
import {QuickContactComponent} from "./openaireLibrary/sharedComponents/quick-contact/quick-contact.component";
import {Composer} from "./openaireLibrary/utils/email/composer";
import {NotificationHandler} from "./openaireLibrary/utils/notification-handler";
import {OpenaireEntities} from "./openaireLibrary/utils/properties/searchFields";
import {DOCUMENT} from "@angular/common";

@Component({
  selector: 'app-root',
  template: `
    <div [class]="(community)?(community.communityId +'App communityApp'):'connectApp'">
      <div id="modal-container"></div>
      <navbar *ngIf="properties && showMenu && !community && header" [portal]="properties.dashboard" [onlyTop]=false
              [userMenuItems]=userMenuItems [menuItems]=menuItems [user]="user" [header]="header"
              [showMenu]=showMenu [properties]="properties" [showHomeMenuItem]="false" communityId="connect">
        <ul *ngIf="showGetStarted" extra-s class="uk-nav uk-nav-default uk-margin-small-top">
          <li routerLinkActive="uk-active">
            <a routerLink="/get-started">Get Started</a>
          </li>
        </ul>
        <a *ngIf="showGetStarted" extra-m class="uk-button uk-button-small uk-button-primary uk-text-uppercase uk-margin-left" routerLink="/get-started">Get Started</a>
      </navbar>
      <navbar *ngIf="properties && showMenu  && community && header" [portal]="community.communityId" [onlyTop]=false
              [communityId]="community.communityId" [header]="header"
              [userMenuItems]=userMenuItems [menuItems]=menuItems [user]="user"
              [showMenu]=showMenu [properties]="properties" [enableSearch]="false"
              searchRoute="/search/find/research-outcomes"
              [showHomeMenuItem]="false">
      </navbar>
      <!--<customization *ngIf="properties &&  showMenu && communityId && communityId.length > 0 && layout" [properties]="properties"
                     [communityId]="communityId" [layout]="layout" ></customization>-->
      <schema2jsonld *ngIf="properties && showMenu && !community" [URL]="properties.domain + properties.baseLink"
                     [logoURL]="properties.domain + properties.baseLink + logoPath + 'main.svg'"
                     type="home"
                     [searchActionRoute]="properties.searchLinkToCommunities" [searchAction]="true"
                     name="OpenAIRE Connect"
                     description="Build a Gateway for your Community: Turn Open Science into Practice. It takes your open and linked research outcomes.">
      </schema2jsonld>
      <schema2jsonld *ngIf="properties  && showMenu && communityId && communityId.length > 0 && community"
                     [URL]="properties.domain + properties.baseLink"
                     [logoURL]="community.logoUrl" type="home" [searchActionRoute]="properties.searchLinkToResults"
                     [name]="(community.shortTitle) ? community.shortTitle : community.title" [description]="community.description">
      </schema2jsonld>
      <div class="custom-main-content">
        <main>
          <router-outlet></router-outlet>
        </main>
      </div>
      <div id="joinAndInviteBtn" *ngIf="isClient && communityId && community">
        <subscribe [communityId]="community.communityId"></subscribe>
        <invite *ngIf="isManager" [longView]="false"></invite>
      </div>
      <!--feedback *ngIf= "isClient && properties" portalName="Connect" [feedbackQuestionaire]=properties.feedbackQuestionaire></feedback-->
      <cookie-law *ngIf="isClient" position="bottom">
        OpenAIRE uses cookies in order to function properly.<br>
        Cookies are small pieces of data that websites store in your browser to allow us to give you the best browsing
        experience possible.
        By using the OpenAIRE portal you accept our use of cookies. <a
          href="https://www.openaire.eu/privacy-policy#cookies" target="_blank"> Read more <span class="uk-icon">
            <svg width="20" height="20" viewBox="0 0 20 20" xmlns="http://www.w3.org/2000/svg" icon="chevron-right"
                 ratio="1"><polyline fill="none" stroke="#000" stroke-width="1.03"
                                     points="7 4 13 10 7 16"></polyline></svg>
            </span></a>
      </cookie-law>
      <bottom #bottom *ngIf="properties && isClient && showMenu && !community" [grantAdvance]="false"
			[properties]="properties"></bottom>
      <bottom *ngIf="properties && isClient  && showMenu && community" class=" communityPanelBackground "
			[showSocialButtons]="true" [showMenuItems]="true" [grantAdvance]="false" [showOpenaire]="true"
			[communityId]="community.communityId" [menuItems]=bottomMenuItems [properties]="properties"
			[darkBackground]="true" [centered]="true"></bottom>
			<quick-contact #quickContact *ngIf="showQuickContact && contactForm" (sendEmitter)="send($event)"
										[contact]="'Help'" [images]="images" [background]="{class: 'uk-background-primary', dark: false}"
										[contactForm]="contactForm" [sending]="sending"></quick-contact>
      <modal-alert #modal [overflowBody]="false"></modal-alert>
      <role-verification *ngIf="community" service="connect"
                         [id]="community.communityId" [name]="community.title" [type]="community.type"></role-verification>
    </div>
  `
  
})
export class AppComponent implements OnInit, OnDestroy {
  isClient: boolean = false;
  userMenuItems: MenuItem[] = [];
  menuItems: MenuItem [] = [];
  bottomMenuItems: MenuItem[] = [];
  public community:CommunityInfo = null;
  properties: EnvProperties = properties;
  showMenu: boolean = false;
  communities = null;
  user: User;
  communityId: string = "";
  header: Header;
  logoPath: string = 'assets/common-assets/logo-services/connect/';
  /* Contact */
  public showQuickContact: boolean;
  public showGetStarted: boolean = true;
  public contactForm: UntypedFormGroup;
  public sending = false;
  public images: string[] = [];
  @ViewChild('modal') modal: AlertModal;
  @ViewChild('quickContact') quickContact: QuickContactComponent;
	@ViewChild('bottom', {read: ElementRef}) bottom: ElementRef;
  private subscriptions = [];
  layout: Layout = null;
  layouts: Layout[] = null;
  layoutDefault: Layout = null;
  layoutConnect: Layout = null;
  layoutSub = new AsyncSubject();
  previewLayout = null;
  constructor(private  route: ActivatedRoute, private propertiesService: EnvironmentSpecificService,
              private _communitiesService: CommunitiesService, private smoothScroll: SmoothScroll,
              private router: Router, private userManagementService: UserManagementService,
              private configurationService: ConfigurationService, private _communityService: CommunityService,
              private customizationService: CustomizationService, private _meta: Meta, private seoService: SEOService,
              private quickContactService: QuickContactService,
              private fb: UntypedFormBuilder,
              private emailService: EmailService,
              @Inject(DOCUMENT) private document, private rendererFactory: RendererFactory2
              ) {
    this.subscriptions.push(router.events.forEach((event) => {
      if (event instanceof NavigationEnd) {
        if (event.url === '/contact-us') {
          this.quickContactService.setDisplay(false);
        } else if (event.url !== '/contact-us' && !this.showQuickContact) {
          this.quickContactService.setDisplay(true);
        }
        this.showGetStarted = event.url !== '/get-started';
      }
    }));
    this.getLayouts();
  }
  
  ngOnInit() {

      this.subscriptions.push(this.route.queryParams.subscribe(data => {
        this.previewLayout = (data['previewLayout'] && data['previewLayout'].length >0 ? data['previewLayout']: null);
        if (this.properties.environment == "production" || this.properties.environment == "development") {
          this._meta.updateTag({content: 'all', name: 'robots'});
          this.seoService.removeLinkForPrevURL();
          this.seoService.removeLinkForNextURL();
        }
      }));
    this._communitiesService.updateCommunities(this.properties, this.properties.communitiesAPI);
    if (typeof document !== 'undefined') {
      try {
        this.isClient = true;
      } catch (e) {
      }
    }
    this.subscriptions.push(this.userManagementService.getUserInfo().subscribe(user => {
      this.user = user;
      this.init();
    }, error => {
      this.init()}));
    this.subscriptions.push(this.quickContactService.isDisplayed.subscribe(display => {
      this.showQuickContact = display;
    }));
  }
  
  ngOnDestroy() {
    this.subscriptions.forEach(subscription => {
      if (subscription instanceof Subscriber) {
        subscription.unsubscribe();
      }
    });
    this._communitiesService.clearSubscriptions();
    this.userManagementService.clearSubscriptions();
    this.configurationService.clearSubscriptions();
    this._communityService.clearSubscriptions();
    this.smoothScroll.clearSubscriptions();
  }

	createObservers() {
		let options = {
			root: null,
			rootMargin: '0px',
			threshold: 0.1
		};
		let intersectionObserver = new IntersectionObserver(entries => {
			entries.forEach(entry => {
        if (entry.isIntersecting && this.showQuickContact) {
          this.showQuickContact = false;
          this.quickContactService.setDisplay(this.showQuickContact);
        } else if (!entry.isIntersecting && !this.showQuickContact) {
          this.showQuickContact = true;
          this.quickContactService.setDisplay(this.showQuickContact);
        }
      });
		}, options);
		intersectionObserver.observe(this.bottom.nativeElement);
		this.subscriptions.push(intersectionObserver);
	}
  
  get isManager() {
    return Session.isCommunityCurator(this.user) || Session.isPortalAdministrator(this.user) || (this.communityId && Session.isManager('community', this.communityId, this.user))
  }

  get isPrivate() {
    return this.community && !ConnectHelper.isPrivate(this.community, this.user)
  }
  
  private init() {
    let communityId: string = ConnectHelper.getCommunityFromDomain(this.properties.domain);
    this.showMenu = false;
    this.initAdminToolCommunity(communityId);
    this.buildMenu(communityId);
    // this.communityId = communityId;
    if (!communityId) {
      this.reset();
      this.userManagementService.fixRedirectURL = properties.afterLoginRedirectLink;
    } else {
      this.userManagementService.fixRedirectURL = null;
    }
  }
  initCss(communityId, suffix=null) {
    try {

      const renderer = this.rendererFactory.createRenderer(this.document, {
        id: '-1',
        encapsulation: ViewEncapsulation.None,
        styles: [],
        data: {}
      });
      const head = this.document.getElementsByTagName('head')[0];
      if (head === null) {
        throw new Error('<head> not found within DOCUMENT.');
      }
      if(!this.document.getElementById("dashboardStyle")) {
        const script = renderer.createElement('link');
        renderer.setAttribute(script, "id", "dashboardStyle");
        renderer.setAttribute(script, "href", ((communityId) ? communityId : this.properties.adminToolsPortalType) + (suffix?"-"+suffix:"") + ".css");
        renderer.setAttribute(script, "rel", "stylesheet");
        renderer.appendChild(head, script);
      }else if(!this.previewLayout){
        this.document.getElementById("dashboardStyle").href =  ((communityId) ? communityId : this.properties.adminToolsPortalType)+ (suffix?"-"+suffix:"") + ".css";
        // console.log(this.document.getElementById("dashboardStyle"));
      }

    } catch (e) {
      console.error('Renderrer Error to append style ', e);
    }

  }
  
  initAdminToolCommunity(communityId) {
    if (communityId) {
      this.properties.adminToolsPortalType = "community";
      if (typeof document === 'undefined') {
        this.initLayout(communityId);
      }
    }else{
      this.properties.adminToolsPortalType = "connect";
      if (typeof document === 'undefined') {
        this.initLayout('connect');
      }
    }
    this.configurationService.initCommunityInformation(this.properties, (communityId) ? communityId : this.properties.adminToolsPortalType);

  }
  getLayouts(){
    this.customizationService.getLayouts(this.properties).subscribe(
    layouts => {
      this.layouts = layouts;
      this.layoutDefault = layouts.filter(layout => layout.portalPid == 'default')[0];
      this.layoutConnect = layouts.filter(layout => layout.portalPid == 'connect')[0];
      this.layoutSub.next(this.layouts);
      this.layoutSub.complete();
    },
    error => {

    }
  );
  }
  initLayout(communityId){
    if(!this.layout && (typeof location == 'undefined') && !this.previewLayout) {
      this.subscriptions.push(this.layoutSub.subscribe(value => {
        this.layout = this.layouts.filter(layout => layout.portalPid == communityId)[0]?this.layouts.filter(layout => layout.portalPid == communityId)[0]:this.layouts.filter(layout => layout.portalPid == 'default')[0];
        this.initCss(this.layout.portalPid, this.layout.date?this.layout.date:null)
      }));

    }else if(this.previewLayout && this.previewLayout.split("-preview-")[0] == communityId){
      this.initCss(communityId, this.previewLayout.split(communityId)[1]);
    }
  }
  public buildMenu(communityId: string) {
    if (communityId) {
      if (!this.community || this.communityId !== communityId) {
        this.subscriptions.push(this._communityService.getCommunity(communityId).subscribe(community => {
          if (community) {
           this.community = community;
          }else{
            this.community = null;
            this.communityId = null;
          }
          this.buildCommunityMenu();
        }));
      } else {
        this.buildCommunityMenu();
      }
    } else {
      this.buildConnectMenu();
    }
  }

  buildCommunityMenu(){
    if (this.community && !ConnectHelper.isPrivate(this.community, this.user)) {
      this.communityId = this.community.communityId;
      this.header = {
        // url: 'https://' + (this.properties.environment == 'beta' ? 'beta.' : '') + this.community.id + '.openaire.eu',
        route: "/",
        title: (this.community.shortTitle) ? this.community.shortTitle : this.community.title,
        logoUrl: (this.community.isUpload) ? (properties.utilsService + '/download/' + this.community.logoUrl) : (StringUtils.urlPrefix(this.community.logoUrl) + this.community.logoUrl),
        logoSmallUrl: (this.community.isUpload) ? (properties.utilsService + '/download/' + this.community.logoUrl) : (StringUtils.urlPrefix(this.community.logoUrl) + this.community.logoUrl),
        position: 'left',
        badge: true
      };
      this.menuItems = [];
      this.menuItems.push(
        new MenuItem("dashboard", "Home",
          "", "/", false, [], null, {}
          , null, null, null, null)
      );
      this.menuItems.push(
        new MenuItem("deposit", "Deposit", "", "/participate/deposit/learn-how", false, [], ["/participate/deposit/learn-how"], {}),
      );
      this.menuItems.push(
        new MenuItem("link", "Link", "", "/participate/claim", false, [], ["/participate/claim"], {},
          null, null, null, null, "_blank", "internal", false,
          [
            new MenuItem("", "Start linking", "", "/participate/claim", false, [], ["/participate/claim"], {}),
            new MenuItem("", "Learn more", this.properties.claimsInformationLink, "", false, [], [], {})
          ]
        )
      );
      this.menuItems.push(
        new MenuItem("search", "Search", "", "/search/find", false, [], ["/search/find"], {},
          null, null, null, null, "_blank", "internal", false,
          [
            new MenuItem("", OpenaireEntities.RESULTS, "", "/search/find/research-outcomes", false, [], ["/search/find/research-outcomes"], {resultbestaccessright: '"' + encodeURIComponent("Open Access") + '"'}),
            new MenuItem("", OpenaireEntities.PROJECTS, "", "/search/find/projects/", false, ["project"], ["/search/find/projects"], {}),
            new MenuItem("", OpenaireEntities.DATASOURCES, "", "/search/find/dataproviders", false, ["datasource"], ["/search/find/dataproviders"], {}),
          ]
        ));
      this.menuItems.push(
        new MenuItem("about", "About", "", "", false, [], [], {},
          null, null, null, null, "_blank", "internal", false,
          [
            new MenuItem("", "Supporting organizations", "", "/organizations", false, [], ["/organizations"], {}),
            new MenuItem("", "Curators", "", "/curators", false, [], ["/curators"], {}),
            new MenuItem("", "Sources and methodology", "", "/content", false, [], ["/content"], {}),
            new MenuItem("", "National Bulletins", "", "/national-bulletins", false, [], ["/national-bulletins"], {}),
            new MenuItem("", "Subjects", "", "/subjects", false, [], ["/subjects"], {}),
            new MenuItem("", "Projects and funding Opportunities", "", "/projects", false, [], ["/projects"], {}),
          ]
        ));
			this.menuItems.push(
				new MenuItem("develop", "Develop", "", "/develop", false, [], ["/develop"], {}),
      );
      if (this.isManager) {
        this.menuItems.push(
          new MenuItem("manage", "Manage", this.properties.adminPortalURL + '/' + this.community.communityId, "", false, [], [], {}, null, null, null, null, "_self"),
        );
      }
      this.bottomMenuItems = [
        new MenuItem("", "Supporting organizations", "", "/organizations", false, [], ["/organizations"], {})
      ];
      if (this.properties.showContent) {
        this.bottomMenuItems.push(new MenuItem("", "Sources and methodology", "", "/content", false, [], [], {}));
      }
      if (this.user) {
        this.userMenuItems = [ /*new MenuItem("","My profile","","",false,[],[],{}),*/
          new MenuItem("", "My ORCID links", "", "/my-orcid-links", false, [], [], {}),
          new MenuItem("", "My links", "", "/myclaims", false, [], ["/myclaims"], {}),
          new MenuItem("", "Invite users", "", "/invite", false, [], [], {}),
        ];
        if (this.isManager) {
          this.userMenuItems.push(new MenuItem("", "Support", "https://tools.openaire.eu/group/openaire_rcd", "", false, [], [], {}))
        }
      }
      this.showMenu = true;
    } else {
      this.communityId = null;
      this.properties.adminToolsPortalType = "connect";
      this.configurationService.initCommunityInformation(this.properties, "connect");
      this.initAdminToolCommunity(null);
      this.buildConnectMenu(true);
      if (this.community && this.community.status == "manager") {
        if (!this.user ) {
          if(typeof location !== 'undefined' && location.pathname.indexOf("user-info") == -1) {
            this.router.navigate(['/user-info'], {
              queryParams: {
                "errorCode": LoginErrorCodes.NOT_LOGIN,
                "redirectUrl": location.pathname + location.search + location.hash
              }
            });
          }
        }  else {
          if(typeof location !== 'undefined' && location.pathname.indexOf("user-info") == -1) {
            this.router.navigate(['/'], {queryParamsHandling: "merge"});
          }
        }
      }else  if (this.community && this.community.status == "hidden") {
        this.router.navigate([this.properties.errorLink]);
      }else{
        this.router.navigate(['/'], this.community && this.community.status ? {  queryParamsHandling: "merge" } : {});
      }
    }
  }
  buildConnectMenu(restrictedData: boolean = false) {
    let url = "https://" + (properties.environment != "production" ? "beta." : "") + "connect.openaire.eu";
    this.header = {
      route: restrictedData ? "" : "/",
      url: restrictedData ? url : "",
      title: 'connect',
      logoUrl: this.logoPath + 'main.svg',
      logoSmallUrl: this.logoPath + 'small.svg',
      position: 'left',
      badge: true
    };
    this.menuItems = [];
    this.menuItems.push(
      new MenuItem("about", "About", restrictedData ? url + "/about/learn-how" : "", restrictedData ? "" : "/about/learn-how", false, [], ["/about/learn-how"], {},
        null, null, null, null, "_blank", "internal", false,
        [
          new MenuItem("", "Learn the process", restrictedData ? url + "/about/learn-how" : "", restrictedData ? "" : "/about/learn-how", false, [], ["/about/learn-in-depth"], {}),
          new MenuItem("", "Publications", restrictedData ? url + "/publications" : "", restrictedData ? "" : "/publications", false, [], ["/publications"], {}),
          new MenuItem("", "Roadmap", "https://trello.com/b/yfzUz0kp/openaire-connect-dashboard", "", false, [], [], {}),
          new MenuItem("", "FAQs", restrictedData ? url + "/about/faq" : "", restrictedData ? "" : "/about/faq", false, [], ["/about/faq"], {})
        ]
      )
    );
    this.menuItems.push(
      new MenuItem("communities", "Communities", restrictedData ? url + "/search/find/communities" : "", restrictedData ? "" : "/search/find/communities", false, [], ['/search/find/communities'], {}),
    );
    this.bottomMenuItems = [
      new MenuItem("", "About", "https://openaire.eu/project-factsheets", "", false, [], [], {}),
      new MenuItem("", "News - Events", "https://openaire.eu/news-events", "", false, [], [], {}),
      new MenuItem("", "Blog", "https://blogs.openaire.eu/", "", false, [], [], {}),
      new MenuItem("", "Contact us", restrictedData ? url + "/contact-us" : "", restrictedData ? "" : "/contact-us", false, [], [], {})
    ];
    this.userMenuItems = [];
    if (Session.isPortalAdministrator(this.user)) {
      this.userMenuItems.push(new MenuItem("", "Manage Helptexts",
        properties.adminPortalURL + "/connect/admin-tools/pages", "", false, [], [], {}))
    }
    if (this.user) {
      this.userMenuItems.push(new MenuItem("my-communities", "My Communities", restrictedData ? url + "/myCommunities" : "",
        restrictedData ? "" : "/myCommunities", false, [], [], {}));
    }
    this.showMenu = true;
    if (typeof document !== "undefined") {
      setTimeout(() => {
        this.createObservers();
      });
    }
  }
  
  /**
   * Contact methods
   * */
  public send(event) {
    if (event.valid === true) {
      this.sendMail(this.properties.admins);
    }
  }
  
  public reset() {
    if (this.quickContact) {
      this.quickContact.close();
    }
    this.contactForm = this.fb.group({
      name: this.fb.control('', Validators.required),
      surname: this.fb.control('', Validators.required),
      email: this.fb.control('', [Validators.required, Validators.email]),
      affiliation: this.fb.control('', Validators.required),
      community: this.fb.control('', Validators.required),
      message: this.fb.control('', Validators.required),
      recaptcha: this.fb.control('', Validators.required)
    });
  }
  
  private sendMail(admins: string[]) {
    this.sending = true;
    this.subscriptions.push(this.emailService.contact(this.properties,
      Composer.composeEmailForNewCommunity(this.contactForm.value, admins),
      this.contactForm.value.recaptcha).subscribe(
      res => {
        if (res) {
          this.sending = false;
          this.reset();
          this.modalOpen();
        } else {
          this.handleError('Email <b>sent failed!</b> Please try again.');
        }
      },
      error => {
        this.handleError('Email <b>sent failed!</b> Please try again.', error);
      }
    ));
  }
  
  public modalOpen() {
    this.modal.okButton = true;
    this.modal.alertTitle = 'Your request has been successfully submitted';
    this.modal.message = 'Our team will respond to your submission soon.';
    this.modal.alertMessage = true;
    this.modal.cancelButton = false;
    this.modal.okButtonLeft = false;
    this.modal.okButtonText = 'OK';
    this.modal.open();
  }
  
  handleError(message: string, error = null) {
    if (error) {
      console.error(error);
    }
    this.sending = false;
    this.quickContact.close();
    NotificationHandler.rise(message, 'danger');
    this.contactForm.get('recaptcha').setValue('');
  }
}