openaire-library/error/errorPage.component.ts

import {Component, Inject, Input, Optional} from '@angular/core';
import {Location}                 from '@angular/common';
import {ActivatedRoute}           from '@angular/router';
import {Title, Meta}              from '@angular/platform-browser';
import {RESPONSE} from "@nguniversal/express-engine/tokens";
import {EnvProperties} from "../utils/properties/env-properties";
import {SEOService} from "../sharedComponents/SEO/SEO.service";

@Component({
    selector: 'error',
    template: `
    <div id="tm-main" class=" uk-section tm-middle">
      <div uk-grid class="uk-margin-small-top">
       <div class="tm-main uk-width-1-1@s uk-width-1-1@m  uk-width-1-1@l uk-row-first ">
        <div class="uk-container">
            <h2>
                Bad karma: we can't find that page!
            </h2>
            <h5 *ngIf="page_type" class="uk-margin-remove">
              Not valid or missing {{page_type_name}} id. 
              <a *ngIf="page_type" routerLinkActive="router-link-active" [routerLink]="searchPage">Search </a>another {{page_type_name}}?
            </h5>
            <br>
            <p>
                You asked for {{page}}, but despite our computers looking very hard, we could not find it. What happened ?
            </p>
            <ul>
                <li>the link you clicked to arrive here has a typo in it</li>
                <li>or somehow we removed that page, or gave it another name</li>
                <li>or, quite unlikely for sure, maybe you typed it yourself and there was a little mistake ?</li>
            </ul>
        </div>
      </div>
     </div>
  </div>
    `
})

export class ErrorPageComponent {
    public page: string;
    public page_type: string;
    public searchPage: string;
    public page_type_name: string;

    constructor (private _location: Location, private _meta: Meta,
                 private _title: Title, private route: ActivatedRoute,
                 @Optional() @Inject(RESPONSE) private response: any,
                 private seoService: SEOService) {

        var title = "OpenAIRE | Error page";

        this._meta.updateTag({content:title},"property='og:title'");
        this._title.setTitle(title);
        this.page = _location.path(true);
        //this.page = _router.url;
        //this.page = location.href;
    }
    ngOnInit() {
      if(this.response) {
        this.response.statusCode = 404;
        this.response.statusMessage = '404 - Page not found';
      }
      this.route.data
        .subscribe((data: { envSpecific: EnvProperties }) => {
          let properties = data.envSpecific;
          this.seoService.createLinkForCanonicalURL(properties.baseLink + "/error");

          this.route.queryParams.subscribe(data => {
            this.page = data['page'];
            if (!this.page) {
              this.page = this._location.path(true);
            }

            this.page_type = data['page_type'];
            if(this.page_type) {
              if (this.page_type == "publication") {
                this.searchPage = properties.searchLinkToPublications;
                this.page_type_name = "publication";
              } else if (this.page_type == "software") {
                this.searchPage = properties.searchLinkToSoftware;
                this.page_type_name = "software";
              } else if (this.page_type == "dataset") {
                this.searchPage = properties.searchLinkToDatasets;
                this.page_type_name = "dataset";
              } else if (this.page_type == "orp") {
                this.searchPage = properties.searchLinkToOrps;
                this.page_type_name = "research product";
              } else if (this.page_type == "organization") {
                this.searchPage = properties.searchLinkToOrganizations;
                this.page_type_name = "organization";
              } else if (this.page_type == "project") {
                this.searchPage = properties.searchLinkToProjects;
                this.page_type_name = "project";
              } else if (this.page_type == "dataprovider") {
                this.searchPage = properties.searchLinkToDataProviders;
                this.page_type_name = "content provider";
              }
            }
          });
      });
    }
}