External source items import code completed

src/app/submission/import-external/submission-import-external.component.ts

@@ -1,7 +1,22 @@
-import { Component, OnInit, ChangeDetectorRef } from '@angular/core';
-import { Observable, of as observableOf } from 'rxjs';
+import { Component, OnInit } from '@angular/core';
+import { Router } from '@angular/router';
+import { combineLatest, BehaviorSubject } from 'rxjs';
 import { ExternalSourceService } from '../../core/data/external-source.service';
 import { ExternalSourceData } from './import-external-searchbar/submission-import-external-searchbar.component';
+import { RemoteData } from '../../core/data/remote-data';
+import { PaginatedList } from '../../core/data/paginated-list';
+import { ExternalSourceEntry } from '../../core/shared/external-source-entry.model';
+import { SearchConfigurationService } from '../../core/shared/search/search-configuration.service';
+import { switchMap, filter } from 'rxjs/operators';
+import { PaginatedSearchOptions } from '../../shared/search/paginated-search-options.model';
+import { Context } from '../../core/shared/context.model';
+import { PaginationComponentOptions } from '../../shared/pagination/pagination-component-options.model';
+import { RouteService } from '../../core/services/route.service';
+import { createSuccessfulRemoteDataObject } from '../../shared/remote-data.utils';
+import { NgbModal, NgbModalRef } from '@ng-bootstrap/ng-bootstrap';
+import { SubmissionImportExternalPreviewComponent } from './import-external-preview/submission-import-external-preview.component';
+import { fadeIn } from '../../shared/animations/fade';
+import { createPaginatedList } from '../../shared/testing/utils.test';
 
 /**
  * This component allows to submit a new workspaceitem importing the data from an external source.
@@ -9,27 +24,129 @@ import { ExternalSourceData } from './import-external-searchbar/submission-impor
 @Component({
   selector: 'ds-submission-import-external',
   styleUrls: ['./submission-import-external.component.scss'],
-  templateUrl: './submission-import-external.component.html'
+  templateUrl: './submission-import-external.component.html',
+  animations: [ fadeIn ]
 })
-export class SubmissionImportExternalComponent {
+export class SubmissionImportExternalComponent implements OnInit {
   /**
-   * The external source search data.
+   * The external source search data from the routing service.
    */
-  public externalSourceData: ExternalSourceData;
+  public routeData: ExternalSourceData;
+  /**
+   * The displayed list of entries
+   */
+  public entriesRD$: BehaviorSubject<RemoteData<PaginatedList<ExternalSourceEntry>>>;
+  /**
+   * TRUE if the REST service is called to retrieve the external source items
+   */
+  public isLoading$: BehaviorSubject<boolean>;
+  /**
+   * Configuration to use for the import buttons
+   */
+  public importConfig: { buttonLabel: string };
+  /**
+   * Suffix for button label
+   */
+  public label: string;
+  /**
+   * The ID of the list to add/remove selected items to/from
+   */
+  public listId: string;
+  /**
+   * TRUE if the selection is repeatable
+   */
+  public repeatable: boolean;
+  /**
+   * The initial pagination options
+   */
+  public initialPagination = Object.assign(new PaginationComponentOptions(), {
+    id: 'submission-external-source-relation-list',
+    pageSize: 5
+  });
+  /**
+   * The context to displaying lists for
+   */
+  public context: Context;
+  /**
+   * The modal for the entry preview
+   */
+  modalRef: NgbModalRef;
 
   /**
    * Initialize the component variables.
+   * @param {SearchConfigurationService} searchConfigService
    * @param {ExternalSourceService} externalService
+   * @param {RouteService} routeService
+   * @param {Router} router
+   * @param {NgbModal} modalService
    */
   constructor(
+    public searchConfigService: SearchConfigurationService,
     private externalService: ExternalSourceService,
-    private cdr: ChangeDetectorRef,
+    private routeService: RouteService,
+    private router: Router,
+    private modalService: NgbModal,
   ) { }
 
   /**
-   * Get the data to submit a search.
+   * Get the entries for the selected external source and set initial configuration.
    */
-  public getExternalsourceData(event: ExternalSourceData) {
-    this.externalSourceData = event;
+  ngOnInit(): void {
+    this.label      = 'Journal';
+    this.listId     = 'list-submission-external-sources';
+    this.context    = Context.SubmissionModal;
+    this.repeatable = false;
+    this.routeData  = { sourceId: '', query: '' };
+    this.importConfig = {
+      buttonLabel: 'submission.sections.describe.relationship-lookup.external-source.import-button-title.' + this.label
+    };
+    this.entriesRD$ = new BehaviorSubject(createSuccessfulRemoteDataObject(createPaginatedList([])));
+    this.isLoading$ = new BehaviorSubject(false);
+    combineLatest(
+      [
+        this.routeService.getQueryParameterValue('source'),
+        this.routeService.getQueryParameterValue('query')
+      ]).pipe(
+        filter(([source, query]) => source && query && source !== '' && query !== ''),
+        filter(([source, query]) => source !== this.routeData.sourceId || query !== this.routeData.query),
+        switchMap(([source, query]) => {
+          this.routeData.sourceId = source;
+          this.routeData.query = query;
+          this.isLoading$.next(true);
+          return this.searchConfigService.paginatedSearchOptions.pipe(
+            switchMap((searchOptions: PaginatedSearchOptions) => {
+              return this.externalService.getExternalSourceEntries(this.routeData.sourceId, searchOptions);
+            })
+          )
+        }),
+    ).subscribe((rdData) => {
+      this.entriesRD$.next(rdData);
+      this.isLoading$.next(false);
+    });
+  }
+
+  /**
+   * Get the data from the searchbar and changes the router data.
+   */
+  public getExternalsourceData(event: ExternalSourceData): void {
+    this.router.navigate(
+      [],
+      {
+        queryParams: { source: event.sourceId, query: event.query },
+        replaceUrl: true
+      }
+    );
+  }
+
+  /**
+   * Display an item preview by opening up an import modal window.
+   * @param entry The entry to import
+   */
+  public import(entry): void {
+    this.modalRef = this.modalService.open(SubmissionImportExternalPreviewComponent, {
+      size: 'lg',
+    });
+    const modalComp = this.modalRef.componentInstance;
+    modalComp.externalSourceEntry = entry;
   }
 }