UI warning for export item limit

src/app/shared/search/search-export-csv/search-export-csv.component.html

@@ -1,9 +1,22 @@
+<ng-template #tipContent>
+  <div class="tooltip-content">
+    <p class="m-0">{{tooltipMsg | translate}}</p>
+  </div>
+</ng-template>
+
+<ng-template #tipContentWarning>
+  <div class="tooltip-content">
+    <p class="m-0">{{tooltipMsg | translate}}</p>
+    <p class="m-0 text-warning">{{exportLimitExceededMsg}}</p>
+  </div>
+</ng-template>
+
 @if (shouldShowButton$ | async) {
   <button
     class="export-button btn btn-dark btn-sm"
-    [ngbTooltip]="tooltipMsg | translate"
+    [ngbTooltip]="(shouldShowWarning$ | async) ? tipContentWarning : tipContent"
     (click)="export()"
-    [title]="tooltipMsg |translate" [attr.aria-label]="tooltipMsg |translate">
+    [title]="tooltipMsg | translate" [attr.aria-label]="(shouldShowWarning$ | async) ? ((tooltipMsg | translate) + ' ' + exportLimitExceededMsg): (tooltipMsg | translate)">
     <i class="fas fa-file-export fa-fw"></i>
   </button>
-}
+}

src/app/shared/search/search-export-csv/search-export-csv.component.spec.ts

@@ -9,6 +9,7 @@ import { NgbModule } from '@ng-bootstrap/ng-bootstrap';
 import { TranslateModule } from '@ngx-translate/core';
 import { of as observableOf } from 'rxjs';
 
+import { ConfigurationDataService } from '../../../core/data/configuration-data.service';
 import { AuthorizationDataService } from '../../../core/data/feature-authorization/authorization-data.service';
 import { ScriptDataService } from '../../../core/data/processes/script-data.service';
 import { getProcessDetailRoute } from '../../../process-page/process-page-routing.paths';
@@ -31,6 +32,7 @@ describe('SearchExportCsvComponent', () => {
   let authorizationDataService: AuthorizationDataService;
   let notificationsService;
   let router;
+  let configurationDataService: jasmine.SpyObj<ConfigurationDataService>;
 
   const process = Object.assign(new Process(), { processId: 5, scriptName: 'metadata-export-search' });
 
@@ -45,6 +47,10 @@ describe('SearchExportCsvComponent', () => {
     ],
   });
 
+  configurationDataService = jasmine.createSpyObj('ConfigurationDataService', {
+    findByPropertyName: observableOf({ payload: { value: '500' } }),
+  });
+
   function initBeforeEachAsync() {
     scriptDataService = jasmine.createSpyObj('scriptDataService', {
       scriptWithNameExistsAndCanExecute: observableOf(true),
@@ -64,6 +70,7 @@ describe('SearchExportCsvComponent', () => {
         { provide: AuthorizationDataService, useValue: authorizationDataService },
         { provide: NotificationsService, useValue: notificationsService },
         { provide: Router, useValue: router },
+        { provide: ConfigurationDataService, useValue: configurationDataService },
       ],
     }).compileComponents();
   }

src/app/shared/search/search-export-csv/search-export-csv.component.ts

@@ -2,7 +2,9 @@
 import {
   Component,
   Input,
+  OnChanges,
   OnInit,
+  SimpleChanges,
 } from '@angular/core';
 import { Router } from '@angular/router';
 import { NgbTooltipModule } from '@ng-bootstrap/ng-bootstrap';
@@ -18,10 +20,12 @@
   switchMap,
 } from 'rxjs/operators';
 
+import { ConfigurationDataService } from '../../../core/data/configuration-data.service';
 import { AuthorizationDataService } from '../../../core/data/feature-authorization/authorization-data.service';
 import { FeatureID } from '../../../core/data/feature-authorization/feature-id';
 import { ScriptDataService } from '../../../core/data/processes/script-data.service';
 import { RemoteData } from '../../../core/data/remote-data';
+import { ConfigurationProperty } from '../../../core/shared/configuration-property.model';
 import { getFirstCompletedRemoteData } from '../../../core/shared/operators';
 import { getProcessDetailRoute } from '../../../process-page/process-page-routing.paths';
 import { Process } from '../../../process-page/processes/process.model';
@@ -43,13 +47,18 @@
 /**
  * Display a button to export the current search results as csv
  */
-export class SearchExportCsvComponent implements OnInit {
+export class SearchExportCsvComponent implements OnInit, OnChanges {
 
   /**
    * The current configuration of the search
    */
   @Input() searchConfig: PaginatedSearchOptions;
 
+  /**
+   * The total number of items in the search results which can be exported
+   */
+  @Input() total: number;
+
   /**
    * Observable used to determine whether the button should be shown
    */
@@ -60,12 +69,18 @@
    */
   tooltipMsg = 'metadata-export-search.tooltip';
 
+  exportLimitExceededKey = 'metadata-export-search.submit.error.limit-exceeded';
+
+  exportLimitExceededMsg = '';
+
+  shouldShowWarning$: Observable<boolean>;
+
   constructor(private scriptDataService: ScriptDataService,
               private authorizationDataService: AuthorizationDataService,
               private notificationsService: NotificationsService,
               private translateService: TranslateService,
               private router: Router,
-  ) {
+              private configurationService: ConfigurationDataService) {
   }
 
   ngOnInit(): void {
@@ -75,6 +90,31 @@
       map((canExecute: boolean) => canExecute),
       startWith(false),
     );
+    this.shouldShowWarning$ = this.itemExceeds();
+  }
+
+  ngOnChanges(changes: SimpleChanges): void {
+    if (changes.total) {
+      this.shouldShowWarning$ = this.itemExceeds();
+    }
+  }
+
+  /**
+   * Checks if the export limit has been exceeded and updates the tooltip accordingly
+   */
+  private itemExceeds(): Observable<boolean> {
+    return this.configurationService.findByPropertyName('bulkedit.export.max.items').pipe(
+      getFirstCompletedRemoteData(),
+      map((response: RemoteData<ConfigurationProperty>) => {
+        const limit = Number(response.payload?.values?.[0]) || 500;
+        if (limit < this.total) {
+          this.exportLimitExceededMsg = this.translateService.instant(this.exportLimitExceededKey, { limit: String(limit) });
+          return true;
+        } else {
+          return false;
+        }
+      }),
+    );
   }
 
   /**

src/app/shared/search/search-results/search-results.component.html

@@ -15,7 +15,7 @@
     <h1>{{ (configuration ? configuration + '.search.results.head' : 'search.results.head') | translate }}</h1>
   }
   @if (showCsvExport) {
-    <ds-search-export-csv [searchConfig]="searchConfig"></ds-search-export-csv>
+    <ds-search-export-csv [searchConfig]="searchConfig" [total]="searchResults?.payload?.totalElements"></ds-search-export-csv>
   }
 </div>
 @if (searchResults && searchResults?.hasSucceeded && !searchResults?.isLoading && searchResults?.payload?.page.length > 0) {

src/assets/i18n/en.json5

@@ -7050,4 +7050,6 @@
   "metadata-export-filtered-items.columns.warning": "CSV export automatically includes all relevant fields, so selections in this list are not taken into account.",
 
   "embargo.listelement.badge": "Embargo until {{ date }}",
+
+  "metadata-export-search.submit.error.limit-exceeded": "Only the first {{limit}} items will be exported",
 }