Merge branch 'w2p-117573_remove-observable-function-calls-from-template-7.6'

2025-10-07 01:54:15 +00:00 · 2025-05-02 00:58:00 +02:00
parent 5719f06dd1 dc8b10593c
commit 6c1212de4e
31 changed files with 288 additions and 553 deletions
--- a/src/app/admin/admin-registries/metadata-schema/metadata-field-form/metadata-field-form.component.html
+++ b/src/app/admin/admin-registries/metadata-schema/metadata-field-form/metadata-field-form.component.html
@@ -1,4 +1,4 @@
-@if (registryService.getActiveMetadataField() | async) {
+@if (activeMetadataField$ | async) {
  <h2>{{messagePrefix + '.edit' | translate}}</h2>
 } @else {
  <h2>{{messagePrefix + '.create' | translate}}</h2>
--- a/src/app/admin/admin-registries/metadata-schema/metadata-field-form/metadata-field-form.component.ts
+++ b/src/app/admin/admin-registries/metadata-schema/metadata-field-form/metadata-field-form.component.ts
@@ -19,7 +19,7 @@ import {
  TranslateModule,
  TranslateService,
 } from '@ngx-translate/core';
-import { combineLatest } from 'rxjs';
+import { Observable } from 'rxjs';
 import { take } from 'rxjs/operators';

 import { MetadataField } from '../../../../core/metadata/metadata-field.model';
@@ -109,6 +109,8 @@ export class MetadataFieldFormComponent implements OnInit, OnDestroy {
   */
  @Output() submitForm: EventEmitter<any> = new EventEmitter();

+  activeMetadataField$: Observable<MetadataField>;
+
  constructor(public registryService: RegistryService,
              private formBuilderService: FormBuilderService,
              private translateService: TranslateService) {
@@ -117,71 +119,65 @@ export class MetadataFieldFormComponent implements OnInit, OnDestroy {
  /**
   * Initialize the component, setting up the necessary Models for the dynamic form
   */
-  ngOnInit() {
-    combineLatest([
-      this.translateService.get(`${this.messagePrefix}.element`),
-      this.translateService.get(`${this.messagePrefix}.qualifier`),
-      this.translateService.get(`${this.messagePrefix}.scopenote`),
-    ]).subscribe(([element, qualifier, scopenote]) => {
-      this.element = new DynamicInputModel({
-        id: 'element',
-        label: element,
-        name: 'element',
-        validators: {
-          required: null,
-          pattern: '^[^. ,]*$',
-          maxLength: 64,
-        },
-        required: true,
-        errorMessages: {
-          pattern: 'error.validation.metadata.element.invalid-pattern',
-          maxLength: 'error.validation.metadata.element.max-length',
-        },
-      });
-      this.qualifier = new DynamicInputModel({
-        id: 'qualifier',
-        label: qualifier,
-        name: 'qualifier',
-        validators: {
-          pattern: '^[^. ,]*$',
-          maxLength: 64,
-        },
-        required: false,
-        errorMessages: {
-          pattern: 'error.validation.metadata.qualifier.invalid-pattern',
-          maxLength: 'error.validation.metadata.qualifier.max-length',
-        },
-      });
-      this.scopeNote = new DynamicTextAreaModel({
-        id: 'scopeNote',
-        label: scopenote,
-        name: 'scopeNote',
-        required: false,
-        rows: 5,
-      });
-      this.formModel = [
-        new DynamicFormGroupModel(
-          {
-            id: 'metadatadatafieldgroup',
-            group:[this.element, this.qualifier, this.scopeNote],
-          }),
-      ];
-      this.formGroup = this.formBuilderService.createFormGroup(this.formModel);
-      this.registryService.getActiveMetadataField().subscribe((field: MetadataField): void => {
-        if (field == null) {
-          this.clearFields();
-        } else {
-          this.formGroup.patchValue({
-            metadatadatafieldgroup: {
-              element: field.element,
-              qualifier: field.qualifier,
-              scopeNote: field.scopeNote,
-            },
-          });
-          this.element.disabled = true;
-          this.qualifier.disabled = true;
-        }
-      });
+  ngOnInit(): void {
+    this.activeMetadataField$ = this.registryService.getActiveMetadataField();
+    this.element = new DynamicInputModel({
+      id: 'element',
+      label: this.translateService.instant(`${this.messagePrefix}.element`),
+      name: 'element',
+      validators: {
+        required: null,
+        pattern: '^[^. ,]*$',
+        maxLength: 64,
+      },
+      required: true,
+      errorMessages: {
+        pattern: 'error.validation.metadata.element.invalid-pattern',
+        maxLength: 'error.validation.metadata.element.max-length',
+      },
+    });
+    this.qualifier = new DynamicInputModel({
+      id: 'qualifier',
+      label: this.translateService.instant(`${this.messagePrefix}.qualifier`),
+      name: 'qualifier',
+      validators: {
+        pattern: '^[^. ,]*$',
+        maxLength: 64,
+      },
+      required: false,
+      errorMessages: {
+        pattern: 'error.validation.metadata.qualifier.invalid-pattern',
+        maxLength: 'error.validation.metadata.qualifier.max-length',
+      },
+    });
+    this.scopeNote = new DynamicTextAreaModel({
+      id: 'scopeNote',
+      label: this.translateService.instant(`${this.messagePrefix}.scopenote`),
+      name: 'scopeNote',
+      required: false,
+      rows: 5,
+    });
+    this.formModel = [
+      new DynamicFormGroupModel({
+        id: 'metadatadatafieldgroup',
+        group:[this.element, this.qualifier, this.scopeNote],
+      }),
+    ];
+    this.formGroup = this.formBuilderService.createFormGroup(this.formModel);
+    this.registryService.getActiveMetadataField().subscribe((field: MetadataField): void => {
+      if (field == null) {
+        this.clearFields();
+      } else {
+        this.formGroup.patchValue({
+          metadatadatafieldgroup: {
+            element: field.element,
+            qualifier: field.qualifier,
+            scopeNote: field.scopeNote,
+          },
+        });
+        this.element.disabled = true;
+        this.qualifier.disabled = true;
+      }
    });
  }

--- a/src/app/item-page/edit-item-page/item-authorizations/item-authorizations.component.html
+++ b/src/app/item-page/edit-item-page/item-authorizations/item-authorizations.component.html
@@ -1,7 +1,7 @@
 <div class="container">
-  <ds-alert [type]="'alert-info'" [content]="'item.edit.authorizations.heading'"></ds-alert>
-  <ds-resource-policies [resourceType]="'item'" [resourceName]="(getItemName() | async)"
-    [resourceUUID]="(getItemUUID() | async)">
+  <ds-alert [type]="AlertType.Info" [content]="'item.edit.authorizations.heading'"></ds-alert>
+  <ds-resource-policies [resourceType]="'item'" [resourceName]="itemName$ | async"
+    [resourceUUID]="(item$ | async)?.id">
  </ds-resource-policies>
  @for (bundle of (bundles$ | async); track bundle) {
    <ds-resource-policies [resourceType]="'bundle'" [resourceUUID]="bundle.id" [resourceName]="bundle.name">
--- a/src/app/item-page/edit-item-page/item-authorizations/item-authorizations.component.spec.ts
+++ b/src/app/item-page/edit-item-page/item-authorizations/item-authorizations.component.spec.ts
@@ -169,17 +169,9 @@ describe('ItemAuthorizationsComponent test suite', () => {
      }));
    });

-    it('should get the item UUID', () => {
-
-      expect(comp.getItemUUID()).toBeObservable(cold('(a|)', {
-        a: item.id,
-      }));
-
-    });
-
    it('should get the item\'s bundle', () => {

-      expect(comp.getItemBundles()).toBeObservable(cold('a', {
+      expect(comp.bundles$).toBeObservable(cold('a', {
        a: bundles,
      }));

--- a/src/app/item-page/edit-item-page/item-authorizations/item-authorizations.component.ts
+++ b/src/app/item-page/edit-item-page/item-authorizations/item-authorizations.component.ts
@@ -17,7 +17,6 @@ import {
 import {
  catchError,
  filter,
-  first,
  map,
  mergeMap,
  take,
@@ -37,11 +36,11 @@ import {
  getFirstSucceededRemoteDataWithNotEmptyPayload,
 } from '../../../core/shared/operators';
 import { AlertComponent } from '../../../shared/alert/alert.component';
+import { AlertType } from '../../../shared/alert/alert-type';
 import {
  hasValue,
  isNotEmpty,
 } from '../../../shared/empty.util';
-import { NgForTrackByIdDirective } from '../../../shared/ng-for-track-by-id.directive';
 import { ResourcePoliciesComponent } from '../../../shared/resource-policies/resource-policies.component';
 import { followLink } from '../../../shared/utils/follow-link-config.model';

@@ -61,7 +60,6 @@ interface BundleBitstreamsMapEntry {
    ResourcePoliciesComponent,
    NgbCollapseModule,
    TranslateModule,
-    NgForTrackByIdDirective,
    AsyncPipe,
    AlertComponent,
  ],
@@ -88,7 +86,7 @@ export class ItemAuthorizationsComponent implements OnInit, OnDestroy {
   * The target editing item
   * @type {Observable<Item>}
   */
-  private item$: Observable<Item>;
+  item$: Observable<Item>;

  /**
   * Array to track all subscriptions and unsubscribe them onDestroy
@@ -127,16 +125,13 @@ export class ItemAuthorizationsComponent implements OnInit, OnDestroy {
   */
  private bitstreamPageSize = 4;

-  /**
-   * Initialize instance variables
-   *
-   * @param {LinkService} linkService
-   * @param {ActivatedRoute} route
-   * @param nameService
-   */
+  itemName$: Observable<string>;
+
+  readonly AlertType = AlertType;
+
  constructor(
-    private linkService: LinkService,
-    private route: ActivatedRoute,
+    protected linkService: LinkService,
+    protected route: ActivatedRoute,
    public nameService: DSONameService,
  ) {
  }
@@ -146,36 +141,18 @@ export class ItemAuthorizationsComponent implements OnInit, OnDestroy {
   */
  ngOnInit(): void {
    this.getBundlesPerItem();
+    this.itemName$ = this.getItemName();
  }

  /**
-   * Return the item's UUID
+   * Return the item's name
   */
-  getItemUUID(): Observable<string> {
-    return this.item$.pipe(
-      map((item: Item) => item.id),
-      first((UUID: string) => isNotEmpty(UUID)),
-    );
-  }
-
-  /**
- * Return the item's name
- */
-  getItemName(): Observable<string> {
+  private getItemName(): Observable<string> {
    return this.item$.pipe(
      map((item: Item) => this.nameService.getName(item)),
    );
  }

-  /**
-   * Return all item's bundles
-   *
-   * @return an observable that emits all item's bundles
-   */
-  getItemBundles(): Observable<Bundle[]> {
-    return this.bundles$.asObservable();
-  }
-
  /**
   * Get all bundles per item
   * and all the bitstreams per bundle
--- a/src/app/item-page/orcid-page/orcid-auth/orcid-auth.component.html
+++ b/src/app/item-page/orcid-page/orcid-auth/orcid-auth.component.html
@@ -1,16 +1,16 @@
 <div class="container mb-5">
  <h1>{{'person.orcid.registry.auth' | translate}}</h1>
-  @if ((isLinkedToOrcid() | async)) {
+  @if ((isOrcidLinked$ | async)) {
    <div data-test="orcidLinked">
      <div class="row">
-        @if ((hasOrcidAuthorizations() | async)) {
+        @if ((hasOrcidAuthorizations$ | async)) {
          <div class="col-sm-6 mb-3" data-test="hasOrcidAuthorizations">
            <div class="card h-100">
              <div class="card-header">{{ 'person.page.orcid.granted-authorizations'| translate }}</div>
              <div class="card-body">
                <div class="container p-0">
                  <ul>
-                    @for (auth of (getOrcidAuthorizations() | async); track auth) {
+                    @for (auth of (profileAuthorizationScopes$ | async); track auth) {
                      <li data-test="orcidAuthorization">
                        {{getAuthorizationDescription(auth) | translate}}
                      </li>
@@ -26,16 +26,16 @@
            <div class="card-header">{{ 'person.page.orcid.missing-authorizations'| translate }}</div>
            <div class="card-body">
              <div class="container">
-                @if ((hasMissingOrcidAuthorizations() | async) !== true) {
-                  <ds-alert [type]="'alert-success'" data-test="noMissingOrcidAuthorizations">
+                @if ((hasMissingOrcidAuthorizations$ | async) !== true) {
+                  <ds-alert [type]="AlertType.Success" data-test="noMissingOrcidAuthorizations">
                    {{'person.page.orcid.no-missing-authorizations-message' | translate}}
                  </ds-alert>
                }
-                @if ((hasMissingOrcidAuthorizations() | async)) {
-                  <ds-alert [type]="'alert-warning'" data-test="missingOrcidAuthorizations">
+                @if ((hasMissingOrcidAuthorizations$ | async)) {
+                  <ds-alert [type]="AlertType.Warning" data-test="missingOrcidAuthorizations">
                    {{'person.page.orcid.missing-authorizations-message' | translate}}
                    <ul>
-                      @for (auth of (getMissingOrcidAuthorizations() | async); track auth) {
+                      @for (auth of (profileAuthorizationScopes$ | async); track auth) {
                        <li data-test="missingOrcidAuthorization">
                          {{getAuthorizationDescription(auth) | translate }}
                        </li>
@@ -48,13 +48,13 @@
          </div>
        </div>
      </div>
-      @if ((onlyAdminCanDisconnectProfileFromOrcid() | async) && (ownerCanDisconnectProfileFromOrcid() | async) !== true) {
+      @if ((onlyAdminCanDisconnectProfileFromOrcid$ | async) && (ownerCanDisconnectProfileFromOrcid$ | async) !== true) {
        <ds-alert
-          [type]="'alert-warning'" data-test="unlinkOnlyAdmin">
+          [type]="AlertType.Warning" data-test="unlinkOnlyAdmin">
          {{ 'person.page.orcid.remove-orcid-message' | translate}}
        </ds-alert>
      }
-      @if ((ownerCanDisconnectProfileFromOrcid() | async)) {
+      @if ((ownerCanDisconnectProfileFromOrcid$ | async)) {
        <div class="row" data-test="unlinkOwner">
          <div class="col">
            <button type="submit" class="btn btn-danger float-end" (click)="unlinkOrcid()"
@@ -68,7 +68,7 @@
                class='fas fa-circle-notch fa-spin'></i> {{'person.page.orcid.unlink.processing' | translate}}</span>
              }
            </button>
-            @if ((hasMissingOrcidAuthorizations() | async)) {
+            @if ((hasMissingOrcidAuthorizations$ | async)) {
              <button type="submit"
                class="btn btn-primary float-end" (click)="linkOrcid()">
                <span><i class="fas fa-check"></i> {{ 'person.page.orcid.grant-authorizations' | translate }}</span>
@@ -83,7 +83,7 @@
      <div class="row">
        <div class="col-2"><img alt="orcid-logo" src="../../../../assets/images/orcid.logo.icon.svg"/></div>
        <div class="col">
-          <ds-alert [type]="'alert-info'">{{ getOrcidNotLinkedMessage() | async }}</ds-alert>
+          <ds-alert [type]="AlertType.Info">{{ getOrcidNotLinkedMessage() }}</ds-alert>
        </div>
      </div>
      <div class="row">
@@ -97,103 +97,3 @@
    </div>
  }
 </div>
-
-<ng-template #orcidLinked>
-  <div data-test="orcidLinked">
-    <div class="row">
-      @if ((hasOrcidAuthorizations() | async)) {
-        <div class="col-sm-6 mb-3" data-test="hasOrcidAuthorizations">
-          <div class="card h-100">
-            <div class="card-header">{{ 'person.page.orcid.granted-authorizations'| translate }}</div>
-            <div class="card-body">
-              <div class="container p-0">
-                <ul>
-                  @for (auth of (getOrcidAuthorizations() | async); track auth) {
-                    <li data-test="orcidAuthorization">
-                      {{getAuthorizationDescription(auth) | translate}}
-                    </li>
-                  }
-                </ul>
-              </div>
-            </div>
-          </div>
-        </div>
-      }
-      <div class="col-sm-6 mb-3">
-        <div class="card h-100">
-          <div class="card-header">{{ 'person.page.orcid.missing-authorizations'| translate }}</div>
-          <div class="card-body">
-            <div class="container">
-              @if ((hasMissingOrcidAuthorizations() | async) !== true) {
-                <ds-alert [type]="'alert-success'" data-test="noMissingOrcidAuthorizations">
-                  {{'person.page.orcid.no-missing-authorizations-message' | translate}}
-                </ds-alert>
-              }
-              @if ((hasMissingOrcidAuthorizations() | async)) {
-                <ds-alert [type]="'alert-warning'" data-test="missingOrcidAuthorizations">
-                  {{'person.page.orcid.missing-authorizations-message' | translate}}
-                  <ul>
-                    @for (auth of (getMissingOrcidAuthorizations() | async); track auth) {
-                      <li data-test="missingOrcidAuthorization">
-                        {{getAuthorizationDescription(auth) | translate }}
-                      </li>
-                    }
-                  </ul>
-                </ds-alert>
-              }
-            </div>
-          </div>
-        </div>
-      </div>
-    </div>
-    @if ((onlyAdminCanDisconnectProfileFromOrcid() | async) && (ownerCanDisconnectProfileFromOrcid() | async) !== true) {
-      <ds-alert
-        [type]="'alert-warning'" data-test="unlinkOnlyAdmin">
-        {{ 'person.page.orcid.remove-orcid-message' | translate}}
-      </ds-alert>
-    }
-    @if ((ownerCanDisconnectProfileFromOrcid() | async)) {
-      <div class="row" data-test="unlinkOwner">
-        <div class="col">
-          <button type="submit" class="btn btn-danger float-end" (click)="unlinkOrcid()"
-            [dsBtnDisabled]="(unlinkProcessing | async)">
-            @if ((unlinkProcessing | async) !== true) {
-              <span><i
-              class="fas fa-unlink"></i> {{ 'person.page.orcid.unlink' | translate }}</span>
-            }
-            @if ((unlinkProcessing | async)) {
-              <span><i
-              class='fas fa-circle-notch fa-spin'></i> {{'person.page.orcid.unlink.processing' | translate}}</span>
-            }
-          </button>
-          @if ((hasMissingOrcidAuthorizations() | async)) {
-            <button type="submit"
-              class="btn btn-primary float-end" (click)="linkOrcid()">
-              <span><i class="fas fa-check"></i> {{ 'person.page.orcid.grant-authorizations' | translate }}</span>
-            </button>
-          }
-        </div>
-      </div>
-    }
-  </div>
-</ng-template>
-
-<ng-template #orcidNotLinked>
-  <div data-test="orcidNotLinked">
-    <div class="row">
-      <div class="col-2"><img alt="orcid-logo" src="../../../../assets/images/orcid.logo.icon.svg"/></div>
-      <div class="col">
-        <ds-alert [type]="'alert-info'">{{ getOrcidNotLinkedMessage() | async }}</ds-alert>
-      </div>
-    </div>
-    <div class="row">
-      <div class="col">
-        <button class="btn btn-primary float-end" (click)="linkOrcid()">
-          <i class="fas fa-link"></i>
-          {{'person.page.orcid.link' | translate}}
-        </button>
-      </div>
-    </div>
-  </div>
-</ng-template>
-
--- a/src/app/item-page/orcid-page/orcid-auth/orcid-auth.component.ts
+++ b/src/app/item-page/orcid-page/orcid-auth/orcid-auth.component.ts
@@ -30,6 +30,7 @@ import {
 import { Item } from '../../../core/shared/item.model';
 import { getFirstCompletedRemoteData } from '../../../core/shared/operators';
 import { AlertComponent } from '../../../shared/alert/alert.component';
+import { AlertType } from '../../../shared/alert/alert-type';
 import { BtnDisabledDirective } from '../../../shared/btn-disabled.directive';
 import { NotificationsService } from '../../../shared/notifications/notifications.service';
 import { createFailedRemoteDataObjectFromError$ } from '../../../shared/remote-data.utils';
@@ -56,43 +57,49 @@ export class OrcidAuthComponent implements OnInit, OnChanges {
  /**
   * The list of exposed orcid authorization scopes for the orcid profile
   */
-  profileAuthorizationScopes: BehaviorSubject<string[]> = new BehaviorSubject<string[]>([]);
+  profileAuthorizationScopes$: BehaviorSubject<string[]> = new BehaviorSubject([]);
+
+  hasOrcidAuthorizations$: Observable<boolean>;

  /**
   * The list of all orcid authorization scopes missing in the orcid profile
   */
-  missingAuthorizationScopes: BehaviorSubject<string[]> = new BehaviorSubject<string[]>([]);
+  missingAuthorizationScopes: BehaviorSubject<string[]> = new BehaviorSubject([]);
+
+  hasMissingOrcidAuthorizations$: Observable<boolean>;

  /**
   * The list of all orcid authorization scopes available
   */
-  orcidAuthorizationScopes: BehaviorSubject<string[]> = new BehaviorSubject<string[]>([]);
+  orcidAuthorizationScopes: BehaviorSubject<string[]> = new BehaviorSubject([]);

  /**
   * A boolean representing if unlink operation is processing
   */
-  unlinkProcessing: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);
+  unlinkProcessing: BehaviorSubject<boolean> = new BehaviorSubject(false);

  /**
   * A boolean representing if orcid profile is linked
   */
-  private isOrcidLinked$: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);
+  isOrcidLinked$: BehaviorSubject<boolean> = new BehaviorSubject(false);

  /**
   * A boolean representing if only admin can disconnect orcid profile
   */
-  private onlyAdminCanDisconnectProfileFromOrcid$: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);
+  onlyAdminCanDisconnectProfileFromOrcid$: BehaviorSubject<boolean> = new BehaviorSubject(false);

  /**
   * A boolean representing if owner can disconnect orcid profile
   */
-  private ownerCanDisconnectProfileFromOrcid$: BehaviorSubject<boolean> = new BehaviorSubject<boolean>(false);
+  ownerCanDisconnectProfileFromOrcid$: BehaviorSubject<boolean> = new BehaviorSubject(false);

  /**
   * An event emitted when orcid profile is unliked successfully
   */
  @Output() unlink: EventEmitter<void> = new EventEmitter<void>();

+  readonly AlertType = AlertType;
+
  constructor(
    private orcidAuthService: OrcidAuthService,
    private translateService: TranslateService,
@@ -106,6 +113,8 @@ export class OrcidAuthComponent implements OnInit, OnChanges {
      this.orcidAuthorizationScopes.next(scopes);
      this.initOrcidAuthSettings();
    });
+    this.hasOrcidAuthorizations$ = this.hasOrcidAuthorizations();
+    this.hasMissingOrcidAuthorizations$ = this.hasMissingOrcidAuthorizations();
  }

  ngOnChanges(changes: SimpleChanges): void {
@@ -118,18 +127,11 @@ export class OrcidAuthComponent implements OnInit, OnChanges {
   * Check if the list of exposed orcid authorization scopes for the orcid profile has values
   */
  hasOrcidAuthorizations(): Observable<boolean> {
-    return this.profileAuthorizationScopes.asObservable().pipe(
+    return this.profileAuthorizationScopes$.pipe(
      map((scopes: string[]) => scopes.length > 0),
    );
  }

-  /**
-   * Return the list of exposed orcid authorization scopes for the orcid profile
-   */
-  getOrcidAuthorizations(): Observable<string[]> {
-    return this.profileAuthorizationScopes.asObservable();
-  }
-
  /**
   * Check if the list of exposed orcid authorization scopes for the orcid profile has values
   */
@@ -139,26 +141,12 @@ export class OrcidAuthComponent implements OnInit, OnChanges {
    );
  }

-  /**
-   * Return the list of exposed orcid authorization scopes for the orcid profile
-   */
-  getMissingOrcidAuthorizations(): Observable<string[]> {
-    return this.profileAuthorizationScopes.asObservable();
-  }
-
-  /**
-   * Return a boolean representing if orcid profile is linked
-   */
-  isLinkedToOrcid(): Observable<boolean> {
-    return this.isOrcidLinked$.asObservable();
-  }
-
-  getOrcidNotLinkedMessage(): Observable<string> {
+  getOrcidNotLinkedMessage(): string {
    const orcid = this.item.firstMetadataValue('person.identifier.orcid');
    if (orcid) {
-      return this.translateService.get('person.page.orcid.orcid-not-linked-message', { 'orcid': orcid });
+      return this.translateService.instant('person.page.orcid.orcid-not-linked-message', { 'orcid': orcid });
    } else {
-      return this.translateService.get('person.page.orcid.no-orcid-message');
+      return this.translateService.instant('person.page.orcid.no-orcid-message');
    }
  }

@@ -171,13 +159,6 @@ export class OrcidAuthComponent implements OnInit, OnChanges {
    return 'person.page.orcid.scope.' + scope.substring(1).replace('/', '-');
  }

-  /**
-   * Return a boolean representing if only admin can disconnect orcid profile
-   */
-  onlyAdminCanDisconnectProfileFromOrcid(): Observable<boolean> {
-    return this.onlyAdminCanDisconnectProfileFromOrcid$.asObservable();
-  }
-
  /**
   * Return a boolean representing if owner can disconnect orcid profile
   */
@@ -243,7 +224,7 @@ export class OrcidAuthComponent implements OnInit, OnChanges {
  }

  private setOrcidAuthorizationsFromItem(): void {
-    this.profileAuthorizationScopes.next(this.orcidAuthService.getOrcidAuthorizationScopesByItem(this.item));
+    this.profileAuthorizationScopes$.next(this.orcidAuthService.getOrcidAuthorizationScopesByItem(this.item));
  }

 }
--- a/src/app/item-page/orcid-page/orcid-queue/orcid-queue.component.html
+++ b/src/app/item-page/orcid-page/orcid-queue/orcid-queue.component.html
@@ -5,16 +5,16 @@
  <div class="container">
    <h2>{{ 'person.orcid.registry.queue' | translate }}</h2>

-    @if ((processing$ | async) !== true && (getList() | async)?.payload?.totalElements === 0) {
+    @if ((processing$ | async) !== true && (list$ | async)?.payload?.totalElements === 0) {
      <ds-alert
        [type]="AlertTypeEnum.Info">
        {{ 'person.page.orcid.sync-queue.empty-message' | translate}}
      </ds-alert>
    }
-    @if ((processing$ | async) !== true && (getList() | async)?.payload?.totalElements > 0) {
+    @if ((processing$ | async) !== true && (list$ | async)?.payload?.totalElements > 0) {
      <ds-pagination
        [paginationOptions]="paginationOptions"
-        [collectionSize]="(getList() | async)?.payload?.totalElements"
+        [collectionSize]="(list$ | async)?.payload?.totalElements"
        [retainScrollPosition]="false" [hideGear]="true" (paginationChange)="updateList()">
        <div class="table-responsive">
          <table id="groups" class="table table-sm table-striped table-hover table-bordered">
@@ -26,7 +26,7 @@
              </tr>
            </thead>
            <tbody>
-              @for (entry of (getList() | async)?.payload?.page; track entry) {
+              @for (entry of (list$ | async)?.payload?.page; track entry) {
                <tr data-test="orcidQueueElementRow">
                  <td style="width: 15%" class="text-center align-middle">
                    <i [ngClass]="getIconClass(entry)" [ngbTooltip]="getIconTooltip(entry) | translate"
--- a/src/app/item-page/orcid-page/orcid-queue/orcid-queue.component.ts
+++ b/src/app/item-page/orcid-page/orcid-queue/orcid-queue.component.ts
@@ -80,13 +80,12 @@ export class OrcidQueueComponent implements OnInit, OnDestroy, OnChanges {
  /**
   * A list of orcid queue records
   */
-  private list$: BehaviorSubject<RemoteData<PaginatedList<OrcidQueue>>> = new BehaviorSubject<RemoteData<PaginatedList<OrcidQueue>>>({} as any);
+  list$: BehaviorSubject<RemoteData<PaginatedList<OrcidQueue>>> = new BehaviorSubject<RemoteData<PaginatedList<OrcidQueue>>>({} as any);

  /**
   * The AlertType enumeration
-   * @type {AlertType}
   */
-  AlertTypeEnum = AlertType;
+  readonly AlertTypeEnum = AlertType;

  /**
   * Array to track all subscriptions and unsubscribe them onDestroy
@@ -132,13 +131,6 @@ export class OrcidQueueComponent implements OnInit, OnDestroy, OnChanges {
    );
  }

-  /**
-   * Return the list of orcid queue records
-   */
-  getList(): Observable<RemoteData<PaginatedList<OrcidQueue>>> {
-    return this.list$.asObservable();
-  }
-
  /**
   * Return the icon class for the queue object type
   *
--- a/src/app/navbar/navbar.component.html
+++ b/src/app/navbar/navbar.component.html
@@ -1,5 +1,5 @@
 <nav [ngClass]="{'open': (menuCollapsed | async) !== true}"
-  [@slideMobileNav]="(windowService.isXsOrSm() | async) !== true ? 'default' : ((menuCollapsed | async) ? 'collapsed' : 'expanded')"
+  [@slideMobileNav]="(isMobile$ | async) !== true ? 'default' : ((menuCollapsed | async) ? 'collapsed' : 'expanded')"
  class="navbar navbar-light navbar-expand-md px-md-0 navbar-container" role="navigation"
  [attr.aria-label]="'nav.main.description' | translate" id="main-navbar">
  <!-- TODO remove navbar-container class when https://github.com/twbs/bootstrap/issues/24726 is fixed -->
--- a/src/app/process-page/overview/process-overview.component.html
+++ b/src/app/process-page/overview/process-overview.component.html
@@ -62,20 +62,20 @@ class="fas fa-plus pe-2"></i>{{'process.overview.new' | translate}}</button>
    </div>

    <div class="modal-body">
-      @if ((processBulkDeleteService.isProcessing$() | async) !== true) {
-        <div>{{'process.overview.delete.body' | translate: {count: processBulkDeleteService.getAmountOfSelectedProcesses()} }}</div>
-      }
-      @if (processBulkDeleteService.isProcessing$() |async) {
+      @let isProcessing = (isProcessing$ | async);
+      @if (isProcessing) {
        <div class="alert alert-info">
          <span class="spinner-border spinner-border-sm spinner-button" role="status" aria-hidden="true"></span>
          <span> {{ 'process.overview.delete.processing' | translate: {count: processBulkDeleteService.getAmountOfSelectedProcesses()} }}</span>
        </div>
+      } @else {
+        <div>{{'process.overview.delete.body' | translate: {count: processBulkDeleteService.getAmountOfSelectedProcesses()} }}</div>
      }
      <div class="mt-4">
-        <button class="btn btn-primary me-2" [dsBtnDisabled]="processBulkDeleteService.isProcessing$() |async"
+        <button class="btn btn-primary me-2" [dsBtnDisabled]="isProcessing"
        (click)="closeModal()">{{'process.detail.delete.cancel' | translate}}</button>
        <button id="delete-confirm" class="btn btn-danger"
-          [dsBtnDisabled]="processBulkDeleteService.isProcessing$() |async"
+          [dsBtnDisabled]="isProcessing"
          (click)="deleteSelected()">{{ 'process.overview.delete' | translate: {count: processBulkDeleteService.getAmountOfSelectedProcesses()}  }}
        </button>
      </div>
--- a/src/app/process-page/overview/process-overview.component.ts
+++ b/src/app/process-page/overview/process-overview.component.ts
@@ -12,7 +12,10 @@ import {
 import { RouterLink } from '@angular/router';
 import { NgbModal } from '@ng-bootstrap/ng-bootstrap';
 import { TranslateModule } from '@ngx-translate/core';
-import { Subscription } from 'rxjs';
+import {
+  Observable,
+  Subscription,
+} from 'rxjs';

 import { BtnDisabledDirective } from '../../shared/btn-disabled.directive';
 import { hasValue } from '../../shared/empty.util';
@@ -45,6 +48,8 @@ export class ProcessOverviewComponent implements OnInit, OnDestroy {

  isProcessingSub: Subscription;

+  isProcessing$: Observable<boolean>;
+
  constructor(protected processOverviewService: ProcessOverviewService,
              protected modalService: NgbModal,
              public processBulkDeleteService: ProcessBulkDeleteService,
@@ -53,6 +58,7 @@ export class ProcessOverviewComponent implements OnInit, OnDestroy {

  ngOnInit(): void {
    this.processBulkDeleteService.clearAllProcesses();
+    this.isProcessing$ = this.processBulkDeleteService.isProcessing$();
  }

  ngOnDestroy(): void {
--- a/src/app/profile-page/profile-page-researcher-form/profile-page-researcher-form.component.html
+++ b/src/app/profile-page/profile-page-researcher-form/profile-page-researcher-form.component.html
@@ -17,15 +17,15 @@
    </div>
  }
  @if (!researcherProfile) {
+    @let processingCreate = (processingCreate$ | async);
    <button class="btn btn-primary me-2"
-      [dsBtnDisabled]="(isProcessingCreate() | async)"
+      [dsBtnDisabled]="processingCreate"
      (click)="createProfile()">
-      @if ((isProcessingCreate() | async)) {
+      @if (processingCreate) {
        <span>
          <i class='fas fa-circle-notch fa-spin'></i> {{'researcher.profile.action.processing' | translate}}
        </span>
-      }
-      @if ((isProcessingCreate() | async) !== true) {
+      } @else {
        <span>
          <i class="fas fa-plus"></i> &nbsp;{{'researcher.profile.create.new' | translate}}
        </span>
@@ -37,12 +37,11 @@
      <i class="fas fa-info-circle"></i> {{'researcher.profile.view' | translate}}
    </button>
    <button class="btn btn-danger" [dsBtnDisabled]="!researcherProfile" (click)="deleteProfile(researcherProfile)">
-      @if ((isProcessingDelete() | async)) {
+      @if ((processingDelete$ | async)) {
        <span>
          <i class='fas fa-circle-notch fa-spin'></i> {{'researcher.profile.action.processing' | translate}}
        </span>
-      }
-      @if ((isProcessingDelete() | async) !== true) {
+      } @else {
        <span>
          <i class="fas fa-trash-alt"></i> &nbsp;{{'researcher.profile.delete' | translate}}
        </span>
--- a/src/app/profile-page/profile-page-researcher-form/profile-page-researcher-form.component.ts
+++ b/src/app/profile-page/profile-page-researcher-form/profile-page-researcher-form.component.ts
@@ -11,10 +11,7 @@ import {
  TranslateService,
 } from '@ngx-translate/core';
 import { UiSwitchModule } from 'ngx-ui-switch';
-import {
-  BehaviorSubject,
-  Observable,
-} from 'rxjs';
+import { BehaviorSubject } from 'rxjs';
 import {
  map,
  mergeMap,
@@ -187,24 +184,6 @@ export class ProfilePageResearcherFormComponent implements OnInit {
    });
  }

-  /**
-   * Return a boolean representing if a delete operation is pending.
-   *
-   * @return {Observable<boolean>}
-   */
-  isProcessingDelete(): Observable<boolean> {
-    return this.processingDelete$.asObservable();
-  }
-
-  /**
-   * Return a boolean representing if a create operation is pending.
-   *
-   * @return {Observable<boolean>}
-   */
-  isProcessingCreate(): Observable<boolean> {
-    return this.processingCreate$.asObservable();
-  }
-
  /**
   * Create a new profile related to the current user from scratch.
   */
--- a/src/app/register-email-form/register-email-form.component.html
+++ b/src/app/register-email-form/register-email-form.component.html
@@ -54,15 +54,15 @@
      </ds-alert>
    }

-    @if (isRecaptchaCookieAccepted() && (googleRecaptchaService.captchaVersion() | async) === 'v2') {
+    @if (isRecaptchaCookieAccepted() && (captchaVersion$ | async) === 'v2') {
      <div class="my-3">
-        <ds-google-recaptcha [captchaMode]="(googleRecaptchaService.captchaMode() | async)"
+        <ds-google-recaptcha [captchaMode]="(captchaMode$ | async)"
          (executeRecaptcha)="register($event)" (checkboxChecked)="onCheckboxChecked($event)"
        (showNotification)="showNotification($event)"></ds-google-recaptcha>
      </div>
    }

-    @if ((!registrationVerification  || ((googleRecaptchaService.captchaVersion() | async) !== 'v2' && (googleRecaptchaService.captchaMode() | async) === 'invisible'))) {
+    @if ((!registrationVerification  || ((captchaVersion$ | async) !== 'v2' && (captchaMode$ | async) === 'invisible'))) {
      <button class="btn btn-primary" [dsBtnDisabled]="form.invalid || registrationVerification && !isRecaptchaCookieAccepted() || disableUntilChecked" (click)="register()">
        {{ MESSAGE_PREFIX + '.submit' | translate }}
      </button>
--- a/src/app/register-email-form/register-email-form.component.ts
+++ b/src/app/register-email-form/register-email-form.component.ts
@@ -107,13 +107,9 @@ export class RegisterEmailFormComponent implements OnDestroy, OnInit {

  subscriptions: Subscription[] = [];

-  captchaVersion(): Observable<string> {
-    return this.googleRecaptchaService.captchaVersion();
-  }
+  captchaVersion$: Observable<string>;

-  captchaMode(): Observable<string> {
-    return this.googleRecaptchaService.captchaMode();
-  }
+  captchaMode$: Observable<string>;

  constructor(
    private epersonRegistrationService: EpersonRegistrationService,
@@ -135,6 +131,8 @@ export class RegisterEmailFormComponent implements OnDestroy, OnInit {
  }

  ngOnInit(): void {
+    this.captchaVersion$ = this.googleRecaptchaService.captchaVersion();
+    this.captchaMode$ = this.googleRecaptchaService.captchaMode();
    const validators: ValidatorFn[] = [
      Validators.required,
      Validators.email,
@@ -191,7 +189,7 @@ export class RegisterEmailFormComponent implements OnDestroy, OnInit {
  register(tokenV2?) {
    if (!this.form.invalid) {
      if (this.registrationVerification) {
-        this.subscriptions.push(combineLatest([this.captchaVersion(), this.captchaMode()]).pipe(
+        this.subscriptions.push(combineLatest([this.captchaVersion$, this.captchaMode$]).pipe(
          switchMap(([captchaVersion, captchaMode])  => {
            if (captchaVersion === 'v3') {
              return this.googleRecaptchaService.getRecaptchaToken('register_email');
@@ -254,7 +252,7 @@ export class RegisterEmailFormComponent implements OnDestroy, OnInit {
   */
  disableUntilCheckedFcn(): Observable<boolean> {
    const checked$ = this.checkboxCheckedSubject$.asObservable();
-    return combineLatest([this.captchaVersion(), this.captchaMode(), checked$]).pipe(
+    return combineLatest([this.captchaVersion$, this.captchaMode$, checked$]).pipe(
      // disable if checkbox is not checked or if reCaptcha is not in v2 checkbox mode
      switchMap(([captchaVersion, captchaMode, checked])  => captchaVersion === 'v2' && captchaMode === 'checkbox' ? of(!checked) : of(false)),
      startWith(true),
--- a/src/app/shared/eperson-group-list/eperson-group-list.component.html
+++ b/src/app/shared/eperson-group-list/eperson-group-list.component.html
@@ -1,15 +1,15 @@
 <div class="mt-3" @fadeInOut>
  @if (isListOfEPerson) {
    <ds-eperson-search-box (search)="onSearch($event)"></ds-eperson-search-box>
-  }
-  @if (!isListOfEPerson) {
+  } @else {
    <ds-group-search-box (search)="onSearch($event)"></ds-group-search-box>
  }

-  @if ((getList() | async)?.payload?.totalElements > 0) {
+  @let list = (list$ | async);
+  @if (list && list.totalElements > 0) {
    <ds-pagination
      [paginationOptions]="paginationOptions"
-      [collectionSize]="(getList() | async)?.payload?.totalElements"
+      [collectionSize]="list.totalElements"
      [retainScrollPosition]="true"
      [hideGear]="true">
      <div class="table-responsive">
@@ -22,11 +22,10 @@
            </tr>
          </thead>
          <tbody>
-            @for (entry of (getList() | async)?.payload?.page; track entry) {
-              <tr
-                [class.table-primary]="isSelected(entry) | async">
-                <td>{{entry.id}}</td>
-                <td>{{dsoNameService.getName(entry)}}</td>
+            @for (entry of list.page; track entry) {
+              <tr [class.table-primary]="(entrySelectedId$ | async) === entry.id">
+                <td>{{ entry.id }}</td>
+                <td>{{ dsoNameService.getName(entry) }}</td>
                <td class="text-center">
                  <button class="btn btn-sm btn-outline-primary" (click)="emitSelect(entry)">
                    {{'resource-policies.form.eperson-group-list.select.btn' | translate}}
--- a/src/app/shared/eperson-group-list/eperson-group-list.component.spec.ts
+++ b/src/app/shared/eperson-group-list/eperson-group-list.component.spec.ts
@@ -13,7 +13,7 @@ import {
 } from '@angular/core/testing';
 import { NoopAnimationsModule } from '@angular/platform-browser/animations';
 import { TranslateModule } from '@ngx-translate/core';
-import { cold } from 'jasmine-marbles';
+import { hot } from 'jasmine-marbles';
 import uniqueId from 'lodash/uniqueId';
 import { of as observableOf } from 'rxjs';

@@ -49,14 +49,13 @@ const mockDataServiceMap: LazyDataServicesMap = new Map([
  [GROUP.value, () => import('../../core/eperson/group-data.service').then(m => m.GroupDataService)],
 ]);

-describe('EpersonGroupListComponent test suite', () => {
+describe('EpersonGroupListComponent', () => {
  let comp: EpersonGroupListComponent;
  let compAsAny: any;
  let fixture: ComponentFixture<EpersonGroupListComponent>;
-  let de;
  let groupService: any;
  let epersonService: any;
-  let paginationService;
+  let paginationService: PaginationServiceStub;

  const paginationOptions: PaginationComponentOptions = new PaginationComponentOptions();
  paginationOptions.id = uniqueId('eperson-group-list-pagination-test');
@@ -129,7 +128,6 @@ describe('EpersonGroupListComponent test suite', () => {
  }));

  describe('', () => {
-    let testComp: TestComponent;
    let testFixture: ComponentFixture<TestComponent>;

    // synchronous beforeEach
@@ -139,7 +137,6 @@ describe('EpersonGroupListComponent test suite', () => {
        <ds-eperson-group-list [isListOfEPerson]="isListOfEPerson" [initSelected]="initSelected"></ds-eperson-group-list>`;

      testFixture = createTestComponent(html, TestComponent) as ComponentFixture<TestComponent>;
-      testComp = testFixture.componentInstance;
    });

    afterEach(() => {
@@ -167,7 +164,6 @@ describe('EpersonGroupListComponent test suite', () => {
    afterEach(() => {
      comp = null;
      compAsAny = null;
-      de = null;
      fixture.destroy();
    });

@@ -181,29 +177,25 @@ describe('EpersonGroupListComponent test suite', () => {
      });
    }));

-    it('should init entrySelectedId', fakeAsync(() => {
+    it('should init entrySelectedId', fakeAsync(async () => {
      spyOn(comp, 'updateList');
      comp.initSelected = EPersonMock.id;

      fixture.detectChanges();

-      fixture.whenStable().then(() => {
-        expect(compAsAny.entrySelectedId.value).toBe(EPersonMock.id);
-      });
-
+      await fixture.whenStable();
+      expect(comp.entrySelectedId$.value).toBe(EPersonMock.id);
    }));

-    it('should init the list of eperson', fakeAsync(() => {
+    it('should init the list of eperson', fakeAsync(async () => {
      epersonService.searchByScope.and.returnValue(observableOf(epersonPaginatedListRD));

      fixture.detectChanges();

-      fixture.whenStable().then(() => {
-        expect(compAsAny.list$.value).toEqual(epersonPaginatedListRD);
-        expect(comp.getList()).toBeObservable(cold('a', {
-          a: epersonPaginatedListRD,
-        }));
-      });
+      await fixture.whenStable();
+      expect(comp.list$).toBeObservable(hot('(a|)', {
+        a: epersonPaginatedList,
+      }));
    }));

    it('should emit select event', () => {
@@ -211,23 +203,13 @@ describe('EpersonGroupListComponent test suite', () => {
      comp.emitSelect(EPersonMock);

      expect(comp.select.emit).toHaveBeenCalled();
-      expect(compAsAny.entrySelectedId.value).toBe(EPersonMock.id);
+      expect(comp.entrySelectedId$.value).toBe(EPersonMock.id);
    });

-    it('should return true when entry is selected', () => {
-      compAsAny.entrySelectedId.next(EPersonMock.id);
+    it('should return the entrySelectedId$ value', () => {
+      comp.entrySelectedId$.next(EPersonMock.id);

-      expect(comp.isSelected(EPersonMock)).toBeObservable(cold('a', {
-        a: true,
-      }));
-    });
-
-    it('should return false when entry is not selected', () => {
-      compAsAny.entrySelectedId.next('');
-
-      expect(comp.isSelected(EPersonMock)).toBeObservable(cold('a', {
-        a: false,
-      }));
+      expect(comp.entrySelectedId$.value).toBe(EPersonMock.id);
    });
  });

@@ -245,7 +227,6 @@ describe('EpersonGroupListComponent test suite', () => {
    afterEach(() => {
      comp = null;
      compAsAny = null;
-      de = null;
      fixture.destroy();
    });

@@ -260,27 +241,24 @@ describe('EpersonGroupListComponent test suite', () => {

    }));

-    it('should init entrySelectedId', fakeAsync(() => {
+    it('should init entrySelectedId', fakeAsync(async () => {
      spyOn(comp, 'updateList');
      comp.initSelected = GroupMock.id;

      fixture.detectChanges();

-      fixture.whenStable().then(() => {
-        expect(compAsAny.entrySelectedId.value).toBe(GroupMock.id);
-      });
+      await fixture.whenStable();
+      expect(comp.entrySelectedId$.value).toBe(GroupMock.id);
    }));

-    it('should init the list of group', fakeAsync(() => {
+    it('should init the list of group', fakeAsync(async () => {
      groupService.searchGroups.and.returnValue(observableOf(groupPaginatedListRD));
      fixture.detectChanges();

-      fixture.whenStable().then(() => {
-        expect(compAsAny.list$.value).toEqual(groupPaginatedListRD);
-        expect(comp.getList()).toBeObservable(cold('a', {
-          a: groupPaginatedListRD,
-        }));
-      });
+      await fixture.whenStable();
+      expect(comp.list$).toBeObservable(hot('(a|)', {
+        a: groupPaginatedList,
+      }));
    }));

    it('should emit select event', () => {
@@ -288,27 +266,16 @@ describe('EpersonGroupListComponent test suite', () => {
      comp.emitSelect(GroupMock);

      expect(comp.select.emit).toHaveBeenCalled();
-      expect(compAsAny.entrySelectedId.value).toBe(GroupMock.id);
+      expect(comp.entrySelectedId$.value).toBe(GroupMock.id);
    });

-    it('should return true when entry is selected', () => {
-      compAsAny.entrySelectedId.next(EPersonMock.id);
+    it('should return the entrySelectedId$ value', () => {
+      comp.entrySelectedId$.next(GroupMock.id);

-      expect(comp.isSelected(EPersonMock)).toBeObservable(cold('a', {
-        a: true,
-      }));
-    });
-
-    it('should return false when entry is not selected', () => {
-      compAsAny.entrySelectedId.next('');
-
-      expect(comp.isSelected(EPersonMock)).toBeObservable(cold('a', {
-        a: false,
-      }));
+      expect(comp.entrySelectedId$.value).toBe(GroupMock.id);
    });

    it('should update list on search triggered', () => {
-      const options: PaginationComponentOptions = comp.paginationOptions;
      const event: SearchEvent = {
        scope: 'metadata',
        query: 'test',
@@ -316,7 +283,7 @@ describe('EpersonGroupListComponent test suite', () => {
      spyOn(comp, 'updateList');
      comp.onSearch(event);

-      expect(compAsAny.updateList).toHaveBeenCalledWith('metadata', 'test');
+      expect(comp.updateList).toHaveBeenCalledWith('metadata', 'test');
    });
  });
 });
--- a/src/app/shared/eperson-group-list/eperson-group-list.component.ts
+++ b/src/app/shared/eperson-group-list/eperson-group-list.component.ts
@@ -14,9 +14,8 @@ import uniqueId from 'lodash/uniqueId';
 import {
  BehaviorSubject,
  Observable,
-  Subscription,
 } from 'rxjs';
-import { map } from 'rxjs/operators';
+import { switchMap } from 'rxjs/operators';

 import {
  APP_DATA_SERVICES_MAP,
@@ -25,21 +24,21 @@ import {
 import { DSONameService } from '../../core/breadcrumbs/dso-name.service';
 import { FindListOptions } from '../../core/data/find-list-options.model';
 import { PaginatedList } from '../../core/data/paginated-list.model';
-import { RemoteData } from '../../core/data/remote-data';
 import { EPersonDataService } from '../../core/eperson/eperson-data.service';
 import { GroupDataService } from '../../core/eperson/group-data.service';
+import { EPerson } from '../../core/eperson/models/eperson.model';
 import { EPERSON } from '../../core/eperson/models/eperson.resource-type';
+import { Group } from '../../core/eperson/models/group.model';
 import { GROUP } from '../../core/eperson/models/group.resource-type';
 import { lazyDataService } from '../../core/lazy-data-service';
 import { PaginationService } from '../../core/pagination/pagination.service';
 import { DSpaceObject } from '../../core/shared/dspace-object.model';
-import { getFirstCompletedRemoteData } from '../../core/shared/operators';
+import {
+  getFirstCompletedRemoteData,
+  getRemoteDataPayload,
+} from '../../core/shared/operators';
 import { ResourceType } from '../../core/shared/resource-type';
 import { fadeInOut } from '../animations/fade';
-import {
-  hasValue,
-  isNotEmpty,
-} from '../empty.util';
 import { PaginationComponent } from '../pagination/pagination.component';
 import { PaginationComponentOptions } from '../pagination/pagination-component-options.model';
 import { SearchEvent } from './eperson-group-list-event-type';
@@ -101,21 +100,13 @@ export class EpersonGroupListComponent implements OnInit, OnDestroy {
  /**
   * A list of eperson or group
   */
-  private list$: BehaviorSubject<RemoteData<PaginatedList<DSpaceObject>>> = new BehaviorSubject<RemoteData<PaginatedList<DSpaceObject>>>({} as any);
+  list$: Observable<PaginatedList<EPerson | Group>>;

  /**
   * The eperson or group's id selected
   * @type {string}
   */
-  private entrySelectedId: BehaviorSubject<string> = new BehaviorSubject<string>('');
-
-  /**
-   * Array to track all subscriptions and unsubscribe them onDestroy
-   * @type {Array}
-   */
-  private subs: Subscription[] = [];
-
-  private pageConfigSub: Subscription;
+  entrySelectedId$: BehaviorSubject<string> = new BehaviorSubject('');

  /**
   * Initialize instance variables and inject the properly UpdateDataServiceImpl
@@ -143,7 +134,7 @@ export class EpersonGroupListComponent implements OnInit, OnDestroy {
      this.paginationOptions.pageSize = 5;

      if (this.initSelected) {
-        this.entrySelectedId.next(this.initSelected);
+        this.entrySelectedId$.next(this.initSelected);
      }

      this.updateList(this.currentSearchScope, this.currentSearchQuery);
@@ -158,28 +149,9 @@ export class EpersonGroupListComponent implements OnInit, OnDestroy {
   */
  emitSelect(entry: DSpaceObject): void {
    this.select.emit(entry);
-    this.entrySelectedId.next(entry.id);
+    this.entrySelectedId$.next(entry.id);
  }

-  /**
-   * Return the list of eperson or group
-   */
-  getList(): Observable<RemoteData<PaginatedList<DSpaceObject>>> {
-    return this.list$.asObservable();
-  }
-
-  /**
-   * Return a boolean representing if a table row is selected
-   *
-   * @return {boolean}
-   */
-  isSelected(entry: DSpaceObject): Observable<boolean> {
-    return this.entrySelectedId.asObservable().pipe(
-      map((selectedId) => isNotEmpty(selectedId) && selectedId === entry.id),
-    );
-  }
-
-
  /**
   * Method called on search
   */
@@ -194,38 +166,26 @@ export class EpersonGroupListComponent implements OnInit, OnDestroy {
   * Retrieve a paginate list of eperson or group
   */
  updateList(scope: string, query: string): void {
-    if (hasValue(this.pageConfigSub)) {
-      this.pageConfigSub.unsubscribe();
-    }
-    this.pageConfigSub = this.paginationService.getCurrentPagination(this.paginationOptions.id, this.paginationOptions)
-      .subscribe((paginationOptions) => {
-        const options: FindListOptions = Object.assign({}, new FindListOptions(), {
+    this.list$ = this.paginationService.getCurrentPagination(this.paginationOptions.id, this.paginationOptions).pipe(
+      switchMap((paginationOptions) => {
+        const options: FindListOptions = Object.assign(new FindListOptions(), {
          elementsPerPage: paginationOptions.pageSize,
          currentPage: paginationOptions.currentPage,
        });

-        const search$: Observable<RemoteData<PaginatedList<DSpaceObject>>> = this.isListOfEPerson ?
+        return this.isListOfEPerson ?
          (this.dataService as EPersonDataService).searchByScope(scope, query, options) :
          (this.dataService as GroupDataService).searchGroups(query, options);
-
-        this.subs.push(search$.pipe(getFirstCompletedRemoteData())
-          .subscribe((list: RemoteData<PaginatedList<DSpaceObject>>) => {
-            if (hasValue(this.list$)) {
-              this.list$.next(list);
-            }
-          }),
-        );
-      });
+      }),
+      getFirstCompletedRemoteData(),
+      getRemoteDataPayload(),
+    );
  }

  /**
   * Unsubscribe from all subscriptions
   */
  ngOnDestroy(): void {
-    this.list$ = null;
-    this.subs
-      .filter((subscription) => hasValue(subscription))
-      .forEach((subscription) => subscription.unsubscribe());
    this.paginationService.clearPagination(this.paginationOptions.id);
  }

--- a/src/app/shared/host-window.service.ts
+++ b/src/app/shared/host-window.service.ts
@@ -147,10 +147,10 @@ export class HostWindowService {
  }

  isXsOrSm(): Observable<boolean> {
-    return observableCombineLatest(
+    return observableCombineLatest([
      this.isXs(),
      this.isSm(),
-    ).pipe(
+    ]).pipe(
      map(([isXs, isSm]) => isXs || isSm),
      distinctUntilChanged(),
    );
--- a/src/app/shared/pagination/pagination.component.html
+++ b/src/app/shared/pagination/pagination.component.html
@@ -51,7 +51,7 @@
      </div>
    }
    <ng-content></ng-content>
-    @if (shouldShowBottomPager | async) {
+    @if (showBottomPager$ | async) {
      <div>
        @if (showPaginator) {
          <div class="pagination justify-content-center clearfix bottom">
--- a/src/app/shared/pagination/pagination.component.ts
+++ b/src/app/shared/pagination/pagination.component.ts
@@ -226,6 +226,11 @@ export class PaginationComponent implements OnChanges, OnDestroy, OnInit {

  public showingDetails$: Observable<PaginationDetails>;

+  /**
+   * Whether the current pagination should show a bottom pages
+   */
+  showBottomPager$: Observable<boolean>;
+
  /**
   * Array to track all subscriptions and unsubscribe them onDestroy
   * @type {Array}
@@ -255,7 +260,7 @@ export class PaginationComponent implements OnChanges, OnDestroy, OnInit {
  }

  ngOnChanges(changes: SimpleChanges): void {
-    if (changes.collectionSize.currentValue !== changes.collectionSize.previousValue) {
+    if (hasValue(changes.collectionSize)) {
      this.showingDetails$ = this.getShowingDetails(this.collectionSize);
    }
  }
@@ -294,6 +299,7 @@ export class PaginationComponent implements OnChanges, OnDestroy, OnInit {
    this.sortField$ = this.paginationService.getCurrentSort(this.id, sortOptions).pipe(
      map((currentSort) => currentSort.field),
    );
+    this.showBottomPager$ = this.shouldShowBottomPager;
  }

  constructor(
--- a/src/app/submission/form/section-add/submission-form-section-add.component.html
+++ b/src/app/submission/form/section-add/submission-form-section-add.component.html
@@ -2,12 +2,12 @@
  #sectionAdd="ngbDropdown"
  placement="bottom-right"
  class="d-inline-block"
-  [ngClass]="{'w-100': windowService.isXs()}">
+  [ngClass]="{'w-100': isXs$}">
  @if (hasSections$ | async) {
    <button class="btn btn-outline-primary dropdown-toggle"
      id="sectionControls"
      [dsBtnDisabled]="(hasSections$ | async) !== true"
-      [ngClass]="{'w-100': (windowService.isXs() | async)}"
+      [ngClass]="{'w-100': (isXs$ | async)}"
      ngbDropdownToggle>
      {{ 'submission.sections.general.add-more' | translate }} <i class="fa fa-plus" aria-hidden="true"></i>
    </button>
@@ -15,7 +15,7 @@
  <div ngbDropdownMenu
    class="sections-dropdown-menu"
    aria-labelledby="sectionControls"
-    [ngClass]="{'w-100': (windowService.isXs() | async)}">
+    [ngClass]="{'w-100': (isXs$ | async)}">
    @if ((hasSections$ | async) !== true) {
      <button class="dropdown-item disabled">
        {{ 'submission.sections.general.no-sections' | translate }}
--- a/src/app/submission/form/section-add/submission-form-section-add.component.ts
+++ b/src/app/submission/form/section-add/submission-form-section-add.component.ts
@@ -51,6 +51,11 @@ export class SubmissionFormSectionAddComponent implements OnInit {
   */
  public hasSections$: Observable<boolean>;

+  /**
+   * A boolean representing whether it's a small screen
+   */
+  isXs$: Observable<boolean>;
+
  /**
   * Initialize instance variables
   *
@@ -71,6 +76,7 @@ export class SubmissionFormSectionAddComponent implements OnInit {
    this.hasSections$ = this.sectionList$.pipe(
      map((list: SectionDataObject[]) => list.length > 0),
    );
+    this.isXs$ = this.windowService.isXs();
  }

  /**
--- a/src/app/submission/form/submission-form.component.html
+++ b/src/app/submission/form/submission-form.component.html
@@ -1,5 +1,5 @@
 <div class="container-fluid">
-  @if ((isLoading() | async) !== true) {
+  @if ((isLoading$ | async) !== true) {
    <div class="submission-form-header mb-3 d-flex flex-wrap position-sticky">
      @if ((uploadEnabled$ | async)) {
        <div class="w-100">
@@ -30,7 +30,7 @@
  }

  <div class="submission-form-content">
-    @if ((isLoading() | async)) {
+    @if ((isLoading$ | async)) {
      <ds-loading message="Loading..."></ds-loading>
    }
    @for (object of $any(submissionSections | async); track object) {
@@ -40,7 +40,7 @@
      </ds-submission-section-container>
    }
  </div>
-  @if ((isLoading() | async) !== true) {
+  @if ((isLoading$ | async) !== true) {
    <div class="submission-form-footer mt-3 mb-3 position-sticky">
      <ds-submission-form-footer [submissionId]="submissionId"></ds-submission-form-footer>
    </div>
--- a/src/app/submission/form/submission-form.component.spec.ts
+++ b/src/app/submission/form/submission-form.component.spec.ts
@@ -147,7 +147,7 @@ describe('SubmissionFormComponent Component', () => {
      expect(compAsAny.submissionSections).toBeUndefined();
      expect(compAsAny.subs).toEqual([]);
      expect(submissionServiceStub.startAutoSave).not.toHaveBeenCalled();
-      expect(comp.loading).toBeObservable(cold('(a|)', { a: true }));
+      expect(comp.isLoading$).toBeObservable(cold('(a|)', { a: true }));
      done();
    });

--- a/src/app/submission/form/submission-form.component.ts
+++ b/src/app/submission/form/submission-form.component.ts
@@ -124,7 +124,7 @@ export class SubmissionFormComponent implements OnChanges, OnDestroy {
   * A boolean representing if a submission form is pending
   * @type {Observable<boolean>}
   */
-  public loading: Observable<boolean> = observableOf(true);
+  public isLoading$: Observable<boolean> = observableOf(true);

  /**
   * Emits true when the submission config has bitstream uploading enabled in submission
@@ -196,7 +196,7 @@ export class SubmissionFormComponent implements OnChanges, OnDestroy {
      this.uploadEnabled$ = this.sectionsService.isSectionTypeAvailable(this.submissionId, SectionsType.Upload);

      // check if is submission loading
-      this.loading = this.submissionService.getSubmissionObject(this.submissionId).pipe(
+      this.isLoading$ = this.submissionService.getSubmissionObject(this.submissionId).pipe(
        filter(() => this.isActive),
        map((submission: SubmissionObjectEntry) => submission.isLoading),
        map((isLoading: boolean) => isLoading),
@@ -302,16 +302,6 @@ export class SubmissionFormComponent implements OnChanges, OnDestroy {
    }
  }

-  /**
-   * Check if submission form is loading
-   */
-  isLoading(): Observable<boolean> {
-    return this.loading;
-  }
-
-  /**
-   * Check if submission form is loading
-   */
  protected getSectionsList(): Observable<any> {
    return this.submissionService.getSubmissionSections(this.submissionId).pipe(
      filter((sections: SectionDataObject[]) => isNotEmpty(sections)),
--- a/src/app/submission/sections/cc-license/submission-section-cc-licenses.component.html
+++ b/src/app/submission/sections/cc-license/submission-section-cc-licenses.component.html
@@ -120,32 +120,28 @@
  }
 }

-@if (getCcLicenseLink$()) {
-  <ng-container *ngVar="getCcLicenseLink$() | async as licenseLink">
-    @if (!licenseLink) {
+@if (ccLicenseLink$) {
+  @let licenseLink = (ccLicenseLink$ | async);
+  @if (licenseLink) {
+    <div
+      class="mt-2 p-4 bg-light text-dark">
      <div>
-        <ds-loading></ds-loading>
+        {{ 'submission.sections.ccLicense.link' | translate }}
      </div>
-    }
-    @if (licenseLink) {
-      <div
-        class="mt-2 p-4 bg-light text-dark">
-        <div>
-          {{ 'submission.sections.ccLicense.link' | translate }}
-        </div>
-        <a class="license-link" href="{{ licenseLink }}" target="_blank" rel="noopener noreferrer">
-          {{ licenseLink }}
-        </a>
-        <div class="m-2">
-          <div (click)="setAccepted(!accepted)">
-            <input type="checkbox"
-              class="me-2"
-              title="accepted"
-              [checked]="accepted">
-            <span> {{ 'submission.sections.ccLicense.confirmation' | translate }}</span>
-          </div>
+      <a class="license-link" href="{{ licenseLink }}" target="_blank" rel="noopener noreferrer">
+        {{ licenseLink }}
+      </a>
+      <div class="m-2">
+        <div (click)="setAccepted(!accepted)">
+          <input type="checkbox"
+                 class="me-2"
+                 title="accepted"
+                 [checked]="accepted">
+          <span> {{ 'submission.sections.ccLicense.confirmation' | translate }}</span>
        </div>
      </div>
-    }
-  </ng-container>
+    </div>
+  } @else {
+    <ds-loading></ds-loading>
+  }
 }
--- a/src/app/submission/sections/cc-license/submission-section-cc-licenses.component.ts
+++ b/src/app/submission/sections/cc-license/submission-section-cc-licenses.component.ts
@@ -3,6 +3,9 @@ import {
  ChangeDetectorRef,
  Component,
  Inject,
+  OnChanges,
+  OnInit,
+  SimpleChanges,
 } from '@angular/core';
 import { FormsModule } from '@angular/forms';
 import {
@@ -42,9 +45,12 @@ import {
 import { WorkspaceitemSectionCcLicenseObject } from '../../../core/submission/models/workspaceitem-section-cc-license.model';
 import { SubmissionCcLicenseDataService } from '../../../core/submission/submission-cc-license-data.service';
 import { SubmissionCcLicenseUrlDataService } from '../../../core/submission/submission-cc-license-url-data.service';
-import { BtnDisabledDirective } from '../../../shared/btn-disabled.directive';
 import { DsSelectComponent } from '../../../shared/ds-select/ds-select.component';
-import { isNotEmpty } from '../../../shared/empty.util';
+import {
+  hasNoValue,
+  hasValue,
+  isNotEmpty,
+} from '../../../shared/empty.util';
 import { ThemedLoadingComponent } from '../../../shared/loading/themed-loading.component';
 import { VarDirective } from '../../../shared/utils/var.directive';
 import { SectionModelComponent } from '../models/section.model';
@@ -68,11 +74,10 @@ import { SectionsType } from '../sections-type';
    NgbDropdownModule,
    FormsModule,
    InfiniteScrollModule,
-    BtnDisabledDirective,
  ],
  standalone: true,
 })
-export class SubmissionSectionCcLicensesComponent extends SectionModelComponent {
+export class SubmissionSectionCcLicensesComponent extends SectionModelComponent implements OnChanges, OnInit {

  /**
   * The form id
@@ -148,6 +153,8 @@ export class SubmissionSectionCcLicensesComponent extends SectionModelComponent
    return this.data.accepted;
  }

+  ccLicenseLink$: Observable<string>;
+
  constructor(
    protected modalService: NgbModal,
    protected sectionService: SectionsService,
@@ -167,6 +174,19 @@ export class SubmissionSectionCcLicensesComponent extends SectionModelComponent
    );
  }

+  ngOnInit(): void {
+    super.ngOnInit();
+    if (hasNoValue(this.ccLicenseLink$)) {
+      this.ccLicenseLink$ = this.getCcLicenseLink$();
+    }
+  }
+
+  ngOnChanges(changes: SimpleChanges): void {
+    if (hasValue(changes.sectionData) || hasValue(changes.submissionCcLicenses)) {
+      this.ccLicenseLink$ = this.getCcLicenseLink$();
+    }
+  }
+
  /**
   * The data of this section.
   */
@@ -191,6 +211,7 @@ export class SubmissionSectionCcLicensesComponent extends SectionModelComponent
      },
      uri: undefined,
    });
+    this.ccLicenseLink$ = this.getCcLicenseLink$();
  }

  /**
@@ -222,6 +243,7 @@ export class SubmissionSectionCcLicensesComponent extends SectionModelComponent
      },
      accepted: false,
    });
+    this.ccLicenseLink$ = this.getCcLicenseLink$();
  }

  /**
--- a/src/app/submission/sections/identifiers/section-identifiers.component.html
+++ b/src/app/submission/sections/identifiers/section-identifiers.component.html
@@ -1,20 +1,14 @@
-<!--
-Template for the identifiers submission section component
-@author Kim Shepherd
-->
-<!-- Main identifier data -->
-<ng-container *ngVar="(getIdentifierData() | async) as identifierData">
-  @if (identifierData && identifierData.identifiers) {
-    <div>
-      <span>{{'submission.sections.identifiers.info' | translate}}</span>
-      <ul>
-        @for (identifier of identifierData.identifiers; track identifier) {
-          @if (identifierData.displayTypes.includes(identifier.identifierType) && identifier.value) {
-            <li>{{'submission.sections.identifiers.' + identifier.identifierType + '_label' | translate}}
-            {{identifier.value}}</li>
-          }
+@let identifierData = (identifierData$ | async);
+@if (identifierData && identifierData.identifiers) {
+  <div>
+    <span>{{'submission.sections.identifiers.info' | translate}}</span>
+    <ul>
+      @for (identifier of identifierData.identifiers; track identifier) {
+        @if (identifierData.displayTypes.includes(identifier.identifierType) && identifier.value) {
+          <li>{{'submission.sections.identifiers.' + identifier.identifierType + '_label' | translate}}
+          {{identifier.value}}</li>
        }
-      </ul>
-    </div>
-  }
-</ng-container>
+      }
+    </ul>
+  </div>
+}
--- a/src/app/submission/sections/identifiers/section-identifiers.component.ts
+++ b/src/app/submission/sections/identifiers/section-identifiers.component.ts
@@ -12,11 +12,9 @@ import {
 import {
  Observable,
  of as observableOf,
-  Subscription,
 } from 'rxjs';

 import { WorkspaceitemSectionIdentifiersObject } from '../../../core/submission/models/workspaceitem-section-identifiers.model';
-import { AlertType } from '../../../shared/alert/alert-type';
 import { VarDirective } from '../../../shared/utils/var.directive';
 import { SubmissionService } from '../../submission.service';
 import { SectionModelComponent } from '../models/section.model';
@@ -43,11 +41,6 @@ import { SectionsService } from '../sections.service';
 })

 export class SubmissionSectionIdentifiersComponent extends SectionModelComponent implements OnInit {
-  /**
-   * The Alert categories.
-   * @type {AlertType}
-   */
-  public AlertTypeEnum = AlertType;

  /**
   * Variable to track if the section is loading.
@@ -59,14 +52,7 @@ export class SubmissionSectionIdentifiersComponent extends SectionModelComponent
   * Observable identifierData subject
   * @type {Observable<WorkspaceitemSectionIdentifiersObject>}
   */
-  public identifierData$: Observable<WorkspaceitemSectionIdentifiersObject> = new Observable<WorkspaceitemSectionIdentifiersObject>();
-
-  /**
-   * Array to track all subscriptions and unsubscribe them onDestroy
-   * @type {Array}
-   */
-  protected subs: Subscription[] = [];
-  public subbedIdentifierData: WorkspaceitemSectionIdentifiersObject;
+  public identifierData$: Observable<WorkspaceitemSectionIdentifiersObject>;

  /**
   * Initialize instance variables.
@@ -87,10 +73,6 @@ export class SubmissionSectionIdentifiersComponent extends SectionModelComponent
    super(injectedCollectionId, injectedSectionData, injectedSubmissionId);
  }

-  ngOnInit(): void {
-    super.ngOnInit();
-  }
-
  /**
   * Initialize all instance variables and retrieve configuration.
   */
@@ -99,13 +81,6 @@ export class SubmissionSectionIdentifiersComponent extends SectionModelComponent
    this.identifierData$ = this.getIdentifierData();
  }

-  /**
-   * Check if identifier section has read-only visibility
-   */
-  isReadOnly(): boolean {
-    return true;
-  }
-
  /**
   * Unsubscribe from all subscriptions, if needed.
   */