OZG-5977 implement is upload in progress

alfa-client/libs/binary-file-shared/src/lib/binary-file.service.spec.ts

@@ -58,7 +58,17 @@ describe('BinaryFileService', () => {
   });
 
   describe('is upload in progress', () => {
-    //Implement me
+    it('should return true if uploadedFiles contains loading stateResource by key', () => {
+      const uploadFile: UploadFile = {
+        fileToUpload: createFile(),
+        uploadedFile: of(createEmptyStateResource<BinaryFileResource>(true)),
+      };
+      service.uploadFiles.next({ [BinaryFileUploadType.BESCHEID]: [uploadFile] });
+
+      const uploadInProgress: Observable<boolean> = service.isUploadInProgress(BinaryFileUploadType.BESCHEID);
+
+      expect(uploadInProgress).toBeObservable(singleCold(true));
+    });
   });
 
   describe('get uploaded files', () => {

alfa-client/libs/binary-file-shared/src/lib/binary-file.service.ts

@@ -42,8 +42,8 @@ import { Injectable } from '@angular/core';
 import { getUrl, Resource, ResourceUri } from '@ngxp/rest';
 import { saveAs } from 'file-saver';
 import { isNil } from 'lodash-es';
-import { BehaviorSubject, Observable, of, throwError } from 'rxjs';
-import { catchError, map, mergeMap, startWith } from 'rxjs/operators';
+import { BehaviorSubject, forkJoin, Observable, of, throwError } from 'rxjs';
+import { catchError, map, mergeMap, startWith, switchMap } from 'rxjs/operators';
 import {
   BinaryFileListResource,
   BinaryFileResource,
@@ -69,8 +69,11 @@ export class BinaryFileService {
   ) {}
 
   public isUploadInProgress(type: BinaryFileUploadType): Observable<boolean> {
-    //Implement me
-    return of(true);
+    return this.uploadFiles.asObservable().pipe(
+      map((files: UploadFilesByType) => files[type].map((file: UploadFile) => file.uploadedFile)),
+      switchMap((files: Observable<StateResource<BinaryFileResource>>[]) => forkJoin(files)),
+      map((files: StateResource<BinaryFileResource>[]) => files.some((s) => s.loading)),
+    );
   }
 
   public getUploadedFiles(type: BinaryFileUploadType): Observable<UploadFile[]> {