93914: Add the ability to delete processes

src/app/process-page/overview/process-overview.component.ts

@@ -1,5 +1,5 @@
-import { Component, OnInit } from '@angular/core';
-import { Observable } from 'rxjs';
+import { Component, OnDestroy, OnInit } from '@angular/core';
+import { BehaviorSubject, Observable, skipWhile, Subscription } from 'rxjs';
 import { RemoteData } from '../../core/data/remote-data';
 import { PaginatedList } from '../../core/data/paginated-list.model';
 import { Process } from '../processes/process.model';
@@ -11,6 +11,9 @@ import { map, switchMap } from 'rxjs/operators';
 import { ProcessDataService } from '../../core/data/processes/process-data.service';
 import { PaginationService } from '../../core/pagination/pagination.service';
 import { FindListOptions } from '../../core/data/find-list-options.model';
+import { ProcessBulkDeleteService } from './process-bulk-delete.service';
+import { NgbModal } from '@ng-bootstrap/ng-bootstrap';
+import { hasValue } from '../../shared/empty.util';
 
 @Component({
   selector: 'ds-process-overview',
@@ -19,7 +22,7 @@ import { FindListOptions } from '../../core/data/find-list-options.model';
 /**
  * Component displaying a list of all processes in a paginated table
  */
-export class ProcessOverviewComponent implements OnInit {
+export class ProcessOverviewComponent implements OnInit, OnDestroy {
 
   /**
    * List of all processes
@@ -46,13 +49,22 @@ export class ProcessOverviewComponent implements OnInit {
    */
   dateFormat = 'yyyy-MM-dd HH:mm:ss';
 
+  processesToDelete: string[] = [];
+  private modalRef: any;
+
+  isProcessingSub: Subscription;
+
   constructor(protected processService: ProcessDataService,
               protected paginationService: PaginationService,
-              protected ePersonService: EPersonDataService) {
+              protected ePersonService: EPersonDataService,
+              protected modalService: NgbModal,
+              public processBulkDeleteService: ProcessBulkDeleteService,
+  ) {
   }
 
   ngOnInit(): void {
     this.setProcesses();
+    this.processBulkDeleteService.clearAllProcesses();
   }
 
   /**
@@ -60,7 +72,7 @@ export class ProcessOverviewComponent implements OnInit {
    */
   setProcesses() {
     this.processesRD$ = this.paginationService.getFindListOptions(this.pageConfig.id, this.config).pipe(
-      switchMap((config) => this.processService.findAll(config))
+      switchMap((config) => this.processService.findAll(config, true, false))
     );
   }
 
@@ -74,8 +86,46 @@ export class ProcessOverviewComponent implements OnInit {
       map((eperson: EPerson) => eperson.name)
     );
   }
+
   ngOnDestroy(): void {
     this.paginationService.clearPagination(this.pageConfig.id);
+    if (hasValue(this.isProcessingSub)) {
+      this.isProcessingSub.unsubscribe();
+    }
   }
 
+  /**
+   * Open a given modal.
+   * @param content   - the modal content.
+   */
+  openDeleteModal(content) {
+    this.modalRef = this.modalService.open(content);
+  }
+
+  /**
+   * Close the modal.
+   */
+  closeModal() {
+    this.modalRef.close();
+  }
+
+  /**
+   * Delete the previously selected processes using the processBulkDeleteService
+   * After the deletion has started, subscribe to the isProcessing$ and when it is set
+   * to false after the processing is done, close the modal and reinitialise the processes
+   */
+  deleteSelected() {
+    this.processBulkDeleteService.deleteSelectedProcesses();
+
+    if (hasValue(this.isProcessingSub)) {
+      this.isProcessingSub.unsubscribe();
+    }
+    this.isProcessingSub = this.processBulkDeleteService.isProcessing$()
+      .subscribe((isProcessing) => {
+      if (!isProcessing) {
+        this.closeModal();
+        this.setProcesses();
+      }
+    });
+  }
 }