fixed core and shared module usage, lazy loading modules

src/app/+item-page/full/field-components/file-section/full-file-section.component.ts

@@ -0,0 +1,48 @@
+import { Component, Input, OnInit } from '@angular/core';
+import { Observable } from 'rxjs/Observable';
+
+import { Bitstream } from '../../../../core/shared/bitstream.model';
+import { Item } from '../../../../core/shared/item.model';
+import { FileSectionComponent } from '../../../simple/field-components/file-section/file-section.component';
+import { hasValue } from '../../../../shared/empty.util';
+
+/**
+ * This component renders the file section of the item
+ * inside a 'ds-metadata-field-wrapper' component.
+ */
+
+@Component({
+  selector: 'ds-item-page-full-file-section',
+  styleUrls: ['./full-file-section.component.scss'],
+  templateUrl: './full-file-section.component.html'
+})
+export class FullFileSectionComponent extends FileSectionComponent implements OnInit {
+
+  @Input() item: Item;
+
+  label: string;
+
+  files: Observable<Bitstream[]>;
+
+  thumbnails: Map<string, Observable<Bitstream>> = new Map();
+
+  ngOnInit(): void {
+    super.ngOnInit();
+  }
+
+  initialize(): void {
+    const originals = this.item.getFiles();
+    const licenses = this.item.getBitstreamsByBundleName('LICENSE');
+    this.files = Observable.combineLatest(originals, licenses, (o, l) => [...o, ...l]);
+    this.files.subscribe(
+      (files) =>
+        files.forEach(
+          (original) => {
+            const thumbnail: Observable<Bitstream> = this.item.getThumbnailForOriginal(original);
+            this.thumbnails.set(original.id, thumbnail);
+          }
+        )
+    )
+  }
+
+}