Refactor comment UI code

And run prettier

src-ui/src/app/components/document-comments/document-comments.component.ts

@@ -0,0 +1,73 @@
+import { Component, Input, OnInit } from '@angular/core'
+import { DocumentCommentsService } from 'src/app/services/rest/document-comments.service'
+import { PaperlessDocumentComment } from 'src/app/data/paperless-document-comment'
+import { FormControl, FormGroup } from '@angular/forms'
+import { first } from 'rxjs/operators'
+import { ToastService } from 'src/app/services/toast.service'
+
+@Component({
+  selector: 'app-document-comments',
+  templateUrl: './document-comments.component.html',
+  styleUrls: ['./document-comments.component.scss'],
+})
+export class DocumentCommentsComponent implements OnInit {
+  commentForm: FormGroup = new FormGroup({
+    newcomment: new FormControl(''),
+  })
+
+  networkActive = false
+  comments: PaperlessDocumentComment[] = []
+
+  @Input()
+  documentId: number
+
+  constructor(
+    private commentsService: DocumentCommentsService,
+    private toastService: ToastService
+  ) {}
+
+  ngOnInit(): void {
+    this.commentsService
+      .getComments(this.documentId)
+      .pipe(first())
+      .subscribe((comments) => (this.comments = comments))
+  }
+
+  commentId(index, comment: PaperlessDocumentComment) {
+    return comment.id
+  }
+
+  addComment() {
+    this.networkActive = true
+    this.commentsService
+      .addComment(this.documentId, this.commentForm.get('newcomment').value)
+      .subscribe({
+        next: (result) => {
+          this.comments = result
+          this.commentForm.get('newcomment').reset()
+          this.networkActive = false
+        },
+        error: (e) => {
+          this.networkActive = false
+          this.toastService.showError(
+            $localize`Error saving comment: ${e.toString()}`
+          )
+        },
+      })
+  }
+
+  deleteComment(commentId: number) {
+    this.commentsService.deleteComment(this.documentId, commentId).subscribe({
+      next: (result) => {
+        this.comments = result
+        this.networkActive = false
+      },
+      error: (e) => {
+        this.networkActive = false
+        this.toastService.showError(
+          $localize`Error deleting comment: ${e.toString()}`
+        )
+      },
+    })
+  }
+}