Refactor issue detail editing: streamline input handling and remove editing mode logic

src/app/issues/issue-detail/issue-detail.ts

@@ -13,10 +13,9 @@ export class IssueDetail {
   private readonly route = inject(ActivatedRoute);
   private readonly router = inject(Router);
   private readonly issuesStore = inject(IssuesStore);
+  private readonly isNewIssueRoute = this.route.snapshot.routeConfig?.path === 'issues/new';
 
   protected issue: IssueEntity = this.buildIssue();
-  protected isEditing = this.route.snapshot.queryParamMap.get('mode') === 'edit';
-  private issueBeforeEdit: IssueEntity | null = null;
   protected readonly issues = this.issuesStore.issues;
   protected moreMenuOpen = false;
 
@@ -60,30 +59,11 @@ export class IssueDetail {
     this.issue.type = value;
   }
 
-  constructor() {
-    if (this.isEditing) {
-      this.issueBeforeEdit = this.cloneIssue(this.issue);
-    }
-  }
-
-  protected startEdit(): void {
-    this.issueBeforeEdit = this.cloneIssue(this.issue);
-    this.isEditing = true;
-    this.closeMoreMenu();
-  }
-
-  protected cancelEdit(): void {
-    if (this.issueBeforeEdit) {
-      this.issue = this.cloneIssue(this.issueBeforeEdit);
-    }
-    this.isEditing = false;
-  }
-
   protected saveIssue(): void {
     this.issuesStore.upsert(this.issue);
-    this.issueBeforeEdit = this.cloneIssue(this.issue);
-    this.isEditing = false;
-    this.router.navigate(['/issues', this.issue.id]);
+    if (this.isNewIssueRoute) {
+      this.router.navigate(['/issues', this.issue.id]);
+    }
   }
 
   protected deleteIssue(): void {
@@ -120,9 +100,6 @@ export class IssueDetail {
     return this.issues().filter((issue) => issue.id !== this.issue.id);
   }
 
-  private cloneIssue(issue: IssueEntity): IssueEntity {
-    return { ...issue };
-  }
 
   private buildIssue(): IssueEntity {
     const idParam = this.route.snapshot.paramMap.get('id');