delete current repertoire

src/app/component/repertoire/repertoire.component.html

@@ -8,6 +8,7 @@ <h2 class="mat-h2">{{currentRepertoire ? currentRepertoire.name + ' ': ''}}Reper
             <button mat-menu-item *ngFor="let rep of repertoires()"
                 (click)="selectRepertoire(rep)">{{rep.name}}</button>
             <button mat-menu-item (click)="openNewRepertoireDialog()">New repertoire</button>
+            <button mat-menu-item (click)="openDeleteRepertoireDialog()">Delete current repertoire</button>
         </mat-menu>
     </div>
 

src/app/component/repertoire/repertoire.component.ts

@@ -58,6 +58,14 @@ export class RepertoireComponent implements OnInit {
         dialogRef.afterClosed().subscribe(added => this.newRepertoire(added));
     }
 
+    openDeleteRepertoireDialog(): void {
+        const dialogRef = this.dialog.open(DeleteRepertoireItemComponent, { data: `Delete "${this.currentRepertoire.name}" repertoire?` });
+        dialogRef.afterClosed().subscribe(confirmed => {
+            if (confirmed) {
+                this.deleteCurrentRepertoire();
+            }
+        });
+    }
     selectRepertoire(repertoire: Repertoire): void {
         this.currentRepertoire = repertoire;
         this.prepareTunes();
@@ -84,6 +92,11 @@ export class RepertoireComponent implements OnInit {
         this.prepareTunes();
     }
 
+    private async deleteCurrentRepertoire(): Promise<void> {
+        await this.repertoireRepository.deleteRepertoire(this.currentRepertoire.name);
+        await this.loadRepertoire();
+    }
+
     private async loadRepertoire() {
         this.repertoireCollection = await this.repertoireRepository.load();
         const rep = await this.repertoireRepository.findRepertoire();

src/app/service/repertoire-repository.ts

@@ -170,4 +170,19 @@ export class RepertoireRepository {
             ? collection.repertoires.find(r => r.name === name)
             : collection.repertoires[0];
     }
+
+    /**
+     * Finds the repertoire with the given identity.
+     * @param name repertoire name 
+     * @return file ID of updated repertoire file, or empty string
+     */
+    async deleteRepertoire(name: string): Promise<String> {
+        const collection = await this.load();
+        const index = collection.repertoires.findIndex(r => r.name === name);
+        if (index == -1) {
+            return "";
+        }
+        collection.repertoires.splice(index, 1);
+        return this.saveCollection(collection);
+    }
 }