Step 9.4: Add message options component

Author: dotansimha

src/pages/messages/messages-options.ts

@@ -0,0 +1,76 @@
+import { Component } from '@angular/core';
+import { AlertController, NavController, NavParams, ViewController } from 'ionic-angular';
+import { MeteorObservable } from 'meteor-rxjs';
+import { ChatsPage } from '../chats/chats';
+
+@Component({
+  selector: 'messages-options',
+  templateUrl: 'messages-options.html'
+})
+export class MessagesOptionsComponent {
+  constructor(
+    public alertCtrl: AlertController,
+    public navCtrl: NavController,
+    public params: NavParams,
+    public viewCtrl: ViewController
+  ) {}
+
+  remove(): void {
+    const alert = this.alertCtrl.create({
+      title: 'Remove',
+      message: 'Are you sure you would like to proceed?',
+      buttons: [
+        {
+          text: 'Cancel',
+          role: 'cancel'
+        },
+        {
+          text: 'Yes',
+          handler: () => {
+            this.handleRemove(alert);
+            return false;
+          }
+        }
+      ]
+    });
+
+    this.viewCtrl.dismiss().then(() => {
+      alert.present();
+    });
+  }
+
+  private handleRemove(alert): void {
+    MeteorObservable.call('removeChat', this.params.get('chat')._id).subscribe({
+      next: () => {
+        alert.dismiss().then(() => {
+          this.navCtrl.setRoot(ChatsPage, {}, {
+            animate: true
+          });
+        });
+      },
+      error: (e: Error) => {
+        alert.dismiss().then(() => {
+          if (e) {
+            return this.handleError(e);
+          }
+
+          this.navCtrl.setRoot(ChatsPage, {}, {
+            animate: true
+          });
+        });
+      }
+    });
+  }
+
+  private handleError(e: Error): void {
+    console.error(e);
+
+    const alert = this.alertCtrl.create({
+      title: 'Oops!',
+      message: e.message,
+      buttons: ['OK']
+    });
+
+    alert.present();
+  }
+}