refactor: begin splitting alertService into standalone functions

app/assets/javascripts/services/alertService.ts

@@ -2,6 +2,45 @@
 import { SNAlertService } from 'snjs';
 import { SKAlert } from 'sn-stylekit';
 
+/** @returns a promise resolving to true if the user confirmed, false if they canceled */
+export function confirmDialog({
+  text,
+  title,
+  confirmButtonText = 'Confirm',
+  cancelButtonText = 'Cancel',
+  confirmButtonStyle = 'info'
+}: {
+  text: string,
+  title?: string,
+  confirmButtonText?: string,
+  cancelButtonText?: string,
+  confirmButtonStyle?: 'danger' | 'info'
+}) {
+  return new Promise<boolean>((resolve) => {
+    const alert = new SKAlert({
+      title,
+      text,
+      buttons: [
+        {
+          text: cancelButtonText,
+          style: 'neutral',
+          action() {
+            resolve(false);
+          },
+        },
+        {
+          text: confirmButtonText,
+          style: confirmButtonStyle,
+          action() {
+            resolve(true);
+          },
+        },
+      ],
+    });
+    alert.present();
+  });
+}
+
 export class AlertService extends SNAlertService {
   async alert(
     text: string,
@@ -13,20 +52,21 @@ export class AlertService extends SNAlertService {
       const buttons = [
         {
           text: closeButtonText,
-          style: "neutral",
+          style: 'neutral',
           action: async () => {
             if (onClose) {
               this.deviceInterface!.timeout(onClose);
             }
             resolve(true);
-          }
-        }
+          },
+        },
       ];
       const alert = new SKAlert({ title, text, buttons });
       alert.present();
     });
   }
 
+  /** @deprecated use confirmDialog instead */
   async confirm(
     text: string,
     title: string,
@@ -36,31 +76,18 @@ export class AlertService extends SNAlertService {
     onCancel: () => void,
     destructive = false
   ) {
-    return new Promise((resolve, reject) => {
-      const buttons = [
-        {
-          text: cancelButtonText,
-          style: "neutral",
-          action: async () => {
-            if (onCancel) {
-              this.deviceInterface!.timeout(onCancel);
-            }
-            reject(false);
-          }
-        },
-        {
-          text: confirmButtonText,
-          style: destructive ? "danger" : "info",
-          action: async () => {
-            if (onConfirm) {
-              this.deviceInterface!.timeout(onConfirm);
-            }
-            resolve(true);
-          }
-        },
-      ];
-      const alert = new SKAlert({ title, text, buttons });
-      alert.present();
+    const confirmed = await confirmDialog({
+      text,
+      title,
+      confirmButtonText,
+      cancelButtonText,
+      confirmButtonStyle: destructive ? 'danger' : 'info'
     });
+    if (confirmed) {
+      onConfirm();
+    } else {
+      onCancel();
+    }
+    return confirmed;
   }
 }