[F] Add null cases for family updates checking

ProjectClock/AlarmActivator.swift

@@ -83,18 +83,30 @@ class AlarmActivator: UITabBarController
      */
     @objc func checkFamily()
     {
+        guard localStorage.string(forKey: "family") != nil else { return }
+        
         send(APIs.familyAlarmUpdates)
         {
+            guard $0 != "" else { return }
+            
+            var changed = false
             let alarms = Alarms.fromLocal()
-            $0.components(separatedBy: ",").forEach
+            $0.csv.forEach
             {
                 guard let alarm = JSON.parse(Alarm.self, $0) else { return }
                 if (!alarms.list.contains { $0.timeText == alarm.timeText })
                 {
                     alarms.list.append(alarm)
+                    changed = true
                 }
             }
             alarms.localSave()
+            
+            guard changed else { return }
+            self.msg("New alarm!", "A family member added an alarm for you!")
+            {
+                AlarmViewController.staticTable?.reloadData()
+            }
         }
     }
 }

ProjectClock/Models.swift

@@ -15,7 +15,7 @@ struct Family: Codable
     var members: String
     // And a hidden field: admin pin
     
-    var membersList: [String] { members.components(separatedBy: ",") }
+    var membersList: [String] { members.csv }
     
     /// Save family to local storage
     func localSave()

ProjectClock/Utils.swift

@@ -253,3 +253,9 @@ extension UserDefaults
         set { self[key] = newValue?.rawValue }
     }
 }
+
+/// String CSV
+extension String
+{
+    var csv: [String] { components(separatedBy: ";") }
+}