setting up one way of doing alerts

nirvana-ios/Views/Convos/ConvoViewModel.swift

@@ -8,10 +8,29 @@
 import Foundation
 import AgoraRtcKit
 import Firebase
+import SwiftUI
 
 class ConvoViewModel: NSObject, ObservableObject {
+    enum Error: Identifiable {
+        var id: Self { self }
+        
+        case notAuthenticated
+        case maxLimitUsers
+        case convoNotFound
+        
+        var alert: Alert {
+            switch self {
+            case .notAuthenticated:
+                return Alert(title: Text("Not Authenticated!"))
+            default:
+                return Alert(title: Text("There was a problem"))
+            }
+        }
+    }
+    
     @Published var selectedConvoId:String? = nil
     @Published var connectionState: AgoraConnectionStateType?
+    @Published var error: Error?
     
     let firestoreService = FirestoreService()
     private var db = Firestore.firestore()
@@ -464,3 +483,4 @@ extension ConvoViewModel: AgoraRtcEngineDelegate {
         self.selectedConvoId = nil
     }
 }
+

nirvana-ios/Views/InnerCircle/CircleGridView.swift

@@ -337,6 +337,9 @@ struct CircleGridView: View {
                 }
                 
                 self.animateLiveConvos = true
+            }// univseral alert TODO: move to inner circle view and use this pattern for all view models
+            .alert(item: self.$convoVM.error) {error in
+                error.alert
             }
         } // scrollview reader
     }
@@ -485,7 +488,6 @@ extension CircleGridView {
             return
         } // if I am in a convo, don't allow listening to a message or expanding details of a friend in my circle
         else if self.convoVM.isInCall() {
-            // TODO: show toast
             print("can't select this friend as you are in a convo")
             return
         }