adding call states based on connection

nirvana-ios/Views/Convos/ConvoFooterView.swift

@@ -29,6 +29,33 @@ struct ConvoFooterView: View {
                             .font(.footnote)
                             .foregroundColor(NirvanaColor.light)
                         
+                        switch self.convoVM.connectionState {
+                        case .connecting:
+                            Label("connecting", systemImage: "chart.bar")
+                                .foregroundColor(Color.orange)
+                                .font(.caption)
+                        case .connected:
+                            Label("connected", systemImage: "chart.bar.fill")
+                                .foregroundColor(Color.green)
+                                .font(.caption)
+                        case .reconnecting:
+                            Label("reconnecting", systemImage: "chart.bar")
+                                .foregroundColor(Color.orange)
+                                .font(.caption)
+                        case .failed:
+                            Label("failed", systemImage: "chart.bar")
+                                .foregroundColor(Color.red)
+                                .font(.caption)
+                        case .disconnected:
+                            Label("disconnected", systemImage: "chart.bar")
+                                .foregroundColor(Color.red)
+                                .font(.caption)
+                        default:
+                            Label("disconnected", systemImage: "chart.bar")
+                                .foregroundColor(Color.red)
+                                .font(.caption)
+                        }
+                        
                         Text(self.convoRelativeTime)
                             .font(.caption2)
                             .foregroundColor(.gray)

nirvana-ios/Views/Convos/ConvoViewModel.swift

@@ -8,11 +8,11 @@
 import Foundation
 import AgoraRtcKit
 
-
 class ConvoViewModel: NSObject, ObservableObject {
     private var testingUIMode = true
     
     @Published var selectedConvoId:String? = nil
+    @Published var connectionState: AgoraConnectionStateType? = nil
     
     let firestoreService = FirestoreService()
     
@@ -137,6 +137,10 @@ extension ConvoViewModel {
 }
 
 extension ConvoViewModel: AgoraRtcEngineDelegate {
+    func rtcEngine(_ engine: AgoraRtcEngineKit, connectionChangedTo state: AgoraConnectionStateType, reason: AgoraConnectionChangedReason) {
+        self.connectionState = state
+    }
+    
     func rtcEngine(_ engine: AgoraRtcEngineKit, didJoinChannel channel: String, withUid uid: UInt, elapsed: Int) {
         print("I did join channel")