Implements signals

kordophone2/ConversationListView.swift

@@ -10,6 +10,7 @@ import SwiftUI
 struct ConversationListView: View
 {
     @Binding var model: ViewModel
+    @Environment(\.xpcClient) private var xpcClient
     
     var body: some View {
         List($model.conversations, selection: $model.selectedConversations) { conv in
@@ -19,9 +20,26 @@ struct ConversationListView: View
                 
                 Text(conv.wrappedValue.messagePreview)
             }
+            .id(conv.id)
             .padding(8.0)
         }
         .listStyle(.sidebar)
+        .task { await watchForConversationListChanges() }
+    }
+    
+    private func watchForConversationListChanges() async  {
+        for await event in xpcClient.eventStream() {
+            switch event {
+                case .conversationsUpdated:
+                    model.setNeedsReload()
+                case .messagesUpdated(_):
+                    model.setNeedsReload()
+                case .updateStreamReconnected:
+                    model.setNeedsReload()
+                default:
+                    break
+            }
+        }
     }
     
     // MARK: - Types
@@ -32,9 +50,35 @@ struct ConversationListView: View
         var conversations: [Display.Conversation]
         var selectedConversations: Set<Display.Conversation.ID>
         
+        private var needsReload: Bool = true
+        
         public init(conversations: [Display.Conversation] = []) {
             self.conversations = conversations
             self.selectedConversations = Set()
+            setNeedsReload()
+        }
+        
+        func setNeedsReload() {
+            needsReload = true
+            Task { @MainActor [weak self] in
+                guard let self else { return }
+                await reloadConversations()
+            }
+        }
+
+        func reloadConversations() async {
+            guard needsReload else { return }
+            needsReload = false
+
+            do {
+                let client = XPCClient()
+                let clientConversations = try await client.getConversations()
+                    .map { Display.Conversation(from: $0) }
+                
+                self.conversations = clientConversations
+            } catch {
+                print("Error reloading conversations: \(error)")
+            }
         }
     }
 }