simplify and fix issues with RelayStatus

damus/Views/Relays/RelayDetailView.swift

@@ -75,11 +75,13 @@ struct RelayDetailView: View {
                         UserViewRow(damus_state: state, pubkey: pubkey)
                     }
                 }
-                Section(NSLocalizedString("Relay", comment: "Label to display relay address.")) {
-                    HStack {
-                        Text(relay)
-                        Spacer()
-                        RelayStatus(pool: state.pool, relay: relay)
+                if let relay_connection {
+                    Section(NSLocalizedString("Relay", comment: "Label to display relay address.")) {
+                        HStack {
+                            Text(relay)
+                            Spacer()
+                            RelayStatus(connection: relay_connection)
+                        }
                     }
                 }
                 if nip11.is_paid {
@@ -134,6 +136,10 @@ struct RelayDetailView: View {
         }
         return attrString
     }
+    
+    private var relay_connection: RelayConnection? {
+        state.pool.get_relay(relay)?.connection
+    }
 }
 
 struct RelayDetailView_Previews: PreviewProvider {

damus/Views/Relays/RelayStatus.swift

@@ -8,58 +8,26 @@
 import SwiftUI
 
 struct RelayStatus: View {
-    let pool: RelayPool
-    let relay: String
-    
-    let timer = Timer.publish(every: 2, on: .main, in: .common).autoconnect()
-    
-    @State var conn_color: Color = .gray
-    @State var conn_image: String = "network"
-    @State var connecting: Bool = false
-    
-    func update_connection() {
-        for relay in pool.relays {
-            if relay.id == self.relay {
-                let c = relay.connection
-                if c.isConnected {
-                    conn_image = "globe"
-                    conn_color = .green
-                } else if c.isConnecting {
-                    connecting = true
-                } else {
-                    conn_image = "warning.fill"
-                    conn_color = .red
-                }
-            }
-        }
-    }
+    @ObservedObject var connection: RelayConnection
     
     var body: some View {
-        HStack {
-            if connecting {
+        Group {
+            if connection.isConnecting {
                 ProgressView()
-                    .frame(width: 20, height: 20)
-                    .padding(.trailing, 5)
             } else {
-                Image(conn_image)
+                Image(connection.isConnected ? "globe" : "warning.fill")
                     .resizable()
-                    .frame(width: 20, height: 20)
-                    .foregroundColor(conn_color)
-                    .padding(.trailing, 5)
+                    .foregroundColor(connection.isConnected ? .green : .red)
             }
         }
-        .onReceive(timer) { _ in
-            update_connection()
-        }
-        .onAppear() {
-            update_connection()
-        }
-        
+        .frame(width: 20, height: 20)
+        .padding(.trailing, 5)
     }
 }
 
-struct RelayStatus_Previews: PreviewProvider {
+struct RelayStatusView_Previews: PreviewProvider {
     static var previews: some View {
-        RelayStatus(pool: test_damus_state().pool, relay: "relay")
+        let connection = test_damus_state().pool.get_relay("relay")!.connection
+        RelayStatus(connection: connection)
     }
 }

damus/Views/Relays/RelayToggle.swift

@@ -26,12 +26,18 @@ struct RelayToggle: View {
     
     var body: some View {
         HStack {
-            RelayStatus(pool: state.pool, relay: relay_id)
+            if let relay_connection {
+                RelayStatus(connection: relay_connection)
+            }
             RelayType(is_paid: state.relay_metadata.lookup(relay_id: relay_id)?.is_paid ?? false)
             Toggle(relay_id, isOn: toggle_binding(relay_id: relay_id))
                 .toggleStyle(SwitchToggleStyle(tint: .accentColor))
         }
     }
+    
+    private var relay_connection: RelayConnection? {
+        state.pool.get_relay(relay_id)?.connection
+    }
 }
 
 struct RelayToggle_Previews: PreviewProvider {

damus/Views/Relays/RelayView.swift

@@ -20,8 +20,8 @@ struct RelayView: View {
                     if showActionButtons {
                         RemoveButton(privkey: privkey, showText: false)
                     }
-                    else {
-                        RelayStatus(pool: state.pool, relay: relay)
+                    else if let relay_connection {
+                        RelayStatus(connection: relay_connection)
                     }
                 }
                 
@@ -67,6 +67,10 @@ struct RelayView: View {
         }
     }
     
+    private var relay_connection: RelayConnection? {
+        state.pool.get_relay(relay)?.connection
+    }
+    
     func CopyAction(relay: String) -> some View {
         Button {
             UIPasteboard.general.setValue(relay, forPasteboardType: "public.plain-text")