Gate user status behind server support as well as the feature flag. (#5920)

ElementX/Sources/Services/Client/ClientProxy.swift

@@ -281,7 +281,11 @@ class ClientProxy: ClientProxyProtocol {
         
         try await client.setUtdDelegate(utdDelegate: ClientDecryptionErrorDelegate(actionsSubject: actionsSubject))
         
-        let canSubscribeToUserProfile = appSettings.userStatusEnabled // TODO: @pixlwave to add a /versions check too.
+        let canSubscribeToUserProfile = if appSettings.userStatusEnabled, case .success(true) = await isUserStatusSupported() {
+            true
+        } else {
+            false
+        }
         
         if !canSubscribeToUserProfile {
             loadUserAvatarURLFromCache()
@@ -753,6 +757,15 @@ class ClientProxy: ClientProxyProtocol {
         }
     }
     
+    func isUserStatusSupported() async -> Result<Bool, ClientProxyError> {
+        do {
+            return try await .success(client.isUserStatusSupported())
+        } catch {
+            MXLog.error("Failed detecting user status support with error: \(error)")
+            return .failure(.sdkError(error))
+        }
+    }
+    
     // periphery:ignore - might be useful to have
     func setUserStatus(_ status: UserStatus.Raw) async -> Result<Void, ClientProxyError> {
         do {

ElementX/Sources/Services/Client/ClientProxyProtocol.swift

@@ -226,6 +226,7 @@ protocol ClientProxyProtocol: AnyObject {
     func setUserDisplayName(_ name: String) async -> Result<Void, ClientProxyError>
     func setUserAvatar(media: MediaInfo) async -> Result<Void, ClientProxyError>
     func removeUserAvatar() async -> Result<Void, ClientProxyError>
+    func isUserStatusSupported() async -> Result<Bool, ClientProxyError>
     func setUserStatus(_ status: UserStatus.Raw) async -> Result<Void, ClientProxyError>
     func removeUserStatus() async -> Result<Void, ClientProxyError>