MESSENGER-4565 Added new developer settings options

bwi/DeveloperSettings/ServerCapabilitiesView.swift

@@ -0,0 +1,73 @@
+//
+/*
+ * Copyright (c) 2022 BWI GmbH
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import SwiftUI
+
+struct ServerCapabilitiesView: View {
+    @State var jsonString = ""
+    var session: MXSession?
+    
+    var body: some View {
+        ScrollView {
+            VStack(alignment: .leading) {
+                HStack {
+                    Text(jsonString)
+                        .font(.caption)
+                        .padding()
+                    Spacer()
+                }
+            }
+        }
+        .navigationTitle(BWIL10n.bwiSettingsDeveloperCapabilities)
+        .navigationBarTitleDisplayMode(.inline)
+        .onAppear {
+            Task {
+                await fetchData()
+            }
+        }
+    }
+    
+    private func fetchData() async {
+        guard let restClient = session?.matrixRestClient else {
+            return
+        }
+        
+        let responseDict = await withCheckedContinuation { continuation in
+            restClient.getServerCapabilities { jsonResponse, error in
+                continuation.resume(returning: jsonResponse)
+            }
+        }
+        await MainActor.run {
+            do {
+                if let responseDict = responseDict {
+                    let data = try JSONSerialization.data(withJSONObject: responseDict as Any, options: [.prettyPrinted])
+                    jsonString = String(data: data, encoding: .utf8) ?? ""
+                } else {
+                    jsonString = ""
+                }
+            } catch {
+                jsonString = ""
+            }
+        }
+    }
+}
+
+struct ServerCapabilitiesView_Previews: PreviewProvider {
+    static var previews: some View {
+        ServerCapabilitiesView()
+    }
+}