Add NotificationSettings and Keywords UI and VM

Riot/Modules/Settings/Notifications/Model/StandardActions.swift

@@ -0,0 +1,52 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// 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 Foundation
+
+enum NotificationAction {
+    case notify(Bool)
+    case highlight(Bool)
+    case sound(String)
+}
+
+enum NotificationStandardActions {
+    case notify
+    case notifyDefaultSound
+    case notifyRingSound
+    case highlight
+    case highlightDefaultSound
+    case dontNotify
+    case disabled
+    
+    var actions: [NotificationAction]? {
+        switch self {
+        case .notify:
+            return [.notify(true)]
+        case .notifyDefaultSound:
+            return [.notify(true), .sound("default")]
+        case .notifyRingSound:
+            return [.notify(true), .sound("ring")]
+        case .highlight:
+            return [.notify(true), .highlight(true)]
+        case .highlightDefaultSound:
+            return [.notify(true), .highlight(true), .sound("default")]
+        case .dontNotify:
+            return [.notify(false)]
+        case .disabled:
+            return nil
+        }
+    }
+}