Prevent multiple conversion of the same voice message audio file. (#1887)

ElementX/Sources/Services/VoiceMessage/VoiceMessageCacheProtocol.swift

@@ -0,0 +1,26 @@
+//
+// Copyright 2023 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
+
+protocol VoiceMessageCacheProtocol {
+    func fileURL(for mediaSource: MediaSourceProxy) -> URL?
+    func cache(mediaSource: MediaSourceProxy, using fileURL: URL, move: Bool) throws -> URL
+    func clearCache()
+}
+
+// sourcery: AutoMockable
+extension VoiceMessageCacheProtocol { }