Refactoring

submodules/TelegramCore/Sources/Settings/VoipConfiguration.swift

@@ -0,0 +1,18 @@
+import Postbox
+import SyncCore
+
+public func currentVoipConfiguration(transaction: Transaction) -> VoipConfiguration {
+    if let entry = transaction.getPreferencesEntry(key: PreferencesKeys.voipConfiguration) as? VoipConfiguration {
+        return entry
+    } else {
+        return VoipConfiguration.defaultValue
+    }
+}
+
+func updateVoipConfiguration(transaction: Transaction, _ f: (VoipConfiguration) -> VoipConfiguration) {
+    let current = currentVoipConfiguration(transaction: transaction)
+    let updated = f(current)
+    if updated != current {
+        transaction.setPreferencesEntry(key: PreferencesKeys.voipConfiguration, value: updated)
+    }
+}