export logger level api. (#244)

lib/src/logger.dart

@@ -1,11 +1,67 @@
 import 'package:logging/logging.dart';
 
-/// Logger used for the entire SDK. To output logs, configure the logger at the
-/// entry point of your app. Adjust the logger output level to your needs.
-/// A typical configuration would look like the following:
-///
-/// Logger.root.level = Level.FINE;
-/// Logger.root.onRecord.listen((record) {
-///   print('${record.level.name}: ${record.message}');
-/// });
+enum LoggerLevel {
+  kALL,
+  kFINEST,
+  kFINER,
+  kFINE,
+  kCONFIG,
+  kINFO,
+  kWARNING,
+  kSEVERE,
+  kSHOUT,
+  kOFF
+}
+
 final logger = Logger('livekit');
+
+/// disable logging
+void disableLogging() {
+  logger.level = Level.OFF;
+}
+
+/// set the logging level
+void setLoggingLevel(LoggerLevel level) {
+  switch (level) {
+    case LoggerLevel.kALL:
+      logger.level = Level.ALL;
+      break;
+    case LoggerLevel.kFINEST:
+      logger.level = Level.FINEST;
+      break;
+    case LoggerLevel.kFINER:
+      logger.level = Level.FINER;
+      break;
+    case LoggerLevel.kFINE:
+      logger.level = Level.FINE;
+      break;
+    case LoggerLevel.kCONFIG:
+      logger.level = Level.CONFIG;
+      break;
+    case LoggerLevel.kINFO:
+      logger.level = Level.INFO;
+      break;
+    case LoggerLevel.kWARNING:
+      logger.level = Level.WARNING;
+      break;
+    case LoggerLevel.kSEVERE:
+      logger.level = Level.SEVERE;
+      break;
+    case LoggerLevel.kSHOUT:
+      logger.level = Level.SHOUT;
+      break;
+    case LoggerLevel.kOFF:
+      logger.level = Level.OFF;
+      break;
+  }
+}
+
+/// get the current logging level
+Level getLoggingLevel() {
+  return logger.level;
+}
+
+/// set a custom logging handler
+///void setLoggingHandler(Function(LogRecord) handler) {
+///  logger.onRecord.listen(handler);
+///}