text: //
  //  Copyright (c) 2018 Open Whisper Systems. All rights reserved.
  //
  
  #import <CocoaLumberjack/CocoaLumberjack.h>
  
  NS_ASSUME_NONNULL_BEGIN
  
  #ifdef DEBUG
  static const NSUInteger ddLogLevel = DDLogLevelAll;
  #else
  static const NSUInteger ddLogLevel = DDLogLevelInfo;
  #endif
  
  static inline BOOL ShouldLogVerbose()
  {
      return ddLogLevel >= DDLogLevelVerbose;
  }
  
  static inline BOOL ShouldLogDebug()
  {
      return ddLogLevel >= DDLogLevelDebug;
  }
  
  static inline BOOL ShouldLogInfo()
  {
      return ddLogLevel >= DDLogLevelInfo;
  }
  
  static inline BOOL ShouldLogWarning()
  {
      return ddLogLevel >= DDLogLevelWarning;
  }
  
  static inline BOOL ShouldLogError()
  {
      return ddLogLevel >= DDLogLevelError;
  }
  
  /**
   * A minimal DDLog wrapper for swift.
   */
  @interface OWSLogger : NSObject
  
  + (void)verbose:(NSString *)logString;
  + (void)debug:(NSString *)logString;
  + (void)info:(NSString *)logString;
  + (void)warn:(NSString *)logString;
  + (void)error:(NSString *)logString;
  
  + (void)flush;
  
  @end
  
  #define OWSLogPrefix()                                                                                                 \
      ([NSString stringWithFormat:@"[%@:%d %s]: ",                                                                       \
                 [[NSString stringWithUTF8String:__FILE__] lastPathComponent],                                           \
                 __LINE__,                                                                                               \
                 __PRETTY_FUNCTION__])
  
  #define OWSLogVerbose(_messageFormat, ...)                                                                             \
      do {                                                                                                               \
          DDLogVerbose(@"%@%@", OWSLogPrefix(), [NSString stringWithFormat:_messageFormat, ##__VA_ARGS__]);              \
      } while (0)
  
  #define OWSLogDebug(_messageFormat, ...)                                                                               \
      do {                                                                                                               \
          DDLogDebug(@"%@%@", OWSLogPrefix(), [NSString stringWithFormat:_messageFormat, ##__VA_ARGS__]);                \
      } while (0)
  
  #define OWSLogInfo(_messageFormat, ...)                                                                                \
      do {                                                                                                               \
          DDLogInfo(@"%@%@", OWSLogPrefix(), [NSString stringWithFormat:_messageFormat, ##__VA_ARGS__]);                 \
      } while (0)
  
  #define OWSLogWarn(_messageFormat, ...)                                                                                \
      do {                                                                                                               \
          DDLogWarn(@"%@%@", OWSLogPrefix(), [NSString stringWithFormat:_messageFormat, ##__VA_ARGS__]);                 \
      } while (0)
  
  #define OWSLogError(_messageFormat, ...)                                                                               \
      do {                                                                                                               \
          DDLogError(@"%@%@", OWSLogPrefix(), [NSString stringWithFormat:_messageFormat, ##__VA_ARGS__]);                \
      } while (0)
  
  #define OWSLogFlush()                                                                                                  \
      do {                                                                                                               \
          [DDLog flushLog];                                                                                              \
      } while (0)
  
  NS_ASSUME_NONNULL_END
  