Refactor log level and direction function to separate file

Moved Level constants and directionPrefix() function from log/stdlog.go to log/log.go. This change improves the organization of the code by grouping log level constants and related functions in the same file. Furthermore, this removes redundancy and ensures consistency of log level across different files.

log/log.go

@@ -10,9 +10,23 @@ const (
 	DirClientToServer                  // Client to Server communication
 )
 
+const (
+	// LevelError is the Level for only ERROR log messages
+	LevelError Level = iota
+	// LevelWarn is the Level for WARN and higher log messages
+	LevelWarn
+	// LevelInfo is the Level for INFO and higher log messages
+	LevelInfo
+	// LevelDebug is the Level for DEBUG and higher log messages
+	LevelDebug
+)
+
 // Direction is a type wrapper for the direction a debug log message goes
 type Direction int
 
+// Level is a type wrapper for an int
+type Level int
+
 // Log represents a log message type that holds a log Direction, a Format string
 // and a slice of Messages
 type Log struct {
@@ -28,3 +42,12 @@ type Logger interface {
 	Warnf(Log)
 	Errorf(Log)
 }
+
+// directionPrefix will return a prefix string depending on the Direction.
+func (l Log) directionPrefix() string {
+	p := "C <-- S:"
+	if l.Direction == DirClientToServer {
+		p = "C --> S:"
+	}
+	return p
+}

log/stdlog.go

@@ -10,9 +10,6 @@ import (
 	"log"
 )
 
-// Level is a type wrapper for an int
-type Level int
-
 // Stdlog is the default logger that satisfies the Logger interface
 type Stdlog struct {
 	l     Level
@@ -22,17 +19,6 @@ type Stdlog struct {
 	debug *log.Logger
 }
 
-const (
-	// LevelError is the Level for only ERROR log messages
-	LevelError Level = iota
-	// LevelWarn is the Level for WARN and higher log messages
-	LevelWarn
-	// LevelInfo is the Level for INFO and higher log messages
-	LevelInfo
-	// LevelDebug is the Level for DEBUG and higher log messages
-	LevelDebug
-)
-
 // CallDepth is the call depth value for the log.Logger's Output method
 // This defaults to 2 and is only here for better readablity of the code
 const CallDepth = 2
@@ -80,12 +66,3 @@ func (l *Stdlog) Errorf(lo Log) {
 		_ = l.err.Output(CallDepth, fmt.Sprintf(f, lo.Messages...))
 	}
 }
-
-// directionPrefix will return a prefix string depending on the Direction.
-func (l Log) directionPrefix() string {
-	p := "C <-- S:"
-	if l.Direction == DirClientToServer {
-		p = "C --> S:"
-	}
-	return p
-}