start big refactoring

internal/logger/logger.go

@@ -0,0 +1,37 @@
+package logger
+
+import (
+	"log"
+	"os"
+)
+
+// Logger is the logger used to print to the command line
+type Logger struct {
+	infoLogger  *log.Logger
+	errorLogger *log.Logger
+	eventLogger *log.Logger
+}
+
+// NewLogger creates a new logger instance
+func NewLogger() *Logger {
+	return &Logger{
+		infoLogger:  log.New(os.Stdout, "", 0),
+		errorLogger: log.New(os.Stderr, "", 0),
+		eventLogger: log.New(os.Stdout, "", log.Ldate|log.Ltime),
+	}
+}
+
+// Infof writes an info message to stdout
+func (l *Logger) Infof(format string, v ...interface{}) {
+	l.infoLogger.Printf(format, v...)
+}
+
+// Errorf writes an error message to stderr
+func (l *Logger) Errorf(format string, v ...interface{}) {
+	l.errorLogger.Printf(format, v...)
+}
+
+// Eventf writes an event with timestamp to stdout
+func (l *Logger) Eventf(format string, v ...interface{}) {
+	l.eventLogger.Printf(format, v...)
+}