add logger

logger/logger.go

@@ -0,0 +1,27 @@
+package logger
+
+import "log"
+
+type Logger struct {
+	Verbose bool
+}
+
+var logger *Logger
+
+func Get() *Logger {
+	if logger == nil {
+		logger = new(Logger)
+	}
+
+	return logger
+}
+
+func (l *Logger) SetVerbose(value bool) {
+	l.Verbose = value
+}
+
+func (l *Logger) Logf(format string, v ...any) {
+	if l.Verbose {
+		log.Printf(format, v...)
+	}
+}