initial commit

1 files changed, 51 insertions, 0 deletions

diff --git a/log.go b/log.go
new file mode 100644
index 0000000..7de73e7
--- /dev/null
+++ b/log.go
@@ -0,0 +1,51 @@
+package main
+
+import (
+	"log"
+	"os"
+)
+
+const (
+	infoLevel = 1
+	errLevel  = 2
+)
+
+type Log struct {
+	level int
+}
+
+func NewLogger(logLevel string) *Log {
+
+	if logLevel == "err" {
+		return &Log{1}
+	}
+	if logLevel == "info" {
+		return &Log{2}
+	}
+	return &Log{0}
+}
+
+func (l *Log) Infof(format string, args ...interface{}) {
+
+	if l.level >= infoLevel {
+		log.SetPrefix("INFO: ")
+		log.SetOutput(os.Stdout)
+		log.Printf(format, args...)
+	}
+}
+
+func (l *Log) Errorf(format string, args ...interface{}) {
+
+	if l.level >= errLevel {
+		log.SetPrefix("ERROR: ")
+		log.SetOutput(os.Stderr)
+		log.Printf(format, args...)
+	}
+}
+
+func (l *Log) Fatalf(format string, args ...interface{}) {
+
+	log.SetPrefix("FATAL: ")
+	log.SetOutput(os.Stderr)
+	log.Fatalf(format, args...)
+}