chore: added Log method and optimizations (#31)

internal/infrastructure/logger/zerolog.go

@@ -6,31 +6,27 @@ import (
 	"github.com/rs/zerolog"
 )
 
-// Note: add time format types supported by zerolog as needed
-const (
-	DefaultTimeFormat TimeFormat = "2006/01/02 15:04:05"
-)
-
+// ZeroLog is a logger type with zerolog.Logger support
 type ZeroLog struct {
 	logger *zerolog.Logger
 }
 
-type TimeFormat string
-
-func (tf TimeFormat) String() string {
-	return string(tf)
-}
-
-func NewZeroLog(timeFormat TimeFormat) *ZeroLog {
+// NewZeroLog returns an implemented ZeroLog instance.
+func NewZeroLog() ZeroLog {
 	writer := zerolog.NewConsoleWriter(func(w *zerolog.ConsoleWriter) {
 		w.Out = os.Stderr
-		w.TimeFormat = timeFormat.String()
+		w.TimeFormat = "2006/01/02 15:04:05"
 	})
 
 	zerolog.SetGlobalLevel(zerolog.DebugLevel)
 	zl := zerolog.New(writer).With().Timestamp().Logger()
 
-	return &ZeroLog{
+	return ZeroLog{
 		logger: &zl,
 	}
 }
+
+// Log returns the pointer of the zerolog.Logger object
+func (l ZeroLog) Log() *zerolog.Logger {
+	return l.logger
+}

internal/infrastructure/logger/zerolog_test.go

@@ -7,6 +7,7 @@ import (
 )
 
 func TestNewZeroLog(t *testing.T) {
-	zl := NewZeroLog(DefaultTimeFormat)
-	assert.NotNil(t, zl)
+	zl := NewZeroLog()
+	assert.NotEqual(t, zl, ZeroLog{})
+	zl.Log().Info().Msg("NewZeroLog tested successfully")
 }