recode function

thousands.go

@@ -2,12 +2,19 @@ package thousands
 
 import (
 	"fmt"
-	"strings"
+	language2 "golang.org/x/text/language"
+	"golang.org/x/text/message"
 )
 
 func Separate(Number interface{}, language ...string) (string, error) {
 
-	switch Number.(type) {
+	lang := map[string]string{"de": "German", "en": "English"}
+	useLang := lang[language[0]]
+
+	p := message.NewPrinter(language2.Make(useLang))
+	formattedNumber := ""
+
+	switch n := Number.(type) {
 	case int:
 	case int8:
 	case int16:
@@ -17,9 +24,13 @@ func Separate(Number interface{}, language ...string) (string, error) {
 	case float64:
 
 	default:
-		return "", fmt.Errorf("no valid number format")
+		return "", fmt.Errorf("%T is no valid number format", n)
 	}
 
+	formattedNumber = p.Sprintf("%f", Number)
+
+	/**
+
 	formattedNumber := fmt.Sprintf("%.2f", Number)
 
 	if len(language) < 1 {
@@ -95,6 +106,6 @@ func Separate(Number interface{}, language ...string) (string, error) {
 
 		return formattedNumber, nil
 	}
-
+	*/
 	return formattedNumber, nil
 }