package thousands

import (
	"fmt"
	language2 "golang.org/x/text/language"
	"golang.org/x/text/message"
)

func Separate(Number interface{}, language ...string) (string, error) {

	lang := map[string]string{"de": "German", "en": "English"}
	useLang := lang[language[0]]

	p := message.NewPrinter(language2.Make(useLang))

	switch n := Number.(type) {
	case int:
	case int8:
	case int16:
	case int32:
	case int64:
	case float32:
	case float64:

	default:
		return "", fmt.Errorf("%T is no valid number format", n)
	}

	formattedNumber := p.Sprintf("%d", Number)

	return formattedNumber, nil
}