langdetect.go RawHistoryFolder

1package middleware
2
3import (
4	"strings"
5
6	"github.com/labstack/echo-contrib/session"
7	"github.com/labstack/echo/v4"
8)
9
10// LangKey is a key for setting and getting the language from the context
11const LangKey = "CurrentLang"
12
13// LanguageDetectiondetects the current language and sets it in the context
14func LanguageDetection(next echo.HandlerFunc) echo.HandlerFunc {
15	return func(c echo.Context) error {
16		lang := detectCurrentLanguage(c)
17		c.Set(LangKey, lang)
18		return next(c)
19	}
20}
21
22func detectCurrentLanguage(c echo.Context) string {
23	// Check if the lang key is set in the session storage
24	sess, err := session.Get("session", c)
25	if err != nil {
26		// If session storage is not available, proceed with "Accept-Language" header detection
27		return "en"
28	}
29
30	if langValue, ok := sess.Values["lang"]; ok && langValue != nil {
31		return langValue.(string) // Return the lang value from the session storage
32	}
33
34	// If lang key is not set, proceed with "Accept-Language" header detection
35	header := c.Request().Header.Get("Accept-Language")
36	if strings.Contains(header, "fr") {
37		return "fr"
38	}
39	return "en" // Default to English
40}