51 lines
1.1 KiB
Go
51 lines
1.1 KiB
Go
|
package layout
|
||
|
|
|
||
|
|
import (
|
||
|
|
tele "git.belvedersky.ru/common/telebot"
|
||
|
|
)
|
||
|
|
|
||
|
|
// LocaleFunc is the function used to fetch the locale of the recipient.
|
||
|
|
// Returned locale will be remembered and linked to the corresponding context.
|
||
|
|
type LocaleFunc func(tele.Recipient) string
|
||
|
|
|
||
|
|
// Middleware builds a telebot middleware to make localization work.
|
||
|
|
//
|
||
|
|
// Usage:
|
||
|
|
//
|
||
|
|
// b.Use(lt.Middleware("en", func(r tele.Recipient) string {
|
||
|
|
// loc, _ := db.UserLocale(r.Recipient())
|
||
|
|
// return loc
|
||
|
|
// }))
|
||
|
|
func (lt *Layout) Middleware(defaultLocale string, localeFunc ...LocaleFunc) tele.MiddlewareFunc {
|
||
|
|
var f LocaleFunc
|
||
|
|
if len(localeFunc) > 0 {
|
||
|
|
f = localeFunc[0]
|
||
|
|
}
|
||
|
|
|
||
|
|
return func(next tele.HandlerFunc) tele.HandlerFunc {
|
||
|
|
return func(c tele.Context) error {
|
||
|
|
locale := defaultLocale
|
||
|
|
if f != nil {
|
||
|
|
if l := f(c.Sender()); l != "" {
|
||
|
|
locale = l
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
lt.SetLocale(c, locale)
|
||
|
|
|
||
|
|
defer func() {
|
||
|
|
lt.mu.Lock()
|
||
|
|
delete(lt.ctxs, c)
|
||
|
|
lt.mu.Unlock()
|
||
|
|
}()
|
||
|
|
|
||
|
|
return next(c)
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// Middleware wraps ordinary layout middleware with your default locale.
|
||
|
|
func (dlt *DefaultLayout) Middleware() tele.MiddlewareFunc {
|
||
|
|
return dlt.lt.Middleware(dlt.locale)
|
||
|
|
}
|