chatbot-ui/components/ui/language-switcher.tsx

78 lines
2.5 KiB
TypeScript

'use client'
import i18nConfig from '@/i18nConfig'
import { usePathname, useRouter } from 'next/navigation'
import { useEffect, useTransition } from 'react'
import { Globe } from 'lucide-react'
export function LanguageSwitcher() {
const router = useRouter()
const pathname = usePathname()
const [isPending, startTransition] = useTransition()
const currentLocale = pathname.split('/')[1] || i18nConfig.defaultLocale
useEffect(() => {
if (typeof window !== 'undefined') {
const saved = localStorage.getItem('preferred-language')
console.log('[LanguageSwitcher] currentLocale:', currentLocale)
console.log('[LanguageSwitcher] saved preferred-language:', saved)
if (!saved || saved !== currentLocale) {
localStorage.setItem('preferred-language', currentLocale)
console.log('[LanguageSwitcher] preferred-language updated to:', currentLocale)
}
}
}, [currentLocale])
const handleChange = (e: React.ChangeEvent<HTMLSelectElement>) => {
const newLocale = e.target.value
console.log('[LanguageSwitcher] User selected newLocale:', newLocale)
console.log('[LanguageSwitcher] Current pathname:', pathname)
if (typeof window !== 'undefined') {
localStorage.setItem('preferred-language', newLocale)
console.log('[LanguageSwitcher] Saved newLocale to localStorage')
}
let segments = pathname.split('/').filter(Boolean)
console.log('[LanguageSwitcher] Segments before change:', segments)
const localeList = [...i18nConfig.locales] as string[]
const isLocaleInPath = localeList.includes(segments[0])
console.log('[LanguageSwitcher] isLocaleInPath:', isLocaleInPath)
if (isLocaleInPath) {
segments[0] = newLocale
} else {
segments.unshift(newLocale)
}
const newPath = '/' + segments.join('/')
console.log('[LanguageSwitcher] Final newPath:', newPath)
startTransition(() => {
router.push(newPath)
router.refresh()
})
}
return (
<div className="absolute top-4 right-4 z-50 flex items-center gap-2">
<Globe size={18} className="text-muted-foreground" />
<select
className="rounded-md border px-2 py-1 text-sm bg-background text-foreground"
value={currentLocale}
onChange={handleChange}
disabled={isPending}
>
{i18nConfig.locales.map(locale => (
<option key={locale} value={locale}>
{i18nConfig.languageNames[locale] || locale.toUpperCase()}
</option>
))}
</select>
</div>
)
}