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import { useState, useEffect } from 'react';
import { useTranslation } from 'react-i18next';
import { Button } from '@/components/ui/button';
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from '@/components/ui/select';
import { Palette, Monitor, Moon, Sun, Zap, Globe } from 'lucide-react';
import { THEME, STORAGE_KEYS } from '@/constants/app';
const themeOptions = [
{ value: THEME.LIGHT, labelKey: 'theme.light', icon: Sun },
{ value: THEME.DARK, labelKey: 'theme.dark', icon: Moon },
{ value: THEME.MIDNIGHT, labelKey: 'theme.midnight', icon: Zap },
{ value: THEME.DARK_BLUE, labelKey: 'theme.darkBlue', icon: Palette },
{ value: THEME.SYSTEM, labelKey: 'theme.system', icon: Monitor },
];
const languageOptions = [
{ value: 'en', labelKey: 'language.english' },
{ value: 'es', labelKey: 'language.spanish' },
{ value: 'fr', labelKey: 'language.french' },
{ value: 'pt', labelKey: 'language.portuguese' },
{ value: 'ru', labelKey: 'language.russian' },
{ value: 'tr', labelKey: 'language.turkish' },
{ value: 'sk', labelKey: 'language.slovak' },
{ value: 'zh', labelKey: 'language.chinese' },
];
function applyTheme(theme: string) {
const root = document.documentElement;
// Remove previous theme classes
root.classList.remove('dark', 'theme-midnight', 'theme-darkblue');
switch (theme) {
case THEME.DARK:
root.classList.add('dark');
break;
case THEME.MIDNIGHT:
root.classList.add('dark');
root.classList.add('theme-midnight');
break;
case THEME.DARK_BLUE:
root.classList.add('dark');
root.classList.add('theme-darkblue');
break;
case THEME.SYSTEM: {
const prefersDark = window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;
if (prefersDark) root.classList.add('dark');
break;
}
case THEME.LIGHT:
default:
// Light: no extra class (variables from :root)
break;
}
}
export default function ThemeSelector() {
const { t, i18n } = useTranslation();
const [currentTheme, setCurrentTheme] = useState<string>(THEME.SYSTEM);
const [currentLanguage, setCurrentLanguage] = useState<string>('en');
useEffect(() => {
const storedTheme = (typeof window !== 'undefined' && localStorage.getItem(STORAGE_KEYS.THEME)) || THEME.SYSTEM;
setCurrentTheme(storedTheme);
const storedLanguage = (typeof window !== 'undefined' && localStorage.getItem(STORAGE_KEYS.LANGUAGE)) || 'en';
setCurrentLanguage(storedLanguage);
i18n.changeLanguage(storedLanguage);
}, [i18n]);
const handleThemeChange = (theme: string) => {
setCurrentTheme(theme);
try {
localStorage.setItem(STORAGE_KEYS.THEME, theme);
applyTheme(theme);
} catch (_) {
// ignore
}
};
const handleLanguageChange = (language: string) => {
setCurrentLanguage(language);
i18n.changeLanguage(language);
try {
localStorage.setItem(STORAGE_KEYS.LANGUAGE, language);
} catch (_) {
// ignore
}
};
return (
<div className="flex items-center space-x-2">
<Select value={currentTheme} onValueChange={handleThemeChange}>
<SelectTrigger className="w-[160px] h-8 border-border bg-card">
<SelectValue placeholder={t('theme.placeholder')} />
</SelectTrigger>
<SelectContent>
{themeOptions.map((option) => {
const OptionIcon = option.icon;
return (
<SelectItem key={option.value} value={option.value}>
<div className="flex items-center space-x-2">
<OptionIcon className="h-4 w-4" />
<span>{t(option.labelKey)}</span>
</div>
</SelectItem>
);
})}
</SelectContent>
</Select>
<Select value={currentLanguage} onValueChange={handleLanguageChange}>
<SelectTrigger className="w-[140px] h-8 border-border bg-card">
<SelectValue placeholder={t('language.placeholder')} />
</SelectTrigger>
<SelectContent>
{languageOptions.map((option) => (
<SelectItem key={option.value} value={option.value}>
<div className="flex items-center space-x-2">
<Globe className="h-4 w-4" />
<span>{t(option.labelKey)}</span>
</div>
</SelectItem>
))}
</SelectContent>
</Select>
</div>
);
}
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