53 lines
1.4 KiB
TypeScript
53 lines
1.4 KiB
TypeScript
'use client';
|
|
|
|
import React, { createContext, useContext, useState, useEffect } from 'react';
|
|
|
|
interface ThemeContextType {
|
|
isDark: boolean;
|
|
toggleDark: () => void;
|
|
}
|
|
|
|
const ThemeContext = createContext<ThemeContextType | undefined>(undefined);
|
|
|
|
export function ThemeProvider({ children }: { children: React.ReactNode }) {
|
|
const [isDark, setIsDark] = useState(false);
|
|
|
|
useEffect(() => {
|
|
const stored = localStorage.getItem('theme');
|
|
const prefersDark = window.matchMedia('(prefers-color-scheme: dark)').matches;
|
|
const dark = stored === 'dark' || (!stored && prefersDark);
|
|
setIsDark(dark);
|
|
if (dark) {
|
|
document.documentElement.classList.add('dark');
|
|
}
|
|
}, []);
|
|
|
|
const toggleDark = () => {
|
|
setIsDark((prev) => {
|
|
const next = !prev;
|
|
if (next) {
|
|
document.documentElement.classList.add('dark');
|
|
localStorage.setItem('theme', 'dark');
|
|
} else {
|
|
document.documentElement.classList.remove('dark');
|
|
localStorage.setItem('theme', 'light');
|
|
}
|
|
return next;
|
|
});
|
|
};
|
|
|
|
return (
|
|
<ThemeContext.Provider value={{ isDark, toggleDark }}>
|
|
{children}
|
|
</ThemeContext.Provider>
|
|
);
|
|
}
|
|
|
|
export function useTheme() {
|
|
const context = useContext(ThemeContext);
|
|
if (context === undefined) {
|
|
throw new Error('useTheme must be used within a ThemeProvider');
|
|
}
|
|
return context;
|
|
}
|