| 'use client'; |
|
|
| import { createContext, useContext, useEffect, useState } from 'react'; |
|
|
| type Theme = 'light' | 'dark'; |
|
|
| interface ThemeContextValue { |
| theme: Theme; |
| toggleTheme: () => void; |
| } |
|
|
| const ThemeContext = createContext<ThemeContextValue>({ |
| theme: 'dark', |
| toggleTheme: () => {}, |
| }); |
|
|
| export const useTheme = () => useContext(ThemeContext); |
|
|
| export const ThemeProvider = ({ children }: { children: React.ReactNode }) => { |
| const [theme, setTheme] = useState<Theme>('dark'); |
| const [mounted, setMounted] = useState(false); |
|
|
| useEffect(() => { |
| const stored = localStorage.getItem('theme') as Theme | null; |
| const initial = stored || 'dark'; |
| setTheme(initial); |
| document.documentElement.classList.toggle('dark', initial === 'dark'); |
| setMounted(true); |
| }, []); |
|
|
| const toggleTheme = () => { |
| const next = theme === 'dark' ? 'light' : 'dark'; |
| setTheme(next); |
| localStorage.setItem('theme', next); |
| document.documentElement.classList.toggle('dark', next === 'dark'); |
| }; |
|
|
| if (!mounted) return null; |
|
|
| return <ThemeContext.Provider value={{ theme, toggleTheme }}>{children}</ThemeContext.Provider>; |
| }; |
|
|
