45 lines
1.2 KiB
React
45 lines
1.2 KiB
React
'use client';
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import {createContext, useContext, useEffect, useState} from 'react';
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const ThemeContext = createContext(null);
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export function ThemeProvider({children}) {
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const [theme, setTheme] = useState('light');
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const [mounted, setMounted] = useState(false);
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useEffect(() => {
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const saved = window.localStorage.getItem('rm-theme');
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if (saved === 'light' || saved === 'dark') {
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setTheme(saved);
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} else if (window.matchMedia('(prefers-color-scheme: dark)').matches) {
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setTheme('dark');
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}
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setMounted(true);
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}, []);
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useEffect(() => {
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const root = document.documentElement;
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root.classList.remove('light', 'dark');
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root.classList.add(theme);
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window.localStorage.setItem('rm-theme', theme);
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}, [theme]);
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const toggleTheme = () => setTheme((t) => (t === 'dark' ? 'light' : 'dark'));
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return (
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<ThemeContext.Provider value={{theme, setTheme, toggleTheme, mounted}}>
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{children}
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</ThemeContext.Provider>
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);
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}
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export function useTheme() {
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const ctx = useContext(ThemeContext);
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if (!ctx) throw new Error('useTheme must be used within ThemeProvider');
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return ctx;
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}
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