43 lines
1.2 KiB
TypeScript
43 lines
1.2 KiB
TypeScript
import React, { createContext, useContext, useEffect, useState, ReactNode } from 'react';
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import { useLocalStorage } from '../hooks/useLocalStorage';
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type Theme = 'light' | 'dark';
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interface ThemeContextType {
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theme: Theme;
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toggleTheme: () => void;
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}
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const ThemeContext = createContext<ThemeContextType | undefined>(undefined);
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export const ThemeProvider: React.FC<{ children: ReactNode }> = ({ children }) => {
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const [theme, setTheme] = useLocalStorage<Theme>('theme', 'light');
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useEffect(() => {
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const root = window.document.documentElement;
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if (theme === 'dark') {
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root.classList.add('dark');
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} else {
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root.classList.remove('dark');
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}
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}, [theme]);
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const toggleTheme = () => {
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setTheme(prevTheme => (prevTheme === 'light' ? 'dark' : 'light'));
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};
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return (
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<ThemeContext.Provider value={{ theme, toggleTheme }}>
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{children}
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</ThemeContext.Provider>
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);
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};
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export const useTheme = (): ThemeContextType => {
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const context = useContext(ThemeContext);
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if (context === undefined) {
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throw new Error('useTheme must be used within a ThemeProvider');
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}
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return context;
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};
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