31 lines
895 B
TypeScript
31 lines
895 B
TypeScript
import { useState, useEffect, useCallback } from 'react';
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type Theme = 'light' | 'dark';
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export function useTheme() {
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const [theme, setTheme] = useState<Theme>(() => {
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const stored = localStorage.getItem('theme');
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if (stored === 'light' || stored === 'dark') return stored;
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return 'light';
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});
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useEffect(() => {
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const root = 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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localStorage.setItem('theme', theme);
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const color = theme === 'dark' ? '#0a0e1a' : '#fafaf9';
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document.querySelectorAll('meta[name="theme-color"]').forEach((m) => {
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m.setAttribute('content', color);
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});
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}, [theme]);
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const toggleTheme = useCallback(() => {
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setTheme((prev) => (prev === 'light' ? 'dark' : 'light'));
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}, []);
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return { theme, toggleTheme } as const;
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}
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