35 lines
896 B
JavaScript
35 lines
896 B
JavaScript
import React, { createContext, useContext, useState, useEffect } from "react";
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const ThemeContext = createContext();
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export const ThemeProvider = ({ children }) => {
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const [isDark, setIsDark] = useState(() => {
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const saved = localStorage.getItem("theme");
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return saved ? saved === "dark" : true; // Default to dark
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});
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useEffect(() => {
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localStorage.setItem("theme", isDark ? "dark" : "light");
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document.documentElement.setAttribute(
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"data-theme",
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isDark ? "dark" : "light"
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);
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}, [isDark]);
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const toggleTheme = () => setIsDark(!isDark);
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return (
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<ThemeContext.Provider value={{ isDark, 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 = () => {
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const context = useContext(ThemeContext);
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if (!context) {
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throw new Error("useTheme must be used within ThemeProvider");
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}
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return context;
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};
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