59 lines
1.5 KiB
TypeScript
59 lines
1.5 KiB
TypeScript
"use client";
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import type React from "react";
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import { createContext, useState, useContext, useEffect } from "react";
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type Theme = "light" | "dark";
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type 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: React.ReactNode }> = ({
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children,
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}) => {
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const [theme, setTheme] = useState<Theme>("light");
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const [isInitialized, setIsInitialized] = useState(false);
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useEffect(() => {
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// This code will only run on the client side
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const savedTheme = localStorage.getItem("theme") as Theme | null;
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const initialTheme = savedTheme || "light"; // Default to light theme
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setTheme(initialTheme);
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setIsInitialized(true);
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}, []);
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useEffect(() => {
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if (isInitialized) {
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localStorage.setItem("theme", theme);
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if (theme === "dark") {
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document.documentElement.classList.add("dark");
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} else {
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document.documentElement.classList.remove("dark");
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}
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}
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}, [theme, isInitialized]);
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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 = () => {
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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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