Files
2026-05-20 18:29:19 -05:00

98 lines
2.7 KiB
TypeScript

"use client";
import { useEffect, useState } from "react";
type Theme = "light" | "dark";
function getPreferredTheme(): Theme {
if (typeof window === "undefined") return "light";
const stored = localStorage.getItem("theme");
if (stored === "light" || stored === "dark") return stored;
return window.matchMedia("(prefers-color-scheme: dark)").matches
? "dark"
: "light";
}
function applyTheme(theme: Theme) {
document.documentElement.classList.toggle("dark", theme === "dark");
localStorage.setItem("theme", theme);
}
export function ThemeToggle() {
const [theme, setTheme] = useState<Theme>("light");
const [mounted, setMounted] = useState(false);
useEffect(() => {
setTheme(getPreferredTheme());
setMounted(true);
}, []);
function toggle() {
const next: Theme = theme === "dark" ? "light" : "dark";
setTheme(next);
applyTheme(next);
}
return (
<button
type="button"
onClick={toggle}
aria-label={theme === "dark" ? "Switch to light mode" : "Switch to dark mode"}
className="theme-toggle group relative flex h-10 w-10 items-center justify-center rounded-full border border-[var(--border)] bg-[var(--surface)]/80 text-[var(--foreground)] shadow-sm backdrop-blur-md transition-all hover:border-[var(--accent)]/40 hover:shadow-[var(--glow-sm)]"
>
<span className="sr-only">
{mounted
? theme === "dark"
? "Light mode"
: "Dark mode"
: "Toggle theme"}
</span>
<SunIcon
className={`absolute h-[18px] w-[18px] transition-all duration-300 ${
mounted && theme === "dark"
? "rotate-0 scale-100 opacity-100"
: "rotate-90 scale-0 opacity-0"
}`}
/>
<MoonIcon
className={`absolute h-[18px] w-[18px] transition-all duration-300 ${
mounted && theme !== "dark"
? "rotate-0 scale-100 opacity-100"
: "-rotate-90 scale-0 opacity-0"
}`}
/>
</button>
);
}
function SunIcon({ className }: { className?: string }) {
return (
<svg
className={className}
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="1.75"
aria-hidden
>
<circle cx="12" cy="12" r="4" />
<path d="M12 2v2M12 20v2M4.93 4.93l1.41 1.41M17.66 17.66l1.41 1.41M2 12h2M20 12h2M4.93 19.07l1.41-1.41M17.66 6.34l1.41-1.41" />
</svg>
);
}
function MoonIcon({ className }: { className?: string }) {
return (
<svg
className={className}
viewBox="0 0 24 24"
fill="none"
stroke="currentColor"
strokeWidth="1.75"
aria-hidden
>
<path d="M21 14.5A8.5 8.5 0 0 1 9.5 3 7 7 0 1 0 21 14.5z" />
</svg>
);
}