"use server";

import {cookies} from "next/headers";

// ✅ Get theme from cookies OR detect system preference
export async function getInitialTheme(): Promise<"dark" | "light"> {
    const themeCookie = (await cookies()).get("theme")?.value;

    if (themeCookie === "dark" || themeCookie === "light") {
        return themeCookie;
    }

    // Detect system preference
    const prefersDarkMode =
        typeof window !== "undefined" && window.matchMedia("(prefers-color-scheme: dark)").matches;

    return prefersDarkMode ? "dark" : "light";
}