// utils/tokenHelper.ts
export async function getAccessToken_client(): Promise<string | null> {
    try {
        // Get userid from sessionStorage (browser) or cookies (server-side)
        let userId: string | null = null;

        if (typeof window !== "undefined") {
            // On client side
            console.log("Running on client side");
            userId = await sessionStorage.getItem("USERID");
            console.log("Retrieved userId from sessionStorage:", userId);
        } else {
            console.log("Running on server side");
            userId = null;
            // On server side (if needed, adjust as per cookie logic)
            // e.g., you could use cookies-next package
        }

        if (!userId) {
            console.error("UserId not found in sessionStorage/cookies");
            return null;
        }

        const response = await fetch("https://ebay.backend.data4autos.com/api/auth/turn14/get-access-token", {
            method: "POST",
            headers: { "Content-Type": "application/json" },
            body: JSON.stringify({ userid: userId }),
        });

        if (!response.ok) {
            console.error("Failed to fetch token:", response.statusText);
            return null;
        }

        const data = await response.json();

        // Assuming the API returns { "access_token": "xxxxx" }
        return data?.access_token ?? null;
    } catch (error) {
        console.error("Error fetching token:", error);
        return null;
    }
}