import { RequestHandler } from "@sveltejs/kit";
import { getApiEndpoint, ApiEndpoints } from "$lib/config";

export const GET: RequestHandler = async ({ request }) => {
    const authHeader = request.headers.get("authorization");
    let accessToken = null;
    if (authHeader && authHeader.startsWith("Bearer ")) {
        accessToken = authHeader.substring("Bearer ".length);
    }

    const url = accessToken 
        ? `${getApiEndpoint(ApiEndpoints.PAIR)}?access_token=${accessToken}`
        : getApiEndpoint(ApiEndpoints.PAIR);

    try {
        const response = await fetch(url, {
            method: "GET",
            headers: {
                Authorization: `Bearer ${import.meta.env.VITE_HF_TOKEN}`,
                "Cache-Control": "no-cache",
            },
        });

        if (response.ok) {
            const result = await response.json();
            return new Response(JSON.stringify(result), {
                status: 200,
            });
        } else {
            return new Response(JSON.stringify({ error: "Failed to fetch pair." }), {
                status: response.status,
            });
        }
    } catch (error) {
        return new Response(JSON.stringify({ error: "Failed to fetch pair." }), {
            status: 500,
        });
    }
};