import type { NextApiRequest, NextApiResponse } from "next";
import { withIronSessionApiRoute } from "iron-session/next";
import { sessionOptions } from "@/lib/session";
import axios from "axios";

export default withIronSessionApiRoute(handler, sessionOptions);

async function handler(req: NextApiRequest, res: NextApiResponse) {
    if (req.method === "POST") return post(req, res);

    return res.status(404).json({ ok: false });
}

async function post(req: NextApiRequest, res: NextApiResponse) {
    if (!req.session.user) return res.status(401).json({ ok: false });

    const response = await axios.post(
        `${process.env.BACKEND_URL}/listening/instructions`,
        req.body,
        {
            headers: {
                Authorization: `Bearer ${process.env.BACKEND_JWT}`,
                Accept: 'audio/mpeg'
            },
            responseType: 'arraybuffer',
        }
    );

    res.writeHead(200, {
        'Content-Type': 'audio/mpeg',
        'Content-Length': response.data.length
    });

    res.end(response.data);
    return;
}