addEventListener("fetch", (event) => {
    event.respondWith(
        handleRequest(event.request).catch(
            (err) => new Response(err.stack, { status: 500 })
        )
    );
});

async function handleRequest(request) {
    const { pathname } = new URL(request.url);

    if (pathname.startsWith("/api")) {
        return new Response(JSON.stringify({ pathname }), {
            headers: { "Content-Type": "application/json" },
        });
    }

    if (pathname === "/") {
        if (request.method === "GET") {
            const index = await static.get('index');
            return new Response(index,
                { headers: { "Content-Type": "text/html;charset=utf-8" } })
        }
        else if (request.method === "POST") return parse_douyin_url(request);
        return new Response("index");
    }

    return new Response('hello');
}

async function parse_douyin_url(request) {
    const { headers } = request
    const contentType = headers.get("content-type") || ""
    try {
        if (contentType.includes("application/json")) {
            let data = await request.json();
            let room_data = data.room_id;
            //如果不是房间id需要进行解析
            if (room_data.includes('v.douyin.com')) {
                let response = await fetch(new Request(room_data, { headers: { "User-Agent": "Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1" } }))
                let regex = /(\d{19})/gm;
                let l = regex.exec(response.url);
                room_data = l[0];
            }
            let response = await fetch(new Request(`https://webcast.amemv.com/webcast/reflow/${room_data}`, { headers: { "User-Agent": "Mozilla/5.0 (iPhone; CPU iPhone OS 13_2_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/13.0.3 Mobile/15E148 Safari/604.1" } }))
            let t = await response.text();
            let flv_regex = /"rtmp_pull_url":"(.*?flv)"/;
            let hls_regex = /"hls_pull_url":"(.*?m3u8)"/;
            let flv = flv_regex.exec(t);
            let hls = hls_regex.exec(t);
            return new Response(JSON.stringify({ status: 0, rtmp_pull_url: flv[1].replace("_hd", "").replace("http://","https://"), hls_pull_url: hls[1].replace("_hd", "").replace("http://","https://") }),
                { headers: { "Content-Type": "application/json" } });
        }
    }
    catch (e) {
        return new Response(JSON.stringify({ status: 1 }),
            { headers: { "Content-Type": "application/json" }, status: 500 });
    }
}