import { State } from "./tun/tailscale_tun.js";
import { autoConf } from "./tun/tailscale_tun_auto.js";

let params = new URLSearchParams("?"+window.location.hash.substr(1));
let authKey = params.get("authKey") || undefined;
let controlUrl = params.get("controlUrl") || undefined;
console.log(authKey, controlUrl);
let loginElemUrl = controlUrl ? null : "https://login.tailscale.com/admin/machines";

let resolveLogin = null;
let loginPromise = new Promise((f,r) => {
    resolveLogin = f;
});
const loginElem = document.getElementById("loginLink");
const statusElem = document.getElementById("networkStatus");
const loginUrlCb = (url) => {
    loginElem.href = url;
    loginElem.target = "_blank";
    statusElem.innerHTML = "Tailscale Login";
    resolveLogin(url);
};
const stateUpdateCb = (state) => {
    switch(state)
    {
        case State.NeedsLogin:
        {
            break;
        }
        case State.Running:
        {
            if (loginElemUrl) {
                loginElem.href = loginElemUrl;
            }
            break;
        }
        case State.Starting:
        {
            break;
        }
        case State.Stopped:
        {
            break;
        }
        case State.NoState:
        {
            break;
        }
    }
};
const netmapUpdateCb = (map) => {
    const ip = map.self.addresses[0];
    statusElem.innerHTML = "IP: "+ip;
};
const { tcpSocket, udpSocket, up } = await autoConf({
    loginUrlCb,
    stateUpdateCb,
    netmapUpdateCb,
    authKey,
    controlUrl,
});
window.networkInterface.tcpSocket = tcpSocket;
window.networkInterface.udpSocket = udpSocket;
window.networkInterface.ready = true;
loginElem.style.cursor = "pointer";
statusElem.style.color = "white";
if (authKey) {
    if (loginElemUrl) {
        loginElem.href = loginElemUrl;
        loginElem.target = "_blank";
    }
    up();
} else {
    loginElem.onclick = () => {
        loginElem.onclick = null;
        statusElem.innerHTML = "Downloading network code...";
        const w = window.open("login.html", "_blank");
        async function waitLogin() {
        await up();
        statusElem.innerHTML = "Starting login...";
        const url = await loginPromise;
        w.location.href = url;
        }
        waitLogin();
    };
}