nip46-redirect.ts

signer.rpc.on("authUrl", (url: string) => {
    popup = window.open(url, "_blank", "width=400,height=600");

    if (!popup) {
        popupNotOpened = true;
        redirectToAuthUrlWithCallback(url);
    }

    authUrl = url;
    let checkPopup = setInterval(() => {
        if (!popup) {
            popupNotOpened = true;
        }
        if (popup?.closed) {
            clearInterval(checkPopup);
            creating = false;
        }
    }, 500); // Check every 500ms
});

function redirectToAuthUrlWithCallback(url: string) {
    const redirectUrl = new URL(url);
    const callbackPath = "/auth/callback";
    const currentUrl = new URL(window.location.href);
    const callbackUrl = new URL(callbackPath, currentUrl.origin);
    redirectUrl.searchParams.set("callbackUrl", callbackUrl.toString());
    localStorage.setItem("intended-url", window.location.href);
    window.location.href = redirectUrl.toString();
}