btcpayserver/BTCPayServer/Views/UIPullPayment/SetupBoltcard.cshtml

@using BTCPayServer.Controllers
@model SetupBoltcardViewModel
@{
    Layout = "_LayoutWizard";
}

@section Navbar {
	<a href="@Url.EnsureLocal(Model.ReturnUrl, Context.Request)" id="CancelWizard" class="cancel">
        <vc:icon symbol="close" />
    </a>
}

<header class="text-center">
    <h1>@ViewData["Title"]</h1>
    <p class="lead text-secondary mt-3">Using BTCPay Server Vault (NFC)</p>
</header>

<partial name="LocalhostBrowserSupport" />

<div id="body" class="my-4">
	<form id="broadcastForm" method="post" style="display:none;">
        <input type="hidden" asp-for="WebsocketPath" />
        <input type="hidden" asp-for="ReturnUrl" />
    </form>
    <div id="vaultPlaceholder"></div>
    <button id="vault-retry" class="btn btn-primary" style="display:none;" type="button">Retry</button>
    <button id="vault-confirm" class="btn btn-primary" style="display:none;"></button>
</div>

<partial name="VaultElements" />

@section PageFootContent
{
    <script src="~/js/vaultbridge.js" type="text/javascript" defer="defer" asp-append-version="true"></script>
    <script src="~/js/vaultbridge.ui.js" type="text/javascript" defer="defer" asp-append-version="true"></script>
    <script>
		function delay(ms) {
			return new Promise(resolve => setTimeout(resolve, ms));
		}
        async function askSign() {
            var websocketPath = $("#WebsocketPath").val();
            var loc = window.location, ws_uri;
            if (loc.protocol === "https:") {
                ws_uri = "wss:";
            } else {
                ws_uri = "ws:";
            }
            ws_uri += "//" + loc.host;
            ws_uri += websocketPath;
            var html = $("#VaultConnection").html();
            $("#vaultPlaceholder").html(html);
            var vaultUI = new vaultui.VaultBridgeUI(ws_uri);
			var command = @Safe.Json(Model.Command);
			while (!await vaultUI.sendBackendCommand(command)) {
				await vaultUI.waitRetryPushed();
            }
			await delay(2000);
            $("#broadcastForm").submit();
        }
        document.addEventListener("DOMContentLoaded", function () {
            askSign();
        });
    </script>
}