btcpayserver/BTCPayServer/Views/Shared/PointOfSale/Public/Print.cshtml

@using BTCPayServer.Payments.Lightning
@using BTCPayServer.Plugins.PointOfSale.Models
@using BTCPayServer.Services.Stores
@using LNURL
@inject BTCPayNetworkProvider BTCPayNetworkProvider
@inject StoreRepository StoreRepository
@model BTCPayServer.Plugins.PointOfSale.Models.ViewPointOfSaleViewModel

@{
    var store = await StoreRepository.FindStore(Model.StoreId);
    Layout = "PointOfSale/Public/_Layout";
    Context.Request.Query.TryGetValue("cryptocode", out var cryptoCodeValues);
    var cryptoCode = cryptoCodeValues.FirstOrDefault() ?? "BTC";
    var supported = store.GetSupportedPaymentMethods(BTCPayNetworkProvider).OfType<LNURLPaySupportedPaymentMethod>().OrderBy(method => method.CryptoCode == cryptoCode).FirstOrDefault();
    if (supported != null && !store.GetEnabledPaymentIds(BTCPayNetworkProvider).Contains(supported.PaymentId))
    {
        supported = null;
    }
}
@section PageHeadContent {
    <style>
        /* This hides unwanted metadata such as url, date, etc from appearing on a printed page. */
        @@media print {
            @@page {
                margin-top: 0;
                margin-bottom: 0;
            }
        }
    </style>
}

@if (supported is null)
{
    <div class="alert alert-warning text-center sticky-top mb-0 rounded-0" role="alert">
        LNURL is not enabled on your store, which this print feature relies on.
        <a asp-controller="UIStores" asp-action="LightningSettings" asp-route-cryptoCode="BTC"  asp-route-storeId="@store.Id" class="alert-link p-0">
            Enable LNURL
        </a>
    </div>
}
else
{
    <div class="alert alert-info alert-dismissible d-flex align-items-center justify-content-center sticky-top mb-0 rounded-0 d-print-none fade show" role="alert">
        <button type="button" class="btn btn-info me-4 border border-light" onclick="window.print()">
            <i class="fa fa-print"></i>&nbsp;Print
        </button>
        This view is intended for printing only —
        
        <a asp-route-viewType="static" class="alert-link">Regular version</a>
    </div>
}
<div class="container public-page-wrap flex-column">
    <partial name="_StatusMessage" />
    <partial name="_StoreHeader" model="(string.IsNullOrEmpty(Model.Title) ? Model.StoreName : Model.Title, Model.LogoFileId)" />
    @if (!string.IsNullOrEmpty(Model.Description))
    {
        <div class="lead text-center">@Safe.Raw(Model.Description)</div>
    }
    <main class="flex-grow-1 justify-content-center align-self-center mx-auto py-3">
        @if (supported is not null)
        {
            if (Model.ShowCustomAmount)
            {
                Model.Items = Model.Items.Concat(new[]
                {
                    new ViewPointOfSaleViewModel.Item()
                    {
                        Description = "Create invoice to pay custom amount",
                        Title = "Custom amount",
                        BuyButtonText = Model.CustomButtonText,
                        Price = new ViewPointOfSaleViewModel.Item.ItemPrice()
                        {
                            Type = ViewPointOfSaleViewModel.Item.ItemPrice.ItemPriceType.Topup,

                        }
                    }
                }).ToArray();
            }
        }

        <div class="card-deck mx-auto">
            @for (var x = 0; x < Model.Items.Length; x++)
            {
                var item = Model.Items[x];
                <div class="card" data-id="@x">
                    <div class="card-body my-auto">
                        <h4 class="card-title text-center">@item.Title</h4>
                        @if (!string.IsNullOrEmpty(item.Description))
                        {
                            <p class="card-title text-center">@item.Description</p>
                            
                        }
                        <div class="w-100 mb-3 fs-5 text-center">
                            @switch (item.Price.Type)
                            {
                                case ViewPointOfSaleViewModel.Item.ItemPrice.ItemPriceType.Topup:
                                    <span>Any amount</span>
                                    break;
                                case ViewPointOfSaleViewModel.Item.ItemPrice.ItemPriceType.Minimum:
                                    <span>@item.Price.Formatted minimum</span>
                                    break;
                                case ViewPointOfSaleViewModel.Item.ItemPrice.ItemPriceType.Fixed:
                                    @item.Price.Formatted
                                    break;
                                default:
                                    throw new ArgumentOutOfRangeException();
                            }
                        </div>
                        @if (!item.Inventory.HasValue || item.Inventory.Value > 0)
                        {
                            if (supported != null)
                            {
                                var lnurlEndpoint = new Uri(Url.Action("GetLNURLForApp", "UILNURL", new
                                {
                                    cryptoCode = supported.CryptoCode,
                                    appid = Model.AppId,
                                    ItemCode = item.Id
                                }, Context.Request.Scheme, Context.Request.Host.ToString()));
                                var lnUrl = LNURL.EncodeUri(lnurlEndpoint, "payRequest", supported.UseBech32Scheme);
                                <a href="@lnUrl" rel="noreferrer noopener" class="d-block mx-auto text-center">
                                    <vc:qr-code data="@lnUrl.ToString().ToUpperInvariant()" />
                                </a>
                            }
                        }
                    </div>
                </div>
            }
        </div>
    </main>
    <footer class="store-footer">
        <a href="https://btcpayserver.org" target="_blank" rel="noreferrer noopener">
            Powered by <partial name="_StoreFooterLogo" />
        </a>
    </footer>
</div>