btcpayserver/BTCPayServer/Views/Shared/PosData.cshtml

@model (Dictionary<string, object> Items, int Level)

@functions {
    private bool IsValidURL(string source)
    {
        return Uri.TryCreate(source, UriKind.Absolute, out var uriResult) &&
               (uriResult.Scheme == Uri.UriSchemeHttp || uriResult.Scheme == Uri.UriSchemeHttps);
    }
}

@if (Model.Items.Any())
{
    var hasCart = Model.Items.ContainsKey("Cart");
    <table class="table my-0" v-pre>
        @if (hasCart || (Model.Items.ContainsKey("Subtotal") && Model.Items.ContainsKey("Total")))
        {
            @if (hasCart)
            {
                <tbody>
                @foreach (var (key, value) in (Dictionary<string, object>)Model.Items["Cart"])
                {
                    <tr>
                        <th>@key</th>
                        <td class="text-end">@value</td>
                    </tr>
                }
                </tbody>
            }
            <tfoot style="border-top-width:@(hasCart ? "3px" : "0")">
                @if (Model.Items.ContainsKey("Subtotal"))
                {
                    <tr>
                        <th>Subtotal</th>
                        <td class="text-end">@Model.Items["Subtotal"]</td>
                    </tr>
                }
                @if (Model.Items.ContainsKey("Discount"))
                {
                    <tr>
                        <th>Discount</th>
                        <td class="text-end">@Model.Items["Discount"]</td>
                    </tr>
                }
                @if (Model.Items.ContainsKey("Tip"))
                {
                    <tr>
                        <th>Tip</th>
                        <td class="text-end">@Model.Items["Tip"]</td>
                    </tr>
                }
                @if (Model.Items.ContainsKey("Total"))
                {
                    <tr style="border-top-width:3px">
                        <th>Total</th>
                        <td class="text-end">@Model.Items["Total"]</td>
                    </tr>
                }
            </tfoot>
        }
        else
        {
            foreach (var (key, value) in Model.Items)
            {
                <tr>
                    @if (value is string str)
                    {
                        if (!string.IsNullOrEmpty(key))
                        {
                            <th>@key</th>
                        }
                        <td style="white-space:pre-wrap">@* Explicitely remove whitespace at front here *@@if (IsValidURL(str)){<a href="@str" target="_blank" rel="noreferrer noopener">@str</a>}else {@str.Trim()}</td>
                    }
                    else if (value is Dictionary<string, object> { Count: > 0 } subItems)
                    {
                        <td colspan="2">
                            @{
                                @if (!string.IsNullOrEmpty(key))
                                {
                                    Write(Html.Raw($"<h{Model.Level + 3} class=\"mb-3 fw-semibold\">"));
                                    Write(key);
                                    Write(Html.Raw($"</h{Model.Level + 3}>"));
                                }
                            }
                            <partial name="PosData" model="@((subItems, Model.Level + 1))" />
                        </td>
                    }
                    else if (value is IEnumerable<object> valueArray)
                    {
                        <td colspan="2">
                            @{
                                @if (!string.IsNullOrEmpty(key))
                                {
                                    Write(Html.Raw($"<h{Model.Level + 3} class=\"mb-3 fw-semibold\">"));
                                    Write(key);
                                    Write(Html.Raw($"</h{Model.Level + 3}>"));
                                }
                            }
                            @foreach (var item in valueArray)
                            {
                                @if (item is Dictionary<string, object> { Count: > 0 } subItems2)
                                {
                                    <partial name="PosData" model="@((subItems2, Model.Level + 1))" />
                                }
                                else
                                {
                                    <partial name="PosData" model="@((new Dictionary<string, object> { { "", item } }, Model.Level + 1))" />
                                }
                            }
                        </td>
                    }
                </tr>
            }
        }
    </table>
}