btcpayserver/BTCPayServer/Blazor/PosLoginCode.razor

@if (Users?.Any() is true)
{
    <div @attributes="Attrs" class="@CssClass">
        <label for="SignedInUser" class="form-label" text-translate="true">Signed in user</label>
        <select id="SignedInUser" class="form-select" value="@_userId" @onchange="@OnUserChanged">
            <option value="" text-translate="true">None, just open the URL</option>
            @foreach (var u in Users)
            {
                <option value="@u.Key">@u.Value</option>
            }
        </select>
    </div>
}

@if (string.IsNullOrEmpty(_userId))
{
    <QrCode Data="@PosUrl" />
}
else
{
    @if (IsSelectedUserOwner() && !_ownerConfirmed)
    {
        <div>
            <p><strong>This user is Store Owner</strong></p>
            <p>Please confirm you want this QR code to be displayed.</p>

            <button type="button" class="btn btn-danger" @onclick="ConfirmOwnerDisplay">Yes, show QR code</button>
        </div>
    }
    else
    {
        <UserLoginCode UserId="@_userId" RedirectUrl="@PosPath" />
    }
}

@code {
    [Parameter, EditorRequired] public string PosPath { get; set; }

    [Parameter] public Dictionary<string, string> Users { get; set; }
    [Parameter] public string PosUrl { get; set; }

    [Parameter(CaptureUnmatchedValues = true)]
    public Dictionary<string, object> Attrs { get; set; }

    private string _userId;
    private bool _ownerConfirmed = false;
    private string CssClass => $"form-group {(Attrs?.ContainsKey("class") is true ? Attrs["class"] : "")}".Trim();

    private void OnUserChanged(ChangeEventArgs e)
    {
        _userId = e.Value?.ToString();
        _ownerConfirmed = false; // Reset confirmation when user changes
    }

    private bool IsSelectedUserOwner()
    {
        if (string.IsNullOrEmpty(_userId) || Users == null)
            return false;

        if (Users.TryGetValue(_userId, out var userInfo))
        {
            return userInfo.Contains("Owner", StringComparison.OrdinalIgnoreCase);
        }

        return false;
    }

    private void ConfirmOwnerDisplay()
    {
        _ownerConfirmed = true;
    }

}