protected override async Task OnInitializedAsync()
{
stage = CheckoutStages.Idle;
hubConnection = MessageHub.SetupMessageHub(NavigationManager);
ConfigureMessageHub();
await hubConnection.StartAsync();
}
public async Task ShowModal(CustomerVm customerVm)
{
await CoseTerminal();
stage = CheckoutStages.Idle;
AvalibleTerminals = new List <string>();
TerminalId = null;
SelectedCustomerId = customerVm.Id;
SelectedCustomerName = customerVm.Name;
modalRef.Show();
StartScanner();
}
private async Task RequestTerminal()
{
if ((stage == CheckoutStages.TerminalScanning || stage == CheckoutStages.TerminalFound || stage == CheckoutStages.Idle) && !string.IsNullOrEmpty(SelectedCustomerId))
{
if (stage == CheckoutStages.Idle)
{
stage = CheckoutStages.TerminalScanning;
}
await hubConnection.SendAsync(nameof(MessageHub.SendFindTerminal), new FindTerminalEvent
{
StoreId = posState.StoreId,
CustomerId = SelectedCustomerId
});
}
}
public void ConfigureMessageHub()
{
hubConnection.On <OpenTerminalConfirmationEvent>(SendMethods.TerminalOpenConfirmation.ToString(), async(Event) => {
if (posState.StoreId == Event.StoreId)
{
if (SelectedCustomerId == Event.CustomerId)
{
//open terminal
stage = CheckoutStages.TerminalSelected;
TerminalId = Event.TerminalId;
var orders = posState.GetCustomerOrders(SelectedCustomerId);
await hubConnection.SendAsync(nameof(MessageHub.SendTerminalSummary), new TerminalSummaryEvent {
StoreId = posState.StoreId,
CustomerId = SelectedCustomerId,
Orders = orders,
TerminalId = TerminalId
});
StateHasChanged();
}
else
{
//terminal take by another customer
AvalibleTerminals = AvalibleTerminals.Where(_ => _ != Event.TerminalId).ToList();
StateHasChanged();
}
}
});
hubConnection.On <TerminalFoundEvent>(SendMethods.TerminalFound.ToString(), (Event) => {
if (posState.StoreId == Event.StoreId &&
SelectedCustomerId == Event.CustomerId &&
(stage == CheckoutStages.TerminalFound || stage == CheckoutStages.TerminalScanning)
)
{
if (!AvalibleTerminals.Any(_ => _ == Event.TerminalId))
{
AvalibleTerminals.Add(Event.TerminalId);
stage = CheckoutStages.TerminalFound;
StateHasChanged();
}
}
});
}
public void HideModal()
{
stage = CheckoutStages.Idle;
modalRef.Hide();
}
