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LIVE DEMO
Generated using
Instruct UI - An AI for Blazor UI Generation
## What's implemented
- Point-of-sale layout with responsive left navigation (MudDrawer) and top app bar (MudAppBar).
- Customer search bar and "New Customer" dialog with form validation.
- Service list presented as a simple table and Add buttons to build an order.
- Current order displayed in a MudTable with quantity controls, item remove, subtotal/tax/total calculation.
- Payment confirmation dialog with payment method selection (MudDialog + MudRadioGroup).
## Key components
- MudLayout, MudAppBar, MudDrawer, MudNavMenu
- MudTextField, MudButton, MudIconButton
- MudSimpleTable, MudTable, MudTh, MudTd
- MudCard, MudCardHeader, MudCardContent, MudCardActions
- MudForm, MudDialog, MudRadioGroup
- DialogService injection and use of IMudDialogInstance
- Model classes: OrderItemModel, CustomerModel (with DataAnnotations)
## How it works
- Services list is a local Dictionary rendered into rows; AddItemToOrder creates or increments OrderItemModel entries and calls CalculateTotals.
- Quantity updates and removes mutate the _orderItems list; CalculateTotals recomputes subtotal, tax (10%) and total and calls StateHasChanged.
- NewCustomerDialog uses MudForm with @bind-IsValid and a CustomerModel; it validates before returning a DialogResult.Ok(_customer).
- PaymentDialog receives Amount via [Parameter], shows radio options, and returns DialogResult.Ok on confirmation.
- DialogService (injected) opens dialogs and awaits results; page-level state is in component fields.
## Styling
- Uses MudBlazor components and theme variables (CSS references to --mud-palette and --mud-elevation in app.css).
- Custom .category-button CSS adds hover transform and elevation for category tiles.
- Layout uses MudGrid/MudItem responsive breakpoints (xs/md) and DrawerVariant.Responsive for small-screen behaviour.
## Reuse steps
1. Add MudBlazor NuGet and register Mud services in Program.cs (e.g. builder.Services.AddMudServices()).
2. Import MudBlazor namespaces in _Imports.razor and reference MudBlazor CSS in index.html/_Host.
3. Copy the component .razor files and PosModels.cs into a Pages or Shared folder; include app.css and ensure it loads.
4. Ensure DialogService is available (provided by MudServices) and wire data models or replace in-memory dictionaries with services.
5. Adapt payment dialog to a real payment provider and persist customers/orders through API services.
## Limitations & next steps
- This is a single-page demo: no persistence, authentication, user roles, or real payment integration are implemented.
- Tax rate and pricing are hard-coded; move to configurable settings or backend.
- Error handling, concurrency for order holds, offline/real-time sync, and server-side validation are missing.
- Add unit and component tests, accessibility checks, and localization for production use.
- Consider wiring a backend API (customers, orders, payments) and secure the DialogService flows when integrating into a larger app.