Merge pull request 'Using shared service for Cart management' (#56) from cart into main

Reviewed-on: #56

MidrandBookshop/Components/Layout/MainLayout.razor.cs

@@ -1,5 +1,5 @@
-using MidrandBookshop.Services.ShoppingCart;
+using LiteCharms.Features.MidrandBooks.Payments;
-using MidrandBookshop.Services.ShoppingCart.Models;
+using LiteCharms.Features.MidrandBooks.Payments.Models;
 
 namespace MidrandBookshop.Components.Layout;
 
@@ -122,7 +122,7 @@ public partial class MainLayout(CartService cartService) : IDisposable
         await cartService.SaveCartToStorageAsync();
     }
 
-    private decimal GetCartTotal() => ShoppingCart?.TotalPrice ?? 0.00m;
+    private decimal GetCartTotal() => ShoppingCart?.TotalAmount ?? 0.00m;
 
     private void RedirectToCart()
     {

MidrandBookshop/Components/Pages/Cart.razor

@@ -1,106 +0,0 @@
-@page "/cart"
-
-<div class="container py-5" style="max-width: 900px;">
-    <div class="d-flex align-items-center justify-content-between mb-5">
-        <h2 class="fw-bold m-0">Your Cart</h2>
-        <a href="/" class="text-dark text-decoration-none small fw-bold tracking-widest">CONTINUE SHOPPING</a>
-    </div>
-
-    @if (!CartItems.Any())
-    {
-        <div class="text-center py-5 border rounded-3 bg-white">
-            <p class="text-muted mb-4">Your collection is currently empty.</p>
-            <a href="/" class="btn btn-dark rounded-pill px-4">Browse Catalog</a>
-        </div>
-    }
-    else
-    {
-        <div class="card border-0 shadow-sm p-4 mb-4">
-            @foreach (var item in CartItems)
-            {
-                <div class="row align-items-center py-4 @(item != CartItems.Last() ? "border-bottom" : "")">
-                    <!-- Item Detail -->
-                    <div class="col-12 col-md-6 d-flex align-items-center gap-4">
-                        <div class="bg-light d-flex align-items-center justify-content-center" style="width: 70px; height: 95px;">
-                            <span class="text-muted" style="font-size: 0.5rem;">[COVER]</span>
-                        </div>
-                        <div>
-                            <h5 class="fw-bold mb-1">@item.Title</h5>
-                            <p class="text-muted small mb-0">by @item.Author</p>
-                        </div>
-                    </div>
-
-                    <!-- Quantity -->
-                    <div class="col-6 col-md-3 d-flex justify-content-center">
-                        <div class="d-flex align-items-center border rounded-pill bg-light px-2">
-                            <button class="btn btn-sm border-0 text-dark" @onclick="() => ChangeQuantity(item, -1)">-</button>
-                            <span class="px-3 fw-bold">@item.Quantity</span>
-                            <button class="btn btn-sm border-0 text-dark" @onclick="() => ChangeQuantity(item, 1)">+</button>
-                        </div>
-                    </div>
-
-                    <!-- Price & Remove -->
-                    <div class="col-6 col-md-3 text-end d-flex align-items-center justify-content-end gap-3">
-                        <span class="fw-bold">R @(item.Price * item.Quantity)</span>
-                        <button class="btn btn-sm p-1 text-muted" @onclick="() => RemoveFromCart(item)">
-                            <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg>
-                        </button>
-                    </div>
-                </div>
-            }
-        </div>
-
-        <!-- Cart Totals Section -->
-        <div class="row justify-content-end">
-            <div class="col-md-5">
-                <div class="bg-white p-4 rounded-3 border">
-                    <div class="d-flex justify-content-between mb-3">
-                        <span class="text-muted">Subtotal</span>
-                        <span class="fw-bold">R @Subtotal.ToString("F2")</span>
-                    </div>
-                    <div class="d-flex justify-content-between mb-4">
-                        <span class="text-muted">VAT (15%)</span>
-                        <span class="fw-bold">R @VatAmount.ToString("F2")</span>
-                    </div>
-                    <hr />
-                    <div class="d-flex justify-content-between align-items-center mb-4">
-                        <span class="fw-bold h5 mb-0">Total</span>
-                        <span class="fw-bold h4 mb-0">R @Total.ToString("F2")</span>
-                    </div>
-                    <a href="/checkout" class="btn btn-dark w-100 rounded-pill py-3">Proceed to Checkout</a>
-                </div>
-            </div>
-        </div>
-    }
-</div>
-
-@code {
-    public class CartItem
-    {
-        public int Id { get; set; }
-        public string Title { get; set; } = string.Empty;
-        public string Author { get; set; } = string.Empty;
-        public int Price { get; set; }
-        public int Quantity { get; set; }
-    }
-
-    private List<CartItem> CartItems = new()
-    {
-        new CartItem { Id = 1, Title = "Letters from M/M (Paris)", Author = "M/M Paris", Price = 720, Quantity = 1 },
-        new CartItem { Id = 2, Title = "Daan Paans: Floating Signifiers", Author = "Daan Paans", Price = 540, Quantity = 1 },
-        new CartItem { Id = 3, Title = "Album Architectures, Maputo", Author = "Guedes Archive", Price = 350, Quantity = 1 }
-    };
-
-    // Computed Properties for Calculations
-    private decimal Subtotal => CartItems.Sum(i => (decimal)i.Price * i.Quantity);
-    private decimal VatAmount => Subtotal * 0.15m;
-    private decimal Total => Subtotal + VatAmount;
-
-    private void ChangeQuantity(CartItem item, int delta)
-    {
-        item.Quantity += delta;
-        if (item.Quantity <= 0) CartItems.Remove(item);
-    }
-
-    private void RemoveFromCart(CartItem item) => CartItems.Remove(item);
-}

MidrandBookshop/Components/Pages/CartReview.razor

@@ -0,0 +1,98 @@
+@page "/cart"
+@rendermode InteractiveServer
+
+<div class="container py-5" style="max-width: 1000px; font-family: system-ui, -apple-system, sans-serif;">
+
+    <div class="d-flex align-items-baseline justify-content-between mb-5 border-bottom pb-3">
+        <h1 class="ff-serif mb-0" style="font-size: 2.25rem; font-family: 'Playfair Display', Georgia, serif; font-weight: 400; letter-spacing: -0.5px;">Your Cart</h1>
+        <a href="/" class="text-dark text-decoration-none small fw-semibold tracking-widest text-uppercase" style="font-size: 0.75rem; letter-spacing: 1.5px;">Continue Shopping</a>
+    </div>
+
+    @if (!ShoppingCart.Items.Any())
+    {
+        <div class="text-center py-5 my-4">
+            <div class="mb-4 text-muted-50">
+                <svg width="64" height="64" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="1" stroke-linecap="round" stroke-linejoin="round" class="text-secondary opacity-50"><circle cx="9" cy="21" r="1"></circle><circle cx="20" cy="21" r="1"></circle><path d="M1 1h4l2.68 13.39a2 2 0 0 0 2 1.61h9.72a2 2 0 0 0 2-1.61L23 6H6"></path></svg>
+            </div>
+            <h3 class="ff-serif mb-2" style="font-family: 'Playfair Display', Georgia, serif; font-weight: 400;">Your collection is currently vacant.</h3>
+            <p class="text-muted small mb-4" style="letter-spacing: 0.2px;">Even with careful scrutiny, the requested shelf remains empty.</p>
+            <a href="/" class="btn btn-dark rounded-pill px-4 py-2 text-uppercase fw-semibold tracking-widest" style="font-size: 0.75rem; letter-spacing: 1px; background-color: #1c1f22;">Browse Catalog</a>
+        </div>
+    }
+    else
+    {
+        <div class="row g-5">
+            <div class="col-12 col-lg-7">
+                <div class="d-flex flex-column gap-1">
+                    @foreach (var item in ShoppingCart.Items)
+                    {
+                        <div class="row align-items-center py-4 border-bottom position-relative">
+
+                            <div class="col-12 col-md-7 d-flex align-items-center gap-4 mb-3 mb-md-0">
+                                <div class="bg-light d-flex align-items-center justify-content-center p-2 rounded-1 state-card-shadow"
+                                     style="width: 70px; height: 95px; background-color: #f8f9fa; box-shadow: 0 4px 12px rgba(0,0,0,0.06), 0 1px 3px rgba(0,0,0,0.04);">
+                                    @if (!string.IsNullOrWhiteSpace(item.Product!.ImageUrl))
+                                    {
+                                        <img src="@item.Product!.ImageUrl" class="img-fluid" style="max-height: 80px; object-fit: contain; filter: drop-shadow(2px 4px 6px rgba(0,0,0,0.15));" alt="@item.Product.Name" />
+                                    }
+                                    else
+                                    {
+                                        <span class="text-muted fw-bold font-monospace" style="font-size: 0.6rem; letter-spacing: 1px;">[COVER]</span>
+                                    }
+                                </div>
+                                <div style="max-width: 75%;">
+                                    <h5 class="fw-semibold mb-1 text-dark" style="font-size: 0.95rem; line-height: 1.4; letter-spacing: -0.1px;">@item.Product!.Name</h5>
+                                    <p class="text-muted small mb-0" style="font-size: 0.8rem; letter-spacing: 0.1px;">by @($"{item.Author!.Name} {item.Author!.LastName}")</p>
+                                </div>
+                            </div>
+
+                            <div class="col-6 col-md-3 d-flex justify-content-md-center align-items-center">
+                                <div class="d-flex align-items-center border rounded-pill bg-white px-1 py-1" style="border-color: #e9ecef !important;">
+                                    <button class="btn btn-sm border-0 bg-transparent text-muted px-2 py-0" style="font-size: 0.9rem;" @onclick="() => DecreaseQty(item, -1)">—</button>
+                                    <span class="px-2 fw-semibold text-dark" style="font-size: 0.85rem; min-width: 20px; text-align: center;">@item.Quantity</span>
+                                    <button class="btn btn-sm border-0 bg-transparent text-muted px-2 py-0" style="font-size: 0.9rem;" @onclick="() => IncreaseQty(item)">+</button>
+                                </div>
+                            </div>
+
+                            <div class="col-6 col-md-2 text-end d-flex align-items-center justify-content-end gap-3">
+                                <span class="fw-semibold text-dark" style="font-size: 0.95rem; letter-spacing: -0.2px;">R @(item.Amount.ToString("N2", System.Globalization.CultureInfo.GetCultureInfo("js")))</span>
+                                <button class="btn btn-sm p-1 text-muted opacity-50 hover-opacity-100 border-0 bg-transparent" style="transition: opacity 0.2s;" @onclick="() => RemoveFromCart(item)" title="Remove item">
+                                    <svg width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"><line x1="18" y1="6" x2="6" y2="18"></line><line x1="6" y1="6" x2="18" y2="18"></line></svg>
+                                </button>
+                            </div>
+
+                        </div>
+                    }
+                </div>
+            </div>
+
+            <div class="col-12 col-lg-5">
+                <div class="bg-white p-4 rounded-3 border-0 sticky-top" style="top: 2rem; box-shadow: 0 10px 30px rgba(0,0,0,0.04); border: 1px solid #f1f3f5 !important;">
+                    <h4 class="ff-serif mb-4" style="font-family: 'Playfair Display', Georgia, serif; font-weight: 400; font-size: 1.3rem;">Order Summary</h4>
+
+                    <div class="d-flex justify-content-between mb-3" style="font-size: 0.9rem;">
+                        <span class="text-muted">Subtotal</span>
+                        <span class="fw-normal text-dark">R @(ShoppingCart.TotalAmount.ToString("N2", System.Globalization.CultureInfo.GetCultureInfo("js")))</span>
+                    </div>
+
+                    <div class="d-flex justify-content-between mb-4" style="font-size: 0.9rem;">
+                        <span class="text-muted">VAT (15%)</span>
+                        <span class="fw-normal text-dark">R @(ShoppingCart.TotalVat.ToString("N2", System.Globalization.CultureInfo.GetCultureInfo("js")))</span>
+                    </div>
+
+                    <hr style="border-color: #f1f3f5;" />
+
+                    <div class="d-flex justify-content-between align-items-baseline mb-4 mt-2">
+                        <span class="fw-semibold h6 mb-0 text-dark" style="font-size: 1rem;">Total</span>
+                        <span class="fw-bold text-dark" style="font-size: 1.4rem; letter-spacing: -0.5px;">R @((ShoppingCart.TotalAmount + ShoppingCart.TotalVat).ToString("N2", System.Globalization.CultureInfo.GetCultureInfo("js")))</span>
+                    </div>
+
+                    <a href="/checkout" class="btn btn-dark w-100 rounded-pill py-3 text-uppercase fw-semibold tracking-widest border-0"
+                       style="font-size: 0.75rem; letter-spacing: 1.5px; background-color: #1c1f22; transition: background-color 0.2s;">
+                        Proceed to Checkout
+                    </a>
+                </div>
+            </div>
+        </div>
+    }
+</div>

MidrandBookshop/Components/Pages/CartReview.razor.cs

@@ -0,0 +1,36 @@
+using LiteCharms.Features.MidrandBooks.Payments;
+using LiteCharms.Features.MidrandBooks.Payments.Models;
+
+namespace MidrandBookshop.Components.Pages;
+
+public partial class CartReview(CartService cartService)
+{
+    protected Cart ShoppingCart => cartService?.ShoppingCart!;
+
+    protected async void IncreaseQty(CartItem item)
+    {
+        if (item is not null)
+        {
+            cartService.UpdateQuantity(item!.Price!.Id, 1);
+
+            await cartService.SaveCartToStorageAsync();
+        }
+    }
+    protected async void DecreaseQty(CartItem item, int delta)
+    {
+        var peekQuantity = item.Quantity + delta;
+
+        if (peekQuantity < 1) return;
+
+        cartService.UpdateQuantity(item!.Price!.Id, delta);
+
+        await cartService.SaveCartToStorageAsync();
+    }
+
+    private async void RemoveFromCart(CartItem item)
+    {
+        cartService.RemoveOneItem(item.Price!.Id);
+
+        await cartService.SaveCartToStorageAsync();
+    }
+}

MidrandBookshop/Components/Pages/CartReview.razor.css

@@ -0,0 +1,2 @@
+body {
+}

MidrandBookshop/Components/Pages/Checkout.razor

@@ -1,19 +1,18 @@
 @page "/checkout"
 @inject NavigationManager Navigation
+@rendermode InteractiveServer
+@attribute [Authorize]
 
 <div class="container py-5">
     <h2 class="fw-bold mb-4">Checkout</h2>
     <div class="row g-5">
-
-        <!-- LEFT COLUMN: SHIPPING & CART -->
         <div class="col-lg-8">
-            <!-- 1. Cart Items -->
             <div class="card border-0 shadow-sm p-4 mb-4">
                 <h5 class="fw-bold mb-3">Your Items</h5>
-                @foreach (var item in CartItems)
+                @foreach (var item in ShoppingCart.Items)
                 {
                     <div class="d-flex align-items-center justify-content-between pb-3 border-bottom mb-3">
-                        <div><h6 class="mb-0">@item.Title</h6><small class="text-muted">@item.Author</small></div>
+                        <div><h6 class="mb-0">@item.Product!.Name</h6><small class="text-muted">@($"{item.Author!.Name} {item.Author.LastName}")</small></div>
                         <div class="d-flex align-items-center gap-3">
                             <div class="d-flex border rounded-pill">
                                 <button class="btn btn-sm px-2" @onclick="() => ChangeQuantity(item, -1)">-</button>
@@ -26,7 +25,6 @@
                 }
             </div>
 
-            <!-- 2. Shipping Options -->
             <div class="card border-0 shadow-sm p-4 mb-4">
                 <h5 class="fw-bold mb-3">Shipping Method</h5>
                 <div class="form-check mb-2">
@@ -41,70 +39,28 @@
                 </div>
             </div>
 
-            <!-- 3. Address Fields -->
             <div class="card border-0 shadow-sm p-4">
                 <h5 class="fw-bold mb-3">Shipping Address</h5>
                 <div class="form-check mb-3">
                     <input class="form-check-input" type="checkbox" id="sameAsBilling" @bind="IsSameAddress">
                     <label class="form-check-label" for="sameAsBilling">Billing address same as shipping</label>
                 </div>
-                <!-- Add text inputs for address here, show/hide based on IsSameAddress -->
             </div>
         </div>
 
-        <!-- RIGHT COLUMN: STICKY SUMMARY -->
         <div class="col-lg-4">
             <div class="card border-0 shadow-sm p-4 sticky-top" style="top: 100px;">
                 <h5 class="fw-bold mb-3">Order Summary</h5>
-                <div class="d-flex justify-content-between mb-2"><span>Subtotal</span><span>R @Subtotal.ToString("F2")</span></div>
+                <div class="d-flex justify-content-between mb-2"><span>Subtotal</span><span>R @ShoppingCart.TotalAmount.ToString("F2")</span></div>
-                <div class="d-flex justify-content-between mb-2"><span>VAT (15%)</span><span>R @VatAmount.ToString("F2")</span></div>
+                <div class="d-flex justify-content-between mb-2"><span>VAT (15%)</span><span>R @ShoppingCart.TotalVat.ToString("F2")</span></div>
-                <div class="d-flex justify-content-between mb-2"><span>Shipping</span><span>R @ShippingCost.ToString("F2")</span></div>
+                <div class="d-flex justify-content-between mb-2"><span>Shipping</span><span>R @($"{ShippingCost:F2}")</span></div>
                 <hr />
                 <div class="d-flex justify-content-between mb-4">
                     <span class="fw-bold">Total Due</span>
-                    <h4 class="fw-bold">R @((Subtotal + VatAmount + ShippingCost).ToString("F2"))</h4>
+                    <h4 class="fw-bold">R @($"{ShoppingCart.TotalAmount + ShoppingCart.TotalVat + ShippingCost:F2}")</h4>
                 </div>
                 <button class="btn btn-dark w-100 py-3 rounded-pill" @onclick="CompletePurchase">Complete Purchase</button>
             </div>
         </div>
     </div>
-</div>
+</div>
-
-@code {
-    private decimal ShippingCost = 0;
-    private bool IsSameAddress = true;
-
-    // Calculations
-    private decimal Subtotal => CartItems.Sum(i => (decimal)i.Price * i.Quantity);
-    private decimal VatAmount => Subtotal * 0.15m;
-
-    // Assuming your CartItems list is managed via a Service or cascading parameter
-    // Here it is locally mocked for this example
-    private List<CartItem> CartItems = new()
-    {
-        new CartItem { Id = 1, Title = "Letters from M/M (Paris)", Author = "M/M Paris", Price = 720, Quantity = 1 },
-        new CartItem { Id = 2, Title = "Daan Paans: Floating Signifiers", Author = "Daan Paans", Price = 540, Quantity = 1 }
-    };
-
-    private void ChangeQuantity(CartItem item, int delta)
-    {
-        item.Quantity += delta;
-        if (item.Quantity <= 0) CartItems.Remove(item);
-    }
-
-    private void RemoveFromCart(CartItem item) => CartItems.Remove(item);
-    private int GetCartTotal() => CartItems.Sum(i => i.Price * i.Quantity);
-
-    public class CartItem
-    {
-        public int Id { get; set; }
-        public string Title { get; set; } = "";
-        public string Author { get; set; } = "";
-        public int Price { get; set; }
-        public int Quantity { get; set; }
-    }
-    private void CompletePurchase(MouseEventArgs args)
-    {
-        Navigation.NavigateTo("/payment-confirmation");
-    }
-}

MidrandBookshop/Components/Pages/Checkout.razor.cs

@@ -0,0 +1,54 @@
+using LiteCharms.Features.MidrandBooks.Payments;
+using LiteCharms.Features.MidrandBooks.Payments.Models;
+
+namespace MidrandBookshop.Components.Pages;
+
+public partial class Checkout(CartService cartService)
+{
+    [Inject]
+    private AuthenticationStateProvider AuthStateProvider { get; set; } = default!;
+
+    private LiteCharms.Features.MidrandBooks.Payments.Models.Cart ShoppingCart => cartService.ShoppingCart;
+
+    private AuthenticationState? AuthState { get; set; }
+    private System.Security.Claims.ClaimsPrincipal? User { get; set; }
+    private bool IsAuthenticated => User?.Identity?.IsAuthenticated ?? false;
+
+    private decimal ShippingCost = 0;
+    private bool IsSameAddress = true;
+
+    private decimal OrderTotalAmount => ShoppingCart.TotalAmount + ShoppingCart.TotalVat + ShippingCost;
+
+    protected override async Task OnInitializedAsync()
+    {
+        AuthState = await AuthStateProvider.GetAuthenticationStateAsync();
+        User = AuthState!.User;
+
+        Navigation.LocationChanged += OnLocationChanged;
+        cartService.OnCartChanged += CartService_OnCartChanged;
+    }
+
+    private async void CartService_OnCartChanged() => await InvokeAsync(StateHasChanged);
+
+    private void OnLocationChanged(object? sender, LocationChangedEventArgs e) => StateHasChanged();
+
+    private async void ChangeQuantity(CartItem item, int delta)
+    {
+        var peekQuantity = item.Quantity + delta;
+
+        if (peekQuantity < 1) return;
+
+        cartService.UpdateQuantity(item.Price!.Id, delta);
+
+        await cartService.SaveCartToStorageAsync();
+    }
+
+    private async void RemoveFromCart(CartItem item)
+    {
+        cartService.RemoveOneItem(item.Price!.Id);
+
+        await cartService.SaveCartToStorageAsync();
+    }
+
+    private void CompletePurchase(MouseEventArgs args) => Navigation.NavigateTo("/payment-confirmation");
+}

MidrandBookshop/Components/Pages/PaymentConfirmation.razor

@@ -3,8 +3,6 @@
 <div class="container py-5">
     <div class="row justify-content-center">
         <div class="col-md-8 col-lg-6 text-center">
-
-            <!-- Success Icon & Message -->
             <div class="mb-4">
                 <div class="d-inline-block p-4 rounded-circle bg-success bg-opacity-10 text-success mb-3">
                     <svg width="48" height="48" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
@@ -20,12 +18,11 @@
                 </div>
             </div>
 
-            <!-- Calls to Action -->
             <div class="d-grid gap-3 mt-5">
                 <a href="/" class="btn btn-dark btn-lg rounded-pill py-3">Continue Shopping</a>
                 <div class="row g-3">
                     <div class="col-6">
-                        <a href="/order-history" class="btn btn-outline-dark w-100 rounded-pill py-3">Order History</a>
+                        <a href="/account" class="btn btn-outline-dark w-100 rounded-pill py-3">Order History</a>
                     </div>
                     <div class="col-6">
                         <a href="/track-order" class="btn btn-outline-dark w-100 rounded-pill py-3">Track Order</a>
@@ -33,7 +30,6 @@
                 </div>
             </div>
 
-            <!-- Optional Trust Footer -->
             <p class="mt-5 text-muted small">You will receive a confirmation email shortly at <strong>user@email.com</strong>.</p>
         </div>
     </div>

MidrandBookshop/Components/Pages/ProductView.razor.cs

@@ -1,10 +1,10 @@
 using LiteCharms.Features;
 using LiteCharms.Features.MidrandBooks.Authors;
 using LiteCharms.Features.MidrandBooks.Authors.Models;
+using LiteCharms.Features.MidrandBooks.Payments;
+using LiteCharms.Features.MidrandBooks.Payments.Models;
 using LiteCharms.Features.MidrandBooks.Products;
 using LiteCharms.Features.MidrandBooks.Products.Models;
-using Microsoft.AspNetCore.Cors.Infrastructure;
-using MidrandBookshop.Services.ShoppingCart;
 
 namespace MidrandBookshop.Components.Pages;
 
@@ -17,7 +17,7 @@ public partial class ProductView : ComponentBase
     [Inject] private NavigationManager Navigation { get; set; } = default!;
     [Inject] private CartService CartService { get; set; } = default!;
 
-    protected Services.ShoppingCart.Models.Cart ShoppingCart => CartService?.ShoppingCart!;
+    protected Cart ShoppingCart => CartService?.ShoppingCart!;
 
     protected bool IsLoading { get; private set; } = true;
     protected Product? CurrentProduct { get; private set; }
@@ -32,9 +32,6 @@ public partial class ProductView : ComponentBase
 
     protected Author? CurrentAuthor { get; private set; }
 
-    private static Func<Services.ShoppingCart.Models.Cart, long, int> getCartItemQuantity = (shoppingCart, productPriceId) => 
-        shoppingCart.Items.FirstOrDefault(p => p.Price!.Id == productPriceId)?.Quantity ?? 1;
-
     protected override async Task OnParametersSetAsync()
     {
         try
@@ -97,7 +94,7 @@ public partial class ProductView : ComponentBase
         {
             CartService.UpdateQuantity(CurrentPrice!.Id, 1);
                         
-            Quantity = getCartItemQuantity(ShoppingCart, CurrentPrice.Id);
+            Quantity = CartService.GetCartItemQuantity(ShoppingCart, CurrentPrice.Id);
 
             await CartService.SaveCartToStorageAsync();
         }
@@ -108,7 +105,7 @@ public partial class ProductView : ComponentBase
         {
             CartService.UpdateQuantity(CurrentPrice!.Id, -1);
 
-            Quantity = getCartItemQuantity(ShoppingCart, CurrentPrice.Id);
+            Quantity = CartService.GetCartItemQuantity(ShoppingCart, CurrentPrice.Id);
 
             await CartService.SaveCartToStorageAsync();
         }
@@ -131,7 +128,7 @@ public partial class ProductView : ComponentBase
 
             CartService.AddItem(CurrentPrice, CurrentProduct, CurrentAuthor!);
 
-            Quantity = getCartItemQuantity(ShoppingCart, CurrentPrice.Id);
+            Quantity = CartService.GetCartItemQuantity(ShoppingCart, CurrentPrice.Id);
 
             await CartService.SaveCartToStorageAsync();
         }

MidrandBookshop/MidrandBookshop.csproj

@@ -18,13 +18,13 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="LiteCharms.Features" Version="1.101.0" />
+    <PackageReference Include="LiteCharms.Features" Version="1.102.0" />
   </ItemGroup>
 
   <!-- UI -->
   <ItemGroup>
     <PackageReference Include="ANM.Blazored.Toast" Version="0.1.1" />
-    <PackageReference Include="LiteCharms.Features.MidrandBooks" Version="1.101.0" />
+    <PackageReference Include="LiteCharms.Features.MidrandBooks" Version="1.102.0" />
     
     <!-- Global Usings -->
     <Using Include="Blazored.Toast.Services" />

MidrandBookshop/Program.cs

@@ -3,7 +3,6 @@ using LiteCharms.Features.Mediator;
 using LiteCharms.Features.MidrandBooks.Extensions;
 using Microsoft.AspNetCore.HttpOverrides;
 using MidrandBookshop.Components;
-using MidrandBookshop.Services.ShoppingCart;
 using static LiteCharms.Features.Extensions.Quartz;
 
 var builder = WebApplication.CreateBuilder(args);
@@ -27,7 +26,6 @@ builder.Services.AddEmailServiceBus();
 
 builder.Services.AddHttpClient();
 builder.Services.AddShopServices();
-builder.Services.AddScoped<CartService>();
 builder.Services.AddHashServices(builder.Configuration);
 builder.Services.AddMidrandShopDatabase(builder.Configuration);
 

MidrandBookshop/Services/ShoppingCart/CartService.cs

@@ -1,150 +0,0 @@
-using LiteCharms.Features.Browser;
-using LiteCharms.Features.Hasher;
-using LiteCharms.Features.MidrandBooks.Authors.Models;
-using LiteCharms.Features.MidrandBooks.Products.Models;
-using MidrandBookshop.Services.ShoppingCart.Models;
-
-namespace MidrandBookshop.Services.ShoppingCart;
-
-public sealed class CartService(LocalStorageService localStorage)
-{
-    private readonly string CartStorageKey = HashService.ToMd5Hash(nameof(Cart)).Value;
-
-    public Cart ShoppingCart { get; private set; } = new();
-
-    public event Action? OnCartChanged;
-
-    public Cart GetCart() => ShoppingCart;
-
-    public void NotifyStateChanged() => OnCartChanged?.Invoke();
-
-    public async Task LoadCartFromStorageAsync()
-    {
-        var loadResult = await localStorage.GetAsync<Cart>(CartStorageKey);
-
-        if (loadResult.IsFailed) await localStorage.SaveAsync(CartStorageKey, ShoppingCart);
-
-        if (loadResult.IsSuccess) ShoppingCart = loadResult.Value;
-
-        NotifyStateChanged();
-    }
-
-    public async Task SaveCartToStorageAsync() => await localStorage.SaveAsync(CartStorageKey, ShoppingCart);
-
-    public void AddItem(ProductPrice productPrice, Product product, Author author)
-    {
-        var itemExists = false;
-
-        for (var i = 0; i < ShoppingCart.Items.Count; i++)
-        {
-            if (ShoppingCart.Items[i].Price!.Id == productPrice.Id)
-            {
-                ShoppingCart.Items[i].Quantity++;
-                ShoppingCart.Items[i].Amount += productPrice.Amount;
-
-                itemExists = true;
-
-                break;
-            }
-        }
-
-        if (!itemExists)
-            ShoppingCart.Items.Add(new CartItem
-            {
-                Product = product,
-                Author = author,
-                Price = productPrice,
-                Amount = productPrice.Amount,
-                Quantity = 1,
-            });
-
-        CalculateTotalPrice();
-        NotifyStateChanged();
-    }
-
-    public void UpdateQuantity(long productPriceId, int delta)
-    {
-        for (var i = 0; i < ShoppingCart.Items.Count; i++)
-        {
-            if (ShoppingCart.Items[i].Price!.Id == productPriceId)
-            {
-                var oldQuantity = ShoppingCart.Items[i].Quantity;
-                var pricePerUnit = ShoppingCart.Items[i].Price!.Amount;
-
-                ShoppingCart.Items[i].Quantity += delta;
-                ShoppingCart.Items[i].Amount = pricePerUnit * ShoppingCart.Items[i].Quantity;
-                break;
-            }
-        }
-
-        CalculateTotalPrice();
-        NotifyStateChanged();
-    }
-
-    public void RemoveOneItem(long productPriceId)
-    {
-        for (var i = 0; i < ShoppingCart.Items.Count; i++)
-        {
-            if (ShoppingCart.Items[i].Price!.Id == productPriceId)
-            {
-                if (ShoppingCart.Items[i].Quantity <= 1)
-                {
-                    ShoppingCart.Items.Remove(ShoppingCart.Items[i]);
-
-                    break;
-                }
-                else
-                {
-                    ShoppingCart.Items[i].Quantity--;
-                    ShoppingCart.Items[i].Amount -= ShoppingCart.Items[i].Price!.Amount;
-                }
-
-                break;
-            }
-        }
-
-        CalculateTotalPrice();
-        NotifyStateChanged();
-    }
-
-    public void RemoveAllSameItem(long productPriceId)
-    {
-        if (ShoppingCart.Items.Count == 0) return;
-
-        var item = ShoppingCart.Items.FirstOrDefault(i => i.Price?.Id == productPriceId);
-
-        if (item is not null) ShoppingCart.Items.Remove(item);
-
-        CalculateTotalPrice();
-        NotifyStateChanged();
-    }
-
-    public void Clear()
-    {
-        if(ShoppingCart.CustomerId is not null || ShoppingCart.OrderId is not null)
-        {
-            ShoppingCart.TotalPrice = 0;
-            ShoppingCart.TotalVat = 0;
-            ShoppingCart.Items.Clear();
-
-            return;
-        }
-
-        ShoppingCart = new Cart();
-
-        NotifyStateChanged();
-    }
-
-    public decimal CalculateTotalPrice()
-    {
-        if (ShoppingCart.Items.Count == 0) return 0;
-
-        var gross = ShoppingCart.Items.Sum(i => i.Amount);
-
-        if (!ShoppingCart.IsVatInclusive) ShoppingCart.TotalVat = gross * ShoppingCart.VatRate;
-
-        ShoppingCart.TotalPrice = gross + ShoppingCart.TotalVat;
-
-        return ShoppingCart.TotalPrice;
-    }
-}

MidrandBookshop/Services/ShoppingCart/Models/Cart.cs

@@ -1,18 +0,0 @@
-namespace MidrandBookshop.Services.ShoppingCart.Models;
-
-public sealed class Cart
-{
-    public long? CustomerId { get; set; }
-
-    public long? OrderId { get; set; }
-
-    public decimal TotalPrice { get; set; }
-
-    public decimal TotalVat { get; set; }
-
-    public decimal VatRate { get; set; } = 0.15m;
-
-    public bool IsVatInclusive { get; set; } = true;
-
-    public IList<CartItem> Items { get; set; } = [];
-}

MidrandBookshop/Services/ShoppingCart/Models/CartItem.cs

@@ -1,17 +0,0 @@
-using LiteCharms.Features.MidrandBooks.Authors.Models;
-using LiteCharms.Features.MidrandBooks.Products.Models;
-
-namespace MidrandBookshop.Services.ShoppingCart.Models;
-
-public sealed class CartItem
-{
-    public Author? Author { get; set; }
-
-    public Product? Product { get; set; }
-
-    public ProductPrice? Price { get; set; }
-
-    public int Quantity { get; set; }
-
-    public decimal Amount { get; set; }
-}