Update product service and detail view with gallery support

src/FrontOffice.Main/Utilities/ProductService.cs

@@ -11,18 +11,20 @@ public record Product(
     long Price,
     int Discount = 0,
     int Rate = 0,
-    int RemainingCount = 0);
+    int RemainingCount = 0)
+{
+    public IReadOnlyList<ProductGalleryImage> Gallery { get; init; } = Array.Empty<ProductGalleryImage>();
+}
+
+public record ProductGalleryImage(
+    long ProductGalleryId,
+    long ProductImageId,
+    string Title,
+    string ImageUrl,
+    string ThumbnailUrl);
 
 public class ProductService
 {
-    private static readonly List<Product> _seed = new()
-    {
-        new(1, "ماسک پزشکی سه‌لایه", "ماسک سه‌لایه با فیلتراسیون بالا مناسب برای محیط‌های عمومی.", "/images/store/mask.jpg", 49000),
-        new(2, "دستکش لاتکس", "دستکش لاتکس مناسب معاینات پزشکی، بدون پودر.", "/images/store/gloves.jpg", 89000),
-        new(3, "محلول ضدعفونی کننده", "محلول ضدعفونی بر پایه الکل ۷۰٪ مناسب دست و سطوح.", "/images/store/sanitizer.jpg", 69000),
-        new(4, "تب‌سنج دیجیتال", "تب‌سنج دیجیتال با دقت بالا و نمایشگر LCD.", "/images/store/thermometer.jpg", 299000),
-        new(5, "فشارسنج دیجیتال", "فشارسنج بازویی دیجیتال با حافظه داخلی.", "/images/store/bp-monitor.jpg", 1259000)
-    };
 
     private readonly ConcurrentDictionary<long, Product> _cache = new();
     private readonly ProductsContract.ProductsContractClient _client;
@@ -30,7 +32,7 @@ public class ProductService
     public ProductService(ProductsContract.ProductsContractClient client)
     {
         _client = client;
-        foreach (var p in _seed) _cache[p.Id] = p;
+    
     }
 
     public async Task<List<Product>> GetProductsAsync(string? query = null)
@@ -67,10 +69,13 @@ public class ProductService
 
         try
         {
-            // No single-get endpoint exposed: fetch list and pick
-            var resp = await _client.GetAllProductsByFilterAsync(new GetAllProductsByFilterRequest { Filter = new GetAllProductsByFilterFilter() });
-            var list = MapAndCache(resp.Models);
-            return list.FirstOrDefault(x => x.Id == id);
+            var resp = await _client.GetProductsAsync(new GetProductsRequest { Id = id });
+            if (resp == null)
+            {
+                return null;
+            }
+
+            return MapAndCache(resp);
         }
         catch
         {
@@ -99,4 +104,34 @@ public class ProductService
         }
         return list;
     }
+
+    private Product MapAndCache(GetProductsResponse model)
+    {
+        var gallery = model.Gallery
+            .Select(item => new ProductGalleryImage(
+                ProductGalleryId: item.ProductGalleryId,
+                ProductImageId: item.ProductImageId,
+                Title: item.Title ?? string.Empty,
+                ImageUrl: BuildUrl(item.ImagePath),
+                ThumbnailUrl: BuildUrl(item.ImageThumbnailPath)))
+            .ToList();
+
+        var product = new Product(
+            Id: model.Id,
+            Title: model.Title ?? string.Empty,
+            Description: model.Description ?? string.Empty,
+            ImageUrl: BuildUrl(model.ImagePath),
+            Price: model.Price,
+            Discount: model.Discount,
+            Rate: model.Rate,
+            RemainingCount: model.RemainingCount)
+        {
+            Gallery = gallery
+        };
+
+        _cache[product.Id] = product;
+        return product;
+    }
+
+    private static string BuildUrl(string? path) => string.IsNullOrWhiteSpace(path) ? string.Empty : UrlUtility.DownloadUrl + path;
 }