Implement fast product search by sku

src/Services/RhDatabaseClient.cs

@@ -1,6 +1,7 @@
 using Newtonsoft.Json;
 using RhSolutions.AddIn;
 using RhSolutions.Models;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Net.Http;
@@ -14,22 +15,48 @@ namespace RhSolutions.Services
 
         public static async Task<object> GetProduct(string line)
         {
-            string request = @"https://rh.cebotari.ru/api/search?query=" + line;
+            string request = string.Empty;
 
-            string response = await httpClient.GetStringAsync(request);
-
-            var products = JsonConvert.DeserializeObject<IEnumerable<Product>>(response);
-
-            var product = products.FirstOrDefault();
-
-            if (product == null)
+            if (line.IsRehauSku())
             {
-                return null;
+                request = @"https://rh.cebotari.ru/api/products/" + line;
             }
+
             else
             {
-                return $"{product.ProductSku} {product.Name}";
+                request = @"https://rh.cebotari.ru/api/search?query=" + line;
             }
+
+            var response = await httpClient.GetAsync(request);
+
+            try
+            {
+                response.EnsureSuccessStatusCode(); 
+                string json = await response.Content.ReadAsStringAsync();
+                var product = JsonConvert.DeserializeObject<IEnumerable<Product>>(json)
+                    .FirstOrDefault();
+
+                if (product == null)
+                {
+                    return null;
+                }
+                else
+                {
+                    if (line.IsRehauSku())
+                    {
+                        return product.Name;
+                    }
+                    else
+                    {
+                        return $"{product.ProductSku} {product.Name}";
+                    }
+                }
+            }
+            catch
+            {
+                return $"Ошибка сервера {response.StatusCode}";
+            }
+
         }
     }
 }