Handle HttpClient errors

RhSolutions.AddIn/Services/YandexOcrClient.cs

@@ -2,6 +2,7 @@ using System.Net.Http;
 using System.Net.Http.Headers;
 using System.Text;
 using System.Threading.Tasks;
+using System.Windows.Forms;
 using Newtonsoft.Json;
 
 namespace RhSolutions.Services;
@@ -36,39 +37,46 @@ public class YandexOcrClient : IOcrClient
 		_httpClient.DefaultRequestHeaders.Add("x-data-logging-enable", "true");
 
 		using HttpResponseMessage response = await _httpClient.PostAsync("recognizeText", jsonContent);
-		response.EnsureSuccessStatusCode();
+		if (response.IsSuccessStatusCode)
-
-		string jsonResponse = await response.Content.ReadAsStringAsync();
-		OcrResponse deserialized = JsonConvert.DeserializeObject<OcrResponse>(jsonResponse);
-
-		if (deserialized != null)
 		{
-			var tables = deserialized?.Result?.TextAnnotation?.Tables ?? Enumerable.Empty<Table>();
+			string jsonResponse = await response.Content.ReadAsStringAsync();
-			if (tables.Any())
+			OcrResponse deserialized = JsonConvert.DeserializeObject<OcrResponse>(jsonResponse);
+
+			if (deserialized != null)
 			{
-				List<object[,]> result = new();
+				var tables = deserialized?.Result?.TextAnnotation?.Tables ?? Enumerable.Empty<Table>();
-				foreach (var table in tables)
+				if (tables.Any())
 				{
-					if (table.Cells == null || table.Cells.Count == 0) 
+					List<object[,]> result = new();
+					foreach (var table in tables)
 					{
-						continue;
+						if (table.Cells == null || table.Cells.Count == 0)
+						{
+							continue;
+						}
+						int columnCount = int.Parse(table.ColumnCount);
+						int rowCount = int.Parse(table.RowCount);
+						object[,] cells = new object[rowCount, columnCount];
+
+						foreach (Cell cell in table.Cells)
+						{
+							int rowIndex = int.Parse(cell.RowIndex);
+							int columnIndex = int.Parse(cell.ColumnIndex);
+							cells[rowIndex, columnIndex] = double.TryParse(cell.Text, out double v) ?
+								v : cell.Text ?? string.Empty;
+						}
+						result.Add(cells);
 					}
-					int columnCount = int.Parse(table.ColumnCount);
+					return result;
-					int rowCount = int.Parse(table.RowCount);
-					object[,] cells = new object[rowCount, columnCount];
-					
-					foreach (Cell cell in table.Cells)
-					{
-						int rowIndex = int.Parse(cell.RowIndex);
-						int columnIndex = int.Parse(cell.ColumnIndex);
-						cells[rowIndex, columnIndex] = double.TryParse(cell.Text, out double v) ?
-							v : cell.Text ?? string.Empty;
-					}
-					result.Add(cells);
 				}
-				return result;
 			}
 		}
+		else
+		{
+			string content = await response.Content.ReadAsStringAsync();
+			MessageBox.Show($"{response.StatusCode}: {content}", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+		}
+
 		return Enumerable.Empty<object[,]>();
 	}
 }