feat: add format=jpgEnc support (filename from rpt_CertificatesChartsAlias SP)

CertReports.Syncfusion/Controllers/ChartController.cs

@@ -112,8 +112,10 @@ public class ChartController : ControllerBase
                 });
             }
 
-            bool isJpeg = format.Equals("jpg",  StringComparison.OrdinalIgnoreCase)
+            bool isJpegEnc = format.Equals("jpgEnc", StringComparison.OrdinalIgnoreCase);
-                       || format.Equals("jpeg", StringComparison.OrdinalIgnoreCase);
+            bool isJpeg    = isJpegEnc
+                          || format.Equals("jpg",  StringComparison.OrdinalIgnoreCase)
+                          || format.Equals("jpeg", StringComparison.OrdinalIgnoreCase);
 
             byte[] imgBytes = SkiaChartRendererV2.RenderToPng(chartData, width, height, jpeg: isJpeg);
 
@@ -124,6 +126,15 @@ public class ChartController : ControllerBase
                 return File(pdfBytes, "application/pdf");
             }
 
+            if (isJpegEnc)
+            {
+                // Nome file codificato da SP rpt_CertificatesChartsAlias (come vecchio jpgEnc DevExpress)
+                string? alias = await _chartDataServiceV2.GetChartAliasAsync(isin);
+                string fileName = string.IsNullOrEmpty(alias) ? $"chart_v2_{isin}" : alias;
+                Response.Headers.Append("Content-Disposition", $"inline; filename={fileName}.jpg");
+                return File(imgBytes, "image/jpeg");
+            }
+
             if (isJpeg)
             {
                 Response.Headers.Append("Content-Disposition", $"inline; filename=chart_v2_{isin}.jpg");

CertReports.Syncfusion/Services/Implementations/ChartDataServiceV2.cs

@@ -14,6 +14,12 @@ namespace CertReports.Syncfusion.Services.Implementations;
 public interface IChartDataServiceV2
 {
     Task<ChartDataV2?> GetChartDataV2Async(string isin);
+
+    /// <summary>
+    /// Ritorna l'AliasID codificato per il grafico (SP rpt_CertificatesChartsAlias).
+    /// Usato dal formato jpgEnc per impostare il nome file nella risposta HTTP.
+    /// </summary>
+    Task<string?> GetChartAliasAsync(string isin);
 }
 
 public class ChartDataServiceV2 : IChartDataServiceV2
@@ -104,6 +110,19 @@ public class ChartDataServiceV2 : IChartDataServiceV2
         return result;
     }
 
+    public async Task<string?> GetChartAliasAsync(string isin)
+    {
+        await using var conn = new SqlConnection(_connectionString);
+        await conn.OpenAsync();
+
+        await using var cmd = new SqlCommand("rpt_CertificatesChartsAlias", conn)
+            { CommandType = CommandType.StoredProcedure };
+        cmd.Parameters.AddWithValue("@isin", isin);
+
+        var result = await cmd.ExecuteScalarAsync();
+        return result == null || result == DBNull.Value ? null : result.ToString();
+    }
+
     /// <summary>
     /// Legge un campo numerico come decimal indipendentemente dal tipo SQL
     /// (decimal, float, real, int). Necessario perché cedlab_Chart_UL1 ritorna