feat: add ?save=true param to chart v2 — saves JPEG to disk (ChartSettings paths in appsettings)

CertReports.Syncfusion/Controllers/ChartController.cs

@@ -22,15 +22,18 @@ public class ChartController : ControllerBase
     private readonly IChartDataService _chartDataService;
     private readonly IChartDataServiceV2 _chartDataServiceV2;
     private readonly ILogger<ChartController> _logger;
+    private readonly IConfiguration _configuration;
 
     public ChartController(
         IChartDataService chartDataService,
         IChartDataServiceV2 chartDataServiceV2,
-        ILogger<ChartController> logger)
+        ILogger<ChartController> logger,
+        IConfiguration configuration)
     {
         _chartDataService = chartDataService;
         _chartDataServiceV2 = chartDataServiceV2;
         _logger = logger;
+        _configuration = configuration;
     }
 
     [HttpGet("{isin}")]
@@ -91,7 +94,8 @@ public class ChartController : ControllerBase
         string isin,
         [FromQuery] int width = 1100,
         [FromQuery] int height = 700,
-        [FromQuery] string format = "png")
+        [FromQuery] string format = "png",
+        [FromQuery] bool save = false)
     {
         if (string.IsNullOrWhiteSpace(isin))
             return BadRequest("ISIN non valido.");
@@ -117,8 +121,17 @@ public class ChartController : ControllerBase
                           || format.Equals("jpg",  StringComparison.OrdinalIgnoreCase)
                           || format.Equals("jpeg", StringComparison.OrdinalIgnoreCase);
 
+            // Alias codificato (necessario sia per jpgEnc che per il salvataggio su disco)
+            string? alias = isJpegEnc ? await _chartDataServiceV2.GetChartAliasAsync(isin) : null;
+
             byte[] imgBytes = SkiaChartRendererV2.RenderToPng(chartData, width, height, jpeg: isJpeg);
 
+            // ── Salvataggio su disco (solo se ?save=true) ─────────────────
+            if (save && isJpeg)
+            {
+                await SaveChartToDiskAsync(isin, alias, imgBytes, isJpegEnc);
+            }
+
             if (format.Equals("pdf", StringComparison.OrdinalIgnoreCase))
             {
                 byte[] pdfBytes = WrapPngInPdf(imgBytes);
@@ -128,8 +141,6 @@ public class ChartController : ControllerBase
 
             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");
@@ -151,6 +162,39 @@ public class ChartController : ControllerBase
         }
     }
 
+    /// <summary>
+    /// Salva il JPEG su disco nei percorsi configurati in appsettings.json (ChartSettings).
+    /// format=jpg/jpeg → SavePath/{isin}.jpg
+    /// format=jpgEnc   → SavePathEnc/{alias}.jpg
+    /// Errori di I/O vengono loggati senza interrompere la risposta HTTP.
+    /// </summary>
+    private async Task SaveChartToDiskAsync(string isin, string? alias, byte[] imgBytes, bool isEnc)
+    {
+        try
+        {
+            string key      = isEnc ? "ChartSettings:SavePathEnc" : "ChartSettings:SavePath";
+            string? folder  = _configuration[key];
+            if (string.IsNullOrEmpty(folder))
+            {
+                _logger.LogWarning("Salvataggio grafico saltato: chiave {Key} non configurata in appsettings", key);
+                return;
+            }
+
+            Directory.CreateDirectory(folder);
+
+            string fileName = isEnc && !string.IsNullOrEmpty(alias) ? $"{alias}.jpg" : $"{isin}.jpg";
+            string fullPath = Path.Combine(folder, fileName);
+
+            await System.IO.File.WriteAllBytesAsync(fullPath, imgBytes);
+            _logger.LogInformation("Grafico salvato su disco: {Path}", fullPath);
+        }
+        catch (Exception ex)
+        {
+            _logger.LogWarning(ex, "Impossibile salvare il grafico su disco per {Isin}", isin);
+        }
+    }
+
+
     private static byte[] WrapPngInPdf(byte[] pngBytes)
     {
         var doc = new PdfDocument();

CertReports.Syncfusion/appsettings.json

@@ -29,5 +29,9 @@
       }
     }
   },
+  "ChartSettings": {
+    "SavePath":    "C:\\inetpub\\wwwroot\\smart-roots.net\\Images\\Charts",
+    "SavePathEnc": "C:\\inetpub\\wwwroot\\smart-roots.net\\Images\\Charts\\encoded"
+  },
   "AllowedHosts": "*"
 }