Fix downloadFile

salesbook.Maui/Core/Services/AttachedService.cs

@@ -1,9 +1,10 @@
-using salesbook.Shared.Core.Dto;
+using salesbook.Maui.Core.Interface;
+using salesbook.Shared.Core.Dto;
 using salesbook.Shared.Core.Interface;
 
 namespace salesbook.Maui.Core.Services;
 
-public class AttachedService : IAttachedService
+public class AttachedService(IFilePreviewService filePreviewService) : IAttachedService
 {
     public async Task<AttachedDTO?> SelectImageFromCamera()
     {
@@ -95,48 +96,34 @@ public class AttachedService : IAttachedService
         };
     }
 
-    private static async Task<string?> SaveToTempStorage(Stream file, string fileName)
+    public async Task<string> SaveToTempStorage(Stream file, string fileName, CancellationToken ct = default)
     {
-        var cacheDirectory = FileSystem.CacheDirectory;
-        var targetDirectory = Path.Combine(cacheDirectory, "file");
+        ArgumentNullException.ThrowIfNull(file);
 
-        if (!Directory.Exists(targetDirectory)) Directory.CreateDirectory(targetDirectory);
+        if (file.CanSeek)
+            file.Position = 0;
 
-        var tempFilePath = Path.Combine(targetDirectory, fileName + ".temp");
-        var filePath = Path.Combine(targetDirectory, fileName);
+        fileName = Path.GetFileName(fileName);
 
-        if (File.Exists(filePath)) return filePath;
+        var dir = FileSystem.CacheDirectory;
+        var filePath = Path.Combine(dir, fileName);
 
-        try
-        {
-            await using var fileStream =
-                new FileStream(tempFilePath, FileMode.Create, FileAccess.Write, FileShare.None);
-            await file.CopyToAsync(fileStream);
-
-            File.Move(tempFilePath, filePath);
-        }
-        catch (Exception e)
-        {
-            Console.WriteLine($"Errore durante il salvataggio dello stream: {e.Message}");
-            SentrySdk.CaptureException(e);
-            return null;
-        }
-        finally
-        {
-            if (File.Exists(tempFilePath)) File.Delete(tempFilePath);
-        }
+        await using var fileStream = File.Create(filePath);
+        await file.CopyToAsync(fileStream, ct);
 
         return filePath;
     }
 
-    public async Task OpenFile(Stream file, string fileName)
+    public Task OpenFile(string fileName, string filePath)
     {
-        var filePath = await SaveToTempStorage(file, fileName);
-
-        if (filePath is null) return;
-        await Launcher.OpenAsync(new OpenFileRequest
+#if IOS
+        return filePreviewService.Preview(fileName, filePath);
+#else
+        return Launcher.OpenAsync(new OpenFileRequest
         {
+            Title = "Apri file",
             File = new ReadOnlyFile(filePath)
         });
+#endif
     }
 }