#94: Saving the file type of cover art, but there is still some work to do

The filename of cover art is hard coded to have the png extension. Need to correct this

Controllers/Utilities/MetadataRetriever.cs

@@ -68,6 +68,33 @@ public class MetadataRetriever
         _logger.Info($"Year: {song.Year}");
         _logger.Info($"Duration: {song.Duration}");
     }
+
+    public string CoverArtFileExtensionType(CoverArt cover)
+    {
+        Console.WriteLine("Retrieving CoverArt file extension type");
+
+        using (var fileStream = System.IO.File.OpenRead(cover.ImagePath()))
+        {
+            var isRecognizableType = FileTypeChecker.FileTypeValidator.IsTypeRecognizable(fileStream);
+
+            if (!isRecognizableType)
+            {
+                return string.Empty;
+            }
+
+
+            var fileType = FileTypeChecker.FileTypeValidator.GetFileType(fileStream);
+            // Console.WriteLine("Type Name: {0}", fileType.Name);
+            // Console.WriteLine("Type Extension: {0}", fileType.Extension);
+            // Console.WriteLine("Is Image?: {0}", fileStream.IsImage());
+            // Console.WriteLine("Is Bitmap?: {0}", fileStream.Is<Bitmap>());
+            //
+            Console.WriteLine($"Filetype: {fileType}");
+
+            return fileType.Extension;
+        }
+    }
+
     public Song RetrieveMetaData(string filePath)
     {
         Song song = new Song();
@@ -162,7 +189,7 @@ public class MetadataRetriever
         var pics = tag.Tag.Pictures;
         Array.Resize(ref pics, 1);
 
-        pics[0] = new Picture(coverArt.ImagePath)
+        pics[0] = new Picture(coverArt.ImagePath())
         {
             Description = "Cover Art"
         };