Testing

Shared/Models/Stateless/Methods/MetaBase.cs

@@ -1,4 +1,5 @@
 using System.Collections.ObjectModel;
+using System.Globalization;
 
 namespace View_by_Distance.Shared.Models.Stateless.Methods;
 
@@ -80,4 +81,55 @@ internal static class MetaBase
         return results.AsReadOnly();
     }
 
+    internal static int? GetWidth(ExifDirectoryBase[]? exifBaseDirectories)
+    {
+        int? result = null;
+        // public const int TagImageWidth = 256;
+        if (exifBaseDirectories is not null)
+        {
+            foreach (ExifDirectoryBase exifDirectoryBase in exifBaseDirectories)
+            {
+                result = exifDirectoryBase?.ImageWidthValue;
+                if (result is not null)
+                    break;
+            }
+        }
+        return result;
+    }
+
+    internal static int? GetHeight(ExifDirectoryBase[]? exifBaseDirectories)
+    {
+        int? result = null;
+        // public const int TagImageHeight = 257;
+        if (exifBaseDirectories is not null)
+        {
+            foreach (ExifDirectoryBase exifDirectoryBase in exifBaseDirectories)
+            {
+                result = exifDirectoryBase?.ImageHeightValue;
+                if (result is not null)
+                    break;
+            }
+        }
+        return result;
+    }
+
+#pragma warning disable CA1416
+
+    internal static DateTime? GetDateTime(string dateTimeFormat, string? value)
+    {
+        DateTime? result;
+        string alternateFormat = "ddd MMM dd HH:mm:ss yyyy";
+        if (value is not null && DateTime.TryParse(value, out DateTime dateTime))
+            result = dateTime;
+        else if (value is not null && value.Length == dateTimeFormat.Length && DateTime.TryParseExact(value, dateTimeFormat, CultureInfo.InvariantCulture, DateTimeStyles.None, out dateTime))
+            result = dateTime;
+        else if (value is not null && value.Length == alternateFormat.Length && DateTime.TryParseExact(value, alternateFormat, CultureInfo.InvariantCulture, DateTimeStyles.None, out dateTime))
+            result = dateTime;
+        else
+            result = null;
+        return result;
+    }
+
+#pragma warning restore CA1416
+
 }