Fixed some code-issues in novation-library

RGB.NET.Devices.Novation/Helper/EnumExtension.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Reflection;
+using RGB.NET.Devices.Novation.Attributes;
+
+namespace RGB.NET.Devices.Novation
+{
+    /// <summary>
+    /// Offers some extensions and helper-methods for enum related things.
+    /// </summary>
+    internal static class EnumExtension
+    {
+        /// <summary>
+        /// Gets the value of the <see cref="DeviceIdAttribute"/>.
+        /// </summary>
+        /// <param name="source">The enum value to get the description from.</param>
+        /// <returns>The value of the <see cref="DeviceIdAttribute"/> of the source.</returns>
+        internal static string GetDeviceId(this Enum source) => source.GetAttribute<DeviceIdAttribute>()?.Id;
+
+        /// <summary>
+        /// Gets the attribute of type T.
+        /// </summary>
+        /// <param name="source">The enum value to get the attribute from</param>
+        /// <typeparam name="T">The generic attribute type</typeparam>
+        /// <returns>The <see cref="Attribute"/>.</returns>
+        private static T GetAttribute<T>(this Enum source)
+            where T : Attribute
+        {
+            FieldInfo fi = source.GetType().GetField(source.ToString());
+            T[] attributes = (T[])fi.GetCustomAttributes(typeof(T), false);
+            return attributes.Length > 0 ? attributes[0] : null;
+        }
+    }
+}