Refactor InnerLengthChatMessage in ILengthFunctions

src/Encamina.Enmarcha.SemanticKernel.Abstractions/ILengthFunctions.cs

@@ -40,7 +40,7 @@ public interface ILengthFunctions : AI.Abstractions.ILengthFunctions
     /// <param name="lengthFunction">A function to calculate the length of a string.</param>
     /// <returns>The total length for the chat message.</returns>
     public static int LengthChatMessage(string content, AuthorRole authorRole, Func<string, int> lengthFunction)
-        => InnerLengthChatMessage(content, null, authorRole, (s, _) => lengthFunction(s));
+        => InnerLengthChatMessage(content, authorRole, lengthFunction);
 
     /// <summary>
     /// Calculates the length of a chat message with the specified content, encoding and author role, using a provided length function with encoding.
@@ -51,20 +51,19 @@ public static int LengthChatMessage(string content, AuthorRole authorRole, Func<
     /// <param name="lengthFunctionWithEncoding">A function to calculate the length of a string with encoding.</param>
     /// <returns>The total length for the chat message.</returns>
     public static int LengthChatMessageWithEncoding(string content, string encoding, AuthorRole authorRole, Func<string, string, int> lengthFunctionWithEncoding)
-        => InnerLengthChatMessage(content, encoding, authorRole, lengthFunctionWithEncoding);
+        => InnerLengthChatMessage(content, authorRole, s => lengthFunctionWithEncoding(encoding, s));
 
     /// <summary>
     /// Internal method to calculate the length of a chat message with the specified content, encoding and author role, using a provided length function with encoding.
     /// </summary>
     /// <param name="content">The content of the chat message.</param>
-    /// <param name="encoding">The name of the GptEncoding.</param>
     /// <param name="authorRole">The <see cref="AuthorRole"/> of the message.</param>
     /// <param name="lengthFunction">A function to calculate the length of a string.</param>
     /// <returns>The total length for the chat message.</returns>
-    private static int InnerLengthChatMessage(string content, string encoding, AuthorRole authorRole, Func<string, string, int> lengthFunction)
+    private static int InnerLengthChatMessage(string content, AuthorRole authorRole, Func<string, int> lengthFunction)
     {
-        var tokenCount = authorRole == AuthorRole.System ? lengthFunction(encoding, "\n") : 0;
-        return tokenCount + lengthFunction(encoding, $"role:{authorRole.Label}") + lengthFunction(encoding, $"content:{content}");
+        var tokenCount = authorRole == AuthorRole.System ? lengthFunction("\n") : 0;
+        return tokenCount + lengthFunction($"role:{authorRole.Label}") + lengthFunction($"content:{content}");
     }
 
     /// <summary>