Discord.Net 1.0 Debug Command Handler

handler.cs

StringBuilder builder = new StringBuilder();
var searchResult = _commands.Search(msg, argPos);
if (searchResult.IsSuccess)
{
    foreach (var cmd in searchResult.Commands)
    {
        builder.Append($"**{cmd.Text}({string.Join(",", cmd.Parameters.Select(x => GetParamName(x)))})** ");
        var preconditionResult = await cmd.CheckPreconditions(msg);
        var parseResult = await cmd.Parse(msg, searchResult, preconditionResult);
        if (parseResult.IsSuccess)
            builder.AppendLine("(Success)");
        else
        {
            builder.AppendLine("(Failed)");
            builder.AppendLine($"{parseResult.Error}: {parseResult.ErrorReason}");
        }
                                
        if (parseResult.IsSuccess || parseResult.Error == CommandError.MultipleMatches)
        {
            var argList = parseResult.ArgValues.ToArray();
            var newArgList = new object[argList.Length];
            for (int i = 0; i < argList.Length; i++)
            {
                builder.AppendLine($"  {cmd.Parameters[i].Name} =");
                var values = argList[i].Values.ToArray();
                int bestIndex = values.Select((x, y) => new { Index = y, Score = x.Score }).OrderByDescending(x => x.Score).First().Index;
                for (int j = 0; j < values.Length; j++)
                {
                    builder.Append("    ");
                    if (j == bestIndex) builder.Append("**");
                    builder.AppendLine($"{values[j].Value?.ToString() ?? "null"} [{values[j].Score:0.00}]");
                    if (j == bestIndex) builder.Append("**");
                }
                newArgList[i] = values[bestIndex];
            }
            var paramList = parseResult.ParamValues.ToArray();
            var newParamList = new object[paramList.Length];
            for (int i = 0; i < paramList.Length; i++)
            {
                builder.AppendLine($"  {cmd.Parameters[i].Name} =");
                var values = paramList[i].Values.ToArray();
                int bestIndex = values.Select((x, y) => new { Index = y, Score = x.Score }).OrderByDescending(x => x.Score).First().Index;
                for (int j = 0; j < values.Length; j++)
                {
                    builder.Append("    ");
                    if (j == bestIndex) builder.Append("**");
                    builder.AppendLine($"{values[j].Value?.ToString() ?? "null"} [{values[j].Score:0.00}]");
                    if (j == bestIndex) builder.Append("**");
                }
                newParamList[i] = values[bestIndex];
            }
        }
        builder.AppendLine();
    }
}
else
    builder.AppendLine($"No matching commands");
await msg.Channel.SendMessageAsync(builder.ToString());

//////////

private static string GetParamName(CommandParameter p)
{
    return $"{(p.IsMultiple ? "params " : "")}{p.ElementType.Name}{(p.IsOptional ? $" = {p.DefaultValue}" : "")}";
}