public async Task <IActionResult> DetectLanguage([FromBody] string fileName)
        {
            // путь к папке Files
            var file = System.IO.Path.Combine(_appEnvironment.WebRootPath, "Files", fileName);

            if (!System.IO.File.Exists(file))
            {
                // Create a file to write to.
                //string createText = "File not found";
                return(NotFound());
            }
            string text = System.IO.File.ReadAllText(file);

            if (text == null)
            {
                // Create a file to write to.
                //string createText = "File not found";
                return(NotFound());
            }

            var algoritm = new DetectLanguage <AnswerModel <string> >();
            Analytic <AnswerModel <string> > _analytic = new Analytic <AnswerModel <string> >();

            var result = _analytic.Execute(algoritm, text);

            return(Ok(result));
        }