using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading.Tasks;
using Tango.CSV;
using Tango.DispenserAnalyzer.UI.Models;
using System.Windows.Controls;
using System.Windows.Media;
using System.IO;
using System.Text.RegularExpressions;

namespace Tango.DispenserAnalyzer.UI.Analysis
{
    public class AnalysisService
    {
        public static dynamic GetAnalyzer(String fileName)
        {
            string filename = Path.GetFileNameWithoutExtension(fileName);
            
            var analyzerTypes = typeof(AnalysisService).Assembly.GetTypes().Where(x => typeof(IBaseAnalyzer).IsAssignableFrom(x)).ToList();
            var analyzerType = analyzerTypes.FirstOrDefault(x => filename.StartsWith(x.GetCustomAttribute<AnalyzerAttribute>().Name, StringComparison.OrdinalIgnoreCase) );
            if(analyzerType == null)
            {//in case name of test is not first word
                analyzerType = analyzerTypes.FirstOrDefault(x => filename.IndexOf(x.GetCustomAttribute<AnalyzerAttribute>().Name, StringComparison.OrdinalIgnoreCase) >= 0);
            }
            
            return (analyzerType != null) ? Activator.CreateInstance(analyzerType)  : null;
            
        }
        public static string GetTestName(String fileName)
        {
            var analyzerTypes = typeof(AnalysisService).Assembly.GetTypes().Where(x => typeof(IBaseAnalyzer).IsAssignableFrom(x)).ToList();
            var analyzerType = analyzerTypes.FirstOrDefault(x => fileName.IndexOf(x.GetCustomAttribute<AnalyzerAttribute>().Name, StringComparison.OrdinalIgnoreCase) >= 0);
            
            return analyzerType.GetCustomAttribute<AnalyzerAttribute>().Name;
        }
        public static string GetDispenserNumber(String fileName)
        {
            string filename = Path.GetFileNameWithoutExtension(fileName);
            return GetUntilOrEmpty(filename," ");
        }

        public static string GetUntilOrEmpty( string text, string stopAt = "-")
        {
            if (!String.IsNullOrWhiteSpace(text))
            {
                int charLocation = text.IndexOf(stopAt, StringComparison.Ordinal);

                if (charLocation > 0)
                {
                    return text.Substring(0, charLocation);
                }
            }

            return String.Empty;
        }

        public static string GetDateTimeString(string text)
        {
            Regex regex = new Regex(@"\d{2}-\d{2}-\d{2}\s\d{2}-\d{2}");
           
            Match m = regex.Match(text);
            if (m.Success)
                return m.Value;
            return "";
            //if (m.Success)
            //{
            //    DateTime dt = DateTime.ParseExact(m.Value, "yyyy-MM-dd-hh-mm-ss", CultureInfo.InvariantCulture);
            //}
        }
    }
}