using System.Text.RegularExpressions;

namespace TINK.Model.Repository.Exception
{
    public class NotAtStationException : InvalidResponseException
    {
        /// <summary> COPRI response status regular expression. </summary>
        public const string RETURNBIKE_FAILURE_STATUS_MESSAGE_UPPERCASE = "(FAILURE 2178: BIKE [0-9]+ OUT OF GEO FENCING\\. )([0-9]+)( METER DISTANCE TO NEXT STATION )([0-9]+)";

        /// <summary> Prevents invalid use of exception. </summary>
        private NotAtStationException() : base(typeof(NotAtStationException).Name)
        {
        }

        public static bool IsNotAtStation(string responseState, out NotAtStationException exception)
        {
            // Check if there are too many bikes requested/ booked.
            var match = Regex.Match(
                responseState.ToUpper(),
                RETURNBIKE_FAILURE_STATUS_MESSAGE_UPPERCASE);
            if (match.Groups.Count != 5
                || !int.TryParse(match.Groups[2].ToString(), out int meters)
                || !int.TryParse(match.Groups[4].ToString(), out int stationNr))
            {
                exception = null;
                return false;
            }

            exception = new NotAtStationException { Distance = meters, StationNr = stationNr };
            return true;
        }

        /// <summary> Holds the maximum count of bikes allowed to reserve/ book.</summary>
        public int Distance { get; private set; }

        /// <summary> Holds the maximum count of bikes allowed to reserve/ book.</summary>
        public int StationNr { get; private set; }
    }
}