using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.Serialization;
using System.Text.RegularExpressions;
using BS.Shared.DataContracts.Compact;
using BS.Shared.Extensions;
using DevExpress.XtraScheduler;

namespace BS.Shared.DataContracts
{
	[DataContract]
	public class SchedulerAppointmentDC : IDataContract
	{
        [DataMember]
        public ActivationTypeId ActivationType { get; set; }

		[DataMember]
		public long? SchedulerAppointmentOid { get; set; }

		[DataMember]
		public long? NewSchedulerAppointmentVersion { get; set; }

		[DataMember]
		public bool IsPrivate { get; set; }

		[DataMember]
		public string Subject { get; set; }

		[DataMember]
		public string Description { get; set; }

		[DataMember]
		public DateTime? StartDate { get; set; }

		[DataMember]
		public DateTime? EndDate { get; set; }

		[DataMember]
		public CompactEmployeeDC Originator { get; set; }

		[DataMember]
		public bool AllDay { get; set; }

		[DataMember]
		public int Status { get; set; }

		[DataMember]
		public int Type { get; set; }

		[DataMember]
		public string Location { get; set; }

		[DataMember]
		public string RecurrenceInfo { get; set; }

		[DataMember]
		public string ReminderInfo { get; set; }

        [DataMember] 
        public List<CompactCustomerDC> CustomerList { get; set; }// = new List<CompactCustomerDC>();

		[DataMember] 
        public List<Employee2SchedulerAppointmentDC> EmployeeList { get; set; }// = new List<Employee2SchedulerAppointmentDC>();

		[DataMember] 
        public List<ResourceDC> ResourceList { get; set; }// = new List<ResourceDC>();

		[DataMember]
		public long? FormerBookingSequenceOid { get; set; }
	    
	    [DataMember]
	    public bool IsTeilnahmeBestaetigung { get; set; }

        [DataMember]
        public bool IsTask { get; set; }

	    [DataMember]
	    public string CompletedNotice { get; set; }

		[DataMember]
		public string CompletedUser { get; set; }

		[DataMember]
	    public string TaskDescription { get; set; }

	    [DataMember]
	    public DateTime? CompletedDate { get; set; }

	    [DataMember]
	    public DateTime? DueDate { get; set; }

	    [DataMember]
	    public List<CompactSupportConceptDC> SupportConceptList { get; set; }

        [DataMember]
        public long? LabelKey { get; set; }

		public int RecurrenceIndex { get; set; }

        public string RecurrenceId { get; set; }

        private static readonly Regex RecurrenceIdRegex = new Regex("(Id=\\\"[a-z0-9-]+\\\")");
        public string RecurrenceIdReference
        {
            get
            {
                if(RecurrenceInfo is null)
                {
                    return null;
                }

                var match = RecurrenceIdRegex.Match(RecurrenceInfo);

                if(!match.Success)
                {
                    return null;
                }

                var matchValue = match.Value;
                var idValue = matchValue.Split("\"");

                return idValue[1];

            }
        }

        private static readonly Regex RecurrenceIndexRegex = new Regex("(Index=\\\"[0-9]+\\\")");

        public int? RecurrenceIndexReference
        {
            get
            {
                if(RecurrenceInfo is null)
                {
                    return null;
                }

                var match = RecurrenceIndexRegex.Match(RecurrenceInfo);

                if(!match.Success)
                {
                    return null;
                }

                var matchValue = match.Value;
                var indexValue = matchValue.Split("\"");

                return int.TryParse(indexValue[1], out var indexInt) ? (int?)indexInt : null;
            }
        }

		[DataMember]
	    public long? FormerTaskOid { get; set; }

		[DataMember]
		public bool HasServiceRecordEntry { get; set; }

		[DataMember]
		public bool CanBeEdited { get; set; } = true;

		[DataMember]
		public List<ServiceRecordDC> ServiceRecordList { get; set; }

		public override bool Equals(object obj)
		{
		    if (!(obj is SchedulerAppointmentDC schedulerAppointmentDC))
		    {
		        return false;
		    }

            var oidEqualsValue = false;

            if(SchedulerAppointmentOid is null && schedulerAppointmentDC.SchedulerAppointmentOid is null)
		    {
				// Prüfen, ob es sich um einen Serientermin handelt und index und id vergleichen

                var appointmentType1 = (AppointmentType)Type;
                var appointmentType2 = (AppointmentType)schedulerAppointmentDC.Type;

				if(appointmentType1.Equals(AppointmentType.Occurrence) && appointmentType2.Equals(AppointmentType.Occurrence))
                {
                    var recurrenceId1 = RecurrenceIdReference;
                    var recurrenceIndex1 = RecurrenceIndex;

                    var recurrenceId2 = schedulerAppointmentDC.RecurrenceIdReference;
                    var recurrenceIndex2 = schedulerAppointmentDC.RecurrenceIndex;

                    if(!(recurrenceId1 is null || recurrenceId2 is null))
                    {
                        oidEqualsValue = recurrenceId1.Equals(recurrenceId2) && recurrenceIndex1.Equals(recurrenceIndex2);
                    }
                }
                else
                {
                    oidEqualsValue = GetHashCode() == schedulerAppointmentDC.GetHashCode();
				}
		    }

		    if(SchedulerAppointmentOid != null && schedulerAppointmentDC.SchedulerAppointmentOid != null)
		    {
                oidEqualsValue = SchedulerAppointmentOid == schedulerAppointmentDC.SchedulerAppointmentOid;
		    }

			var value = StartDate == schedulerAppointmentDC.StartDate && EndDate == schedulerAppointmentDC.EndDate && Type == schedulerAppointmentDC.Type && Description == schedulerAppointmentDC.Description &&
				        EmployeeList.SequenceEqual(schedulerAppointmentDC.EmployeeList) && 
			            ResourceList.SequenceEqual(schedulerAppointmentDC.ResourceList) && 
			            CustomerList.SequenceEqual(schedulerAppointmentDC.CustomerList) &&
                        ServiceRecordList.SequenceEqual(schedulerAppointmentDC.ServiceRecordList) &&
                        SupportConceptList.SequenceEqual(schedulerAppointmentDC.SupportConceptList) &&
                        oidEqualsValue;

			return value;
		}

		public override int GetHashCode()
		{
			return SchedulerAppointmentOid.HasValue
				? GetType().Name.GetHashCode() ^ SchedulerAppointmentOid.GetHashCode()
				: base.GetHashCode();
		}

        public override string ToString() => $"{SchedulerAppointmentOid} {StartDate:dd.MM.yyyy HH:mm}-{EndDate:dd.MM.yyyy HH:mm}: {Subject}";
    }
}