using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using BeWoPlanerMobil.Util.SchedulerUtils;
using BS.Shared.DataContracts;
using BS.Shared.DataContracts.Compact;
using DevExpress.XtraScheduler;

namespace BeWoPlanerMobil.Models
{
    public class DevExpressSchedulerModel : AbstractModel
    {
        public DevExpressSchedulerModel()
        {
            SessionModel = new DevExpressSchedulerSessionModel();
            SessionModel.ResetValues();

            ShowEmployeeColors = true;
        }

        public SchedulerViewType CurrentViewType
        {
            get => DevExpressSchedulerSessionModel.CurrentSchedulerViewType;
            set => DevExpressSchedulerSessionModel.CurrentSchedulerViewType = value;
        }

        public List<string> RecurrenceIdsWithOccurrences { get; set; }

        public DevExpressSchedulerSessionModel DevExpressSchedulerSessionModel => SessionModel as DevExpressSchedulerSessionModel;

        public List<CompactCustomerDC> PossibleCustomers { get; set; }
        public List<ResourceDC> PossibleResources { get; set; }
        public List<CompactEmployeeDC> PossibleEmployees { get; set; }

        #region Terminformular-Elemente
        public List<CompactCustomerDC> SelectedCustomers { get; set; }
        public List<ResourceDC> SelectedResources { get; set; }
        public List<CompactEmployeeDC> SelectedEmployees { get; set; }

        public List<long> SelectedCustomerOids
        {
            get => DevExpressSchedulerSessionModel.SelectedCustomerOids;
            set => DevExpressSchedulerSessionModel.SelectedCustomerOids = value;
        }

        public List<long> SelectedEmployeeOids
        {
            get => DevExpressSchedulerSessionModel.SelectedEmployeeOids;
            set => DevExpressSchedulerSessionModel.SelectedEmployeeOids = value;
        }

        public List<long> SelectedResourceOids
        {
            get => DevExpressSchedulerSessionModel.SelectedResourceOids;
            set => DevExpressSchedulerSessionModel.SelectedResourceOids = value;
        }
        #endregion

        public EmployeeAvailabilityObject EmployeeAvailabilityObject { get; set; }

        public IEnumerable Appointments { get; set; }
        public IEnumerable Resources { get; set; }

        public SchedulerAppointmentDC GetAppointmentByOid(long oid)
        {
            foreach(SchedulerAppointmentDC appointment in Appointments)
            {
                if(appointment.SchedulerAppointmentOid?.Equals(oid) ?? false)
                {
                    return appointment;
                }
            }

            return null;
        }

        public List<long> SelectedEmployeeOidsForFiltering
        {
            get => DevExpressSchedulerSessionModel.SelectedEmployeeOidsForFiltering;
            set => DevExpressSchedulerSessionModel.SelectedEmployeeOidsForFiltering = value;
        }

        public List<long> SelectedCustomerOidsForFiltering
        {
            get => DevExpressSchedulerSessionModel.SelectedCustomerOidsForFiltering;
            set => DevExpressSchedulerSessionModel.SelectedCustomerOidsForFiltering = value;
        }

        public List<long> SelectedResourceOidsForFiltering
        {
            get => DevExpressSchedulerSessionModel.SelectedResourceOidsForFiltering;
            set => DevExpressSchedulerSessionModel.SelectedResourceOidsForFiltering = value;
        }

        public List<CompactTeamDC> MyTeams { get; set; } = new List<CompactTeamDC>();
        public Dictionary<ValueListEntryDC, List<ResourceDC>> ResourceCategories2Resources { get; set; } = new Dictionary<ValueListEntryDC, List<ResourceDC>>();
        public List<CompactEmployeeDC> MyTeamEmployees { get; set; }
        public List<long> TeamMemberCustomerOids { get; set; }

        public List<CompactEmployeeDC> SelectedEmployeesForFiltering { get; set; }
        public List<CompactCustomerDC> SelectedCustomersForFiltering { get; set; }
        public List<ResourceDC> SelectedResourcesForFiltering { get; set; }


        public bool ShowTasks
        {
            get => DevExpressSchedulerSessionModel.ShowTasks;
            set => DevExpressSchedulerSessionModel.ShowTasks = value;
        }

        public bool ShowOnlyPrivateAppointments
        {
            get => DevExpressSchedulerSessionModel.ShowOnlyPrivateAppointments;
            set => DevExpressSchedulerSessionModel.ShowOnlyPrivateAppointments = value;
        }

        public bool ShowOnlyEmployees
        {
            get => DevExpressSchedulerSessionModel.ShowOnlyEmployees;
            set => DevExpressSchedulerSessionModel.ShowOnlyEmployees = value;
        }

        public bool ShowOnlyCustomers
        {
            get => DevExpressSchedulerSessionModel.ShowOnlyCustomers;
            set => DevExpressSchedulerSessionModel.ShowOnlyCustomers = value;
        }

        public bool ShowOnlyResources
        {
            get => DevExpressSchedulerSessionModel.ShowOnlyResources;
            set => DevExpressSchedulerSessionModel.ShowOnlyResources = value;
        }

        public bool ShowAbsenceTimes
        {
            get => DevExpressSchedulerSessionModel.ShowAbsenceTimes;
            set => DevExpressSchedulerSessionModel.ShowAbsenceTimes = value;
        }

        public bool ShowEmployeeColors
        {
            get => DevExpressSchedulerSessionModel.ShowEmployeeColors;
            set => DevExpressSchedulerSessionModel.ShowEmployeeColors = value;
        }

        public bool ShowOnlyMyOwnAppointments
        {
            get => DevExpressSchedulerSessionModel.ShowOnlyMyOwnAppointments;
            set => DevExpressSchedulerSessionModel.ShowOnlyMyOwnAppointments = value;
        }


        #region Benachrichtigungen

        public List<Employee2SchedulerAppointmentDC> OpenEmployee2AppointmentRels { get; set; }

        public List<long> OpenEmployee2AppointmentRelOids
        {
            get => DevExpressSchedulerSessionModel.OpenEmployee2AppointmentRelOids;
            set => DevExpressSchedulerSessionModel.OpenEmployee2AppointmentRelOids = value;
        }

        public List<long> OpenAppointmentOids
        {
            get => DevExpressSchedulerSessionModel.OpenAppointmentOids;
            set => DevExpressSchedulerSessionModel.OpenAppointmentOids = value;
        }

        public List<SchedulerAppointmentDC> OpenAppointments { get; set; }

        public SchedulerAppointmentDC AppointmentToAnswerOrUpdate { get; set; }

        public long? AppointmentOidToAnswerOrUpdate
        {
            get => DevExpressSchedulerSessionModel.AppointmentOidToAnswerOrUpdate;
            set => DevExpressSchedulerSessionModel.AppointmentOidToAnswerOrUpdate = value;
        }

        public Employee2SchedulerAppointmentDC Employee2AppointmentToAnswerOrUpdateRel { get; set; }

        public long? Employee2AppointmentToAnswerOrUpdateRelOid
        {
            get => DevExpressSchedulerSessionModel.Employee2AppointmentToAnswerOrUpdateRelOid;
            set => DevExpressSchedulerSessionModel.Employee2AppointmentToAnswerOrUpdateRelOid = value;
        }

        public int NotificationCount => OpenEmployee2AppointmentRelOids.Count;

        public SchedulerAppointmentDC GetAppointment2AnswerByOid(long appointmentOid)
        {
            return OpenAppointments?.FirstOrDefault(f => f.SchedulerAppointmentOid?.Equals(appointmentOid) ?? false);
        }

        public bool CanConfirmAllOpenAppointments()
        {
            return OpenAppointments?.Any(a => a.EndDate is null || a.EndDate.Value < DateTime.Now) is false;
        }

        #endregion

        public string GetNotificationInfo()
        {
            return $"{NotificationCount} Benachrichtigung{(NotificationCount == 1 ? string.Empty : "en")}";
        }
    }
}