using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Ink;
using BS.Shared.Core;
using BeWo.Data.Access;
using BeWo.Data.Entities;
using BS.Shared;
using BS.Shared.Extensions;
using System.Diagnostics;

namespace BeWo.Service.Dienstplanung
{
	public class MitarbeiterstundenkontoRONeu
    {
		List<EmployeeDetail> _EmployeeDetailList = new List<EmployeeDetail>();
		List<TeamDetail> _TeamDetailList = new List<TeamDetail>();

		public DateTime ReportStartDate { get; set; }
		public DateTime ReportEndDate { get; set; }
		public decimal SollGesamt { get; set; }

		public decimal FlsSollGesamt { get; set; }

		public decimal FlsIstGesamt { get; set; }

		public decimal FlsDiffGesamt { get; set; }

		public decimal StundenGesamt { get; set; }

		public decimal RelationIstSollGesamt { get; set; }

		public decimal MittelbarIst { get; set; }

		public decimal RelationFlsZuMittelbar { get; set; }

		public List<EmployeeDetail> EmployeeDetailList
		{
			get { return this._EmployeeDetailList; }

			set { this._EmployeeDetailList = value; }
		}

		public List<TeamDetail> TeamDetailList
		{
			get { return this._TeamDetailList; }

			set { this._TeamDetailList = value; }
		}

		public static MitarbeiterstundenkontoRONeu Create(long? employeeOid, IList<long> teamOids, DateTime startDate, DateTime endDate, IEnumerable<long> employeeOids)
		{
			Team team = null;

		    Dictionary<long, bool> empOidDict = new Dictionary<long, bool>();

			var ro = new MitarbeiterstundenkontoRONeu {ReportStartDate = startDate, ReportEndDate = endDate};

			IList<Employee> employees = null;

			if (employeeOid.HasValue)
			{
				var emp = DAOFactory.GenericDAO.GetByID<Employee>(employeeOid.Value);
				employees = new List<Employee> {emp};
			}
			else if (teamOids != null)
			{
			    foreach (var teamOid in teamOids)
			    {
                    team = DAOFactory.GenericDAO.GetByID<Team>(teamOid);
			        if (employees == null)
			        {
                        employees = team.MemberList;
                    }
			        else
			        {
			            employees.AddRange(team.MemberList);
                        team = null;
                    }
                    
                }
				
			}
			else if(employeeOids != null)
			{
				employees = DAOFactory.GenericDAO.LoadByIDs<Employee>(employeeOids);
			}
			else
			{
				employees = DAOFactory.GenericDAO.GetAllActiveAndArchived<Employee>();
                
            }

		    if (employees == null)
		    {
		        employees = new List<Employee>();
		    }
			foreach (var emp in employees)
			{
			    if (!empOidDict.ContainsKey(emp.Oid.Value))
			    {
			        var empDetail = new EmployeeDetail();

			        bool add = true;

			        if (emp.IsActive == ActivationTypeId.Archived)
			        {
			            Contract c = emp.GetValidContractForDate(ro.ReportStartDate);

			            if (c == null) // Kein Vertrag vom 1. gefunden, gucken, ob es einen gibt, der mitten im Monat beginnt.
			            {
			                var c2 = GetNextValidContractForDate(ro.ReportStartDate, emp);
			                if (c2 != null && c2.EntryDate.HasValue && c2.EntryDate.Value < ro.ReportEndDate)
			                    c = c2;
			            }
			            if (c == null)
			            {
			                add = false;
			            }
			        }

			        if (add)
			        {
			            ro.EmployeeDetailList.Add(CreateEmployeeDetail(emp, team));
			        }

			        if (!empOidDict.ContainsKey(emp.Oid.Value))
			        {
			            empOidDict.Add(emp.Oid.Value, true);
                    }
			    }
			}

			var teamOid2Details = new Dictionary<long, TeamDetail>();

			foreach (var employee in ro.EmployeeDetailList)
			{
				if (employee.Teams.Count > 0)
				{
					foreach (var t in employee.Teams)
					{
						TeamDetail td;
						if (!teamOid2Details.ContainsKey(t.Oid.Value))
						{
							td = new TeamDetail {TeamName = t.Name, TeamLeader = t.Leader};
							ro.TeamDetailList.Add(td);
							teamOid2Details.Add(t.Oid.Value, td);
						}
						else
						{
							td = teamOid2Details[t.Oid.Value];
						}
						td.EmployeeDetailList.Add(employee);
					}
				}
			}
			ro.TeamDetailList.Sort((t1, t2) => t1.TeamName.CompareTo(t2.TeamName));
		    foreach (var teamDetail in ro.TeamDetailList)
		    {
		        if (teamDetail.EmployeeDetailList != null)
		        {
		            teamDetail.EmployeeDetailList.Sort((e1, e2) => e1.FullName.CompareTo(e2.FullName));
                }
		    }
			ro.EmployeeDetailList.Sort((e1, e2) => e1.FullName.CompareTo(e2.FullName));
            return ro;
        }

		private static Contract GetNextValidContractForDate(DateTime dt, Employee emp)
        {
            Contract contractNextToStartDate = emp.GetValidContractForDate(dt);

            if (contractNextToStartDate == null)
            {

                foreach (var item in emp.Contracts)
                {
                    if (item.EntryDate.HasValue && item.EntryDate.Value >= dt)
                    {
                        if (contractNextToStartDate == null || item.EntryDate.Value < contractNextToStartDate.EntryDate.Value)
                        {
                            contractNextToStartDate = item;
                        }
                    }


                }
            }
            return contractNextToStartDate;
        }

        public class TeamDetail
		{
			private List<EmployeeDetail> _EmployeeDetailList = new List<EmployeeDetail>();

			public string TeamName { get; set; }

			public Employee TeamLeader { get; set; }

			public decimal SollGesamt { get; set; }

			public decimal FlsSollGesamt { get; set; }

			public decimal FlsIstGesamt { get; set; }

			public decimal FlsDiffGesamt { get; set; }

			public decimal StundenGesamt { get; set; }

			public decimal RelationIstSollGesamt { get; set; }

			public decimal MittelbarIst { get; set; }

			public decimal RelationFlsZuMittelbar { get; set; }

			public List<EmployeeDetail> EmployeeDetailList
			{
				get
				{
					return this._EmployeeDetailList;
				}

				set
				{
					this._EmployeeDetailList = value;
				}
			}

		}

		[DebuggerDisplay("{Employee.Oid} {Employee.Person.FirstNameLastName} Soll: {StundenSollOhneUrlaubKrankheit} Ist: {StundenGesamtIst}")]
        public class EmployeeDetail
        {
            public IList<Team> Teams { get; set; }

			public IList<DayDetail> Days { get; set; }

            public IList<ServiceRecord> ServiceRecordsInSelectedTimeSpan { get; set; }

            public Employee Employee { get; set; }

            public string FirstName { get; set; }

            public string LastName { get; set; }

			public string FullName { get; set; }

			public bool HasContract { get; set; }

			public decimal FlsIst { get; set; }

			public decimal MittelbarIst { get; set; }

			public decimal Bu { get; set; }

			public decimal StundenSollMax { get; set; }

			//FLS Max - Urlaub/Krankheit und Fortbildung
			public decimal StundenSollOhneUrlaubKrankheit { get; set; }

			public decimal FlsSoll { get; set; }

			public decimal FlsDiff { get; set; }

			public decimal? Fehlzeiten { get; set; }

			public decimal? TageUrlaub { get; set; }

			public decimal? TageKrankheit { get; set; }

			public decimal? UrlaubUndKrankheit { get; set; }

			public decimal? UrlaubGesamtImAktuellenJahr { get; set; }

			public decimal? UrlaubSoll { get; set; }

			public decimal? UrlaubsKonto { get; set; }

			public decimal StundenMittelbarIst { get; set; }

			public decimal StundenGesamtIst { get; set; }

			public decimal RelationFlsZuMittelbar { get; set; }

			public decimal RelationIstSoll { get; set; }

			public decimal? Ueberstunden { get; set; }

			public decimal? UeberstundenVormonat { get; set; }

			public decimal? UeberstundenGesamt { get; set; }

			public decimal UeberstundenAusbezahlt { get; set; }

			public decimal WorkDaysThisMonth { get; set; }

			public decimal SollProTag { get; set; }

            public decimal SollProWoche { get; set; }

            public decimal Custom1 { get; set; }

            public decimal Custom2 { get; set; }

            public decimal Custom3 { get; set; }
              
            public decimal Custom4 { get; set; }

            public decimal Custom5 { get; set; }

            public decimal Custom6 { get; set; }

            public decimal Custom7 { get; set; }

            public decimal Custom8 { get; set; }

            public decimal Custom9 { get; set; }

            public decimal Custom10 { get; set; }

            public String Regelarbeitszeit { get; set; }

            public int ArbeitstageProWoche { get; set; }

            public decimal ArbeitstageImBerichtszeitraum { get; set; }

            public AbsenceTimeDaysNeu AbsenceTimeDays { get; set; }
            public decimal? HourlyRate { get; set; }
            public decimal? WeeklyFLS { get; set; }
            public decimal? EmployeeSalaryByContract { get; set; }
            public decimal? EmployeeSalaryByHours { get; set; }
            public EmploymentType EmploymentType { get; set; }
        }

		public class DayDetail
		{
			public DateTime Date { get; set; }

			public DateTime? StartDateTime1 { get; set; }
			public DateTime? EndDateTime1 { get; set; }

			public DateTime? StartDateTime2 { get; set; }
			public DateTime? EndDateTime2 { get; set; }

			public DateTime? StartDateTime3 { get; set; }
			public DateTime? EndDateTime3 { get; set; }

			public DateTime? StartDateTime4 { get; set; }
			public DateTime? EndDateTime4 { get; set; }

			public decimal HoursSaturday { get; set; }

			public decimal HoursSunday { get; set; }

			public decimal HoursHoliday { get; set; }

			public decimal HoursHoliday2 { get; set; }

			public IList<AbsenceTime> AbsenceTimes { get; set; }

			public decimal HoursInVacation { get; set; }

			public decimal HoursSick { get; set; }

			public decimal MinutesTotal { get; set; }

			public String Custom1 { get; set; }

			public String Custom2 { get; set; }

			public String Custom3 { get; set; }

			public String Custom4 { get; set; }

		    public String Custom5 { get; set; }

		    public String Custom6 { get; set; }

		    public String Custom7 { get; set; }

		    public String Custom8 { get; set; }

		    public String Custom9 { get; set; }

		    public String Custom10 { get; set; }

            public IList<ServiceRecord> ServiceRecords { get; set; }

			public int? NightStart { get; set; }

			public int? NightEnd { get; set; }

			public int? MaxHoursUntilBreak { get; set; }

		    public decimal PauseInMinuten { get; set; }

            public int? BreakMinutes { get; set; }

            public int? MaxHoursUntilBreak2 { get; set; }

            public int? BreakMinutes2 { get; set; }

            public decimal SpecialHours { get; set; }

            public IList<DateTimeSpan> ZusammenhaengendeZeitraeume { get; set; }

		    public String ZeitraeumeString
		    {
		        get
		        {
		            String str = "";
		            if (AbsenceTimes != null)
		            {
		                foreach (var at in AbsenceTimes)
		                {
		                    if (at.AbsenceReason != null)
		                    {
		                        if (str.Length > 0)
		                        {
		                            str += ", ";
		                        }

		                        str += at.AbsenceReason.Description
		                            ;
                            }

		                }
		            }
		            if (ZusammenhaengendeZeitraeume != null)
		            {
		                foreach (var dts in ZusammenhaengendeZeitraeume)
		                {
		                    if (dts.StartDateTime != dts.EndDateTime)
		                    {
		                        if (str.Length > 0)
		                        {
		                            str += ", ";
		                        }

		                        str += String.Format("{0:HH:mm} - {1:HH:mm}", dts.StartDateTime, dts.EndDateTime);
		                    }
		                }
		            }

		            return str;
		        }
		    }
   
        }

        public static EmployeeDetail CreateEmployeeDetail(Employee employee, Team team)
        {
            var employeeDetail = new EmployeeDetail
            {
                Teams = team == null ? DAOFactory.SearchDAO.FindTeamsOfEmployee(employee.Oid.Value) : new List<Team> { team },
                Employee = employee,
                LastName = employee.Person.LastName,
                FirstName = employee.Person.FirstName,
                FullName = $"{employee.Person.LastName}, {employee.Person.FirstName}"
            };

            return employeeDetail;
        }
	}
}