using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Web.Mvc;

using BeWo.Service.ServiceImplementations;

using BeWoPlanerMobil.Models;
using BeWoPlanerMobil.Service;
using BeWoPlanerMobil.Util;

using static BeWoPlanerMobil.Util.MobileUtils;

using BS.Shared;
using BS.Shared.Core;
using BS.Shared.DataContracts;
using BS.Shared.DataContracts.Compact;
using BS.Shared.Extensions;
using BS.Shared.Services;


using DevExpress.XtraScheduler;
using DevExpress.XtraScheduler.Compatibility;
using static BS.Shared.ServiceRecordValidationResult;
using ServiceRecordDC = BS.Shared.DataContracts.ServiceRecordDC;

namespace BeWoPlanerMobil.Controllers
{
    public class MainController : AbstractBaseController
    {
        private const string _LeerzeichenFuerGetMethoden = " ";

        private MainModel _Model;
        public MainModel Model
        {
            get
            {
                if(!MobileSessionFacade.IsUserLoggedIn())
                {
                    RedirectToActionPermanent("Index", "Login");
                    return null;
                }

                if(((MainModel) Session[MainModelSessionKey])?.Employee == null)
                {
                    _Model = new MainModel { Employee = MobileSessionFacade.LoggedInEmployee };
                    Session[MainModelSessionKey] = _Model;
                }
                else
                {
                    _Model = (MainModel)Session[MainModelSessionKey];
                }

                return _Model;
            }
        }

        private const string MainModelSessionKey = "MainModel";
        
        private Dictionary<long, ValueListEntryDC> _ParentGoals;

        private static readonly List<ValueListEntryType> _Zieltypen = new List<ValueListEntryType> { ValueListEntryType.SupportConceptGoalCategoryType, ValueListEntryType.SupportConceptIndividualGoalCategoryType };
        private static readonly List<ValueListEntryType> _Massnahmentypen = new List<ValueListEntryType> { ValueListEntryType.SupportConceptGoalType, ValueListEntryType.SupportConceptIndividualGoalType };

        [Authorize]
        public ActionResult Main()
        {
            try
            {
                ViewData["ValidationError"] = string.Empty;

                if(!MobileSessionFacade.IsUserLoggedIn() || Request.Browser.Browser.Equals("InternetExplorer"))
                {
                    return RedirectToActionPermanent("Index", "Login");
                }

                Model.ShowExpiredSupportConcepts = GetUserSettingValue("ShowExpiredSupportConcepts") == "1";
                Model.ShowOnlyOwnSupportConcepts = GetUserSettingValue("ShowOnlyMySupportConcepts") == "1";

                var unter = GetSettingValue("ShowSignature");
                Model.ShowSignature = unter == "1";

                #if DEBUG
                Model.ShowSignature = true;
                #endif
                
                Model.GroupsOfPeople = EmployeeService.GetAllGroups(GetUser().Employee.EmployeeOid);
                
                Model.SelectedGoals = null;

                Model.ShowDistanceField = "1" == GetSettingValue("ShowDistanceFields");

                Model.Dokutypes = ValueListService.GetAllValueListEntrysByType(ValueListEntryType.DocumentType);
                if (Model.Dokutypes != null)
                {
                    Model.Dokutypes = Model.Dokutypes.OrderBy(s => s.ValueListEntryOid).ToArray();
                }

                if(MainModel.AllEmployees == null)
                {
                    MainModel.AllEmployees = EmployeeService.GetAllActiveEmployeesCompact().OrderBy(e => e.LastName).ToList();
                }

                var myRelatedCustomers = Model.Employee == null ? new List<CustomerEmployeeRelationDC>() : Model.Employee.RelatedCustomers;

                if (MobileSessionFacade.CheckForUserRight(UserRightType.CustomerView_View))
                {
                    Model.Customers = CustomerService.GetAllActiveCompactCustomers().OrderBy(k => k.LastName).ToList();
                }
                else if(MobileSessionFacade.CheckForUserRight(UserRightType.Customer_ViewMyCustomers))
                {
                    Model.Customers = CustomerService.GetCompactCustomersById(myRelatedCustomers.Select(c => c.Customer.CustomerOid).ToList()).OrderBy(k => k.LastName).ToList();
                }
                else
                {
                    Model.Customers = new List<CompactCustomerDC>();
                }

                if(MobileSessionFacade.CheckForUserRight(UserRightType.ServiceRecord_AllowCreationForOtherEmployees))
                {
                    Model.Employees = EmployeeService.GetAllActiveEmployeesCompact();
                }
                else if(MobileSessionFacade.CheckForUserRight(UserRightType.ServiceRecord_AllowCreationForOtherTeamMember) && Model.Employee?.EmployeeOid != null)
                {
                    Model.Employees = EmployeeService.GetAllTeamMember(MobileSessionFacade.LoggedInCompactEmployee);
                }
                else
                {
                    Model.Employees = new List<CompactEmployeeDC> { MobileSessionFacade.LoggedInCompactEmployee };
                }

                if(Model.ShowOnlyOwnSupportConcepts == false && MobileSessionFacade.CheckForUserRight(UserRightType.SupportConcept_ViewAllSupportConcepts))
                {
                    Model.SupportConcepts = CustomerService.GetAllActiveSupportConcepts();
                }
                else
                {
                    Model.SupportConcepts = CustomerService.GetAllActiveSupportConceptsByCustomers(myRelatedCustomers.Select(c => c.Customer.CustomerOid));
                }

                if(!Model.ShowExpiredSupportConcepts)
                {
                    Model.SupportConcepts = Model.SupportConcepts.Where(w =>
                    {
                        var endDate = MainModel.GetEndDateOfSupportConcept(w);

                        return endDate == null || endDate.Value >= DateTime.Now;
                    }).ToList();
                }

                if(Model.ServiceCategories == null)
				{
					Model.ServiceCategories = new List<ServiceCategoryModel>();
				}

                if(Model.SelectedConceptCostBearerRelations == null)
                {
                    Model.SelectedConceptCostBearerRelations = new List<SupportConceptCostBearerRelDC>();
                }
                
                if (Model.CostBearer2SupportConceptOid != null)
                {
                    LoadRecordsToModel();
                }

                if (Model.SelectedEmployee == null)
                {
                    Model.SelectedEmployee = MobileSessionFacade.LoggedInCompactEmployee;
                }

                var IsServiceRecordNoticeMandatorySetting = GetSettingValue("IsServiceRecordNoticeMandatory");
                if (IsServiceRecordNoticeMandatorySetting != null && IsServiceRecordNoticeMandatorySetting == "0")
                {
                    Model.IsServiceRecordNoticeMandatory = false;
                }
                else
                {
                    Model.IsServiceRecordNoticeMandatory = true;
                }

                if(Model.SelectedSupportConceptListObject == null)
                {
                    Model.SelectedSupportConceptListObject = Model.SupportConceptListObjects.First();
                }
            }
            catch (Exception e)
            {
                log.Error(e.Message, e);
            }

            return View(Model);
        }

        [HttpPost]
        [Authorize]
        public ActionResult SetShowOnlyOwnSupportConcepts(FormCollection collection)
        {
            if (Model == null)
            {
                return RedirectToActionPermanent("Index", "Login");
            }

            var newValue = "true,false" == collection["ShowOnlyOwnSupportConcepts"];

            Model.ShowOnlyOwnSupportConcepts = newValue;

            return UpdateSettings("ShowOnlyMySupportConcepts", newValue ? "1" : "0"); ;
        }

        [HttpPost]
        [Authorize]
        public ActionResult SetShowExpiredSupportConcepts(FormCollection pCollection)
        {
            if (Model == null)
            {
                return RedirectToActionPermanent("Index", "Login");
            }

            var newValue = "true,false" == pCollection["ShowExpiredSupportConcepts"];

            Model.ShowExpiredSupportConcepts = newValue;

            return UpdateSettings("ShowExpiredSupportConcepts", newValue ? "1" : "0");
        }

        [Authorize]
        public ActionResult UpdateSettings(string pKey, string pValue)
        {
            if (Model == null)
            {
                return RedirectToActionPermanent("Index", "Login");
            }

            var userSettings = GetUser().Settings;

            UserSettingsUtils.SetSettingValue(SettingsType.ApplicationSettings, pKey, pValue, userSettings);

            UserService.UpdateUserSettings(GetUser().UserOid.Value, userSettings);

            return RedirectToAction("Main");
        }

        [HttpPost]
        public new ActionResult Logout()
        {    
            return base.Logout();
        }

        [Authorize]
        public string LoadGoals(long pCostbearer2SupportConceptOid)
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return " ";
            }

            var sc = Model.SupportConcepts.FirstOrDefault(f => f.CostBearerRelations.Any(cbr => cbr.CostBearer2SupportConceptOid.HasValue && cbr.CostBearer2SupportConceptOid.Value.Equals(pCostbearer2SupportConceptOid)));

            if (sc == null)
            {
                return " ";
            }

            Model.SelectedSupportConcept = sc;

            var selectedGoals = sc.Goals;
            var missingParents = selectedGoals.Where(w => w.ParentOid != null && false == selectedGoals.Any(a => a.ValueListEntryOid.Equals(w.ParentOid))).Select(s => s.ParentOid).ToList();

            _ParentGoals = new Dictionary<long, ValueListEntryDC>();
            foreach (var oid in missingParents)
            {
                LoadMissingParents(oid.Value);
            }

            var goalTree = BuildGoalTree(selectedGoals.Union(_ParentGoals.Values).ToList());

            return SerializeObject(goalTree);
        }

        private static List<GoalTreeItem> BuildGoalTree(List<ValueListEntryDC> goals)
        {
            var ziele = goals.Where(w => _Zieltypen.Contains(w.Type)).OrderBy(s => s.TypeDescription).ToList();
            var massnahmen = goals.Where(w => _Massnahmentypen.Contains(w.Type)).OrderBy(s => s.TypeDescription).ToList();
            var goalTree = new List<GoalTreeItem>();
            var goalTreeDic = new Dictionary<long, GoalTreeItem>();

            
            foreach(var ziel in ziele)
            {
                var treeItem = new GoalTreeItem {Children = new List<GoalTreeItem>(), Header = ziel.TypeDescription, ParentOid = ziel.ParentOid, ValueListEntryOid = ziel.ValueListEntryOid};

				goalTreeDic.Add(ziel.ValueListEntryOid.Value, treeItem);

                if(ziel.ParentOid == null)
                {
                    goalTree.Add(treeItem);
                }
            }

            foreach(var zielMitEltern in goalTreeDic.Values.Where(w => w.ParentOid != null))
            {
                goalTreeDic[zielMitEltern.ParentOid.Value].Children.Add(zielMitEltern);
            }

            foreach(var ziel in massnahmen)
            {
                var kind = new GoalTreeItem {Children = new List<GoalTreeItem>(), Header = ziel.TypeDescription, IsLeaf = true, ValueListEntryOid = ziel.ValueListEntryOid};

                if(ziel.ParentOid != null && goalTreeDic.ContainsKey(ziel.ParentOid.Value))
                {
                    kind.ParentOid = goalTreeDic[ziel.ParentOid.Value].ParentOid;
                    goalTreeDic[ziel.ParentOid.Value].Children.Add(kind);
                }
            }

			foreach(var item in goalTreeDic.Values)
			{
				if(item.Children.Count == 0)
				{
				    item.IsLeaf = true;
				}
			}
            
            return goalTree;
        }

        private void LoadMissingParents(long pParentOid)
        {
            while(true)
            {
                var parentDC = ValueListService.GetValueListEntryByOid(pParentOid);

                if(!_ParentGoals.ContainsKey(parentDC.ValueListEntryOid.Value))
                {
                    _ParentGoals.Add(parentDC.ValueListEntryOid.Value, parentDC);

                    if(parentDC.ParentOid != null)
                    {
                        pParentOid = parentDC.ParentOid.Value;
                        continue;
                    }
                }

                break;
            }
        }

        [Authorize]
        public string LoadBWPSettings()
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            var m = OperationsService.GetMandator();
            var time = MobileUtils.GetSettingValue(m.Settings, "TimeUntilUILock");
	        
            return SerializeObject(time);
        }

        [Authorize]
        public string CheckEndDate()
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            var m = OperationsService.GetMandator();
            var endtime = MobileUtils.GetSettingValue(m.Settings, "IsEndDateVisible");

            return SerializeObject(endtime);
        }

        [Authorize]
        public string CheckOnlyYearMonth()
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            var m = OperationsService.GetMandator();
            var yearMonth = MobileUtils.GetSettingValue(m.Settings, "IsOnlyYearMonthVisible");

            return SerializeObject(yearMonth);
        }

        [Authorize]
        public string CheckIsZeiterfassDateNormal()
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            var m = OperationsService.GetMandator();
            var normal = MobileUtils.GetSettingValue(m.Settings, "IsZeiterfassDateNormal");

            return SerializeObject(normal);
        }

        [Authorize]
        public string CheckIsZeiterfassungInStdMin()
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            var m = OperationsService.GetMandator();
            var zeiterInStdMin = MobileUtils.GetSettingValue(m.Settings, "IsZeiterfassungInStdMin");

            return SerializeObject(zeiterInStdMin);
        }

        [Authorize]
        public string CheckDokuReiter()
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            return SerializeObject(Model.Dokutypes);
        }

        private static string GetUserSettingValue(string key)
        {
            var user = MobileSessionFacade.LoggedInUser;

            var settings = user?.SettingList.FirstOrDefault(f => f.Type.Equals(SettingsType.ApplicationSettings));

            return settings != null ? MobileUtils.GetSettingValue(settings.Value, key) : null;
        }

        private string GetSettingValue(string key)
        {
            var man = OperationsService.GetMandator();
            return MobileUtils.GetSettingValue(man.Settings, key);
        }

        [Authorize]
        public string LoadAppointments(string newtoday)
        {
            try
            {
                if (Model == null)
                {
                    RedirectToActionPermanent("Index", "Login");
                    return _LeerzeichenFuerGetMethoden;
                }

                var date = DateTime.ParseExact(newtoday, "dd.MM.yyyy", null);

                var appointments = KalenderService.LoadFilteredAppointments(true, Model.Employee.EmployeeOid.Value,
                    date.Date, date.Date.AddDays(1), new List<long>(), new List<long>(), new List<long>(), false, false,
                    false, false, true).ToList();

                var holySweetFlyingFuck = appointments.Where(w =>
                    w.StartDate.HasValue && w.EndDate.HasValue &&
                    ((date.InBetween(w.StartDate.Value, w.EndDate.Value, false) ||
                      date.CompareShortDates(w.StartDate.Value)) && w.RecurrenceInfo == null ||
                     w.RecurrenceInfo != null && (w.Type == 3 || w.Type == 4) &&
                     (date.InBetween(w.StartDate.Value, w.EndDate.Value, false) ||
                      date.CompareShortDates(w.StartDate.Value)))).ToList();

                var deletedOccurrences = holySweetFlyingFuck.Where(w => w.Type == 4).Select(s => GetOccurrenceId(s.RecurrenceInfo)).ToList();
                var changedOccurrences = holySweetFlyingFuck.Where(w => w.Type == 3).Select(s => GetOccurrenceId(s.RecurrenceInfo)).ToList();

                holySweetFlyingFuck = holySweetFlyingFuck.Where(w => w.Type != 4).ToList();

                foreach (var appointment in appointments)
                {
                    if (appointment.RecurrenceInfo != null && appointment.Type == 1)
                    {
                        var recurrenceInfo = new RecurrenceInfo();
                        recurrenceInfo.FromXml(appointment.RecurrenceInfo);
                        var occurrenceCalculator = OccurrenceCalculator.CreateInstance(recurrenceInfo);

                        var pattern = StaticAppointmentFactory.CreateAppointment(AppointmentType.Pattern);
                        pattern.RecurrenceInfo.FromXml(appointment.RecurrenceInfo);
                        pattern.Start = pattern.RecurrenceInfo.Start;
                        pattern.End = pattern.RecurrenceInfo.End;
                        var patternId = pattern.RecurrenceInfo.Id.ToString();

                        var interval = new TimeInterval(date, date.AddDays(1));

                        var occurrences = occurrenceCalculator.CalcOccurrences(interval, pattern);

                        if (occurrences.Count > 0)
                        {
                            foreach (var termin in occurrences.GetAppointments(interval))
                            {
                                var index = termin.RecurrenceIndex;

                                var duration = (appointment.EndDate.Value - appointment.StartDate.Value).TotalMinutes;

                                if (!date.InBetween(termin.Start.GetShortDateTime(), termin.Start.AddMinutes(duration),
                                        true) || changedOccurrences.Any(a =>
                                        a.PatternId.Equals(patternId) && a.Index == index) ||
                                    deletedOccurrences.Any(a => a.PatternId.Equals(patternId) && a.Index == index))
                                {
                                    continue;
                                }

                                holySweetFlyingFuck.AddIfNotIn(new SchedulerAppointmentDC
                                {
                                    AllDay = appointment.AllDay,
                                    CustomerList = appointment.CustomerList,
                                    Description = appointment.Description,
                                    EmployeeList = appointment.EmployeeList,
                                    EndDate = termin.Start.AddMinutes(duration),
                                    FormerBookingSequenceOid = appointment.FormerBookingSequenceOid,
                                    IsPrivate = appointment.IsPrivate,
                                    LabelId = appointment.LabelId,
                                    Location = appointment.Location,
                                    Originator = appointment.Originator,
                                    RecurrenceInfo = termin.RecurrenceInfo.ToXml(),
                                    ReminderInfo = appointment.ReminderInfo,
                                    ResourceList = appointment.ResourceList,
                                    StartDate = termin.Start,
                                    Subject = appointment.Subject ?? "",
                                    Type = appointment.Type
                                });
                            }
                        }
                    }
                }

                return SerializeObject(holySweetFlyingFuck.OrderBy(x => x.StartDate.Value.Hour));

            }
            catch (Exception e)
            {
                log.Error(e.Message, e);
                return SerializeObject("Fehler 510");
            }
        }

        [Authorize]
        public string LoadStatistics(long oid)
        {
            try
            {
                if (Model == null)
                {
                    RedirectToActionPermanent("Index", "Login");
                    return _LeerzeichenFuerGetMethoden;
                }

                var supportConceptStatistics = OperationsService.CreateSupportConceptStatistics(oid, DateTime.Now); 

                return SerializeObject(supportConceptStatistics);
            }
            catch (Exception e)
            {
				log.Error(e.Message, e);
                return SerializeObject("Fehler 560");
            }
        }

        [Authorize]
        public string UpdateAppointment(long oid, string betreff, string notice, string startZeit, string endZeit, string day, string endDate, string pLocation)
        {
            try
            {
                if (Model == null)
                {
                    RedirectToActionPermanent("Index", "Login");
                    return _LeerzeichenFuerGetMethoden;
                }

                var date = DateTime.Parse(day);
                var end = DateTime.Parse(endDate);
                var zeit = ConvertRecordTimesWithEndDate(startZeit, endZeit, date, end, 0);

                var b1 = KalenderService.GetSchedulerAppointmentByid(oid);

                b1.EndDate     = zeit[1];
                b1.StartDate   = zeit[0];
                b1.Subject     = betreff;
                b1.Description = notice;
                b1.Location    = pLocation;

                KalenderService.UpdateSchedulerAppointments(new List<SchedulerAppointmentDC>{b1});

                return _LeerzeichenFuerGetMethoden;
            }
            catch (Exception e)
            {
				log.Error(e.Message, e);
                return SerializeObject("Fehler 550: Internal Server Error");
            }
        }

        [Authorize]
        public void InsertAppointment(string pStartDate, string pStartTime, string pEndTime, string pSubject, string pNotice, string pEndDate, string pLocation)
        {
            try
            {
                if (Model == null)
                {
                    RedirectToActionPermanent("Index", "Login");
                    return;
                }

                var date = DateTime.Parse(pStartDate);
                var end = DateTime.Parse(pEndDate);
                var zeit = ConvertRecordTimesWithEndDate(pStartTime, pEndTime, date, end, 0);

                var newApp = new SchedulerAppointmentDC
                {
                    EmployeeList = new List<Employee2SchedulerAppointmentDC>(),
                    CustomerList = new List<CompactCustomerDC>(),
                    ResourceList = new List<ResourceDC>(),
                    SupportConceptList = new List<CompactSupportConceptDC>(),
                    EndDate = zeit[1],
                    StartDate = zeit[0],
                    Subject = pSubject,
                    Description = pNotice,
                    Originator = MobileSessionFacade.LoggedInCompactEmployee,
                    Location = pLocation
                };

                //var newE2S = new Employee2SchedulerAppointmentDC
                //{
                //    Employee = MobileSessionFacade.LoggedInCompactEmployee
                //};

                //newApp.EmployeeList.Add(newE2S);

                var list = new List<SchedulerAppointmentDC> {newApp};

                KalenderService.InsertSchedulerAppointments(list);
            }
            catch (Exception e)
            {
				log.Error(e.Message, e);
                SerializeObject("Fehler 520");
            }
        }

        [Authorize]
        public string LoadBeWoTasks(string newtoday)
        {
            try
            {
                if (Model == null)
                {
                    RedirectToActionPermanent("Index", "Login");
                    return _LeerzeichenFuerGetMethoden;
                }

                var date = DateTime.ParseExact(newtoday, "dd.MM.yyyy", null);

                var tasks = AnalysisService.GetTasksForEmployeeByDate(Model.Employee.EmployeeOid.Value, date);

                return SerializeObject(tasks);
            }

            catch (Exception e)
            {
				log.Error(e.Message, e);
                return SerializeObject("Fehler 530");
            }
        }

        [Authorize]
        public string SaveUnterschrift(string blob, string zeitstempel, long? ServiceRecord)
        {
            try
            {
                if (Model == null)
                {
                    RedirectToActionPermanent("Index", "Login");
                    return _LeerzeichenFuerGetMethoden;
                }

                var date = DateTime.Parse(zeitstempel);

                OperationsService.InsertSignature(new SignatureDC
                {
                    DataBild = blob,
                    Zeitstempel = date,
                    ServiceRecordOid = ServiceRecord
                });

                return _LeerzeichenFuerGetMethoden;
            }
            catch (Exception e)
            {
				log.Error(e.Message, e);
                return SerializeObject("Fehler 540");
            }
        }

        [Authorize]
        public string SetSaveSignature(bool save)
        {
            try
            {
                if (Model == null)
                {
                    RedirectToActionPermanent("Index", "Login");
                    return _LeerzeichenFuerGetMethoden;
                }

                Model.SaveSignature = save;
                return _LeerzeichenFuerGetMethoden;
            }
            catch (Exception e)
            {
				log.Error(e.Message, e);
                return SerializeObject("Fehler 777: Fail Error Compilation");
            }
        }

        [Authorize]
		public string LoadServiceCategories(long pServiceCategoryOid)
	    {
	        if (Model == null)
	        {
	            RedirectToActionPermanent("Index", "Login");
	            return _LeerzeichenFuerGetMethoden;
	        }

            try
	        {
	            var scm = Model?.ServiceCategories.FirstOrDefault(s => s.ServiceCategoryOid.Value == pServiceCategoryOid);

	            return SerializeObject(scm != null ? scm.ServiceDescriptions : new List<ServiceDescriptionDC>());
	        }
	        catch(Exception exception)
	        {
	            Debug.WriteLine(exception);
	            throw;
	        }
	    }

        [Authorize]
        public string LoadTextbausteineForServiceCategory(long pServiceCategoryOid)
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            try
            {
                if (!MobileSessionFacade.CheckForUserRight(UserRightType.TextbausteineNurEigeneAnsehen) && !MobileSessionFacade.CheckForUserRight(UserRightType.TextbausteineAlleAnsehen))
                {
                    return _LeerzeichenFuerGetMethoden;
                }

                var textbausteine = OperationsService.GetAllTextModules();
                foreach (var tm in textbausteine)
                {
                    if (tm.Text == null)
                    {
                        tm.Text = "";
                    }
                }
                if(!MobileSessionFacade.CheckForUserRight(UserRightType.TextbausteineAlleAnsehen))
                {
                    textbausteine = textbausteine.Where(w => w.Employee.EmployeeOid == Model.Employee.EmployeeOid).ToList();
                }

                Model.Textbausteine = textbausteine.Where(w => w.ServiceCategory == null || w.ServiceCategory.ServiceCategoryOid == pServiceCategoryOid).ToList();

                Model.Textbausteine.AddRangeIfElementsNotIn(Utils.GetParentTextModules(Model.Textbausteine));

                var displayItems = Model.Textbausteine.Select(s => new TextbausteinDisplayItem(s.TextModuleOid.Value, s.Name, s.Parent?.TextModuleOid, s.IsParent, s.Text)).ToList();

                foreach(var item in displayItems)
                {
                    if(item.ParentOid != null)
                    {
                        var parent = displayItems.FirstOrDefault(f => f.Oid == item.ParentOid);
                        parent?.Children.AddIfNotIn(item);
                    }
                }

                displayItems = displayItems.Where(w => w.ParentOid == null).ToList();

                return SerializeObject(displayItems);
            }
            catch(Exception exception)
            {
                Debug.WriteLine(exception);
                throw;
            }
        }

        [Authorize]
        public string LoadCompleteTextbausteinByOid(long pTextbausteinOid)
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            var abc = Model.Textbausteine.FirstOrDefault(f => f.TextModuleOid.HasValue && f.TextModuleOid.Value == pTextbausteinOid);

            return abc?.Text;
        }

        public string ErrorZeiterfassungAnzeigen(int errorwert)
	    {
		    try
		    {
		        if (Model == null)
			    {
			        RedirectToActionPermanent("Index", "Login");
			        return _LeerzeichenFuerGetMethoden;
			    }

		        Model.ErrorWert = errorwert;

		        return _LeerzeichenFuerGetMethoden;
            }
		    catch (Exception e)
		    {
				log.Error(e.Message, e);
		        return SerializeObject("Fehler 777: Fail Error Compilation");
		    }
	    }

	    [HttpPost]
        [Authorize]
        public ActionResult CreateServiceRecord(FormCollection collection)
        {
            try
            {
                if(Model == null)
                {
                    return RedirectToActionPermanent("Index", "Login");
                }

                string doku1;

                if(Model.Dokutypes != null && Model.Dokutypes.Length > 1)
                {
                    doku1 = collection["Dokumentation"];
                }
                else
                {
                    doku1 = collection["Dokumentation6"];
                }
                
                log.Info($"CreateServiceRecord: datum:{collection["Datum"]}; start:{collection["Start"]}; ende:{collection["Ende"]}; dauer:{collection["Dauer"]}; doku:{doku1}; aktion:{collection["versteckt"]}");
                
                if(string.IsNullOrEmpty(collection["Datum"]))
                {
                    return View("Main", Model);
                }

                var distanz = collection["Distanz"];
                var distanceInMeters = 0;

                if(!string.IsNullOrEmpty(distanz))
                {
                    if(int.TryParse(distanz, out var parsedDistance))
                    {
                        distanceInMeters = parsedDistance;
                    }
                }

                var submitBtnVal = collection["versteckt"];
                var selectedCostbearerSCRelOid = Model.CostBearer2SupportConceptOid < 1 ? null : Model.CostBearer2SupportConceptOid;
                var datum = Convert.ToDateTime(collection["Datum"]);

                var enddatum = datum;

                var start = collection["Start"];
                var ende = collection["Ende"];
                var dauer = 0;

                if(datum > enddatum) {
                    enddatum = datum;
                }

                if(!string.IsNullOrEmpty(collection["Dauer"]))
                {
                    int.TryParse(collection["Dauer"], out dauer);
                }
                
                var doku2 = collection["Dokumentation2"];
                var doku3 = collection["Dokumentation3"];
                var doku4 = collection["Dokumentation4"];
                var doku5 = collection["Dokumentation5"];

                var zeitenFeld = new DateTime[2];

                if(start == string.Empty && ende == string.Empty)
                {
                    zeitenFeld[0] = new DateTime(datum.Year, datum.Month, datum.Day, 0, 0, 1);

                    if(enddatum == datum)
                    {
                        zeitenFeld[1] = new DateTime(datum.Year, datum.Month, datum.Day, 0, 0, 1).AddMinutes(dauer);
                    }
                    else
                    {
                        zeitenFeld[1] = new DateTime(enddatum.Year, enddatum.Month, enddatum.Day, 0, 0, 1).AddMinutes(dauer);
                    }
                }
                else
                {
                    zeitenFeld = enddatum == datum ? ConvertRecordTimes(start, ende, datum, dauer) : ConvertRecordTimesWithEndDate(start, ende, datum, enddatum, dauer);
                }

                if(dauer == 0 || zeitenFeld[1] != zeitenFeld[0])
                {
                    dauer = (int) (zeitenFeld[1] - zeitenFeld[0]).TotalMinutes;
                }
                
                if(submitBtnVal.Equals("Speichern"))
                {
                    var selectedRecordOid = Model.SelectedServiceRecordOid ?? Model.SelectedServiceRecord.ServiceRecordOid;
                    Model.NewServiceRecord = OperationsService.GetServiceRecordById(selectedRecordOid.Value);
                }

                if(Model.NewServiceRecord == null)
                {
                    return RedirectToActionPermanent("Main");
                }

                Model.NewServiceRecord.IP = Request.UserHostAddress;
                
                Model.NewServiceRecord.Goals = Model.SelectedGoals;
                Model.NewServiceRecord.Start = zeitenFeld[0];
                Model.NewServiceRecord.End = zeitenFeld[1];

                Model.NewServiceRecord.DistanceInMeter = distanceInMeters;

                if(Model.Employee.EmployeeOid != null)
                {
                    if(!submitBtnVal.Equals("Speichern"))
                    {
                        Model.NewServiceRecord.Employee = Model.SelectedEmployee ?? MobileSessionFacade.LoggedInCompactEmployee;
                    }
                    else
                    {
                        if (Model.SelectedEmployee != null)
                        {
                            Model.NewServiceRecord.Employee = Model.SelectedEmployee;
                        }
                    }
                    var sc = Model.SupportConcepts.FirstOrDefault(fod => fod.CostBearerRelations.Any(a => a.CostBearer2SupportConceptOid.HasValue && a.CostBearer2SupportConceptOid.Value.Equals(selectedCostbearerSCRelOid)));
	                if(sc != null)
	                {
		                if(sc.SupportConceptOid != null)
		                {
			                Model.NewServiceRecord.SupportConcept = CustomerService.LoadCompactSupportConceptDC(sc.SupportConceptOid.Value, Model.Employee.EmployeeOid);
		                }

		                Model.NewServiceRecord.Customer = sc.Customer;

		                var cb2ScRel = sc.CostBearerRelations.First(f => f.CostBearer2SupportConceptOid.HasValue && f.CostBearer2SupportConceptOid.Equals(selectedCostbearerSCRelOid));
		                Model.NewServiceRecord.CostBearer = cb2ScRel.CostBearer;

		                var intervall = Model.NewServiceRecord.CostBearer.ActualMinuteIntervall;

		                if(intervall > 0)
		                {
			                Model.NewServiceRecord.RoundedDuration = dauer % intervall != 0 ? dauer + (intervall - dauer % intervall) : dauer;
		                }
		                else
		                {
			                Model.NewServiceRecord.RoundedDuration = dauer;
		                }

		                Model.NewServiceRecord.CostBearer2SupportConceptOid = selectedCostbearerSCRelOid;
	                }
	                else
	                {
						Model.NewServiceRecord.RoundedDuration = dauer;
	                }
                }

                Model.NewServiceRecord.DurationInStunden = ZeiterfassungsDauer.Minuten;
                
                Model.NewServiceRecord.ServiceRecordFormat = ServiceRecordFormate.OriginaleZeiterfassung;
                
                Model.NewServiceRecord.Notice = string.IsNullOrEmpty(doku1) ? null : doku1;

                Model.NewServiceRecord.Notice2 = string.IsNullOrEmpty(doku2) ? null : doku2;
                Model.NewServiceRecord.Notice3 = string.IsNullOrEmpty(doku3) ? null : doku3;
                Model.NewServiceRecord.Notice4 = string.IsNullOrEmpty(doku4) ? null : doku4;
                Model.NewServiceRecord.Notice5 = string.IsNullOrEmpty(doku5) ? null : doku5;

                var serviceDescOid = 0L;

                if (Model.SelectedServiceDescriptionOid.HasValue)
                {
                    serviceDescOid = Model.SelectedServiceDescriptionOid.Value;
                }
                else if (!string.IsNullOrEmpty(collection["ServiceDescription"]))
                {
                    serviceDescOid = Convert.ToInt64(collection["ServiceDescription"]);
                }

                if (serviceDescOid > 0)
                {
                    Model.NewServiceRecord.ServiceDescription = OperationsService.GetServiceDescription(serviceDescOid);
                }

                if (Model.NewServiceRecord.RoundedDuration == 0)
                {
                    Model.NewServiceRecord.RoundedDuration = dauer;
                }
                
                Model.NewServiceRecord.IP = Request.UserHostAddress;
                Model.NewServiceRecord.InsertedOn = DateTime.Now;
                Model.NewServiceRecord.InsUser = $"{MobileSessionFacade.LoggedInEmployee.FirstName} {MobileSessionFacade.LoggedInEmployee.LastName}";
                Model.NewServiceRecord.IsCreatedInMobileClient = true;

                if(Model.IsInGroupBookingMode && Model.SelectedSupportConcepts.Count > 1)
                {
                    return submitBtnVal.Equals("Anlegen") ? SaveGroupBooking() : UpdateGroupBooking();
                }
                
                if(submitBtnVal.Equals("Anlegen"))
                {
                    var oidList = OperationsService.InsertNewServiceRecords(new List<ServiceRecordDC> { Model.NewServiceRecord });

                    Model.ServiceRecordOid = oidList[0];
                }
                else
                {
                    OperationsService.UpdateServiceRecords(new List<ServiceRecordDC> { Model.NewServiceRecord });
                }

                Model.NewServiceRecord = new ServiceRecordDC();

                if(selectedCostbearerSCRelOid.HasValue)
                {
                    Model.ServiceRecords = OperationsService.FindServiceRecordsForLastDays(selectedCostbearerSCRelOid, Model.Zeitraum, Model.Employee.EmployeeOid).ToList();
                }
            }
            catch (Exception e)
            {
                log.Error(e.Message, e);
            }

            Model.SaveSignature = Model.ShowSignature && Model.SelectedSupportConcept != null;

            return RedirectToActionPermanent("Main");
        }

        private ActionResult SaveGroupBooking()
        {
            var employeeCount = Model.SelectedEmployees.Count;
            var personCount = Model.SelectedSupportConcepts.Count;
            
            var cb2SCOids = (from scDc in Model.SelectedSupportConcepts where scDc.CostBearerRelations != null && scDc.CostBearerRelations.Count > 0 let costBearer2SupportConceptOid = scDc.CostBearerRelations[0].CostBearer2SupportConceptOid where costBearer2SupportConceptOid != null select costBearer2SupportConceptOid.Value).ToList();

            var list = CalculateGroupBookingDuration(employeeCount, personCount, cb2SCOids);

            var newDCList = new List<ServiceRecordDC>();

            foreach(var dc in list)
            {
                foreach(var emp in Model.SelectedEmployees)
                {
                    var newDC = CloneServiceRecordForGroupBooking(dc);

                    newDC.Employee = emp;
                    newDC.InsertedOn = DateTime.Now;
                    newDCList.Add(newDC);
                }
            }

            if(newDCList.Count > 0)
            {
                if(newDCList.Count == 1)
                {
                    OperationsService.InsertNewServiceRecords(newDCList);
                }
                else
                {
                    var groupDC = new ServiceRecordGroupDC
                    {
                        EmployeeCount     = employeeCount,
                        CustomerCount     = personCount,
                        StartDate         = Model.NewServiceRecord.Start,
                        EndDate           = Model.NewServiceRecord.End,
                        Notice            = Model.NewServiceRecord.Notice,
                        Notice2           = Model.NewServiceRecord.Notice2,
                        Notice3           = Model.NewServiceRecord.Notice3,
                        Notice4           = Model.NewServiceRecord.Notice4,
                        Notice5           = Model.NewServiceRecord.Notice5,
                        ServiceRecordList = newDCList
                    };

                    if(Model.NewServiceRecord.GroupRoundedDuration != null)
                    {
                        groupDC.RoundedDuration = Model.NewServiceRecord.GroupRoundedDuration.Value;
                    }

                    OperationsService.InsertNewServiceRecordGroup(groupDC);
                }
            }

            Model.SelectedSupportConcepts.Clear();
            Model.SelectedConceptCostBearerRelations.Clear();
            Model.SelectedCostbearerRelOids.Clear();
            Model.SelectedGroupOfPeopleOids.Clear();
            Model.SelectedEmployees = new List<CompactEmployeeDC>{ MobileSessionFacade.LoggedInCompactEmployee };
            
            return RedirectToActionPermanent("Main");
        }

        private ActionResult UpdateGroupBooking()
        {
            var dc = Model.SelectedServiceRecord;

            var group = OperationsService.GetServiceRecordGroup(dc.GroupOid.Value);

            UpdateServiceRecordGroup(group);
            var employeeCount = Model.SelectedEmployees.Count;
            var customerCount = Model.SelectedSupportConcepts.Count;

            group.EmployeeCount = employeeCount;
            group.CustomerCount = customerCount;

            var roundDuration = true;
            var minuteInterval = 0;

            CompactOrganisationDC org = null;

            var cb2scOids = new List<long>();

            foreach(var scdc in Model.SelectedSupportConcepts)
            {
                if(scdc.CostBearerRelations.Count > 0)
                {
                    cb2scOids.Add(scdc.CostBearerRelations.ElementAt(0).CostBearer2SupportConceptOid.Value);

                    if(org == null)
                    {
                        org = scdc.CostBearerRelations.ElementAt(0).CostBearer;
                        if(org != null)
                        {
                            minuteInterval = org.ActualMinuteIntervall;
                        }
                    }
                    else
                    {
                        if(scdc.CostBearerRelations.ElementAt(0).CostBearer == null || !org.Equals(scdc.CostBearerRelations.ElementAt(0).CostBearer))
                        {
                            roundDuration = false;
                        }
                    }
                }
            }

            var duration = (decimal) (Model.NewServiceRecord.End.Value - Model.NewServiceRecord.Start.Value).TotalMinutes;

            var lRoundedDuration = duration;
            decimal groupDuration;
            decimal roundedDuration;

            var gd = OperationsService.CalculateGroupDuration2(customerCount, employeeCount, duration, cb2scOids.ToArray());

            if(gd != null)
            {
                groupDuration = gd.TotalDuration;
                roundedDuration = gd.SingleDuration;
            }
            else
            {
                if(minuteInterval > 0 && roundDuration)
                {
                    lRoundedDuration = duration % minuteInterval != 0 ? duration + (minuteInterval - duration % minuteInterval) : duration;
                }

                groupDuration = lRoundedDuration;
                roundedDuration = Math.Round(groupDuration / Model.SelectedSupportConcepts.Count, 0 , MidpointRounding.AwayFromZero);
            }

            Model.NewServiceRecord.RoundedDuration = roundedDuration;
            Model.NewServiceRecord.GroupRoundedDuration = groupDuration;

            group.Notice = Model.NewServiceRecord.Notice;
            group.Notice2 = Model.NewServiceRecord.Notice2;
            group.Notice3 = Model.NewServiceRecord.Notice3;
            group.Notice4 = Model.NewServiceRecord.Notice4;
            group.Notice5 = Model.NewServiceRecord.Notice5;
            group.RoundedDuration = groupDuration;
            group.StartDate = Model.NewServiceRecord.Start;
            group.EndDate = Model.NewServiceRecord.End;

            foreach(var item in group.ServiceRecordList)
            {
                item.Notice = Model.NewServiceRecord.Notice;
                item.Notice2 = Model.NewServiceRecord.Notice2;
                item.Notice3 = Model.NewServiceRecord.Notice3;
                item.Notice4 = Model.NewServiceRecord.Notice4;
                item.Notice5 = Model.NewServiceRecord.Notice5;
                item.End = Model.NewServiceRecord.End;
                item.Start = Model.NewServiceRecord.Start;
                item.RoundedDuration = roundedDuration;
                item.DistanceInMeter = Model.NewServiceRecord.DistanceInMeter;
                item.ServiceDescription = Model.NewServiceRecord.ServiceDescription;

                item.ServiceRecordFormat = Model.NewServiceRecord.ServiceRecordFormat;
                item.DurationInStunden = Model.NewServiceRecord.DurationInStunden;

                item.ServiceDescription = item.ServiceDescription ?? Model.NewServiceRecord.ServiceDescription;

                item.GroupEmployeeCount = group.EmployeeCount;
                item.GroupPersonCount = group.CustomerCount;
                item.GroupOid = Model.NewServiceRecord.GroupOid;
                item.GroupRoundedDuration = groupDuration;

                if(item.CostBearer != null && item.CostBearer.CostBearerOid == null && item.SupportConcept != null && item.SupportConcept.CostBearerList.Count > 0)
                {
                    item.CostBearer.CostBearerOid = item.SupportConcept.CostBearerList[0].CostBearerOid;
                }
            }

            if(Model.NewServiceRecord.GroupOid.HasValue)
            {
                OperationsService.UpdateServiceRecordGroup(group);
            }

            Model.NewServiceRecord        = null;
            Model.SelectedServiceRecord   = null;
            Model.SelectedSupportConcepts = new List<SupportConceptDC>();
            Model.SelectedEmployees       = new List<CompactEmployeeDC>();

            ResetGroupBookingMode(false);
            Model.IsInEditingMode = false;

            return RedirectToActionPermanent("Main");
        }

        private IEnumerable<ServiceRecordDC> CalculateGroupBookingDuration(int pEmployeeCount, int pCustomerCount, ICollection<long> cb2ScOids)
        {
            var compactSupportConcepts = CustomerServiceImp.GetCompactSupportConcepts((from sc in Model.SelectedSupportConcepts where sc.SupportConceptOid != null select sc.SupportConceptOid.Value).ToList(), GetUser().Employee.EmployeeOid);

            var nodes = (from supportConcept in Model.SelectedSupportConcepts let cb = supportConcept.CostBearerRelations.FirstOrDefault(f => cb2ScOids.Contains(f.CostBearer2SupportConceptOid.Value)) let sc = compactSupportConcepts.FirstOrDefault(f => f.SupportConceptOid == supportConcept.SupportConceptOid) where cb != null && sc != null select SupportConceptService.CreateFlatSupportConceptItem(sc, CustomerService.LoadOrganisationCompact(cb.CostBearer.OrganisationOid))).ToList();

            var list = new List<ServiceRecordDC>();
            foreach(var node in nodes)
            {
                var sc = CloneServiceRecordForGroupBooking(Model.NewServiceRecord);

                if(Model.NewServiceRecord.RoundedDuration == 0)
                {
                    if(Model.NewServiceRecord.Start.HasValue && Model.NewServiceRecord.End.HasValue)
                    {
                        var minutes = Model.NewServiceRecord.End.Value.Subtract(Model.NewServiceRecord.Start.Value).TotalMinutes;

                        Model.NewServiceRecord.RoundedDuration = (decimal)minutes;
                    }
                }

                sc.GroupRoundedDuration = Model.NewServiceRecord.RoundedDuration;

                sc.CostBearer2SupportConceptOid = node.SupportConceptTreeNodeDC.SupportConceptCostBearerRelDC.CostBearer2SupportConceptOid;

                sc.SupportConcept = node.SupportConceptTreeNodeDC.SupportConcept;

                sc.CostBearer = node.SupportConceptTreeNodeDC.CostBearer;

                sc.Customer = node.SupportConceptTreeNodeDC.Customer;

                sc.GroupEmployeeCount = pEmployeeCount;

                sc.GroupPersonCount = pCustomerCount;

                list.Add(sc);
            }

            var roundDuration = false;
            var minuteInterval = 0;
            string calcdId = null;
            var lastMinuteInterval = -1;

            if(Model.SelectedServiceDescriptionOid.HasValue && IsBillable(Model.SelectedServiceDescriptionOid.Value, Model.GetServiceDesctiptions()))
            {
                roundDuration = true;

                foreach(var org in from dc in Model.SelectedSupportConcepts where dc.CostBearerRelations.Count > 0 select dc.CostBearerRelations.First().CostBearer)
                {
                    if(org != null)
                    {
                        minuteInterval = org.ActualMinuteIntervall;

                        if(lastMinuteInterval == -1)
                        {
                            lastMinuteInterval = minuteInterval;
                            calcdId = org.CostBearerID;
                        }
                        else if(lastMinuteInterval != minuteInterval)
                        {
                            roundDuration = false;
                        }
                    }
                    else if(minuteInterval >= 0)
                    {
                        roundDuration = false;
                    }
                    else
                    {
                        minuteInterval = 0;
                    }
                }
            }

            var duration = Model.NewServiceRecord.RoundedDuration;
            var totalDuration = duration;

            var groupDuration = OperationsService.CalculateGroupDuration2(pCustomerCount, pEmployeeCount, Model.NewServiceRecord.RoundedDuration, nodes.Select(s => s.SupportConceptTreeNodeDC.SupportConceptCostBearerRelDC.CostBearer2SupportConceptOid.Value).ToArray());

            if(groupDuration != null)
            {
                Model.NewServiceRecord.GroupRoundedDuration = groupDuration.TotalDuration;
                Model.NewServiceRecord.RoundedDuration = groupDuration.SingleDuration;
            }
            else
            {
                if(minuteInterval > 0 && roundDuration)
                {
                    var calc = Calculations.GetInstance(calcdId);
                    totalDuration = calc.GetRoundedDuration(minuteInterval, duration);
                }

                Model.NewServiceRecord.RoundedDuration = Math.Round(totalDuration / pCustomerCount, 0, MidpointRounding.AwayFromZero);
                Model.NewServiceRecord.GroupRoundedDuration = totalDuration;
            }

            return list;
        }
        
        private void UpdateServiceRecordGroup(ServiceRecordGroupDC pGroupDC)
        {
            var newCount = 0;

            foreach(var serviceRecord in pGroupDC.ServiceRecordList)
            {
                if(!serviceRecord.ServiceRecordOid.HasValue)
                {
                    newCount++;
                }
            }

            if(newCount == pGroupDC.ServiceRecordList.Count)
            {
                return;
            }

            var dcsToChange = new List<ServiceRecordDC>();
            var oldSCs = new Dictionary<long, CompactSupportConceptDC>();
            var oldEmps = new Dictionary<long, CompactEmployeeDC>();
            var newKeys = new Dictionary<string, string>();

            foreach(var sc in Model.SelectedSupportConcepts)
            {
                foreach(var emp in Model.SelectedEmployees)
                {
                    var key = emp.EmployeeOid + "_" + sc.SupportConceptOid;
                    if(sc.CostBearerRelations != null && sc.CostBearerRelations.Count > 0)
                    {
                        var costBearer2SupportConceptOid = sc.CostBearerRelations.ElementAt(0).CostBearer2SupportConceptOid;
                        if(costBearer2SupportConceptOid != null)
                        {
                            key += "_" + costBearer2SupportConceptOid.Value;
                        }
                        
                        newKeys.Add(key, key);
                    }
                }
            }

            foreach(var item in pGroupDC.ServiceRecordList)
            {
                var key = item.Employee.EmployeeOid + "_" + item.SupportConcept.SupportConceptOid;
                if(item.CostBearer2SupportConceptOid.HasValue)
                {
                    key += "_" + item.CostBearer2SupportConceptOid.Value;
                }

                if(newKeys.ContainsKey(key))
                {
                    newKeys.Remove(key);
                }
                else
                {
                    dcsToChange.Add(item);
                }

                if(!oldEmps.ContainsKey(item.Employee.EmployeeOid))
                {
                    oldEmps.Add(item.Employee.EmployeeOid, item.Employee);
                }

                if(!oldSCs.ContainsKey(item.SupportConcept.SupportConceptOid))
                {
                    oldSCs.Add(item.SupportConcept.SupportConceptOid, item.SupportConcept);
                }
            }

            if(newKeys.Count != 0 || dcsToChange.Count != 0)
            {
                if(newKeys.Count > 0)
                {
                    foreach(var sc in Model.SelectedSupportConcepts)
                    {
                        foreach(var emp in Model.SelectedEmployees)
                        {
                            var key = emp.EmployeeOid + "_" + sc.SupportConceptOid;

                            if(sc.CostBearerRelations != null && sc.CostBearerRelations.Count > 0)
                            {
                                key += "_" + sc.CostBearerRelations.ElementAt(0).CostBearer2SupportConceptOid;
                            }

                            if(!newKeys.ContainsKey(key))
                            {
                                continue;
                            }

                            ServiceRecordDC newServiceRecord;
                            if(dcsToChange.Count > 0)
                            {
                                newServiceRecord = dcsToChange[0];
                                dcsToChange.Remove(newServiceRecord);
                            }
                            else
                            {
                                newServiceRecord = CloneServiceRecordForGroupBooking(Model.NewServiceRecord);
                                pGroupDC.ServiceRecordList.Add(newServiceRecord);
                            }

                            newServiceRecord.Employee = emp;
                            newServiceRecord.SupportConcept = CustomerService.LoadCompactSupportConceptDC(sc.SupportConceptOid.Value, null);
                            newServiceRecord.CostBearer = sc.CostBearerRelations.ElementAt(0).CostBearer;
                            newServiceRecord.Customer = sc.Customer;
                            newServiceRecord.CostBearer2SupportConceptOid = sc.CostBearerRelations.ElementAt(0).CostBearer2SupportConceptOid;
                        }
                    }
                }

                foreach(var item in dcsToChange)
                {
                    pGroupDC.ServiceRecordList.Remove(item);
                }
            }
        }

        [Authorize]
        public ActionResult SaveZeiterfassungAfterCrash(string pDatum, string pStartDate, string pEndDate, string pDuration, string pNotice, string pServiceDescription, string pNotice2, string pNotice3, string pNotice4, string pNotice5, string pEndDate2)
        {
            try
            {
                if (Model == null)
                {
                    return RedirectToActionPermanent("Index", "Login");
                }

                log.Info($"saveZeiterfassungAfterCrash: datum:{pDatum};start:{pStartDate};ende:{pEndDate};dauer:{pDuration};doku:{pNotice};doku2:{pNotice2};doku3:{pNotice3};doku4:{pNotice4};doku5:{pNotice5};pEndDate2:{pEndDate2}");

                if (string.IsNullOrEmpty(pDatum))
                {
                    return View("Main", Model);
                }

                var selectedCostbearerSCRelOid = Model.CostBearer2SupportConceptOid < 1 ? null : Model.CostBearer2SupportConceptOid;
                var datum = Convert.ToDateTime(pDatum);
                var start = pStartDate;
                var ende = pEndDate;
                var dauer = 0;

                var enddatum = pEndDate2 != "" ? Convert.ToDateTime(pEndDate2) : datum;

                if (datum > enddatum)
                {
                    enddatum = datum;
                }

                if (!string.IsNullOrEmpty(pDuration))
                {
                    int.TryParse(pDuration, out dauer);
                }

                var doku = pNotice;
                var doku2 = pNotice2;
                var doku3 = pNotice3;
                var doku4 = pNotice4;
                var doku5 = pNotice5;

                var zeitenFeld = new DateTime[2];

                if (start == string.Empty && ende == string.Empty)
                {
                    zeitenFeld[0] = new DateTime(datum.Year, datum.Month, datum.Day, 0, 0, 1);

                    if (enddatum == datum)
                    {
                        zeitenFeld[1] = new DateTime(datum.Year, datum.Month, datum.Day, 0, 0, 1).AddMinutes(dauer);
                    }
                    else
                    {
                        zeitenFeld[1] = new DateTime(enddatum.Year, enddatum.Month, enddatum.Day, 0, 0, 1).AddMinutes(dauer);
                    }
                }
                else
                {
                    zeitenFeld = enddatum == datum ? ConvertRecordTimes(start, ende, datum, dauer) : ConvertRecordTimesWithEndDate(start, ende, datum, enddatum, dauer);
                }

                if (dauer == 0 || zeitenFeld[1] != zeitenFeld[0])
                {
                    dauer = (int)(zeitenFeld[1] - zeitenFeld[0]).TotalMinutes;
                }
              
                if (Model.NewServiceRecord == null)
                {
                    return RedirectToActionPermanent("Main");
                }

                Model.NewServiceRecord.Goals = Model.SelectedGoals;
                Model.NewServiceRecord.Start = zeitenFeld[0];
                Model.NewServiceRecord.End = zeitenFeld[1];

                if (Model.Employee.EmployeeOid != null)
                {
                    Model.NewServiceRecord.Employee = Model.SelectedEmployee ?? MobileSessionFacade.LoggedInCompactEmployee;
                    
                    var sc = Model.SupportConcepts.FirstOrDefault(fod => fod.CostBearerRelations.Any(a => a.CostBearer2SupportConceptOid.HasValue && a.CostBearer2SupportConceptOid.Value.Equals(selectedCostbearerSCRelOid)));
                    if (sc != null)
                    {
                        if (sc.SupportConceptOid != null)
                        {
                            Model.NewServiceRecord.SupportConcept = CustomerService.LoadCompactSupportConceptDC(sc.SupportConceptOid.Value, Model.Employee.EmployeeOid);
                        }

                        Model.NewServiceRecord.Customer = sc.Customer;
                        var cb2ScRel = sc.CostBearerRelations.First(f => f.CostBearer2SupportConceptOid.HasValue && f.CostBearer2SupportConceptOid.Equals(selectedCostbearerSCRelOid));
                        Model.NewServiceRecord.CostBearer = cb2ScRel.CostBearer;
                        var intervall = Model.NewServiceRecord.CostBearer.ActualMinuteIntervall;

                        if (intervall > 0)
                        {
                            Model.NewServiceRecord.RoundedDuration = dauer % intervall != 0 ? dauer + (intervall - dauer % intervall) : dauer;
                        }
                        else
                        {
                            Model.NewServiceRecord.RoundedDuration = dauer;
                        }

                        Model.NewServiceRecord.CostBearer2SupportConceptOid = selectedCostbearerSCRelOid;
                    }
                    else
                    {
                        Model.NewServiceRecord.RoundedDuration = dauer;
                    }
                }

                Model.NewServiceRecord.Notice = doku;

                if (doku2 != "")
                {
                    Model.NewServiceRecord.Notice2 = doku2;
                }
                if (doku3 != "")
                {
                    Model.NewServiceRecord.Notice3 = doku3;
                }
                if (doku4 != "")
                {
                    Model.NewServiceRecord.Notice4 = doku4;
                }
                if (doku5 != "")
                {
                    Model.NewServiceRecord.Notice5 = doku5;
                }

                var serviceDescOid = 0L;

                if (Model.SelectedServiceDescriptionOid.HasValue)
                {
                    serviceDescOid = Model.SelectedServiceDescriptionOid.Value;
                }
                else if (!string.IsNullOrEmpty(pServiceDescription))
                {
                    serviceDescOid = Convert.ToInt64(pServiceDescription);
                }

                if (serviceDescOid > 0)
                {
                    Model.NewServiceRecord.ServiceDescription = OperationsService.GetServiceDescription(serviceDescOid);
                }

                Model.NewServiceRecord.IP = Request.UserHostAddress;
                Model.NewServiceRecord.InsertedOn = DateTime.Now;
                Model.NewServiceRecord.InsUser = $"{MobileSessionFacade.LoggedInEmployee.FirstName} {MobileSessionFacade.LoggedInEmployee.LastName}";
                Model.NewServiceRecord.IsCreatedInMobileClient = true;

                OperationsService.InsertNewServiceRecords(new List<ServiceRecordDC> { Model.NewServiceRecord });

                Model.NewServiceRecord = new ServiceRecordDC();

                if (selectedCostbearerSCRelOid.HasValue)
                {
                    Model.ServiceRecords = OperationsService.FindServiceRecordsForLastDays(selectedCostbearerSCRelOid, Model.Zeitraum, Model.Employee.EmployeeOid).ToList();
                }

            }
            catch (Exception e)
            {
				log.Error(e.Message, e);
                Model.ErrorWert = 2;
                //log.Error(e.Message, e);
            }

            return RedirectToActionPermanent("Main");
        }

        [HttpPost]
        [Authorize]
        public ActionResult SelectSupportConcept(FormCollection formCollection)
        {
            if(Model == null)
            {
                return RedirectToActionPermanent("Index", "Login");
            }

		    long? cb2scOid = Convert.ToInt64(formCollection["CostBearer2SupportConceptOid"]);

		    Model.CostBearer2SupportConceptOid = cb2scOid;
		    Model.SelectedSupportConcept =
			    Model.SupportConcepts.FirstOrDefault(
				    f =>
					    f.CostBearerRelations.Any(
						    a => 
							    a.CostBearer2SupportConceptOid.HasValue &&
							    a.CostBearer2SupportConceptOid.Value.Equals(Model.CostBearer2SupportConceptOid)));

		    if(Model.SelectedSupportConcept != null)
            {
                Model.SelectedSupportConceptListObject = Model.SupportConceptListObjects.First(f => long.Parse(f.CostBearer2SupportConceptOid) == cb2scOid);

			    var details = OperationsService.GetSupportConceptTreeNodeDetailInfo(Model.SelectedSupportConcept.Customer.CustomerOid, Model.SelectedSupportConcept.SupportConceptOid, Model.CostBearer2SupportConceptOid);
		        
			    Model.ServiceCategories = details.ServiceAccountings.Count > 0
				    ? CreateServiceCategoryModels(details.ServiceAccountings.Select(sa => sa.ServiceDescription).ToList())
				    : CreateServiceCategoryModels(OperationsService.GetAllServiceDescriptions());

                Model.ServiceCategories = Model.ServiceCategories.Where(c => !c.OhneHilfeplan.HasValue || c.OhneHilfeplan.Value == AccountingvisibilityType.Beides || c.OhneHilfeplan.Value == AccountingvisibilityType.NurKlientenbezogen).ToList();                 
		    }
		    else if(cb2scOid == -2)
            {
                Model.SelectedSupportConceptListObject = Model.SupportConceptListObjects.First(f => f.CostBearer2SupportConceptOid.Equals(cb2scOid.ToString()));
			    Model.ServiceCategories = CreateServiceCategoryModels(OperationsService.GetAllServiceDescriptions());
                Model.ServiceCategories = Model.ServiceCategories.Where(c => !c.OhneHilfeplan.HasValue || c.OhneHilfeplan.Value == AccountingvisibilityType.Beides || c.OhneHilfeplan.Value == AccountingvisibilityType.NichtKlientenbezogen).ToList();
		    }
		    else if(cb2scOid == -1)
		    {
                Model.SelectedSupportConceptListObject = Model.SupportConceptListObjects.First(f => f.CostBearer2SupportConceptOid.Equals(cb2scOid.ToString()));
                Model.ServiceCategories.Clear();
		    }

			Model.Zeitraum = 7;
            LoadRecordsToModel();

			return RedirectToActionPermanent("Main");
	    }
		
        [HttpPost]
        [Authorize]
        public ActionResult DeleteServiceRecord(FormCollection formCollection)
        {
            if (Model == null)
            {
                return RedirectToActionPermanent("Index", "Login");
            }

            Model.ServiceRecordOidToDelete = long.Parse(formCollection["serviceRecordOidHolder"]);

            if (Model.ServiceRecordOidToDelete != null && Model.ServiceRecordOidToDelete > 0 && MobileSessionFacade.LoggedInUser.UserGroups.Any(a => a.Rights.Any(f => f.RightType.Equals(UserRightType.ServiceRecordView_Delete))))
            {
                var serviceRecordDC = Model.ServiceRecords.FirstOrDefault(f => f.ServiceRecordOid != null && f.ServiceRecordOid.Value.Equals(Model.ServiceRecordOidToDelete));
                var version = serviceRecordDC?.ServiceRecordVersion;

                if (version != null)
                {
                    OperationsService.DeleteServiceRecord(Model.ServiceRecordOidToDelete.Value, version.Value);

                    Model.ServiceRecords = Model.ServiceRecords.Where(sr => sr.ServiceRecordOid != null && !sr.ServiceRecordOid.Value.Equals(serviceRecordDC.ServiceRecordOid)).ToList();
                }
            }

            ResetGroupBookingMode(false);

            return RedirectToActionPermanent("Main");
        }

        public string SetRecordOidToDelete(long serviceRecordOid)
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            Model.ServiceRecordOidToDelete = serviceRecordOid;

            return _LeerzeichenFuerGetMethoden;
        }

        public string UpdateGoals(string pGoalOids)
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            var sc = Model.SelectedSupportConcept;
            if (sc == null)
            {
                return _LeerzeichenFuerGetMethoden;
            }

            var splitOids = pGoalOids.Split(';');
            var selectedGoalOids = splitOids.Select(long.Parse).ToList();

            var goals = sc.Goals.Where(w => w.ValueListEntryOid.HasValue && selectedGoalOids.Contains(w.ValueListEntryOid.Value)).ToList();

            Model.SelectedGoals = goals;

            return _LeerzeichenFuerGetMethoden;
        }

        public string SetServiceDescription(long pServiceDescriptionOid)
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            Model.SelectedServiceDescriptionOid = pServiceDescriptionOid;
            return _LeerzeichenFuerGetMethoden;
        }

        [HttpPost]
        [Authorize]
        public ActionResult LoadServiceRecords(FormCollection formCollection)
        {
            if (Model == null)
            {
                return RedirectToActionPermanent("Index", "Login");
            }

            var zeitraum = int.Parse(formCollection["Records"]);
            if (zeitraum < 0)
            {
                zeitraum = 7;
            }

            Model.Zeitraum = zeitraum;

            LoadRecordsToModel();

            return RedirectToActionPermanent("Main");
        }

        private void LoadRecordsToModel()
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return;
            }

            if (Model.Zeitraum < 0 || Model.CostBearer2SupportConceptOid.HasValue && Model.CostBearer2SupportConceptOid.Value == -1)
            {
                Model.ServiceRecords = new List<ServiceRecordDC>();
                return;
            }

            var records = OperationsService.FindServiceRecordsForLastDays(Model.CostBearer2SupportConceptOid < 1 ? null : Model.CostBearer2SupportConceptOid, Model.Zeitraum, Model.Employee.EmployeeOid);
            var recordsOhneDuplikate = new List<ServiceRecordDC>();

            foreach(var r in records.Where(r => !recordsOhneDuplikate.Any(a => a.GroupOid.HasValue && a.GroupOid.Value.Equals(r.GroupOid))))
            {
                recordsOhneDuplikate.Add(r);
            }

            Model.ServiceRecords = recordsOhneDuplikate;
        }

        public string SetSelectedServiceRecord(long? recordOid)
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            Model.SelectedServiceRecordOid = recordOid;

            if (recordOid == null)
            {
                Model.SelectedGoals = new List<ValueListEntryDC>();
            }
            else
            {
                var serviceRecordDC = Model.ServiceRecords.FirstOrDefault(f => f.ServiceRecordOid.HasValue && f.ServiceRecordOid.Value.Equals(Model.SelectedServiceRecordOid));
                if (serviceRecordDC != null)
                {
                    Model.SelectedServiceRecord = serviceRecordDC;
                    Model.SelectedGoals = serviceRecordDC.Goals;
                }
            }

            return _LeerzeichenFuerGetMethoden;
        }

        [HttpPost]
        [Authorize]
        public ActionResult SetSelectedGroupServiceRecord(FormCollection pFormCollection)
        {
            if(Model == null)
            {
                return RedirectToActionPermanent("Index", "Login");
            }

            long.TryParse(pFormCollection["hiddenElement"], out var recordOid);

            Model.SelectedServiceRecordOid = recordOid;
            
            Model.IsInGroupBookingMode = true;
            Model.IsInEditingMode = true;

            var serviceRecord = Model.ServiceRecords.FirstOrDefault(f => f.ServiceRecordOid == recordOid);
            var supportConcepts = new List<SupportConceptDC>();
            var employees = new List<CompactEmployeeDC>();

            Model.SelectedServiceRecord = serviceRecord;
            Model.SelectedSupportConcepts.Clear();
            Model.SelectedEmployees.Clear();
            Model.SelectedCostbearerRelOids.Clear();
            Model.SelectedConceptCostBearerRelations.Clear();

            var relationOids = new List<long>();

            if (serviceRecord?.GroupOid != null)
            {
                var serviceRecordGroup = OperationsService.GetServiceRecordGroup(serviceRecord.GroupOid.Value);

                if(serviceRecordGroup != null)
                {
                    employees.AddRangeIfElementsNotIn(serviceRecordGroup.ServiceRecordList.Select(s => s.Employee));
                    relationOids = serviceRecordGroup.ServiceRecordList.Select(s => s.CostBearer2SupportConceptOid.Value).ToList();
                    var costBearerRelations = CustomerService.GetSupportConceptCostBearerRelationsById(relationOids);

                    Model.SelectedConceptCostBearerRelations.AddRangeIfElementsNotIn(costBearerRelations);
                    
                    foreach(var rel in costBearerRelations)
                    {
                        var sc = CustomerService.LoadSupportConcept(rel.SupportConcept.SupportConceptOid);
                        var oid = sc.SupportConceptOid;

                        if(!supportConcepts.Any(a => a.SupportConceptOid.Equals(oid)))
                        {
                            supportConcepts.Add(sc);
                        }
                    }
                }
            }
            
            Model.SelectedCostbearerRelOids.AddRangeIfElementsNotIn(relationOids);

            Model.SelectedSupportConcepts = supportConcepts;
            Model.SelectedEmployees = employees;

            Model.ServiceCategories = CreateServiceCategoryModels(OperationsService.GetAllServiceDescriptions());

            return RedirectToActionPermanent("Main");
        }
        
        public string GetSelectedRecordInformation()
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            var result = _LeerzeichenFuerGetMethoden;

            if (Model.SelectedServiceRecordOid.HasValue)
            {
                result = SerializeObject(Model.ServiceRecords.First(f => f.ServiceRecordOid == Model.SelectedServiceRecordOid));
            }

            return result;
        }

        public string GetSelectedRecordInformationWithOid(long oid)
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            LoadRecordsToModel();

            return SerializeObject(Model.ServiceRecords.First(f => f.ServiceRecordOid == oid));
        }

        [Authorize]
        public string CheckRights(string von, string bis, bool inEditMode, string dateString, string startString, string endString)
        { 
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            log.Info($"CheckRights: von:{von};bis:{bis};inEditMode:{inEditMode};dateString:{dateString};startString:{startString};endString:{endString}");

            var startHoursDt = ConvertTimeStringToDateTime(startString);
            var endHoursDt = ConvertTimeStringToDateTime(endString);

            if (!DateTime.TryParse(dateString, out var date))
            {
                date = DateTime.Now.Date;
            }

            var startDt = date.AddHours(startHoursDt.Hour).AddMinutes(startHoursDt.Minute);
            var endDt = date.AddHours(endHoursDt.Hour).AddMinutes(endHoursDt.Minute);

            if (startDt > endDt)
            {
                return "StartGreaterEnd";
            }
            var dauer = (int)(endDt - startDt).TotalMinutes;

            if (dauer == 0)
            {
                startDt = startDt.AddSeconds(1);
                endDt = endDt.AddSeconds(1);
            }

            var checkSR = new ServiceRecordDC();
            if (inEditMode)
            {
                checkSR = Model.ServiceRecords.FirstOrDefault(f => f.ServiceRecordOid.HasValue && f.ServiceRecordOid.Value.Equals(Model.SelectedServiceRecordOid));
            }

            if (checkSR == null)
            {
                checkSR = new ServiceRecordDC();
            }

            checkSR.Goals = Model.SelectedGoals;

            checkSR.Start = startDt;
            checkSR.End = endDt;

            checkSR.IP = Request.UserHostAddress;

            checkSR.ServiceDescription = OperationsService.GetServiceDescription(Model.SelectedServiceDescriptionOid.Value);

            checkSR.Employee = Model.SelectedEmployee ?? MobileSessionFacade.LoggedInCompactEmployee;

            if (Model.SelectedEmployee != null && !Model.IsInGroupBookingMode)
            {
                var sc = Model.SupportConcepts.FirstOrDefault(fod => fod.CostBearerRelations.Any(a => a.CostBearer2SupportConceptOid.HasValue && a.CostBearer2SupportConceptOid.Value.Equals(Model.CostBearer2SupportConceptOid)));

                if (sc != null)
                {
                    if (sc.SupportConceptOid != null)
                    {
                        checkSR.SupportConcept = CustomerService.LoadCompactSupportConceptDC(sc.SupportConceptOid.Value, Model.Employee.EmployeeOid);
                    }

                    checkSR.Customer = sc.Customer;
                    var cb2ScRel = sc.CostBearerRelations.First(f => f.CostBearer2SupportConceptOid.HasValue && f.CostBearer2SupportConceptOid.Equals(Model.CostBearer2SupportConceptOid));
                    checkSR.CostBearer = cb2ScRel.CostBearer;
                    var intervall = checkSR.CostBearer.ActualMinuteIntervall;

                    if (intervall > 0)
                    {
                        checkSR.RoundedDuration = dauer % intervall != 0 ? dauer + (intervall - dauer % intervall) : dauer;
                    }

                    checkSR.CostBearer2SupportConceptOid = Model.CostBearer2SupportConceptOid;
                }
            }

            var mandator                      = OperationsService.GetMandator();
            var settings                      = mandator.Settings ?? string.Empty;
            var splitSettings                 = settings.Split(';');
            var maxDaysEditSRsAllowedSetting  = splitSettings.ToList().FirstOrDefault(f => f.Contains("MaxDaysEditServiceRecordsAllowed"));
            var maxDaysEditSRsAllowed         = maxDaysEditSRsAllowedSetting != null ? int.Parse(maxDaysEditSRsAllowedSetting.Split('=')[1]) : 0;
            var limitFuerZeiterfassungSetting = splitSettings.ToList().FirstOrDefault(f => f.Contains("AnzTageZeiterfassErfolgt"));
            var limitFuerZeiterfassung        = limitFuerZeiterfassungSetting != null ? int.Parse(limitFuerZeiterfassungSetting.Split('=')[1]) : 0;

            if (MobileSessionFacade.CheckForUserRight(UserRightType.ServiceRecord_AllowEditAfterMaxDaysInNextMonth))
            {
                maxDaysEditSRsAllowed = -1;
            }

            SupportConceptStatisticsDC stats = null;

            if (Model.CostBearer2SupportConceptOid != null && Model.CostBearer2SupportConceptOid > 0)
            {
                stats = OperationsService.CreateSupportConceptStatistics(Model.CostBearer2SupportConceptOid.Value, DateTime.Now);
            }

            var employees = new List<long> {checkSR.Employee.EmployeeOid};

            var validationResults = new List<ServiceRecord2Validation>();

            checkSR.ServiceRecordFormat = ServiceRecordFormate.OriginaleZeiterfassung;
            checkSR.DurationInStunden = ZeiterfassungsDauer.Minuten;

            string dateRangeString = null;

            if(Model.IsInGroupBookingMode)
            {
                if (checkSR.GroupOid.HasValue)
                {
                    var serviceRecordGroup = OperationsService.GetServiceRecordGroup(checkSR.GroupOid.Value);

                    serviceRecordGroup.ServiceRecordList.DoForEach(sr => employees.AddIfNotIn(sr.Employee.EmployeeOid));
                }
                else
                {
                    Model.SelectedEmployees.DoForEach(e => employees.AddIfNotIn(e.EmployeeOid));
                }

                var cb2scOids = (from scDc in Model.SelectedSupportConcepts where scDc.CostBearerRelations != null && scDc.CostBearerRelations.Count > 0 select scDc.CostBearerRelations[0].CostBearer2SupportConceptOid.Value).ToList();

                var relations = CustomerService.GetSupportConceptCostBearerRelationsById(cb2scOids);

                foreach (var rel in relations)
                {
                    var sr = CloneServiceRecordForGroupBooking(checkSR);

                    sr.SupportConcept = rel.SupportConcept;
                    sr.CostBearer = rel.CostBearer;
                    sr.CostBearer2SupportConceptOid = rel.CostBearer2SupportConceptOid;
                    

                    var result = OperationsService.ValidateServiceRecord(sr, null, maxDaysEditSRsAllowed, employees, cb2scOids);
                    dateRangeString = rel.DateRangeString;

                    validationResults.Add(new ServiceRecord2Validation(sr, result, dateRangeString));
                }
            }
            else
            {
                if (Model.SelectedSupportConcept != null)
                {
                    var node = CreateFlatSupportConceptItem(CustomerService.LoadCompactSupportConceptDC(Model.SelectedSupportConcept.SupportConceptOid.Value, Model.SelectedEmployee.EmployeeOid), null);
                    dateRangeString = node?.SupportConceptTreeNodeDC != null ? node.SupportConceptTreeNodeDC.SupportConceptCostBearerRelDC.DateRangeString : "";
                }

                var result = OperationsService.ValidateServiceRecordEntry(checkSR, stats, maxDaysEditSRsAllowed, checkSR.GroupOid.HasValue, employees);
                validationResults.Add(new ServiceRecord2Validation(checkSR, result, dateRangeString ?? ""));
            }

            var allowOverlappingFLS            = MobileSessionFacade.CheckForUserRight(UserRightType.ServiceRecord_AllowCreateOverlappingFLS);
            var allowOverlappingFLSForEmployee = MobileSessionFacade.CheckForUserRight(UserRightType.ServiceRecord_AllowCreateOverlappingFLSForEmployee);
            var allowMoreFLSThanApproved       = MobileSessionFacade.CheckForUserRight(UserRightType.ServiceRecord_AllowCreateMoreFLSThanApproved);
            var bookAfterSettlementInvoice     = MobileSessionFacade.CheckForUserRight(UserRightType.BookServiceRecordAfterSettlementInvoice);

            var newResult = new ValidationResult();
            var exitLoop  = false;
            foreach (var sr2v in validationResults)
            {
                if(exitLoop)
                {
                    break;
                }

                foreach (var vr in sr2v.ValidationResults)
                {
                    if (exitLoop)
                    {
                        break;
                    }

                    switch(vr.ResultType)
                    {
                        case ServiceRecordOverlapping:
                            newResult.Message += "An dem gewählten Datum '" + von + "' existiert bereits ein Eintrag (" + vr.Message + " bei Klient/in " + vr.CustomerName + ").<br /><br />";
                            newResult.KannTrotzdemGespeichertWerden = allowOverlappingFLS;
                            
                            exitLoop = !allowOverlappingFLS;

                            break;
                        case EmployeeOverlapping:
                            newResult.Message += "An dem gewählten Datum " + von + " existiert bereits ein Eintrag von " + vr.EmployeeName + " (" + vr.Message + ").<br /><br />";
                            newResult.KannTrotzdemGespeichertWerden = allowOverlappingFLSForEmployee;
                            exitLoop = !allowOverlappingFLSForEmployee;
                            

                            break;
                        case OutsideOfSupportConcept:
                            newResult.Message += "Das gewählte Datum " + von.Substring(0, 10) + " liegt außerhalb des Zeitraumes des gewählten Hilfeplans (" + sr2v.HilfePlanZeitraum + ").<br /><br />";
                            newResult.KannTrotzdemGespeichertWerden = false;
                            
                            exitLoop = true;
                            
                            break;
                        case ApprovedFLSOverspending:
                            var klient = "diesen Hilfeplan";
                            if (!string.IsNullOrEmpty(vr.CustomerName))
                            {
                                klient = "Klient/in " + vr.CustomerName;
                            }

                            var msg = "Die für " + klient + " genehmigten FLS (" + vr.ApprovedHours + ") werden mit diesem Eintrag überschritten. (" + vr.HoursNew + ").";
                            
                            newResult.Message += msg + "<br /><br />";
                            newResult.KannTrotzdemGespeichertWerden = allowMoreFLSThanApproved;

                            exitLoop = !allowMoreFLSThanApproved;
                            
                            break;
                        case OutOfEditLimit:
                            newResult.Message += "Sie können keine neuen Leistungen für den " + von + " dokumentieren, da bereits der " + maxDaysEditSRsAllowed + ". des nachfolgenden Monats überschritten ist.<br /><br />";
                            exitLoop = true;
                            newResult.KannTrotzdemGespeichertWerden = false;

                            break;
                        case Error:
                            newResult.Message += "Beim Speichern ist ein Fehler aufgetreten.<br /><br />";
                            exitLoop = true;
                            newResult.KannTrotzdemGespeichertWerden = false;

                            break;
                        case SettlementInvoiceAlreadyExisting:
                            var klient2 = "diesen Hilfeplan";
                            if(!string.IsNullOrEmpty(vr.CustomerName))
                            {
                                klient2 = "Klient/in " + vr.CustomerName;
                            }

                            newResult.KannTrotzdemGespeichertWerden = bookAfterSettlementInvoice;
                            exitLoop = !bookAfterSettlementInvoice;
                            
                            if (bookAfterSettlementInvoice)
                            {
                                newResult.Message += "Es existiert bereits eine Spitzabrechnung für " + klient2 + ". Um diesen Eintrag zu berücksichtigen, muss eventuell eine neue Spitzabrechnung erstellt werden.<br /><br />";
                            }
                            else
                            {
                                newResult.Message += "Sie können den Eintrag nicht bearbeiten, da bereits eine Spitzabrechnung für " + klient2 + "<br /><br />";
                            }

                            break;
                        case FristAbgelaufen:
                            var intervall = "einem Tag";
                            if (limitFuerZeiterfassung != 1)
                            {
                                intervall = "" + limitFuerZeiterfassung + " Tagen";
                            }

                            newResult.Message += "Sie können keine neuen Leistungen für den " + von + " dokumentieren, da die Zeiterfassung innerhalb von " + intervall + " erfolgen muss.<br /><br />";
                            exitLoop = true;
                            newResult.KannTrotzdemGespeichertWerden = false;

                            break;
                        case Custom:
                            newResult.Message += vr.Message + "<br /><br />";

                            exitLoop = true;
                            newResult.KannTrotzdemGespeichertWerden = false;
                            break;
                    }
                }
            }

            if (!string.IsNullOrEmpty(newResult.Message))
            {
                newResult.Message += newResult.KannTrotzdemGespeichertWerden ? "<br />Möchten Sie trotzdem speichern?<br /><br />" : "<br />Speichern nicht möglich.<br /><br />";
            }

            Model.NewServiceRecord = new ServiceRecordDC();

            return SerializeObject(newResult);
        }

        public bool CheckRightsAfterCrash(string von, string bis, bool inEditMode, string dateString, string startString, string endString, long costbearerOId, string leistung)
        {
            if (Model == null)
            {
                return false;
            }

			log.Info($"CheckRightsAfterCrash: von:{von};bis:{bis};inEditMode:{inEditMode};dateString:{dateString};startString:{startString};endString:{endString}");

            var date = DateTime.Now.Date;

            var startHoursDt = ConvertTimeStringToDateTime(startString);
            var endHoursDt = ConvertTimeStringToDateTime(endString);

            if (!DateTime.TryParse(dateString, out date))
            {
                date = DateTime.Now.Date;
            }

            var startDt = date.AddHours(startHoursDt.Hour).AddMinutes(startHoursDt.Minute);
            var endDt = date.AddHours(endHoursDt.Hour).AddMinutes(endHoursDt.Minute);

            if (startDt > endDt)
            {
                Model.ErrorWert = 5;
                return false;
            }

            var dauer = (int)(endDt - startDt).TotalMinutes;

            if (dauer == 0)
            {
                startDt = startDt.AddSeconds(1);
                endDt = endDt.AddSeconds(1);
            }

            var checkSR = new ServiceRecordDC
            {
                Goals = Model.SelectedGoals,
                Start = startDt,
                End = endDt
            };

            if (Model.Employee.EmployeeOid != null)
            {
                checkSR.Employee = MobileSessionFacade.LoggedInCompactEmployee;

                _Model.CostBearer2SupportConceptOid = costbearerOId;

                var sc = Model.SupportConcepts.FirstOrDefault(fod => fod.CostBearerRelations.Any(a => a.CostBearer2SupportConceptOid.HasValue && a.CostBearer2SupportConceptOid.Value.Equals(Model.CostBearer2SupportConceptOid)));

                if (sc != null)
                {
                    if (sc.SupportConceptOid != null)
                    {
                        checkSR.SupportConcept = CustomerService.LoadCompactSupportConceptDC(sc.SupportConceptOid.Value, Model.Employee.EmployeeOid);
                    }

                    checkSR.Customer = sc.Customer;
                    var cb2ScRel = sc.CostBearerRelations.First(f => f.CostBearer2SupportConceptOid.HasValue && f.CostBearer2SupportConceptOid.Equals(Model.CostBearer2SupportConceptOid));
                    checkSR.CostBearer = cb2ScRel.CostBearer;
                    var intervall = checkSR.CostBearer.ActualMinuteIntervall;

                    if (intervall > 0)
                    {
                        checkSR.RoundedDuration = dauer % intervall != 0 ? dauer + (intervall - (dauer % intervall)) : dauer;
                    }

                    checkSR.CostBearer2SupportConceptOid = Model.CostBearer2SupportConceptOid;
                }
            }

            checkSR.IP = Request.UserHostAddress;
            checkSR.InsertedOn = DateTime.Now;
            checkSR.InsUser = $"{MobileSessionFacade.LoggedInEmployee.FirstName} {MobileSessionFacade.LoggedInEmployee.LastName}";

            if (leistung != null || leistung == "")
            {
                Model.SelectedServiceDescriptionOid = Convert.ToInt64(leistung);
            }
            else
            {
                Model.SelectedServiceDescriptionOid = 6;
            }

            checkSR.ServiceDescription = OperationsService.GetServiceDescription(Model.SelectedServiceDescriptionOid.Value);

            var man = OperationsService.GetMandator();
            var s = man.Settings ?? string.Empty;
            var einzeln = s.Split(';');
            var g = einzeln.ToList().FirstOrDefault(f => f.Contains("MaxDaysEditServiceRecordsAllowed"));
            var t = g != null ? int.Parse(g.Split('=')[1]) : 0;

            SupportConceptStatisticsDC stats = null;

            if (Model.CostBearer2SupportConceptOid != null && Model.CostBearer2SupportConceptOid > 0)
            {
                stats = OperationsService.CreateSupportConceptStatistics(Model.CostBearer2SupportConceptOid.Value, DateTime.Now);
            }

            var result = OperationsService.ValidateServiceRecordEntry(checkSR, stats, t, false, new List<long> { checkSR.Employee.EmployeeOid });

            if (result.Count != 0)
            {
                if (result[0].EndDate.Day <= date.Day && result[0].EndDate.Year <= date.Year && result[0].EndDate.Month <= date.Month ||
                    result[0].EndDate.Day >= date.Day && result[0].EndDate.Year <= date.Year && result[0].EndDate.Month <= date.Month ||
                    result[0].EndDate.Day <= date.Day && result[0].EndDate.Year <= date.Year && result[0].EndDate.Month >= date.Month ||
                    result[0].EndDate.Day >= date.Day && result[0].EndDate.Year <= date.Year && result[0].EndDate.Month >= date.Month)
                {
                    Model.ErrorWert = 4;
                    return false;
                }

                Model.ErrorWert = 3;
                return false;
            }

            Model.ErrorWert = 1;
            return true;
        }

        public string SetViewMode()
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            Model.SelectedCustomer = null;
            Model.SelectedCustomerOid = null;

            return _LeerzeichenFuerGetMethoden;
        }

        public string GetSelectedSupportConceptCustomer()
        {
            return Model.SelectedSupportConcept == null ? "NoSupportConceptSelected" : SerializeObject(Model.SelectedSupportConcept.Customer.CustomerOid);
        }

        public string GetSelectedCustomer(long customerOid)
        {
            if (Model == null)
            {
                return "SessionTimeout";
            }

            Model.SelectedCustomer = CustomerService.LoadCustomer(customerOid);
            Model.SelectedCustomerOid = customerOid;
            
            return SerializeObject(GetJSONCustomer(Model.SelectedCustomer));
        }

        public string SetServiceRecordEmployee(long employeeOid)
        {
            try
            {
                if (Model == null)
                {
                    RedirectToActionPermanent("Index", "Login");
                    return _LeerzeichenFuerGetMethoden;
                }

                Model.SelectedEmployee = MainModel.AllEmployees.First(f => f.EmployeeOid.Equals(employeeOid));
                return _LeerzeichenFuerGetMethoden;
            }
            catch (Exception e)
            {
                log.Info("Error in SetServiceRecordEmployee:");
                log.Error(e.Message, e);
                if (MainModel.AllEmployees == null)
                {
                    log.Info("Weitere Infos: AllEmployees = null!");
                }
                else
                {
                    log.Info($"Weitere Infos: AllEmployees enthält {MainModel.AllEmployees.Count} Elemente: ");
                    StringBuilder sb = new StringBuilder();
                    foreach (var ce in MainModel.AllEmployees)
                    {

                        if (sb.Length > 0)
                        {
                            sb.Append(",");
                        }

                        sb.Append(ce.EmployeeOid);

                    }
                    log.Info(sb.ToString());
                }
                throw e;
            }
        }

        public string CheckToken(string token)
        {
            if(token != null && token.Equals("abcd"))
            {
                return SerializeObject("localhost;demo");
            }

            return _LeerzeichenFuerGetMethoden;
        }

        // Gruppenbuchungen
        [HttpPost]
        [Authorize]
        public ActionResult SetGroupBookingMode(FormCollection pFormCollection)
        {
            if (Model == null)
            {
                return RedirectToActionPermanent("Index", "Login");
            }

            var isInGroupBookingMode = "true,false" == pFormCollection["IsInGroupBookingMode"];

            ResetGroupBookingMode(isInGroupBookingMode);

            return RedirectToAction("Main");
        }

        private void ResetGroupBookingMode(bool pIsInGroupBookingMode)
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return;
            }

            Model.IsInGroupBookingMode = pIsInGroupBookingMode;

            if (pIsInGroupBookingMode)
            {
                Model.SelectedSupportConcept = null;
                Model.SelectedEmployee = null;

                Model.ServiceCategories = CreateServiceCategoryModels(OperationsService.GetAllServiceDescriptions());

                Model.SelectedEmployees.Add(MobileSessionFacade.LoggedInCompactEmployee);
            }
            else
            {
                Model.ServiceCategories.Clear();
                Model.SelectedCostbearerRelOids.Clear();
                Model.SelectedEmployees.Clear();
                Model.SelectedSupportConcepts.Clear();
                Model.SelectedConceptCostBearerRelations.Clear();

                Model.SelectedEmployee = MobileSessionFacade.LoggedInCompactEmployee;

                if (Model.SelectedSupportConcept != null)
                {
                    var details = OperationsService.GetSupportConceptTreeNodeDetailInfo(Model.SelectedSupportConcept.Customer.CustomerOid, Model.SelectedSupportConcept.SupportConceptOid, Model.CostBearer2SupportConceptOid);

                    Model.ServiceCategories = details.ServiceAccountings.Count > 0
                        ? CreateServiceCategoryModels(details.ServiceAccountings.Select(sa => sa.ServiceDescription).ToList())
                        : CreateServiceCategoryModels(OperationsService.GetAllServiceDescriptions());

                    Model.ServiceCategories = Model.ServiceCategories.Where(c => !c.OhneHilfeplan.HasValue || c.OhneHilfeplan.Value == AccountingvisibilityType.Beides || c.OhneHilfeplan.Value == AccountingvisibilityType.NurKlientenbezogen).ToList();
                }
                else if (Model.CostBearer2SupportConceptOid == -2)
                {
                    Model.ServiceCategories = CreateServiceCategoryModels(OperationsService.GetAllServiceDescriptions());
                    Model.ServiceCategories = Model.ServiceCategories.Where(c => !c.OhneHilfeplan.HasValue || c.OhneHilfeplan.Value == AccountingvisibilityType.Beides || c.OhneHilfeplan.Value == AccountingvisibilityType.NichtKlientenbezogen).ToList();
                }
            }
        }

        [HttpPost]
        [Authorize]
        public ActionResult ResetEditingMode(FormCollection pFormCollection)
        {
            if (Model == null)
            {
                return RedirectToActionPermanent("Index", "Login");
            }

            Model.NewServiceRecord = new ServiceRecordDC();
            Model.SelectedServiceRecord = null;
            Model.SelectedSupportConcepts.Clear();
            Model.SelectedEmployees.Clear();
            Model.IsInGroupBookingMode = false;
            Model.IsInEditingMode = false;
            
            return RedirectToActionPermanent("Main");
        }
        
        public string LoadCategoryAndDescription()
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            if (Model.SelectedServiceRecord == null)
            {
                return _LeerzeichenFuerGetMethoden;
            }

            var serviceDescriptionOid = Model.SelectedServiceRecord.ServiceDescription.ServiceDescriptionOid.ToString();
            var serviceCategoryOid = Model.SelectedServiceRecord.ServiceDescription.Category.ServiceCategoryOid.ToString();
            
            return $"{serviceDescriptionOid}/{serviceCategoryOid}";
        }

        [Authorize]
        public string ResetGroupBookingModeViaGET()
        {
            if (Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            Model.IsInGroupBookingMode = false;
            Model.SelectedCostbearerRelOids.Clear();
            Model.SelectedEmployees.Clear();
            Model.SelectedSupportConcepts.Clear();
            Model.SelectedConceptCostBearerRelations.Clear();

            return MainModel.IsEmployeeSelectionVisible.ToString();
        }

        [Authorize]
        public string AddSupportConceptCostBearerRelationsToGroupBooking(string pRelOids, string pGroupOids)
        {
            if(Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            var rawRelOids = string.IsNullOrEmpty(pRelOids) ? new string[0] : pRelOids.Split(',');
            var rawGroupOids = string.IsNullOrEmpty(pGroupOids) ? new string[0] : pGroupOids.Split(',');
            
            var relOids = new List<long>();
            var groups = new List<GroupOfPeopleDC>();

            rawRelOids.DoForEach(s => relOids.AddIfNotIn(long.Parse(s)));
            
            Model.SelectedGroupOfPeopleOids.Clear();

            rawGroupOids.DoForEach(s =>
            {
                var group = Model.GroupsOfPeople.FirstOrDefault(f => f.GroupOfPeopleOid.HasValue && f.GroupOfPeopleOid.Value.Equals(long.Parse(s)));
                if(group == null)
                {
                    return;
                }
                
                groups.AddIfNotIn(group);
                group.SupportConceptList.DoForEach(f => relOids.AddRangeIfElementsNotIn(f.CostBearerRelOids));
            });

            Model.SelectedSupportConcepts.Clear();

            Model.SelectedCostbearerRelOids.Clear();
            Model.SelectedCostbearerRelOids.AddRangeIfElementsNotIn(relOids);

            var selectedSupportConcepts = Model.SupportConcepts.Where(w => w != null && w.CostBearerRelations.Any(a => a.CostBearer2SupportConceptOid.HasValue && relOids.Contains(a.CostBearer2SupportConceptOid.Value))).ToList();

            var groupCostBearerRelations = CustomerService.GetSupportConceptCostBearerRelationsById(relOids);
            
            Model.SelectedConceptCostBearerRelations.Clear();
            Model.SelectedConceptCostBearerRelations.AddRangeIfElementsNotIn(groupCostBearerRelations);

            Model.SelectedSupportConcepts.AddRangeIfElementsNotIn(selectedSupportConcepts);

            foreach (var gruppe in groups.Where(g => g.GroupOfPeopleOid.HasValue))
            {
                var groupRelOids = new List<long>();
                gruppe.SupportConceptList.ForEach(f => groupRelOids.AddRange(f.CostBearerRelOids));

                if (!gruppe.GroupOfPeopleOid.HasValue)
                {
                    continue;
                }

                var groupOid = gruppe.GroupOfPeopleOid.Value;

                if (relOids.ContainsItems(groupRelOids))
                {
                    Model.SelectedGroupOfPeopleOids.AddIfNotIn(groupOid);
                }
                else if (Model.SelectedGroupOfPeopleOids.Contains(groupOid))
                {
                    Model.SelectedGroupOfPeopleOids.Remove(groupOid);
                }
            }

            return SerializeObject(Model.SelectedRelations.ToArray());
        }

        [Authorize]
        public string RemoveSupportConceptCostBearerRelationFromGroupBooking(string pRelOid)
        {
            if(Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            long.TryParse(pRelOid, out var supportConceptCostBearerRelationOid);

            var supportConcept = Model.SelectedSupportConcepts.FirstOrDefault(f => f.CostBearerRelations.Any(a => a.CostBearer2SupportConceptOid == supportConceptCostBearerRelationOid));

            var relation = Model.SelectedConceptCostBearerRelations.FirstOrDefault(f => f.CostBearer2SupportConceptOid == supportConceptCostBearerRelationOid);

            Model.SelectedSupportConcepts.Remove(supportConcept);
            Model.SelectedConceptCostBearerRelations.Remove(relation);

            return _LeerzeichenFuerGetMethoden;
        }

        [Authorize]
        public string AddEmployeesToGroupBooking(string pEmployeeOids)
        {
            if(Model == null)
            {
                RedirectToActionPermanent("Index", "Login");
                return _LeerzeichenFuerGetMethoden;
            }

            if(string.IsNullOrEmpty(pEmployeeOids))
            {
                Model.SelectedEmployees.Clear();
                return _LeerzeichenFuerGetMethoden;
            }

            var rawEmployeeOids = pEmployeeOids.Split(',');
            var oids = new List<long>();

            rawEmployeeOids.DoForEach(s => oids.AddIfNotIn(long.Parse(s)));

            var employees = Model.Employees.Where(w => oids.Contains(w.EmployeeOid));

            Model.SelectedEmployees.Clear();
            Model.SelectedEmployees.AddRangeIfElementsNotIn(employees);
            
            return _LeerzeichenFuerGetMethoden;
        }

        [HttpPost]
        [Authorize]
        public ActionResult LoadSignatureImage(FormCollection pFormCollection)
        {
            if(Model == null)
            {
                return RedirectToActionPermanent("Index", "Login");
            }

            var isParsingSuccessful = long.TryParse(pFormCollection["signatureOidHolder"], out var signatureOid);
            if(isParsingSuccessful)
            {
                Model.SignatureImage = OperationsService.GetSignature(signatureOid).DataBild;
            }

            return RedirectToActionPermanent("Main");
        }

        [Authorize]
        public string ResetSignatureImage()
        {
            if(Model == null)
            {
                return _LeerzeichenFuerGetMethoden;
            }

            Model.SignatureImage = null;

            return _LeerzeichenFuerGetMethoden;
        }
    }
}