using BS.Shared;
using BS.Shared.DataContracts;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Web.Mvc;

namespace BeWoPlanerMobil.Models
{
    public class EmployeeModel : AbstractModel, IAbsenceTimeModel
    {
        public bool HasRightToEdit => HasRightToEditEmployeeAbsenceTimes;
        public bool HasRightToDelete => HasRightToEditEmployeeAbsenceTimes;

        public bool CanDeleteAbsenceTime(AbsenceTimeDC absenceTime)
        {
            if (!HasRightToDelete)
            {
                return false;
            }

            if (absenceTime.IsInThePast)
            {
                return CheckRight(UserRightType.Employee_AllowDeleteAbsenceTimesAfterExpiry);
            }

            return true;
        }

        public string HtmlPrefix => "employee";

        public EmployeeSessionModel EmployeeSessionModel => SessionModel as EmployeeSessionModel;

        public EmployeeDC SelectedEmployee { get; set; }

        public IAbsenceTime AbsenceTimeObject
        {
            get => SelectedEmployee;
            set => SelectedEmployee = (EmployeeDC) value;
        }

        public AbsenceTimeDC SelectedAbsenceTime { get; set; }

        [Display(Name = "Mitarbeiter")]
        public long? SelectedEmployeeOid
        {
            get => EmployeeSessionModel.SelectedAbsenceTimeObjectOid;
            set => EmployeeSessionModel.SelectedAbsenceTimeObjectOid = value;
        }

        public long? AbsenteeOid => SelectedEmployeeOid;
        public EmployeeModel()
        {
            SessionModel = new EmployeeSessionModel();
        }

        public List<AbsenceReasonDC> AllAbsenceReasons { get; set; }

        public List<SelectListItem> AbsenceReasonItems
        {
            get
            {
                var result = new List<SelectListItem> { new SelectListItem { Value = "-1", Text = string.Empty } };

                foreach(var absenceReason in AllAbsenceReasons)
                {
                    if(absenceReason.AbsenceReasonOid is null)
                    {
                        continue;
                    }

                    result.Add(new SelectListItem
                    {
                        Value = absenceReason.AbsenceReasonOid.Value.ToString(),
                        Text = absenceReason.Description
                    });
                }

                return result;
            }
        }

        [Display(Name = "Kategorie")]
        public long? SelectedAbsenceReasonOid
        {
            get => EmployeeSessionModel.SelectedAbsenceReasonOid;
            set => EmployeeSessionModel.SelectedAbsenceReasonOid = value;
        }

        public long? SelectedAbsenceTimeOid
        {
            get => EmployeeSessionModel.SelectedAbsenceTimeOid;
            set => EmployeeSessionModel.SelectedAbsenceTimeOid = value;
        }
    }
}