using AutoMapper;
using AutoMapper.QueryableExtensions;
using IRaCIS.Application.Interfaces;
using IRaCIS.Application.ViewModels;
using IRaCIS.Core.Application.Contracts.RequestAndResponse;
using System;
using System.Linq;
using IRaCIS.Core.Domain.Interfaces;
using IRaCIS.Core.Domain.Models;

namespace IRaCIS.Application.Services
{

    public class VacationService : IVacationService
    {
        private readonly IVacationRepository _vacationRepository;
        private readonly IMapper _mapper;

        public VacationService(IVacationRepository vacationRepository,IMapper mapper)
        {
            _vacationRepository = vacationRepository;
            _mapper = mapper;
        }
        public IResponseOutput AddOrUpdateVacation(VacationCommand param)
        {
            if (param.Id == Guid.Empty|| param.Id ==null)
            {
                var result = _vacationRepository.Add(_mapper.Map<Vacation>(param));

                var success = _vacationRepository.SaveChanges();

                return ResponseOutput.Result(success, result.Id);

            }
            else
            {
                var success = _vacationRepository.Update(u => u.Id == param.Id,
                h => new Vacation
                {
                    StartDate = param.StartDate,
                    EndDate = param.EndDate
                });

                return ResponseOutput.Result(success);

            }

        }

        public IResponseOutput DeleteVacation(Guid holidayId)
        {
            var success = _vacationRepository.Delete(u => u.Id == holidayId);

            return ResponseOutput.Result(success);

        }

        public PageOutput<VacationCommand> GetVacationList(Guid doctorId, int pageIndex, int pageSize)
        {
            var result = _vacationRepository.Find(u => u.DoctorId == doctorId).ProjectTo<VacationCommand>(_mapper.ConfigurationProvider)
                .OrderBy(o => o.StartDate).Skip((pageIndex - 1) * pageSize).Take(pageSize).ToList();

            var data = new PageOutput<VacationCommand>()
            {
                PageIndex = pageIndex,
                PageSize = pageSize,
                CurrentPageData = result,
                TotalCount = _vacationRepository.GetCount(u => u.DoctorId == doctorId)
            };

            return data;

        }

        public IResponseOutput OnVacation(Guid doctorId)
        {
            var count = _vacationRepository.GetCount(u => u.DoctorId == doctorId && u.EndDate >= DateTime.Now && u.StartDate <= DateTime.Now);

            return ResponseOutput.Result(count > 0);
        }

    }
}