using AutoMapper;
using AutoMapper.QueryableExtensions;
using IRaCIS.Application.ExpressionExtend;
using IRaCIS.Application.Interfaces;
using IRaCIS.Application.ViewModels;
using IRaCIS.Core.Application.Contracts.RequestAndResponse;
using IRaCIS.Core.Domain.Interfaces;
using IRaCIS.Core.Domain.Models;
using IRaCIS.Core.Domain.Share;
using IRaCIS.Infra.Data.ExpressionExtend;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;

namespace IRaCIS.Application.Services
{
    public class CroService : ICroService
    {
        private readonly ICRORepository _croRepository;
        private readonly ITrialRepository _trialRepository;
        private readonly IUserRepository _userRepository;
        private readonly IMapper _mapper;

        public CroService(ICRORepository croCompanyRepository, ITrialRepository trialRepository, IUserRepository userRepository,IMapper mapper)
        {
            _croRepository = croCompanyRepository;
            _trialRepository = trialRepository;
            _userRepository = userRepository;
            _mapper = mapper;
        }

        /// <summary> 分页获取CRO列表 </summary>
        public PageOutput<CROCompanyDTO> GetCroList(CROCompanyQueryDTO croCompanySearchModel)
        {
            Expression<Func<CRO, bool>> croLambda = x => true;
            if (!string.IsNullOrWhiteSpace(croCompanySearchModel.CROName.Trim()))
            {
                croLambda = croLambda.And(t => t.CROName.Contains(croCompanySearchModel.CROName.Trim()));
            }
            var croQueryable = _croRepository.Find(croLambda).ProjectTo<CROCompanyDTO>(_mapper.ConfigurationProvider);
            var count = croQueryable.Count();

            var propName = string.IsNullOrWhiteSpace(croCompanySearchModel.SortField) ? "Id" : croCompanySearchModel.SortField;
    
            croQueryable = croCompanySearchModel.Asc ? croQueryable.OrderBy(propName) : croQueryable.OrderByDescending(propName);

            croQueryable = croQueryable
                .Skip(((croCompanySearchModel.PageIndex - 1) * croCompanySearchModel.PageSize))
                .Take(croCompanySearchModel.PageSize);

            var croList = croQueryable.ToList();
            return new PageOutput<CROCompanyDTO>(croCompanySearchModel.PageIndex,
                croCompanySearchModel.PageSize, count, croList);
        }

        /// <summary> 根据CRO 名称查询所有CRO 列表 </summary>
        public IEnumerable<CroSelectDTO> GetCroSearchList()
        {
            var croQueryable = _croRepository.GetAll().ProjectTo<CroSelectDTO>(_mapper.ConfigurationProvider);
            return croQueryable.ToList();
        }

 

        /// <summary> 添加CRO信息 </summary>
        public IResponseOutput AddOrUpdateCro(CROCompanyDTO addCroCompanyViewModel, Guid userId)
        {
            if (addCroCompanyViewModel.Id == Guid.Empty||addCroCompanyViewModel.Id==null)
            {
                if (_croRepository.FindSingleOrDefault(t => t.CROName == addCroCompanyViewModel.CROName) != null)
                {
                    return ResponseOutput.NotOk("Name repetition. ");
                }
                var temp = _mapper.Map<CRO>(addCroCompanyViewModel);
              
                var cro = _croRepository.Add(temp);
                var success = _croRepository.SaveChanges();

                return ResponseOutput.Result(success, cro.Id.ToString());
            }
            else
            {
               var updateCroCompanyViewModel = addCroCompanyViewModel;
                if (_croRepository.FindSingleOrDefault(t => t.CROName == updateCroCompanyViewModel.CROName && t.Id != updateCroCompanyViewModel.Id) != null)
                {
                    return ResponseOutput.NotOk("Name repetition. ");
                }
                var success = _croRepository.Update(t => t.Id == updateCroCompanyViewModel.Id, u => new CRO()
                {
                    CROName = updateCroCompanyViewModel.CROName,
                    CROCode = updateCroCompanyViewModel.CROCode,
                    UpdateTime = DateTime.Now,
                    UpdateUserId = userId
                });
                return ResponseOutput.Result(success, success ? string.Empty : StaticData.AddFailed);
            }
          
        }

        /// <summary> 删除CRO信息 </summary>
        public IResponseOutput DeleteCro(Guid cROCompanyId)
        {
            if (_trialRepository.Find().Any(t => t.CROId == cROCompanyId))
            {
                return ResponseOutput.NotOk("存在该CRO的项目，暂时无法删除。");
            }
            if (_userRepository.Find().Any(t => t.OrganizationId == cROCompanyId))
            {
                return ResponseOutput.NotOk("该CRO下存在用户，暂时无法删除。");
            }
            var success = _croRepository.Delete(t => t.Id == cROCompanyId);

            return ResponseOutput.Result(success, success ? string.Empty : StaticData.DeleteFailed);
        }
    }
}