using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;
using EMIS.Entities;
using EMIS.ViewModel;
using EMIS.ViewModel.EvaluationManage.EvaluationSetting;
using EMIS.DataLogic.Repositories;

namespace EMIS.DataLogic.EvaluationManage.EvaluationSetting
{
    public class EvaluationIntTypeDAL
    {
        public EvaluationIntTypeRepository EvaluationIntTypeRepository { get; set; }
        public EvaluationTeachingModeRepository EvaluationTeachingModeRepository { get; set; }
        public DictionaryItemRepository DictionaryItemRepository { get; set; }
        public UserRepository UserRepository { get; set; }

        /// <summary>
        /// 查询对应的评价类型信息EvaluationIntTypeView
        /// </summary>
        /// <param name="exp"></param>
        /// <returns></returns>
        public IQueryable<EvaluationIntTypeView> GetEvaluationIntTypeViewQueryable(Expression<Func<EM_EvaluationIntType, bool>> exp)
        {
            var query = from evit in EvaluationIntTypeRepository.GetList(exp)
                        join usc in UserRepository.Entities
                        on evit.CreateUserID equals usc.UserID into tempusc
                        from uscu in tempusc.DefaultIfEmpty()
                        join usm in UserRepository.Entities
                        on evit.ModifyUserID equals usm.UserID into tempusm
                        from usmu in tempusm.DefaultIfEmpty()
                        select new EvaluationIntTypeView
                        {
                            EvaluationIntTypeID = evit.EvaluationIntTypeID,
                            Code = evit.Code,
                            Name = evit.Name,
                            TeachingModeIDList = evit.EM_EvaluationTeachingMode.OrderBy(x => x.TeachingModeID).Select(x => x.TeachingModeID).ToList(),
                            Remark = evit.Remark,
                            RecordStatus = evit.RecordStatus,
                            CreateUserID = evit.CreateUserID,
                            CreateUserName = uscu.Name,
                            CreateTime = evit.CreateTime,
                            ModifyUserID = evit.ModifyUserID,
                            ModifyUserName = usmu.Name,
                            ModifyTime = evit.ModifyTime
                        };

            return query;
        }

        /// <summary>
        /// 查询评价类型对应的授课方式
        /// </summary>
        /// <param name="exp"></param>
        /// <returns></returns>
        public IQueryable<int?> GetTeachingModeTypeQueryble(Expression<Func<EM_EvaluationIntType, bool>> exp)
        {
            var query = from it in EvaluationIntTypeRepository.GetList(exp)
                        join tm in EvaluationTeachingModeRepository.Entities
                        on it.EvaluationIntTypeID equals tm.EvaluationIntTypeID
                        join dictm in DictionaryItemRepository.GetList(x => x.DictionaryCode == typeof(CF_TeachingMode).Name)
                        on tm.TeachingModeID equals dictm.Value
                        select dictm.Value;

            return query;
        }

    }
}