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

namespace EMIS.DataLogic.EvaluationManage.EvaluationTable
{
    public class EvaluationTargetDAL
    {
        public EvaluationTargetRepository EvaluationTargetRepository { get; set; }
        public EvaluationTableRepository EvaluationTableRepository { get; set; }
        public EvaluationNormRepository EvaluationNormRepository { get; set; }
        public EvaluationParticipateTypeRepository EvaluationParticipateTypeRepository { get; set; }
        public EvaluationIntTypeRepository EvaluationIntTypeRepository { get; set; }
        public EvaluationProjectRepository EvaluationProjectRepository { get; set; }
        public UserRepository UserRepository { get; set; }

        /// <summary>
        /// 查询对应的评价指标信息EvaluationTargetView
        /// </summary>
        /// <param name="exp"></param>
        /// <returns></returns>
        public IQueryable<EvaluationTargetView> GetEvaluationTargetViewQueryable(Expression<Func<EM_EvaluationTarget, bool>> exp)
        {
            var query = from evtg in EvaluationTargetRepository.GetList(exp)
                        join evtb in EvaluationTableRepository.Entities
                        on evtg.EvaluationTableID equals evtb.EvaluationTableID
                        join evnm in EvaluationNormRepository.Entities
                        on evtg.EvaluationNormID equals evnm.EvaluationNormID
                        join evpt in EvaluationParticipateTypeRepository.Entities
                        on evtb.EvaluationParticipateTypeID equals evpt.EvaluationParticipateTypeID
                        join evit in EvaluationIntTypeRepository.Entities
                        on evtb.EvaluationIntTypeID equals evit.EvaluationIntTypeID
                        join pj in
                            (
                                from pj in EvaluationProjectRepository.Entities
                                group pj by pj.EvaluationTargetID into gpj
                                select new
                                {
                                    EvaluationTargetID = gpj.Key,
                                    ProjectCount = gpj.Count()
                                }
                            )
                        on evtg.EvaluationTargetID equals pj.EvaluationTargetID into temppj
                        from evpj in temppj.DefaultIfEmpty()
                        join usc in UserRepository.Entities
                        on evtg.CreateUserID equals usc.UserID into tempusc
                        from uscu in tempusc.DefaultIfEmpty()
                        join usm in UserRepository.Entities
                        on evtg.ModifyUserID equals usm.UserID into tempusm
                        from usmu in tempusm.DefaultIfEmpty()
                        select new EvaluationTargetView
                        {
                            EvaluationTargetID = evtg.EvaluationTargetID,
                            OrderNo = evtg.OrderNo,
                            Code = evtg.Code,
                            Name = evtg.Name,
                            EvaluationTableID = evtg.EvaluationTableID,
                            EvaluationTableCode = evtb.Code,
                            EvaluationTableName = evtb.Name,
                            EvaluationTableWeight = evtb.Weight,
                            EvaluationParticipateTypeID = evtb.EvaluationParticipateTypeID,
                            ParticipateTypeID = evpt.ParticipateTypeID,
                            IsStudent = evpt.IsStudent.Value,
                            EvaluationTypeID = evtb.EvaluationIntTypeID,
                            EvaluationTypeCode = evit.Code,
                            EvaluationTypeName = evit.Name,
                            TeachingModeIDList = evit.EM_EvaluationTeachingMode.OrderBy(x => x.TeachingModeID).Select(x => x.TeachingModeID).ToList(),
                            EvaluationNormID = evtg.EvaluationNormID,
                            EvaluationNormName = evnm.Name,
                            NormTypeID = evnm.NormTypeID,
                            Weight = evtg.Weight,
                            ProjectCount = evpj.ProjectCount == null ? 0 : evpj.ProjectCount,
                            Remark = evtg.Remark,
                            RecordStatus = evtg.RecordStatus,
                            CreateUserID = evtg.CreateUserID,
                            CreateUserName = uscu.Name,
                            CreateTime = evtg.CreateTime,
                            ModifyUserID = evtg.ModifyUserID,
                            ModifyUserName = usmu.Name,
                            ModifyTime = evtg.ModifyTime
                        };

            return query;
        }

    }
}