using EMIS.DataLogic.Repositories;
using EMIS.Entities;
using EMIS.ViewModel.ScoreManage.LevelScoreManage;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using System.Text;

namespace EMIS.DataLogic.ScoreManage.LevelScoreManage
{
    public class LevelSettingDAL
    {
        public LevelSettingRepository LevelSettingRepository { get; set; }
        public ExaminationSubjectRepository ExaminationSubjectRepository { get; set; }
        public UserRepository UserRepository { get; set; }

        /// <summary>
        /// 查询对应的成绩等级信息LevelSettingView
        /// </summary>
        /// <param name="expLevelSetting"></param>
        /// <returns></returns>
        public IQueryable<LevelSettingView> GetLevelSettingViewQueryable(Expression<Func<ER_LevelSetting, bool>> expLevelSetting)
        {
            var query = from lvst in LevelSettingRepository.GetList(expLevelSetting)
                        join exsub in ExaminationSubjectRepository.Entities
                        on lvst.ExaminationSubjectID equals exsub.ExaminationSubjectID
                        join usc in UserRepository.Entities
                        on lvst.CreateUserID equals usc.UserID into tempusc
                        from uscu in tempusc.DefaultIfEmpty()
                        join usm in UserRepository.Entities
                        on lvst.ModifyUserID equals usm.UserID into tempusm
                        from usmu in tempusm.DefaultIfEmpty()
                        select new LevelSettingView
                        {
                            LevelSettingID = lvst.LevelSettingID,
                            ExaminationSubjectID = lvst.ExaminationSubjectID,
                            ExaminationSubjectName = exsub.Name,
                            LevelNum = lvst.LevelNum ?? 0,
                            LevelName = lvst.LevelName,
                            MinScore = lvst.MinScore,
                            MinScoreOperator = lvst.MinScoreOperator,
                            MaxScore = lvst.MaxScore,
                            MaxScoreOperator = lvst.MaxScoreOperator,
                            TotalScoreRange = lvst.MinScore.ToString() + lvst.MinScoreOperator 
                                + "总成绩" + lvst.MaxScoreOperator + lvst.MaxScore.ToString(),
                            Remark = lvst.Remark,
                            RecordStatus = lvst.RecordStatus,
                            CreateUserID = lvst.CreateUserID,
                            CreateUserName = uscu.Name,
                            CreateTime = lvst.CreateTime,
                            ModifyUserID = lvst.ModifyUserID,
                            ModifyUserName = usmu.Name,
                            ModifyTime = lvst.ModifyTime
                        };

            return query;
        }

    }
}