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

namespace EMIS.DataLogic.Common.EvaluationManage
{
   public class EvaluationControlDAL
    {
       public EvaluationControlRepository evaluationControlRepository { get; set; }
       public EvaluationSettingRepository EvaluationSettingRepository { get; set; }
       public EvaluationEnterRepository EvaluationEnterRepository { get; set; }
       public StudentRepository StudentRepository { get; set; }
       public SchoolyearRepository schoolyearRepository { get; set; }

        /// <summary>
        /// 读取评价控制信息
        /// </summary>
        /// <param name="exp"></param>
        /// <returns></returns>
        public IQueryable<EvaluationControlView> GetEvaluationControlQueryable(Expression<Func<EM_EvaluationControl, bool>> exp)
        {
            var query = from a in evaluationControlRepository.GetList(exp)
                        join b in schoolyearRepository.Entities on a.SchoolyearID equals b.SchoolyearID
                        select new EvaluationControlView
                        {
                            ControlID = a.EvaluationControlID,
                            SchoolyearID = a.SchoolyearID,
                            SchoolyearCode = b.Code,
                            IsResult = a.IsCourseScoreLock.Value,
                            Result = (a.IsCourseScoreLock.HasValue && a.IsCourseScoreLock == true) ? "是" : "否",
                            IsCourse = a.IsSelectCourseLock.Value,
                            Course = (a.IsSelectCourseLock.HasValue && a.IsSelectCourseLock == true) ? "是" : "否",
                            AllowNotEvaluationCount = a.NoNumber == null ? 0 : a.NoNumber,
                            CreateUserID = a.CreateUserID,
                            CreateTime = a.CreateTime
                        };
            return query;
        }

        ///获取学生没评的课程教师信息
        public IQueryable<EM_EvaluationSetting> GetStudentNotEvaluationList(Expression<Func<CF_Student, bool>> studentExp, Expression<Func<EM_EvaluationSetting, bool>> evaluationSettingExp)
        {
            var query = (from es in EvaluationSettingRepository.GetList(evaluationSettingExp)
                         from ess in es.CF_Student
                         join s in StudentRepository.GetList(studentExp) on ess.UserID equals s.UserID
                         join ee in EvaluationEnterRepository.Entities 
                            on new { es.EducationMissionClassID, StudentUserID = (Guid?)ess.UserID } 
                            equals new { ee.EducationMissionClassID, ee.StudentUserID }
                            into dee
                         from eee in dee.DefaultIfEmpty()
                         where eee.EducationMissionClassID == null && es.OpenStatus == (int)CF_YesOrNoStatus.Yes 
                         select es
                         );

            return query;
        }
    }
}