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

namespace EMIS.DataLogic.ScoreManage
{
    public class NotPassStudentDAL
    {
        public FinallyScoreRepository finallyScoreRepository { get; set; }
        public UserRepository userRepository { get; set; }

        public IQueryable<NotPassStudentView> GetScoreViewQueryable(Expression<Func<Sys_User, bool>> exp)
        {
            var query = from score in finallyScoreRepository.Entities
                        group score by score.UserID
                        into a
                        join user in userRepository.GetList(exp)
                        on a.Key equals user.UserID
                        select new NotPassStudentView
                        {
                            UserID = a.Key,
                            UserName = user.Name,
                            LoginID = user.LoginID,
                            CampusID = user.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.CF_College.CF_Campus.CampusID,
                            CampusName = user.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.CF_College.CF_Campus.Name,
                            Years = user.CF_Student.CF_Classmajor.CF_Grademajor.CF_Schoolyear.Years,
                            StandardID = user.CF_Student.CF_Classmajor.CF_Grademajor.CF_Facultymajor.StandardID,
                            ClassMajorID = user.CF_Student.CF_Classmajor.ClassmajorID,
                            ClassMajorName = user.CF_Student.CF_Classmajor.Name,
                            NotPassCount = a.Count(x => x.TotalScore < 60),
                        };

            return query;
        }
    }
}