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

namespace EMIS.DataLogic.ExaminationApply
{
    public class OpenControlDAL
    {
        public ExaminationOpenControlRepository ExaminationOpenControlRepository { get; set; }
        public ExaminationSubjectRepository ExaminationSubjectRepository { get; set; }
        public DictionaryItemRepository dictionaryItemRepository { get; set; }
        public IQueryable<OpenControlView> GetOpenControlView(Expression<Func<EX_ExaminationOpenControl, bool>> openControlExpression)
        {
            var q = (from oc in ExaminationOpenControlRepository.GetList(openControlExpression)
                     select new OpenControlView
                     {
                         ExaminationSubjectEditID = oc.ExaminationSubjectID,
                         ExaminationOpenControlID = oc.ExaminationOpenControlID,
                         ExaminationTypeID = oc.EX_ExaminationSubject.ExaminationTypeID,
                         ExaminationTypeName = oc.EX_ExaminationSubject.EX_ExaminationType.Name,
                         ExaminationSubjectID = oc.ExaminationSubjectID,
                         ExaminationSubjectName = oc.EX_ExaminationSubject.Name,
                         SchoolyearNumID = oc.SchoolyearNumID,
                         StudentType = oc.StudentType,
                         StartDate = oc.StartDate,
                         EndDate = oc.EndDate,
                         PeopleNumLimit = oc.PeopleNumLimit,
                         RecordStatus = oc.RecordStatus,
                         CreateUserID = oc.CreateUserID,
                         CreateTime = oc.CreateTime,
                         ModifyUserID = oc.ModifyUserID,
                         ModifyTime = oc.ModifyTime
                     }).OrderBy(x => x.ExaminationTypeName).ThenBy(x => x.ExaminationSubjectName).ThenBy(x => x.StudentType).ThenByDescending(x => x.SchoolyearNumID);

            return q;
        }

        /// <summary>
        /// 根据开课控制学生类别
        /// </summary>
        /// <param name="openControlID"></param>
        /// <returns></returns>
        public List<string> GetStudentTypeQueryble(Guid? openControlID)
        {
            var query = from a in ExaminationOpenControlRepository.Entities.Where(x => x.ExaminationOpenControlID == openControlID)
                        join b in dictionaryItemRepository.Entities on new { a.StudentType, DictionaryCode = DictionaryItem.CF_STUDENTTYPE.ToString() }
                        equals new { StudentType = b.Value, b.DictionaryCode }
                        select b.Value.Value.ToString();
            return query.ToList();
        }
    }
}