using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Linq.Expressions;
using EMIS.Entities;
using EMIS.DataLogic.Repositories;
using EMIS.ViewModel.Cultureplan;
using EMIS.ViewModel.CultureplanManage.CourseMaterial;

namespace EMIS.DataLogic.CultureplanManage.CourseMaterial
{
    public class ClubCourseDAL
    {
        public ClubCourseRepository ClubCourseRepository { get; set; }
        public CoursematerialRepository CoursematerialRepository { get; set; }
        public ClassGroupingRepository ClassGroupingRepository { get; set; }

        /// <summary>
        /// 查询对应的俱乐部课程信息View
        /// </summary>
        /// <param name="exp"></param>
        /// <returns></returns>
        public IQueryable<ClubCourseView> GetClubCourseViewQueryable(Expression<Func<ER_ClubCourse, bool>> exp)
        {
            var query = from club in ClubCourseRepository.GetList(exp)
                        join cou in CoursematerialRepository.Entities
                        on club.CoursematerialID equals cou.CoursematerialID
                        join cg in ClassGroupingRepository.Entities
                        on cou.ClassGroupingID equals cg.ClassGroupingID into tempcg
                        from coucg in tempcg.DefaultIfEmpty()
                        select new ClubCourseView
                        {
                            ClubCourseID = club.ClubCourseID,
                            CoursematerialID = club.CoursematerialID,
                            CourseCode = cou.CourseCode,
                            CourseName = cou.CourseName,
                            Abbreviation = cou.Abbreviation,
                            CourseLevelID = cou.CourseLevelID,
                            CourseScienceID = cou.CourseScienceID,
                            ClassGroupingID = cou.ClassGroupingID,
                            ClassName = coucg.ClassName,
                            IsEnable = cou.IsEnable == true ? true : false,
                            RecordStatus = club.RecordStatus,
                            CreateUserID = club.CreateUserID,
                            CreateTime = club.CreateTime,
                            ModifyUserID = club.ModifyUserID,
                            ModifyTime = club.ModifyTime
                        };

            return query;

        }

        /// <summary>
        /// 查询对应的课程信息View（课程信息表左连俱乐部课程表，排除对应的俱乐部课程信息）
        /// </summary>
        /// <param name="exp"></param>
        /// <returns></returns>
        public IQueryable<CoursematerialView> GetCourseNoClubViewQueryable(Expression<Func<EM_Coursematerial, bool>> exp)
        {
            var query = from cou in CoursematerialRepository.GetList(exp)
                        join cg in ClassGroupingRepository.Entities
                        on cou.ClassGroupingID equals cg.ClassGroupingID into tempcg
                        from coucg in tempcg.DefaultIfEmpty()
                        join club in ClubCourseRepository.Entities
                        on cou.CoursematerialID equals club.CoursematerialID into tempclub
                        from clubcou in tempclub.DefaultIfEmpty()
                        where clubcou.CoursematerialID == null
                        select new CoursematerialView
                        {
                            CoursematerialID = cou.CoursematerialID,
                            CourseCode = cou.CourseCode,
                            CourseName = cou.CourseName,
                            Abbreviation = cou.Abbreviation,
                            EnglishName = cou.EnglishName,
                            StandardName = cou.StandardName,
                            CourseEdition = cou.CourseEdition,
                            CourseLevelID = cou.CourseLevelID,
                            CourseScienceID = cou.CourseScienceID,
                            ClassGroupingID = cou.ClassGroupingID,
                            ClassName = coucg.ClassName,
                            CourseSynopsis = cou.CourseSynopsis,
                            CourseReserve = cou.CourseReserve,
                            IsEnable = cou.IsEnable == true ? true : false,
                            Remark = cou.Remark,
                            RecordStatus = cou.RecordStatus,
                            CreateUserID = cou.CreateUserID,
                            CreateTime = cou.CreateTime,
                            ModifyUserID = cou.ModifyUserID,
                            ModifyTime = cou.ModifyTime
                        };

            return query;
        }

    }
}