using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Linq.Expressions;
using EMIS.Entities;
using EMIS.ViewModel.UniversityManage.AdministrativeOrgan;
using EMIS.ViewModel.SchedulingManage;
using EMIS.DataLogic.Repositories;

namespace EMIS.DataLogic.SchedulingManage.SchedulingSettings
{
    public class CollegePriorityDAL
    {
        public CollegePriorityRepository CollegePriorityRepository { get; set; }
        public CollegeRepository CollegeRepository { get; set; }
        public CampusRepository CampusRepository { get; set; }
        public UserRepository UserRepository { get; set; }

        /// <summary>
        /// 查询院系控制信息CollegePriorityView（排课优先级、开始日期、结束日期等）
        /// </summary>
        /// <param name="exp"></param>
        /// <returns></returns>
        public IQueryable<CollegePriorityView> GetCollegePriorityViewQueryable(Expression<Func<ES_CollegePriority, bool>> exp)
        {
            var query = from cp in CollegePriorityRepository.GetList(exp)
                        join col in CollegeRepository.Entities
                        on cp.CollegeID equals col.CollegeID
                        join cam in CampusRepository.Entities
                        on col.CampusID equals cam.CampusID
                        join cus in UserRepository.Entities
                        on cp.CreateUserID equals cus.UserID into tempcus
                        from cpcus in tempcus.DefaultIfEmpty()
                        select new CollegePriorityView
                        {
                            CollegePriorityID = cp.CollegePriorityID,
                            CollegeID = cp.CollegeID,
                            CollegeNo = col.No,
                            CollegeName = col.Name,
                            UnitCategoryID = col.CF_CollegeProfile.UnitCategoryID,
                            CampusID = col.CampusID,
                            CampusNo = cam.No,
                            CampusName = cam.Name,
                            Priority = cp.Priority,
                            StartDate = cp.StartDate,
                            EndDate = cp.EndDate,
                            RecordStatus = cp.RecordStatus,
                            CreateUserID = cp.CreateUserID,
                            CreateUserName = cpcus.Name,
                            CreateTime = cp.CreateTime,
                            ModifyUserID = cp.ModifyUserID,
                            ModifyTime = cp.ModifyTime
                        };
            return query;
        }

        /// <summary>
        /// 查询院系控制中未新增的院系所信息CollegeView
        /// </summary>
        /// <param name="expCollege"></param>
        /// <param name="expCollegePriority"></param>
        /// <returns></returns>
        public IQueryable<CollegeView> GetCollegeViewNoAddQueryable(Expression<Func<CF_College, bool>> expCollege, Expression<Func<ES_CollegePriority, bool>> expCollegePriority)
        {
            var query = from col in CollegeRepository.GetList(expCollege)
                        join cam in CampusRepository.Entities
                        on col.CampusID equals cam.CampusID
                        join cp in CollegePriorityRepository.GetList(expCollegePriority)
                        on col.CollegeID equals cp.CollegeID into tempcp
                        from colcp in tempcp.DefaultIfEmpty()
                        where colcp.CollegePriorityID == null
                        select new CollegeView
                        {
                            CollegeID = col.CollegeID,
                            No = col.No,
                            Name = col.Name,
                            SimpleName = col.SimpleName,
                            CampusID = col.CampusID,
                            CampusNo = cam.No,
                            CampusName = cam.Name,
                            UnitCategoryID = col.CF_CollegeProfile.UnitCategoryID,
                            CollegeTypeID = col.CF_CollegeProfile.CollegeTypeID,
                            CollegeCategoryID = col.CF_CollegeProfile.CollegeCategoryID,
                            Officephone = col.CF_CollegeProfile.Officephone,
                            Remark = col.Remark,
                            RecordStatus = col.RecordStatus,
                            CreateUserID = col.CreateUserID,
                            CreateTime = col.CreateTime,
                            ModifyUserID = col.ModifyUserID,
                            ModifyTime = col.ModifyTime
                        };

            return query;
        }

    }
}