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

namespace EMIS.DataLogic.Common.CalendarManage
{
    public class SCalendarDAL
    {
        public SCalendarRepository scalendarRepository { get; set; }

        public DictionaryItemRepository dictionaryItemRepository { get; set; }
        
        /// <summary>
        /// 读取校历信息
        /// </summary>
        /// <param name="exp"></param>
        /// <returns></returns>
        public IQueryable<SCalendarView> GetSCalendarQueryable(Expression<Func<CF_SCalendar, bool>> exp)
        {
            var query = from a in scalendarRepository.GetList(exp)
                        join b in dictionaryItemRepository.Entities on new { a.ActivitiesType, DictionaryCode = "CF_ActivitiesType" }
                        equals new { ActivitiesType = b.Value, b.DictionaryCode } into gbty
                        from gicbty in gbty.DefaultIfEmpty()
                        join c in dictionaryItemRepository.Entities on new { a.TimesSegment, DictionaryCode = "CF_TimesSegment" }
                        equals new { TimesSegment = c.Value.Value, c.DictionaryCode } into gbsta
                        from gicbsta in gbsta.DefaultIfEmpty()
                        select new SCalendarView
                        {
                            ActivitiesID = a.ActivitiesID,
                            Name = a.Name,
                            ActivitiesTime = a.ActivitiesTime,
                            TimesSegment = a.TimesSegment,
                            TimesSegmentName = gicbsta.Name,
                            ActivitiesContent = a.ActivitiesContent,
                            ActivitiesType = a.ActivitiesType,
                            ActivitiesTypeName = gicbty.Name,
                            CreateUserID = a.CreateUserID,
                            CreateTime = a.CreateTime
                        };
            return query;
        }
    }
}