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

namespace EMIS.DataLogic.CultureplanManage.CourseMaterial
{
    public class CourseTypeSetDAL
    {
        public CourseTypeSelectCourseTypeRepository CourseTypeSelectCourseTypeRepository { get; set; }
        public DictionaryItemRepository DictionaryItemRepository { get; set; }
        public UserRepository UserRepository { get; set; }

        /// <summary>
        /// 查询对应的课程类型设定信息View（对应的字典表信息左连设定表）
        /// </summary>
        /// <param name="exp"></param>
        /// <returns></returns>
        public IQueryable<CourseTypeSetView> GetCourseTypeSetListView(Expression<Func<EM_CourseTypeSelectCourseType, bool>> exp)
        {
            var query = from courseType in DictionaryItemRepository.GetList(x => x.DictionaryCode == typeof(CF_CourseType).Name)
                        join set in CourseTypeSelectCourseTypeRepository.GetList(exp)
                        on courseType.Value equals set.CourseTypeID into tempcou
                        from courseTypeSet in tempcou.DefaultIfEmpty()
                        join usc in UserRepository.Entities
                        on courseTypeSet.CreateUserID equals usc.UserID into tempusc
                        from uscu in tempusc.DefaultIfEmpty()
                        join usm in UserRepository.Entities 
                        on courseTypeSet.ModifyUserID equals usm.UserID into tempusm
                        from usmu in tempusm.DefaultIfEmpty()
                        select new CourseTypeSetView
                        {
                            CourseTypeSelectCourseTypeID = courseTypeSet.CourseTypeSelectCourseTypeID == null ? Guid.Empty : courseTypeSet.CourseTypeSelectCourseTypeID,
                            CourseTypeID = courseType.Value,
                            CourseTypeName = courseType.Name,
                            ColourBlock = "",
                            CourseTypeColour = (courseTypeSet.CourseTypeColour == null || courseTypeSet.CourseTypeColour == "") ? "white" : courseTypeSet.CourseTypeColour,
                            IsRequired = courseTypeSet.IsRequired == null ? false : courseTypeSet.IsRequired,
                            IsOptionalCourse = courseTypeSet.IsOptionalCourse == null ? false : courseTypeSet.IsOptionalCourse,
                            IsFreeSelectionCourse = courseTypeSet.IsFreeSelectionCourse == null ? false : courseTypeSet.IsFreeSelectionCourse,
                            IsDisplay = courseType.RecordStatus > (int)SYS_STATUS.UNUSABLE ? true : false,
                            RecordStatus = courseTypeSet.RecordStatus,
                            CreateUserID = courseTypeSet.CreateUserID,
                            CreateUserName = uscu.Name,
                            CreateTime = courseTypeSet.CreateTime,
                            ModifyUserID = courseTypeSet.ModifyUserID,
                            ModifyUserName = usmu.Name,
                            ModifyTime = courseTypeSet.ModifyTime
                        };

            return query;
        }

        /// <summary>
        /// 查询对应的课程类型设定信息View（设定表与对应的字典表信息内联）
        /// </summary>
        /// <param name="exp"></param>
        /// <returns></returns>
        public IQueryable<CourseTypeSetView> GetCourseTypeSelectCourseType(Expression<Func<EM_CourseTypeSelectCourseType, bool>> exp)
        {
            var query = from courseTypeSet in CourseTypeSelectCourseTypeRepository.GetList(exp)
                        join courseType in DictionaryItemRepository.GetList(x => x.DictionaryCode == typeof(CF_CourseType).Name)
                        on courseTypeSet.CourseTypeID equals courseType.Value
                        join usc in UserRepository.Entities
                        on courseTypeSet.CreateUserID equals usc.UserID into tempusc
                        from uscu in tempusc.DefaultIfEmpty()
                        join usm in UserRepository.Entities
                        on courseTypeSet.ModifyUserID equals usm.UserID into tempusm
                        from usmu in tempusm.DefaultIfEmpty()
                        select new CourseTypeSetView
                        {
                            CourseTypeSelectCourseTypeID = courseTypeSet.CourseTypeSelectCourseTypeID,
                            CourseTypeID = courseType.Value.Value,
                            CourseTypeName = courseType.Name,
                            ColourBlock = "",
                            CourseTypeColour = (courseTypeSet.CourseTypeColour == null || courseTypeSet.CourseTypeColour == "") ? "white" : courseTypeSet.CourseTypeColour,
                            IsRequired = courseTypeSet.IsRequired,
                            IsOptionalCourse = courseTypeSet.IsOptionalCourse,
                            IsFreeSelectionCourse = courseTypeSet.IsFreeSelectionCourse,
                            IsDisplay = courseType.RecordStatus > (int)SYS_STATUS.UNUSABLE ? true : false,
                            RecordStatus = courseTypeSet.RecordStatus,
                            CreateUserID = courseTypeSet.CreateUserID,
                            CreateUserName = uscu.Name,
                            CreateTime = courseTypeSet.CreateTime,
                            ModifyUserID = courseTypeSet.ModifyUserID,
                            ModifyUserName = usmu.Name,
                            ModifyTime = courseTypeSet.ModifyTime
                        };

            return query;
        }

    }
}