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

namespace EMIS.DataLogic.DQPSystem
{
    public class SOCDetailGroupDAL
    {
        public SOCRepository SOCRepository { get; set; }
        public SOCDetailRepository SOCDetailRepository { get; set; }
        public SOCDetailAttachmentRepository SOCDetailAttachmentRepository { get; set; }
        public SOCDetailGroupRepository SOCDetailGroupRepository { get; set; }
        public StudentRepository studentRepository { get; set; }
        public EducationMissionRepository educationMissionRepository { get; set; }

        public IQueryable<SOCDetailGroupView> GetSOCDetailGroupViewQueryable(Expression<Func<DQP_SOCDetailGroup, bool>> exp)
        {
            var query = from fgro in SOCDetailGroupRepository.GetList(exp)
                        join edu in educationMissionRepository.Entities
                        on fgro.DQP_SOCDetail.DQP_SOC.EducationMissionID equals edu.EducationMissionID
                        into gedu
                        from edu in gedu.DefaultIfEmpty()
                        //join att in SOCDetailAttachmentRepository.Entities
                        //on detail.SOCDetailID equals att.SOCDetailID
                        //into gatt
                        //from fatt in gatt.DefaultIfEmpty()
                        select new SOCDetailGroupView
                        {
                            SOCDetailGroupID = fgro.SOCDetailGroupID,
                            EducationMissionID = fgro.DQP_SOCDetail.DQP_SOC.EducationMissionID,
                            EducationMissionName = edu.ClassName,
                            SOCDetailID = fgro.DQP_SOCDetail.SOCDetailID,
                            Name = fgro.DQP_SOCDetail.Name,
                            CoursematerialID = fgro.DQP_SOCDetail.DQP_SOC.CoursematerialID,
                            CourseCode = fgro.DQP_SOCDetail.DQP_SOC.EM_Coursematerial.CourseCode,
                            CourseName = fgro.DQP_SOCDetail.DQP_SOC.EM_Coursematerial.CourseName,
                            No = fgro.No,
                            Score = fgro.Score,
                            StudentCount = fgro.CF_Student.Select(x => x.Sys_User).Distinct().Count(),
                            StudentList = fgro.CF_Student.Select(x => x.Sys_User).Distinct()
                        };
            return query;
        }

        /// <summary>
        /// 获取学生信息
        /// </summary>
        /// <param name="finalExaminationID"></param>
        /// <returns></returns>
        public IQueryable<BaseStudentView> GetStudentListForGroup(Guid? SOCDetailID)
        {
            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var query = from a in SOCRepository.GetList(x => x.DQP_SOCDetail.Any(y => y.SOCDetailID == SOCDetailID))
                        from c in a.DQP_SOCStaff.FirstOrDefault(x => x.UserID == curUser.UserID).CF_Student
                        select new BaseStudentView
                        {
                            UserID = c.UserID,
                            LoginID = c.Sys_User.LoginID,
                            UserName = c.Sys_User.Name,
                            SexID = c.SexID,
                            IDNumber = c.IDNumber,
                            InSchoolStatusID = c.InSchoolStatusID,
                            StudentStatus = c.StudentStatus,
                            ClassmajorCode = c.CF_Classmajor.No,
                            ClassmajorName = c.CF_Classmajor.Name,
                        };
            return query;
        }

        public IQueryable<GroupSOCDetailView> GetGroupSOCDetailViewQueryable(Expression<Func<DQP_SOCDetail, bool>> exp)
        {
            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var query = from detail in SOCDetailRepository.GetList(exp)
                        select new GroupSOCDetailView
                        {
                            SOCDetailID = detail.SOCDetailID,
                            StudentTotalNum = detail.DQP_SOC.DQP_SOCStaff.FirstOrDefault(x => x.UserID == curUser.UserID).CF_Student.Distinct().Count(),
                        };
            return query;
        }

        //public List<DQP_SOC> GetStudentsForGroup(Expression<Func<DQP_SOC, bool>> exp)
        //{
        //    var query = SOCRepository.GetList(exp, x => x.CF_Student).ToList();
        //    return query;
        //}

        /// <summary>
        /// 获取学生信息
        /// </summary>
        /// <param name="finalExaminationID"></param>
        /// <returns></returns>
        public IQueryable<BaseStudentView> GetSOCDetailGroupViewStudentList(Guid? SOCDetailGroupID)
        {

            var query = from a in SOCDetailGroupRepository.GetList(x => x.SOCDetailGroupID == SOCDetailGroupID)
                        from c in a.CF_Student
                        select new BaseStudentView
                        {
                            UserID = c.UserID,
                            LoginID = c.Sys_User.LoginID,
                            UserName = c.Sys_User.Name,
                            SexID = c.SexID,
                            IDNumber = c.IDNumber,
                            InSchoolStatusID = c.InSchoolStatusID,
                            StudentStatus = c.StudentStatus,
                            ClassmajorCode = c.CF_Classmajor.No,
                            ClassmajorName = c.CF_Classmajor.Name,
                        };
            return query;
        }


        /// <summary>
        /// 获取学生信息(未分组)
        /// </summary>
        /// <param name="finalExaminationID"></param>
        /// <returns></returns>
        public IQueryable<BaseStudentView> GetNotGroupStudentList(Guid? SOCDetailGroupID)
        {
            var curUser = EMIS.Utility.FormValidate.CustomPrincipal.Current;
            var groupStu = from a in SOCDetailRepository.GetList(x => x.DQP_SOCDetailGroup.Any(y => y.SOCDetailGroupID == SOCDetailGroupID))
                        from gro in a.DQP_SOCDetailGroup
                        from stu in gro.CF_Student
                        select new
                        {
                            UserID = stu.UserID,
                        };
            var gStuID = groupStu.Select(x => x.UserID).Distinct().ToList();
            var query = from a in SOCDetailGroupRepository.GetList(x => x.SOCDetailGroupID == SOCDetailGroupID)
                        from stu in a.DQP_SOCDetail.DQP_SOC.DQP_SOCStaff.FirstOrDefault(y => y.UserID == curUser.UserID).CF_Student
                        join gstu in studentRepository.Entities
                        on stu.UserID equals gstu.UserID
                        where !gStuID.Contains(stu.UserID)
                        select new BaseStudentView
                        {
                            UserID = stu.UserID,
                            LoginID = gstu.Sys_User.LoginID,
                            UserName = gstu.Sys_User.Name,
                            SexID = stu.SexID,
                            IDNumber = stu.IDNumber,
                            InSchoolStatusID = stu.InSchoolStatusID,
                            StudentStatus = stu.StudentStatus,
                            ClassmajorCode = gstu.CF_Classmajor.No,
                            ClassmajorName = gstu.CF_Classmajor.Name,
                        };
            return query;
        }
    }
}