using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using EMIS.ViewModel.MinorManage.MinorClass;
using System.Linq.Expressions;
using EMIS.Entities;
using EMIS.DataLogic.Repositories;
using EMIS.ViewModel.MinorManage.MinorApply;
using EMIS.ViewModel.MinorManage.MinorSetting;
using EMIS.ViewModel.Students;
using EMIS.ViewModel;

namespace EMIS.DataLogic.MinorManage.MinorApply
{
    public class StudentMinorRegistApplyDAL
    {
        public ClassminorRepository classminorRepository { get; set; }
        public GrademinorRepository grademinorRepository { get; set; }
        public SchoolyearRepository schoolyearRepository { get; set; }
        public CollegeRepository collegeRepository { get; set; }
        public MinorStandardSettingRepository minorStandardSettingRepository { get; set; }
        public UserRepository userRepository { get; set; }
        public StudentRepository studentRepository { get; set; }
        public ClassmajorRepository classmajorRepository { get; set; }
        public MinorControlRepository minorControlRepository { get; set; }
        public GrademajorRepository grademajorRepository { get; set; }
        public FacultymajorRepository facultymajorRepository { get; set; }
        public StudentMinorRegistRepository studentMinorRegistRepository { get;set; }

        public IQueryable<GrademinorView> GetMinorClassViewQueryable(Expression<Func<CF_Grademinor, bool>> exp, Guid userID, int? status)
        {

            var stuMinorResit = studentMinorRegistRepository.GetList(x => true);
            var query = from gr in grademinorRepository.GetList(exp)
                        join sr in schoolyearRepository.Entities
                        on gr.SchoolyearID equals sr.SchoolyearID
                        join col in collegeRepository.Entities
                        on gr.CollegeID equals col.CollegeID
                        //join cla in classminorRepository.Entities
                        //on gr.GrademinorID equals cla.GrademinorID
                        //into gcla
                        //from dcla in gcla.DefaultIfEmpty()
                        select new GrademinorView
                        {
                            GrademinorID = gr.GrademinorID,
                            SchoolyearID = gr.SchoolyearID,
                            CollegeID = col.CollegeID,
                            CollegeName = col.Name,
                            CollegeNo = col.No,
                            StudentLimit = gr.StudentLimit,
                            SchoolyearCode = sr.Code,
                            YearID = gr.YearID,
                            StandardID = gr.StandardID,
                            OpenStatus = gr.RecordStatus,
                            ApplyNumber = gr.EM_StudentMinorRegist.Where(x => x.RecordStatus != status).Count(),
                            ApplyStatus = stuMinorResit.Any(x => x.UserID == userID && x.GrademinorID == gr.GrademinorID && x.RecordStatus != status) ? true : false,
                            CourseCount = gr.CF_GrademinorApplication.EM_MinorPlanApplication.Select(x => x.CoursematerialID).Count(),
                            CanSelect = gr.RecordStatus == (int)CF_GrademinorStatus.Cancelled ? true : (stuMinorResit.Any(x => x.UserID == userID && x.GrademinorID == gr.GrademinorID && x.RecordStatus != status) ? false : true),
                            RecordStatus = stuMinorResit.Any(x => x.UserID == userID && x.GrademinorID == gr.GrademinorID) ? stuMinorResit.Where(x => x.UserID == userID && x.GrademinorID == gr.GrademinorID).FirstOrDefault().RecordStatus : null,
                            //cla.CF_ClassminorStudent.Any(x => x.UserID == userID) ? false : true,
                        };
            return query;
        }

        public int? GetStandardIDListByUserID(Guid userID)
        {
            var query = from stu in studentRepository.GetList(x => x.UserID == userID)
                        join cla in classmajorRepository.Entities
                        on stu.ClassmajorID equals cla.ClassmajorID
                        select new
                        {
                            StandardID = cla.CF_Grademajor.CF_Facultymajor.StandardID,
                        };
            if (query.FirstOrDefault() != null)
            {
                return query.FirstOrDefault().StandardID;
            }
            return null;
        }

        public IQueryable<MinorControlView> GetMinorControlViewByUserIDAndSchoolyear(Guid userID, Guid schoolYearID)
        {
            var mrquery = from mcr in minorControlRepository.GetList(x => x.SchoolyearID == schoolYearID)
                          select new MinorControlView
                          {
                              MinorControlID = mcr.MinorControlID,
                              CollegeID = mcr.CollegeID,
                              //CollegeName = cr.Name,
                              SchoolyearID = mcr.SchoolyearID,
                              //SchoolyearCode = year.Code,
                              GradeYearID = mcr.GradeyearID,
                              StartDate = mcr.StartDate,
                              EndDate = mcr.EndDate
                          };
            var stuquery = from stu in studentRepository.GetList(x => x.UserID == userID)
                           join cla in classmajorRepository.Entities
                           on stu.ClassmajorID equals cla.ClassmajorID
                           join gra in grademajorRepository.Entities
                           on cla.GrademajorID equals gra.GrademajorID
                           join fac in facultymajorRepository.Entities
                           on gra.FacultymajorID equals fac.FacultymajorID
                           join col in collegeRepository.Entities
                           on fac.CollegeID equals col.CollegeID
                           select new StudentsView
                           {
                               UserID = stu.UserID,
                               CollegeID = col.CollegeID,
                               Years = gra.GradeID,
                           };
            if (mrquery.Any(x => x.GradeYearID == stuquery.FirstOrDefault().Years))
            {
                if (mrquery.Any(x => x.GradeYearID == stuquery.FirstOrDefault().Years && x.CollegeID == stuquery.FirstOrDefault().CollegeID))
                {
                    return mrquery.Where(x => x.GradeYearID == stuquery.FirstOrDefault().Years && x.CollegeID == stuquery.FirstOrDefault().CollegeID);
                }
                else
                {
                    return mrquery.Where(x => x.GradeYearID == stuquery.FirstOrDefault().Years);
                }
            }
            else
            {
                return null;
            }
        }


        //public 
    }
}