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

namespace EMIS.DataLogic.TerminatePrinter
{
    public class StudentPrintTimesDAL
    {
        public StudentPrintTimesRepository StudentPrintTimesRepository { get; set; }
        public StudentRepository StudentRepository { get; set; }
        public ClassmajorRepository ClassmajorRepository { get; set; }
        public GrademajorRepository GrademajorRepository { get; set; }
        public FacultymajorRepository FacultymajorRepository { get; set; }
        public CollegeRepository CollegeRepository { get; set; }
        public UserRepository UserRepository { get; set; }
        public InSchoolSettingRepository InSchoolSettingRepository { get; set; }
        public PrintControlRepository PrintControlRepository { get; set; }

        public IQueryable<StudentPrintTimesView> GetStudentPrintTimesViewQueryable(Expression<Func<CF_Facultymajor, bool>> facultyExp,
            Expression<Func<CF_Grademajor, bool>> gradeExp,
            Expression<Func<CF_Classmajor, bool>> classExp)
        {
            var query = from times in StudentPrintTimesRepository.Entities 
                        from student in StudentRepository.Entities.Where(x => times.UserID == x.UserID) 
                        from user in UserRepository.Entities.Where(x => student.UserID == x.UserID) 
                        from classmajor in ClassmajorRepository.Entities.Where(classExp).Where(x => student.ClassmajorID == x.ClassmajorID)
                        from grade in GrademajorRepository.Entities.Where(gradeExp).Where(x => classmajor.GrademajorID == x.GrademajorID)
                        from faculty in FacultymajorRepository.Entities.Where(facultyExp).Where(x => grade.FacultymajorID == x.FacultymajorID)
                        from college in CollegeRepository.Entities.Where(x => faculty.CollegeID == x.CollegeID)
                        from inschool in InSchoolSettingRepository.Entities.Where(x => student.InSchoolStatusID == x.InSchoolStatusID) 
                        select new StudentPrintTimesView
                        {
                            StudentPrintTimesID = times.StudentPrintTimesID,
                            CollegeID = college.CollegeID,
                            CollegeNo = college.No,
                            CollegeName = college.Name,
                            YearID = grade.GradeID,
                            StandardID = faculty.StandardID,
                            ClassmajorID = classmajor.ClassmajorID,
                            ClassmajorNo = classmajor.No,
                            ClassmajorName = classmajor.Name,
                            UserID = student.UserID,
                            LoginID = user.LoginID,
                            Name = user.Name,
                            IsInSchool = inschool.IsSelected,
                            Times = times.Times,
                            RecordStatus = times.RecordStatus,
                            CreateUserID = times.CreateUserID,
                            CreateTime = times.CreateTime,
                            ModifyUserID = times.ModifyUserID,
                            ModifyTime = times.ModifyTime
                        };
            return query;
        }

        public IQueryable<StudentPrintMessageView> GetStudentPrintMessageViewQueryable(Expression<Func<Sys_User, bool>> exp)
        {
            var query = (from user in UserRepository.GetList(exp)
                         from student in StudentRepository.Entities.Where(x => user.UserID == x.UserID)
                         from classmajor in ClassmajorRepository.Entities.Where(x => student.ClassmajorID == x.ClassmajorID)
                         from grade in GrademajorRepository.Entities.Where(x => classmajor.GrademajorID == x.GrademajorID)
                         from inschool in InSchoolSettingRepository.Entities.Where(x => student.InSchoolStatusID == x.InSchoolStatusID)
                            .DefaultIfEmpty() 
                         from control in PrintControlRepository.Entities.Where(x => grade.GradeID == x.YearID)
                            .DefaultIfEmpty()
                         from times in StudentPrintTimesRepository.Entities.Where(x => user.UserID == x.UserID)
                            .DefaultIfEmpty()
                         select new StudentPrintMessageView 
                         { 
                             UserID = user.UserID,
                             TotalPrintTimes = (inschool.IsSelected == true) ? (control.Times ?? 0) : 0,
                             PrintTimes = (times.Times ?? 0) 
                         }
                         );

            return query;
        }
    }
}