semesterWork/data/Repository/IGroupRepository.cs

using Data.DAO;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace data.Repository
{
    public interface IGroupRepository
    {
        public IEnumerable<Group> GetAllGroup();

        public bool AddGroup(Group group);

        public bool addGroupWithStudent(Group groups, IEnumerable<Student> students);

        public bool DeleteGroup(int groupId);

        public Group GetGroupWithSubjects(int groupId);

        public void AddStudentsToGroup(List<Student> students);

        public Group GetGroupById(int groupId);


        public Subject GetSubjectById(int subjectId);

        public Subject GetSubjectByName(string subjectName);

        public void AddSubject(Subject subject);

        List<Subject> GetGroupSubjects(int groupId);

        List<Subject> GetSubjectsByGroupId(int groupId);

        bool AddSubjectToGroup(int groupId, Subject subject);


        public void DeleteAllAttendances();
        public void DeleteAttendancesByGroup(int groupId);


        void AddAttendance(Attendance attendance);


        Visit GetVisitById(int visitId);


        int GetGroupIdBySubjectName(string subjectName);

        public IEnumerable<Attendance> GetAttendances(int groupId, string subject = null, DateTime? date = null, int? studentId = null);

        Attendance GetAttendanceByDateStudentAndLesson(DateTime date, int studentId, int lessonNumber);
        void UpdateAttendance(Attendance attendance);

        void RemoveStudentsFromGroup(int groupId);


        void RemoveStudentsFromGroupByIds(int groupId, List<int> studentIds);

    }
}