Raspisanie/Zurnal/Date/Repository/SQLRepos/SQLNado.cs

using Zurnal.Date.LocalDate;
using Zurnal.domain.Models;
using Zurnal.RemaDateBase.DateDao;

namespace Data.Repository
{
    public class SQLGroupRepositoryImpl:IGroupRepository
    {
        private readonly RemoteDateBaseContext _remoteDataBaseContext;

        public SQLGroupRepositoryImpl(RemoteDateBaseContext remoteDataBaseContext) {
               _remoteDataBaseContext = remoteDataBaseContext;
        }

        public List<GroupDao> AllGroup => throw new NotImplementedException();

        public bool AddGroup(GroupLocalEntity newGroup)
        {
            GroupDao groupDao = new GroupDao { GroupName = newGroup.Name };
            var result = _remoteDataBaseContext.Group.Add(groupDao);
            if (result != null) { 
                _remoteDataBaseContext.SaveChanges();
                return true; }
            return false;
        }

        public List<GroupLocalEntity> GetAllGroup()
        {
            return _remoteDataBaseContext.Group.Select(group => new GroupLocalEntity{ 
                Id = group.Id, 
                Name = group.GroupName}
                ).ToList();
        }

        public List<GroupLocalEntity> GetAllGroups() => LocalStaticData.groups;

        public GroupLocalEntity GetGroupById(int groupID)
        {
            throw new NotImplementedException();
        }

        public bool RemoveGroupById(int groupID)
        {
            throw new NotImplementedException();
        }

        public bool UpdateGroupById(int groupID, GroupLocalEntity updatedGroup)
        {
            throw new NotImplementedException();
        }
    }

 public class SQLPresenceRepositoryImpl: IPresenceRepository
{
private readonly RemoteDateBaseContext _remoteDatabaseContext;

    public SQLPresenceRepositoryImpl(RemoteDateBaseContext remoteDatabaseContext)
    {
        _remoteDatabaseContext = remoteDatabaseContext;
    }
    public DateOnly? GetLastDateByGroupId(int groupId)
    {
        var lastDate = _remoteDatabaseContext.Presence
            .Where(p => p.GroupId == groupId)
            .OrderByDescending(p => p.Date)
            .Select(p => p.Date)
            .FirstOrDefault();

        return lastDate == default ? (DateOnly?)null : lastDate;
    }

}

}