public async Task DeleteRelationAsync(Guid firstUser, Guid secondUser)
{
_logger.LogDebug("Trying to remove users: {firstUser} and {secondUser} relation.", firstUser, secondUser);
if (firstUser == Guid.Empty || secondUser == Guid.Empty)
{
throw new ArgumentNullException(nameof(Guid));
}
try
{
List <FriendsRelation> relationFromRepo = _friendsRelationRepository.Get(x =>
x.FriendId == firstUser && x.UserId == secondUser ||
x.FriendId == secondUser && x.UserId == firstUser)
.ToList();
FriendsRelation relationToRemove = null;
if (relationFromRepo.Count > 0)
{
relationToRemove = relationFromRepo.ElementAt(0);
}
if (relationToRemove != null)
{
_friendsRelationRepository.Remove(relationToRemove);
await _friendsRelationRepository.SaveAsync();
_logger.LogDebug("Users relation: {firstUser} and {secondUser} has been removed.", firstUser, secondUser);
}
}
catch (Exception ex)
{
_logger.LogError(ex, "Error occured during removing the relation.");
throw;
}
}
private ElanUser GetFriendUser(FriendsRelation relation, ElanUser user)
{
if (relation.FirstUser.Id == user.Id)
{
return(relation.SecondUser);
}
return(relation.FirstUser);
}
public async Task <FriendsRelation> CreateRelation(ElanUser firstUser, ElanUser secondUser)
{
var relation = new FriendsRelation
{
FirstUserId = firstUser.Id,
SecondUserId = secondUser.Id,
CreatedDate = DateTime.UtcNow
};
await _dataService.GetSet <FriendsRelation>().AddAsync(relation);
await _dataService.SaveDbAsync();
return(relation);
}
public bool CheckIfAreFriends(Guid firstUser, Guid secondUser)
{
_logger.LogDebug("Trying to check users: {firstUser} and {secondUser} relation exist.", firstUser, secondUser);
if (firstUser == Guid.Empty || secondUser == Guid.Empty)
{
throw new ArgumentNullException(nameof(Guid));
}
try
{
FriendsRelation relation = _friendsRelationRepository.GetById(new { firstUser, secondUser });
return(relation != null);
}
catch (Exception ex)
{
_logger.LogError(ex, "Error occured during checking the relation.");
throw;
}
}
