public IActionResult LeaveGroup(int id)
{
var user = _userManager.GetUserAsync(User).Result;
var oldModerator = user.Id;
var activeGroup = _groupHandler.GetById(id);
var users = _usersInGroupHandler.GetUsersByGroup(id);
_usersInGroupHandler.DeleteUserIntoGroup(id, user.Id);
_hubContext.Clients.Group(activeGroup.GroupName).SendAsync("NotifyGroup", $"{user.UserName} left the group");
if (_usersInGroupHandler.GetUsersByGroup(id).Count < 1)
{
_groupHandler.Delete(activeGroup);
}
else
{
if (user.Id == activeGroup.ModeratorId)
{
var nextUser = _usersInGroupHandler.GetUsersByGroup(id).FirstOrDefault(l => l.UserId != oldModerator);
_groupHandler.ChangeModeratorInGroup(id, nextUser.UserId);
_hubContext.Clients.User(_userManager.FindByIdAsync(nextUser.UserId).Result.UserName).SendAsync("ReceiveMessageNotify", user.UserName, "You have become a moderator of the group: " + activeGroup.GroupName);
}
}
return(RedirectToAction(nameof(ChatUsers)));
}
