public void Leave(int id)
{
var userEvent = _dbContext.UserEvents
.Include(x => x.Event)
.FirstOrDefault(x => x.Id == id);
if (userEvent == null)
{
return;
}
var groupName = userEvent.Event.Id.ToString();
Groups.Remove(Context.ConnectionId, groupName);
Clients.OthersInGroup(groupName).OnLeave(
new UserDto
{
Id = userEvent.User.Id,
Email = userEvent.User.Email,
ImageUrl = GravatarImageTagHelper.ToGravatarUrl(userEvent.User.Email)
});
_dbContext.UserEvents.Remove(userEvent);
_dbContext.SaveChanges();
}
public void Join(int id)
{
var user = _dbContext.Users
.FirstOrDefault(x => x.UserName == Context.User.Identity.Name);
if (user == null)
{
return;
}
var @event = _dbContext.Events
.FirstOrDefault(x => x.Id == id);
if (@event == null)
{
return;
}
var exist = _dbContext.UserEvents
.Any(x => x.Event.Id == @event.Id && x.User.UserName == Context.User.Identity.Name);
if (exist)
{
return;
}
var userEvent = new UserEvent
{
User = user,
Event = @event
};
var groupName = userEvent.Event.Id.ToString();
Groups.Add(Context.ConnectionId, groupName);
Clients.Group(groupName).OnJoin(
new UserDto
{
Id = userEvent.User.Id,
Email = userEvent.User.Email,
ImageUrl = GravatarImageTagHelper.ToGravatarUrl(userEvent.User.Email)
});
_dbContext.UserEvents.Add(userEvent);
_dbContext.SaveChanges();
}
public void DrawLots(int id)
{
var @event = _dbContext.Events
.Include(x => x.UserEvents)
.ThenInclude(x => x.User)
.Include(x => x.Winner)
.FirstOrDefault(x => x.Id == id);
if (@event == null)
{
return;
}
if ([email protected]())
{
return;
}
var groupName = @event.Id.ToString();
if (@event.Winner != null)
{
Clients.Group(groupName).OnDrawLots(
new UserDto
{
Id = @event.Winner.Id,
Email = @event.Winner.Email,
ImageUrl = GravatarImageTagHelper.ToGravatarUrl(@event.Winner.Email)
});
return;
}
var random = new Random();
var result = random.Next(@event.UserEvents.Count);
var hit = @event.UserEvents.ToArray()[result];
Clients.Group(groupName).OnDrawLots(
new UserDto
{
Id = hit.User.Id,
Email = hit.User.Email,
ImageUrl = GravatarImageTagHelper.ToGravatarUrl(hit.User.Email)
});
@event.Winner = hit.User;
_dbContext.SaveChanges();
}
