public async Task <IReadOnlyList <AttendanceDto> > HandleAsync(BrowseAttendances query)
{
var participant = await _participantsRepository.GetAsync(query.ConferenceId, query.UserId);
if (participant is null)
{
return(null);
}
var attendances = new List <AttendanceDto>();
var tracks = await _agendasApiClient.GetAgendaAsync(query.ConferenceId);
var slots = tracks.SelectMany(x => x.Slots.OfType <RegularAgendaSlotDto>()).ToArray();
foreach (var attendance in participant.Attendances)
{
var slot = slots.Single(x => x.AgendaItem.Id == attendance.AttendableEventId);
attendances.Add(new AttendanceDto
{
ConferenceId = query.ConferenceId,
EventId = slot.Id,
From = attendance.From,
To = attendance.To,
Title = slot.AgendaItem.Title,
Description = slot.AgendaItem.Description,
Level = slot.AgendaItem.Level
});
}
return(attendances);
}
public async Task HandleAsync(TicketPurchased @event)
{
var participant = await _participantsRepository.GetAsync(@event.ConferenceId, @event.UserId);
if (participant is not null)
{
return;
}
participant = new Participant(Guid.NewGuid(), @event.ConferenceId, @event.UserId);
await _participantsRepository.AddAsync(participant);
_logger.LogInformation($"Added a participant with ID: '{participant.Id}' " +
$"for conference: '{participant.ConferenceId}', user: '******'.");
}
public async Task HandleAsync(AttendEvent command)
{
var attendableEvent = await _attendableEventsRepository.GetAsync(command.Id);
if (attendableEvent is null)
{
throw new AttendableEventNotFoundException(command.Id);
}
var participant = await _participantsRepository
.GetAsync(attendableEvent.ConferenceId, command.ParticipantId);
if (participant is null)
{
throw new ParticipantNotFoundException(attendableEvent.ConferenceId, command.ParticipantId);
}
attendableEvent.Attend(participant);
await _participantsRepository.UpdateAsync(participant);
await _attendableEventsRepository.UpdateAsync(attendableEvent);
}