public async Task AddAsync(TicketSaleDto dto)
{
var conference = await _conferenceRepository.GetAsync(dto.ConferenceId);
if (conference is null)
{
throw new ConferenceNotFoundException(dto.ConferenceId);
}
if (conference.ParticipantsLimit.HasValue)
{
var ticketsCount = await _ticketRepository.CountForConferenceAsync(conference.Id);
if (ticketsCount + dto.Amount > conference.ParticipantsLimit)
{
throw new TooManyTicketsException(conference.Id);
}
}
var ticketSale = new TicketSale(dto.ConferenceId, dto.Name, dto.Price, dto.Amount, dto.From, dto.To);
_ticketSaleRepository.Add(ticketSale);
await _ticketSaleRepository.UnitOfWork.SaveChangesAsync();
if (ticketSale.Amount.HasValue)
{
var tickets = new List <Ticket>();
for (var i = 0; i < ticketSale.Amount; i++)
{
var ticket = _ticketsFactory.Generate(conference.Id, ticketSale.Price, ticketSale);
tickets.Add(ticket);
}
_ticketRepository.AddMany(tickets);
await _ticketRepository.UnitOfWork.SaveChangesAsync();
}
}
public async Task PurchaseAsync(Guid conferenceId, Guid userId)
{
var conference = await _conferencesRepository.GetAsync(conferenceId);
if (conference is null)
{
throw new ConferenceNotFoundException(conferenceId);
}
var ticket = await _ticketsRepository.GetAsync(conferenceId, userId);
if (ticket is not null)
{
throw new TicketAlreadyPurchasedException(conferenceId, userId);
}
var utcNow = _dateTimeService.GetDateTimeUtcNow();
var ticketSale = await _ticketSaleRepository.GetCurrentForConferenceAsync(conferenceId, utcNow);
if (ticketSale is null)
{
throw new TicketSaleUnavailableException(conferenceId);
}
if (ticketSale.Amount.HasValue)
{
await PurchaseAvailableAsync(ticketSale, userId);
return;
}
ticket = _ticketsFactory.Generate(conferenceId, ticketSale.Price, ticketSale);
ticket.Purchase(userId, utcNow, ticketSale.Price);
_ticketsRepository.Add(ticket);
await _ticketsRepository.UnitOfWork.SaveChangesAsync();
}