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);
}
}
dto.Id = Guid.NewGuid();
var ticketSale = new TicketSale
{
Id = dto.Id,
ConferenceId = dto.ConferenceId,
From = dto.From,
To = dto.To,
Amount = dto.Amount,
Price = dto.Price,
Name = dto.Name
};
await _ticketSaleRepository.AddAsync(ticketSale);
_logger.LogInformation($"Added a ticket sale conference with ID: '{conference.Id}' ({dto.From} - {dto.To}).");
if (ticketSale.Amount.HasValue)
{
_logger.LogInformation($"Generating {ticketSale.Amount} tickets for conference with ID: '{conference.Id}'...");
var tickets = new List <Ticket>();
for (var i = 0; i < ticketSale.Amount; i++)
{
var ticket = _ticketGenerator.Generate(conference.Id, ticketSale.Id, ticketSale.Price);
tickets.Add(ticket);
}
await _ticketRepository.AddManyAsync(tickets);
}
}
public async Task PurchaseAsync(Guid conferenceId, Guid userId)
{
var conference = await _conferenceRepository.GetAsync(conferenceId);
if (conference is null)
{
throw new ConferenceNotFoundException(conferenceId);
}
var ticket = await _ticketRepository.GetAsync(conferenceId, userId);
if (ticket is not null)
{
throw new TicketAlreadyPurchasedException(conferenceId, userId);
}
var now = _clock.CurrentDate();
var ticketSale = await _ticketSaleRepository.GetCurrentForConferenceAsync(conferenceId, now);
if (ticketSale is null)
{
throw new TicketSaleUnavailableException(conferenceId);
}
if (ticketSale.Amount.HasValue)
{
await PurchaseAvailableAsync(ticketSale, userId, ticketSale.Price);
return;
}
ticket = _generator.Generate(conferenceId, ticketSale.Id, ticketSale.Price);
ticket.Purchase(userId, _clock.CurrentDate(), ticketSale.Price);
await _ticketRepository.AddAsync(ticket);
_logger.LogInformation($"Ticket with ID: '{ticket.Id}' was generated for the conference: " +
$"'{conferenceId}' by user: '******'.");
await _messageBroker.PublishAsync(new TicketPurchased(ticket.Id, conferenceId, userId));
}