public async Task <Unit> Handle(Command request, CancellationToken cancellationToken)
{
using var tx = new TransactionScope(TransactionScopeAsyncFlowOption.Enabled);
var order = await db.Orders.FirstAsync(o => o.Id == request.OrderId, cancellationToken);
var candidateHero = await db.Heroes.FirstAsync(h => h.Id == request.SelectedHero, cancellationToken);
var availableHeroes = await db.FindHeroForOrder(order);
var heroAvailable = availableHeroes.Any(h => h.Id == candidateHero.Id);
if (!heroAvailable)
{
throw new ApplicationException(($"Hero {candidateHero.Name} not available!"));
}
order.CreateOfferWithHero(candidateHero);
await db.SaveChangesAsync(cancellationToken);
await bpmnService.CompleteTask(request.TaskId, order);
tx.Complete();
return(Unit.Value);
}
public async Task <ICollection <HeroDto> > Handle(Query request, CancellationToken cancellationToken)
{
var order = db.Orders.FirstOrDefault(o => o.Id == request.OrderId);
var availableHeroes = await db.FindHeroForOrder(order);
return(availableHeroes.Select(HeroDto.FromEntity).ToList());
}
