public Option <BankAccount> FindBy(Guid id)
{
string eventStreamId = GetEventStreamId(id);
int afterVersion = 0;
const int eventCount = int.MaxValue;
Option <BankAccountSnapshot> latestSnapshotOption = _appendOnlyStore.GetLatestSnapshot <BankAccountSnapshot>(eventStreamId);
if (latestSnapshotOption.IsSome)
{
afterVersion = latestSnapshotOption.Value.Version;
}
var storedEventsOption = _appendOnlyStore.GetStoredEvents(eventStreamId, afterVersion, eventCount);
if (storedEventsOption.IsNone)
{
return(Option.None <BankAccount>());
}
if (latestSnapshotOption.IsSome && storedEventsOption.IsSome)
{
var snapshot = latestSnapshotOption.Value;
var domainEvents = storedEventsOption.Value.Select(x => x.Event);
var bankAccount = BankAccount.ReconstructBankAccount(snapshot, domainEvents);
return(Option.Some(bankAccount));
}
else
{
var domainEvents = storedEventsOption.Value.Select(x => x.Event);
var bankAccount = BankAccount.ReconstructBankAccount(id, domainEvents);
return(Option.Some(bankAccount));
}
}