public IEnumerable<IEvent> Register(int id, RegisterNewCustomerCommand cmd, CompanyIntelligenceReport report)
{
if (report.IsBankrupt)
yield return new CustomerRegistrationWasRefused(cmd.RegistrationId, "Customer's company is bankrupt");
var isPremium = IsPremiumCompany(report);
yield return ApplyEvent(new NewCustomerWasRegistered(cmd.RegistrationId, id, isPremium, cmd.FirstName, cmd.LastName, cmd.Email, cmd.WorksForCompanyID));
}
public IEnumerable<IEvent> ChangeCompany(int newCompanyId, CompanyIntelligenceReport report)
{
EnsureIsRegistered("change company");
var isPremiumCompany = IsPremiumCompany(report);
if (!_isPremium && isPremiumCompany)
yield return ApplyEvent(new CustomerWasAwardedPremiumStatus(_id));
else
{
if (_isPremium && !isPremiumCompany)
yield return ApplyEvent(new CustomerPremiumStatusRevoked(_id, "Customer changed workplace to a non-premium company"));
if (report.IsBankrupt)
yield return ApplyEvent(new CustomerLostBuyingCapability(_id, "Customer changed workplace to a bankrupt company"));
}
}
// ... handlers for other commands
private bool IsPremiumCompany(CompanyIntelligenceReport report)
{
return(!report.IsBankrupt &&
(report.AccumulatedSales > 1000000 || report.LastQuarterSales > 10000));
}