private async Task <DomainValidationResult <ITransaction> > CreateChargeTransactionAsync(
IMoneyAccount account,
Money money,
TransactionMetadata?metadata = null,
CancellationToken cancellationToken = default
)
{
var result = new DomainValidationResult <ITransaction>();
if (!account.HaveSufficientMoney(money))
{
result.AddFailedPreconditionError("Insufficient funds.");
}
if (result.IsValid)
{
var transaction = account.Charge(money, metadata);
await _accountRepository.CommitAsync(true, cancellationToken);
return(transaction.Cast <Transaction>());
}
return(result);
}
private async Task <DomainValidationResult <ITransaction> > CreateWithdrawTransactionAsync(
IMoneyAccount account,
Money money,
CancellationToken cancellationToken = default
)
{
var result = new DomainValidationResult <ITransaction>();
var transactionBundles = await this.FetchTransactionBundlesAsync(EnumTransactionType.Withdraw, EnumCurrencyType.Money);
if (transactionBundles.All(withdraw => withdraw.Currency.Amount != money.Amount))
{
result.AddFailedPreconditionError(
$"The amount of {nameof(Money)} is invalid. These are valid amounts: [{string.Join(", ", transactionBundles.Select(deposit => deposit.Currency.Amount))}].");
}
if (!account.HaveSufficientMoney(money))
{
result.AddFailedPreconditionError("Insufficient funds.");
}
if (!account.IsWithdrawAvailable())
{
result.AddFailedPreconditionError(
$"Withdraw is unavailable until {account.LastWithdraw?.Add(MoneyAccountDecorator.WithdrawInterval)}. For security reason we limit the number of financial transaction that can be done in {MoneyAccountDecorator.WithdrawInterval.TotalHours} hours.");
}
if (result.IsValid)
{
var transaction = account.Withdraw(money);
await _accountRepository.CommitAsync(true, cancellationToken);
return(transaction.Cast <Transaction>());
}
return(result);
}
