private async Task <TransactionCorrectness> HasBalance(Guid fromAccountId, int amount)
{
TransactionCorrectness transactionCorrectness = new TransactionCorrectness(true);
int balance = await _transactionRepository.GetBalance(fromAccountId);
if (balance < amount)
{
transactionCorrectness.IsValid = false;
transactionCorrectness.Reason = "There is not enough money in the account";
}
return(transactionCorrectness);
}
private async Task <TransactionCorrectness> AccountIdsCorrectness(Guid fromAccountId, Guid toAccountId)
{
TransactionCorrectness transactionCorrectness = new TransactionCorrectness(true);
if (await _transactionRepository.IsAccountExistsAsync(fromAccountId) == false)
{
transactionCorrectness.IsValid = false;
transactionCorrectness.Reason = "The fromAccountId doesn't exist";
}
else if (await _transactionRepository.IsAccountExistsAsync(toAccountId) == false)
{
transactionCorrectness.IsValid = false;
transactionCorrectness.Reason = "The toAccountId doesn't exist";
}
return(transactionCorrectness);
}
public async Task <TransactionCreated> CreateTransaction(Transaction transaction)
{
TransactionCorrectness transactionCorrectness = await AccountIdsCorrectness(transaction.FromAccountId, transaction.ToAccountId);
if (transactionCorrectness.IsValid == true)
{
transactionCorrectness = await HasBalance(transaction.FromAccountId, transaction.Amount);
if (transactionCorrectness.IsValid == true)
{
await DoTransaction(transaction);
}
}
return(new TransactionCreated()
{
TransactionId = transaction.TransactionId,
IsSucceeded = transactionCorrectness.IsValid,
FailureReason = transactionCorrectness.Reason
});
}
