protected override void OnModelCreating(ModelBuilder modelBuilder)
{
modelBuilder.Entity <AccountData>()
.HasOne(x => x.User)
.WithMany(x => x.Accounts)
.HasForeignKey(x => x.UserId);
modelBuilder.Entity <AccountEntryData>()
.HasOne(x => x.Account)
.WithMany(x => x.Entries)
.HasForeignKey(x => x.AccountId);
modelBuilder.Entity <AccountTransactionData>()
.HasOne <AccountEntryData>()
.WithOne()
.HasForeignKey <AccountTransactionData>(x => x.DebitEntryId);
modelBuilder.Entity <AccountTransactionData>()
.HasOne <AccountEntryData>()
.WithOne()
.HasForeignKey <AccountTransactionData>(x => x.CreditEntryId);
modelBuilder.Entity <UserData>().HasData(new UserData()
{
Id = SystemAccount.SystemUserId, Email = "*****@*****.**", FirstName = "SYSTEM", LastName = "SYSTEM"
});
modelBuilder.Entity <AccountData>().HasData(
new AccountData()
{
Id = SystemAccount.FromCurrency(AccountCurrency.UAH).Id, Currency = (int)AccountCurrency.UAH, UserId = SystemAccount.SystemUserId
},
new AccountData()
{
Id = SystemAccount.FromCurrency(AccountCurrency.EUR).Id, Currency = (int)AccountCurrency.EUR, UserId = SystemAccount.SystemUserId
},
new AccountData()
{
Id = SystemAccount.FromCurrency(AccountCurrency.USD).Id, Currency = (int)AccountCurrency.USD, UserId = SystemAccount.SystemUserId
});
}
public async Task <BuyCurrencyResult> Handle(BuyCurrencyCommand request, CancellationToken cancellationToken)
{
var baseAccount = await _accountRepository.FindAsync(request.AccountId);
var currencyAccount = await _accountRepository.FindAsync(request.CurrencyAccountId);
var exchangeBaseAccount = SystemAccount.FromCurrency(baseAccount.Currency);
var exchangeCurrencyAccount = SystemAccount.FromCurrency(currencyAccount.Currency);
var exchangeRate = await _currencyExchangeAdapter.GetExchangeRate(currencyAccount.Currency, baseAccount.Currency);
var baseAmount = request.Amount * exchangeRate;
var debitBaseAccount = baseAccount.Transfer(exchangeBaseAccount, baseAmount.Value, $"Buy {request.Amount} {currencyAccount.Currency.ToString()} operation");
var creditCurrencyAccount = exchangeCurrencyAccount.Transfer(currencyAccount, request.Amount, $"Buy {request.Amount} {currencyAccount.Currency.ToString()} operation");
await _accountTransactionRepository.SaveAsync(debitBaseAccount);
await _accountTransactionRepository.SaveAsync(creditCurrencyAccount);
return(new BuyCurrencyResult());
}