/// <summary>
/// Converts allowed currencies into USD.
/// </summary>
/// <param name="money">Money.</param>
/// <returns>Money.</returns>
public Task <PositiveMoney> ConvertToUSD(PositiveMoney money)
{
// hardcoded rates from https://www.xe.com/currency/usd-us-dollar
if (money.GetCurrency() == Currency.Dollar)
{
return(Task.FromResult(money));
}
if (money.GetCurrency() == Currency.Euro)
{
return(Task.FromResult(
new PositiveMoney(
money.ToMoney().ToDecimal() * 0.89021m,
Currency.Euro.ToString())));
}
if (money.GetCurrency() == Currency.Canadian)
{
return(Task.FromResult(
new PositiveMoney(
money.ToMoney().ToDecimal() * 1.35737m,
Currency.Canadian.ToString())));
}
if (money.GetCurrency() == Currency.BritishPound)
{
return(Task.FromResult(
new PositiveMoney(
money.ToMoney().ToDecimal() * 0.80668m,
Currency.BritishPound.ToString())));
}
if (money.GetCurrency() == Currency.Krona)
{
return(Task.FromResult(
new PositiveMoney(
money.ToMoney().ToDecimal() * 9.31944m,
Currency.Krona.ToString())));
}
if (money.GetCurrency() == Currency.Real)
{
return(Task.FromResult(
new PositiveMoney(
money.ToMoney().ToDecimal() * 5.46346m,
Currency.Krona.ToString())));
}
throw new CurrencyNotAllowedException();
}
public async Task Convert()
{
var serviceCollection = new ServiceCollection();
serviceCollection.AddHttpClient(CurrencyExchangeService.HttpClientName);
serviceCollection.AddSingleton <CurrencyExchangeService>();
var serviceProvider = serviceCollection.BuildServiceProvider();
var sut = serviceProvider.GetRequiredService <CurrencyExchangeService>();
PositiveMoney usdMoney = new PositiveMoney(100, "EUR");
PositiveMoney actual = await sut.ConvertToUSD(usdMoney);
Assert.True(actual.ToMoney().ToDecimal() > 100);
Assert.Equal("USD", actual.GetCurrency().ToString());
}
internal bool LessThan(PositiveMoney amount)
{
return(_money < amount.ToMoney()._money);
}
public TransactionModel(PositiveMoney amount, string description, DateTime transactionDate)
{
this.Amount = amount.ToMoney().ToDecimal();
this.Description = description;
this.TransactionDate = transactionDate;
}
