static void Main(string[] args)
{
Console.Write("Enter currency:");
string inputCurrency1 = Console.ReadLine();
Console.Write("Enter amount:");
decimal amount1 = Convert.ToDecimal(Console.ReadLine());
Console.Write("Enter currency:");
string inputCurrency2 = Console.ReadLine();
Console.Write("Enter date(YYYY-MM-DD): ");
string dateStr = Console.ReadLine();
DateTime convertedDate;
bool isDateType = DateTime.TryParse(dateStr, out convertedDate);
string apiUrl = "";
if (isDateType)
{
apiUrl = ConfigurationManager.AppSettings.Get("apiUrl") + dateStr + "?" + ConfigurationManager.AppSettings.Get("access_key");
}
else
{
apiUrl = ConfigurationManager.AppSettings.Get("apiUrl") + "latest?" + ConfigurationManager.AppSettings.Get("access_key");
}
ExchangeRates ex = new ExchangeRates();
var c1 = ex.GetExchangeRate(apiUrl, inputCurrency1);
var c2 = ex.GetExchangeRate(apiUrl, inputCurrency2);
if (c1.currency == null || c2.currency == null)
{
Console.WriteLine("Wrong input");
return;
}
Console.WriteLine("\n--------- Exchange rates ----------");
decimal c1_rate = c1.rates / c1.rates;
decimal c2_rate = c2.rates / c1.rates;
Console.WriteLine($"{c1.currency}: {c1.rates / c1.rates} = {c2.currency}: {c2.rates / c1.rates}");
decimal currency1_amount = amount1 * c1_rate;
decimal currency2_amount = amount1 * c2_rate;
Console.WriteLine($"{c1.currency}: {currency1_amount} = {c2.currency}: {currency2_amount}");
}