private void Run(string code, DateTime startDate, DateTime endDate)
{
Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
//Console.WriteLine("Wait a moment, informations are being retrieved.");
try {
InfoBlock.Text = "Fetching data, please wait...";
AverageBlock.Text = StandardDeviationBlock.Text = MinBlock.Text = MaxBlock.Text = LargestDiffBlock.Text = LargestDiffDatesBlock.Text = "";
var currencyInfoTools = new CurrencyInfoTools(
CurrencyInfoRetriever.GetCurrencyInfoListFromFiles(code,
CurrencyInfoRetriever.GetCurrencyXMLFilesNamesListFromFile(startDate, endDate)));
AverageBlock.Text = $"{currencyInfoTools.Average()}";
StandardDeviationBlock.Text = $"{currencyInfoTools.StandardDeviation()}";
MinBlock.Text = $"{currencyInfoTools.Min().ToString(CurrencyInfo.DisplayOptions.ExchangeRate, CurrencyInfo.DisplayOptions.Date)}";
MaxBlock.Text = $"{currencyInfoTools.Max().ToString(CurrencyInfo.DisplayOptions.ExchangeRate, CurrencyInfo.DisplayOptions.Date)}";
foreach (var currPair in currencyInfoTools.LargestExchangeRatesDifferences())
{
LargestDiffBlock.Text = $"{Math.Abs(currPair.First() - currPair.Last())}";
LargestDiffDatesBlock.Text += $"{currPair.First().ToString(CurrencyInfo.DisplayOptions.ExchangeRate, CurrencyInfo.DisplayOptions.Date)}" +
$" - {currPair.Last().ToString(CurrencyInfo.DisplayOptions.ExchangeRate, CurrencyInfo.DisplayOptions.Date)}\n";
}
InfoBlock.Text = "Success";
} catch (Exception) {
InfoBlock.Text = "Error occurred.";
}
}
static void Run(string[] args)
{
Encoding.RegisterProvider(CodePagesEncodingProvider.Instance);
Console.WriteLine("Wait a moment, informations are being retrieved.");
DateTime ConvertToDate(string s)
{
var parts = s.Split("-");
if (parts.Length != 3)
{
throw new ArgumentException("Incorrect date format");
}
try {
var intParts = parts.Select(el => int.Parse(el)).ToArray();
return(new DateTime(intParts[0], intParts[1], intParts[2]));
} catch (Exception) {
throw new ArgumentException("Bad date format");
}
}
if (args.Length != 3 || args[0].Length != 3)
{
throw new ArgumentException("Incorrect command.");
}
var code = args[0].ToUpper();
var startDate = ConvertToDate(args[1]);
var endDate = ConvertToDate(args[2]);
//var startDate = new DateTime(2018, 9, 1);
//var endDate = new DateTime(2018, 9, 20);
//var code = "EUR";
if (startDate > DateTime.Now)
{
throw new ArgumentException("Start date must be in the past.");
}
if (endDate < startDate)
{
throw new ArgumentException("End date must be later than start date.");
}
if (startDate.Year < 2002)
{
throw new ArgumentException("There is no records before 2002.");
}
var currencyInfoTools = new CurrencyInfoTools(
CurrencyInfoRetriever.GetCurrencyInfoListFromFiles(code,
CurrencyInfoRetriever.GetCurrencyXMLFilesNamesListFromFile(startDate, endDate)));
Console.WriteLine($"Average rate: {currencyInfoTools.Average()}");
Console.WriteLine($"Standard deviation: {currencyInfoTools.StandardDeviation()}");
Console.WriteLine($"Minimum rate: ${currencyInfoTools.Min().ToString(CurrencyInfo.DisplayOptions.ExchangeRate, CurrencyInfo.DisplayOptions.Date)}");
Console.WriteLine($"Minimum rate: ${currencyInfoTools.Max().ToString(CurrencyInfo.DisplayOptions.ExchangeRate, CurrencyInfo.DisplayOptions.Date)}");
foreach (var currPair in currencyInfoTools.LargestExchangeRatesDifferences())
{
Console.WriteLine($"Largest difference: {Math.Abs(currPair.First() - currPair.Last())}" +
$" ({currPair.First().ToString(CurrencyInfo.DisplayOptions.ExchangeRate, CurrencyInfo.DisplayOptions.Date)}" +
$" - {currPair.Last().ToString(CurrencyInfo.DisplayOptions.ExchangeRate, CurrencyInfo.DisplayOptions.Date)})"
);
}
}
