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Utils.cs
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Utils.cs
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using System.Globalization;
namespace AdaCredit;
public static class Utils
{
// source: http://rajeshbailwal.blogspot.com/2012/03/password-in-c-console-application.html
public static string ReadPassword()
{
string password = "";
ConsoleKeyInfo info = Console.ReadKey(true);
while (info.Key != ConsoleKey.Enter)
{
if (info.Key != ConsoleKey.Backspace)
{
Console.Write("*");
password += info.KeyChar;
}
else if (info.Key == ConsoleKey.Backspace)
{
if (!string.IsNullOrEmpty(password))
{
// remove one character from the list of password characters
password = password.Substring(0, password.Length - 1);
// get the location of the cursor
int pos = Console.CursorLeft;
// move the cursor to the left by one character
Console.SetCursorPosition(pos - 1, Console.CursorTop);
// replace it with space
Console.Write(" ");
// move the cursor to the left by one character again
Console.SetCursorPosition(pos - 1, Console.CursorTop);
}
}
info = Console.ReadKey(true);
}
// add a new line because user pressed enter at the end of their password
Console.WriteLine();
return password;
}
public static IEnumerable<string> GetTransactionFiles(DirectoryInfo directoryInfo)
=> directoryInfo.GetFiles().Where(x => x.Extension == ".csv").Select(x => x.Name)
.Select(x => x.Substring(0, x.Length-4)).Where(
x => DateTime.TryParseExact(
x.Substring(x.LastIndexOf('-') + 1),
"yyyyMMdd",
CultureInfo.InvariantCulture,
DateTimeStyles.None,
out DateTime y
)
);
public static DateTime DateFromTransactionFile(string filename)
=> DateTime.ParseExact(
filename.Substring(filename.LastIndexOf('-') + 1),
"yyyyMMdd",
CultureInfo.InvariantCulture,
DateTimeStyles.None
);
}