static void Main(string[] args)
{
Console.WriteLine("Welcome to Switchboard!");
Console.WriteLine($"Please note, input length is unlimited, while phone number should include less than '{Consts.MAX_VALID_LENGTH}' digits");
Console.WriteLine("====================================================================================");
do
{
Console.WriteLine("Enter the first phone number to compare");
var phoneA = Console.ReadLine();
Console.WriteLine("enter the second number");
var phoneB = Console.ReadLine();
Console.WriteLine("Choose comparison method: l - using Linq, r - using Regex, s - using Serial string comparison");
Console.WriteLine("In case other char than('l', 'r', 's') is entered comparison method will be default (Linq)");
var compareMethod = Console.ReadLine();
IEqualityComparer <string> comparer;
switch (compareMethod)
{
case "l":
comparer = new LinqCompare();
break;
case "r":
comparer = new RegexCompare();
break;
case "s":
comparer = new SerialCompare();
break;
default:
comparer = new LinqCompare();
break;
}
Stopwatch watch = new Stopwatch();
watch.Start();
try
{
var resultString = PhoneNumberComparer.AreEqual(phoneA, phoneB, comparer) ? "equal" : "not equal";
Console.WriteLine($"Numbers are {resultString}, operation took: '{watch.Elapsed}'");
}
// Handle ArgumentOutOfRange exception, all other will crash the application currently by design
catch (ArgumentOutOfRangeException)
{
Console.WriteLine($"Invalid numbers where entered, please enter numbers with less than '{Consts.MAX_VALID_LENGTH}' digits");
}
}while (true);
}
public void Init()
{
_linqComparer = new LinqCompare();
_regexComparer = new RegexCompare();
_serialComparer = new SerialCompare();
}