static void Main()
{
// Create an instance of the GSM class
Thread.CurrentThread.CurrentCulture = CultureInfo.GetCultureInfo("en-GB");
Display display = new Display(2.5F, "256K");
Battery battery = new Battery(950, 35, BatteryType.LiIon);
GSM gsmTest = new GSM("Samsung Ace", "Samsung Group", 545.00M, "Ivan Ivanov", battery, display);
//Add few calls
DateTime date = DateTime.Now;
gsmTest.AddCallInHistory(date, "0889909988", 65);
gsmTest.AddCallInHistory(date.AddHours(1), "0889969988", 25);
gsmTest.AddCallInHistory(date.AddHours(2), "0883909988", 3600);
gsmTest.AddCallInHistory(date.AddHours(6.5), "0889969988", 1000);
//Display the information about the calls.
Console.WriteLine("Print the call hisory of phone {0}", gsmTest.ModelOfGSM);
Console.WriteLine(gsmTest.PrintCallHistory());
//Assuming that the price per minute is 0.37 calculate and print the total price of the calls in the history
//use readonly modificator about pricePerminute
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Total price of calls is: {0}", gsmTest.CalcucateTotalPrice(0.37M));
Console.ForegroundColor = ConsoleColor.Gray;
//Remove the longest call from the history and calculate the total price again.
gsmTest.RemoveCallByLongestDuration();
Console.WriteLine(gsmTest.PrintCallHistory());
//Finally clear the call history and print it.
gsmTest.ClearCallHistory();
Console.WriteLine(gsmTest.PrintCallHistory());
}
