static void Main(string[] args)
{
ConsoleColor original = Console.ForegroundColor;
Console.WriteLine("\nInform a year so the calculator can show us on which day Easter Bunny showed up.");
string year = Console.ReadLine();
int year_ = 0;
if (!int.TryParse(year.ToString(), out year_))
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine("Dude, I was expecting only numbers here. Try again, you can do better.");
Console.ForegroundColor = original;
Console.WriteLine("\nPress any key to exit.");
Console.ReadKey();
return;
}
Calculator calculator = new Calculator();
Result calculate = calculator.Calculate(year_);
if (calculate.IsSuccessful)
{
EasterDateSummary summary = (EasterDateSummary)calculate.Return;
Console.WriteLine("Date: " + summary.EasterDatePortugueseShort);
Console.WriteLine("Date (detailed): " + summary.EasterDatePortugueseLong);
}
else
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(calculate.ErrorMessage);
Console.ForegroundColor = original;
}
Console.WriteLine("\nPress any key to exit.");
Console.ReadKey();
}
public Result Calculate(int year)
{
Result result = new Result();
System.Reflection.MethodBase method = System.Reflection.MethodBase.GetCurrentMethod();
result.Caller = string.Format("{0}.{1}", method.ReflectedType.FullName, method.Name);
result.IsSuccessful = false;
result.AdditionalInfo = new List <string>();
int httpStatusCode = 0;
string httpStatusCodeDescription = string.Empty;
try
{
EasterDateSummary summary = new EasterDateSummary();
summary.EasterDatePortugueseShort = string.Empty;
summary.EasterDatePortugueseLong = string.Empty;
// Begin of validations pipeline
bool isValid = true;
string errorMessage = string.Empty;
if (year < FirstCouncilOfNicaea)
{
isValid = false;
errorMessage = "You kidding... at that time, Easter wasn't even invented yet.";
}
if (year > EndOfWorld)
{
isValid = false;
errorMessage = "Hmmm... the human race may disappear far before that. But congrats. You look quite optimist.";
}
if (!isValid)
{
result.ErrorMessage = errorMessage;
result.Return = summary;
return(result);
}
// End of validations pipeline
int nRest = (year % 19) + 1;
DateTime day = new DateTime();
switch (nRest)
{
case 1: day = new System.DateTime(year, 4, 14, 0, 0, 0, 0); break;
case 2: day = new System.DateTime(year, 4, 3, 0, 0, 0, 0); break;
case 3: day = new System.DateTime(year, 3, 23, 0, 0, 0, 0); break;
case 4: day = new System.DateTime(year, 4, 11, 0, 0, 0, 0); break;
case 5: day = new System.DateTime(year, 3, 31, 0, 0, 0, 0); break;
case 6: day = new System.DateTime(year, 4, 18, 0, 0, 0, 0); break;
case 7: day = new System.DateTime(year, 4, 8, 0, 0, 0, 0); break;
case 8: day = new System.DateTime(year, 3, 28, 0, 0, 0, 0); break;
case 9: day = new System.DateTime(year, 4, 16, 0, 0, 0, 0); break;
case 10: day = new System.DateTime(year, 4, 5, 0, 0, 0, 0); break;
case 11: day = new System.DateTime(year, 3, 25, 0, 0, 0, 0); break;
case 12: day = new System.DateTime(year, 4, 13, 0, 0, 0, 0); break;
case 13: day = new System.DateTime(year, 4, 2, 0, 0, 0, 0); break;
case 14: day = new System.DateTime(year, 3, 22, 0, 0, 0, 0); break;
case 15: day = new System.DateTime(year, 4, 10, 0, 0, 0, 0); break;
case 16: day = new System.DateTime(year, 3, 30, 0, 0, 0, 0); break;
case 17: day = new System.DateTime(year, 4, 17, 0, 0, 0, 0); break;
case 18: day = new System.DateTime(year, 4, 7, 0, 0, 0, 0); break;
case 19: day = new System.DateTime(year, 3, 27, 0, 0, 0, 0); break;
}
for (int n = 1; n <= 13; n++)
{
day = day.AddDays(1);
if (day.DayOfWeek == DayOfWeek.Sunday)
{
string month = day.Month == 3 ? "março" : "abril";
summary.EasterDatePortugueseShort = DateTime.Parse(day.ToString(), new System.Globalization.CultureInfo("pt-BR")).ToString();
summary.EasterDatePortugueseLong = string.Format("Domingo, {0} de {1} de {2}", day.Day.ToString(), month, year.ToString());
break;
}
}
result.IsSuccessful = true;
result.Return = summary;
}
catch (Exception ex)
{
result.ErrorMessage = ex.ToString();
}
finally
{
result.HttpStatusCode = httpStatusCode;
result.HttpStatusCodeDescription = httpStatusCodeDescription;
}
return(result);
}
