Mental Floss: The Month on the Calendar

Last Updated on Sunday, 16 October 2011 05:01
Written by Joseph
Monday, 17 October 2011 08:00

So we’ve seen what the Calendar looks like, and how it’s building it’s Months, but what goes into building a Month?

So building a Month is all about one thing: building it’s weeks. The only other thing I need from a month is the ability to get it’s name (i.e. January, February, etc.). My implementation of this looks something like this:

public class Month
{
  private DateTime FirstDayOfMonth { get; set; }
  
  private IList<Week> Weeks { get; set; }

  public Month(int monthValue)
  {
      FirstDayOfMonth = new DateTime(DateTime.Now.Year, monthValue, 1);
      
      Weeks = new List<Week>();

      BuildMonth();
  }

  private void BuildMonth()
  {
      var startDay = Calendar.GetStartDay();

      var week = new Week();

      var day = FirstDayOfMonth;
      
      do
      {
          if (WeekHasEnded(day, startDay) && WeekIsNotEmpty(week))
          {
              Weeks.Add(week);
              week = new Week();
          }

          week.Add(day);
          
          day = GetNextDay(day);

      } while (day.Month == FirstDayOfMonth.Month);

      Weeks.Add(week);
  }

  private bool WeekIsNotEmpty(Week week)
  {
      return week.GetDays().Count() > 0;
  }

  private bool WeekHasEnded(DateTime day, DayOfWeek startDay)
  {
      return day.DayOfWeek == startDay;
  }

  private DateTime GetNextDay(DateTime day)
  {
      return day.AddDays(1);
  }

  public DayOfWeek GetFirstDayOfMonth()
  {
      return FirstDayOfMonth.DayOfWeek;
  }

  public IList<Week> GetWeeks()
  {
      return Weeks;
  }
  
  public string GetMonthName()
  {
      return string.Format("{0:MMMM}", FirstDayOfMonth);
  }
}
view raw Month.cs This Gist brought to you by GitHub.
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This entry was posted on Monday, October 17th, 2011 at 8:00 am and is filed under Programming. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

1 Comment

  1. Mental Floss: Weeks on the Calendar | Joseph Bulger IV
    October 19, 2011 at 8:02 am

    [...] we’ve gone through how the month is modeled, we need to see how weeks are being [...]