public int CalculateStayInNumberOfDays_ShouldAdd1ExtraDay_ForEachWholeOrPartDay(string startDateValue, string endDateValue)
{
var startDateTime = DateTime.Parse(startDateValue);
var endDateTime = DateTime.Parse(endDateValue);
return(ChargeableTimeCalculator.CalculateStayInNumberOfDays(startDateTime, endDateTime));
}
public string CalculatePrice(DateTime startDateTime, DateTime endDateTime)
{
// Seperated out method below into static utils method below
// since it maybe in future that we need to reuse logic for seperate strategy.
// Caution should be applied when using static class, however
// I went for it in this small app since the util class is performing a calculation
// and holds no state. The calculation logic is unlikely to change.
var days = ChargeableTimeCalculator.CalculateStayInNumberOfDays(startDateTime, endDateTime);
var timespan = TimeSpan.FromDays(days);
var cost = (Math.Ceiling(timespan.TotalDays)) * AppConstants.LongStayCharge;
return(cost.ToString("C", CultureInfo.CurrentCulture));
}