/// <summary>
/// The OptimizeMeasurements method modifies a collection of common measurements to make it easier for kitchen use
/// </summary>
/// <param name="measurements">ICollection of Measurements</param>
private static void OptimizeMeasurements(ICollection <Measurement> measurements)
{
int size = measurements.Count;
if (size > 1)
{
//can cast as USCookingVolumeMeasurement because know it is--was created in this class. List is of type Measurement to be usable across multiple types of measurements
USCookingVolumeMeasurement secondToLast = (USCookingVolumeMeasurement)measurements.ElementAt(size - 2);
/* check if second-to-last element is tablespoon
* (if it is, the last one is teaspoons because it is the only unit less than tablespoons) */
if (secondToLast.UnitSize == Unit.TABLESPOON)
{
//simplify before checking denominator, because otherwise a denominator of 2 does not indicate any halves, as it could be 4/2
secondToLast.Amount.Simplify();
if (secondToLast.Amount.Denominator == 2)
{
//can cast as USCookingVolumeMeasurement because know it is--was created in this class. List is of type Measurement to be usable across multiple types of measurements
USCookingVolumeMeasurement teaspoons = (USCookingVolumeMeasurement)measurements.ElementAt(size - 1);
//if only 1/2 a tablespoon and has teaspoons, better to take out the tablespoons and turn have 1 1/2 more teaspoons (because more annoying to use more spoons)
if (secondToLast.Amount.Equals(new Fraction(1, 2))) //if tablespoons is 1/2 (don't have to use EqualsValue because it has been simplified)
{
teaspoons.Amount += new Fraction(RecipeConstants.TSP_PER_TBSP, 2);
teaspoons.Amount.Simplify();
measurements.Remove(secondToLast);
}
/*
* If tablespoons is not 1/2, then is greater than 1/2 (only allowed in 1/2 increments),
* and because it has denominator of 2 when simplifed, is X 1/2 tablespoons.
* If teaspoons is also in half increments, better to use bigger size spoons
* (less times filling them--better to add one teaspoon than do 3 1/2 tablespoons
* in 1/2 tablespoon increments or use both 1/2 and 1 tablespoon spoons),
* so becomes numberOfTablespoons - 1/2 (=whole number) and numberOfTeaspoons + 1/2 (= 2)
* if teaspoons denominator is 2, teaspoons is 1/2, because is simplified (so not 2/2),
* and any 1/2 increment greater than 1/2 would have yielded 1/2 tablespoons
* (because 1 1/2 teaspoons = 1 tablespoon)
*/
else if (teaspoons.Amount.Denominator == 2)
{
secondToLast.Amount -= new Fraction(1, 2);
teaspoons.Amount += new Fraction(3, 2);
}
}
}
}
}
/// <summary>
/// Overloaded GetMeasurementReplacement method replaces the measurement
/// in the given text, given a Unit
/// </summary>
/// <param name="amount">String containing measurement amount</param>
/// <param name="unit">Unit of measurement</param>
/// <returns></returns>
private string GetMeasurementReplacement(String amount, Unit unit)
{
Measurement measurement;
//gets the measurement as a fraction
RecipeFraction fraction = GetFraction(amount);
//perform the actual recipe conversion
fraction *= multiplier;
if (unit == Unit.OTHER)
{
measurement = new OtherMeasurement(fraction);
}
else
{
measurement = new USCookingVolumeMeasurement(fraction, unit);
}
//get user-friendly version of converted measurement
ICollection <Measurement> measurements = measurement.UserFriendlyMeasurements();
String replacement = String.Join(" + ", measurements.Select(i => i.ToHTMLFormattedString()));
//if there was a plus after the measurement amount, indicate that in the replacement text
if (Regex.Match(amount, PLUS_PATTERN).Success)
{
//if more than one measurement, need to indicate that the 'plus' at the end refers to the combined group of measurements
if (measurements.Count > 1)
{
replacement = "[" + replacement + "]<b>+</b>";
}
else
{
replacement += "+"; //does not need to be bold if only one measurement
}
}
return(replacement);
}
