private static async Task<bool> LoadPacks()
{
var pack = await ReadUnitsPack("DefaultUnits.json");
// parse all the units and add to the units collection
foreach (var unit in pack.Units)
{
BaseUnit newUnit = new BaseUnit(unit.Name, unit.Description, unit.Category, unit.BaseUnitValue);
_units.Add(newUnit);
}
return true;
}
public static IUnit RegisterUnit(string name, string description, UnitCategory category, double baseUnitValue)
{
// check for null strings
if (String.IsNullOrWhiteSpace(name))
throw new ArgumentException($"Name connot be null or empty");
// check if the unit exists for the category
var unit = UnitFromName(name, category);
if (unit != null)
throw new ArgumentException($"Unit '{name}' for category '{category}' already registered");
var newUnit = new BaseUnit(name, description, category, baseUnitValue);
_units.Add(newUnit);
return newUnit;
}
