public static double GetMiniConversionConstant(this YarnType yarnType)
{
YarnTypePropertiesAttribute yarnTypePropertiesAttribute = GetYarnTypeProperties(yarnType);
double conversionConstant = yarnTypePropertiesAttribute.MiniConversionConstant;
return(conversionConstant);
}
public static YarnType GetCorrespondingMiniType(this YarnType yarnType)
{
YarnTypePropertiesAttribute yarnTypePropertiesAttribute = GetYarnTypeProperties(yarnType);
YarnType miniType = yarnTypePropertiesAttribute.CorrespondingMiniType;
return(miniType);
}
public void CreateYarnTypeCodeFromTextShouldReturnYarnTypeCodeAsBFLSock()
{
String typeCode = "BSK";
YarnType yarnType = YarnFactory.CreateYarnTypeFromText(typeCode);
Assert.AreEqual(YarnType.BFLSock, yarnType);
}
public void ModifyValuesForMiniSkeinsShouldNotModifyValuesWhenDescriptionDoesNotContainANumber()
{
string yarnDescription = "Classy S.W. Merino Worsted";
double quantity = 2;
YarnType yarnType = YarnType.Classy;
(YarnType updatedYarnType, double updatedQuantity) = YarnFactory.ModifyValuesForMiniSkeins(yarnDescription, quantity, yarnType);
Assert.AreEqual(YarnType.Classy, updatedYarnType);
Assert.AreEqual(2, updatedQuantity);
}
public void ModifyValuesForMiniSkeinsShouldModifyValuesWhenDescriptionContainsANumber()
{
string yarnDescription = "Classy 5- 50yd.minis @ $2.90 per skein";
double quantity = 2;
YarnType yarnType = YarnType.Classy;
(YarnType updatedYarnType, double updatedQuantity) = YarnFactory.ModifyValuesForMiniSkeins(yarnDescription, quantity, yarnType);
Assert.AreEqual(YarnType.MiniClassy, updatedYarnType);
Assert.AreEqual(10, updatedQuantity);
}
public static (YarnType, double) ModifyValuesForMiniSkeins(string yarnDescription, double quantity,
YarnType yarnType)
{
if (Yarn.DetermineIfMiniSkein(yarnDescription))
{
double conversionConstant = yarnType.GetMiniConversionConstant();
quantity *= conversionConstant;
YarnType miniType = yarnType.GetCorrespondingMiniType();
return(miniType, quantity);
}
return(yarnType, quantity);
}
public static String GetTextRepresentation(this YarnType yarnType)
{
YarnTypePropertiesAttribute yarnTypePropertiesAttribute = GetYarnTypeProperties(yarnType);
String textRepresentation = yarnTypePropertiesAttribute.TextRepresentation;
if (textRepresentation != String.Empty)
{
return(textRepresentation);
}
else
{
return(yarnType.ToString());
}
}
public static Yarn CreateYarnFromText(CsvReader reader)
{
double quantity = reader.GetField <double>(1);
YarnType yarnType = YarnFactory.CreateYarnTypeFromText(reader.GetField <String>(2));
String yarnTypeDescription = reader.GetField <String>(3);
(yarnType, quantity) = YarnFactory.ModifyValuesForMiniSkeins(yarnTypeDescription, quantity, yarnType);
Yarn yarn = new Yarn(quantity, yarnType, yarnTypeDescription);
if (reader.TryGetField <String>(4, out String colorName))
{
yarn.Color = colorName;
}
return(yarn);
}
public static Yarn CreateYarnFromText(string inputText)
{
inputText = inputText.TrimStart(',');
String[] inputs = inputText.Split(',');
double quantity = double.Parse(inputs[0]);
YarnType yarnType = YarnFactory.CreateYarnTypeFromText(inputs[1]);
String yarnTypeDescription = inputs[2];
(yarnType, quantity) = YarnFactory.ModifyValuesForMiniSkeins(yarnTypeDescription, quantity, yarnType);
Yarn yarn = new Yarn(quantity, yarnType, yarnTypeDescription);
if (inputs.Length > 3)
{
yarn.Color = inputs[3];
}
return(yarn);
}
private static YarnTypePropertiesAttribute GetYarnTypeProperties(YarnType yarnType)
{
Type type = yarnType.GetType();
string name = Enum.GetName(type, yarnType);
if (name != null)
{
FieldInfo field = type.GetField(name);
if (field != null)
{
YarnTypePropertiesAttribute yarnTypeProperties =
Attribute.GetCustomAttribute(field, typeof(YarnTypePropertiesAttribute)) as YarnTypePropertiesAttribute;
if (yarnTypeProperties != null)
{
return(yarnTypeProperties);
}
}
}
throw new ArgumentException();
}
public Yarn(double numberOfSkeins, YarnType yarnType, String yarnTypeDescription)
{
NumberOfSkeins = numberOfSkeins;
YarnType = yarnType;
YarnTypeDescription = yarnTypeDescription;
}
public YarnTypePropertiesAttribute(double miniConversionConstant, YarnType miniType, string textRepresentation = "")
{
MiniConversionConstant = miniConversionConstant;
CorrespondingMiniType = miniType;
TextRepresentation = textRepresentation;
}
