private decimal CalculateOverweightCharge(ParcelType parcelType, double weight)
{
switch (parcelType)
{
case ParcelType.Small:
return(weight > smallParcelWeightLimit
? (decimal)(weight - smallParcelWeightLimit) * 2
: 0);
case ParcelType.Medium:
return(weight > mediumParcelWeightLimit
? (decimal)(weight - mediumParcelWeightLimit) * 2
: 0);
case ParcelType.Large:
return(weight > largeParcelWeightLimit
? (decimal)(weight - largeParcelWeightLimit) * 2
: 0);
case ParcelType.XL:
return(weight > xlParcelWeightLimit
? (decimal)(weight - xlParcelWeightLimit) * 2
: 0);
case ParcelType.Heavy:
return(weight > heavyParcelWeightLimit
? (decimal)(weight - heavyParcelWeightLimit) * 1
: 0);
default:
throw new Exception($"Unable to determine overweight charge of Parcel Type: {parcelType}");
}
}
private decimal CalculateCostBasedOnParcelType(ParcelType parcelType)
{
switch (parcelType)
{
case ParcelType.Small:
return(3);
case ParcelType.Medium:
return(8);
case ParcelType.Large:
return(15);
case ParcelType.XL:
return(25);
case ParcelType.Heavy:
return(50);
default:
throw new Exception($"Unable to determine cost for Parcel Type: {parcelType}");
}
}
/// <summary>
/// A parcel
/// </summary>
/// <param name="dimensions">Total size of all dimensions of the parcel in cm</param>
/// <param name="weight">Weight of the parcel in kg</param>
public Parcel(double dimensions, double weight)
{
this.parcelType = this.CalculateParcelType(dimensions, weight);
this.weight = weight;
}
public ParcelCost(ParcelType parcelType, double weight)
{
this.cost = this.CalculateCostBasedOnParcelType(parcelType);
this.overweightCharge = this.CalculateOverweightCharge(parcelType, weight);
}
public Parcel(double widthCm, double heightCm, double weightKg = 0)
{
Dimensions = new ParcelDimensions(widthCm, heightCm);
Type = new ParcelType(Dimensions, weightKg);
WeightKg = weightKg;
}
