public double ShippingFee(string shipper, double length, double width, double height, double weight)
{
double finalFee;
var goodsFeeInfo = new GoodsFeeInfo
{
Length = length,
Width = width,
Height = height,
Weight = weight,
};
if (shipper.Equals("black cat"))
{
finalFee = BlackCatFee(goodsFeeInfo);
}
else if (shipper.Equals("hsinchu"))
{
finalFee = Hsinchu(goodsFeeInfo);
}
else if (shipper.Equals("post office"))
{
finalFee = PostOffice(goodsFeeInfo);
}
else
{
throw new ArgumentException("shipper not exist");
}
return(finalFee);
}
private double PostOffice(GoodsFeeInfo goodsFeeInfo)
{
double feeByWeight = 80 + goodsFeeInfo.Weight * 10;
double size = goodsFeeInfo.Length * goodsFeeInfo.Width * goodsFeeInfo.Height;
double feeBySize = size * 0.00002 * 1100;
return(feeByWeight < feeBySize ? feeByWeight : feeBySize);
}
private double BlackCatFee(GoodsFeeInfo goodsFeeInfo)
{
if (goodsFeeInfo.Weight > 20)
{
return(500);
}
else
{
return(100 + goodsFeeInfo.Weight * 10);
}
}
private double Hsinchu(GoodsFeeInfo goodsFeeInfo)
{
double size = goodsFeeInfo.Length * goodsFeeInfo.Width * goodsFeeInfo.Height;
if (goodsFeeInfo.Length > 100 || goodsFeeInfo.Width > 100 || goodsFeeInfo.Height > 100)
{
return(size * 0.00002 * 1100 + 500);
}
else
{
return(size * 0.00002 * 1200);
}
}
