/// <summary>
/// Calculates the shipping price for a sales order
/// ### Complete this method
/// </summary>
/// Assumptions
/// Price Based Shipping Rate Calculations: Total Price of all the products in the order is considered to calculate the shipping rate for Price Based Method
/// Weight Based Shipping Rate Calcuations: Total Weight of all the products in the order is considered to calculate the shipping rate for Weight Based Method
/// API Based Shipping Rate Calcuations: There is little bit confusion on this part of calculations. Here my understanding suggested that if product weighs between 10 to 30 I have added 5m to Weight based calculation
/// I thought to get maximum from Price Based and Weight based and add the rate adjustment price to it. Similar approach is used for Rate Adjustment Percent.
public decimal Calculate(SalesOrder salesOrder)
{
//throw new NotImplementedException();
decimal shippingCost = 0.00m;
// decimal ShippingAPICost = 0.00m;
if (salesOrder != null && salesOrder.Lines.Count() > 0)
{
decimal TotalPrice = 0.00m;
decimal TotalWeight = 0.00m;
foreach (SalesOrderLine orderLine in salesOrder.Lines)
{
TotalPrice += (orderLine.Price * orderLine.Quantity);
if (orderLine.Product != null)
{
TotalWeight += (orderLine.Product.Weight * orderLine.Quantity);
}
}
ShippingCalculator shippingCalculator = new ShippingCalculator();
var ShippingPriceCost = CalculateShippingRate(TotalPrice, shippingCalculator._priceRates);
var ShippingWeightCost = CalculateShippingRate(TotalWeight, shippingCalculator._weightRates);
//var ApiCalculatedWeight = ShippingApiClient.get
var shippingapiclient = new ShippingApiClient();
var apiweightCost = shippingapiclient.GetRate(decimal.Parse(salesOrder.DeliveryPostalCode), decimal.Parse(salesOrder.DeliveryPostalCode), TotalWeight);
var ShippingAPICost = CalculateShippingRate(TotalWeight, shippingCalculator._apiRates, apiweightCost);
shippingCost = GetMax(ShippingPriceCost, ShippingWeightCost, ShippingAPICost);
}
return(shippingCost);
}
public ShippingCalculator()
{
_priceRates = new List <ShippingPriceRate>
{
new ShippingPriceRate {
PriceMin = 0, PriceMax = 50, Rate = 5.50m
},
new ShippingPriceRate {
PriceMin = 0, PriceMax = 100, Rate = 0.00m
},
new ShippingPriceRate {
PriceMin = 100, PriceMax = 500, Rate = 10.00m
},
new ShippingPriceRate {
PriceMin = 1000, PriceMax = null, Rate = 15.00m
},
};
_weightRates = new List <ShippingWeightRate>
{
new ShippingWeightRate {
WeighMin = 1, WeighMax = 5, Rate = 10.00m
},
new ShippingWeightRate {
WeighMin = 5.01m, WeighMax = 10.00m, Rate = 7.00m
},
new ShippingWeightRate {
WeighMin = 10.00m, WeighMax = null, Rate = 20.00m
}
};
_apiRates = new List <ShippingAPIRate>
{
new ShippingAPIRate {
WeighMin = 10, WeighMax = 30, RateAdjustmentPrice = 5m
},
new ShippingAPIRate {
WeighMin = 30, WeighMax = 35, RateAdjustmentPercent = 7.5m
},
new ShippingAPIRate {
WeighMin = 35, WeighMax = null
}
};
_client = new ShippingApiClient();
}