public virtual async Task <DeliveryChargeDto> CalculateAsync(int addressId, int deliveryScheduleId, CartItemDto[] items)
{
var meanDistance = await DeliveryChargeRepository.GetMeanDistanceAsync(addressId);
var distanceChargeE = await AsyncExecuter
.LastOrDefaultAsync(from dcR in DistanceChargeRepository
orderby dcR.From ascending
where dcR.From <= meanDistance.MeanDistance
select dcR);
_ = distanceChargeE ?? throw new BusinessException();
var subtotal = 0.0;
foreach (var ci in items)
{
var itemE = await ItemRepository.SingleOrDefaultAsync(e => e.Id == ci.ItemID)
?? throw new BusinessException();
subtotal += itemE.ItemPrice * ci.Qty;
}
var subtotalPerE = await AsyncExecuter
.LastOrDefaultAsync(from subPR in SubtotalPercentageRepository
orderby subPR.From ascending
where subPR.From <= subtotal
select subPR);
var itemIdsArr = items.Select(e => e.ItemID).ToArray();
var dsArr = await DeliveryScheduleRepository.GetCompatibleSchedules((new Guid()), addressId, itemIdsArr);
var dsE = dsArr.SingleOrDefault(e => e.Id == deliveryScheduleId) ?? throw new BusinessException();
float dsCost = (float)(subtotal * (dsE.CostIncreasePercentage / 100));
var subPer = (subtotalPerE == null)? 0 : (subtotal * ((float)subtotalPerE.Percentage / 100));
return(new DeliveryChargeDto
{
DistanceChargeID = distanceChargeE.Id,
DeliveryScheduleID = dsE.Id,
SubtotalPercentageID = (subtotalPerE == null)? 0 : subtotalPerE.Id,
DistanceCharge = distanceChargeE.Charge,
IncreasedCost = dsCost,
SubtotalPercentage = (float)subPer,
Subtotal = (float)subtotal,
Nettotal = (float)(subtotal + distanceChargeE.Charge + dsCost + subPer)
});
}
