/// <summary>
/// Convert unit of measure for item availabilities.
/// </summary>
/// <param name="context">The request context.</param>
/// <param name="itemAvailableQuantities">The item availabilities.</param>
/// <param name="itemUnits">The desired item unit of measures.</param>
/// <returns>The converted item available quantities.</returns>
internal static IEnumerable <ItemAvailableQuantity> ConvertUnitOfMeasure(RequestContext context, IEnumerable <ItemAvailableQuantity> itemAvailableQuantities, IEnumerable <ItemUnit> itemUnits)
{
List <ItemAvailableQuantity> convertedItemAvailableQuantities = new List <ItemAvailableQuantity>();
IEnumerable <ItemUnit> distinctItemUnits = itemUnits.Distinct();
IEnumerable <ItemUnitQuantity> itemUnitQuantities = itemAvailableQuantities.Select(itemAvailableQuantity => itemAvailableQuantity.GetItemUnitQuantity());
Dictionary <ItemUnitConversion, UnitOfMeasureConversion> conversions = GetUnitOfMeasureConversions(context, itemUnitQuantities, distinctItemUnits);
ILookup <ItemVariantInventoryDimension, ItemUnit> itemUnitLookupByItem = distinctItemUnits.ToLookup(itemUnit => itemUnit.GetItem());
foreach (ItemAvailableQuantity itemAvailableQuantity in itemAvailableQuantities)
{
bool hasInventoryUnit = false;
foreach (ItemUnit itemUnit in itemUnitLookupByItem[itemAvailableQuantity.GetItem()])
{
ItemUnitConversion itemUnitConversion = ChannelAvailabilityHelper.GetItemUnitConversion(itemAvailableQuantity.GetItemUnitQuantity(), itemUnit);
UnitOfMeasureConversion unitOfMeasureConversion;
if (!conversions.TryGetValue(itemUnitConversion, out unitOfMeasureConversion))
{
if (!StringDataHelper.Equals(itemAvailableQuantity.UnitOfMeasure, itemUnit.UnitOfMeasure))
{
context.Notify(new UnableToConvertUnitOfMeasureNotification(itemUnitConversion));
}
if (!hasInventoryUnit)
{
convertedItemAvailableQuantities.Add(itemAvailableQuantity);
hasInventoryUnit = true;
}
}
else
{
ItemAvailableQuantity convertedItemAvailableQuantity = new ItemAvailableQuantity();
convertedItemAvailableQuantity.CopyPropertiesFrom(itemAvailableQuantity);
convertedItemAvailableQuantity.AvailableQuantity = unitOfMeasureConversion.Convert(itemAvailableQuantity.AvailableQuantity);
convertedItemAvailableQuantity.UnitOfMeasure = itemUnitConversion.ToUnitOfMeasure;
convertedItemAvailableQuantities.Add(convertedItemAvailableQuantity);
}
}
}
return(convertedItemAvailableQuantities.AsEnumerable());
}
private static Dictionary <string, decimal> GetSalesLineInventoryQuantities(RequestContext context, IEnumerable <SalesLine> salesLines, Dictionary <ItemUnitConversion, UnitOfMeasureConversion> unitOfMeasureConversions)
{
// Convert quantities from sales to inventory unit of measure and calculate total converted quantities.
Dictionary <string, decimal> salesLineInventoryQuantities = new Dictionary <string, decimal>();
foreach (SalesLine salesLine in salesLines)
{
decimal salesLineInventoryQuantity = 0;
UnitOfMeasureConversion unitOfMeasureConversion;
ItemUnitConversion itemUnitConversion = salesLine.GetItemUnitConversion();
if (string.IsNullOrWhiteSpace(salesLine.SalesOrderUnitOfMeasure))
{
var notification = new EmptySalesUnitOfMeasureNotification(salesLine.LineId);
context.Notify(notification);
}
else if (string.IsNullOrWhiteSpace(salesLine.InventOrderUnitOfMeasure))
{
var notification = new EmptyInventoryUnitOfMeasureNotification(salesLine.ItemId);
context.Notify(notification);
}
else if (string.Equals(salesLine.SalesOrderUnitOfMeasure, salesLine.InventOrderUnitOfMeasure, StringComparison.OrdinalIgnoreCase))
{
salesLineInventoryQuantity = salesLine.Quantity;
}
else if (unitOfMeasureConversions.TryGetValue(itemUnitConversion, out unitOfMeasureConversion))
{
salesLineInventoryQuantity = unitOfMeasureConversion.Convert(salesLine.Quantity);
}
else
{
var notification = new UnableToConvertUnitOfMeasureNotification(itemUnitConversion);
context.Notify(notification);
}
salesLineInventoryQuantities[salesLine.LineId] = salesLineInventoryQuantity;
}
return(salesLineInventoryQuantities);
}
/// <summary>
/// Convert unit of measure for item reservations.
/// </summary>
/// <param name="context">The request context.</param>
/// <param name="itemReservations">The item reservations.</param>
/// <param name="itemUnitConversions">The item unit conversions.</param>
/// <exception cref="DataValidationException">Thrown if there is no conversion rules defined for any of item reservations.</exception>
internal static void ConvertUnitOfMeasure(RequestContext context, IEnumerable <ItemReservation> itemReservations, IEnumerable <ItemUnitConversion> itemUnitConversions)
{
Collection <DataValidationFailure> validationFailures = new Collection <DataValidationFailure>();
Dictionary <ItemUnitConversion, UnitOfMeasureConversion> conversions = GetUnitOfMeasureConversions(context, itemUnitConversions);
IEnumerator <ItemReservation> itemReservationEnumerator = itemReservations.GetEnumerator();
IEnumerator <ItemUnitConversion> itemUnitConversionEnumerator = itemUnitConversions.GetEnumerator();
while (itemReservationEnumerator.MoveNext() && itemUnitConversionEnumerator.MoveNext())
{
ItemUnitConversion itemUnitConversion = itemUnitConversionEnumerator.Current;
if (!itemUnitConversion.IsNop)
{
UnitOfMeasureConversion unitOfMeasureConversion;
if (conversions.TryGetValue(itemUnitConversion, out unitOfMeasureConversion))
{
ItemReservation itemReservation = itemReservationEnumerator.Current;
itemReservation.Quantity = unitOfMeasureConversion.Convert(itemReservation.Quantity);
}
else
{
DataValidationFailure validationFailure = new DataValidationFailure(DataValidationErrors.Microsoft_Dynamics_Commerce_Runtime_UnitOfMeasureConversionNotFound);
validationFailure.ErrorContext = string.Format(CultureInfo.InvariantCulture, "No conversion rules defined for ItemUnitConversion:{0}", itemUnitConversion);
validationFailures.Add(validationFailure);
}
}
}
if (validationFailures.Count > 0)
{
throw new DataValidationException(
DataValidationErrors.Microsoft_Dynamics_Commerce_Runtime_AggregateValidationError,
validationFailures,
string.Format("There are {0} item reservations whose unit of measures cannot be converted.", validationFailures.Count));
}
}
/// <summary>
/// Calculate the tax bases calculationBase and limitBase (which is zero for India).
/// </summary>
/// <param name="codes">The tax codes.</param>
/// <param name="taxInStoreCurrency">If set to <c>true</c> [tax in store currency].</param>
/// <param name="calculateBasePrice">If set to <c>true</c> [Calculate the base price].</param>
/// <returns>The calculation base as Item1 and The limit base as Item2 in Tuple.</returns>
protected override Tuple <decimal, decimal> GetBases(ReadOnlyCollection <TaxCode> codes, bool taxInStoreCurrency, bool calculateBasePrice)
{
const decimal LimitBase = decimal.Zero;
decimal calculationBase;
// For amount by unit calculation base is just the quantity.
if (this.TaxBase == TaxBase.AmountByUnit)
{
calculationBase = this.TaxableEntity.Quantity;
// If the tax is calculated in a different UOM, then convert if possible
// this is only applicable for lineItem taxes.
SalesLine salesLine = this.TaxableEntity as SalesLine;
if (salesLine != null && !string.Equals(this.Unit, this.TaxableEntity.SalesOrderUnitOfMeasure, StringComparison.OrdinalIgnoreCase))
{
ItemUnitConversion conversion = new ItemUnitConversion
{
FromUnitOfMeasure = this.TaxableEntity.SalesOrderUnitOfMeasure,
ToUnitOfMeasure = this.Unit,
ItemId = this.TaxableEntity.ItemId
};
var conversions = new List <ItemUnitConversion>();
conversions.Add(conversion);
var getUomConvertionDataRequest = new GetUnitOfMeasureConversionDataRequest(conversions, QueryResultSettings.SingleRecord);
UnitOfMeasureConversion converter = this.RequestContext.Runtime
.Execute <GetUnitOfMeasureConversionDataResponse>(getUomConvertionDataRequest, this.RequestContext).UnitConversions.SingleOrDefault();
calculationBase *= converter.GetFactorForQuantity(this.TaxableEntity.Quantity);
}
return(new Tuple <decimal, decimal>(calculationBase, LimitBase));
}
// Determine the starting calculation base (includes the line price or not)
switch (this.Formula.TaxableBasis)
{
case TaxableBasisIndia.LineAmount:
calculationBase = this.TaxableEntity.NetAmountWithAllInclusiveTaxPerUnit;
break;
case TaxableBasisIndia.MaxRetailPrice:
calculationBase = this.GetItemMaxRetailPrice();
break;
default:
calculationBase = decimal.Zero;
break;
}
if (this.TaxIncludedInPrice)
{
calculationBase = GetBasePriceForTaxIncluded(calculationBase, codes, this.Formula, this.RequestContext);
}
calculationBase *= Math.Abs(this.TaxableEntity.Quantity);
// Calculation expression is of the form: +[BCD]+[CVD]+[E-CESS_CVD]+[PE-C_CVD]+[SHE-C_CVD]
// where the brackets are replaced with the delimiter char(164)
// and BCD, CVD ... are tax codes.
// The operator may be + - / *.
string[] tokens = this.Formula.ParseExpression();
for (int index = 1; index < tokens.Length; index += 2)
{
TaxLine taxLine = (from line in this.TaxableEntity.TaxLines
where line.TaxCode == tokens[index]
select line).FirstOrDefault();
if (taxLine != null)
{
this.IsTaxOnTax = true;
if (!this.taxCodesInFormula.Contains(taxLine.TaxCode))
{
this.taxCodesInFormula.Add(taxLine.TaxCode);
}
}
decimal amount = taxLine == null ? decimal.Zero : taxLine.Amount * Math.Sign(this.TaxableEntity.Quantity);
int tokenNumber = index - 1;
switch (tokens[tokenNumber])
{
case "+":
calculationBase += amount;
break;
case "-":
calculationBase -= amount;
break;
case "*":
calculationBase *= amount;
break;
case "/":
calculationBase = amount == decimal.Zero ? calculationBase : calculationBase /= amount;
break;
default:
RetailLogger.Log.CrtServicesTaxCodeIndiaTaxServiceInvalidOperatorFoundInBaseCalculation(tokens[tokenNumber]);
break;
}
}
// Knock any abatement off of the taxable basis
calculationBase *= (100 - this.AbatementPercent) / 100;
return(new Tuple <decimal, decimal>(calculationBase, LimitBase));
}
/// <summary>
/// Gets the bases for tax calculations.
/// </summary>
/// <param name="codes">The collection of tax codes.</param>
/// <param name="taxInStoreCurrency">If set to <c>true</c>, tax amount is in the store's currency.</param>
/// <param name="calculateBasePrice">If set to <c>true</c>, calculate the base price.</param>
/// <returns>The calculation base and The limit base in <see cref="Tuple">Tuple</see>.</returns>
protected virtual Tuple <decimal, decimal> GetBases(
ReadOnlyCollection <TaxCode> codes,
bool taxInStoreCurrency,
bool calculateBasePrice)
{
decimal calculationBase;
decimal limitBase;
decimal basePrice = decimal.Zero;
if (calculateBasePrice)
{
basePrice = this.TaxIncludedInPrice ?
TaxCodeProvider.GetBasePriceForTaxIncluded(this.TaxableEntity, codes, this.TaxContext) :
this.TaxableEntity.NetAmountPerUnit + GetApplicableDutyTaxes(this.TaxableEntity, codes);
}
// 1. Get initial value for the Calculation Base
switch (this.TaxBase)
{
case TaxBase.PercentPerTax:
// Base is the amount of the other tax
switch (this.TaxLimitBase)
{
case TaxLimitBase.InvoiceWithoutVat:
case TaxLimitBase.InvoiceWithVat:
calculationBase = Math.Abs(this.CalculateTaxOnTax(this.Transaction));
break;
case TaxLimitBase.UnitWithoutVat:
case TaxLimitBase.UnitWithVat:
// if this tax's Limit is per-unit, then we need to convert the existing tax amounts from per-line to per-unit
decimal quantity = (this.TaxableEntity.Quantity == decimal.Zero) ? decimal.One : this.TaxableEntity.Quantity;
calculationBase = Math.Abs(this.CalculateTaxOnTax()) / Math.Abs(quantity);
break;
default:
calculationBase = Math.Abs(this.CalculateTaxOnTax());
break;
}
break;
case TaxBase.PercentPerGross:
// Base is the price + other taxes
calculationBase = basePrice;
// If the Limit base is NOT per-unit, then we need to factor in the line quanity
if (TaxLimitBase != TaxLimitBase.UnitWithoutVat && TaxLimitBase != TaxLimitBase.UnitWithVat)
{
calculationBase *= Math.Abs(this.TaxableEntity.Quantity);
}
if (!string.IsNullOrEmpty(this.TaxOnTax))
{
// Base is the Price + the amount of a single other tax
calculationBase += Math.Abs(this.CalculateTaxOnTax());
}
else
{
// Base is the Price + all other taxes
calculationBase += Math.Abs(TaxCode.SumAllTaxAmounts(this.TaxableEntity));
}
break;
case TaxBase.AmountByUnit:
calculationBase = this.AmountPerUnitCalculationBase;
break;
case TaxBase.PercentPerNet:
case TaxBase.PercentGrossOnNet:
default:
// Base is the Price
calculationBase = basePrice;
// If the Limit base is NOT per-unit, then we need to factor in the line quanity
if (TaxLimitBase != TaxLimitBase.UnitWithoutVat && TaxLimitBase != TaxLimitBase.UnitWithVat)
{
calculationBase *= Math.Abs(this.TaxableEntity.Quantity);
}
break;
}
// 3. Set Limit Base
if (this.TaxBase == TaxBase.AmountByUnit)
{
// Base for limits/intervals is base-quantity * price
limitBase = calculationBase * basePrice;
// Convert limit base to Tax currency, if different
if (!taxInStoreCurrency)
{
limitBase = this.TaxContext.TaxCurrencyOperations.ConvertCurrency(this.TaxContext.ChannelCurrency, this.Currency, limitBase);
}
// If the tax is calculated in a different UOM, then convert if possible
// this is only applicable for lineItem taxes.
SalesLine salesLine = this.TaxableEntity as SalesLine;
if (salesLine != null && !string.Equals(this.Unit, this.TaxableEntity.SalesOrderUnitOfMeasure, StringComparison.OrdinalIgnoreCase))
{
ItemUnitConversion conversion = new ItemUnitConversion
{
FromUnitOfMeasure = this.TaxableEntity.SalesOrderUnitOfMeasure,
ToUnitOfMeasure = this.Unit,
ItemId = this.TaxableEntity.ItemId
};
var conversions = new List <ItemUnitConversion>();
conversions.Add(conversion);
var getUomConvertionDataRequest = new GetUnitOfMeasureConversionDataRequest(conversions, QueryResultSettings.SingleRecord);
UnitOfMeasureConversion converter = this.RequestContext.Runtime
.Execute <GetUnitOfMeasureConversionDataResponse>(getUomConvertionDataRequest, this.RequestContext).UnitConversions.SingleOrDefault();
calculationBase *= converter.GetFactorForQuantity(this.TaxableEntity.Quantity);
}
}
else
{
// Convert base to Tax currency, if different
if (!taxInStoreCurrency)
{
calculationBase = this.TaxContext.TaxCurrencyOperations.ConvertCurrency(this.TaxContext.ChannelCurrency, this.Currency, calculationBase);
}
// Base for limits/intervals is same for Calculations
limitBase = calculationBase;
}
return(new Tuple <decimal, decimal>(calculationBase, limitBase));
}
