/// <summary>
/// Clears all existing taxes and calculates and applies taxes for the given order.
/// </summary>
/// <param name="basket">The order to calculate taxes on.</param>
/// <returns>The total amount of tax applied.</returns>
/// <remarks>Any pre-existing tax line items will be removed from the order before the calculation.</remarks>
public static LSDecimal Recalculate(Order order)
{
//CLEAR ANY EXISTING TAXES
ClearExistingTaxes(order);
//DO NOT PROCESS TAXES IF USER BELONGS TO A TEXT EXEMPT GROUP
User user = order.User;
if (user != null)
{
foreach (UserGroup userGroup in user.UserGroups)
{
if (userGroup.Group != null && userGroup.Group.IsTaxExempt)
{
return(0);
}
}
}
//INITIALIZE TAXES
LSDecimal totalTax = 0;
//FINALIZE ANY TAXES FROM INTEGRATED PROVIDERS
TaxGatewayCollection taxGateways = Token.Instance.Store.TaxGateways;
foreach (TaxGateway taxGateway in taxGateways)
{
ITaxProvider provider = taxGateway.GetProviderInstance();
if (provider != null)
{
try
{
totalTax += provider.Recalculate(order);
}
catch (Exception ex)
{
Logger.Error("Could not calculate with the configured tax provider: " + taxGateway.ClassId, ex);
}
}
else
{
Logger.Error("Could not load the configured tax provider: " + taxGateway.ClassId);
}
}
return(totalTax);
}
public static TaxGatewayCollection LoadForStore(int maximumRows, int startRowIndex, string sortExpression)
{
int storeId = Token.Instance.StoreId;
//CREATE THE DYNAMIC SQL TO LOAD OBJECT
StringBuilder selectQuery = new StringBuilder();
selectQuery.Append("SELECT");
if (maximumRows > 0)
{
selectQuery.Append(" TOP " + (startRowIndex + maximumRows).ToString());
}
selectQuery.Append(" " + TaxGateway.GetColumnNames(string.Empty));
selectQuery.Append(" FROM ac_TaxGateways");
selectQuery.Append(" WHERE StoreId = @storeId");
if (!string.IsNullOrEmpty(sortExpression))
{
selectQuery.Append(" ORDER BY " + sortExpression);
}
Database database = Token.Instance.Database;
DbCommand selectCommand = database.GetSqlStringCommand(selectQuery.ToString());
database.AddInParameter(selectCommand, "@storeId", System.Data.DbType.Int32, storeId);
//EXECUTE THE COMMAND
TaxGatewayCollection results = new TaxGatewayCollection();
int thisIndex = 0;
int rowCount = 0;
using (IDataReader dr = database.ExecuteReader(selectCommand))
{
while (dr.Read() && ((maximumRows < 1) || (rowCount < maximumRows)))
{
if (thisIndex >= startRowIndex)
{
TaxGateway taxGateway = new TaxGateway();
TaxGateway.LoadDataReader(taxGateway, dr);
results.Add(taxGateway);
rowCount++;
}
thisIndex++;
}
dr.Close();
}
return(results);
}
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