import mx.collections.ArrayCollection;
import mx.controls.NumericStepper;
import mx.events.DataGridEvent;

[Bindable]
public var credits : ArrayCollection = new ArrayCollection( [ {quantity:1, price:8}, {quantity:100, price:3}, {quantity:1000, price:1} ] );

[Bindable]
public var articles : ArrayCollection = new ArrayCollection( [ {product:"Crédit", pu:8, quantity:1, pt:8}, {product:"Dazel", pu:100, quantity:1, pt:100}, {product:"Telemed", pu:500, quantity:1, pt:500} ] );

[Bindable]
public var basket : ArrayCollection = new ArrayCollection();

[Bindable]
private var totalPriceWithTaxes : Number = 0;

[Bindable]
public var vatValue : Number = 0;

[Bindable]
private var totalPriceWithoutTaxes : Number = 0;

private function modifyEditedData( event : DataGridEvent ) : void
{
    var colName : String = basketDataGrid.columns[ event.columnIndex ].dataField;

    if( colName == "quantity" )
    {
        basketDataGrid.editedItemRenderer.data.quantity = NumericStepper(basketDataGrid.itemEditorInstance).value;
        
        if( basketDataGrid.editedItemRenderer.data.product == "Crédit" )
        {
        	if( basketDataGrid.editedItemRenderer.data.quantity < 100 )
        		basketDataGrid.editedItemRenderer.data.pu = 8;
        	
        	if( basketDataGrid.editedItemRenderer.data.quantity > 99 && basketDataGrid.editedItemRenderer.data.quantity < 1000 )
        		basketDataGrid.editedItemRenderer.data.pu = 3;
        		
        	if( basketDataGrid.editedItemRenderer.data.quantity > 999 )
        		basketDataGrid.editedItemRenderer.data.pu = 1;	
        }
        
        basketDataGrid.editedItemRenderer.data.pt = basketDataGrid.editedItemRenderer.data.quantity * basketDataGrid.editedItemRenderer.data.pu;
        
        basketDataGrid.dataProvider.refresh();
   }
   
   totalPriceWithTaxes = 0;
   
   for each( var value : * in basket )
   {
   		totalPriceWithTaxes += value.pt;
   }
   
   vatValue = totalPriceWithTaxes * 0.20;
   
   totalPriceWithoutTaxes = totalPriceWithTaxes - vatValue;
}

private function updateBasket() : void
{
	totalPriceWithTaxes = 0;
   
   for each( var value : * in basket )
   {
   		totalPriceWithTaxes += value.pt;
   }
   
   vatValue = totalPriceWithTaxes * 0.20;
   
   totalPriceWithoutTaxes = totalPriceWithTaxes - vatValue;
}