invoiceContent = []

var total = 0
foreach ( invoiceContent as item ) {
   itemPrice = item.snapshot.price
   quantity = item.quantity
   itemTotal = 0
   if(item.offer!=null) {
      itemPrice = item.offer.price
      quantity = item.offer.quantity
   }
   if(item.variant!=null) {
   	  itemPrice = item.variant.price
   }
   if(item.variant==null && item.offer==null && item.snapshot.tiers!=null) {
      foreach(item.snapshot.tiers as tier) {
      	if(item.quantity>=tier.quantity) {
      	 itemPrice = tier.price
      	}
      }
   }

   itemTotal = itemPrice * quantity
   total = total + itemTotal

   invoiceContent.push({
   	name: item.name,
   	price: itemPrice,
   	quantity: quantity,
   	unit: item.unit,
   	total: itemTotal
   })

}