<?
// Class for add/remove/remove all  item in cart
class classCart
{	
	/**
	 * array of items info in "cart"
	 * 
	 * @var 2 dimensions array
	 * @access public
	 */
	var $items;
	
	
	function AddItem($id, $qty, $type)
	{
		if( $this->_duplicate($id,$type)=="not")
		{
			$this->items[] = array(itemid=>"$id",itemqty=>"$qty",type=>"$type");
		} else {			
			for($i=0;$i<count($this->items);$i++)
			{
				if($this->items[$i]['itemid']== $id && $this->items[$i]['type']==$type)
				{
					//$this->items[$i]['itemqty'] = $qty; //replace
					$this->items[$i]['itemqty'] = $this->items[$i]['itemqty']+$qty; //increase
					break;
				}
			}
		}		
	}
	function UpdateItem($id,$qty,$type)
	{
		for($i=0;$i<count($this->items);$i++)
		{
			if($this->items[$i]['itemid']== $id && $this->items[$i]['type']==$type)
			{
				$this->items[$i]['itemqty'] = $qty;
				//return $this->items[$i]['itemqty'];exit;
				break;
			}
		}
	}
	
	function RemoveItem($id,$type)
	{
		// loop thru array
		for($i=0;$i< count($this->items);$i++)
		{
			if($this->items[$i]['itemid']==$id && $this->items[$i]['type']==$type)
			{
				// Remove the Item in Cart
				unset($this->items[$i]);
		
				// Reindexing array
				$this->items = array_values($this->items);				
				return true;
			}
		}
		return false;
	}
	function RemoveAll()
	{
		// delete whole array
		unset($this->items);	
	}
	
	function _duplicate($id,$type)
	{
		$found = "not";
		for($i=0;$i<count($this->items);$i++)
		{
			if($this->items[$i]['itemid']==$id && $this->items[$i]['type']==$type)
			{
				$found = "yes";
				break;
			}
		}
		return $found;
	}
	function getItems()
	{
		return $this->items;
	}
	function getCount()
	{
		return count($this->items);
	}
	
	function getTotalItems()
	{
		$total_items=0;
		
		for($i=0;$i<count($this->items);$i++) {
			$total_items+=$this->items[$i]['itemqty'];
		}
		return $total_items;
	}
	
}
?>