/************************************************************************************************************
(C) www.dhtmlgoodies.com, March 2006

This is a script from www.dhtmlgoodies.com. You will find this and a lot of other scripts at our website.	

Terms of use:
You are free to use this script as long as the copyright message is kept intact. However, you may not
redistribute, sell or repost it without our permission.

Version:
	1.0	Released	March. 3rd 2006

Thank you!

www.dhtmlgoodies.com
Alf Magne Kalleland

************************************************************************************************************/

var flyingSpeed = 20;
var url_addProductToBasket = 'addProduct/';
var url_removeProductFromBasket = 'removeProduct/';

var shopping_cart_div = false;
var flyingDiv = false;
var currentProductDiv = false;

var shopping_cart_x = false;
var shopping_cart_y = false;

var slide_xFactor = false;
var slide_yFactor = false;

var diffX = false;
var diffY = false;

var currentXPos = false;
var currentYPos = false;

var ajaxObjects = new Array();


function shoppingCart_getTopPos(inputObj)
{		
  var returnValue = inputObj.offsetTop;
  while((inputObj = inputObj.offsetParent) != null){
  	if(inputObj.tagName!='HTML')returnValue += inputObj.offsetTop;
  }
  return returnValue;
}

function shoppingCart_getLeftPos(inputObj)
{
  var returnValue = inputObj.offsetLeft;
  while((inputObj = inputObj.offsetParent) != null){
  	if(inputObj.tagName!='HTML')returnValue += inputObj.offsetLeft;
  }
  return returnValue;
}
	

function addToBasket(productId)
{
	if(!shopping_cart_div) {
        shopping_cart_div = document.getElementById('shopping_cart');
    }
    
	if(!flyingDiv){
		flyingDiv = document.createElement('DIV');
		flyingDiv.style.position = 'absolute';
		document.body.appendChild(flyingDiv);
	}
	
	
    shopping_cart_x = shoppingCart_getLeftPos(shopping_cart_div);
	shopping_cart_y = shoppingCart_getTopPos(shopping_cart_div);
    
    currentProductDiv = document.getElementById('slidingProduct' + productId);
	
	currentXPos = shoppingCart_getLeftPos(currentProductDiv);
    currentYPos = shoppingCart_getTopPos(currentProductDiv);
    
	diffX = shopping_cart_x - currentXPos;
	diffY = shopping_cart_y - currentYPos;
	

	
	var shoppingContentCopy = currentProductDiv.cloneNode(true);
	shoppingContentCopy.id='';
	flyingDiv.innerHTML = '';
	flyingDiv.style.left = currentXPos + 'px';
	flyingDiv.style.top = currentYPos + 'px';
	flyingDiv.appendChild(shoppingContentCopy);
	flyingDiv.style.display='block';
	flyingDiv.style.width = currentProductDiv.offsetWidth + 'px';
	flyToBasket(productId);
	
}


function flyToBasket(productId)
{
	var maxDiff = Math.max(Math.abs(diffX),Math.abs(diffY));
	var moveX = (diffX / maxDiff) * flyingSpeed;;
	var moveY = (diffY / maxDiff) * flyingSpeed;	
	
	currentXPos = currentXPos + moveX;
	currentYPos = currentYPos + moveY;
	
	flyingDiv.style.left = Math.round(currentXPos) + 'px';
	flyingDiv.style.top = Math.round(currentYPos) + 'px';	
	
	
	if(moveX>0 && currentXPos > shopping_cart_x){
		flyingDiv.style.display='none';		
	}
	if(moveX<0 && currentXPos < shopping_cart_x){
		flyingDiv.style.display='none';		
	}
		
	if(flyingDiv.style.display=='block')setTimeout('flyToBasket("' + productId + '")',10); else ajaxAddProduct(productId);	
}

function statusValidation(ajaxIndex) {
    
    if (ajaxObjects[ajaxIndex].responseStatus[0] == 403) {
        document.location = ajaxObjects[ajaxIndex].response;
        return false; 
    }
    
    return;
}

function showAjaxBasketContent(ajaxIndex)
{
	statusValidation(ajaxIndex);
    
    // Getting a reference to the shopping cart items table
	var itemBox = document.getElementById('shopping_cart_items');
	
	var productItems = ajaxObjects[ajaxIndex].response.split('|||');	// Breaking response from Ajax into tokens
    
	if(document.getElementById('shopping_cart_items_product_' + productItems[0])){	// A product with this id is allready in the basket - just add number items
		var numberOfItemInput = document.getElementById('number_' + productItems[0]);
        numberOfItemInput.value = numberOfItemInput.value/1 + 1;
    }else{	// Product isn't allready in the basket - add a new row
		if (productItems[1] != undefined) {
            var tr = itemBox.insertRow(-1);
		    tr.id = 'shopping_cart_items_product_' + productItems[0]
		
            var td = tr.insertCell(-1);
            td.style.textAlign = 'left';
    		td.innerHTML = productItems[1]; 	// Description
    		
    		var td = tr.insertCell(-1);
            td.style.width = '40px';
            var div = document.createElement("div");
            div.className = 'input_tlo_koszyk lewa_kosz';
            td.appendChild(div);
            div = document.createElement("div");
            div.className = 'input_tlo_koszyk srodek_kosz';
            var input = document.createElement("input");
            input.className = 'input_koszyk';
            input.setAttribute("id",'number_'+productItems[0]);
            input.setAttribute("readonly","readonly");
            input.value = '1';
            div.appendChild(input);
            td.appendChild(div);
            div = document.createElement("div");
            div.className = 'input_tlo_koszyk prawa_kosz';
            td.appendChild(div);
            
    		var td = tr.insertCell(-1);
    		td.style.textAlign = 'right';
    		td.innerHTML = productItems[2]+' zł'; 	// Price	
    		
    		var td = tr.insertCell(-1);
    		var a = document.createElement('A');
    		td.appendChild(a);
    		a.href = '#';
    		a.onclick = function(){ removeProductFromBasket(productItems[0]); };
    		var img = document.createElement('IMG');
    		img.src = mediaUrl+'images/content/basket/koszyk_x.jpg';
    		a.appendChild(img);
    		//td.innerHTML = '<a href="#" onclick="removeProductFromBasket("' + productItems[0] + '");return false;"><img src="images/remove.gif"></a>';
        }	
	} 

    if (productItems[1] != undefined) {
	   updateTotalPrice();
    }
	
	ajaxObjects[ajaxIndex] = false;		
	
}

function updateTotalPrice()
{
	var itemBox = document.getElementById('shopping_cart_items');
	// Calculating total price and showing it below the table with basket items
	var totalPrice = 0;
	if(document.getElementById('shopping_cart_totalprice')){
		for(var no=0;no<itemBox.rows.length;no++){
			var split = itemBox.rows[no].id.split('_');
            totalPrice = totalPrice + (document.getElementById('number_'+split[4]).value.replace(/[^0-9]/g) * parseFloat(itemBox.rows[no].cells[2].innerHTML));
	    }		
		document.getElementById('shopping_cart_totalprice').innerHTML = '<b>'+ totalPrice.toFixed(2).replace('.',',') + ' zł</b>';
		
	}	
	
}

function removeProductFromBasket(productId)
{
	var productRow = document.getElementById('shopping_cart_items_product_' + productId);
	
	var numberOfItemInput = document.getElementById('number_' + productId);
	if(numberOfItemInput.value == '1'){
		productRow.parentNode.removeChild(productRow);	
	}else{
		numberOfItemInput.value = numberOfItemInput.value/1 - 1;
	}
	updateTotalPrice();
	ajaxRemoveProduct(productId);	
}

function ajaxValidateRemovedProduct(ajaxIndex)
{
	//if(ajaxObjects[ajaxIndex].response != 'OK')alert('Error while removing product from the database');
	
}

function ajaxRemoveProduct(productId)
{
	var ajaxIndex = ajaxObjects.length;
	ajaxObjects[ajaxIndex] = new sack();
	ajaxObjects[ajaxIndex].requestFile = url_removeProductFromBasket;	// Saving product in this file
	ajaxObjects[ajaxIndex].setVar('productIdToRemove',productId);
	ajaxObjects[ajaxIndex].onCompletion = function(){ ajaxValidateRemovedProduct(ajaxIndex); };	// Specify function that will be executed after file has been found
	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function		
}

function ajaxAddProduct(productId)
{
	var ajaxIndex = ajaxObjects.length;
	ajaxObjects[ajaxIndex] = new sack();
	ajaxObjects[ajaxIndex].requestFile = url_addProductToBasket;	// Saving product in this file
	ajaxObjects[ajaxIndex].setVar('productId',productId);
	ajaxObjects[ajaxIndex].onCompletion = function(){ showAjaxBasketContent(ajaxIndex); };	// Specify function that will be executed after file has been found
	ajaxObjects[ajaxIndex].runAJAX();		// Execute AJAX function		
}