/************************************************************************************************************
(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 = 25;
var url_addProductToBasket = '/order/addproduct/';
var url_removeProductFromBasket = '/order/removeproduct/';
var txt_totalPrice = 'Сумма заказа: ';
var txt_totalPositions = 'Позиций заказано: ';
var txt_allowedKatori = 'Можно потратить: '


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;
	
	ajaxAddProduct(productId);
	
	/*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 showAjaxBasketContent(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
	var user_balls_current = 0;
	if(document.getElementById('user_balls')){
		user_balls_current = parseInt(document.getElementById('user_balls').innerHTML);
	}
	var user_balls_price = productItems[4];
	if(user_balls_price >  user_balls_current){
		alert('Недостаточно Катори\n');
	}
	else{
		
		if(document.getElementById('shopping_cart_items_product' + productItems[0])){	// A product with this id is allready in the basket - just add number items
			var row = document.getElementById('shopping_cart_items_product' + productItems[0]);
			var items = row.cells[2].innerHTML /1;
			items = items + 1;
			row.cells[2].innerHTML = items;
			
		}else{	// Product isn't allready in the basket - add a new row
			var tr = itemBox.insertRow(-1);
			/*var tr2 = itemBox.insertRow(-1); //separator
				tr2.className = 'cart_separator';
				tr2.innerHTML = "<td class='cart_separator' colspan='7'><img height='1' width='1' src='/img/blank.gif' /></td>";
			*/
			tr.id = 'shopping_cart_items_product' + productItems[0]
			
			
			// Image 32px :  Cell[0]
			var td = tr.insertCell(-1);
			td.style.cssText = 'padding:0px 7px 0px 0px;';
			td.innerHTML = "<img height='32' width='32' style='display:block;' src='/img/items32px/"+productItems[0]+".png' />"; 	// Number of items
			
			// Name Cell[1]
			var td = tr.insertCell(-1);
			if(productItems[4] > 0){
				td.innerHTML = productItems[1] + '<br />(' + productItems[4] + ' катори)'; 	
			}
			else	td.innerHTML = productItems[1]; 	// Description
			
			
			// Number of items cell [2]
			var td = tr.insertCell(-1);
			td.className = 'nolp';
			td.style.cssText = 'font-weight:bold;';
			td.innerHTML = '1'; 	// Description
					
			// x 		Cell[3]
			var td = tr.insertCell(-1);
			td.className = 'nolp';
			td.innerHTML = '&#215;'; 	// Description
			
			//	Price		Cell[4]
			var td = tr.insertCell(-1);
			td.className = 'nolp';
			td.innerHTML = productItems[2]; 	// Price	
			
			// .р 		Cell[5]
			var td = tr.insertCell(-1);
			td.innerHTML = 'р.'; 	// rowsum	
			
			//  Cell[6]
			var td = tr.insertCell(-1);
			// minus one
			var img = document.createElement('IMG');
			img.src = '/img/remitem.gif';
			img.onclick = function(){ removeProductFromBasket(productItems[0]); return false; };
			td.appendChild(img);
			// plus one
			var img = document.createElement('IMG');
			img.src = '/img/additem.gif';
			img.onclick = function(){ addToBasket(productItems[0]); return false; };
			td.appendChild(img);
			//td.innerHTML = '<a href="#" onclick="removeProductFromBasket("' + productItems[0] + '");return false;"><img src="/img/remove.gif"></a>';	
			
			// ProductId Cell[7]
			var td = tr.insertCell(-1);
			td.style.display = 'none';
			td.innerHTML = productItems[0];

					// ProductBalls Cell[8]
			var td = tr.insertCell(-1);
			td.style.display = 'none';
			td.innerHTML = productItems[4];
		} 

	}
	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 cur_balls_block =document.getElementById('cur_balls');
	var totalBalls = 0;
	if(cur_balls_block){
		totalBalls = parseInt(cur_balls_block.value);
	}
	var totalPrice = 0;
	var totalPositions = 0;
	var min_total = parseInt(document.getElementById('min_total_price').innerHTML);
  
	if(document.getElementById('shopping_cart_totalprice')){
		for(var no=1;no<itemBox.rows.length;no++) {
			totalPrice = totalPrice + ((itemBox.rows[no].cells[2].innerHTML.replace(/[^0-9]/g)/1) * (itemBox.rows[no].cells[4].innerHTML.replace(/[^0-9]/g)/1));	
			totalPositions = totalPositions + parseInt(itemBox.rows[no].cells[2].innerHTML.replace(/[^0-9]/g));
			totalBalls = totalBalls - ((itemBox.rows[no].cells[2].innerHTML.replace(/[^0-9]/g)/1) * (itemBox.rows[no].cells[8].innerHTML.replace(/[^0-9]/g)/1));
			if(!document.getElementById('slidingProduct'+itemBox.rows[no].cells[7].innerHTML)){
				var slip = document.createElement('DIV');
				slip.id = 'slidingProduct'+itemBox.rows[no].cells[7].innerHTML;
				document.getElementById('more_flyers').appendChild(slip);
			}
		}	

                allowedKatori  = 10*Math.ceil(totalPrice/100);
		document.getElementById('shopping_cart_totalprice').innerHTML = '' + txt_totalPrice + totalPrice + ' руб.';
		document.getElementById('shopping_cart_totalpositions').innerHTML = '' + txt_totalPositions + totalPositions + '';
                document.getElementById('shopping_cart_allowedkatori').innerHTML = '' + txt_allowedKatori + allowedKatori + ' катори';
		document.getElementById('user_balls').innerHTML = '' +totalBalls + '';
		var err_answer = '';
		if(totalPrice < min_total){
			/*document.getElementById('order_error').innerHTML = 'not enough mana';*/
			document.getElementById('order_error').style.display = 'block';
			document.getElementById('basket_order_link').style.display = 'none';
			err_answer = 'disabled';
		}
		else {
			document.getElementById('order_error').style.display = 'none';
			document.getElementById('basket_order_link').style.display = 'block';
		}
	}	
	ScaleUpdate(totalPrice);
}

function removeProductFromBasket(productId)
{
	var productRow = document.getElementById('shopping_cart_items_product' + productId);
	//var rowsum = productRow.cells[3].innerHTML /1; //Row summary
	var pprice = productRow.cells[4].innerHTML /1; // Item Price
	var numberOfItemCell = productRow.cells[2];
	if(numberOfItemCell.innerHTML == '1'){
		productRow.parentNode.removeChild(productRow);   
   
	}else{
		numberOfItemCell.innerHTML = numberOfItemCell.innerHTML/1 - 1;
		//rowsum = rowsum - pprice;
		//productRow.cells[3].innerHTML = rowsum;
	}
	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		
}

function GetBalls(){
	var node = document.getElementById('user_balls');
	var result = -1;
	if(node){
		result = parseInt(node.innerHTML);
	}
	return result;
}
function SetBalls(value){
	var node = document.getElementById('user_balls');
	if(node){
		node.innerHTML = value;
	}
}