/************************************************************************************************************
(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 = 'AJAX_addProduct.php';
var url_removeProductFromBasket = 'AJAX_removeProduct.php';
var txt_totalPrice = "";//'Total: ';


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);
	
	//document.getElementById('prodform_' + productId).submit();
}


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');
	
	//alert(ajaxObjects[ajaxIndex].response);
	
	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 row = document.getElementById('shopping_cart_items_product' + productItems[0]);
		var items = row.cells[0].innerHTML /1;
		items = items + 1;
		row.cells[0].innerHTML = items;

	}else{	// Product isn't allready in the basket - add a new row
		*/
		var tr = itemBox.insertRow(-1);
		tr.id = 'shopping_cart_items_product' + productItems[0]
		
		//var td = tr.insertCell(-1);
		//td.innerHTML = '1'; 	// Number of items
		
		var td = tr.insertCell(-1);
		td.innerHTML = productItems[1]; 	// Description
		
		var td = tr.insertCell(-1);
		td.style.textAlign = 'right';
		td.innerHTML = productItems[2]; 	// 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 = 'images/remove.gif';
		a.appendChild(img);
		
		//td.innerHTML = '<a href="#" onclick="removeProductFromBasket("' + productItems[0] + '");return false;"><img src="images/remove.gif"></a>';	
	//} 


	updateTotalPrice();
	
	ajaxObjects[ajaxIndex] = false;		
	
}

function redrawBasket(){
	
	$.ajax(
	{
		type : "GET",
		url : "ajax_get_cart_info.php",
		data : "",
		success : function(msg){
			
			/*var h1 = document.createElement('TD');
			h1.style.width = '50%';
			h1.style.textAlign = 'left';
			h1.innerHTML = 'Beskrivelse';
			
			var h2 = document.createElement('TD');
			h2.style.width = '40%';
			h2.style.textAlign = 'right';
			h2.innerHTML = 'Pris DKK';
			
			var h3 = document.createElement('TD');
			h3.style.width = '10%';
			
			var t = document.createElement('TR');
			
			
			itemBox.appendChild(t);
			
			var i = itemBox.childNodes[0];

			i.appendChild(h1);
			i.appendChild(h2);
			i.appendChild(h3);
			
			*/
			
			var itemBox = document.getElementById('shopping_cart_items');
			//itemBox.innerHTML = '<tr><th style="width: 50%; text-align: left;">Beskrivelse</th><th style="width: 40%; text-align: right;">Pris DKK</th><th style="width: 10%;"> </th></tr>';
			
			while(itemBox.hasChildNodes()){
				itemBox.removeChild(itemBox.lastChild);
			}
			
			var tr = itemBox.insertRow(-1);
			
			td = tr.insertCell(-1);
			td.style.width = '50%';
			td.style.textAlign = 'left';
			td.style.fontWeight = 'bold';
			td.innerHTML = 'Beskrivelse';
			
			td = tr.insertCell(-1);
			td.style.width = '40%';
			td.style.textAlign = 'right';
			td.style.fontWeight = 'bold';
			td.innerHTML = 'Pris DKK';

			td = tr.insertCell(-1);
			td.style.width = '10%';


			if (msg != ""){
			
				var items = msg.split('###');
				
				for (var i in items){
					rowData = items[i].split('|||');
					
					var tr = itemBox.insertRow(-1);
					tr.id = 'shopping_cart_items_product' + rowData[0]
	
					//var td = tr.insertCell(-1);
					//td.innerHTML = '1'; 	// Number of items
					
					var td = tr.insertCell(-1);
					td.innerHTML = rowData[1]; 	// Description
					
					var td = tr.insertCell(-1);
					td.style.textAlign = 'right';
					td.innerHTML = rowData[2]; 	// Price	
					
					var td = tr.insertCell(-1);
					var a = document.createElement('A');
					td.appendChild(a);
					a.href = '#';
					a.onclick = function(){ removeProductFromBasket(rowData[0]); return false;};
					var img = document.createElement('IMG');
					img.src = 'images/remove.gif';
					a.appendChild(img);
				}
			}
			updateTotalPrice();
		}
	});
	
}

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=1;no<itemBox.rows.length;no++){
			//totalPrice = totalPrice + (itemBox.rows[no].cells[0].innerHTML.replace(/[^0-9]/g) * itemBox.rows[no].cells[2].innerHTML);
			
			//henter item_id
			item_id = itemBox.rows[no].id.replace(/shopping_cart_items_product/, "");
			//alert(item_id);
			
			get_price(item_id,itemBox.rows[no].cells[1]);
			
			//if (itemBox.rows[no].cells[1].innerHTML == ""
			//alert(itemBox.rows[no].cells[1].innerHTML);
			//alert(parseFloat(itemBox.rows[no].cells[1].innerHTML));
			
			
			
			totalPrice = totalPrice + (1 * parseFloat(itemBox.rows[no].cells[1].innerHTML));
		
		}
		*/
		
		$.ajax(
		{
			type : "GET",
			url : "ajax_get_total_basket_price.php",
			data : "",
			success : function(msg){
				totalPrice = msg;
				document.getElementById('shopping_cart_totalprice').innerHTML = txt_totalPrice + totalPrice;
			}
		});
	}
}

function removeProductFromBasket(cartIndex)
{
	var productRow = document.getElementById('shopping_cart_items_product' + cartIndex);
	
	var numberOfItemCell = productRow.cells[0];
	//if(numberOfItemCell.innerHTML == '1'){
		//productRow.parentNode.removeChild(productRow);
	//}else{
	//	numberOfItemCell.innerHTML = numberOfItemCell.innerHTML/1 - 1;
	//}
	ajaxRemoveProduct(cartIndex);
}

function ajaxValidateRemovedProduct(ajaxIndex)
{
	if(ajaxObjects[ajaxIndex].response!='OK')alert('Error while removing product from the database');
	
	//Ronni - repaint.
	//location.reload(true);
	//RONNI:
	//Repaint basket!
	redrawBasket();
	
	updateTotalPrice();
	
}

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