// ==UserScript==
// @name           Newegg cart to post converter for eggxpert.com
// @namespace      http://userscripts.org/users/62850
// @description    Converts the cart in to postable html that has been patched for the forums
// @include        http://secure.newegg.com/Shopping/ShoppingCart.aspx*
// @include        http://secure.newegg.ca/Shopping/ShoppingCart.aspx*
// @version        2
// @grant          none
// @downloadURL none
// ==/UserScript==

function findEle(target,i,e){
	if(i==9)
		return document.evaluate(target, e?e:document, null, i, null).singleNodeValue;
	else
		return document.evaluate(target, e?e:document, null, i, null);
}
function inArray(arr,val){
	if((arr.constructor==Array)===false){
		if(arr.toString().indexOf(',')!=-1){
			arr=arr.split(',');
		}
		else{
			if(arr==val){
				return true;
			}
			else{
				return false;
			}
		}
	}
	for(var i=0;i<arr.length;i++){
		if(arr[i]==val){
			return true;
		}
	}
	return false;
}
function make(tag){
	return document.createElement(tag);
}
var holder=findEle('.//table[@class="head"]/tbody/tr[@class="tool-bar"]/td',6,false),btn;
if(holder.snapshotLength==2){
	btn=make('a');
	btn.className='button button-mini button-tertiary';
	btn.href="javascript:return false;";
	btn.textContent='Generate HTML Code';
	btn.title="HTML code for posting on forums";
	btn.addEventListener('click',function(){
		var table,tbody,tr,td,div,
			i,cart,item,img,IMG,a,txt,items=Array();
		table=make('table');
		table.appendChild(make('tbody'));
		tbody=table.childNodes[0];
		tr=make('tr');
		td=make('th');
		td.textContent='Item';
		td.setAttribute('colspan',2);
		tr.appendChild(td);
		td=make('th');
		td.textContent='Quanity';
		tr.appendChild(td);
		td=make('th');
		td.textContent='Price';
		tr.appendChild(td);
		tbody.appendChild(tr);
		cart=findEle('.//table[@class="shipping-group"]/tbody/tr',6);
		for(i=0;i<cart.snapshotLength;i++){
			item=cart.snapshotItem(i);
			tr=make('tr');

			td=make('td');
			img=make('img');
			IMG=findEle('./td/div/a/img[@class="l-block product-image"]',9,item);
			img.src=IMG.src;
			td.appendChild(img);
			tr.appendChild(td);

			td=make('td');
			a=make('a');
			a.href=IMG.parentNode.href;
			a.textContent=IMG.parentNode.title;
			td.appendChild(a);
			tr.appendChild(td);
			
			td=make('td');
			txt=findEle('./td[@width="50px"]/input',9,item);
			td.textContent=txt?txt.value:findEle('./td[@width="50px"]/div',9,item).textContent;
			tr.appendChild(td);

			a=a.href.slice(a.href.lastIndexOf('=')+1);
			if(!inArray(items,a))
				items.push(a+'|'+td.textContent);

			td=make('td');
			txt=findEle('./td[@align="right"]//li[starts-with(@class,"price-current")]',9,item);
			td.textContent=txt?txt.textContent.replace(/(\s|\t|\n)/g,''):'Combo';
			a=make('a');
			a.textContent='Add to cart';
			a.href='http://secure.newegg.com/Shopping/AddToCart.aspx?Submit=ADD&ItemList='+items[items.length-1];
			td.appendChild(make('br'));
			td.appendChild(a);
			tr.appendChild(td);

			tbody.appendChild(tr);
		}
		cart=findEle('.//table[@class="shipping-group"]/tfoot',9);
		tr=make('tr');

		td=make('td');
		td.setAttribute('colspan',3);
		td.textContent="Subtotal:";
		tr.appendChild(td);

		txt=findEle('.//span[@class="amount"]',6,cart);
		td=make('td');
		td.textContent=txt.snapshotItem(0).textContent.replace(/(\s|\t|\n)/g,'')
		tr.appendChild(td);

		tbody.appendChild(tr);
		tr=make('tr');

		td=make('td');
		td.setAttribute('colspan',3);
		td.textContent="Shipping:";
		tr.appendChild(td);

		txt=findEle('.//span[@class="amount"]',6,cart);
		td=make('td');
		td.textContent=txt.snapshotItem(1).textContent.replace(/(\s|\t|\n)/g,'')
		tr.appendChild(td);

		tbody.appendChild(tr);

		cart=findEle('.//table[@class="applied-code"]/tbody/tr',6,false);
		for(i=0;i<cart.snapshotLength;i++){
			tr=make('tr');
			item=cart.snapshotItem(i);
			td=make('td');
			td.setAttribute('colspan',3);
			td.textContent='Promo Code: '+findEle('./td/strong',9,item).textContent;
			tr.appendChild(td);
			td=make('td');
			td.textContent=findEle('./td[@class="discount"]',9,item).textContent;
			tr.appendChild(td);
			tbody.appendChild(tr);
		}
		tr=make('tr');

		td=make('td');
		td.setAttribute('colspan',3);
		td.textContent="Grand Total:";
		tr.appendChild(td);

		td=make('td');
		td.textContent=findEle('.//td[@class="grand-total"]/span[@class="amount"]',9,false).textContent.replace(/(\s|\t|\n)/g,'')
		tr.appendChild(td);

		tbody.appendChild(tr);
		div=make('div');
		div.appendChild(table);
		a=make('a');
		a.href='http://secure.newegg.com/Shopping/AddToCart.aspx?Submit=ADD&ItemList='+items.join(',');
		a.textContent='Add all to cart';
		div.appendChild(a);

		window.open('data:text/html;charset=utf-8,'+encodeURIComponent('<html><head><title>HTML Code to Post</title><head><body>If you would like to clean the html code, paste it in the <a href="http://tools.arantius.com/tabifier">Tabifier</a>.<textarea style="width:100%;height:calc(100% - 21px);" id="txtBox"></textarea></body></html>')).addEventListener('load',function(){
			this.document.getElementById('txtBox').value=div.innerHTML;
		},false);
	},false);
	holder.snapshotItem(1).appendChild(btn);
}