// ==UserScript==
// @name        Wolfram|Alpha in Google Search
// @namespace   /u/iansan5653
// @include     https://www.google.com/search*
// @description Integrates Wolphram|Alpha search results with Google search results seamlessly.
// @version     1.3
// @grant       none
// @icon        http://cdn.altrn.tv/icons/wolfram-alpha_3195.png
// @require       http://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js
// ==/UserScript==

var YOUR_APPID = "YOUR-APPIDGOESHERE";

this.$ = this.jQuery = jQuery.noConflict(true);

if($(".hdtb_msel").text() == "Web") { //For example, not images

var searchUrl = window.location + '';

function getQuery(sURL) { //Gets current search terms
    var sURLParams = sURL.split(/(\?|\&)/g);
    for (var i = 0; i < sURLParams.length; i++) {
        var sParamName = sURLParams[i].split('=');
        if (sParamName[0] == "q") {
            return sParamName[1];
        }
    }
}

var query = getQuery(searchUrl);

var readQuery = decodeURIComponent(query).replace(/\+/g, ' ');

var boxwidth = $("#center_col").width();

var queryURL = "https://thingproxy.freeboard.io/fetch/http://api.wolframalpha.com/v2/query?input=" + query + "&appid=" + YOUR_APPID + "&format=image&reinterpret=true&podindex=1,2&width=" + boxwidth;

function getHTML(tElement) {
  return $('<div>').append(tElement.clone()).html();
}

$("#rso").prepend('<div id="wacontainer"><div id="wabox"><a href="#" id="querynow">Query Wolfram|Alpha</a></div><a href="http://www.wolframalpha.com/input/?i=' + query + '" title="Wolfram|Alpha results for: ' + readQuery + '"><div id="wafooter"><img id="walogo" src="http://imagizer.imageshack.us/v2/150x100q90/674/EsIfDb.png" width="108.33" height="13" alt="Wolfram|Alpha"/></a></div></div>');


$("#querynow").click(function() {
	$("#wabox").empty();
  $("#wabox").html("<img id='wathrobber' src='http://imageshack.com/a/img537/9652/9JJhcO.gif' height='16' width='16' alt='…'/> Querying…");
  $.get(queryURL, function (data) {
    var wapods = $(data).find("pod");
    var sourceURL = $(data).find("source").first().attr("url");
    if (wapods.length !== 0) {
  		$("#wabox").empty();
      $("#wabox").append(getHTML($(wapods[0]).find("img").first()))
      					 .append("<hr id='wahr'>")
								 .append(getHTML($(wapods[1]).find("img").first()));
    } else {
    	$("#wabox").text("No results found.");
    	$("#wacontainer").fadeOut(5000);
    }
	});
});

$('head').append('<style>#wacontainer {  margin-bottom: 23px;  font-size: 0.7em;  width: calc(100% + 30px);  }  #wabox {  width: calc(100% - 30px);  padding: 15px;  box-shadow: 0px 1px 4px 0px rgba(0, 0, 0, 0.2);  }  #wafooter {  padding: 6px 20px 20px 0;  float: right;  }  #wabox>img:last-child {  display: block;  margin-top: 1em;  }  #wathrobber {  display: inline !important;  vertical-align: middle;  margin: 0 !important;  }  #wahr {  border: 1px solid #ccc;  }</style>');

}