// ==UserScript==
// @include       http://toolserver.org/~nikola/svgtranslate.php?*
// ==/UserScript==

function showThumbnail(resp) {
	if(!resp || !resp.query || !resp.query.pages) {
		return;
	}
	resp = resp.query.pages;
	for(var e in resp) {
		resp = resp[e];
		break;
	}
	if(!resp || !resp.imageinfo || !resp.imageinfo[0]) {
		return;
	}
	resp = resp.imageinfo[0];
	if(!resp.thumburl || !resp.thumbwidth || !resp.thumbheight || !resp.descriptionurl) {
		return;
	}
	var a = document.createElement("a");
	a.setAttribute("href", resp.descriptionurl);
	var img = a.appendChild(document.createElement("img"));
	img.setAttribute("src", resp.thumburl);
	img.setAttribute("width", resp.thumbwidth);
	img.setAttribute("height", resp.thumbheight);
	img.style.border = "1px solid #aaa";
	img.style.cssFloat = "right";
	document.body.insertBefore(a, document.forms[0]);
}

(function() {
	var path = /^(?:&|\?)svg=([^&]+)/.exec(window.location.search);
	if(!path) {
		return;
	}
	path = /^(?:https?:\/\/)(?:[^\/]+)\/([^\/]+)\/([^\/]+)\/.+?\/([^\/]+)$/.exec(
			decodeURIComponent(path[1]));
	if(!path) {
		return;
	}
	var parameters = [
			"action=query",
			"prop=imageinfo",
			"iiprop=url",
			"iiurlwidth=600",
			"iiurlheight=600",
			"format=json",
			"callback=showThumbnail",
			"titles=" + "File:" + encodeURIComponent(path[3])];
	var api = encodeURI("http://" + path[2] + "." + path[1] + ".org/w/api.php");
	var script = document.createElement("script");
	script.setAttribute("type", "text/javascript");
	script.setAttribute("encoding", "UTF-8");
	script.setAttribute("defer", "defer");
	script.setAttribute("src", api + "?" + parameters.join("&"));
	document.getElementsByTagName("head")[0].appendChild(script);
})();