//
// Author: Simon Amor
//
// ==UserScript==
// @name           Shartak Rifle Reload
// @namespace      http://www.shartak.com/
// @description    Reload rifles until all rifles loaded or out of bullets (or AP)
// @include        http://www.shartak.com/game.cgi
// ==/UserScript==

var bullet_li_tag = document.evaluate("//form//input[@value='rifle bullet']//parent::form//parent::li", document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

var bullets = 0;
if (bullet_li_tag.snapshotLength) {
    bullets = bullet_li_tag.snapshotItem(0).textContent.replace(" x ","");
}

var rifle_li_tag = document.evaluate("//form//input[@value='rifle']//parent::form//parent::li", document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);

// find out if we have any rifles that aren't full already
var rifles = 0;
if (rifle_li_tag.snapshotLength) {
    for (var i = 0; i < rifle_li_tag.snapshotLength; i++) {
        var rifle_item = rifle_li_tag.snapshotItem(i).textContent;
        if (rifle_item.match(/\(0\)/)) {
            rifles ++;
        } else if (rifle_item.match(/\(1\)/)) {
            rifles ++;
        }
    }
}

// Only if we have bullets and empty rifles..
if (bullets > 0 && rifles > 0) {
    var bullet_li = bullet_li_tag.snapshotItem(0);
    var refresh_form = document.evaluate("//form//input[@value='Refresh']//parent::form", document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
    // Find the 'Refresh' button and stick the 'Max Load' button after it.
    if (refresh_form.snapshotLength) {
    	newform = document.createElement('form');
	    newform.innerHTML = "<input type='submit' value='Reload Rifles' class='txbuttonsubmit'>";
        newform.setAttribute("method", "POST");
        newform.setAttribute("class", "formblock");
        newform.setAttribute("action", "/game.cgi");
        newform.setAttribute("id", "gm_max_load");
        bullet_li.parentNode.parentNode.insertBefore(newform,refresh_form.snapshotItem(0).nextSibling);
        document.getElementById("gm_max_load").addEventListener('click', function(event) {
				GM_setValue("shartak_rifle_reload", 1);
   			}, true);

        if (GM_getValue("shartak_rifle_reload")) {
            var bullet_form = document.evaluate("//form//input[@value='rifle bullet']//parent::form", document, null, XPathResult.ORDERED_NODE_SNAPSHOT_TYPE, null);
            if (bullet_form.snapshotLength) {
                bullet_form.snapshotItem(0).setAttribute("id", "rifle_bullet_load");
                document.getElementById("rifle_bullet_load").submit();
            }
        }
    }
} else if (GM_getValue("shartak_rifle_reload")) {
    GM_setValue("shartak_rifle_reload", 0);
  	var info_boxes = document.evaluate(
		"//p[@class='info']",
		document,
		null,
		XPathResult.ORDERED_NODE_SNAPSHOT_TYPE,
		null);
	if (info_boxes.snapshotLength) {
	    info_boxes.snapshotItem(0).innerHTML = info_boxes.snapshotItem(0).innerHTML + " <b>Auto-reload complete</b>";
	}
}