$(document).ready( function () {

    // Remove redlinks if they exist upon pageload

    redlinks_removeall();

});

$(function($) {

	mw.loader.using( 'mediawiki.util' ).then( function () {

		var portletlink = mw.util.addPortletLink('p-tb', '#', 'Remove redlinks');

		$(portletlink).click( function(e) {

			e.preventDefault();

			// Default parameters, and begin script on regular view of article

			var loc = window.location.href;

			var redlinks; var i;

			

			// Gather all redlinks with class "new"

			redlinks = [];

			var a = document.getElementsByTagName('a');

			for (i = 0; i < a.length; i++) {

				if (ai].getAttribute('class') == "new") {

					redlinksredlinks.length = ai].href.replace('https://en.wikipedia.org/?title=','').replace('&action=edit&redlink=1','');

					redlinksredlinks.length-1 = redlinksredlinks.length-1].replace(/_/g,' ');

					redlinksredlinks.length-1 = decodeURIComponent(redlinksredlinks.length-1]);

				}

			}

			

			// Save all redlinks

			if (redlinks.length > 0) {

				localStorage.redlinks = JSON.stringify(redlinks);

				

				// If we are in the edit page, then remove redlinks automatically; if we are on the reading page, then go to the edit page

				if (window.location.href.indexOf('action') >= 0) redlinks_removeall();

				else {

					var pageTitle;

					if (window.location.href.indexOf('?title=') >= 0) {

						var regex = /\?title=(.+?)&/;

						var regexMatch = window.location.href.match(regex);

						pageTitle = regexMatch1];

					} else {

						pageTitle = window.location.href;

						if (window.location.href.indexOf('#') >= 0) pageTitle = pageTitle.substr(0, pageTitle.indexOf('#'));

						pageTitle = pageTitle.substr(window.location.href.indexOf('/wiki/')+6);

					}

					window.location.href = "/info/en/?search="+pageTitle+"?action=edit";

				}

			} else {

				alert('No redlinks!');

			}

		});

	});

});



function redlinks_removeall() {

    var wpTextbox1 = document.getElementById('wpTextbox1');

    if(!wpTextbox1) return;

	// Automatic removal of redlinks when stored.

    if (localStorage.redlinks !== "" && localStorage.redlinks !== undefined) {

		// Gather saved redlinks

		try { var redlinks = JSON.parse(localStorage.redlinks); } catch (e) {return;}

		

		// Regular expression to escape special characters

		var totalredlinks = 0;

		RegExp.quote = function(str) { return str.replace(/[.?*+^$[\]\\(){}|-]/g, "\\$&"); };



		for (i = 0; i < redlinks.length; i++) {

			// Regular expression for piped links and direct links

			var reglink1 = new RegExp('\\[\\[\\s*('+RegExp.quote(redlinksi]).replace(/\s/g, "[\\s\\_]*")+')\\s*\\|\\s*([^\\]]*)\\s*\\]\\]','gi');

			var reglink2 = new RegExp('\\[\\[\\s*('+RegExp.quote(redlinksi]).replace(/\s/g, "[\\s\\_]*")+')\\s*\\]\\]','gi');

			

			// Add total number of matches for both

			if (wpTextbox1.value.match(reglink1) !== null) totalredlinks += wpTextbox1.value.match(reglink1).length;

			if (wpTextbox1.value.match(reglink2) !== null) totalredlinks += wpTextbox1.value.match(reglink2).length; // Includes categories

			

			// Remove category rather than simply convert it to unlinked text

			if (redlinksi].substr(0,9) == "Category:") {

				var reglink3 = new RegExp('\\[\\[\\s*('+RegExp.quote(redlinksi])+')\\s*\\]\\]\\n','gi');

				wpTextbox1.value = wpTextbox1.value.replace(reglink3,"");

			}

			

			// Remove redlinks and convert to unlinked text

			wpTextbox1.value = wpTextbox1.value.replace(reglink1,"$2");

			wpTextbox1.value = wpTextbox1.value.replace(reglink2,"$1");

		}

		

		// Alert for summary of removed redlinks; total in edit summary

		if (totalredlinks > 0) {

			document.getElementById('wpSummary').value += "Removed "+totalredlinks+" redlink"+(totalredlinks==1?"":"s")+" via [[User:Alex 21/script-redlinks|script]].";

			alert("Automatically removed "+totalredlinks+" redlink"+(totalredlinks==1?"":"s")+"!");

		} else {

			// Redlinks were seen in the article but none were found in the wikicode - check the nevigational boxes for these redlinks

			alert('No redlinks in the article! (Check transcluded templates and the navigational boxes.)');

		}

		

		// Remove the template(s)

		wpTextbox1.value = wpTextbox1.value.replace(/\{\{[Cc]leanup-?\s*[Rr]ed\s*[Ll]inks?[^\}]*\}\}/g, "");

		wpTextbox1.value = wpTextbox1.value.replace(/\{\{[Rr]ed\s*links?[^\}]*\}\}/g, "");

		wpTextbox1.value = wpTextbox1.value.replace(/\{\{[Tt]oo many red links[^\}]*\}\}/g, "");

		

		// Clear all saved redlinks

		localStorage.redlinks = '';

	}

}