$(function($) {

	setTimeout(function() {

		$.when( mw.loader.using( 'mediawiki.util']), $.ready ).then(function() {

			var portletlink = mw.util.addPortletLink('p-tv', '#', 'Update episodes');

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

				e.preventDefault();

				// Textbox contents

				var NumEpisodesM;

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

				var wpTextbox1_V = wpTextbox1.value.split("\n");

				

				// Declare variables

				var NumEpisodes = false; var RTitle = false; var line;

				var OriginalAirDate = false; var EpisodeNumber = false; var RmvRefs = false;

				

				// Go though contents one line at a time

				for (var i = 0; i < wpTextbox1_V.length; i++) {	

					// Retreive particular line

					line = wpTextbox1_Vi];

					

					// Remove references param set, and on to the next episode row

					if (RmvRefs && (line.toLowerCase().indexOf('episode list') >= 0 || line.trim() == '}}')) RmvRefs = false;

					

					// Update num_episodes in Template:Infobox_television, if it exists

					if (!NumEpisodesM) {

						NumEpisodesM = line.match(/(\s*\|\s*num_episodes\s*=\s*(<onlyinclude>)?)(\d+)(.*)/);

						if (NumEpisodesM) NumEpisodes = parseInt(NumEpisodesM3])+1;

					}

					

					// Check if first appearance of RTitle is found

					if (!RTitle) {

						// If line contains RTitle, set to <<RTitle>> if only a ref (will be removed later), else set to contents of RTitle is more than a ref (e.g. raw episode title).

						var RTitleM = line.match(/(\s*\|\s*RTitle\s*=\s*)([^<]*)<ref(.*)/);

						if (RTitleM) {

							if (RTitleM2 === "") line = '<<RTitle>>';

							else line = RTitleM1+RTitleM2];

							RTitle = true;

							RmvRefs = true;

						}

						

						// Catch episode number to add to summary

						var EpisodeNumberM = line.match(/(\s*\|\s*EpisodeNumber\s*=\s*)(.*)/);

						if (EpisodeNumberM) EpisodeNumber = EpisodeNumberM2];

					} else if (!OriginalAirDate) {

						// If RTitle is found but OriginalAirDate not set, find the next occurrence

						// of OriginalAirDate to update Template:Aired_episodes, if it exists

						var OriginalAirDateM = line.match(/(\s*\|\s*OriginalAirDate\s*=\s*)\{\{[s|S]tart date\|([^\}]*)\}\}/);

						if (OriginalAirDateM) OriginalAirDate = OriginalAirDateM2].replace("|df=y","");

					}

					

					// Remove director/writer/etc. references

					if (RmvRefs) line = line.replace(/<ref(.*)\/(ref)?\>/g,"");

					

					// Update line

					wpTextbox1_Vi = line;

				}

				

				EpisodeNumber = (EpisodeNumber?EpisodeNumber:NumEpisodes);

				

				// Save values or get saved values

				if (OriginalAirDate) {

					// If EpisodeNumber/OriginalAirDate was found, saved it from transcluded season page for LoE page update

					localStorage.setItem('EpisodeNumber', EpisodeNumber);

					localStorage.setItem('OriginalAirDate', OriginalAirDate);

				} else if (localStorage.getItem('OriginalAirDate') || localStorage.getItem('EpisodeNumber')) {

					// If EpisodeNumber/OriginalAirDate was not found, obtain it from transcluded season page save for LoE page update

					OriginalAirDate = localStorage.getItem('OriginalAirDate');

					localStorage.removeItem('OriginalAirDate');

					EpisodeNumber = localStorage.getItem('EpisodeNumber');

					localStorage.removeItem('EpisodeNumber');

				}

				

				// Alert of no existance of OriginalAirDate/EpisodeNumber

				var update = true;

				if (!OriginalAirDate && !EpisodeNumber) {

					alert('Be sure to update the individual transcluded season page first, then the List of Episode page, to save the episode number and air date.');

					update = false;

				}

				

				// Update summary

				var summary = document.getElementById('wpSummary');

				if (summary.value.indexOf('Update]]; aired') >= 0) summary.value += " ["+EpisodeNumber+"]";

				else if (update) summary.value += "[[User:Alex 21/script-updateepisodes|Update]]; aired ["+EpisodeNumber+"]";

				

				// Concatenate textbox values again, but without <<RTitle>>

				var wpTextbox1NewValue = '';

				for (i = 0; i < wpTextbox1_V.length; i++) if (wpTextbox1_Vi != '<<RTitle>>') wpTextbox1NewValue += wpTextbox1_Vi+"\n";

				

				// Update |num_episodes=

				if (NumEpisodesM) {

					if (RTitle) wpTextbox1NewValue = wpTextbox1NewValue.replace(NumEpisodesM1+NumEpisodesM3], NumEpisodesM1+NumEpisodes); // Season page

					else wpTextbox1NewValue = wpTextbox1NewValue.replace(NumEpisodesM1+NumEpisodesM3], NumEpisodesM1+EpisodeNumber); // Main page

				}

				// Update Template:Aired_episodes if it exists

				if (OriginalAirDate) wpTextbox1NewValue = wpTextbox1NewValue.replace(/(\{\{Aired episodes\|)((\d*)\|(\d*)\|(\d*))/, "$1"+OriginalAirDate);

				if (EpisodeNumber) wpTextbox1NewValue = wpTextbox1NewValue.replace(/((\{\{Aired episodes\|)(.*)(\|\s*num\s*=))(\d+)/, "$1"+EpisodeNumber);

				wpTextbox1NewValue = wpTextbox1NewValue.replace(/((\{\{Aired episodes\|)(.*)(\|\s*finished\s*=))([\d\.]+)/, "$2$3");

				

				// Reset textbox with new version

				wpTextbox1.value = wpTextbox1NewValue;

			});

		});

	},900);

});