User:Alex 21/script-updateepisodes.js

Note: After saving, you have to bypass your browser's cache to see the changes. Google Chrome, Firefox, Microsoft Edge and Safari: Hold down the ⇧ Shift key and click the Reload toolbar button. For details and instructions about other browsers, see Wikipedia:Bypass your cache.

$(function($) {
	var portletlink = mw.util.addPortletLink('p-tb', '#', 'Remove redlinks');
	$(portletlink).click( function(e) {
		e.preventDefault();
		// Textbox contents
		var wpTextbox1 = document.getElementById('wpTextbox1');
		var s = wpTextbox1.value.split("\n");
		
		// Declare variables
		var NumEpisodes = false; var RTitle = false;
		var OriginalAirDate = false; var EpisodeNumber = false;
		
		// Go though contents one line at a time
		for (var i = 0; i < s.length; i++) {	
			// Update num_episodes in {{Infobox television}}, if it exists
			var NumEpisodesM = s[i].match(/(\s*\|\s*num_episodes\s*=\s*(<onlyinclude>)?)(\d*)(.*)/);
			if (NumEpisodesM) {
				NumEpisodes = parseInt(NumEpisodesM[3])+1;
				s[i] = s[i].replace(NumEpisodesM[1]+NumEpisodesM[3], NumEpisodesM[1]+NumEpisodes);
			}
			
			// Check if first appearance of RTitle is found
			if (!RTitle) {
				// If line contains RTitle, set to <<RTitle>> (will be remove later).
				var RTitleM = s[i].match(/(\s*\|\s*RTitle\s*=\s*)(.*)/);
				if (RTitleM) {
					s[i] = '<<RTitle>>';
					RTitle = true;
				}
				
				// Catch episode number to add to summary
				var EpisodeNumberM = s[i].match(/(\s*\|\s*EpisodeNumber\s*=\s*)(.*)/);
				if (EpisodeNumberM) EpisodeNumber = EpisodeNumberM[2];
			} else if (!OriginalAirDate) {
				// If RTitle is found but OriginalAirDate not set, find the next occurrence of OriginalAirDate to update {{Aired episodes}}, if it exists
				var OriginalAirDateM = s[i].match(/(\s*\|\s*OriginalAirDate\s*=\s*)\{\{[s|S]tart date\|([^\}]*)\}\}/);
				if (OriginalAirDateM) OriginalAirDate = OriginalAirDateM[2];
			}
		}
		
		// Update summary
		document.getElementById('wpSummary').value += "Update; aired ["+(EpisodeNumber?EpisodeNumber:NumEpisodes)+"]";
		
		// Concatenate textbox values again, but without <<RTitle>>
		var wpTextbox1NewValue = '';
		for (i = 0; i < s.length; i++) if (s[i] != '<<RTitle>>') wpTextbox1NewValue += s[i]+"\n";
		
		// Update {{Aired episodes}}, if it exists
		wpTextbox1NewValue = wpTextbox1NewValue.replace(/(\{\{Aired episodes\|)((\d*)\|(\d*)\|(\d*))/, "$1"+OriginalAirDate);
		// Reset textbox with new version
		wpTextbox1.value = wpTextbox1NewValue;

	});
});