User:Alex 21/script-plotlength.js

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$(function($) {
	setTimeout(function() {
		var portletlink = mw.util.addPortletLink('p-tv', '#', 'Plot lengths');
		$(portletlink).click( function(e) {
			e.preventDefault();
			
			// Type of infobox; if none exist, assume a list-of-episodes page
			var infoboxtype;
			var infobox = document.getElementsByClassName('infobox')[0];
			if (infobox === undefined) {
				infoboxtype = "TV";
			} else {
				while (infobox.tagName != "TH") infobox = infobox.children[0];
				infoboxtype = ((infobox.style.background || infobox.style.backgroundColor) ? "TV" : "FILM");
			}
			
			// Default parameters
			var plotlength = '<span class="plotlength"></span>';
			var dlength; var summary = ''; var i; var d = new Date(); var plotString;
			var firstSummary = document.getElementsByClassName('summary')[0];
			var inPlot = false; var firstElem;
			var alertText = '';
			
			// Possible headers for prose plot sections (e.g. films, season summaries) - please inform if any are missing
			var IDs = ["Plot", "Premise", "Synopsis", "Summary", "Plot summary", "Overview"];
			
			// Go through and check for the possible headers above
			for (var id = 0; id < IDs.length; id++) {
				var summaryElem = document.getElementById(IDs[id]);
				if (summaryElem === null) continue;
				// Header exists
				var nodes = summaryElem.parentNode.parentNode.children;
				for (i = 0; i < nodes.length; i++) {
					// Check if we are in the plot section via header first
					if (nodes[i] == summaryElem.parentNode) {
						inPlot = true;
					} else if (inPlot === true) {
						// In the plot section via header, now collect the whole plot
						if (nodes[i].tagName == 'H2') {
							inPlot = false;
						} else {
							summary += nodes[i].innerHTML+' ';
							if (firstElem === undefined & nodes[i].tagName == "P") firstElem = nodes[i];
						}
					}
				}
				// Remove any previous counts, tags, references
				if (summary.lastIndexOf(plotlength) > 0) summary = summary.substr(summary.lastIndexOf(plotlength)+plotlength.length);
				summary = summary.replace(/(\r\n|\n|\r)/gm,"").replace(/<table(.*)\/table\>/g,'');
				summary = summary.replace(/<\/?([^>]*)>/g,'').trim();
				dlength = summary.split(' ').length+1;
				
				if ((infoboxtype == "FILM" && dlength > 700) || (infoboxtype == "TV" && dlength > 500)) {
					// Length is greater than the limit: too long, tag
					firstElem.innerHTML = "<span style='color:red'><b>("+dlength+")</b></span> "+plotlength+firstElem.innerHTML;
					plotString = "{{Plot|"+(infoboxtype == "FILM" ? "film" : "episode")+"|date="+d.getMonthName()+" "+d.getFullYear()+"}}";
					copyContent(plotString);
					alertText += 'The main plot summary is too long per WP:'+infoboxtype+'PLOT.\nCopied to clipboard: '+plotString+'\n';
				} else {
					// Sufficiently short
					firstElem.innerHTML = "("+dlength+") "+plotlength+firstElem.innerHTML;
					alertText += 'The main plot summary is sufficiently short per WP:'+infoboxtype+'PLOT.\n';
				}
				// Calculates the length of only one plot summary (only one required), so break.
				break;
			}
			
			// Length of episode summaries, if they exist
			var episodes = '';
			var desc = document.getElementsByClassName('description');
			var trs = document.getElementsByTagName("tr");
			var tenperc = 0;
			for (i = 0; i < desc.length; i++) {
				// Remove any previous counts, tags, references, horizontal breaks, new lines
				summary = desc[i].innerHTML.replace(/(\r\n|\n|\r)/gm,"").replace(/<table(.*)\/table\>/g,'');
				if (summary.lastIndexOf(plotlength) > 0) summary = summary.substr(summary.lastIndexOf(plotlength)+plotlength.length);
				if (summary.indexOf('<hr') >= 0) summary = summary.substr(0,summary.indexOf('<hr'));
				summary = summary.replace(/<\/?([^>]*)>/g,'');
				dlength = summary.split(' ').length+1;
				
				if (dlength > 200) {
					// Length is greater than 200: possible too long
					for (var j = 0; j < trs.length; j++) {
						if (desc[i] == trs[j].children[0]) {
							// Double episode, summaries below 400 are acceptable
							var doubleep = (trs[j-1].cells[0].innerHTML.match(/(\d*)/g).filter(Number).length > 1);
							if (doubleep && dlength <= 400) {
								desc[i].innerHTML = "("+dlength+") "+plotlength+desc[i].innerHTML;
							} else if ((!doubleep && dlength <= 215) || (doubleep && dlength <= 415)) {
								// Allow up to 15 more than maximum for leeway
								desc[i].innerHTML = "<span style='color:green'>("+dlength+")</span> "+plotlength+desc[i].innerHTML;
								tenperc++;
							} else if ((!doubleep && dlength > 215) || (doubleep && dlength > 415)) {
								// Too long, tag
								episodes += trs[j-1].cells[0].innerHTML.replace(/\n/g,'')+" ("+dlength+")\n";
								desc[i].innerHTML = "<span style='color:red'><b>("+dlength+")</b></span> "+plotlength+desc[i].innerHTML;
							}
						}
					}
				} else {
					// Sufficiently short
					desc[i].innerHTML = "("+dlength+") "+plotlength+desc[i].innerHTML;
				}
			}
			
			// Inform of summaries that are over the limit, if any exist
			if (desc.length > 0) {
				var tenpercS = (tenperc?'('+tenperc+' summar'+(tenperc==1?'y is':'ies are')+' only a few words over the limit)\n':'');
				if (episodes) {
					// Copy too-long tag
					plotString = "{{Plot|episode|date="+d.getMonthName()+" "+d.getFullYear()+"}}";
					copyContent(plotString);
					alertText += "Episode summaries exist that are too long per WP:TVPLOT:\n"+episodes+tenpercS+'Copied to clipboard: '+plotString+'\n';
				} else {
					// All short enough
					alertText += 'All episode summaries are sufficiently short per WP:TVPLOT.\n'+tenpercS+'\n';
				}
			}
			
			// Complile all under one alert
			alert(alertText);
		});
	},400);
});