User:Alex 21/script-plotlength.js

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$(function($) {
	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 ? "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);
	});
});