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User:MusikAnimal/customWatchlists-sandbox.js

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(function() {
	$("head").append(importStylesheet("User:MusikAnimal/customWatchlists.css"));
	
	var addCwLinkListener = function() {
		$(".cw-add").click(function() {
			if($("#cw-overlay")[0]) return false;
			var pageName = new mw.Title($(this).siblings(".mw-title").text());
			pageName = pageName.getNamespacePrefix()+pageName.getMain();
			getCustomWatchlists().then(setupCactionInterface.bind(this, pageName),setupCactionInterface.bind(this, null));
		});
	};
	
	var getCustomWatchlists = function() {
		return Promise.resolve($.get("/wiki/User:"+wgUserName+"/watchlists?action=raw"));
	};
	
	var formatDate = function(dateObj) {
		// TODO: replace monthNames with wgMonthNames
		var monthNames = [ "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" ];
		return (dateObj.getHours()+100).toString().slice(-2)+":"+(dateObj.getMinutes()+100).toString().slice(-2)+", "+(dateObj.getUTCDate()+100).toString().slice(-2)+" "+monthNames[dateObj.getUTCMonth()]+" "+dateObj.getUTCFullYear();
	};
	
	var generateListItem = function(data) {
		var mwName = new mw.Title(data.title);
		var pageUrl = "/w/index.php?title="+mwName.getNamespacePrefix()+mwName.getMain().replace(/'/g, "%27"),
			editDate = new Date(data.timestamp);
		if(data.newlen) {
			var lengthDiff = data.newlen - data.oldlen;
			var diffClass = lengthDiff >= 0 ? "mw-plusminus-pos" : "mw-plusminus-neg";
		}
		return "<li class='mw-line-even mw-changeslist-line-not-watched'>" +
			"("+
				"<a href='"+pageUrl+"&diff=prev&oldid="+data.revid+"' class='nonimage'>diff</a>&nbsp;| " +
				"<a href='"+pageUrl+"&action=history' class='nonimage'>hist</a>&nbsp;| " +
				"<a href='javascript:' class='cw-add'>cw</a>" +
			")&nbsp;" +
			"<span class='mw-changeslist-separator'>. .</span>&nbsp;" +
			"<span class='mw-changeslist-date'>"+formatDate(editDate)+"</span>&nbsp;" +
			"<span class='mw-title'><a href='/wiki/"+encodeURI(data.title).replace(/'/g, "%27")+"' class='mw-changeslist-title nonimage'>"+data.title+"</a></span>&nbsp;" +
			(data.newlen ? "<span class='mw-changeslist-separator'>. .</span>&nbsp;<span dir='ltr' class='"+diffClass+"'>("+(lengthDiff > 0 ? "+" : "")+lengthDiff+")</span> " : "") +
			"<span class='mw-changeslist-separator'>. .</span>&nbsp;" +
			"<a href='/wiki/User:"+data.user+"' class='mw-userlink nonimage'>"+data.user+"</a> " +
			"(<a href='/wiki/User talk:"+data.user+"'>talk</a> | <a href='/wiki/Special:Contributions/"+data.user+"'>contribs</a>)" +
			(data.parsedcomment ? "&nbsp;<span style='font-style:italic'>(" + data.parsedcomment + ")</span>" : "") +
		"</li>";
	};
	
	var showCustomWatchlist = function(type,lists,target,limit,allrev) {
		var apiRoot = "/w/api.php?action=query";
		var pages = JSON.parse(JSON.stringify(lists[target]));
		var pagesLength = pages.length;
		for(var i=0; i<pagesLength; i++) {
			var mwPageName = new mw.Title(pages[i]);
			if(mwPageName.namespace % 2 === 0) {
				pages.push(mwPageName.getNamespacePrefix().slice(0,-1) + (mwPageName.namespace === 0 ? "Talk:" : "_talk:") + mwPageName.getMain());
			}
		}
		$(".mw-changeslist").html("Loading...");
		
		var newHtml = "";
		if(type === "rc") {
			$.get(apiRoot+"&list=watchlist&wlprop=user|parsedcomment|timestamp|sizes|title|ids&wltype=edit&wllimit="+limit+(allrev === true ? "&wlallrev=true" : "")+"&format=json", function(data) {
				var matches = $.grep(data.query.watchlist, function(el){
					var mwName = new mw.Title(el.title);
					return pages.indexOf(mwName.getNamespacePrefix()+mwName.getMain()) >= 0;
				});
				for(var i=0; i<matches.length; i++) {
					newHtml += generateListItem(matches[i]);
				}
				$(".mw-changeslist").html(newHtml);
				addCwLinkListener();
				mw.hook( 'wikipage.content' ).fire($('.mw-changeslist'));
			});
		} else {
			var queryablePages = $.map(pages,function(p,i){return encodeURIComponent(p).replace(/'/g, "%27")}).join("|");
			$.get(apiRoot+"&prop=revisions&rvprop=ids|timestamp|user|parsedcomment&titles="+queryablePages+"&format=json", function(data) {
				var sortedData = [];
				for(var pageId in data.query.pages) {
					if(parseInt(pageId) > 0) {
						var pageData = data.query.pages[pageId];
						sortedData.push({
							parsedcomment : pageData.revisions[0].parsedcomment,
							revid: pageData.revisions[0].revid,
							timestamp: pageData.revisions[0].timestamp,
							title: pageData.title,
							user: pageData.revisions[0].user
						});
					}
				}
				$.each(sortedData.sort(function(x,y) {
					if($("#cw-rw-options input:checked").val() === "timestamp") {
						return new Date(y.timestamp).getTime() - new Date(x.timestamp).getTime();
					} else {
						return x.title.localeCompare(y.title);
					}
				}), function(i,v) {
					newHtml += generateListItem(v);
				});
				$(".mw-changeslist").html(newHtml);
				addCwLinkListener();
				mw.hook( 'wikipage.content' ).fire($('.mw-changeslist'));
			});
		}
	};
	
	var showCustomWatchlistsForm = function(appendHtml) {
		var html = "<form id='custom_watchlist_form'><fieldset>" +
				"<legend>Custom watchlists (<a href='//en.wikipedia.org/w/index.php?title=User:MusikAnimal/customWatchlists'>documentation</a>)</legend>" + appendHtml;
		$("#mw-watchlist-form").after(html);
	};
	
	var setupCactionInterface = function(data, argName) {
		if(argName) {
			pageName = data;
			data = argName;
		} else {
			pageName = wgPageName;
		}
		var customWatchlists = data ? JSON.parse(data.split("\n")[0]) : {};
		var customWatchlistNames = Object.keys(customWatchlists),
			inWatchlists = [];
		
		for(var wl in customWatchlists) {
			
			if(customWatchlists[wl].indexOf(pageName.replace("_talk:",":").replace("Talk:","")) !== -1) {
				inWatchlists.push(wl);
			}
		}
		
		var html = "<div id='cw-overlay'>" +
			"<div class='header'>" +
				"Add/remove page to custom watchlists" +
				"<span class='closer-x' onclick=\"$('#cw-overlay').remove();\"></span>" +
			"</div>" +
			"<div id='cw-overlay-body'>" +
				(argName ? "<p style='margin-top:0'>Page name: <i>"+pageName.replace(/_/g, " ")+"</i></p>" : "");
		
		for(var i=0; i < customWatchlistNames.length; i++) {
			var listName = customWatchlistNames[i];
			html += "<span><input class='cw-option' type='checkbox' value='"+i+"' "+(inWatchlists.indexOf(listName) !== -1 ? "checked data-index='"+customWatchlists[listName].indexOf(pageName)+"'" : "")+" id='cw-option-"+i+"' /><label for='cw-option-"+i+"'>"+listName+"</label> (<a class='cw-delete' href='javascript:' data-id='"+i+"'>del</a>)</span>";
		}
		
		html += "<div id='cw-overlay-new-watchlist'>" +
				"<input class='cw-option' type='checkbox' value='-1' id='cw-new-option' "+(data ? "" : "checked")+" /><label for='cw-new-option'>New watchlist</label>" +
				"<input type='text' id='cw-overlay-new-watchlist-input' placeholder='Enter watchlist name' "+(data ? "" : "style='display:inline-block'")+" />" +
			"</div><button id='cw-overlay-selector-submit'>Save changes</button></div></div>";
		
		$("body").append(html);
		
		if(!data) $("#cw-overlay-new-watchlist-input").focus();
		
		$("#cw-new-option").change(function() {
			if($(this).is(":checked")) {
				$("#cw-overlay-new-watchlist-input").show().focus();
			} else {
				$("#cw-overlay-new-watchlist-input").hide();
			}
		});
		
		$(".cw-delete").click(function() {
			if($(this).text() === "undel") {
				$("#cw-option-"+$(this).data('id')).prop('checked',false).siblings("label").removeClass("disabled");
				$("#cw-option-"+$(this).data('id')).data('delete',null);
				$(this).text("del");
			} else {
				var name = customWatchlistNames[$(this).data('id')];
				var cwToDelete = customWatchlists[name];
				if(confirm("Mark the watchlist \""+name+"\" and all it's "+cwToDelete.length+" entries for deletion?")) {
					$(this).text("undel");
					$("#cw-option-"+$(this).data('id')).data('delete',true);
					$("#cw-option-"+$(this).data('id')).prop('checked',true).one("click", function() {
						$(this).siblings("a").trigger("click");
					}).siblings("label").addClass("disabled");
				}
			}
		});
		
		$("#cw-overlay-selector-submit").click({
			customWatchlistNames: customWatchlistNames,
			customWatchlists: customWatchlists,
			inWatchlists: inWatchlists,
			pageName : pageName
		}, function(e) {
			$("#cw-overlay-selector-submit").replaceWith("Saving...");
			var cw = e.data.customWatchlists,
				iw = e.data.inWatchlists,
				pageName = e.data.pageName.replace("_talk:",":").replace("Talk:",":"),
				toWatch = false,
				updateStr = "";

			$.each($(".cw-option"), function(i) {
				var id = parseInt($(this).val());
				var key = id < 0 ? $("#cw-overlay-new-watchlist-input").val().replace(/[^\w\s]/gi, '') : customWatchlistNames[id];
				var exists = iw.indexOf(key) >= 0;
				
				if($(this).is(":checked")) {
					if($(this).data("delete")) {
						updateStr = "Deleted the custom watchlist <b>"+key+"</b>.";
						delete cw[key];
					} else {
						toWatch = true;
						if(id < 0) {
							updateStr = "Created the custom watchlist <b>"+key+"</b> with <b>"+pageName+"</b>";
							cw[key] = [pageName];
						} else {
							updateStr = "Added <b>"+pageName+"</b> to the custom watchlist <b>"+key+"</b>";
							cw[key].push(pageName);
						}
					}
				} else if(exists) {
					updateStr = "Removed <b>"+pageName+"</b> from the custom watchlist <b>"+key+"</b>";
					cw[key].splice($(this).data('index'),1);
				}
			});
			
			var stringifiedCw = JSON.stringify(cw)+"\nBacklink: [[User:MusikAnimal/customWatchlists]]";

			var api = new mw.Api();
			api.watch(pageName).done(function(watchResult) {
				api.postWithToken( "edit", {
					action: "edit",
					title: "User:"+wgUserName+"/watchlists",
					summary: "updating [[User:MusikAnimal/customWatchlists|custom watchlists]]",
					text: stringifiedCw
				}).done(function(result, jqXHR) {
					$("#cw-overlay-body").html("Success!");
					mw.notify($("<div>"+updateStr+"</div"));
					setTimeout(function() {
						$("#cw-overlay").remove();
					},3000);
				}).fail(function(code, result) {
					if ( code === "http" ) {
						mw.log( "HTTP error: " + result.textStatus ); // result.xhr contains the jqXHR object
					} else if ( code === "ok-but-empty" ) {
						mw.log( "Got an empty response from the server" );
					} else {
						mw.log( "API error: " + code );
					}
				});
			}).fail(function(code, result) {
				if ( code === "http" ) {
					mw.log( "HTTP error: " + result.textStatus ); // result.xhr contains the jqXHR object
				} else if ( code === "ok-but-empty" ) {
					mw.log( "Got an empty response from the server" );
				} else {
					mw.log( "API error: " + code );
				}
			});
		});
	};
	
	if(wgRelevantPageName === "Special:Watchlist") {
		getCustomWatchlists().then(function(data) {
			var customWatchlists = JSON.parse(data.split("\n")[0]);
			var customWatchlistNames = Object.keys(customWatchlists);
			var html = "<p><label for='custom_watchlist_selector'>Custom list:</label>&nbsp;<select id='custom_watchlist_selector'>";

			for(var i=0; i < customWatchlistNames.length; i++) {
				var listName = customWatchlistNames[i];
				html += "<option value='"+i+"'>"+listName+"</option>";
			}
			
			html += "</select></p>"+
				"<p id='cw-list-type'>Show:&nbsp;<label><input type='radio' name='cw-display-type' value='rc' checked /> Recent changes</label>&nbsp;<label><input type='radio' name='cw-display-type' value='rw' /> Raw watchlist</label></p>" +
				"<p id='cw-rw-options' style='display:none'>Sorting:&nbsp;<label><input type='radio' name='cw-rw-sorting' value='timestamp' checked /> Last edited</label>&nbsp;<label><input type='radio' name='cw-rw-sorting' value='title' />Alphabetical</label></p>" +
				"<p id='cw-rc-options'><label for='custom_watchlist_limit'>Search limit (from base watchlist):</label>&nbsp;<select id='custom_watchlist_limit'>";
			var limitArr = [50,100,250,500,1000,2500,5000];
			for(var j=0; j<limitArr.length; j++) {	
				html += "<option val='"+limitArr[j]+"'>"+limitArr[j]+"</option>";
			}

			html += "</select><br/>" +
				"<input type='checkbox' id='custom_watchlist_all_rev' value='wlallrev' /><label for='custom_watchlist_all_rev'>Include multiple revisions to same page</label></p>" +
				"<p><button id='custom_watchlist_submit'>Go</button></fieldset></p></form>";

			showCustomWatchlistsForm(html);
			
			$("#custom_watchlist_submit").click(function(e) {
				e.preventDefault();
				showCustomWatchlist($("#cw-list-type input[type=radio]:checked").val(),customWatchlists,customWatchlistNames[parseInt($("#custom_watchlist_selector").val())],$("#custom_watchlist_limit").val(),$("#custom_watchlist_all_rev").is(":checked"));
			});
			$("#custom_watchlist_form input[type=radio]").click(function() {
				if($(this).val() === "rc") {
					$("#cw-rc-options").show();
					$("#cw-rw-options").hide();
				} else {
					$("#cw-rc-options").hide();
					$("#cw-rw-options").show();
				}
			});
		}, function() {
			showCustomWatchlistsForm("<p>No <a href='https://en.wikipedia.org/wiki/User:MusikAnimal/customWatchlists'>custom watchlists</a> yet! Go to a <a href='/wiki/Special:Random'>page</a> and create a custom watchlist by selecting the \"Custom Watchlists&hellip;\" item from the More menu.</p>");
		});
		$(".mw-changeslist .special li").each(function() {
			$anchor = $(this).find("a").eq(1);
			if($anchor.text() === "hist" && !$anchor.siblings(".wikibase-edit").length) {
				$anchor.after("&nbsp;| <a class='cw-add' href='javascript:'>cw</a>");
			}
		});
		addCwLinkListener();
	} else if(wgNamespaceNumber >= 0) {
		mw.util.addPortletLink(
			'p-cactions',
			'javascript:',
			'Custom watchlist…',
			'ca-add-to-cw'
		);
		$("#ca-add-to-cw").click(function() {
			if($("#cw-overlay")[0]) return false;
			getCustomWatchlists().then(setupCactionInterface,setupCactionInterface.bind(this, null, null));
		});
	}
}());