mb_PENDING-EDITS.user.js

// ==UserScript==
// @name         mb. PENDING EDITS
// @version      2024.2.15
// @description  musicbrainz.org: Adds/fixes links to entity (pending) edits (if any); optionally adds links to associated artist(s) (pending) edits
// @namespace    https://github.com/jesus2099/konami-command
// @supportURL   https://github.com/jesus2099/konami-command/labels/mb_PENDING-EDITS
// @downloadURL  https://github.com/jesus2099/konami-command/raw/master/mb_PENDING-EDITS.user.js
// @author       jesus2099
// @licence      CC-BY-NC-SA-4.0; https://creativecommons.org/licenses/by-nc-sa/4.0/
// @licence      GPL-3.0-or-later; http://www.gnu.org/licenses/gpl-3.0.txt
// @since        2009-02-09; https://web.archive.org/web/20140328150654/userscripts.org/scripts/show/42102 / https://web.archive.org/web/20141011084020/userscripts-mirror.org/scripts/show/42102
// @icon         data:image/gif;base64,R0lGODlhEAAQAMIDAAAAAIAAAP8AAP///////////////////yH5BAEKAAQALAAAAAAQABAAAAMuSLrc/jA+QBUFM2iqA2ZAMAiCNpafFZAs64Fr66aqjGbtC4WkHoU+SUVCLBohCQA7
// @require      https://github.com/jesus2099/konami-command/raw/de88f870c0e6c633e02f32695e32c4f50329fc3e/lib/SUPER.js?version=2022.3.24.224
// @grant        none
// @include      /^https?:\/\/(\w+\.)?musicbrainz\.org\/[^/]+\/[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}/
// @run-at       document-end
// ==/UserScript==
"use strict";
// “const” NG in Opera 12 at least
var SCRIPT_KEY = "jesus2099PendingEdits"; // linked in mb_MASS-MERGE-RECORDINGS.user.js
var MBS = self.location.protocol + "//" + self.location.host;
var RE_GUID = "[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}";
var pageEntity, checked = [], xhrPendingEdits = {};
var account = document.querySelector("div.header li.account a[href^='/user/']");
// EDITING HISTORY
if (
	account
	&& (account = decodeURIComponent(account.getAttribute("href").match(/[^/]+$/)))
	&& document.querySelector("div#sidebar")
	&& (pageEntity = document.querySelector("div#content > div > h1 a"))
	&& (pageEntity = a2obj(pageEntity))
	&& (pageEntity.type = self.location.pathname.match(new RegExp("^/([^/]+)/(" + RE_GUID + ")")))
	&& (pageEntity.type = pageEntity.type[1].replace("-", "_"))
) {
	pageEntity.editinghistory = document.querySelector("div#sidebar ul.links a[href$='" + pageEntity.base + "/edits']");
	if (pageEntity.editinghistory) {
		pageEntity.ul = getParent(pageEntity.editinghistory, "ul");
	} else {
		pageEntity.ul = document.querySelector("div#sidebar ul.links");
		pageEntity.editinghistory = createLink("edits"); // reverts MBS-57 (Remove “normal artist” functionality from Various Artists) drawback
	}
	if (!/^collection$/.test(pageEntity.type)) {
		// TODO: Allow collections with missing MBS-3922 feature “Edit search: Filter edits by collections” https://tickets.metabrainz.org/browse/MBS-3922
		appendRefineSearchFormLink(pageEntity.editinghistory);
	}
	pageEntity.li = getParent(pageEntity.editinghistory, "li");
// OPEN EDITS
	pageEntity.openedits = document.querySelector("div#sidebar a[href$='" + pageEntity.base + "/open_edits']");
	if (pageEntity.openedits) {
		// pageEntity.openedits.removeAttribute("title"); // removes bogus tooltip (artist disambiguation or swapped sort name) that is masking our useful tooltip
		if (pageEntity.openedits.parentNode.tagName == "LI") { // fixes MBS-2298 (“Open edits” link should share same styling as pending edit items)
			var pendingEditsMarkedLink = createTag("span", {a: {class: "mp"}});
			pageEntity.openedits.parentNode.replaceChild(pendingEditsMarkedLink.appendChild(pageEntity.openedits.cloneNode(true)).parentNode, pageEntity.openedits);
			pageEntity.openedits = pendingEditsMarkedLink.firstChild; // restore node parental context
		}
	} else {
		pageEntity.openedits = createLink("open_edits"); // fixes MBS-3386 (“Open edits” link not always displayed)
	}
	checked.push(pageEntity.base);
	checkOpenEdits(pageEntity);
// ASSOCIATED ARTIST LINKS
	if (!/^(area|artist|collection|label)$/.test(pageEntity.type)) {
		var artists;
		switch (pageEntity.type) {
			case "release_group":
			case "release":
			case "recording":
				artists = document.querySelectorAll("p.subheader a[href^='/artist/']");
				break;
			case "url":
				artists = document.querySelectorAll("div#content a[href^='/artist/'], div#content a[href^='/label/']");
				break;
			case "work":
				artists = workMainArtists();
				break;
		}
		if (artists && artists.length && artists.length > 0) {
			for (var arti = artists.length - 1; arti >= 0; arti--) {
				var art = a2obj(artists[arti]);
				if (checked.indexOf(art.base) < 0) {
					checked.push(art.base);
					art.editinghistory = createLink("edits", art);
					art.openedits = createLink("open_edits", art);
					getParent(art.openedits, "li").classList.add("separator");
					checkOpenEdits(art);
				}
			}
		}
	}
}
function createLink(historyType, associatedArtist) {
	var currentEntity = associatedArtist || pageEntity;
	var linkLabel = (historyType == "edits" ? "editing\u00a0history" : "open\u00a0edits");
	linkLabel = associatedArtist ? currentEntity.name + " " + linkLabel : linkLabel.replace(/(.)(.*)/, function(match, g1, g2 /* , offset, string */) { return g1.toUpperCase() + g2; });
	var newLink = createTag("li", null, createTag("span", null, createTag("a", {a: {href: currentEntity.base + "/" + historyType}}, linkLabel))); // “span.(""|"mp")” linked in mb_MASS-MERGE-RECORDINGS.user.js
	if (associatedArtist) {
		addAfter(newLink, pageEntity.li);
	} else if (!associatedArtist && historyType == "edits") {
		newLink.classList.add("separator");
		pageEntity.ul.appendChild(newLink);
	} else {
		pageEntity.ul.insertBefore(newLink, pageEntity.li);
	}
	return newLink.firstChild.firstChild;
}
function appendRefineSearchFormLink(baseEditLink) {
	// Use Merge link to find entity row ID
	pageEntity.id = document.querySelector("div#sidebar a[href^='/rating/rate/?entity_type=" + pageEntity.type + "&entity_id='], div#sidebar a[href*='/merge_queue?add-to-merge='], div#sidebar a[href^='/collection/create?']");
	if (pageEntity.id) {
		pageEntity.id = pageEntity.id.getAttribute("href").match(/=(\d+)/);
		if (pageEntity.id) {
			pageEntity.id = pageEntity.id[1];
			addAfter(createTag("span", {}, [" (", createTag("a", {s: {backgroundColor: "#FF6"}, a: {title: "Exclude failed edits\n(this link is added by mb. PENDING EDITS)", href: "/search/edits?order=desc&negation=0&combinator=and&conditions.0.field=" + pageEntity.type + "&conditions.0.operator=%3D&conditions.0.name=" + encodeURIComponent(pageEntity.name) + "&conditions.0.args.0=" + pageEntity.id + "&conditions.1.field=status&conditions.1.operator=%3D&conditions.1.args=1&conditions.1.args=2"}}, "effective"), ")"]), baseEditLink);
		}
	}
}
function checkOpenEdits(obj) {
	var smp = getParent(obj.openedits, "li").firstChild;
	var count = smp.querySelector("span." + SCRIPT_KEY + "Count");
	if (!count) {
		smp.appendChild(document.createTextNode("\u00a0("));
		smp.appendChild(createTag("span", {a: {class: SCRIPT_KEY + "Count"}}, createTag("img", {a: {alt: "⌛ loading…", src: "/static/images/icons/loading.gif", height: self.getComputedStyle(smp).getPropertyValue("font-size")}}))); // “SCRIPT_KEY + "Count"” linked in mb_MASS-MERGE-RECORDINGS.user.js
		smp.appendChild(document.createTextNode(")"));
	}
	xhrPendingEdits[obj.base] = {
		object: obj,
		xhr: new XMLHttpRequest()
	};
	xhrPendingEdits[obj.base].xhr.addEventListener("load", function() {
		var xhrpe;
		for (var entityBasePath in xhrPendingEdits) if (Object.prototype.hasOwnProperty.call(xhrPendingEdits, entityBasePath) && xhrPendingEdits[entityBasePath].xhr == this) {
			xhrpe = xhrPendingEdits[entityBasePath];
			break;
		}
		if (this.status == 200) {
			var responseDOM = document.createElement("html"); responseDOM.innerHTML = this.responseText;
			var editCount = responseDOM.querySelector("div.search-toggle");
			var editDetails = {types: [], editors: [], editCount: 0, paginated: false, atLeast: false};
			if (
				editCount
				&& (editCount = editCount.textContent.match(/\d+/))
				&& (editCount = parseInt(editCount[0], 10))
				&& !isNaN(editCount)
			) {
				var pagination = responseDOM.querySelector("ul.pagination");
				editDetails = {
					types: Array.from(this.responseText.match(/<h2><a href="[^"]+"><bdi>[^<]+<\/bdi><\/a><\/h2>/g), x => x.replace(/^.+ [-–] /, "- ").replace(/<\/bdi>.+$/, "")),
					editors: Array.from(this.responseText.match(/<\/h2><p class="subheader">[\S\s]+?<a href="\/user\/[^/]+">[\S\s]+?<\/p>/g), x => decodeURIComponent(x.replace(/^[\S\s]+\/user\/|">[\S\s]+$/g, ""))),
					editCount: editCount
				};
				if (pagination) {
					var pages = pagination.getElementsByTagName("li");
					if (
						pages[pages.length - 1].querySelector("a[href$='" + xhrpe.object.base + "/open_edits?page=2']")
						&& pages[pages.length - 2].classList.contains("separator")
						&& pages[pages.length - 3].textContent.trim() == "…"
					) {
						editDetails.atLeast = true;
					}
					editDetails.paginated = true;
				}
			}
			if (editDetails.editCount == 0 || editDetails.types.length == editDetails.editors.length) {
				updateLink(xhrpe.object, editDetails);
			} else {
				updateLink(xhrpe.object, "type and editor counts mismatch");
			}
		} else {
			updateLink(xhrpe.object, this.status + ": " + this.statusText);
		}
	});
	xhrPendingEdits[obj.base].xhr.open("get", MBS + obj.openedits.getAttribute("href"), true);
	xhrPendingEdits[obj.base].xhr.setRequestHeader("base", obj.base);
	xhrPendingEdits[obj.base].xhr.send(null);
}
function updateLink(obj, details) {
	var countText;
	var li = getParent(obj.openedits, "li");
	var count = li.querySelector("span." + SCRIPT_KEY + "Count");
	if (typeof details == "object") {
		countText = details.editCount;
		if (details.editCount == 0) {
			mp(obj.openedits, false);
		} else if (details.editCount > 0) {
			mp(obj.openedits, true);
			if (details.atLeast) countText += "+";
			var titarray = [], dupcount = 0, dupreset;
			for (var d = 0; d < details.types.length; d++) {
				var thistit = details.types[d];
				var editor = details.editors[d];
				if (editor != account) {
					thistit += " (" + editor + ")";
				}
				if (thistit != titarray[titarray.length - 1]) {
					titarray.push(thistit);
					if (d > 0) {
						dupreset = true;
					}
				} else {
					dupcount++;
				}
				var last = (d == details.types.length - 1);
				if (dupcount > 0 && (dupreset || last)) {
					titarray[titarray.length - 2 + (!dupreset && last ? 1 : 0)] += " ×" + (dupcount + 1);
					dupcount = 0;
				}
				dupreset = false;
			}
			var expanded = "▼";
			var collapsed = "◀";
			var expandEditLists = (localStorage.getItem(SCRIPT_KEY + "PendingEditLists") != collapsed);
			var ul = createTag("ul", {a: {class: SCRIPT_KEY + "EditList"}, s: {display: expandEditLists ? "block" : "none", opacity: ".8"}});
			for (var e = 0; e < titarray.length; e++) {
				var edit1type2editor3count = titarray[e].match(/^(?:- )?([^(]+)(?: \(([^)]+)\))?(?: ×(\d+))?$/);
				var editLi = ul.appendChild(createTag("li", {}, createTag("span", {a: {class: "mp"}}, edit1type2editor3count[1] + (edit1type2editor3count[3] ? " ×" + edit1type2editor3count[3] : ""))));
				if (edit1type2editor3count[2]) {
					editLi.appendChild(document.createTextNode(" by "));
					editLi.appendChild(createTag("a", {a: {href: "/user/" + escape(edit1type2editor3count[2])}}, edit1type2editor3count[2]));
				} else {
					editLi.style.setProperty("font-weight", "bold");
				}
			}
			if (details.paginated) {
				ul.appendChild(createTag("li", {}, ["And ", createTag("span", {a: {class: "mp"}}, createTag("a", {a: {href: obj.openedits.getAttribute("href") + "?page=2"}}, (details.editCount - details.types.length) + " older edit" + (details.editCount == (details.types.length + 1) ? "" : "s"))), "…"]));
			}
			var help = createTag("span", {a: {class: SCRIPT_KEY + "Help"}, s: {display: expandEditLists ? "inline" : "none"}});
			if (titarray.length > 1) {
				help.appendChild(document.createElement("br"));
				help.appendChild(document.createTextNode(" newest edit on top"));
			}
			li.appendChild(help);
			li.appendChild(ul);
			li.insertBefore(createTag("a", {a: {class: SCRIPT_KEY + "Toggle"}, s: {position: "absolute", right: "4px"}, e: {click: function(event) {
				var collapse = (this.textContent == expanded);
				for (var options = document.querySelectorAll("ul." + SCRIPT_KEY + "EditList, span." + SCRIPT_KEY + "Help"), o = 0; o < options.length; o++) {
					options[o].style.setProperty("display", collapse ? "none" : (options[o].tagName == "UL" ? "block" : "inline"));
				}
				for (var toggles = document.querySelectorAll("a." + SCRIPT_KEY + "Toggle"), t = 0; t < toggles.length; t++) {
					replaceChildren(document.createTextNode(collapse ? collapsed : expanded), toggles[t]);
				}
				localStorage.setItem(SCRIPT_KEY + "PendingEditLists", collapse ? collapsed : expanded);
			}}}, expandEditLists ? expanded : collapsed), li.firstChild);
		}
	} else {
		count.style.setProperty("background-color", "pink"); // “pink” linked in mb_MASS-MERGE-RECORDINGS.user.js
		countText = details;
	}
	count.replaceChild(document.createTextNode(countText), count.firstChild); // “countText” linked in mb_MASS-MERGE-RECORDINGS.user.js
}
function mp(o, set) {
	var li = getParent(o, "li");
	if (typeof set == "undefined") {
		return li.firstChild.tagName == "SPAN" && li.firstChild.classList.contains("mp");
	} else if (typeof set == "boolean" && li.firstChild.tagName == "SPAN") {
		if (set && !mp(o)) {
			li.firstChild.className = "mp";
		} else if (!set) {
			if (mp(o)) {
				li.firstChild.classList.remove("mp");
			}
			o.style.setProperty("text-decoration", "line-through"); // linked in mb_MASS-MERGE-RECORDINGS.user.js
			li.style.setProperty("opacity", ".5"); // linked in mb_MASS-MERGE-RECORDINGS.user.js
		}
	}
}
function a2obj(a) {
	return {
		a: a,
		name: a.textContent,
		base: a.getAttribute("href").match(new RegExp("(/[^/]+/" + RE_GUID + ")$"))[1]
	};
}
function workMainArtists() {
	var writers = document.querySelectorAll("div#content > table.details > tbody td a[href^='/artist/']");
	var groupedWriters = {};
	for (let w = 0; w < writers.length; w++) {
		let href = writers[w].getAttribute("href");
		if (!groupedWriters[href]) {
			groupedWriters[href] = [];
		}
		groupedWriters[href].push(writers[w]);
	}
	var performers = document.querySelectorAll("div#content > table.tbl > tbody td a[href^='/artist/']");
	var groupedPerformers = {};
	for (let p = 0; p < performers.length; p++) {
		let href = performers[p].getAttribute("href");
		if (!groupedPerformers[href]) {
			groupedPerformers[href] = [];
		}
		groupedPerformers[href].push(performers[p]);
	}
	var mainArtists = [];
	var max = 0;
	// find most frequent performer(s)
	for (let href in groupedPerformers) if (Object.prototype.hasOwnProperty.call(groupedPerformers, href)) {
		if (groupedPerformers[href].length > max) {
			max = groupedPerformers[href].length;
			mainArtists = [groupedPerformers[href][0]];
		} else if (groupedPerformers[href].length == max) {
			// take first ex‐æquo artist(s) too
			mainArtists.push(groupedPerformers[href][0]);
		}
	}
	// take all singer/song‐writers; take all writers if no performers
	for (let href in groupedWriters) if (Object.prototype.hasOwnProperty.call(groupedWriters, href) && (groupedPerformers[href] || performers.length < 1)) {
		mainArtists.push(groupedWriters[href][0]);
	}
	// get artist main names whenever possible
	for (let f = 0; f < mainArtists.length; f++) {
		let noNameVariationArtist = document.querySelector(":not(.name-variation) > a[href='" + mainArtists[f].getAttribute("href") + "']");
		mainArtists[f] = noNameVariationArtist || mainArtists[f];
	}
	return mainArtists;
}