☰

Extract artists from description for Gazelle

Tries to extract artists from selected text or tracklist in group description

目前為 2021-06-30 提交的版本，檢視 最新版本。

// ==UserScript==
// @name         Extract artists from description for Gazelle
// @namespace    https://gf.qytechs.cn/cs/users/321857-anakunda
// @version      1.42.1
// @description  Tries to extract artists from selected text or tracklist in group description
// @author       Anakunda
// @copyright    2020, Anakunda (https://gf.qytechs.cn/cs/users/321857-anakunda)
// @license      GPL-3.0-or-later
// @match        https://redacted.ch/torrents.php?id=*
// @match        https://redacted.ch/torrents.php?*&id=*
// @match        https://orpheus.network/torrents.php?id=*
// @match        https://orpheus.network/torrents.php?*&id=*
// @match        https://notwhat.cd/torrents.php?id=*
// @match        https://notwhat.cd/torrents.php?*&id=*
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_deleteValue
// ==/UserScript==

const vaParser = /^(?:Various(?:\s+Artists)?|Varios(?:\s+Artistas)?|V\/?A|\<various\s+artists\>|Různí(?:\s+interpreti)?)$/i;
const multiArtistParsers = [
	/\s*[\,\;\u3001](?!\s*(?:[JjSs]r)\b)(?:\s*(?:[Aa]nd|\&)\s+)?\s*/,
	/\s+(?:[\/\|\×]|meets)\s+/i,
];
const ampersandParsers = [
	/\s+(?:meets|vs\.?|X)\s+(?!\s*(?:[\&\/\+\,\;]|and))/i,
	/\s*[;\/\|\×]\s*(?!\s*(?:\s*[\&\/\+\,\;]|and))/i,
	/(?:\s*,)?\s+(?:[\&\+]|and)\s+(?!his\b|her\b|Friends$|Strings$)/i, // /\s+(?:[\&\+]|and)\s+(?!(?:The|his|her|Friends)\b)/i,
	/\s*\+\s*(?!(?:his\b|her\b|Friends$|Strings$))/i,
];
const featArtistParsers = [
	///\s+(?:meets)\s+(.+?)\s*$/i,
	/* 0 */ /\s+(?:[Ww](?:ith|\.?\/)|[Aa]vec)\s+(?!his\b|her\b|Friends$|Strings$)(.+?)\s*$/,
	/* 1 */ /(?:\s+[\-\−\—\–\_])?\s+(?:[Ff]eaturing\s+|(?:[Ff]eat|[Ff]t|FT)\.\s*|[Ff]\.?\/\s+)([^\(\)\[\]\{\}]+?)(?=\s*(?:[\(\[\{].*)?$)/,
	/* 2 */ /\s+\[\s*f(?:eat(?:\.|uring)|t\.|\.?\/)\s+([^\[\]]+?)\s*\]/i,
	/* 3 */ /\s+\(\s*f(?:eat(?:\.|uring)|t\.|\.?\/)\s+([^\(\)]+?)\s*\)/i,
	/* 4 */ /\s+\[\s*(?:(?:en\s+)?duo\s+)?avec\s+([^\[\]]+?)\s*\]/i,
	/* 5 */ /\s+\(\s*(?:(?:en\s+)?duo\s+)?avec\s+([^\(\)]+?)\s*\)/i,
	/* 6 */ /\s+\[\s*(?:with|[Ww]\.?\/)\s+(?![Hh]is\b|[Hh]er\b|Friends$|Strings$)([^\[\]]+?)\s*\]/,
	/* 7 */ /\s+\(\s*(?:with|[Ww]\.?\/)\s+(?![Hh]is\b|[Hh]er\b|Friends$|Strings$)([^\(\)]+?)\s*\)/,
];
const remixParsers = [
	/\s+\((?:The\s+)?Remix(?:e[sd])?\)/i,
	/\s+\[(?:The\s+)?Remix(?:e[sd])?\]/i,
	/\s+(?:The\s+)?Remix(?:e[sd])?\s*$/i,
	/^(?:The\s+)?(?:Remixes)\b|\b(?:The\s+)?(?:Remixes)$/,
	/\s+\(([^\(\)]+?)[\'\’\`]s[^\(\)]*\s(?:(?:Re)?Mix|Reworx)\)/i,
	/\s+\[([^\[\]]+?)[\'\’\`]s[^\[\]]*\s(?:(?:Re)?Mix|Reworx)\]/i,
	/\s+\(([^\(\)]+?)\s+(?:(?:Extended|Enhanced)\s+)?(?:Remix|Reworx)\)/i,
	/\s+\[([^\[\]]+?)\s+(?:(?:Extended|Enhanced)\s+)?(?:Remix|Reworx)\]/i,
	/\s+\(Remix(?:ed)?\s+by\s+([^\(\)]+)\)/i,
	/\s+\[Remix(?:ed)?\s+by\s+([^\[\]]+)\]/i,
];
const arrParsers = [
	/\s+\(arr(?:anged\s+by|\.)\s+([^\(\)]+?)\s*\)/i,
	/\s+\[arr(?:anged\s+by|\.)\s+([^\[\]]+?)\s*\]/i,
];
const prodParsers = [
	/\s+\(prod(?:uced(?:\s+by)?|\.\s+by)\s+([^\(\)]+?)\s*\)/i,
	/\s+\[prod(?:uced(?:\s+by)?|\.\s+by)\s+([^\[\]]+?)\s*\]/i,
];
const otherArtistsParsers = [
	[/^(.*?)\s+(?:under|(?:conducted)\s+by)\s+(.*)$/, 4],
	[/^()(.*?)\s+\(conductor\)$/i, 4],
	//[/^()(.*?)\s+\(.*\)$/i, 1],
];
const pseudoArtistParsers = [
	/* 0 */ vaParser,
	/* 1 */ /^(?:#??N[\/\-]?A|[JS]r\.?|Unknown(?:\s+Artist)?)$/i,
	/* 2 */ /^(?:auditorium|[Oo]becenstvo|[Pp]ublikum)$/,
	/* 3 */ /^(?:(Special\s+)??Guests?|Friends|(?:Studio\s+)?Orchestra)$/i,
	/* 4 */ /^(?:Various\s+Composers)$/i,
	/* 5 */ /^(?:[Aa]nonym)/,
	/* 6 */ /^(?:traditional|trad\.|lidová)$/i,
	/* 7 */ /\b(?:traditional|trad\.|lidová)$/,
	/* 8 */ /^(?:tradiční|lidová)\s+/,
	/* 9 */ /^(?:[Ll]iturgical\b|[Ll]iturgick[áý])/,
];

const siteApiTimeframeStorageKey = 'AJAX time frame', gazelleApiFrame = 10500;
let groupArtists, xhr = new XMLHttpRequest;
let modal = null, btnAdd = null, btnCustom = null, customCtrls = [], sel = null, ajaxRejects = 0;
let prefs = {
	set: function(prop, def) { this[prop] = GM_getValue(prop, def) }
};
try { var siteArtistsCache = JSON.parse(sessionStorage.siteArtistsCache) } catch(e) { siteArtistsCache = [ ] }
try { var notSiteArtistsCache = JSON.parse(sessionStorage.notSiteArtistsCache) } catch(e) { notSiteArtistsCache = [ ] }
let redacted_api_key = GM_getValue('redacted_api_key');

Array.prototype.includesCaseless = function(str) {
	if (typeof str != 'string') return false;
	str = str.toLowerCase();
	return this.find(elem => typeof elem == 'string' && elem.toLowerCase() == str) != undefined;
};
Array.prototype.pushUnique = function(...items) {
	if (Array.isArray(items) && items.length > 0) items.forEach(it => { if (!this.includes(it)) this.push(it) });
	return this.length;
};
Array.prototype.pushUniqueCaseless = function(...items) {
	if (Array.isArray(items) && items.length > 0) items.forEach(it => { if (!this.includesCaseless(it)) this.push(it) });
	return this.length;
};

(function() {
	'use strict';

	const styleSheet = `
.modal {
	position: fixed;
	left: 0;
	top: 0;
	width: 100%;
	height: 100%;
	background-color: rgba(0, 0, 0, 0.5);
	opacity: 0;
	visibility: hidden;
	transform: scale(1.1);
	transition: visibility 0s linear 0.25s, opacity 0.25s 0s, transform 0.25s;
}

.modal-content {
	position: absolute;
	top: 50%;
	left: 50%;
	font-size: 17px;
	transform: translate(-50%, -50%);
	background-color: FloralWhite;
	color: black;
	width: 31rem;
	border-radius: 0.5rem;
	padding: 2rem 2rem 2rem 2rem;
	font-family: monospace;
}

.show-modal {
	opacity: 1;
	visibility: visible;
	transform: scale(1.0);
	transition: visibility 0s linear 0s, opacity 0.25s 0s, transform 0.25s;
}

input[type="text"] { cursor: text; }
input[type="radio"] { cursor: pointer; }
.lbl { cursor: pointer; }

.tooltip {
	position: relative;
}

.tooltip .tooltiptext {
	visibility: hidden;
	width: 120px;
	background-color: #555;
	color: #fff;
	text-align: center;
	border-radius: 6px;
	padding: 5px 0;
	position: absolute;
	z-index: 1;
	bottom: 125%;
	left: 50%;
	margin-left: -60px;
	opacity: 0;
	transition: opacity 0.3s;
}

.tooltip .tooltiptext::after {
	position: absolute;
	top: 100%;
	left: 50%;
	margin-left: -5px;
	border-width: 5px;
	border-style: solid;
	border-color: #555 transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
	visibility: visible;
	opacity: 1;
}

button.splitter {
	position: relative;
	width: 20pt;
	height: 20pt;
	text-align: center;
	font-weight: bold;
	font-size: 10pt;
	top: -1pt;
	background-color: darkolivegreen;
	color: white;
}
`;

	let addBox = document.querySelector('form.add_form[name="artists"]');
	if (addBox == null) return;
	btnAdd = document.createElement('input');
	btnAdd.id = 'add-artists-from-selection';
	btnAdd.value = 'Extract from selection';
	btnAdd.onclick = add_from_selection;
	btnAdd.type = 'button';
	btnAdd.style.marginLeft = '5px';
	btnAdd.style.visibility = 'hidden';
	addBox.appendChild(btnAdd);

	let style = document.createElement('style');
	document.head.appendChild(style);
	style.id = 'artist-parser-form';
	style.type = 'text/css';
	style.innerHTML = styleSheet;
	let el, elem = [];
	elem.push(document.createElement('div'));
	elem[elem.length - 1].className = 'modal';
	elem[elem.length - 1].id = 'add-from-selection-form';
	modal = elem[0];
	elem.push(document.createElement('div'));
	elem[elem.length - 1].className = 'modal-content';
	elem.push(document.createElement('input'));
	elem[elem.length - 1].id = 'btnFill';
	elem[elem.length - 1].type = 'submit';
	elem[elem.length - 1].value = 'Capture';
	elem[elem.length - 1].style = "position: fixed; right: 30px; width: 80px; top: 30px;";
	elem[elem.length - 1].onclick = doParse;
	elem.push(document.createElement('input'));
	elem[elem.length - 1].id = 'btnCancel';
	elem[elem.length - 1].type = 'button';
	elem[elem.length - 1].value = 'Cancel';
	elem[elem.length - 1].style = "position: fixed; right: 30px; width: 80px; top: 65px;";
	elem[elem.length - 1].onclick = closeModal;
	let presetIndex = 0;
	function addPreset(val, label = 'Custom', rx = null, order = [1, 2]) {
		elem.push(document.createElement('div'));
		el = document.createElement('input');
		elem[elem.length - 1].style.paddingBottom = '10px';
		el.id = 'parse-preset-' + val;
		el.name = 'parse-preset';
		el.value = val;
		if (val == 1) el.checked = true;
		el.type = 'radio';
		el.onchange = update_custom_ctrls;
		if (rx) {
			el.rx = rx;
			el.order = order;
		}
		if (val == 999) btnCustom = el;
		elem[elem.length - 1].appendChild(el);
		el = document.createElement('label');
		el.style.marginLeft = '10px';
		el.style.marginRight = '10px';
		el.htmlFor = 'parse-preset-' + val;
		el.className = 'lbl';
		el.innerHTML = label;
		elem[elem.length - 1].appendChild(el);
		if (val != 999) return;
		el = document.createElement('input');
		el.type = 'text';
		el.id = 'custom-pattern';
		el.style.width = '20rem';
		el.style.fontFamily = 'monospace';
		el.autoComplete = "on";
		addTooltip(el, 'RegExp to parse lines, first two captured groups are used');
		customCtrls.push(elem[elem.length - 1].appendChild(el));
		el = document.createElement('input');
		el.type = 'radio';
		el.name = 'parse-order';
		el.id = 'parse-order-1';
		el.value = 1;
		el.checked = true;
		el.style.marginLeft = '1rem';
		addTooltip(el, 'Captured regex groups assigned in order $1: artist(s), $2: assignment');
		customCtrls.push(elem[elem.length - 1].appendChild(el));
		el = document.createElement('label');
		el.htmlFor = 'parse-order-1';
		el.textContent = '→';
		el.style.marginLeft = '5px';
		elem[elem.length - 1].appendChild(el);
		el = document.createElement('input');
		el.type = 'radio';
		el.name = 'parse-order';
		el.id = 'parse-order-2';
		el.value = 2;
		el.style.marginLeft = '10px';
		addTooltip(el, 'Captured regex groups assigned in order $1: assignment, $2: artist(s)');
		customCtrls.push(elem[elem.length - 1].appendChild(el));
		el = document.createElement('label');
		el.htmlFor = 'parse-order-2';
		el.textContent = '←';
		el.style.marginLeft = '5px';
		elem[elem.length - 1].appendChild(el);
	}
	addPreset(++presetIndex, escapeHTML('<artist(s)>[ - <assignment>]'), /^\s*(.+?)(?:\:|\s+[\-\−\—\~\–]+\s+(.*?))?\s*$/);
	addPreset(++presetIndex, escapeHTML('<artist>[, <assignment>]') +
		'<span style="font-family: initial;">&nbsp;&nbsp;<i>(HRA style)</i></span>', /^\s*(.+?)(?:\:|\s*,\s*(.*?))?\s*$/);
	addPreset(++presetIndex, escapeHTML('<artist(s)>[: <assignment>]'), /^\s*(.+?)(?:\:|\s*:+\s*(.*?))?(?:\s*,)?\s*$/);
	addPreset(++presetIndex, escapeHTML('<artist(s)>[ (<assignment>)]'), /^\s*(.+?)(?:\:|\s+(?:\([^\(\)]+\)|\[[^\[\]]+\]|\{[^\{\}]+\}))?(?:\s*,)?\s*$/);
	addPreset(++presetIndex, escapeHTML('<artist(s)>[ | <assignment>]'), /^\s*(.+?)(?:\s*\|\s*(.*?))?(?:\s*,)?\s*$/);
	addPreset(++presetIndex, escapeHTML('[<assignment> - ]<artist(s)>'), /^\s*(?:(.*?)\s+[\-\−\—\~\–]+\s+)?(.+?)\:?(?:\s*,)?\s*$/, [2, 1]);
	addPreset(++presetIndex, escapeHTML('[<assignment>: ]<artist(s)>'), /^\s*(?:(.*?)\s*:+\s*)?(.+?)\:?(?:\s*,)?\s*$/, [2, 1]);
	addPreset(++presetIndex, escapeHTML('[<assignment> | ]<artist(s)>'), /^\s*(?:(.*?)\s*\|\s*)?(.+?)\:?(?:\s*,)?\s*$/, [2, 1]);
	addPreset(++presetIndex, escapeHTML('<artist>[ / <assignment>]'), /^\s*(.+?)(?:\:|\s*\/+\s*(.*?))?(?:\s*,)?\s*$/);
	addPreset(++presetIndex, escapeHTML('<artist>[; <assignment>]'), /^\s*(.+?)(?:\:|\s*;\s*(.*?))?(?:\s*,)?\s*$/);
	addPreset(++presetIndex, escapeHTML('[<assignment> / ]<artist(s)>'), /^\s*(?:(.*?)\s*\/+\s*)?(.+?)\:?(?:\s*,)?\s*$/, [2, 1]);
	addPreset(++presetIndex, '<span style="font-family: initial;">From tracklist</span>',
		/^\s*((?:\d+|[A-Z](?:\d+)?)(?:[\-\.](?:\d+|[A-Za-z])|[A-Za-z])?)(?:\s*[\-\−\—\~\–\.\:]\s*|\s+)(.+?)(?:\s+(\((?:\d+:)?\d+:\d+\)|\[(?:\d+:)?\d+:\d+\]))?\s*$/, []);
	addPreset(999);
	elem.slice(2).forEach(k => { elem[1].appendChild(k) });
	elem[0].appendChild(elem[1]);
	document.body.appendChild(elem[0]);
	window.addEventListener("click", windowOnClick);
	document.addEventListener('selectionchange', function(evt) {
		let cs = window.getComputedStyle(modal);
		if (!btnAdd || window.getComputedStyle(modal).visibility != 'hidden') return;
		let sel = document.getSelection();
		showHideAddbutton();
	});
})();

function add_from_selection() {
	sel = document.getSelection();
	if (sel.isCollapsed || modal == null) return;
	prefs.set('preset', 1);
	prefs.set('custom_pattern', '^\\s*(.+?)(?:\\s*:+\\s*(.*?)|\\:)?\\s*$');
	prefs.set('custom_pattern_order', 1);
	setRadiosValue('parse-preset', prefs.preset);
	customCtrls[0].value = prefs.custom_pattern;
	setRadiosValue('parse-order', prefs.custom_pattern_order);
	sel = sel.toString();
	update_custom_ctrls();
	modal.classList.add("show-modal");
}

function doParse(expr, flags = '') {
	closeModal();
	if (!sel) return;
	let preset = getSelectedRadio('parse-preset');
	if (preset == null) return;
	prefs.preset = preset.value;
	let order = preset.order,
			custom_parse_order = getSelectedRadio('parse-order'),
			rx = preset.rx;
	if (!rx && preset.value == 999 && custom_parse_order != null) {
		rx = new RegExp(customCtrls[0].value);
		order = custom_parse_order != null ?
			custom_parse_order.value == 1 ? [1, 2] : custom_parse_order.value == 2 ? [2, 1] : null : [1, 2];
	}
	groupArtists = [
		'artist_main', 'artist_guest', 'artists_remix', 'artists_composers',
		'artists_conductors', 'artists_dj', 'artists_producer', 'artists_arranger',
	].map(category => Array.from(document.querySelectorAll(`ul#artist_list > li.${category} > a`)).map(a => a.textContent.trim()));
	cleanupArtistsForm();
	sel.split(/(?:\r?\n)+/).forEach(function(line) {
		line = line.trim().replace(/\s+\(tracks?\b[^\(\)]+\)/, '').replace(/\s+\[tracks?\b[^\[\]]+\]/, '');
		if (!line || /^\s*(?:Recorded|Mastered)\b/i.test(line)) return;
		let matches = /^\s*(?:Produced)[ \-\−\—\~\–]by (.+?)\s*$/.exec(line);
		if (matches != null) splitAmpersands(matches[1]).forEach(producer => { addArtist(producer, 7) });
		else if (rx instanceof RegExp && (matches = rx.exec(line)) != null) {
			if (!Array.isArray(order) || order.length < 2) {
				let title = matches[2];
				if (/^(.+?) [\-\−\—\–] /.test(title)) {
					let artist = RegExp.$1;
					if ((matches = featArtistParsers.slice(0, 2).reduce((m, rx) => m || rx.exec(artist), null)) != null) {
						splitAmpersands(artist.slice(0, matches.index)).forEach(artist => { addArtist(artist, 1) });
						splitAmpersands(matches[1]).forEach(artist => { addArtist(artist, 2) });
					} else splitAmpersands(artist).forEach(artist => { addArtist(artist, 1) });
				}
				if ((matches = featArtistParsers.slice(1).reduce((m, rx) => m || rx.exec(title), null)) != null)
					splitAmpersands(matches[1]).forEach(guest => { addArtist(guest, 2) });
				if ((matches = remixParsers.slice(4).reduce((m, rx) => m || rx.exec(title), null)) != null)
					splitAmpersands(matches[1]).forEach(remixer => { addArtist(remixer, 3) });
				if ((matches = prodParsers.reduce((m, rx) => m || rx.exec(title), null)) != null)
					splitAmpersands(matches[1]).forEach(producer => { addArtist(producer, 7) });
// 				if ((matches = arrParsers.reduce((m, rx) => m || rx.exec(title), null)) != null)
// 					splitAmpersands(matches[1]).forEach(arranger => { addArtist(arranger, 8) });
			} else if (matches[order[0]]) {
				let role = deduceArtist(matches[order[1]]);
				splitAmpersands(matches[order[0]]).forEach(artist => { addArtist(artist, role) });
			} else splitAmpersands(matches[order[1]]).forEach(artist => { addArtist(artist, 2) });
		}
	});
	prefs.custom_pattern = customCtrls[0].value;
	prefs.custom_pattern_order = custom_parse_order != null ? custom_parse_order.value : 1;
	for (let i in prefs) { if (typeof prefs[i] != 'function') GM_setValue(i, prefs[i]) }
	if (siteArtistsCache.length > 0) sessionStorage.siteArtistsCache = JSON.stringify(siteArtistsCache);
	if (notSiteArtistsCache.length > 0) sessionStorage.notSiteArtistsCache = JSON.stringify(notSiteArtistsCache);
	return;

	function deduceArtist(str) {
		if (/\b(?:remix)/i.test(str)) return 3; // remixer
		if (/\b(?:composer|libretto|lyric\w*|written[ \-\−\—\~\–]by)\b/i.test(str)) return 4; // composer
		if (/\b(?:conduct|director\b|direction\b)/i.test(str)) return 5; // conductor
		if (/\b(?:compiler\b)/i.test(str)) return 6; // compiler
		if (/\b(?:producer\b|produced[ \-\−\—\~\–]by\b)/i.test(str)) return 7; // producer
		return 2;
	}

	function addArtist(name, type = 1) {
		if (!name || !(type > 0) || pseudoArtistParsers.some(rx => rx.test(name))) return false;
		// avoid dupes
		if (groupArtists[type - 1].includesCaseless(name)) return false;
		switch (type) {
			case 1: if ([4, 5].some(cat => groupArtists[cat].includesCaseless(name))) return false; break;
			case 2: if ([0, 4, 5].some(cat => groupArtists[cat].includesCaseless(name))) return false; break;
		}
		let input = assignFreeArtistField();
		if (input == null) throw 'could not allocate free artist slot';
		input.value = name;
		const importance = input.nextElementSibling;
		importance.value = type;
		groupArtists[type - 1].push(name);
		if (ampersandParsers.some(rx => rx.test(name))) {
			let button = document.createElement('button');
			button.className = 'splitter';
			button.textContent = '↔';
			button.onclick = function(evt) {
				let artists = [input.value];
				ampersandParsers.forEach(function(rx) {
					for (let index = artists.length - 1; index >= 0; --index) {
						artists.splice(index, 1, ...artists[index].split(rx));
					}
				});
				if (artists.length > 1) {
					const artistUsed = artist => artist && parseInt(importance.value) > 0
						&& groupArtists[parseInt(importance.value) - 1].includesCaseless(artist);
					input.value = !artistUsed(artists[0]) ? artists[0] : '';
					artists.slice(1).forEach(function(artist) {
						if (artistUsed(artist)) return;
						let input = assignFreeArtistField();
						if (input == null) throw 'could not allocate free artist slot';
						input.value = artist;
						input.nextElementSibling.value = importance.value;
					});
				}
				evt.target.remove();
			};
			input.insertAdjacentElement('afterend', button);
		}
		return true;
	}
}

function closeModal() {
	if (modal == null) return;
	showHideAddbutton();
	modal.classList.remove("show-modal");
}

function windowOnClick(event) {
	if (modal != null && event.target === modal) closeModal();
}

function update_custom_ctrls() {
	function en(elem) {
		if (elem == null || btnCustom == null) return;
		elem.disabled = !btnCustom.checked;
		elem.style.opacity = btnCustom.checked ? 1 : 0.5;
	}
	customCtrls.forEach(k => { en(k) });
}

function getSelectedRadio(name) {
	for (let i of document.getElementsByName(name)) { if (i.checked) return i }
	return null;
}

function setRadiosValue(name, val) {
	for (let i of document.getElementsByName(name)) { if (i.value == val) i.checked = true }
}

function showHideAddbutton() {
	//btnAdd.style.visibility = document.getSelection().type == 'Range' ? 'visible' : 'hidden';
	btnAdd.style.visibility = document.getSelection().isCollapsed ? 'hidden' : 'visible';
}

function escapeHTML(string) {
	let pre = document.createElement('pre'), text = document.createTextNode(string);
	pre.appendChild(text);
	return pre.innerHTML;
}

function cleanupArtistsForm() {
	document.querySelectorAll('div#AddArtists > input[name="aliasname[]"]').forEach(function(input) {
		input.value = '';
		input.nextElementSibling.value = 1;
	});
	document.querySelectorAll('div#AddArtists > button.splitter').forEach(button => { button.remove() });
}

function assignFreeArtistField() {
	function findFreeSlot() {
		for (let input of document.querySelectorAll('div#AddArtists > input[name="aliasname[]"]'))
			if (input.value.length <= 0) return input;
		return null;
	}
	return findFreeSlot() || (AddArtistField(), findFreeSlot());
}

function addTooltip(elem, text) {
	if (elem == null) return;
	elem.classList.add('tooltip');
	var tt = document.createElement('span');
	tt.className = 'tooltiptext';
	tt.textContent = text;
	elem.appendChild(tt);
}

function twoOrMore(artist) { return artist.length >= 2 && !pseudoArtistParsers.some(rx => rx.test(artist)) };
function looksLikeTrueName(artist, index = 0) {
	return twoOrMore(artist)
		&& (index == 0 || !/^(?:his\b|her\b|Friends$|Strings$)/i.test(artist))
		&& artist.split(/\s+/).length >= 2
		&& !pseudoArtistParsers.some(rx => rx.test(artist)) || isSiteArtist(artist);
}

function strip(art, level = 0) {
	return typeof art == 'string' ? [
		/\s+(?:aka|AKA|Aka)\.?\s+(.*)$/g,
		/\s*\([^\(\)]+\)/g,
		/\s*\[[^\[\]]+\]/g,
		/\s*\{[^\{\}]+\}/g,
	].slice(level).reduce((acc, rx) => acc.replace(rx, ''), art) : undefined;
}

function isSiteArtist(artist) {
	if (!artist || notSiteArtistsCache.includesCaseless(artist)) return false;
	if (siteArtistsCache.includesCaseless(artist)) return true;
	let now = Date.now();
	try { var apiTimeFrame = JSON.parse(localStorage[siteApiTimeframeStorageKey]) } catch(e) { apiTimeFrame = { } }
	if (!apiTimeFrame.timeStamp || now > apiTimeFrame.timeStamp + gazelleApiFrame) {
		apiTimeFrame.timeStamp = now;
		apiTimeFrame.requestCounter = 1;
	} else ++apiTimeFrame.requestCounter;
	localStorage[siteApiTimeframeStorageKey] = JSON.stringify(apiTimeFrame);
	if (apiTimeFrame.requestCounter > 5) {
		if (groupArtists.some(art => art.includesCaseless(artist))) return true;
		console.debug('isSiteArtist() request exceeding AJAX API time frame: /ajax.php?action=artist&artistname="' +
			artist + '" (' + apiTimeFrame.requestCounter + ')');
		++ajaxRejects;
		btnAdd.disabled = true;
		setTimeout(() => { btnAdd.disabled = false }, apiTimeFrame.timeStamp + gazelleApiFrame - now);
		return undefined;
	}
	try {
		let requestUrl = '/ajax.php?action=artist&artistname=' + encodeURIComponent(artist);
		xhr.open('GET', requestUrl, false);
		if (document.location.hostname == 'redacted.ch' && redacted_api_key) xhr.setRequestHeader('Authorization', redacted_api_key);
		xhr.send();
		if (xhr.status == 404) {
			notSiteArtistsCache.push(artist);
			return false;
		}
		if (xhr.readyState != XMLHttpRequest.DONE || xhr.status < 200 || xhr.status >= 400) {
			console.warn('isSiteArtist("' + artist + '") error:', xhr, 'url:', document.location.origin + requestUrl);
			return undefined; // error
		}
		let response = JSON.parse(xhr.responseText);
		if (response.status != 'success') {
			notSiteArtistsCache.push(artist);
			return false;
		}
		if (!response.response) return false;
		siteArtistsCache.push(artist);
		return true;
	} catch(e) {
		console.error('isSiteArtist("' + artist + '"):', e, xhr);
		return undefined;
	}
}

function splitArtists(str, parsers = multiArtistParsers) {
	let result = [str];
	parsers.forEach(function(parser) {
		for (let i = result.length; i > 0; --i) {
			let j = result[i - 1].split(parser).map(strip);
			if (j.length > 1 && j.every(twoOrMore) && !j.some(artist => pseudoArtistParsers.some(rx => rx.test(artist)))
					&& !isSiteArtist(result[i - 1])) result.splice(i - 1, 1, ...j);
		}
	});
	return result;
}

function splitAmpersands(artists) {
	if (typeof artists == 'string') var result = splitArtists(strip(artists, 1));
		else if (Array.isArray(artists)) result = Array.from(artists); else return [];
	ampersandParsers.forEach(function(ampersandParser) {
		for (let i = result.length; i > 0; --i) {
			let j = result[i - 1].split(ampersandParser).map(strip);
			if (j.length <= 1 || isSiteArtist(result[i - 1]) || !j.every(looksLikeTrueName)) continue;
			result.splice(i - 1, 1, ...j.filter(function(artist) {
				return !result.includesCaseless(artist) && !pseudoArtistParsers.some(rx => rx.test(artist));
			}));
		}
	});
	return result;
}

QingJ © 2025

镜像随时可能失效，请加Q群300939539或关注我们的公众号极客氢云获取最新地址