SankakuDLNamer

Help with DL naming
Versão de: 09/03/2021. Veja: a última versão.
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Wrap lines
// ==UserScript==
// @name        SankakuDLNamer
// @namespace   SankakuDLNamer
// @description Help with DL naming
// @author      SlimeySlither
// @match       http*://chan.sankakucomplex.com/*
// @match       http*://idol.sankakucomplex.com/*
// @match       http*://beta.sankakucomplex.com/*
// @run-at      document-end
// @version     1.0.1.4
// @grant       GM_download
// ==/UserScript==
(function () {
	'use strict';
	document.addEventListener("DOMContentLoaded", function () {
		const tagsidebar = document.getElementById('tag-sidebar');
		if(tagsidebar == null) {
			return;
		}

		let cats = GetSidebarTags(tagsidebar);

		let fileName = GenerateFilename(cats);
		fileName = fileName + fileName.hashCode();

		let details = SetUpDLDetails(fileName);

		var dl_me = function () {
			GM_download(details)
		}

		const a = document.createElement('a');
		a.href = '#';
		a.innerText = 'DL_Me';
		a.onclick = dl_me;

		tagsidebar.insertBefore(a, tagsidebar.childNodes[0]);
	});

	function GetSidebarTags(tagsidebar) {
		const tagGroups = tagsidebar.getElementsByTagName('li');

		let cats = {};
		for(let tagGroup of tagGroups) {
			const cat = tagGroup.className.trim();
			const anchs = tagGroup.getElementsByTagName('a');
			let tag = '';
			for(let anch of anchs) {
				if(anch.hasAttribute('id')) {
					tag = anch.innerText.replace(/\s/g, ' ')
						.trim();
				}
			}
			if(cat in cats) {
				if(tag != '') {
					cats.cat = cats[cat].push(tag);
				}
			} else {
				if(tag != '') {
					cats[cat] = [];
					cats[cat].push(tag);
				}
			}
		}

		return cats;
	}

	function GenerateFilename(cats) {
		return `${cats['tag-type-character'] == null ? '' :
		cats['tag-type-character'].join(' ') + ' ('}${cats['tag-type-copyright'] == null ? '' :
		cats['tag-type-copyright'].join(' ') + ') '}drawn by${cats['tag-type-artist'] == null ? '' :
		' ' + cats['tag-type-artist'].join(' ') + ' '}`;
	}

	function SetUpDLDetails(fileName) {
		const stat = document.getElementById('stats');
		let url = 'https:' + stat.querySelectorAll('#highres')[0].getAttribute("href")
			.trim();
		let extension = url.split('?')[0].split('.');
		extension = extension[extension.length - 1];
		let details = {
			'url': url, 
			'name': fileName + '.' + extension, 
			'saveAs': true
		}

		return details;
	}

	// https://stackoverflow.com/a/7616484
	String.prototype.hashCode = function () {
		var hash = 0, i, chr;
		if(this.length === 0) return hash;
		for(i = 0; i < this.length; i++) {
			chr = this.charCodeAt(i);
			hash = ((hash << 5) - hash) + chr;
			hash |= 0; // Convert to 32bit integer
		}
		return hash;
	};

})();