// ==UserScript==
// @name           Content Filter
// @name:ja        コンテンツフィルター
// @namespace      https://greasyfork.org/en/users/1264733
// @version        2024-04-14
// @description    Hide not interested content
// @description:ja 興味のない内容を隠す
// @author         LE37
// @license        MIT
// @include        https://forum.palemoon.org/viewforum*
// @include        https://forum.palemoon.org/viewtopic*
// @include        https://forum.vivaldi.net/category/*
// @include        https://forum.vivaldi.net/topic/*
// @include        https://kakuyomu.jp/pickup_works*
// @include        https://kakuyomu.jp/rankings/*
// @include        https://kakuyomu.jp/recent_works*
// @include        https://kakuyomu.jp/works/*/comments*
// @include        https://kakuyomu.jp/works/*/episodes/*
// @include        https://novelcom.syosetu.com/impression/*
// @include        https://yomou.syosetu.com/rank/*
// @include        https://syosetu.org/?mode=rank*
// @include        https://syosetu.org/?mode=review*
// @include        https://www.alphapolis.co.jp/novel/index*
// @include        https://www.alphapolis.co.jp/novel/ranking/*
// @include        https://www.alphapolis.co.jp/novel/*/comment*
// @include        https://www.ign.com/articles/*
// @include        https://www.yandex.com/search/*
// @include        https://yandex.com/search/*
// @exclude        https://www.alphapolis.co.jp/novel/ranking/annual
// @exclude        https://yomou.syosetu.com/rank/top/
// @grant          GM_registerMenuCommand
// @grant          GM_setValue
// @grant          GM_getValue
// @downloadURL none
// ==/UserScript==

(()=>{
	'use strict';
	// GM Key
	let gMk;
	switch (location.host) {
		case "www.alphapolis.co.jp":
			gMk = "APS";
			break;
		case "syosetu.org":
			gMk = "HML";
			break;
		case "www.ign.com":
			gMk = "IGN";
			break;
		case "kakuyomu.jp":
			gMk = "KYU";
			break;
		case "novelcom.syosetu.com":
			gMk = "NUC";
			break;
		case "yomou.syosetu.com":
			gMk = "NRK";
			break;
		case "forum.palemoon.org":
			gMk = "PMF";
			break;
		case "forum.vivaldi.net":
			gMk = "VVF";
			break;
		case "yandex.com":
		case "www.yandex.com":
			gMk = "YDX";
			break;
		default:
			//console.log("DoNothing");
	}
	if (gMk) {
		RUN();
	}
	function RUN() {
		// GM Menu
		GM_registerMenuCommand("View", SVM);
		GM_registerMenuCommand("Save", USV);
		// cSr: ShadowsRoot, cFt: FireTime, eOn: MutationObserverNode, eIo: IntersectionObserverNode, eNo: Node, eUl: UserLink, sId: UserID, sTg: Tag, eAt: Alter;
		let cSr, cFt, eOn, eIo, eNo, eUl, sId, sTg, eAt;
		// Client Type
		const rMb = navigator.userAgent.includes("Mobile");
		const uRi = location.href;
		switch (gMk) {
			case "APS":
				// Alphapolis
				cFt = 0;
				if (uRi.includes("comment")) {
					// Comments
					eNo = "div.comment";
					eUl = "span.name>a";
				} else {
					// Ranking
					eNo = "div.section";
					eUl = "div.author>a";
					sTg = "li.tag a";
				}
				sId = /detail\/(\d+)$/;
				break;
			case "HML":
				// Hameln
				cFt = 0;
				eNo = rMb ? "div.search_box" : "div.section3";
				if (uRi.includes("rank")) {
					// Ranking
					eUl = "div.blo_title_sak a";
					sTg = "div.all_keyword:nth-child(9) a";
				} else {
					// Comments
					eUl = "h3>a:nth-child(1)";
				}
				sId = /((?<=uid=).*|(\d+)(?=\/))/;
				break;
			case "IGN":
				// IGN
				cSr = 1;
				cFt = 3;
				eIo = '#comments-section';
				eOn = '.spcv_conversation';
				eNo = "li";
				eUl = null;
				eAt = 'span[data-spot-im-class="message-username"]';
				sId = /(.*)/;
				break;
			case "KYU":
				// Kakuyomu
				if (uRi.includes("/pickup") || uRi.includes("/rank") || uRi.includes("/recent")) {
					// Ranking
					cFt = 0;
					eNo = "div.widget-work";
					eUl = "a.widget-workCard-authorLabel";
					sId = /users\/(.*)$/;
					sTg = "a[itemprop='keywords']";
				} else if (uRi.includes("comments")) {
					// Comments
					cFt = 2;
					eOn = '#__next';
					eNo = rMb ? 'div[class^="NewBox_box__"]>ul>li' : 'ul:nth-child(1) li';
					eUl = 'div.partialGiftWidgetActivityName>a';
				} else {
					// Comments in Episode
					cFt = 2;
					eOn = "#episodeFooter-cheerComments-panel-mainContents";
					eNo = "ul.widget-cheerCommentList li";
					eUl = "h5.widget-cheerComment-author a";
				}
				sId = /users\/(.*)$/;
				break;
			case "NUC":
				// Narou Comments
				cFt = 0;
				eNo = rMb ? "div.impression" : "div.waku";
				eUl = "div.comment_authorbox>div>a";
				eAt = "div.comment_authorbox>div";
				sId = /\/(\d+)/;
				break;
			case "NRK":
				// Narou Ranking
				cFt = 0;
				eNo = "div.p-ranklist-item";
				eUl = "div.p-ranklist-item__author a";
				sId = /\/(\d+)/;
				sTg = "div.p-ranklist-item__keyword a";
				break;
			case "PMF":
				// Palemoon Forum
				cFt = 0;
				if (uRi.includes("viewtopic")) {
					// Topic
					eNo = "#page-body div.post";
					eUl = 'a[class^="username"]';
					sId = /u=(\d+)/;
				} else {
					// Index
					eNo = "ul.topiclist>li";
					eUl = "div.topic-poster>a";
					sId = /u=(\d+)/;
				}
				break;
			case "VVF":
				// Vivaldi Forum
				cFt = 0;
				if (uRi.includes("topic")) {
					// Topic
					eNo = "ul.posts>li";
					eUl = "small.d-flex a";
					sId = /user\/(.*)/;
				} else {
					// Index
					eNo = "ul.topic-list li";
					eUl = "small.hidden-xs>a";
					sId = /user\/(.*)/;
				}
				break;
			case "YDX":
				// Yandex Search
				cFt = 0;
				eNo = rMb ? "div.serp-item" : "#search-result>li";
				eUl = rMb ? null : "div.Path>a.Link";
				eAt = "span.Path-Item>b";
				sId = rMb ? /(.*)/ : /\/([^\/]+)/;
				break;
		}
		// Read List
		const URD = GM_getValue(gMk);
		let tlo = URD ? URD : { BAL:[], BTL:[] };
		const tal = tlo.BAL;
		const ttl = tlo.BTL;
		// Save List
		function USV() {
			tlo = { BAL:tal, BTL:ttl };
			GM_setValue(gMk, tlo);
		}
		// Select View
		let cSv = 0;
		// Script Fire Time
		switch (cFt) {
			case 1:
				RSC();
				break;
			case 2:
				MOC();
				break;
			case 3:
				IOC();
				break;
			case 0:
			default:
				FTR();
		}
		// ReadyState
		function RSC() {
			document.addEventListener("readystatechange", (e) => {
				if (e.target.readyState === "complete") {
					FTR();
				}
			});
		}
		// MutationObserver
		function MOC() {
			const obs = new MutationObserver(() => {
				FTR();
				//obs.disconnect();
			});
			// Shadowroot fix
			const obn = cSr ? document.querySelector('div[data-spotim-module]').firstElementChild.shadowRoot.querySelectorAll(eOn)[0] : document.querySelector(eOn);
			obs.observe(obn, {
				childList: true,
				subtree: true
			});
		}
		// IntersectionObserver
		function IOC() {
			const ioc = new IntersectionObserver((entries) => {
				if (entries[0].intersectionRatio <= 0) return;
				FTR();
				// IGN fix
				if (gMk === "IGN") {
					MOC();
				}
				ioc.disconnect();
			});
			ioc.observe(document.querySelector(eIo));
		}
		// Filtering
		function FTR() {
			// Shadowroot fix
			// ShadowHost, ShadowRoot
			let eSh, eSr;
			if (cSr) {
				eSh = document.querySelector('div[data-spotim-module]').firstElementChild;
				if (eSh) {
					eSr = eSh.shadowRoot;
				}
				//console.log(eSr);
			}
			const no = cSr ? eSr.querySelectorAll(eNo) : document.querySelectorAll(eNo);
			for (let i = 0; i < no.length; i++) {
				let rBk = false;
				let uId;
				// Filtering content contain single id(link) or text
				let eLk = eUl ? no[i].querySelector(eUl) : no[i].querySelector(eAt);
				if (eLk !== null || gMk === "NUC") {
					// Narou nologin user fix?????????????
					if (!eLk) {
						eLk = no[i].querySelector(eAt);
						uId = no[i].querySelector(eAt).textContent.split("\n")[2];
					} else {
						uId = eUl ? eLk.href.match(sId)[1] : eLk.textContent.match(sId)[1];
					}
					//console.log(uId);
					rBk = CHK(eLk, tal, uId);
				}
				if (!rBk) {
					// Filtering content contain multiple tags(text)
					// N18 fix
					const tno = no[i].querySelectorAll(sTg);
					if (tno !== null) {
						for (let j = 0; j < tno.length; j++) {
							const tag = tno[j].textContent;
							//console.log(tag);
							rBk = CHK(tno[j], ttl, tag);
							if (rBk) {
								break;
							}
						}
					}
				}
				// Blocked Show Type
				if (cSv === 0) {
					no[i].style.visibility = rBk ? "hidden" : "visible";
					no[i].style.opacity = "1";
				} else {
					no[i].style.visibility = "visible";
					no[i].style.opacity = rBk ? "0.5" : "1";
				}
			}
		}
		// CheckKeyword
		function CHK(ele, l, s) {
			const result = l.some((v) => s === v);
			if (cSv === 1) {
				ele.style.border = result ? "thin solid lime" : "thin solid red";
			} else {
				ele.style.border = "none";
			}
			return result;
		}
		// SelectViewMode
		function SVM() {
			if (cSv === 0) {
				cSv = 1;
				// Disable default click
				document.addEventListener("click", PAC, true);
			} else {
				cSv = 0;
				// Disable default click
				document.removeEventListener("click", PAC, true);
				// AutoSave
				//USV();
			}
			FTR();
		}
		// PreventAnchorChange
		function PAC(e) {
			e.preventDefault();
		  	e.stopPropagation();
			const targetElement = cSr ? e.composedPath()[0] : e.target;
			//console.log(targetElement);
			let eLk;
			// Narou nologin user fix
			if (gMk === "NUC") {
				eLk = targetElement.href ? eUl : eAt;
			} else {
				eLk = eUl ? eUl : eAt;
			}
			if (targetElement.closest(eLk)) {
				let ai;
				switch (gMk) {
					// Narou nologin user fix
					case "NUC":
						ai = targetElement.href ? targetElement.href.match(sId)[1] : targetElement.textContent.split("\n")[2];
						break;
					// Yandex fix
					case "YDX":
						ai = targetElement.href ? targetElement.href.match(sId)[1] : targetElement.parentElement.href.match(sId)[1];
						break;
					default:
						ai = eUl ? targetElement.href.match(sId)[1] : targetElement.textContent.match(sId)[1];
				}
				//console.log(ai);
				UTL(e, ai, tal);
			} else if (targetElement.closest(sTg)) {
				const kd = targetElement.textContent;
				UTL(e, kd, ttl);
			}
			FTR();
			return false;
		}
		// UpdateTempList
		function UTL(e, s, l) {
			const li = l.findIndex((v) => v === s);
			if (li !== -1) {
				l.splice(li,1);
			} else {
				l.push(s);
			}
			//console.log(l);
			return l;
		}
	}
})();