// ==UserScript==
// @name         Customize Zeit Online
// @namespace    https://greasyfork.org/en/users/689160-georg-vogt
// @version      3.0
// @description  Entferne unerwünschte Artikel/Abschnitte aus Zeit Online
// @author       Georg Vogt
// @match        https://www.zeit.de/*
// @run-at       document-body
// @downloadURL none
// ==/UserScript==

'use strict';

function hideNode(node) {
    try {
        node.style.display = 'none';
        //  node.style.background = 'red'; //  debug
    } catch {};
}

function hideParent(node, num) {
    if (i < 0) return;
    for (var i=0; i<num; i++) {
        node = node?.parentElement;
    }
    hideNode(node);
}


document.addEventListener('DOMContentLoaded', () => {
    // remove zplus articles
    const zplusArticles = document.querySelectorAll("article:not([data-zplus='zplus-dynamic']) svg.svg-symbol.zplus-logo");
    zplusArticles.forEach(node => hideParent(node, 5));

    // remove zett articles
    const zettArticles = document.querySelectorAll("article svg.svg-symbol.zett-logo");
    zettArticles.forEach(node => hideParent(node, 5));

    // remove Verlagsangebot
    const verlagsangebotArticles = document.querySelectorAll("article.zon-teaser-standard.zon-teaser-standard--ad");
    verlagsangebotArticles.forEach(node => hideNode(node));

    // remove podcasts
    const podcasts = document.querySelectorAll(["article.zon-teaser-standard.zon-teaser-standard--podcast","article.zon-teaser-wide.zon-teaser-wide--podcast"]);
    podcasts.forEach(node => hideNode(node));

    // remove bad single nodes
    const queries = new Map([
        ["section.zon-teaser-printbox", 1], // Diese Woche in der ZEIT
        ["section[data-ct-context='buzzboard']", 1], // Beliebte Artikel
        ["section[data-ct-context='headed-zplus']", 1], // Exklusiv für Digital-Abonnenten
        ["section[data-ct-context='wochenmarkt']", 1], // Wochenmarkt
        ["section.frame.frame--quiz", 2], //  Quiz
        ["section[data-ct-area='podcast-bar']", 1], // Podcasts
        ["section[data-ct-context='headed-zett']", 1], // ze.tt
        ["section[data-ct-context='headed-video']", 1], // Video
        ["section[data-ct-context='shop']", 1], // Shop
        ["section[data-ct-context='headed-spiele']", 1], // Spiele
        ["section[data-ct-context='dossier-das_beste_aus_z']", 1], // DAS BESTE AUS Z+
        ["aside.newsletter-signup", 0], // Newsletter
        ["aside.joblisting", 2], //  stellenangebot
        ["div.zg-wiegehtesihnen", 0], // Stimmungsumfrage
        ["figure [href='https://www.zeit.de/serie/die-kaenguru-comics']", 3], //  Känguru comic
    ]);
    queries.forEach((num, query) => hideParent(document.querySelector(query), num));

    // remove ad regions
    document.querySelectorAll("div.cp-region.cp-region--ad").forEach(node => hideNode(node));

    // remove sidebar Zeit+
    const sideBoxes = document.querySelectorAll("article aside.topicbox");
    for (const sideBox of sideBoxes) {
        if (sideBox.childNodes[1]?.childNodes[1]?.innerText == "DAS BESTE AUS Z+") {
            hideNode(sideBox);
        }
    }
});

// remove paywall footer
const callback = function(mutationsList, observer) {
    for(const mutation of mutationsList) {
        for (const node of mutation.addedNodes) {
            try {
                if (node.classList[0] == "paywall-footer") {
                    hideNode(node);
                    observer.disconnect();
                }
            } catch {}
        }
    }
};

const observer = new MutationObserver(callback);
observer.observe(document.body, {childList: true});