VOZ - Remove tag [HN]

VOZ - Remove tag [HN] in the alert page

K instalaci tototo skriptu si budete muset nainstalovat rozšíření jako Tampermonkey, Greasemonkey nebo Violentmonkey.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Violentmonkey.

K instalaci tohoto skriptu si budete muset nainstalovat rozšíření jako Tampermonkey nebo Userscripts.

You will need to install an extension such as Tampermonkey to install this script.

K instalaci tohoto skriptu si budete muset nainstalovat manažer uživatelských skriptů.

(Už mám manažer uživatelských skriptů, nechte mě ho nainstalovat!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(Už mám manažer uživatelských stylů, nechte mě ho nainstalovat!)

// ==UserScript==
// @name         VOZ - Remove tag [HN]
// @version              0.1.8
// @namespace    VOZ
// @description  VOZ - Remove tag [HN] in the alert page
// @author       N.Duong
// @license              MIT
// @match        https://voz.vn/*
// @run-at               document-start
// @icon         https://www.google.com/s2/favicons?sz=64&domain=voz.vn
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    function safeRemoveHNItems() {
        try {
            const items = document.querySelectorAll('li[data-alert-id]');
            let removedCount = 0;
            items.forEach(item => {
                try {
                    const labelSpan = item.querySelector('span.label.label--green');
                    if (labelSpan && labelSpan.textContent.trim() === 'HN') {
                        item.remove();
                        removedCount++;
                    }
                } catch (err) {
                    console.warn('Error checking/removing item:', err);
                }
            });
            if (removedCount > 0) {
                console.log(`Removed ${removedCount} HN items`);
            }
        } catch (err) {
            console.error('Error removing HN items:', err);
        }
    }

    safeRemoveHNItems();

    let observer = null;

    function setupObserver() {
        if (observer) {
            observer.disconnect();
        }

        observer = new MutationObserver((mutations) => {
            let shouldCheck = false;
            for (const mutation of mutations) {
                if (mutation.type === 'childList' && mutation.addedNodes.length > 0) {
                    shouldCheck = true;
                    break;
                }
            }

            if (shouldCheck) {
                clearTimeout(window.hnRemoveTimeout);
                window.hnRemoveTimeout = setTimeout(safeRemoveHNItems, 100);
            }
        });

        observer.observe(document.body, {
            childList: true,
            subtree: true
        });

        console.log('MutationObserver started for HN removal');
    }

    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', () => {
            safeRemoveHNItems();
            setupObserver();
            tryInjectBadge();
        });
    } else {
        safeRemoveHNItems();
        setupObserver();
        tryInjectBadge();
    }

    function tryInjectBadge() {
        let attempts = 0;
        const maxAttempts = 10;
        const intervalMs = 500;

        const retryInterval = setInterval(() => {
            attempts++;

            try {
                const alertLink = safeQuery('a[data-nav-id="ALERTS"]');
                const numberOfAlert = safeQuery('a[href="/account/alerts"]');

                if (alertLink && numberOfAlert) {
                    clearInterval(retryInterval);

                    const badgeValue = numberOfAlert.getAttribute('data-badge') || '0';
                    console.log("FOUND ALERTS link, badge =", badgeValue);

                    if (!alertLink.querySelector('.vn-alert-badge')) {
                        const badge = document.createElement('span');
                        badge.textContent = badgeValue;
                        badge.className = 'vn-alert-badge';
                        badge.style.cssText = `
                            background: red;
                            color: white;
                            border-radius: 21%;
                            padding: 2px 6px;
                            font-size: 12px;
                            margin-left: 6px;
                        `;
                        alertLink.appendChild(badge);
                    }
                }

                if (attempts >= maxAttempts) {
                    clearInterval(retryInterval);
                    console.warn("ALERTS link not found after 10 attempts.");
                }
            } catch (err) {
                console.error('Error during badge injection attempt:', err);
            }
        }, intervalMs);
    }

    function safeQuery(selector) {
        try {
            return document.querySelector(selector);
        } catch (err) {
            console.error(`Query failed for selector: ${selector}`, err);
            return null;
        }
    }

    document.addEventListener('visibilitychange', () => {
        if (!document.hidden) {
            setTimeout(safeRemoveHNItems, 500);
        }
    });

})();