Crazy Factory Thread Filter

Adds a filter based on thread type
换行
// ==UserScript==
// @name         Crazy Factory Thread Filter
// @description  Adds a filter based on thread type
// @namespace    http://tampermonkey.net/
// @version      1.0
// @match        https://www.crazy-factory.com/*
// @grant        none
// @author       Threadgiver
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';

    // Create filter UI
    const panel = document.createElement('div');
    panel.style.cssText = `
        position: fixed; top: 80px; right: 10px; z-index: 9999;
        background: white; border: 1px solid #ccc; border-radius: 6px;
        padding: 10px; box-shadow: 0 2px 8px rgba(0,0,0,0.2);
        font-family: Arial, sans-serif; font-size: 13px;
    `;
    panel.innerHTML = `
        <div style="font-weight:bold; margin-bottom:8px;">Thread Filter</div>
        <label><input type="radio" name="cf_thread" value="all" checked> All</label><br>
        <label><input type="radio" name="cf_thread" value="internal"> Internally threaded</label><br>
        <label><input type="radio" name="cf_thread" value="external"> Externally threaded</label><br>
        <label><input type="radio" name="cf_thread" value="other"> Other / unspecified</label>
    `;
    document.body.appendChild(panel);

    function classifyProduct(el) {
        const title = el.querySelector('.title')?.textContent?.toLowerCase() || '';
        if (title.includes('internally threaded') || title.includes('internal thread')) return 'internal';
        if (title.includes('externally threaded') || title.includes('external thread') ||
            (title.includes('threaded') && !title.includes('internally'))) return 'external';
        return 'other';
    }

    function applyFilter(value) {
        document.querySelectorAll('li.product').forEach(el => {
            if (value === 'all') {
                el.style.display = '';
            } else {
                el.style.display = classifyProduct(el) === value ? '' : 'none';
            }
        });
    }

    panel.querySelectorAll('input[name="cf_thread"]').forEach(radio => {
        radio.addEventListener('change', e => applyFilter(e.target.value));
    });

    // Re-apply filter when products load dynamically
    const observer = new MutationObserver(() => {
        const active = panel.querySelector('input[name="cf_thread"]:checked');
        if (active && active.value !== 'all') applyFilter(active.value);
    });
    const productList = document.getElementById('products');
    if (productList) observer.observe(productList, { childList: true, subtree: true });

})();