Crazy Factory Thread Filter

Adds a filter based on thread type

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

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

(I already have a user script manager, let me install it!)

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.

(I already have a user style manager, let me install it!)

// ==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 });

})();