// ==UserScript==
// @name         今日热榜优化
// @namespace    https://bbs.tampermonkey.net.cn/
// @version      0.8
// @description  今日热榜优化：宽度减少，去除广告，添加侧边栏导航
// @author       ZZW
// @license      MIT
// @grant        GM_addStyle
// @run-at       document-start
// @match        *://*.tophub.today/*
// ==/UserScript==

(function() {
    'use strict';

    // ======================
    // 第一部分：全局样式优化
    // ======================
    const css = `
        /* 内容隐藏 */
        .cq,
        .alert-warning,
        .bb-TT {
            display: none !important;
        }
        
        /* 宽度调整 */
        body {
            max-width: 80% !important;
            margin: auto !important;
        }
        
        /* 字体调整 */
        .mp .aa .tt,
        .cc-cd-cb .cc-cd-cb-l .cc-cd-cb-ll {
            font-size: 14px !important;
        }
        
        /* 侧边栏样式 (添加在全局样式中) */
        #scroll-sidebar {
            position: fixed !important;
            top: 64px !important;
            left: 0 !important;
            width: 130px !important;
            height: calc(100vh - 64px) !important;
            background: rgba(255,255,255,0.98) !important;
            display: flex !important;
            flex-direction: column !important;
            padding: 12px 0 !important;
            z-index: 99999 !important;
            overflow-y: auto !important;
            box-shadow: 2px 0 5px rgba(0,0,0,0.1) !important;
        }
        
        #scroll-sidebar button {
            flex: 0 0 auto !important;
            width: 100% !important;
            padding: 12px 0 !important;
            border: none !important;
            border-bottom: 1px solid #f0f0f0 !important;
            cursor: pointer !important;
            background: transparent !important;
            text-align: center !important;
            font-size: 14px !important;
            transition: background 0.3s !important;
            outline: none !important;
        }
        
        #scroll-sidebar button:hover {
            background: #f8f9fa !important;
        }
    `;

    // 注入CSS
    if (typeof GM_addStyle !== "undefined") {
        GM_addStyle(css);
    } else {
        const styleNode = document.createElement("style");
        styleNode.textContent = css;
        (document.head || document.documentElement).appendChild(styleNode);
    }

    // ======================
    // 第二部分：侧边栏功能
    // ======================
    // 检查是否为首页
    const isHomePage = window.location.host === 'tophub.today' && 
                      window.location.pathname === '/';

    if (isHomePage) {
        // 等待DOM加载完成
        window.addEventListener('DOMContentLoaded', function() {
            const categories = [
                '推荐', '综合', '科技', '人工智能',  '娱乐', '社区',
                '购物', '财经', '大学', '日报', '地方门户',
                '影视', '阅读', '游戏', '音乐', '体育', '产品',
                '开发', '设计', '应用', '汽车', '安全', '    '
            ];

            // 创建侧边栏容器
            const sidebar = document.createElement('div');
            sidebar.id = 'scroll-sidebar';

            // 创建导航按钮
            categories.forEach(category => {
                const btn = document.createElement('button');
                btn.textContent = category;
                btn.addEventListener('click', () => {
                    scrollToCategory(category);
                });
                sidebar.appendChild(btn);
            });

            // 添加到文档
            document.body.appendChild(sidebar);

            // 滚动功能
            function scrollToCategory(target) {
                const targetIndex = categories.indexOf(target);
                if (targetIndex === -1) return;
                
                window.scrollTo({
                    top: targetIndex * 512.78,
                    behavior: 'smooth'
                });
            }
        });
    }
})();