// ==UserScript==
// @name         Via阅读模式标题修正
// @namespace    https://viayoo.com/p0krg2
// @version      3.3
// @description  修正Via阅读模式标题识别
// @author       DeepSeek & Grok
// @license      MIT
// @match        *://*/*
// @run-at       document-end
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    
    if (window.viaReaderTitleOptimized) return;
    window.viaReaderTitleOptimized = true;
    
    let lastProcessedTitle = '';
    
    function optimizeTitle() {
    // ==================== 核心：章节标题选择器（扩充至150+） ====================
    // 优先级排序：先精准匹配（如小说站点专属），后通用（如h1变体），再属性/模糊匹配
    const selectors = [
        // 1. 主流中文小说网站（起点、晋江、纵横、刺猬猫、SF等，约30个）
        'h1.chapter-title', '.chapter-title', '.chapter_name', '#chapterTitle', 
        '.book-chapter h1', '.read-content h1', '.article-title', '.chapterName',
        '.chapter-name', '.txt h1', '.bookname', '[class*="chapter"][class*="title"]',
        '[class*="title"][class*="chapter"]', '.novel-title', '.read-title',
        '.story-title', '.heading-title', '.chap-title', '.episode-title',
        '.section-title', '.book-chapter-title', '.novel-chapter h1', '.fiction-title',
        '.webnovel-title', '.lightnovel-chapter', '.fanfic-chapter', '.qidian-chapter',
        '.jjwxc-title', '.zongheng-chapter', '.ciweimao-title', '.sfacg-chapter',
        
        // 2. 国际/英文小说&漫画站点（Webtoon、AO3、Wattpad、RoyalRoad等，约20个）
        '.chapter-title-en', '.episode-name', '.comic-chapter', '.manga-title',
        '.fanfiction-title', '.archive-title', '.work-chapter', '.series-episode',
        '.wattpad-chapter', '.royalroad-title', '.scribblehub-chapter', '.tapas-episode',
        '.webtoon-title', '.manhwa-chapter', '.novelupdates-title', '.boxnovel-chapter',
        '.wuxiaworld-title', '.gravitytales-chapter', '.volarenovels-title', '.lnmtl-chapter',
        
        // 3. 博客&CMS系统（WordPress、Typecho、Hexo、Ghost、Medium等，约30个）
        'h1.entry-title', '.entry-title', '.post-title', '#post-title', 
        '.article-header h1', '.blog-post h1', '.md-title', '.hexo-title',
        '.typecho-title', '.ghost-header h1', '.medium-title', '.substack-title',
        '.newsletter-title', '.devto-title', '.hashnode-title', '.blogger-title',
        '.tumblr-post h1', '.wp-title', '.joomla-article h1', '.drupal-node-title',
        '.content-header h1', '.post-header h1', '.single-post-title', '.page-title',
        '.header-title', '.main-title', '.top-title', '.featured-title', 
        '.intro-title', '.summary-title',
        
        // 4. 论坛&社区（Reddit、Discourse、StackOverflow、Quora等变体，约20个）
        '.post-heading', '.topic-title', '.question-title', '.answer-title',
        '.forum-thread h1', '.discourse-title', '.reddit-post-title', '.quora-question',
        '.stackoverflow-title', '.thread-header h1', '.bbs-title', '.douban-topic',
        '.zhihu-question', '.baidu-tieba-title', '.v2ex-topic', '.nodebb-title',
        '.phpbb-thread', '.mybb-title', '.smf-topic', '.ipb-title',
        
        // 5. 通用高权重标题（h1/h2/h3变体，适用于大多数站点，约20个）
        'h1', 'h2.title', 'h3.heading', '.title', '#title', 
        '.main-heading', '.primary-title', '.secondary-title', '.top-heading',
        '.content-title', '.body-title', '.text-title', '.large-title',
        '.bold-title', '.italic-title', '.underline-title', '.centered-title',
        '.left-title', '.right-title', '.full-width-title',
        
        // 6. 属性&模糊选择器（兜底，针对动态/自定义class，约30个）
        '[data-title]', '[data-chapter-title]', '[itemprop="headline"]', 
        '[itemprop="name"]', '[role="heading"]', '[aria-label*="title"]',
        '[class*="title"]', '[class*="heading"]', '[class*="chapter"]',
        '[class*="episode"]', '[class*="section"]', '[class*="novel"]',
        '[class*="book"]', '[class*="story"]', '[class*="post"]',
        '[class*="article"]', '[class*="content"] h1', 'header h1',
        'article h1', 'section h1', 'div.title', 'span.title',
        '[id*="title"]', '[id*="chapter"]', '[id*="episode"]',
        '[id*="heading"]', '[data-role="title"]', '[data-type="chapter"]',
        '[data-name="title"]', '[contenteditable="true"] h1', // 编辑器变体
        
        // 7. 额外扩展（移动端/AMP/特殊布局，约10个，防遗漏）
        '.mobile-title', '.amp-title', '.responsive-heading', '.app-chapter',
        '.reader-mode-title', '.dark-mode-title', '.light-mode-title',
        '.fullscreen-title', '.popup-title', '.overlay-title'
    ];
    // =====================================================================
            
        let chapterTitle = '';
        let usedSelector = '';
        
        for (const selector of selectors) {
            const titleEl = document.querySelector(selector);
            if (titleEl && titleEl.textContent.trim()) {
                chapterTitle = titleEl.textContent.trim();
                usedSelector = selector;
                break;
            }
        }
        
        if (!chapterTitle) return;
        
        if (chapterTitle === lastProcessedTitle) return;
        
        // console.log(`[Via章节标题修正] 使用选择器 "${usedSelector}" 找到章节标题: "${chapterTitle}"`);
        
        const setOgmMeta = (property) => {
            let meta = document.querySelector(`meta[property="${property}"]`);
            if (!meta) {
                meta = document.createElement('meta');
                meta.setAttribute('property', property);
                document.head.appendChild(meta);
            }
            meta.setAttribute('content', chapterTitle);
        };
        
        setOgmMeta('og:title');
        setOgmMeta('twitter:title');
        
        lastProcessedTitle = chapterTitle;
        
        // console.log('[Via阅读模式标题修正] 已设置 og:title & twitter:title 标签');
    }
    
    optimizeTitle();
    
    new MutationObserver((mutations) => {
        for (const mutation of mutations) {
            if (mutation.type === 'childList' && mutation.addedNodes.length > 0) {
                optimizeTitle();
                break;
            }
        }
    }).observe(document.body, {
        childList: true,
        subtree: true
    });
})();