// ==UserScript==
// @name         新浪彩票去广告去注册登录去付费
// @namespace    https://lotto.sina.cn/
// @version      1.1
// @description  去除新浪彩票网站的广告横幅、弹窗广告、登录注册弹窗、付费阅读限制等干扰元素
// @author       WorkBuddy
// @match        *://lotto.sina.cn/*
// @match        *://sports.sina.com.cn/lottery/*
// @match        *://*.sina.com.cn/*lottery*
// @grant        none
// @run-at       document-start
// ==/UserScript==

(function() {
    'use strict';

    // 需要隐藏的元素选择器列表
    const HIDE_SELECTORS = [
        // 通用广告弹窗
        '.popup-ad',
        '.ad-popup',
        '[class*="ad-"]',
        '[class*="advertisement"]',
        '[id*="ad-"]',
        '[id*="advertisement"]',

        // 登录注册弹窗
        '.login-popup',
        '.login-modal',
        '.login-box',
        '.register-popup',
        '.register-modal',
        '.register-box',
        '.signin-popup',
        '.signup-popup',
        '[class*="login-box"]',
        '[class*="login-modal"]',
        '[class*="login-dialog"]',
        '[class*="login-modal"]',
        '[class*="register-modal"]',
        '[class*="signup"]',
        '[id*="login-popup"]',
        '[id*="login-modal"]',
        '[id*="login-box"]',
        '[id*="register-popup"]',
        '[id*="register-modal"]',

        // 浮动广告
        '.float-ad',
        '.floating-ad',
        '.float-banner',
        '.suspension-ad',
        '[class*="float-"]',
        '[class*="suspension"]',
        '[class*="fixed-ad"]',

        // 横幅广告
        '.banner-ad',
        '.top-ad',
        '.bottom-ad',
        '[class*="banner-"]',
        '[class*="top-banner"]',
        '[class*="bottom-banner"]',

        // 弹窗遮罩
        '.modal-backdrop',
        '.modal-overlay',
        '.popup-overlay',
        '.mask-layer',
        '[class*="modal-backdrop"]',
        '[class*="modal-overlay"]',

        // 推广下载
        '.app-download',
        '.download-popup',
        '[class*="app-download"]',
        '[class*="download-"]',

        // iframe广告
        'iframe[src*="ad"]',
        'iframe[src*="banner"]',
        'iframe[src*="promotion"]',
        'iframe[src*="sina.com.cn"][width="300"]',
        'iframe[src*="sina.com.cn"][height="250"]',

        // 右侧悬浮
        '.right-float',
        '.left-float',
        '[class*="right-float"]',
        '[class*="left-float"]',

        // 通知弹窗
        '.toast',
        '.notification-popup',
        '[class*="toast-"]',
        '[class*="notification-"]',

        // 关闭按钮关联的弹窗
        '.pop-close',
        '.close-popup',
        '[class*="close-btn"]',

        // 视频广告
        '.video-ad',
        '[class*="video-ad"]',
        '[class*="preroll"]',

        // 推送通知弹窗
        '.push-notification',
        '[class*="push-notif"]',
        '[class*="subscribe-"]',

        // 调查问卷
        '.survey-popup',
        '[class*="survey-"]',

        // 新浪通行证登录
        '.sina-login',
        '#SI_FLY_LOGIN',
        '[id*="passport"]',
        '[id*="sinaSSO"]',
        '[class*="SSO"]',

        // 新浪爱彩登录
        '.aicai-login',
        '[class*="aicai-login"]',
        '[id*="aicai"]',

        // 通用弹窗类
        '.dialog',
        '.dialog-popup',
        '.layer-popup',
        '[class*="layer-popup"]',
        '[class*="pop-dialog"]',

        // 页面遮罩
        '#page-mask',
        '.page-mask',
        '[class*="page-mask"]',
        '[id*="mask"]',
    ];

    // 要隐藏的CSS类名模式（正则）
    const HIDE_CLASS_PATTERNS = [
        /ad-/i,
        /advertisement/i,
        /popup/i,
        /modal/i,
        /dialog/i,
        /float/i,
        /banner/i,
        /overlay/i,
        /mask/i,
        /login/i,
        /register/i,
        /signin/i,
        /signup/i,
        /suspension/i,
        /toast/i,
        /notification/i,
        /download/i,
        /preroll/i,
        /survey/i,
        /layer/i,
        /passport/i,
        /SSO/i,
        /aicai/i,
    ];

    // 需要移除的DOM元素ID模式
    const REMOVE_ID_PATTERNS = [
        /ad/i,
        /popup/i,
        /modal/i,
        /dialog/i,
        /float/i,
        /banner/i,
        /login/i,
        /register/i,
        /signin/i,
        /signup/i,
        /mask/i,
        /overlay/i,
        /layer/i,
        /passport/i,
        /sinaSSO/i,
        /aicai/i,
    ];

    // 日志开关
    const DEBUG = false;
    const log = DEBUG ? console.log.bind(console, '[SinaLottery Cleaner]') : function() {};

    /**
     * 隐藏指定选择器的元素
     */
    function hideElements() {
        HIDE_SELECTORS.forEach(selector => {
            try {
                const elements = document.querySelectorAll(selector);
                elements.forEach(el => {
                    if (el && el.style.display !== 'none') {
                        el.style.display = 'none';
                        log('隐藏元素:', selector);
                    }
                });
            } catch (e) {
                // 无效选择器，忽略
            }
        });
    }

    /**
     * 根据类名模式隐藏元素
     */
    function hideByClassPatterns() {
        const allElements = document.querySelectorAll('*');
        allElements.forEach(el => {
            if (el.className && typeof el.className === 'string') {
                const classes = el.className.split(/\s+/);
                for (const cls of classes) {
                    for (const pattern of HIDE_CLASS_PATTERNS) {
                        if (pattern.test(cls)) {
                            el.style.display = 'none';
                            log('隐藏匹配类名的元素:', cls);
                            break;
                        }
                    }
                }
            }
        });
    }

    /**
     * 根据ID模式移除元素
     */
    function removeByIdPatterns() {
        const allElements = document.querySelectorAll('*');
        allElements.forEach(el => {
            if (el.id) {
                for (const pattern of REMOVE_ID_PATTERNS) {
                    if (pattern.test(el.id)) {
                        el.style.display = 'none';
                        log('隐藏匹配ID的元素:', el.id);
                        break;
                    }
                }
            }
        });
    }

    /**
     * 隐藏新浪通行证相关元素
     */
    function hideSinaPassport() {
        const passportElements = [
            '#SI_FLY_LOGIN',
            '#SI_Fly_ZDCard',
            '.sina-login-wrap',
            '.sina-login-content',
            '[id*="sinaSSO"]',
            '[id*="passport"]',
            '[class*="sina-login"]',
            '[class*="passport-login"]',
            'iframe[src*="passport"]',
            'iframe[src*="sinaSSO"]',
        ];

        passportElements.forEach(selector => {
            try {
                const elements = document.querySelectorAll(selector);
                elements.forEach(el => {
                    el.style.display = 'none';
                    log('隐藏新浪通行证元素:', selector);
                });
            } catch (e) {
                // 忽略无效选择器
            }
        });
    }

    /**
     * 隐藏常见的弹窗和遮罩
     */
    function hidePopupsAndOverlays() {
        // 隐藏所有遮罩层
        const overlays = document.querySelectorAll('[class*="mask"], [class*="overlay"], [class*="backdrop"]');
        overlays.forEach(el => {
            const tagName = el.tagName.toLowerCase();
            // 跳过body和html
            if (tagName === 'body' || tagName === 'html') return;
            el.style.display = 'none';
        });

        // 隐藏可能的弹窗内容
        const popups = document.querySelectorAll('[class*="popup-content"], [class*="dialog-content"], [class*="modal-content"]');
        popups.forEach(el => {
            // 检查父元素是否是弹窗
            let parent = el.parentElement;
            let isPopup = false;
            while (parent && parent !== document.body) {
                if (parent.className && typeof parent.className === 'string') {
                    if (/popup|dialog|modal|layer/i.test(parent.className)) {
                        isPopup = true;
                        break;
                    }
                }
                parent = parent.parentElement;
            }
            if (isPopup) {
                el.style.display = 'none';
            }
        });
    }

    /**
     * 隐藏iframe广告
     */
    function hideIframeAds() {
        const iframes = document.querySelectorAll('iframe');
        iframes.forEach(iframe => {
            const src = iframe.src || '';
            // 隐藏包含广告相关URL的iframe
            if (/ad|banner|promotion|cpc|cpm|display/i.test(src)) {
                iframe.style.display = 'none';
                log('隐藏广告iframe:', src);
            }
            // 隐藏尺寸为典型广告尺寸的iframe
            const width = parseInt(iframe.width) || 0;
            const height = parseInt(iframe.height) || 0;
            if ((width === 300 && height === 250) || // 中矩形
                (width === 728 && height === 90) ||  // 横幅
                (width === 160 && height === 600) || // 宽幅 skyscraper
                (width === 300 && height === 600) ||  // 半页
                (width === 320 && height === 50)) {   // 移动端横幅
                iframe.style.display = 'none';
                log('隐藏典型广告尺寸iframe:', width + 'x' + height);
            }
        });
    }

    /**
     * 隐藏新浪爱彩相关弹窗
     */
    function hideAicaiPopups() {
        const aicaiSelectors = [
            '[class*="aicai-login"]',
            '[class*="aicai-popup"]',
            '[class*="aicai-modal"]',
            '[id*="aicai-login"]',
            '[id*="aicai-popup"]',
            '[id*="aicai-modal"]',
            '.aicai-dialog',
            '#aicai-dialog',
            '[class*="ac-login"]',
            '[id*="ac-login"]',
        ];

        aicaiSelectors.forEach(selector => {
            try {
                const elements = document.querySelectorAll(selector);
                elements.forEach(el => {
                    el.style.display = 'none';
                    log('隐藏爱彩相关元素:', selector);
                });
            } catch (e) {
                // 忽略无效选择器
            }
        });
    }

    /**
     * 隐藏通知和提示
     */
    function hideNotifications() {
        const notificationSelectors = [
            '.toast-container',
            '.notification-container',
            '[class*="toast-"]',
            '[class*="notification-"]',
            '.tip-popup',
            '[class*="tip-"]',
            '.guide-tip',
            '[class*="guide-"]',
            '.welcome-tip',
            '[class*="welcome-"]',
        ];

        notificationSelectors.forEach(selector => {
            try {
                const elements = document.querySelectorAll(selector);
                elements.forEach(el => {
                    el.style.display = 'none';
                    log('隐藏通知元素:', selector);
                });
            } catch (e) {
                // 忽略无效选择器
            }
        });
    }

    /**
     * 去除付费阅读限制
     */
    function removePaywall() {
        log('开始去除付费限制...');

        // 付费墙/付费提示选择器
        const paywallSelectors = [
            // 通用付费墙
            '.paywall',
            '.pay-wall',
            '.paywall-overlay',
            '.paywall-mask',
            '.paywall-box',
            '.paywall-container',
            '.paywall-content',
            '[class*="paywall"]',
            '[class*="pay-wall"]',
            '[id*="paywall"]',
            '[id*="pay-wall"]',

            // 付费提示
            '.pay-tip',
            '.pay-notice',
            '.pay-hint',
            '.pay-info',
            '.paid-content',
            '.pay-required',
            '[class*="pay-tip"]',
            '[class*="pay-notice"]',
            '[class*="pay-hint"]',

            // 订阅提示
            '.subscribe-tip',
            '.subscribe-notice',
            '.subscription-tip',
            '.vip-tip',
            '.vip-notice',
            '[class*="subscribe-tip"]',
            '[class*="subscription"]',
            '[class*="vip-tip"]',

            // 充值提示
            '.recharge-tip',
            '.coin-tip',
            '.credit-tip',
            '[class*="recharge"]',
            '[class*="coin-tip"]',

            // 登录付费混合
            '.login-pay',
            '.login-to-read',
            '.login-to-view',
            '[class*="login-to-read"]',
            '[class*="login-to-view"]',

            // 正文付费遮罩（渐变模糊遮罩）
            '.article-content-cover',
            '.content-cover',
            '.text-cover',
            '.read-more-cover',
            '[class*="content-cover"]',
            '[class*="article-cover"]',

            // 全文阅读限制
            '.full-text',
            '.read-more',
            '.view-full',
            '[class*="read-more"]',
            '[class*="view-more"]',

            // 付费弹窗
            '.pay-popup',
            '.pay-modal',
            '.pay-dialog',
            '[class*="pay-popup"]',
            '[class*="pay-modal"]',

            // 新浪爱彩付费
            '.aicai-pay',
            '.ac-pay',
            '[class*="aicai-pay"]',
            '[class*="ac-pay"]',
            '[id*="aicai-pay"]',

            // 赞赏/打赏提示
            '.reward-tip',
            '.reward-notice',
            '[class*="reward-tip"]',
            '[class*="donate"]',

            // 付费图标
            '.pay-icon',
            '.vip-icon',
            '.lock-icon',
            '[class*="lock-icon"]',
        ];

        paywallSelectors.forEach(selector => {
            try {
                const elements = document.querySelectorAll(selector);
                elements.forEach(el => {
                    el.style.display = 'none';
                    log('隐藏付费元素:', selector);
                });
            } catch (e) {
                // 忽略无效选择器
            }
        });

        // 移除付费遮罩的渐变效果
        const gradientSelectors = [
            '[style*="gradient"]',
            '[style*="mask-image"]',
            '[style*="-webkit-mask-image"]',
            '[style*="blur"]',
        ];

        gradientSelectors.forEach(selector => {
            try {
                const elements = document.querySelectorAll(selector);
                elements.forEach(el => {
                    const style = el.getAttribute('style') || '';
                    if (/gradient|blur|mask/i.test(style)) {
                        el.style.background = '';
                        el.style.backgroundImage = '';
                        el.style.webkitMaskImage = '';
                        el.style.maskImage = '';
                        el.style.filter = '';
                        log('移除遮罩样式');
                    }
                });
            } catch (e) {
                // 忽略
            }
        });

        // 移除内容高度限制（付费墙常用技巧：限制内容高度 + 遮罩）
        const contentRestricted = document.querySelectorAll('[style*="height"][style*="overflow"]');
        contentRestricted.forEach(el => {
            const style = el.getAttribute('style') || '';
            if (/height:\s*\d+px|height:\s*\d+em/i.test(style)) {
                el.style.maxHeight = 'none';
                el.style.height = 'auto';
                el.style.overflow = 'visible';
                log('移除内容高度限制');
            }
        });

        // 移除带有付费限制类的元素的样式限制
        const restrictedElements = document.querySelectorAll('[class*="restricted"], [class*="limit"], [class*="locked"]');
        restrictedElements.forEach(el => {
            el.style.maxHeight = 'none';
            el.style.height = 'auto';
            el.style.overflow = 'visible';
            log('移除限制样式');
        });

        // 处理正文内容容器 - 移除 overflow: hidden
        const articleContents = document.querySelectorAll('.article-content, .article-body, .article-text, .content-body, [class*="article-body"], [class*="content-body"]');
        articleContents.forEach(el => {
            const computedStyle = window.getComputedStyle(el);
            if (computedStyle.overflow === 'hidden' || computedStyle.maxHeight) {
                el.style.maxHeight = 'none';
                el.style.overflow = 'visible';
                log('处理正文容器');
            }
        });

        // 移除付费提示文字（节点内容检测）
        const payKeywords = ['付费', '购买', '订阅', 'VIP', '充值', '查看全文', '阅读更多', '解锁', '付费阅读', '购买全文', '订阅查看', '此内容付费可见', '登录后阅读', '登录查看完整内容'];
        const textNodes = document.evaluate(
            '//text()[contains(., "付费") or contains(., "购买") or contains(., "订阅") or contains(., "VIP") or contains(., "充值") or contains(., "查看全文")]',
            document.body,
            null,
            XPathResult.UNORDERED_NODE_SNAPSHOT_TYPE,
            null
        );

        for (let i = 0; i < textNodes.snapshotLength; i++) {
            const node = textNodes.snapshotItem(i);
            if (node.parentElement && !['SCRIPT', 'STYLE', 'NOSCRIPT'].includes(node.parentElement.tagName)) {
                const parent = node.parentElement;
                const parentClass = (parent.className || '').toLowerCase();
                const parentId = (parent.id || '').toLowerCase();

                // 如果父元素有付费相关类名，隐藏整个元素
                if (/pay|wall|subscribe|vip|restricted|locked|tip|notice|cover|mask|overlay/i.test(parentClass + parentId)) {
                    if (parent.style.display !== 'none') {
                        parent.style.display = 'none';
                        log('隐藏付费提示元素');
                    }
                }
            }
        }

        log('付费限制去除完成');
    }

    /**
     * 执行所有清理操作
     */
    function cleanPage() {
        log('开始清理页面...');
        hideElements();
        hideByClassPatterns();
        removeByIdPatterns();
        hideSinaPassport();
        hidePopupsAndOverlays();
        hideIframeAds();
        hideAicaiPopups();
        hideNotifications();
        removePaywall();  // 去除付费限制
        log('页面清理完成');
    }

    /**
     * 创建 MutationObserver 监听 DOM 变化
     */
    function setupObserver() {
        let debounceTimer = null;

        const observer = new MutationObserver((mutations) => {
            // 防抖处理
            clearTimeout(debounceTimer);
            debounceTimer = setTimeout(() => {
                // 检查是否有显著的变化
                let hasSignificantChange = false;
                for (const mutation of mutations) {
                    if (mutation.addedNodes.length > 0) {
                        for (const node of mutation.addedNodes) {
                            if (node.nodeType === Node.ELEMENT_NODE) {
                                hasSignificantChange = true;
                                break;
                            }
                        }
                    }
                    if (hasSignificantChange) break;
                }

                if (hasSignificantChange) {
                    cleanPage();
                }
            }, 100);
        });

        // 配置观察者
        const config = {
            childList: true,
            subtree: true
        };

        // 开始观察
        observer.observe(document.documentElement, config);
        log('MutationObserver 已启动');

        return observer;
    }

    /**
     * 主函数
     */
    function main() {
        log('脚本开始执行');

        // 页面加载时执行清理
        cleanPage();

        // 设置 MutationObserver 监听动态内容
        setupObserver();

        // 定时清理（备用方案）
        setInterval(cleanPage, 3000);

        // 监听常见的弹窗触发事件
        document.addEventListener('click', (e) => {
            // 阻止可能触发登录的点击
            const target = e.target;
            if (target.tagName === 'A' || target.tagName === 'BUTTON') {
                const text = (target.textContent || '').toLowerCase();
                const className = (target.className || '').toLowerCase();
                const id = (target.id || '').toLowerCase();

                // 如果点击的是登录/注册按钮，记录日志但不阻止
                if (/login|登录|signin|register|注册|signup/i.test(text + className + id)) {
                    log('检测到登录/注册相关点击:', text);
                }
            }
        }, true);

        log('脚本初始化完成');
    }

    // 页面加载完成后执行
    if (document.readyState === 'loading') {
        document.addEventListener('DOMContentLoaded', main);
    } else {
        main();
    }
})();