Douyin live stream optimization（优化网页）

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Douyin live stream optimization（优化网页）

优化直播间体验：删除指定div，屏蔽礼物特效（兼容三种结构），切换最高画质
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// ==UserScript==
// @name         Douyin live stream optimization（优化网页）
// @namespace    http://tampermonkey.net/
// @version      2.0
// @description  优化直播间体验：删除指定div，屏蔽礼物特效（兼容三种结构），切换最高画质
// @match        https://*.douyin.com/*
// @run-at       document-idle
// @grant        none
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';

    // 模拟点击函数，兼容 React/Vue
    function simulateClick(el) {
        if(!el) return;
        el.scrollIntoView({behavior: 'smooth', block: 'center'});
        ['mousedown', 'mouseup', 'click'].forEach(type => {
            const event = new MouseEvent(type, {view: window, bubbles: true, cancelable: true, composed: true});
            el.dispatchEvent(event);
        });
        console.log('模拟点击元素:', el);
    }

    // 删除指定元素并按B键（延迟5秒）
    function removeElementsAndPressB() {
        let removed = false;

        // 删除 class 元素
        document.querySelectorAll('div.aqK_4_5U.R7IW3rpb').forEach(el => {
            console.log('删除 class 元素:', el);
            el.remove();
            removed = true;
        });

        // 删除 BottomLayout
        const bottomLayout = document.getElementById('BottomLayout');
        if(bottomLayout){
            console.log('删除 BottomLayout 元素:', bottomLayout);
            bottomLayout.remove();
            removed = true;
        }

        // 删除额外 class 元素
        const extraEl = document.querySelector('div._D4WLewc.GDP2iTsQ');
        if(extraEl){
            console.log('删除额外元素:', extraEl);
            extraEl.remove();
            removed = true;
        }

        // 删除后延迟5秒按B键
        if(removed){
            setTimeout(() => {
                console.log('触发键盘B');
                const event = new KeyboardEvent('keydown', {key: 'b', code: 'KeyB', keyCode: 66, which: 66, bubbles: true, cancelable: true});
                document.dispatchEvent(event);
            }, 5000);
        }
    }

    // 循环检测并屏蔽礼物特效（兼容三种结构）
    function monitorGiftEffect() {
        setInterval(() => {
            const elements = Array.from(document.querySelectorAll(
                'div.WoNKVQmY.Z20k_Nsy, div.OwaHUR7p.M3rvLCL0, div.PyUjXuWV.hRnC6O2k'
            )).filter(div => div.textContent.includes('礼物特效'));

            elements.forEach(el => {
                const stateText = el.textContent.trim();
                console.log('当前礼物特效状态:', stateText);

                const switchBtn = el.parentElement?.querySelector('div[data-e2e="effect-switch"]');
                if(switchBtn && stateText === '屏蔽礼物特效'){
                    simulateClick(switchBtn);
                    console.log('自动点击屏蔽礼物特效');
                }
            });
        }, 1000);
    }

    // 循环切换到最高画质
    function switchToHighestQualityLoop() {
        const currentEl = document.querySelector('div[data-e2e="quality"]');
        const selector = document.querySelector('div[data-e2e="quality-selector"]');
        if(!currentEl || !selector) {
            setTimeout(switchToHighestQualityLoop, 500);
            return;
        }

        const currentQuality = currentEl.textContent.trim();
        const priority = ['原画','超清','高清','标清','自动(标清)'];
        const highest = priority[0];

        if(currentQuality === highest){
            console.log('已切换到最高画质:', currentQuality);
            return;
        }

        const options = Array.from(selector.querySelectorAll('div.D7UhJyco'));
        const target = options.find(el => el.textContent.trim() === highest);
        if(target){
            const clickable = target.closest('div.PAeJVT8Y');
            if(clickable){
                simulateClick(clickable);
                console.log('正在切换到最高画质:', highest);
            }
        }

        setTimeout(switchToHighestQualityLoop, 500);
    }

    // 主函数，每 3 秒轮询
    function main() {
        // 检测是否在直播间
        const liveFlag = document.querySelector('div.CkKPEcld, div.ej6cQnWN');
        if(!liveFlag){
            //console.log('未检测到直播间标志元素，脚本跳过执行');
            return; // 不在直播间，跳过
        }

        removeElementsAndPressB();
        monitorGiftEffect();
        switchToHighestQualityLoop();
    }

    // SPA URL 支持
    let lastUrl = location.href;
    setInterval(() => {
        if(location.href !== lastUrl){
            console.log('检测到 URL 改变:', location.href);
            lastUrl = location.href;
            main();
        }
    }, 500);

    // 每 3 秒轮询 main
    setInterval(main, 3000);

    // MutationObserver 监听动态生成元素
    const observer = new MutationObserver(() => {
        removeElementsAndPressB();
    });
    observer.observe(document.body, {childList: true, subtree: true});

})();