// ==UserScript==
// @name         网页调用MPV播放（视频页面专用版）
// @namespace    http://tampermonkey.net/
// @version      4.8
// @description  在视频页面左下角添加播放/设置按钮，全屏时自动隐藏，支持油猴菜单打开设置
// @author       DeepSeek
// @match        *://*/*
// @grant        GM_getValue
// @grant        GM_setValue
// @grant        GM_registerMenuCommand
// @run-at       document-end
// @license      MIT
// @downloadURL none
// ==/UserScript==

(function() {
    'use strict';

    const DEBUG = true;
    function log(...args) {
        if (DEBUG) console.log('[MPV脚本]', ...args);
    }

    // 默认匹配规则（仅B站和YouTube）
    const defaultRules = [
        'https://www.bilibili.com/video/',
        'https://www.youtube.com/watch'
    ];

    let config = {
        mpvProtocol: GM_getValue('mpvProtocol', 'mpv://'),
        customArgs: GM_getValue('customArgs', ''),
        urlRules: GM_getValue('urlRules', defaultRules)
    };

    let currentPlayBtn = null;
    let currentSettingBtn = null;
    let lastUrl = '';
    let observer = null;
    let urlCheckInterval = null;
    let settingWindowOpen = false;

    // 判断当前页面是否匹配任意规则
    function isVideoPage() {
        const currentUrl = window.location.href;
        if (!config.urlRules || config.urlRules.length === 0) return false;

        return config.urlRules.some(rule => {
            if (!rule) return false;
            if (rule.startsWith('/') && rule.endsWith('/')) {
                try {
                    const regex = new RegExp(rule.slice(1, -1));
                    return regex.test(currentUrl);
                } catch(e) {
                    log('无效的正则表达式:', rule);
                    return false;
                }
            }
            return currentUrl.startsWith(rule);
        });
    }

    // 全屏状态变化处理
    function handleFullscreenChange() {
        const isFullscreen = !!(document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement);
        if (currentPlayBtn && currentSettingBtn) {
            if (isFullscreen) {
                currentPlayBtn.style.display = 'none';
                currentSettingBtn.style.display = 'none';
                log('全屏模式，按钮已隐藏');
            } else {
                currentPlayBtn.style.display = 'flex';
                currentSettingBtn.style.display = 'flex';
                log('退出全屏，按钮已恢复');
            }
        }
    }

    // 注册全屏事件监听（兼容各浏览器）
    function addFullscreenListener() {
        const events = ['fullscreenchange', 'webkitfullscreenchange', 'mozfullscreenchange', 'MSFullscreenChange'];
        events.forEach(event => {
            document.addEventListener(event, handleFullscreenChange);
        });
    }

    function createPlayButton() {
        const btn = document.createElement('button');
        btn.textContent = '▶';
        btn.title = '用MPV播放当前页面视频';
        btn.style.cssText = `
            position: fixed;
            bottom: 20px;
            left: 20px;
            z-index: 999999;
            width: 48px;
            height: 48px;
            background: #a855f7;
            color: white;
            border: none;
            border-radius: 50%;
            cursor: pointer;
            font-size: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 8px rgba(0,0,0,0.3);
            transition: all 0.2s ease;
        `;
        btn.addEventListener('mouseenter', () => {
            btn.style.transform = 'scale(1.05)';
            btn.style.background = '#c084fc';
        });
        btn.addEventListener('mouseleave', () => {
            btn.style.transform = 'scale(1)';
            btn.style.background = '#a855f7';
        });
        btn.addEventListener('click', playWithMPV);
        return btn;
    }

    function createSettingButton() {
        const btn = document.createElement('button');
        btn.textContent = '⚙️';
        btn.title = 'MPV播放设置';
        btn.style.cssText = `
            position: fixed;
            bottom: 20px;
            left: 76px;
            z-index: 999999;
            background: transparent;
            border: none;
            cursor: pointer;
            font-size: 28px;
            padding: 6px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.2s ease;
            color: #4b5563;
            filter: drop-shadow(0 1px 2px rgba(0,0,0,0.2));
        `;
        btn.addEventListener('mouseenter', () => {
            btn.style.transform = 'scale(1.1)';
            btn.style.color = '#a855f7';
        });
        btn.addEventListener('mouseleave', () => {
            btn.style.transform = 'scale(1)';
            btn.style.color = '#4b5563';
        });
        btn.addEventListener('click', openSetting);
        return btn;
    }

    function removeButtons() {
        if (currentPlayBtn && currentPlayBtn.isConnected) currentPlayBtn.remove();
        if (currentSettingBtn && currentSettingBtn.isConnected) currentSettingBtn.remove();
        currentPlayBtn = null;
        currentSettingBtn = null;
        log('按钮已移除');
    }

    function addButtons() {
        if (!document.body) {
            log('body未就绪，等待...');
            return false;
        }
        if (!isVideoPage()) {
            removeButtons();
            return false;
        }
        if (currentPlayBtn && currentSettingBtn) {
            if (!currentPlayBtn.isConnected || !currentSettingBtn.isConnected) {
                log('按钮存在但不在DOM中，重新添加');
                currentPlayBtn = null;
                currentSettingBtn = null;
            } else {
                return true;
            }
        }
        removeButtons();
        currentPlayBtn = createPlayButton();
        currentSettingBtn = createSettingButton();
        document.body.appendChild(currentPlayBtn);
        document.body.appendChild(currentSettingBtn);
        // 添加后立即检查当前全屏状态，防止全屏时按钮显示
        handleFullscreenChange();
        log('按钮已添加到左下角');
        return true;
    }

    let updateTimer = null;
    function updateUI() {
        if (updateTimer) clearTimeout(updateTimer);
        updateTimer = setTimeout(() => {
            const currentUrl = window.location.href;
            if (currentUrl !== lastUrl) {
                lastUrl = currentUrl;
                log('URL变化:', currentUrl);
            }
            addButtons();
        }, 200);
    }

    function observePageChanges() {
        window.addEventListener('popstate', updateUI);
        window.addEventListener('hashchange', updateUI);
        const originalPushState = history.pushState;
        const originalReplaceState = history.replaceState;
        history.pushState = function() {
            originalPushState.apply(this, arguments);
            updateUI();
        };
        history.replaceState = function() {
            originalReplaceState.apply(this, arguments);
            updateUI();
        };
        if (urlCheckInterval) clearInterval(urlCheckInterval);
        urlCheckInterval = setInterval(() => {
            if (window.location.href !== lastUrl) {
                log('定时器检测到URL变化');
                updateUI();
            }
        }, 1000);
        if (observer) observer.disconnect();
        observer = new MutationObserver(() => {
            if (document.body && isVideoPage() && (!currentPlayBtn || !currentPlayBtn.isConnected)) {
                log('检测到body变化，尝试重新添加按钮');
                addButtons();
            }
        });
        observer.observe(document.documentElement, { childList: true, subtree: true });
        updateUI();
        // 注册全屏事件监听
        addFullscreenListener();
    }

    function playWithMPV() {
        try {
            const pageUrl = window.location.href;
            let callUrl = config.mpvProtocol + pageUrl;
            if (config.customArgs) {
                callUrl += ' ' + config.customArgs;
            }
            window.open(callUrl);
            log('调用MPV:', callUrl);
        } catch(e) {
            alert("调用失败: " + e.message + "\n请先完成协议注册！");
        }
    }

    // 辅助函数：下载文件
    function downloadFile(content, filename) {
        const windowsContent = content.replace(/\r?\n/g, '\r\n');
        const blob = new Blob([windowsContent], { type: 'text/plain' });
        const url = URL.createObjectURL(blob);
        const a = document.createElement('a');
        a.href = url;
        a.download = filename;
        document.body.appendChild(a);
        a.click();
        document.body.removeChild(a);
        URL.revokeObjectURL(url);
    }

    // 全局设置窗口函数
    function openSetting() {
        if (settingWindowOpen) return;
        settingWindowOpen = true;

        let tempProtocol = config.mpvProtocol;
        let tempArgs = config.customArgs;
        let tempRules = [...config.urlRules];

        const mask = document.createElement('div');
        mask.style.cssText = `
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.6);
            z-index: 1000000;
            display: flex;
            align-items: center;
            justify-content: center;
        `;

        const win = document.createElement('div');
        win.style.cssText = `
            background: white;
            padding: 24px;
            border-radius: 20px;
            width: 550px;
            max-width: 90%;
            max-height: 85vh;
            overflow-y: auto;
            box-shadow: 0 20px 35px rgba(0,0,0,0.3);
            font-family: system-ui, -apple-system, sans-serif;
        `;

        // 标题
        const title = document.createElement('h2');
        title.textContent = '⚙️ MPV播放设置';
        title.style.cssText = 'margin-top:0; margin-bottom:16px; font-size:22px; color:#1f2937;';
        win.appendChild(title);

        // 协议前缀
        const protocolDiv = document.createElement('div');
        protocolDiv.style.marginBottom = '20px';
        const protocolLabel = document.createElement('label');
        protocolLabel.textContent = 'MPV自定义协议前缀';
        protocolLabel.style.cssText = 'display:block; margin-bottom:8px; font-weight:500; color:#374151;';
        const protocolInput = document.createElement('input');
        protocolInput.type = 'text';
        protocolInput.value = tempProtocol;
        protocolInput.style.cssText = 'width:100%; padding:10px; border:1px solid #d1d5db; border-radius:10px; font-size:14px;';
        const protocolHint = document.createElement('p');
        protocolHint.textContent = '默认 mpv://，需先注册协议（注册方法见下方）';
        protocolHint.style.cssText = 'font-size:12px; color:#6b7280; margin:6px 0 0;';
        protocolDiv.appendChild(protocolLabel);
        protocolDiv.appendChild(protocolInput);
        protocolDiv.appendChild(protocolHint);
        win.appendChild(protocolDiv);

        // 自定义参数
        const argsDiv = document.createElement('div');
        argsDiv.style.marginBottom = '20px';
        const argsLabel = document.createElement('label');
        argsLabel.textContent = '自定义MPV启动参数';
        argsLabel.style.cssText = 'display:block; margin-bottom:8px; font-weight:500; color:#374151;';
        const argsInput = document.createElement('input');
        argsInput.type = 'text';
        argsInput.value = tempArgs;
        argsInput.style.cssText = 'width:100%; padding:10px; border:1px solid #d1d5db; border-radius:10px; font-size:14px;';
        const argsHint = document.createElement('p');
        argsHint.textContent = '注意：当前VBS协议处理脚本不支持额外参数。如需参数，请修改 mpv_protocol_handler.vbs 或在 mpv.conf 中设置。';
        argsHint.style.cssText = 'font-size:12px; color:#ef4444; margin:6px 0 0;';
        argsDiv.appendChild(argsLabel);
        argsDiv.appendChild(argsInput);
        argsDiv.appendChild(argsHint);
        win.appendChild(argsDiv);

        // URL匹配规则管理
        const rulesDiv = document.createElement('div');
        rulesDiv.style.marginBottom = '20px';
        const rulesLabel = document.createElement('label');
        rulesLabel.textContent = '🌐 视频页面匹配规则（URL前缀或正则）';
        rulesLabel.style.cssText = 'display:block; margin-bottom:8px; font-weight:500; color:#374151;';
        const rulesContainer = document.createElement('div');
        rulesContainer.id = 'rulesContainer';
        rulesContainer.style.cssText = 'background:#f9fafb; border:1px solid #e5e7eb; border-radius:12px; padding:8px 12px; max-height:200px; overflow-y:auto; margin-bottom:12px;';
        const addDiv = document.createElement('div');
        addDiv.style.cssText = 'display:flex; gap:8px; margin-top:4px;';
        const newRuleInput = document.createElement('input');
        newRuleInput.type = 'text';
        newRuleInput.placeholder = '例如: https://www.bilibili.com/video/  或 /\\/watch\\?v=/';
        newRuleInput.style.cssText = 'flex:1; padding:8px 12px; border:1px solid #d1d5db; border-radius:10px; font-size:14px;';
        const addRuleBtn = document.createElement('button');
        addRuleBtn.textContent = '添加';
        addRuleBtn.style.cssText = 'background:#a855f7; color:white; border:none; border-radius:10px; padding:0 16px; cursor:pointer; font-size:14px;';
        addDiv.appendChild(newRuleInput);
        addDiv.appendChild(addRuleBtn);
        const rulesHint = document.createElement('p');
        rulesHint.textContent = '支持URL前缀（字符串开头匹配）或正则表达式（用 / / 包裹）。当前页面URL匹配任意一条即显示按钮。';
        rulesHint.style.cssText = 'font-size:12px; color:#6b7280; margin:8px 0 0;';
        rulesDiv.appendChild(rulesLabel);
        rulesDiv.appendChild(rulesContainer);
        rulesDiv.appendChild(addDiv);
        rulesDiv.appendChild(rulesHint);
        win.appendChild(rulesDiv);

        // 刷新按钮
        const refreshBtn = document.createElement('button');
        refreshBtn.textContent = '🔄 立即刷新按钮显示';
        refreshBtn.style.cssText = 'background:#10b981; color:white; border:none; border-radius:10px; padding:8px 16px; cursor:pointer; font-size:14px; width:100%; margin-bottom:20px;';
        refreshBtn.onclick = () => {
            addButtons();
            alert('已尝试重新添加按钮，请检查左下角。如果仍未出现，请刷新页面重试。');
        };
        win.appendChild(refreshBtn);

        // 底部按钮（取消/保存）
        const btnDiv = document.createElement('div');
        btnDiv.style.cssText = 'display:flex; gap:12px; justify-content:flex-end; margin-bottom:20px;';
        const cancelBtn = document.createElement('button');
        cancelBtn.textContent = '取消';
        cancelBtn.style.cssText = 'padding:8px 18px; border:1px solid #cbd5e1; background:white; border-radius:10px; cursor:pointer; font-size:14px;';
        const saveBtn = document.createElement('button');
        saveBtn.textContent = '保存设置';
        saveBtn.style.cssText = 'padding:8px 18px; background:#2563eb; color:white; border:none; border-radius:10px; cursor:pointer; font-size:14px;';
        btnDiv.appendChild(cancelBtn);
        btnDiv.appendChild(saveBtn);
        win.appendChild(btnDiv);

        // 协议注册说明（带下载按钮）
        const regDiv = document.createElement('div');
        regDiv.style.cssText = 'padding:14px; background:#f8fafc; border-radius:12px; margin-bottom:24px; font-size:13px; border-left:4px solid #a855f7;';

        const regTitle = document.createElement('b');
        regTitle.textContent = '🔧 首次使用注册协议（Windows）';
        regTitle.style.color = '#1e293b';
        regDiv.appendChild(regTitle);

        const step1 = document.createElement('div');
        step1.textContent = '1. 在 MPV 安装目录（与 mpv.exe 相同）下创建两个文件（可点击按钮下载）：';
        step1.style.marginTop = '8px';
        regDiv.appendChild(step1);

        // 文件1
        const file1Container = document.createElement('div');
        file1Container.style.cssText = 'display:flex; align-items:center; justify-content:space-between; margin-top:8px; flex-wrap:wrap; gap:8px;';
        const file1Label = document.createElement('span');
        file1Label.textContent = '📄 mpv_protocol_handler.vbs';
        file1Label.style.fontWeight = 'bold';
        const downloadBtn1 = document.createElement('button');
        downloadBtn1.textContent = '📥 下载';
        downloadBtn1.style.cssText = 'background:#3b82f6; color:white; border:none; border-radius:6px; padding:4px 12px; cursor:pointer; font-size:12px;';
        const vbsContent = `' mpv_protocol_handler.vbs
Option Explicit
On Error Resume Next

Dim rawUrl, targetUrl, mpvPath, wshShell
Dim regex, matches, protocol, hostPart, pathPart

If WScript.Arguments.Count = 0 Then WScript.Quit
rawUrl = WScript.Arguments(0)

' 1. 去掉 mpv:// 前缀
If LCase(Left(rawUrl, 6)) = "mpv://" Then
    targetUrl = Mid(rawUrl, 7)
ElseIf LCase(Left(rawUrl, 4)) = "mpv:" Then
    targetUrl = Mid(rawUrl, 5)
Else
    targetUrl = rawUrl
End If

' 2. 所有反斜杠转为正斜杠
targetUrl = Replace(targetUrl, "\\", "/")

' 3. 使用正则表达式匹配并修复 URL
Set regex = New RegExp
regex.IgnoreCase = True
regex.Global = False

regex.Pattern = "^(https?)(?:[:/]+)(.*)$"
If regex.Test(targetUrl) Then
    Set matches = regex.Execute(targetUrl)
    protocol = matches(0).SubMatches(0)
    hostPart = matches(0).SubMatches(1)
    hostPart = LTrim(hostPart, "/")
    targetUrl = LCase(protocol) & "://" & hostPart
Else
    If InStr(targetUrl, ".") > 0 Then
        If Left(targetUrl, 8) = "https://" Then targetUrl = Mid(targetUrl, 9)
        If Left(targetUrl, 7) = "http://"  Then targetUrl = Mid(targetUrl, 8)
        targetUrl = "https://" & LTrim(targetUrl, "/")
    End If
End If

If Left(targetUrl, 8) = "https://" Then
    If Mid(targetUrl, 9, 8) = "https://" Then targetUrl = Mid(targetUrl, 9)
ElseIf Left(targetUrl, 7) = "http://" Then
    If Mid(targetUrl, 8, 7) = "http://" Then targetUrl = Mid(targetUrl, 8)
End If

mpvPath = Left(WScript.ScriptFullName, InStrRev(WScript.ScriptFullName, "\\")) & "mpv.exe"
Set wshShell = CreateObject("WScript.Shell")
wshShell.CurrentDirectory = Left(WScript.ScriptFullName, InStrRev(WScript.ScriptFullName, "\\"))
wshShell.Run """" & mpvPath & """ """ & targetUrl & """", 1, False

Set wshShell = Nothing
Set regex = Nothing`;
        downloadBtn1.onclick = () => downloadFile(vbsContent, 'mpv_protocol_handler.vbs');
        file1Container.appendChild(file1Label);
        file1Container.appendChild(downloadBtn1);
        regDiv.appendChild(file1Container);

        const vbsCode = document.createElement('code');
        vbsCode.textContent = vbsContent;
        vbsCode.style.cssText = 'background:#e2e8f0; display:block; padding:8px; margin:8px 0; border-radius:8px; font-size:11px; white-space:pre-wrap; overflow-x:auto;';
        regDiv.appendChild(vbsCode);

        // 文件2
        const file2Container = document.createElement('div');
        file2Container.style.cssText = 'display:flex; align-items:center; justify-content:space-between; margin-top:8px; flex-wrap:wrap; gap:8px;';
        const file2Label = document.createElement('span');
        file2Label.textContent = '📄 注册mpv.bat';
        file2Label.style.fontWeight = 'bold';
        const downloadBtn2 = document.createElement('button');
        downloadBtn2.textContent = '📥 下载';
        downloadBtn2.style.cssText = 'background:#3b82f6; color:white; border:none; border-radius:6px; padding:4px 12px; cursor:pointer; font-size:12px;';
        const batContent = `@echo off
title MPV Protocol Manager (VBS)
cls

echo ======================================
echo    MPV Protocol Manager (VBS)
echo ======================================
echo 1. Register MPV protocol
echo 2. Unregister MPV protocol
echo ======================================
set /p choice=Enter your choice (1/2):

if "%choice%"=="1" goto register
if "%choice%"=="2" goto unregister

echo Invalid choice! Enter 1 or 2.
pause
exit

:register
echo.
echo Checking required files...
if not exist "%~dp0mpv.exe" (
    echo [ERROR] mpv.exe not found.
    echo Place this batch file in the same folder as mpv.exe.
    pause
    exit /b
)
if not exist "%~dp0mpv_protocol_handler.vbs" (
    echo [ERROR] mpv_protocol_handler.vbs not found.
    pause
    exit /b
)

echo Writing registry entries...
reg add "HKEY_CLASSES_ROOT\\mpv" /ve /d "URL:mpv Protocol" /f >nul
reg add "HKEY_CLASSES_ROOT\\mpv" /v "URL Protocol" /d "" /f >nul
reg add "HKEY_CLASSES_ROOT\\mpv\\shell\\open\\command" /ve /d "wscript.exe \"%~dp0mpv_protocol_handler.vbs\" \"%%1\"" /f >nul

echo.
echo ======================================
echo Registration successful!
echo You can now use mpv://URL in your browser.
echo Example: mpv://https://www.bilibili.com/video/BV1t5v1e9EG4
echo ======================================
goto end

:unregister
echo.
echo Removing MPV protocol registry entries...
reg delete "HKEY_CLASSES_ROOT\\mpv" /f >nul 2>&1
if errorlevel 1 (
    echo Registry entry not found or already removed.
) else (
    echo Unregistration complete.
)
goto end

:end
echo.
echo Press any key to exit...
pause >nul`;
        downloadBtn2.onclick = () => downloadFile(batContent, '注册mpv.bat');
        file2Container.appendChild(file2Label);
        file2Container.appendChild(downloadBtn2);
        regDiv.appendChild(file2Container);

        const batCode = document.createElement('code');
        batCode.textContent = batContent;
        batCode.style.cssText = 'background:#e2e8f0; display:block; padding:8px; margin:8px 0; border-radius:8px; font-size:11px; white-space:pre-wrap; overflow-x:auto;';
        regDiv.appendChild(batCode);

        const step2 = document.createElement('div');
        step2.textContent = '2. 以管理员身份运行 “注册mpv.bat”，输入 1 并回车，完成注册。';
        step2.style.marginTop = '8px';
        regDiv.appendChild(step2);

        const step3 = document.createElement('div');
        step3.textContent = '3. 注册成功后，点击页面左下角的紫色播放按钮即可调用 MPV 播放当前视频。';
        regDiv.appendChild(step3);

        const note = document.createElement('div');
        note.textContent = '⚠️ 注意：自定义参数功能在此VBS方案中无效，如需添加启动参数请修改 mpv_protocol_handler.vbs 或在 mpv.conf 中配置。';
        note.style.marginTop = '8px';
        note.style.color = '#dc2626';
        regDiv.appendChild(note);

        win.appendChild(regDiv);

        mask.appendChild(win);
        document.body.appendChild(mask);

        // 渲染规则列表 - 完全避免 innerHTML
        function renderRules() {
            while (rulesContainer.firstChild) {
                rulesContainer.removeChild(rulesContainer.firstChild);
            }

            if (tempRules.length === 0) {
                const emptyDiv = document.createElement('div');
                emptyDiv.textContent = '暂无匹配规则，请添加（至少一条才能显示按钮）';
                emptyDiv.style.cssText = 'color:#6b7280; text-align:center; padding:12px;';
                rulesContainer.appendChild(emptyDiv);
                return;
            }
            tempRules.forEach((rule, idx) => {
                const itemDiv = document.createElement('div');
                itemDiv.style.cssText = 'display:flex; justify-content:space-between; align-items:center; padding:6px 0; border-bottom:1px solid #e5e7eb;';
                const ruleSpan = document.createElement('span');
                ruleSpan.textContent = rule;
                ruleSpan.style.cssText = 'font-size:13px; color:#1f2937; word-break:break-all; flex:1; margin-right:8px;';
                const delBtn = document.createElement('button');
                delBtn.textContent = '删除';
                delBtn.style.cssText = 'background:#ef4444; color:white; border:none; border-radius:6px; padding:2px 10px; cursor:pointer; font-size:12px;';
                delBtn.onclick = () => {
                    tempRules.splice(idx, 1);
                    renderRules();
                };
                itemDiv.appendChild(ruleSpan);
                itemDiv.appendChild(delBtn);
                rulesContainer.appendChild(itemDiv);
            });
        }
        renderRules();

        addRuleBtn.onclick = () => {
            let newRule = newRuleInput.value.trim();
            if (!newRule) {
                alert('请输入规则');
                return;
            }
            if (tempRules.includes(newRule)) {
                alert('规则已存在');
                return;
            }
            tempRules.push(newRule);
            renderRules();
            newRuleInput.value = '';
        };

        const closeMask = () => {
            mask.remove();
            settingWindowOpen = false;
        };

        cancelBtn.onclick = closeMask;
        saveBtn.onclick = () => {
            const newProtocol = protocolInput.value.trim();
            const newArgs = argsInput.value.trim();
            if (tempRules.length === 0) {
                alert('至少需要一条匹配规则，否则按钮永远不会显示！');
                return;
            }
            GM_setValue('mpvProtocol', newProtocol);
            GM_setValue('customArgs', newArgs);
            GM_setValue('urlRules', tempRules);
            config.mpvProtocol = newProtocol;
            config.customArgs = newArgs;
            config.urlRules = [...tempRules];
            addButtons();
            alert('✅ 设置保存成功！');
            closeMask();
        };
        mask.onclick = (e) => { if (e.target === mask) closeMask(); };
    }

    // 注册油猴菜单命令
    GM_registerMenuCommand('⚙️ MPV播放设置', () => {
        openSetting();
    });

    function init() {
        const oldSiteList = GM_getValue('siteList', null);
        if (oldSiteList && Array.isArray(oldSiteList) && (!GM_getValue('urlRules', null))) {
            log('检测到旧版域名列表，正在迁移为URL前缀规则...');
            const migratedRules = [];
            for (const domain of oldSiteList) {
                if (domain === 'youtube.com') migratedRules.push('https://www.youtube.com/watch');
                else if (domain === 'bilibili.com') migratedRules.push('https://www.bilibili.com/video/');
            }
            if (migratedRules.length === 0) {
                migratedRules.push(...defaultRules);
            }
            GM_setValue('urlRules', migratedRules);
            config.urlRules = migratedRules;
            log('迁移完成，新规则:', migratedRules);
        }

        if (document.readyState === 'loading') {
            document.addEventListener('DOMContentLoaded', () => {
                observePageChanges();
            });
        } else {
            observePageChanges();
        }
    }

    init();
})();