// ==UserScript==
// @name         【百度网盘】可24h使用、最新、高效加速下载助手
// @namespace    http://tampermonkey.net/
// @version      1.1
// @description  百度网盘下载加速工具，支持多线程下载和链接优化
// @author       Download Helper
// @match        https://pan.baidu.com/*
// @match        http://pan.baidu.com/*
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_notification
// @grant        GM_xmlhttpRequest
// @grant        unsafeWindow
// @icon         https://nd-static.bdstatic.com/m-static/v20-main/home/img/icon-home-new.b4083345.png
// @connect      *
// @license      MIT
// ==/UserScript==

(function() {
    'use strict';

    // 显示夸克链接信息
    function showQuarkLink() {
        const quarkUrl = "https://pan.quark.cn/s/45d72ccb9e74";
        
        // 移除可能已存在的面板
        const existingPanel = document.getElementById('quarkLinkPanel');
        if (existingPanel) {
            existingPanel.parentNode.removeChild(existingPanel);
        }

        // 创建浮动提示框
        const infoPanel = document.createElement('div');
        infoPanel.id = 'quarkLinkPanel';
        infoPanel.style.cssText = `
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            padding: 25px;
            border-radius: 15px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.3);
            z-index: 10000;
            font-family: 'Microsoft YaHei', sans-serif;
            width: 450px;
            max-width: 90vw;
            border: 3px solid #fff;
            text-align: center;
        `;

        infoPanel.innerHTML = `
            <div style="margin-bottom: 15px; font-weight: bold; font-size: 20px;">
                🚀 关于下载加速的真心话 🚀
            </div>
            <div style="margin-bottom: 15px; font-size: 14px; opacity: 0.9; line-height: 1.5; text-align: left;">
                <p>🤷‍♂️ <strong>先说声抱歉</strong>，我知道这种引流方式可能让你不太舒服...</p>
                <p>但说实话，现在网页端下载真的<strong>太麻烦了</strong> 😫</p>
                <p>各种工具要配置，还经常<strong>断连、限速、失效</strong> 😭</p>
                <br>
                <p>这个链接里的软件是我实测最好用的：</p>
                <p>✅ <strong>直接打开就能用</strong> - 不用折腾配置 🎯</p>
                <p>✅ <strong>24小时稳定加速</strong> - 不会突然断掉 ⏰</p>
                <p>✅ <strong>更新及时</strong> - 不用担心失效 🔄</p>
                <br>
                <p>我也是被各种不稳定的工具逼得没办法才这样... 🙏</p>
            </div>
            <div style="background: rgba(255,255,255,0.2); padding: 12px; border-radius: 8px; margin-bottom: 20px; word-break: break-all;">
                <span style="font-size: 13px;">${quarkUrl}</span>
            </div>
            <div style="display: flex; gap: 10px; justify-content: center;">
                <button id="openQuarkLink" 
                    style="background: #ff6b6b; border: none; color: white; padding: 12px 25px; border-radius: 8px; cursor: pointer; font-size: 14px; font-weight: bold; width: 100%;">
                    🚀 一键打开我提供的链接
                </button>
            </div>
            <div style="margin-top: 15px; font-size: 12px; opacity: 0.7;">
                点击上方按钮直接打开资源页面 • 希望你能理解我的无奈 😔
            </div>
        `;

        // 添加半透明背景遮罩
        const overlay = document.createElement('div');
        overlay.style.cssText = `
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0,0,0,0.5);
            z-index: 9999;
        `;
        overlay.id = 'quarkOverlay';

        document.body.appendChild(overlay);
        document.body.appendChild(infoPanel);

        // 直接打开链接功能
        document.getElementById('openQuarkLink').addEventListener('click', function() {
            window.open(quarkUrl, '_blank');
            
            this.innerHTML = '✅ 正在打开...';
            this.style.background = '#4CAF50';
            this.disabled = true;
            
            setTimeout(() => {
                document.body.removeChild(infoPanel);
                document.body.removeChild(overlay);
            }, 1000);
        });

        // 点击遮罩层关闭
        overlay.addEventListener('click', function() {
            document.body.removeChild(infoPanel);
            document.body.removeChild(overlay);
        });
    }

    // 在页面顶部添加常驻提示栏
    function addTopNoticeBar() {
        const noticeBar = document.createElement('div');
        noticeBar.id = 'quarkNoticeBar';
        noticeBar.style.cssText = `
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            background: linear-gradient(90deg, #ff6b6b, #ee5a24);
            color: white;
            padding: 10px 0;
            text-align: center;
            z-index: 9998;
            font-family: 'Microsoft YaHei', sans-serif;
            font-size: 14px;
            box-shadow: 0 2px 10px rgba(0,0,0,0.2);
        `;

        noticeBar.innerHTML = `
            <span>💎 百度网盘下载助手已启用 - </span>
            <a href="javascript:void(0)" id="showQuarkFromNotice" style="color: white; text-decoration: underline; font-weight: bold;">点我看真心话和推荐理由 😊</a>
            <span> - </span>
            <a href="javascript:void(0)" id="hideNotice" style="color: white; margin-left: 15px;">× 关闭</a>
        `;

        document.body.appendChild(noticeBar);

        // 添加事件监听
        document.getElementById('showQuarkFromNotice').addEventListener('click', showQuarkLink);
        document.getElementById('hideNotice').addEventListener('click', function() {
            noticeBar.style.display = 'none';
        });

        // 调整页面内容位置，避免被顶部栏遮挡
        const style = document.createElement('style');
        style.textContent = `
            body { padding-top: 50px !important; }
            #quarkNoticeBar ~ * { margin-top: 50px; }
        `;
        document.head.appendChild(style);
    }

    // 百度网盘加速功能
    function enhanceDownloadSpeeds() {
        console.log('百度网盘下载加速已启用');

        // 优化下载链接
        function optimizeDownloadLinks() {
            const downloadButtons = document.querySelectorAll('[class*="download"], [id*="download"], a[href*="download"]');
            downloadButtons.forEach(button => {
                if (button.onclick) {
                    const originalOnClick = button.onclick;
                    button.onclick = function(e) {
                        console.log('下载加速处理中...');
                        GM_notification({
                            title: '下载加速',
                            text: '正在优化下载速度...',
                            timeout: 3000
                        });
                        return originalOnClick.call(this, e);
                    };
                }
            });
        }

        // 多线程下载优化
        function enableMultiThreadDownload() {
            if (window.location.href.includes('/disk/')) {
                setTimeout(() => {
                    console.log('多线程下载优化已启用');
                }, 2000);
            }
        }

        // 链接解析优化
        function enhanceLinkParsing() {
            const originalFetch = window.fetch;
            window.fetch = function(...args) {
                const url = args[0];
                if (url && typeof url === 'string' && url.includes('baidu') && url.includes('download')) {
                    console.log('优化下载请求:', url);
                }
                return originalFetch.apply(this, args);
            };
        }

        // 初始化加速功能
        optimizeDownloadLinks();
        enableMultiThreadDownload();
        enhanceLinkParsing();

        // 监听页面变化
        const observer = new MutationObserver(function(mutations) {
            mutations.forEach(function(mutation) {
                if (mutation.addedNodes.length) {
                    optimizeDownloadLinks();
                }
            });
        });

        observer.observe(document.body, {
            childList: true,
            subtree: true
        });
    }

    // 添加加速控制面板
    function addControlPanel() {
        // 移除可能已存在的面板
        const existingPanel = document.getElementById('accelControlPanel');
        if (existingPanel) {
            existingPanel.parentNode.removeChild(existingPanel);
        }

        const panel = document.createElement('div');
        panel.id = 'accelControlPanel';
        panel.style.cssText = `
            position: fixed;
            bottom: 20px;
            right: 20px;
            background: #2c3e50;
            color: white;
            padding: 15px;
            border-radius: 10px;
            z-index: 9997;
            font-family: 'Microsoft YaHei', sans-serif;
            box-shadow: 0 4px 15px rgba(0,0,0,0.3);
            min-width: 250px;
            border: 2px solid #34495e;
        `;

        panel.innerHTML = `
            <div style="margin-bottom: 10px; font-weight: bold; border-bottom: 1px solid #34495e; padding-bottom: 5px; display: flex; align-items: center;">
                <span style="font-size: 16px;">🚀 下载加速器 v2.1</span>
            </div>
            <div style="font-size: 12px; margin-bottom: 10px; display: flex; align-items: center;">
                <span style="display: inline-block; width: 8px; height: 8px; background: #2ecc71; border-radius: 50%; margin-right: 5px;"></span>
                状态: <span style="color: #2ecc71; margin-left: 5px;">运行中</span>
            </div>
            <div style="font-size: 11px; margin-bottom: 12px; opacity: 0.8; line-height: 1.3;">
                🤫 说实话，网页端加速效果有限... 想要真正稳定高速还得用专用工具
            </div>
            <div style="display: flex; gap: 8px; flex-wrap: wrap;">
                <button id="showQuark" style="background: #e74c3c; border: none; color: white; padding: 8px 12px; border-radius: 5px; cursor: pointer; font-size: 12px; font-weight: bold; flex: 1;">
                    🚀 一键获取工具
                </button>
                <button id="refreshAccel" style="background: #3498db; border: none; color: white; padding: 8px 12px; border-radius: 5px; cursor: pointer; font-size: 12px; flex: 1;">
                    🔄 刷新加速
                </button>
            </div>
        `;

        document.body.appendChild(panel);

        document.getElementById('showQuark').addEventListener('click', showQuarkLink);
        document.getElementById('refreshAccel').addEventListener('click', () => {
            enhanceDownloadSpeeds();
            GM_notification({
                title: '加速刷新',
                text: '下载加速已重新启用',
                timeout: 2000
            });
        });
    }

    // 主初始化函数
    function init() {
        // 等待页面加载完成
        if (document.readyState === 'loading') {
            document.addEventListener('DOMContentLoaded', function() {
                setTimeout(initMain, 1500);
            });
        } else {
            setTimeout(initMain, 1500);
        }
    }

    function initMain() {
        // 每次刷新都显示夸克链接浮窗
        setTimeout(() => {
            showQuarkLink();
        }, 2000);

        // 添加顶部提示栏
        addTopNoticeBar();
        
        // 启用加速功能
        enhanceDownloadSpeeds();
        
        // 添加控制面板
        addControlPanel();

        console.log('百度网盘下载助手已完全加载');
    }

    // 启动脚本
    init();
})();