// ==UserScript==
// @name         华医网课程自动收藏工具-增强版(批量)V2.5 稳定【赛博朋克风格】
// @namespace    http://tampermonkey.net/
// @version      2.5
// @description  华医网课程批量收藏工具！稳定！业内人士专用！
// @author       vx：hapens1986 课程代学可咨询！
// @license      MIT
// @match        https://cme28.91huayi.com/*
// @ICON         https://cdn-icons-png.flaticon.com/128/4594/4594681.png
// @grant        GM_addStyle
// @grant        GM_xmlhttpRequest
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_openInTab
// @grant        GM_notification
// @connect      91huayi.com
// ==/UserScript==

(function() {
    'use strict';

    GM_addStyle(`
        #cid-input-container {
            position: fixed;
            top: 100px;
            right: 20px;
            z-index: 9999;
            background: #0a0a1a;
            padding: 15px;
            border: 1px solid #00f0ff;
            border-radius: 5px;
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
            font-family: 'Courier New', monospace;
            width: 300px;
            cursor: move;
            color: #00f0ff;
        }
        #cid-input-container.dragging {
            opacity: 0.8;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
        }
        #cid-input-container-header {
            padding: 5px;
            margin: -15px -15px 10px -15px;
            background: #121230;
            border-bottom: 1px solid #00f0ff;
            border-radius: 5px 5px 0 0;
            font-weight: bold;
            user-select: none;
            text-shadow: 0 0 5px #00f0ff;
        }
        #cid-input, #cid-input-batch {
            width: 100%;
            padding: 8px;
            margin: 10px 0 5px;
            background: #0f0f1a;
            border: 1px solid #ff00aa;
            border-radius: 3px;
            box-sizing: border-box;
            color: #00f0ff;
            font-family: 'Courier New', monospace;
        }
        #cid-input-batch {
            height: 300px;
            resize: vertical;
        }
        #collect-btn, #batch-collect-btn {
            background: linear-gradient(90deg, #ff00aa, #00f0ff);
            color: #0a0a1a;
            border: none;
            padding: 8px 15px;
            border-radius: 3px;
            cursor: pointer;
            width: 100%;
            margin: 5px 0;
            font-weight: bold;
            transition: all 0.3s;
            text-shadow: none;
        }
        #batch-collect-btn {
            background: linear-gradient(90deg, #00f0ff, #ff00aa);
        }
        #collect-btn:hover, #batch-collect-btn:hover {
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.7);
        }
        #collect-btn:disabled, #batch-collect-btn:disabled {
            background: #333344;
            color: #666677;
            cursor: not-allowed;
            box-shadow: none;
        }
        #status-message {
            margin-top: 10px;
            font-size: 13px;
            line-height: 1.4;
        }
        .success {
            color: #00ff88;
            text-shadow: 0 0 3px #00ff88;
        }
        .error {
            color: #ff0055;
            text-shadow: 0 0 3px #ff0055;
        }
        .warning {
            color: #ffaa00;
            text-shadow: 0 0 3px #ffaa00;
        }
        .loading {
            color: #00f0ff;
            text-shadow: 0 0 3px #00f0ff;
        }
        .course-name {
            font-weight: bold;
            margin: 5px 0;
        }
        .hidden-iframe {
            position: absolute;
            width: 1px;
            height: 1px;
            padding: 0;
            margin: -1px;
            overflow: hidden;
            clip: rect(0, 0, 0, 0);
            border: 0;
        }
        .toggle-mode-btn {
            background: #333344;
            color: #00f0ff;
            border: 1px solid #00f0ff;
            padding: 6px 12px;
            border-radius: 3px;
            cursor: pointer;
            width: 100%;
            margin: 5px 0;
            transition: all 0.3s;
            font-size: 13px;
        }
        .toggle-mode-btn:hover {
            background: #444455;
            box-shadow: 0 0 8px rgba(0, 240, 255, 0.5);
        }
        .batch-instruction {
            font-size: 12px;
            color: #6666ff;
            margin: 5px 0;
        }

        .progress-container {
            margin: 10px 0;
            font-size: 13px;
            font-family: 'Courier New', monospace;
        }
        .progress-text {
            font-weight: bold;
            color: #00f0ff;
            text-shadow: 0 0 3px #00f0ff;
        }
        .cyber-progress {
            height: 20px;
            background: #0f0f1a;
            position: relative;
            overflow: hidden;
            border: 1px solid #00f0ff;
            box-shadow: 0 0 10px rgba(0, 240, 255, 0.3);
            margin-top: 5px;
        }
        .cyber-bar {
            height: 100%;
            width: 0%;
            background: linear-gradient(90deg, #ff00aa, #00f0ff);
            transition: width 0.5s ease;
            position: relative;
        }
        .cyber-glitch {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: linear-gradient(
                90deg,
                transparent 25%,
                rgba(255, 255, 255, 0.3) 50%,
                transparent 75%
            );
            background-size: 200% 100%;
            animation: glitch 2s linear infinite;
            opacity: 0.3;
        }
        @keyframes glitch {
            0% { background-position: 200% 0; }
        }

        @media (max-width: 400px) {
            #cid-input-container {
                width: 280px;
                right: 10px;
            }
        }
    `);

    const container = document.createElement('div');
    container.id = 'cid-input-container';
    container.innerHTML = `
        <div id="cid-input-container-header">华医网课程收藏工具V2.5</div>
        <div id="single-mode">
            <input type="text" id="cid-input" placeholder="请输入课程CID值">
            <button id="collect-btn">收藏课程</button>
        </div>
        <div id="batch-mode" style="display:none">
            <textarea id="cid-input-batch" placeholder="请输入多个CID值，每行一个或用逗号分隔"></textarea>
            <button id="batch-collect-btn">批量收藏课程</button>
            <div class="batch-instruction">提示：可以输入多个CID，每行一个或用逗号分隔</div>
        </div>
        <button class="toggle-mode-btn" id="mode-toggle">切换到批量模式</button>
        <div class="progress-container">
            <span class="progress-text">进度: 0% [0/0]</span>
            <div class="cyber-progress">
                <div class="cyber-bar" id="cyber-progress-bar"></div>
                <div class="cyber-glitch"></div>
            </div>
        </div>
        <div id="status-message"></div>
        <iframe id="hidden-iframe" class="hidden-iframe"></iframe>
    `;
    document.body.appendChild(container);

    // 获取元素
    const cidInput = document.getElementById('cid-input');
    const cidInputBatch = document.getElementById('cid-input-batch');
    const collectBtn = document.getElementById('collect-btn');
    const batchCollectBtn = document.getElementById('batch-collect-btn');
    const statusMessage = document.getElementById('status-message');
    const hiddenIframe = document.getElementById('hidden-iframe');
    const singleMode = document.getElementById('single-mode');
    const batchMode = document.getElementById('batch-mode');
    const modeToggle = document.getElementById('mode-toggle');
    const progressText = document.querySelector('.progress-text');
    const cyberProgressBar = document.getElementById('cyber-progress-bar');

    // 当前模式
    let isBatchMode = false;

    // 设置状态消息
    function setStatus(message, type = '') {
        statusMessage.innerHTML = message;
        statusMessage.className = type;
    }

    // 更新进度条
    function updateProgress(current, total) {
        const percent = Math.round((current / total) * 100);
        progressText.textContent = `进度: ${percent}% [${current}/${total}]`;
        cyberProgressBar.style.width = `${percent}%`;
    }

    // 初始化拖动功能
    function initDrag() {
        const container = document.getElementById('cid-input-container');
        const header = document.getElementById('cid-input-container-header');

        let isDragging = false;
        let offsetX, offsetY;

        header.addEventListener('mousedown', function(e) {
            isDragging = true;
            container.classList.add('dragging');

            // 计算鼠标位置与面板位置的偏移量
            const rect = container.getBoundingClientRect();
            offsetX = e.clientX - rect.left;
            offsetY = e.clientY - rect.top;

            e.preventDefault();
        });

        document.addEventListener('mousemove', function(e) {
            if (!isDragging) return;

            // 计算新位置
            let left = e.clientX - offsetX;
            let top = e.clientY - offsetY;

            // 限制在视窗范围内
            const maxLeft = window.innerWidth - container.offsetWidth;
            const maxTop = window.innerHeight - container.offsetHeight;

            left = Math.max(0, Math.min(left, maxLeft));
            top = Math.max(0, Math.min(top, maxTop));

            // 应用新位置
            container.style.left = left + 'px';
            container.style.top = top + 'px';
            container.style.right = 'auto';
        });

        document.addEventListener('mouseup', function() {
            isDragging = false;
            container.classList.remove('dragging');
        });
    }

    // 切换模式
    function toggleMode() {
        isBatchMode = !isBatchMode;
        singleMode.style.display = isBatchMode ? 'none' : 'block';
        batchMode.style.display = isBatchMode ? 'block' : 'none';
        modeToggle.textContent = isBatchMode ? '切换到单条模式' : '切换到批量模式';
        setStatus('');
        updateProgress(0, 0);
    }

    // 获取课程信息
    async function getCourseInfo(cid) {
        return new Promise((resolve, reject) => {
            GM_xmlhttpRequest({
                method: "GET",
                url: `https://cme28.91huayi.com/pages/course.aspx?cid=${cid}`,
                onload: function(response) {
                    try {
                        const parser = new DOMParser();
                        const doc = parser.parseFromString(response.responseText, "text/html");
                        const title = doc.querySelector('h1.course-title')?.textContent?.trim() || `课程 (CID: ${cid})`;
                        const isCollected = doc.getElementById('btnCollect')?.getAttribute('data-collect') === '1';
                        resolve({ title, isCollected });
                    } catch (e) {
                        reject(`解析课程页面失败: ${e.message}`);
                    }
                },
                onerror: function(error) {
                    reject(`获取课程信息失败: ${error.statusText}`);
                },
                timeout: 10000
            });
        });
    }


    function collectWithIframe(cid, title) {
        return new Promise((resolve) => {
            hiddenIframe.src = `https://cme28.91huayi.com/pages/course.aspx?cid=${cid}`;

            let checkCount = 0;
            const maxChecks = 5;
            const checkInterval = 1000;

            const checkCollection = setInterval(() => {
                checkCount++;
                try {
                    const iframeDoc = hiddenIframe.contentDocument || hiddenIframe.contentWindow.document;
                    const collectBtn = iframeDoc.getElementById('btnCollect');

                    if (collectBtn) {
                        clearInterval(checkCollection);
                        if (collectBtn.getAttribute('data-collect') === '1') {
                            resolve(true);
                        } else {
                            collectBtn.click();
                            setTimeout(() => {
                                resolve(true);
                            }, 1500);
                        }
                    } else if (checkCount >= maxChecks) {
                        clearInterval(checkCollection);
                        resolve(false);
                    }
                } catch (e) {
                    if (checkCount >= maxChecks) {
                        clearInterval(checkCollection);
                        resolve(false);
                    }
                }
            }, checkInterval);


            setTimeout(() => {
                clearInterval(checkCollection);
                resolve(false);
            }, (maxChecks + 2) * checkInterval);
        });
    }

    // 收藏单个课程
    async function collectSingleCourse(cid) {
        try {
            // 获取课程信息
            const { title, isCollected } = await getCourseInfo(cid);

            if (isCollected) {
                return { success: false, message: `课程已收藏: ${title}` };
            }

            // 使用iframe方式收藏
            const success = await collectWithIframe(cid, title);

            if (success) {
                return { success: true, message: `收藏成功: ${title}` };
            } else {
        
                GM_openInTab(`https://cme28.91huayi.com/pages/course.aspx?cid=${cid}`, false);
                return { success: false, message: `请在新标签页中手动收藏: ${title}` };
            }
        } catch (error) {
            return { success: false, message: `收藏失败: ${error}` };
        }
    }


    async function handleSingleCollect() {
        const cid = cidInput.value.trim();
        if (!cid) {
            setStatus('请输入有效的CID值', 'error');
            return;
        }

        collectBtn.disabled = true;
        setStatus('正在处理...', 'loading');
        updateProgress(0, 1);

        const result = await collectSingleCourse(cid);
        updateProgress(1, 1);

        if (result.success) {
            setStatus(`<div class="course-name">${result.message}</div>`, 'success');
            GM_notification({
                title: '收藏成功',
                text: result.message,
                timeout: 3000,
                highlight: true
            });
        } else {
            setStatus(`<div>${result.message}</div>`, result.message.includes('手动收藏') ? 'warning' : 'error');
        }

        collectBtn.disabled = false;
    }


    async function handleBatchCollect() {
        const input = cidInputBatch.value.trim();
        if (!input) {
            setStatus('请输入有效的CID值', 'error');
            return;
        }


        const cids = input.split(/[\n,]+/).map(cid => cid.trim()).filter(cid => cid);
        if (cids.length === 0) {
            setStatus('未检测到有效的CID值', 'error');
            return;
        }

        batchCollectBtn.disabled = true;
        setStatus(`准备收藏 ${cids.length} 个课程...`, 'loading');
        updateProgress(0, cids.length);

        let successCount = 0;
        let messages = [];

        // 逐个处理课程
        for (let i = 0; i < cids.length; i++) {
            const cid = cids[i];
            setStatus(`正在处理第 ${i+1}/${cids.length} 个课程 (CID: ${cid})...`, 'loading');
            updateProgress(i, cids.length);

            const result = await collectSingleCourse(cid);
            if (result.success) {
                successCount++;
                messages.push(`<span style="color:#00ff88">✓ ${result.message}</span>`);
            } else {
                messages.push(`<span style="color:#ff0055">✗ ${result.message}</span>`);
            }

            // 稍微延迟一下，避免请求过于频繁
            await new Promise(resolve => setTimeout(resolve, 500));
        }

        // 显示最终结果
        updateProgress(cids.length, cids.length);
        setStatus(`
            <div>已完成 ${cids.length} 个课程处理</div>
            <div>成功收藏: <span style="color:#00ff88">${successCount}</span> 个</div>
            <div>失败: <span style="color:#ff0055">${cids.length - successCount}</span> 个</div>
            <div style="max-height: 200px; overflow-y: auto; margin-top: 5px; border-top: 1px solid #00f0ff; padding-top: 5px;">
                ${messages.join('<br>')}
            </div>
        `, successCount === cids.length ? 'success' : (successCount > 0 ? 'warning' : 'error'));

        batchCollectBtn.disabled = false;

        // 显示桌面通知
        if (successCount > 0) {
            GM_notification({
                title: '批量收藏完成',
                text: `成功收藏 ${successCount}/${cids.length} 个课程`,
                timeout: 5000,
                highlight: true
            });
        }
    }

    // 监听收藏按钮点击
    collectBtn.addEventListener('click', handleSingleCollect);
    batchCollectBtn.addEventListener('click', handleBatchCollect);
    modeToggle.addEventListener('click', toggleMode);

    // 监听输入框回车键
    cidInput.addEventListener('keypress', function(e) {
        if (e.key === 'Enter') {
            handleSingleCollect();
        }
    });

    // 初始化拖动功能
    initDrag();

    // 自动填充当前页面CID
    function getCIDFromURL() {
        const urlParams = new URLSearchParams(window.location.search);
        return urlParams.get('cid');
    }

    const currentCID = getCIDFromURL();
    if (currentCID) {
        cidInput.value = currentCID;
    }
})();