// ==UserScript==
// @name         影视磁力收集器（光鸭）
// @namespace    https://github.com/yournamespace/mukaku-collector-persistent
// @version      5.5
// @description  点击收集磁力链接，数据跨页面保留，支持批量导出，收集后自动关闭页面返回主页
// @author       You
// @match        *://*/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=mukaku.com
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_setClipboard
// @grant        GM_addStyle
// @run-at       document-idle
// ==/UserScript==

(function() {
    'use strict';

    // ========== 配置项 ==========
    const CONFIG = {
        // 存储键名
        storageKey: 'mukaku_magnet_collection',
        // 是否阻止磁力链接默认行为
        preventDefaultClick: true,
        // 提示显示时间 (毫秒)
        toastDuration: 1500,
        // 调试模式
        debug: true,
        // 网站主页地址
        homeUrl: 'https://web3.mukaku.com/',
        // 激活配置
        activation: {
            enabled: true,
            qqGroup: '1049357922',
            storageKey: 'magnet_collector_activation',
            usedKeysKey: 'magnet_collector_used_keys'
        }
    };

    // 激活码哈希列表（SHA-256 哈希值，原始激活码无法直接读取）
    // 示例：激活码 "TEST1234" 的 SHA-256 哈希为示例值
    const VALID_ACTIVATION_KEYS = [
    "1429eee3820faef63bd80a9df98c307a429e14c1b3cb8326a48c1e5b4c9685a0",
    "a361a5ca0a87a40dcce2afecdcbcc948e081653e6f749ad835d49bfe8a36ca74",
    "551d829fd85a35d4dd43d7f379a50e1193cb7474960ba34a175668cd124468d5",
    "8c490b62656e6f171b68c5e6cd0b30b4795f7c7e07777c4d9b61f86b21acdc07",
    "b00f70c4c447f0275e2e4cdcf959f0056fba3413f34365b73c0cb1f5e2cfa787",
    "79607965eaff0b1ce45e0bb1758f89d4e51e54b4bfaeb195beca97c4224f25fa",
    "7c012093064081ddbc7dfe0d27f1365001c1cc46d9fe2559a1661ec5a19f9c5b",
    "79bd174bcf109b7b2ac976e9399317bdd4e84564570c014e2a5d27ecdae3bb25",
    "f0d5478e4a270e7e1a0fa08fad91d82b276a9b3ec64ece4eaad39e2e9a433270",
    "0b28392b73f57730b724b9de49fc1586e6eebe76e4c09fb588d956fd1b197d0a",
    "3cb5941f97d53023f2726d91e73d3ebc17a420dcde74493c39691708ca26ad4e",
    "9e56167f1f0caef96839dd415dc362c6734b9b3c3bc849730a3a2f5dc149e967",
    "87cf99a0a5866dbd0c6fecc426bd8ab05eeed88ce17dc7f69191d144b1e66d66",
    "b68b2511c1dfaf41fb29fad94118d9fdd03f714fc8b58885c234e8eca7d5d76b",
    "938b658e40937e95c61b097b38b03534ba7b1d640b22b1fc3b3cc34f028429bf",
    "985526abb908742e85fdeafe51b54e7bb715f134141e88e39e946cc2e630ceb5",
    "b62e54ddd0d7b898c925b1a7f07b520414091b25af87517b70d0864305b2941d",
    "a75ecb61074a9a8779508a7e611155e921cae72c5e69b7bc169542ff6079ec2a",
    "95a3eb6cb38d0f45847ea9f09b34e14739808da2aedbcd009c67d97600055ea5",
    "269c6d1d457d3db25ba880ad159915409596f27b547db7367715227e8898672b",
    "15d36774a37bf35f0747b0c768c223f9aabbc3083039b3e4ce17e0828985761e",
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];

    let isActivated = false;
    let activationModal = null;

    // 磁力识别模式
    const MAGNET_PATTERNS = [
        /^magnet:\?xt=urn:btih:/i,
        /btih:([a-fA-F0-9]{40})/i,
        /magnet:/i
    ];

    // 标题选择器
    const TITLE_SELECTORS = [
        'h1', 'h2', 'h3', '.title', '.video-title', '.entry-title',
        '[class*="title"]', '[class*="name"]'
    ];

    // 收集的数据（从存储加载）
    let collectedItems = [];
    let panelVisible = false;
    let panel = null;
    let floatBtn = null;

    // ========== 样式 ==========
    GM_addStyle(`
        .magnet-collector-panel {
            position: fixed;
            top: 20px;
            right: 20px;
            width: 450px;
            max-height: 80vh;
            background: rgba(25, 30, 40, 0.96);
            backdrop-filter: blur(8px);
            color: #f0f0f0;
            border-radius: 14px;
            box-shadow: 0 10px 30px rgba(0,0,0,0.6);
            z-index: 99999;
            font-family: 'Segoe UI', system-ui, sans-serif;
            font-size: 14px;
            border: 1px solid #3f4b60;
            display: flex;
            flex-direction: column;
            overflow: hidden;
        }
        .panel-header {
            padding: 14px 16px;
            background: #2a3440;
            border-bottom: 1px solid #3f4b60;
            cursor: move;
            display: flex;
            justify-content: space-between;
            align-items: center;
            user-select: none;
        }
        .panel-header h3 {
            margin: 0;
            font-size: 16px;
            font-weight: 500;
            color: #e0e0ff;
        }
        .panel-header button {
            background: none;
            border: none;
            color: #b0b0c0;
            font-size: 18px;
            cursor: pointer;
            padding: 0 4px;
        }
        .panel-header button:hover { color: white; }
        .panel-controls {
            padding: 10px 16px;
            background: #1e2630;
            border-bottom: 1px solid #3f4b60;
            display: flex;
            gap: 8px;
            flex-wrap: wrap;
        }
        .panel-controls button {
            background: #3a4a6a;
            border: none;
            color: white;
            padding: 6px 12px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 13px;
            border: 1px solid #5a6a8a;
        }
        .panel-controls button:hover { background: #4a5a7a; }
        .panel-controls button.copy-btn { background: #2e7d32; border-color: #4caf50; }
        .panel-controls button.copy-btn:hover { background: #3d9b41; }
        .panel-controls button.clear-btn { background: #7a2e2e; border-color: #b55a5a; }
        .panel-controls button.clear-btn:hover { background: #9b3d3d; }
        .manual-add-section {
            padding: 10px 16px;
            background: #222a35;
            border-bottom: 1px solid #3f4b60;
            display: flex;
            gap: 6px;
        }
        .manual-add-section input {
            flex: 1;
            background: #1a2028;
            border: 1px solid #3f4b60;
            color: white;
            padding: 6px 10px;
            border-radius: 6px;
            font-size: 12px;
        }
        .manual-add-section button {
            background: #3a6a9e;
            padding: 6px 12px;
            white-space: nowrap;
        }
        .collection-list {
            flex: 1;
            overflow-y: auto;
            padding: 6px 0;
            max-height: calc(80vh - 200px);
        }
        .collection-item {
            padding: 10px 16px;
            border-bottom: 1px solid #3a4555;
            position: relative;
        }
        .collection-item:hover { background: rgba(60, 80, 110, 0.3); }
        .item-title {
            font-weight: 600;
            color: #ffd966;
            margin-bottom: 6px;
            padding-right: 60px;
        }
        .item-size {
            float: right;
            font-size: 12px;
            color: #8bc34a;
            background: rgba(139, 195, 74, 0.15);
            padding: 2px 8px;
            border-radius: 4px;
            font-weight: normal;
        }
        .item-magnet {
            font-family: 'Consolas', monospace;
            font-size: 11px;
            background: #1a2028;
            padding: 6px 8px;
            border-radius: 6px;
            color: #aaccff;
            overflow-x: auto;
            white-space: nowrap;
            border: 1px solid #3f4b6b;
        }
        .item-actions {
            position: absolute;
            top: 10px;
            right: 12px;
            display: flex;
            gap: 5px;
        }
        .item-actions button {
            background: none;
            border: none;
            color: #bbb;
            cursor: pointer;
            font-size: 14px;
            padding: 2px 6px;
            border-radius: 4px;
        }
        .item-actions button:hover { background: #4a5a7a; color: white; }
        .item-actions .delete-btn:hover { background: #9b3d3d; }
        .empty-message {
            padding: 25px 20px;
            text-align: center;
            color: #9aa;
        }
        .counter-badge {
            background: #3a6a9e;
            color: white;
            border-radius: 30px;
            padding: 2px 8px;
            font-size: 12px;
            margin-left: 8px;
        }
        .qq-group-text {
            font-size: 11px;
            color: #8bc34a;
            margin-left: 10px;
            font-weight: normal;
            text-shadow: 0 0 5px rgba(139, 195, 74, 0.5);
        }
        .float-btn {
            position: fixed;
            bottom: 30px;
            right: 30px;
            width: 58px;
            height: 58px;
            border-radius: 30px;
            background: #2e4e7e;
            color: white;
            border: 2px solid #6a8cbb;
            box-shadow: 0 4px 15px rgba(0,0,0,0.4);
            font-size: 24px;
            cursor: pointer;
            z-index: 99998;
            display: flex;
            align-items: center;
            justify-content: center;
            background-image: url('https://cdn.phototourl.com/free/2026-04-28-3281baad-ef2f-4658-8efd-186a5ae16801.png');
            background-size: cover;
            background-position: center;
        }
        .float-btn:hover { transform: scale(1.05); }
        .float-btn.dragging {
            cursor: grabbing;
            transform: scale(1.1);
            box-shadow: 0 8px 25px rgba(0,0,0,0.5);
        }
        .float-btn .badge {
            position: absolute;
            top: -5px;
            right: -5px;
            background: #d32f2f;
            color: white;
            border-radius: 12px;
            padding: 2px 6px;
            font-size: 12px;
            min-width: 18px;
            text-align: center;
        }
        .toast-message {
            position: fixed;
            bottom: 100px;
            right: 30px;
            background: #2e4e7e;
            color: white;
            padding: 10px 20px;
            border-radius: 30px;
            z-index: 100000;
            box-shadow: 0 4px 12px rgba(0,0,0,0.3);
            font-size: 14px;
        }
        .debug-info {
            padding: 4px 16px;
            background: #1a1e28;
            color: #8bc34a;
            font-size: 11px;
            border-top: 1px solid #3f4b60;
        }
        .activation-overlay {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.85);
            z-index: 100001;
            display: flex;
            align-items: center;
            justify-content: center;
            backdrop-filter: blur(5px);
        }
        .activation-modal {
            background: linear-gradient(145deg, #2a3440, #1e2630);
            border-radius: 16px;
            padding: 35px;
            width: 420px;
            max-width: 90%;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            border: 1px solid #3f4b60;
            position: relative;
        }
        .activation-modal .close-btn {
            position: absolute;
            top: 12px;
            right: 12px;
            background: none;
            border: none;
            color: #888;
            font-size: 20px;
            cursor: pointer;
            padding: 4px;
        }
        .activation-modal .close-btn:hover { color: white; }
        .activation-modal .logo {
            text-align: center;
            font-size: 42px;
            margin-bottom: 15px;
        }
        .activation-modal h2 {
            text-align: center;
            color: #e0e0ff;
            margin: 0 0 8px 0;
            font-size: 22px;
        }
        .activation-modal .subtitle {
            text-align: center;
            color: #999;
            font-size: 13px;
            margin: 0 0 25px 0;
        }
        .activation-modal .qq-group-info {
            background: rgba(139, 195, 74, 0.1);
            border: 1px solid rgba(139, 195, 74, 0.3);
            border-radius: 8px;
            padding: 15px 16px;
            margin-bottom: 20px;
            text-align: center;
        }
        .activation-modal .qq-group-info p {
            margin: 5px 0;
            color: #b0b0c0;
            font-size: 14px;
        }
        .activation-modal .qq-group-info .group-number {
            color: #8bc34a;
            font-weight: bold;
            font-size: 18px;
            font-family: 'Consolas', monospace;
        }
        .activation-modal .qq-group-info a {
            color: #42a5f5;
            text-decoration: none;
        }
        .activation-modal .qq-group-info a:hover { text-decoration: underline; }
        .activation-modal .form-group {
            margin-bottom: 15px;
        }
        .activation-modal .form-group label {
            display: block;
            color: #b0b0c0;
            font-size: 13px;
            margin-bottom: 6px;
        }
        .activation-modal .form-group input {
            width: 100%;
            box-sizing: border-box;
            background: #1a2028;
            border: 1px solid #3f4b60;
            color: white;
            padding: 14px;
            border-radius: 8px;
            font-size: 15px;
            font-family: 'Consolas', monospace;
            letter-spacing: 2px;
            transition: border-color 0.2s;
            text-transform: uppercase;
        }
        .activation-modal .form-group input:focus {
            outline: none;
            border-color: #4a6a9e;
        }
        .activation-modal .form-group input::placeholder {
            color: #555;
            letter-spacing: normal;
        }
        .activation-modal .activate-btn {
            width: 100%;
            background: linear-gradient(135deg, #2e7d32, #1b5e20);
            border: none;
            color: white;
            padding: 15px;
            border-radius: 8px;
            font-size: 15px;
            font-weight: 500;
            cursor: pointer;
            margin-top: 10px;
            transition: transform 0.1s, background 0.2s;
        }
        .activation-modal .activate-btn:hover {
            background: linear-gradient(135deg, #388e3c, #2e7d32);
        }
        .activation-modal .activate-btn:active { transform: scale(0.98); }
        .activation-modal .activate-btn:disabled {
            opacity: 0.6;
            cursor: not-allowed;
        }
        .activation-modal .status-message {
            text-align: center;
            margin-top: 15px;
            font-size: 13px;
            min-height: 20px;
        }
        .activation-modal .status-message.success { color: #8bc34a; }
        .activation-modal .status-message.error { color: #e57373; }
        .activation-modal .status-message.loading { color: #42a5f5; }
        .activation-modal .powered-by {
            text-align: center;
            margin-top: 20px;
            padding-top: 15px;
            border-top: 1px solid #3f4b60;
            color: #666;
            font-size: 12px;
        }
        .activation-required-overlay {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.75);
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 14px;
            z-index: 10;
        }
        .activation-required-overlay .content {
            text-align: center;
            color: white;
            padding: 20px;
        }
        .activation-required-overlay .content .icon {
            font-size: 48px;
            margin-bottom: 10px;
        }
        .activation-required-overlay .content button {
            margin-top: 15px;
            background: #2e7d32;
            border: none;
            color: white;
            padding: 10px 24px;
            border-radius: 6px;
            cursor: pointer;
            font-size: 14px;
        }
        .activation-required-overlay .content button:hover { background: #388e3c; }
    `);

    // ========== 激活系统 ==========
    async function sha256(message) {
        const encoder = new TextEncoder();
        const data = encoder.encode(message);
        const hash = await crypto.subtle.digest('SHA-256', data);
        return Array.from(new Uint8Array(hash))
            .map(b => b.toString(16).padStart(2, '0'))
            .join('');
    }

    function generateDeviceId() {
        const fingerprint = [
            navigator.userAgent,
            navigator.platform,
            navigator.language,
            screen.width,
            screen.height,
            new Date().getTimezoneOffset()
        ].join('|');
        return sha256(fingerprint).then(hash => hash.substring(0, 32));
    }

    async function checkActivationStatus() {
        if (!CONFIG.activation.enabled) {
            isActivated = true;
            return true;
        }

        try {
            const activationData = GM_getValue(CONFIG.activation.storageKey, null);
            if (!activationData) return false;

            const data = JSON.parse(activationData);
            
            if (!data.deviceId || !data.activatedAt) {
                return false;
            }

            const currentDeviceId = await generateDeviceId();
            if (data.deviceId !== currentDeviceId) {
                log('设备不匹配，需要重新激活');
                return false;
            }

            isActivated = true;
            log(`激活状态有效，激活时间: ${new Date(data.activatedAt).toLocaleString()}`);
            return true;
        } catch (e) {
            log('检查激活状态失败', 'warn');
            return false;
        }
    }

    async function saveActivation(keyHash) {
        const deviceId = await generateDeviceId();
        const activationData = {
            deviceId: deviceId,
            activatedAt: Date.now(),
            keyHash: keyHash
        };
        GM_setValue(CONFIG.activation.storageKey, JSON.stringify(activationData));
        
        const usedKeys = getUsedKeys();
        usedKeys.push(keyHash);
        GM_setValue(CONFIG.activation.usedKeysKey, JSON.stringify(usedKeys));
        
        isActivated = true;
        log('激活成功，设备ID: ' + deviceId.substring(0, 8) + '...');
    }

    function getUsedKeys() {
        try {
            const stored = GM_getValue(CONFIG.activation.usedKeysKey, '[]');
            return JSON.parse(stored);
        } catch (e) {
            return [];
        }
    }

    async function validateActivationKey(inputKey) {
        if (!inputKey || inputKey.trim().length < 8) {
            return { valid: false, reason: '激活码格式不正确' };
        }

        const inputHash = await sha256(inputKey.trim().toUpperCase());
        
        if (VALID_ACTIVATION_KEYS.indexOf(inputHash) === -1) {
            return { valid: false, reason: '无效的激活码' };
        }

        const usedKeys = getUsedKeys();
        if (usedKeys.indexOf(inputHash) !== -1) {
            return { valid: false, reason: '该激活码已被使用' };
        }

        return { valid: true, keyHash: inputHash };
    }

    function showActivationModal() {
        if (activationModal) {
            activationModal.remove();
        }

        const overlay = document.createElement('div');
        overlay.className = 'activation-overlay';

        activationModal = document.createElement('div');
        activationModal.className = 'activation-modal';
        activationModal.innerHTML = `
            <button class="close-btn" onclick="document.querySelector('.activation-overlay').remove()">✕</button>
            <div class="logo">🔑</div>
            <h2>磁力收集器 - 激活验证</h2>
            <p class="subtitle">请输入激活码以解锁全部功能</p>
            <div class="qq-group-info">
                <p>💬 需要激活码？加入 QQ 群领取</p>
                <p>群号：<span class="group-number">${CONFIG.activation.qqGroup}</span></p>
                <p><a href="https://qm.qq.com/cgi-bin/qm/qr?k=EXAMPLE&jump_from=webapi" target="_blank">点击快速加入</a></p>
            </div>
            <div class="form-group">
                <label for="activation-key">激活码</label>
                <input type="text" id="activation-key" placeholder="请输入激活码（不区分大小写）" maxlength="32" />
            </div>
            <button class="activate-btn" id="submit-activation">立即激活</button>
            <div class="status-message" id="activation-status"></div>
            <div class="powered-by">影视磁力收集器 v3.2</div>
        `;

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

        const activateBtn = document.getElementById('submit-activation');
        const statusDiv = document.getElementById('activation-status');
        const keyInput = document.getElementById('activation-key');

        activateBtn.addEventListener('click', async () => {
            const inputKey = keyInput.value.trim();

            if (!inputKey) {
                statusDiv.textContent = '请输入激活码';
                statusDiv.className = 'status-message error';
                return;
            }

            activateBtn.disabled = true;
            statusDiv.textContent = '正在验证激活码...';
            statusDiv.className = 'status-message loading';

            const result = await validateActivationKey(inputKey);

            if (result.valid) {
                await saveActivation(result.keyHash);
                statusDiv.textContent = '激活成功！即将进入...';
                statusDiv.className = 'status-message success';
                setTimeout(() => {
                    overlay.remove();
                    activationModal = null;
                    showToast('✅ 激活成功，欢迎使用！');
                    initAfterActivation();
                }, 1500);
            } else {
                statusDiv.textContent = result.reason;
                statusDiv.className = 'status-message error';
                activateBtn.disabled = false;
            }
        });

        keyInput.addEventListener('keypress', (e) => {
            if (e.key === 'Enter') {
                activateBtn.click();
            }
        });
    }

    function showActivationRequiredOverlay(panelEl) {
        const overlay = document.createElement('div');
        overlay.className = 'activation-required-overlay';
        overlay.innerHTML = `
            <div class="content">
                <div class="icon">🔑</div>
                <p>请先激活脚本</p>
                <button onclick="document.querySelector('.activation-required-overlay').remove(); showActivationModal();">立即激活</button>
            </div>
        `;
        panelEl.appendChild(overlay);
    }

    // ========== 存储操作 ==========
    function loadFromStorage() {
        try {
            const stored = GM_getValue(CONFIG.storageKey, '[]');
            collectedItems = JSON.parse(stored);
            // 确保每个条目有hash字段（兼容旧数据）
            collectedItems = collectedItems.filter(item => item && item.magnet).map(item => {
                if (!item.hash) {
                    const hashMatch = item.magnet.match(/btih:([a-fA-F0-9]{40})/i);
                    item.hash = hashMatch ? hashMatch[1].toLowerCase() : item.magnet;
                }
                return item;
            });
        } catch (e) {
            console.error('加载存储数据失败', e);
            collectedItems = [];
        }
        log(`从存储加载了 ${collectedItems.length} 条记录`);
    }

    function saveToStorage() {
        try {
            GM_setValue(CONFIG.storageKey, JSON.stringify(collectedItems));
            log(`已保存 ${collectedItems.length} 条记录到存储`);
        } catch (e) {
            console.error('保存数据失败', e);
        }
    }

    // ========== 初始化 ==========
    async function init() {
        loadFromStorage();

        if (CONFIG.activation.enabled) {
            const activated = await checkActivationStatus();
            if (!activated) {
                log('未激活，显示激活弹窗');
                setTimeout(() => {
                    showActivationModal();
                }, 500);
                createFloatButton();
                updateFloatBadge();
                return;
            }
        }

        initAfterActivation();
    }

    function initAfterActivation() {
        createFloatButton();
        setupGlobalClickListener();
        updateFloatBadge();

        if (collectedItems.length > 0) {
            showToast(`📦 已恢复 ${collectedItems.length} 条之前收集的磁力`, 2000);
        }
        log('持久化版收集器已启动');
    }

    function createFloatButton() {
        floatBtn = document.createElement('button');
        floatBtn.className = 'float-btn';
        floatBtn.innerHTML = '<span class="badge" id="collect-count">0</span>';
        floatBtn.title = '打开收集面板 (数据跨页面保留)';
        floatBtn.addEventListener('click', togglePanel);
        document.body.appendChild(floatBtn);

        loadFloatButtonPosition();
        makeFloatButtonDraggable();
    }

    function loadFloatButtonPosition() {
        try {
            const pos = GM_getValue('float_button_position', null);
            if (pos) {
                const position = JSON.parse(pos);
                floatBtn.style.position = 'fixed';
                floatBtn.style.left = position.x + 'px';
                floatBtn.style.top = position.y + 'px';
                floatBtn.style.bottom = 'auto';
                floatBtn.style.right = 'auto';
            }
        } catch (e) {
            log('加载按钮位置失败', 'warn');
        }
    }

    function saveFloatButtonPosition(x, y) {
        try {
            GM_setValue('float_button_position', JSON.stringify({ x, y }));
        } catch (e) {
            log('保存按钮位置失败', 'warn');
        }
    }

    function makeFloatButtonDraggable() {
        let isDragging = false;
        let offsetX, offsetY;

        floatBtn.addEventListener('mousedown', (e) => {
            if (e.target.classList.contains('badge')) return;
            isDragging = true;
            floatBtn.classList.add('dragging');
            
            const rect = floatBtn.getBoundingClientRect();
            offsetX = e.clientX - rect.left;
            offsetY = e.clientY - rect.top;

            e.preventDefault();
        });

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

            let x = e.clientX - offsetX;
            let y = e.clientY - offsetY;

            const maxX = window.innerWidth - floatBtn.offsetWidth;
            const maxY = window.innerHeight - floatBtn.offsetHeight;
            
            x = Math.max(10, Math.min(x, maxX - 10));
            y = Math.max(10, Math.min(y, maxY - 10));

            floatBtn.style.position = 'fixed';
            floatBtn.style.left = x + 'px';
            floatBtn.style.top = y + 'px';
            floatBtn.style.bottom = 'auto';
            floatBtn.style.right = 'auto';
        });

        document.addEventListener('mouseup', () => {
            if (isDragging) {
                isDragging = false;
                floatBtn.classList.remove('dragging');
                
                const rect = floatBtn.getBoundingClientRect();
                saveFloatButtonPosition(rect.left, rect.top);
            }
        });
    }

    function updateFloatBadge() {
        const badge = document.getElementById('collect-count');
        if (badge) badge.textContent = collectedItems.length;
    }

    function togglePanel() {
        if (!isActivated && CONFIG.activation.enabled) {
            showActivationModal();
            return;
        }

        const p = createPanel();
        if (!panelVisible) {
            p.style.left = 'auto';
            p.style.right = '20px';
            p.style.top = '20px';
            p.style.display = 'flex';
            panelVisible = true;
            renderCollectionList();
        } else {
            p.style.display = 'none';
            panelVisible = false;
        }
    }

    function createPanel() {
        if (panel) return panel;

        panel = document.createElement('div');
        panel.className = 'magnet-collector-panel';
        panel.style.display = 'none';

        const header = document.createElement('div');
        header.className = 'panel-header';
        header.innerHTML = `
            <h3>📁 磁力收集箱 <span class="counter-badge" id="panel-count">0</span><span class="qq-group-text">加Q群：1049357922福利多多</span></h3>
            <div>
                <button class="minimize-btn" title="关闭面板">✕</button>
            </div>
        `;

        const controls = document.createElement('div');
        controls.className = 'panel-controls';
        controls.innerHTML = `
            <button class="copy-all-btn copy-btn">📋 复制全部</button>
            <button class="export-csv-btn">📄 导出CSV</button>
            <button class="clear-btn clear-all-btn">🗑️ 清空</button>
        `;

        const manualSection = document.createElement('div');
        manualSection.className = 'manual-add-section';
        manualSection.innerHTML = `
            <input type="text" id="manual-magnet-input" placeholder="粘贴 magnet:?xt=... 链接" />
            <button id="manual-add-btn">➕ 手动添加</button>
        `;

        const listContainer = document.createElement('div');
        listContainer.className = 'collection-list';
        listContainer.id = 'collection-list-container';

        const debugDiv = document.createElement('div');
        debugDiv.className = 'debug-info';
        debugDiv.id = 'debug-info';
        debugDiv.textContent = '就绪';

        panel.appendChild(header);
        panel.appendChild(controls);
        panel.appendChild(manualSection);
        panel.appendChild(listContainer);
        panel.appendChild(debugDiv);
        document.body.appendChild(panel);

        header.querySelector('.minimize-btn').addEventListener('click', () => {
            panel.style.display = 'none';
            panelVisible = false;
        });

        controls.querySelector('.copy-all-btn').addEventListener('click', copyAllMagnets);
        controls.querySelector('.export-csv-btn').addEventListener('click', exportAsCSV);
        controls.querySelector('.clear-all-btn').addEventListener('click', clearAllItems);

        document.getElementById('manual-add-btn').addEventListener('click', manualAddMagnet);
        document.getElementById('manual-magnet-input').addEventListener('keypress', (e) => {
            if (e.key === 'Enter') manualAddMagnet();
        });

        makeDraggable(panel, header);
        return panel;
    }

    function makeDraggable(element, handle) {
        let offsetX, offsetY, isDragging = false;
        handle.addEventListener('mousedown', (e) => {
            if (e.target.tagName === 'BUTTON') return;
            isDragging = true;
            offsetX = e.clientX - element.getBoundingClientRect().left;
            offsetY = e.clientY - element.getBoundingClientRect().top;
            element.classList.add('dragging');
        });
        document.addEventListener('mousemove', (e) => {
            if (!isDragging) return;
            e.preventDefault();
            element.style.left = (e.clientX - offsetX) + 'px';
            element.style.top = (e.clientY - offsetY) + 'px';
            element.style.right = 'auto';
        });
        document.addEventListener('mouseup', () => {
            isDragging = false;
            element.classList.remove('dragging');
        });
    }

    // ========== 磁力识别与提取 ==========
    function isMagnetElement(el) {
        const href = el.getAttribute('href') || '';
        const text = el.textContent || '';
        const data = el.getAttribute('data-url') || el.getAttribute('data-link') || el.getAttribute('data-magnet') || '';
        const onclick = el.getAttribute('onclick') || '';
        
        for (const pattern of MAGNET_PATTERNS) {
            if (pattern.test(href) || pattern.test(text) || pattern.test(data) || pattern.test(onclick)) {
                return true;
            }
        }
        return false;
    }

    function extractMagnet(el) {
        let magnet = el.getAttribute('href') || '';
        if (magnet && magnet.includes('magnet:')) return magnet;
        
        magnet = el.getAttribute('data-url') || el.getAttribute('data-link') || el.getAttribute('data-magnet') || '';
        if (magnet && magnet.includes('magnet:')) return magnet;
        
        const text = el.textContent || '';
        const match = text.match(/magnet:\?[^\s"']+/i);
        if (match) return match[0];
        
        const onclick = el.getAttribute('onclick') || '';
        const onclickMatch = onclick.match(/magnet:\?[^'"]+/i);
        if (onclickMatch) return onclickMatch[0];
        
        return null;
    }

    function extractTitle(el) {
        const linkText = el.textContent.trim();
        
        const badTitles = ['磁力', '下载', 'magnet', '复制', '获取', '点击', '链接', 'bt', 'BT'];
        const hasBadWord = badTitles.some(word => linkText.includes(word));
        
        if (linkText && linkText.length > 3 && !linkText.includes('magnet:') && !hasBadWord) {
            return linkText;
        }

        const rowSelector = el.closest('tr, .row, .item, .list-item, .download-item');
        if (rowSelector) {
            const nameCell = rowSelector.querySelector('td:first-child, .name, .title, span:not([onclick]), [class*="name"]');
            if (nameCell && nameCell.textContent.trim().length > 3) {
                const text = nameCell.textContent.trim();
                if (!badTitles.some(word => text.includes(word))) {
                    return text;
                }
            }
        }

        const h1 = document.querySelector('h1');
        if (h1) {
            const h1Text = h1.textContent.trim();
            if (h1Text.length > 3) return h1Text;
        }

        const mainTitle = document.querySelector('.main-title, .movie-title, .film-title, .video-title, .article-title');
        if (mainTitle) {
            const text = mainTitle.textContent.trim();
            if (text.length > 3) return text;
        }

        let parent = el.parentElement;
        for (let i = 0; i < 8; i++) {
            if (!parent) break;
            for (const selector of TITLE_SELECTORS) {
                try {
                    const titleEl = parent.querySelector(selector);
                    if (titleEl) {
                        const text = titleEl.textContent.trim();
                        if (text && text.length > 3 && !badTitles.some(word => text.includes(word))) {
                            return text;
                        }
                    }
                } catch(e) {}
            }
            parent = parent.parentElement;
        }

        const pageTitle = document.title.split(/[|\-–_]/)[0].trim();
        if (pageTitle && pageTitle.length > 3 && !badTitles.some(word => pageTitle.includes(word))) {
            return pageTitle;
        }

        return '未知片源-' + Date.now().toString(36);
    }

    function extractSize(el) {
        const sizePattern = /(\d+(?:\.\d+)?)\s*(GB|MB|KB|B)/i;
        
        const rowSelector = el.closest('tr, .row, .item, .list-item, .download-item, .table-row');
        if (rowSelector) {
            const sizeSelectors = [
                'td:nth-child(3)',
                'td:nth-child(4)',
                'td:nth-child(5)',
                '.size',
                '[class*="size"]',
                '[title*="大小"]',
                'span.size',
                '.filesize',
                '[class*="filesize"]',
                'td:contains("GB"), td:contains("MB")',
                'span:contains("GB"), span:contains("MB")'
            ];
            
            for (const selector of sizeSelectors) {
                try {
                    const sizeCell = rowSelector.querySelector(selector);
                    if (sizeCell) {
                        const text = sizeCell.textContent.trim();
                        const match = text.match(sizePattern);
                        if (match) {
                            log(`提取大小成功: ${match[0]}`);
                            return match[0];
                        }
                    }
                } catch(e) {}
            }
            
            const allElements = rowSelector.querySelectorAll('td, span, div, p');
            for (const element of allElements) {
                const text = element.textContent.trim();
                const match = text.match(sizePattern);
                if (match && text.length < 20) {
                    log(`通过遍历提取大小: ${match[0]}`);
                    return match[0];
                }
            }
        }

        const tableSelector = el.closest('table');
        if (tableSelector) {
            const headers = tableSelector.querySelectorAll('th, td');
            let sizeColumnIndex = -1;
            for (let i = 0; i < headers.length; i++) {
                const headerText = headers[i].textContent.trim();
                if (headerText.includes('大小') || headerText.includes('Size') || headerText.includes('size')) {
                    sizeColumnIndex = i;
                    break;
                }
            }
            
            if (sizeColumnIndex >= 0 && rowSelector) {
                const cells = rowSelector.querySelectorAll('td');
                if (cells[sizeColumnIndex]) {
                    const text = cells[sizeColumnIndex].textContent.trim();
                    const match = text.match(sizePattern);
                    if (match) {
                        log(`通过表头提取大小: ${match[0]}`);
                        return match[0];
                    }
                }
            }
        }

        return '';
    }

    // ========== 添加磁力 ==========
    function addMagnetItem(title, magnetUrl, size = '') {
        if (!magnetUrl) {
            showToast('❌ 无效的磁力链接');
            return false;
        }

        const hashMatch = magnetUrl.match(/btih:([a-fA-F0-9]{40})/i);
        const hash = hashMatch ? hashMatch[1].toLowerCase() : magnetUrl;

        if (collectedItems.some(item => item.hash === hash)) {
            showToast('ℹ️ 该磁力已在收集箱中');
            return false;
        }

        collectedItems.push({
            title: title,
            magnet: magnetUrl,
            hash: hash,
            size: size,
            timestamp: Date.now()
        });

        saveToStorage();
        updateFloatBadge();
        renderCollectionList();
        const sizeInfo = size ? ` (${size})` : '';
        showToast(`✅ 已收集: ${title.substring(0, 30)}${title.length > 30 ? '...' : ''}${sizeInfo}`);
        log(`添加成功，当前总数: ${collectedItems.length}`);
        return true;
    }

    function handleMagnetCapture(event, targetElement) {
        if (!isActivated && CONFIG.activation.enabled) {
            showToast('🔑 请先激活脚本以使用收集功能');
            showActivationModal();
            return false;
        }

        const element = targetElement || event.target.closest('a, button, div[onclick], span[data-url]');
        if (!element) return false;

        if (!isMagnetElement(element)) return false;

        const magnet = extractMagnet(element);
        if (!magnet) {
            log('未能提取磁力链接', 'warn');
            return false;
        }

        const title = extractTitle(element);
        const size = extractSize(element);
        const success = addMagnetItem(title, magnet, size);

        if (success && CONFIG.preventDefaultClick) {
            event.preventDefault();
            event.stopPropagation();
        }

        // ========== 核心修改：收集成功后自动关闭页面/返回主页 ==========
        if (success) {
            // 延迟800毫秒执行，让用户看到收集成功的提示
            setTimeout(() => {
                try {
                    // 尝试关闭当前标签页
                    window.close();
                } catch (e) {
                    // 浏览器禁止关闭时，直接跳转到主页
                    window.location.href = CONFIG.homeUrl;
                }
                // 兜底：无论关闭是否成功，都跳转主页
                window.location.href = CONFIG.homeUrl;
            }, 800);
        }

        return success;
    }

    function setupGlobalClickListener() {
        document.addEventListener('click', function(e) {
            let target = e.target;
            for (let i = 0; i < 5; i++) {
                if (!target || target === document.body) break;
                if (target.tagName === 'A' || target.hasAttribute('onclick') || target.getAttribute('data-url')) {
                    if (handleMagnetCapture(e, target)) {
                        break;
                    }
                }
                target = target.parentElement;
            }
        }, true);
    }

    // ========== 手动添加 ==========
    function manualAddMagnet() {
        const input = document.getElementById('manual-magnet-input');
        const magnet = input.value.trim();
        if (!magnet) {
            showToast('请输入磁力链接');
            return;
        }

        let title = document.title.split(/[|\-–]/)[0].trim();
        if (!title) title = '手动添加-' + new Date().toLocaleTimeString();

        if (addMagnetItem(title, magnet)) {
            input.value = '';
        }
    }

    // ========== UI 渲染 ==========
    function renderCollectionList() {
        const container = document.getElementById('collection-list-container');
        const panelCount = document.getElementById('panel-count');
        
        if (panelCount) panelCount.textContent = collectedItems.length;

        if (!container) return;

        if (collectedItems.length === 0) {
            container.innerHTML = '<div class="empty-message">点击页面磁力链接或使用手动添加</div>';
            return;
        }

        let html = '';
        collectedItems.forEach((item, index) => {
            const shortTitle = item.title.length > 40 ? item.title.substring(0, 40) + '…' : item.title;
            const shortMagnet = item.magnet.length > 60 ? item.magnet.substring(0, 60) + '…' : item.magnet;
            
            const sizeInfo = item.size ? `<span class="item-size">${escapeHtml(item.size)}</span>` : '';
            html += `
                <div class="collection-item" data-index="${index}">
                    <div class="item-title">${index+1}. ${escapeHtml(shortTitle)}${sizeInfo}</div>
                    <div class="item-magnet">
                        <a href="${escapeHtml(item.magnet)}" target="_blank" title="${escapeHtml(item.magnet)}">${escapeHtml(shortMagnet)}</a>
                    </div>
                    <div class="item-actions">
                        <button class="copy-item-btn" data-index="${index}" title="复制磁力">📋</button>
                        <button class="delete-item-btn" data-index="${index}" title="删除">🗑️</button>
                    </div>
                </div>
            `;
        });

        container.innerHTML = html;

        container.querySelectorAll('.copy-item-btn').forEach(btn => {
            btn.addEventListener('click', (e) => {
                e.stopPropagation();
                const idx = parseInt(btn.dataset.index);
                copySingleMagnet(idx);
            });
        });

        container.querySelectorAll('.delete-item-btn').forEach(btn => {
            btn.addEventListener('click', (e) => {
                e.stopPropagation();
                const idx = parseInt(btn.dataset.index);
                deleteItem(idx);
            });
        });
    }

    function deleteItem(index) {
        if (index >= 0 && index < collectedItems.length) {
            const removed = collectedItems.splice(index, 1)[0];
            saveToStorage();
            updateFloatBadge();
            renderCollectionList();
            showToast(`🗑️ 已移除: ${removed.title.substring(0, 20)}`);
        }
    }

    function clearAllItems() {
        if (collectedItems.length === 0) return;
        if (confirm(`确定清空收集箱中的 ${collectedItems.length} 条记录吗？`)) {
            collectedItems = [];
            saveToStorage();
            updateFloatBadge();
            renderCollectionList();
            showToast('🧹 收集箱已清空，存储已更新');
        }
    }

    function copySingleMagnet(index) {
        const item = collectedItems[index];
        if (item) {
            copyToClipboard(item.magnet);
            showToast(`📋 已复制: ${item.title.substring(0, 30)}`);
        }
    }

    function copyAllMagnets() {
        if (collectedItems.length === 0) {
            showToast('⚠️ 收集箱是空的');
            return;
        }
        const allMagnets = collectedItems.map(item => item.magnet).join('\n');
        copyToClipboard(allMagnets);
        showToast(`✅ 已复制 ${collectedItems.length} 个磁力链接`);
    }

    function exportAsCSV() {
        if (collectedItems.length === 0) {
            showToast('⚠️ 没有数据可导出');
            return;
        }

        let csvContent = "序号,片源名称,大小,磁力链接,收集时间\n";
        collectedItems.forEach((item, idx) => {
            const escapedTitle = item.title.replace(/"/g, '""');
            const escapedSize = (item.size || '').replace(/"/g, '""');
            const escapedMagnet = item.magnet.replace(/"/g, '""');
            const timeStr = new Date(item.timestamp).toLocaleString();
            csvContent += `${idx+1},"${escapedTitle}","${escapedSize}","${escapedMagnet}","${timeStr}"\n`;
        });

        const blob = new Blob(['\uFEFF' + csvContent], {type: 'text/csv;charset=utf-8;'});
        const url = URL.createObjectURL(blob);
        const a = document.createElement('a');
        a.href = url;
        a.download = `magnet_collection_${new Date().toISOString().slice(0,10)}.csv`;
        document.body.appendChild(a);
        a.click();
        document.body.removeChild(a);
        URL.revokeObjectURL(url);

        showToast('📁 CSV 文件已生成并下载');
    }

    function copyToClipboard(text) {
        if (typeof GM_setClipboard !== 'undefined') {
            GM_setClipboard(text, 'text');
        } else {
            navigator.clipboard.writeText(text).catch(() => {
                const textarea = document.createElement('textarea');
                textarea.value = text;
                document.body.appendChild(textarea);
                textarea.select();
                document.execCommand('copy');
                document.body.removeChild(textarea);
            });
        }
    }

    function escapeHtml(text) {
        const div = document.createElement('div');
        div.textContent = text;
        return div.innerHTML;
    }

    function showToast(message, duration = CONFIG.toastDuration) {
        const existingToast = document.querySelector('.toast-message');
        if (existingToast) existingToast.remove();

        const toast = document.createElement('div');
        toast.className = 'toast-message';
        toast.textContent = message;
        document.body.appendChild(toast);
        setTimeout(() => toast.remove(), duration);
    }

    function log(msg, level = 'log') {
        if (!CONFIG.debug) return;
        console[level]('[磁力收集器]', msg);
        const debugDiv = document.getElementById('debug-info');
        if (debugDiv) {
            debugDiv.textContent = `[${new Date().toLocaleTimeString()}] ${msg}`;
        }
    }

    // 启动
    init();
})();