// ==UserScript==
// @name         小琰Cookie管理工具（Facebook 专属简化备份功能。
// @namespace    http://tampermonkey.net/
// @version      5.3.0
// @description  支持Cookie注入、备份、导入、删除，适配移动端，含Facebook专属简化备份
// @author       小琰
// @match        https://*/*
// @run-at       document-end
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    // 控制台加载日志
    console.log('%c[Cookie管理工具] 已成功加载', 'color: #2196F3; font-weight: bold');

    // 全局配置
    const CONFIG = {
        panelZIndex: 9999,
        watermarkZIndex: 10000,
        warningZIndex: 9998,
        animationDuration: '0.3s',
        cookieExpiresDays: 365,
        // Facebook关键Cookie配置
        facebookKeys: ['c_user', 'xs']
    };

    // 检测是否为Facebook域名
    const isFacebook = () => {
        const hostname = location.hostname.toLowerCase();
        return hostname.includes('facebook.com') || hostname.includes('fb.com');
    };

    // 创建按钮通用函数
    const createButton = (text, bgColor, onClick) => {
        const btn = document.createElement('button');
        btn.textContent = text;
        btn.style.cssText = `
            padding: 10px 15px;
            background: ${bgColor};
            color: white;
            border: none;
            border-radius: 8px;
            cursor: pointer;
            font-size: 14px;
            transition: opacity ${CONFIG.animationDuration};
            box-sizing: border-box;
        `;
        btn.onmouseover = () => btn.style.opacity = '0.8';
        btn.onmouseout = () => btn.style.opacity = '1';
        btn.onclick = onClick;
        return btn;
    };

    // 显示状态信息
    const showStatus = (message, type = 'info') => {
        const statusEl = document.getElementById('cookie-status');
        if (!statusEl) return;
        
        const colors = {
            success: '#4CAF50',
            error: '#F44336',
            info: '#2196F3',
            warning: '#FF9800'
        };
        
        statusEl.textContent = message;
        statusEl.style.color = colors[type] || colors.info;
        
        setTimeout(() => {
            statusEl.textContent = '';
        }, 3000);
    };

    // 解析Cookie字符串
    const parseCookieString = (cookieStr) => {
        const cookies = [];
        const lines = cookieStr.split(/[\n;]/).map(line => line.trim()).filter(Boolean);
        
        lines.forEach(line => {
            const parts = line.split(/[=:]/);
            if (parts.length >= 2) {
                const name = parts[0].trim();
                const value = parts.slice(1).join('=').trim();
                if (name && value) {
                    cookies.push({ name, value });
                }
            }
        });
        
        return cookies;
    };

    // 获取指定Cookie值
    const getCookieValue = (name) => {
        const cookies = document.cookie.split(';');
        for (let cookie of cookies) {
            const [cookieName, cookieValue] = cookie.split('=').map(s => s.trim());
            if (cookieName === name) {
                return cookieValue;
            }
        }
        return null;
    };

    // Cookie注入功能
    const handleCookieInject = () => {
        const textarea = document.getElementById('cookie-input');
        const cookieStr = textarea.value.trim();
        
        if (!cookieStr) {
            showStatus('请输入Cookie内容', 'warning');
            return;
        }
        
        try {
            const cookies = parseCookieString(cookieStr);
            let successCount = 0;
            
            cookies.forEach(({ name, value }) => {
                const expires = new Date();
                expires.setDate(expires.getDate() + CONFIG.cookieExpiresDays);
                document.cookie = `${name}=${value}; path=/; expires=${expires.toUTCString()}`;
                successCount++;
            });
            
            showStatus(`成功注入 ${successCount} 个Cookie`, 'success');
            textarea.value = '';
            console.log(`[Cookie管理工具] 已注入 ${successCount} 个Cookie`);
        } catch (error) {
            showStatus('Cookie注入失败', 'error');
            console.error('[Cookie管理工具] 注入失败:', error);
        }
    };

    // Facebook专属备份功能
    const handleFacebookBackup = () => {
        try {
            const c_user = getCookieValue('c_user');
            const xs = getCookieValue('xs');
            
            if (!c_user || !xs) {
                showStatus('未找到Facebook关键Cookie（c_user或xs）', 'error');
                return;
            }
            
            const fbCookies = `c_user=${c_user};xs=${xs}`;
            const blob = new Blob([fbCookies], { type: 'text/plain' });
            const url = URL.createObjectURL(blob);
            const a = document.createElement('a');
            a.href = url;
            a.download = `facebook_cookies_${Date.now()}.txt`;
            a.click();
            URL.revokeObjectURL(url);
            
            showStatus('Facebook关键Cookie备份成功', 'success');
            console.log('[Cookie管理工具] 已备份Facebook关键Cookie (c_user, xs)');
        } catch (error) {
            showStatus('Facebook Cookie备份失败', 'error');
            console.error('[Cookie管理工具] Facebook备份失败:', error);
        }
    };

    // 通用Cookie备份功能
    const handleCookieBackup = () => {
        try {
            const cookies = document.cookie;
            if (!cookies) {
                showStatus('当前网站没有Cookie可备份', 'warning');
                return;
            }
            
            const blob = new Blob([cookies], { type: 'text/plain' });
            const url = URL.createObjectURL(blob);
            const a = document.createElement('a');
            a.href = url;
            a.download = `cookies_${location.hostname}_${Date.now()}.txt`;
            a.click();
            URL.revokeObjectURL(url);
            
            showStatus('Cookie备份成功', 'success');
            console.log('[Cookie管理工具] 已备份Cookie');
        } catch (error) {
            showStatus('Cookie备份失败', 'error');
            console.error('[Cookie管理工具] 备份失败:', error);
        }
    };

    // Cookie导入功能
    const handleCookieImport = (file) => {
        const reader = new FileReader();
        reader.onload = (e) => {
            const content = e.target.result;
            document.getElementById('cookie-input').value = content;
            showStatus('Cookie文件已加载到输入框', 'success');
        };
        reader.onerror = () => {
            showStatus('文件读取失败', 'error');
        };
        reader.readAsText(file);
    };

    // 触发文件选择
    const triggerFileInput = () => {
        const fileInput = document.getElementById('cookie-file-input');
        if (fileInput) {
            fileInput.click();
        }
    };

    // Cookie删除功能
    const handleCookieDelete = () => {
        if (!confirm('确定要删除当前网站的所有Cookie吗？此操作不可恢复！')) {
            return;
        }
        
        try {
            const cookies = document.cookie.split(';');
            let deleteCount = 0;
            
            cookies.forEach(cookie => {
                const name = cookie.split('=')[0].trim();
                if (name) {
                    document.cookie = `${name}=; path=/; expires=Thu, 01 Jan 1970 00:00:00 UTC`;
                    document.cookie = `${name}=; path=/; domain=${location.hostname}; expires=Thu, 01 Jan 1970 00:00:00 UTC`;
                    deleteCount++;
                }
            });
            
            showStatus(`已删除 ${deleteCount} 个Cookie`, 'success');
            console.log(`[Cookie管理工具] 已删除 ${deleteCount} 个Cookie`);
            setTimeout(() => location.reload(), 1500);
        } catch (error) {
            showStatus('Cookie删除失败', 'error');
            console.error('[Cookie管理工具] 删除失败:', error);
        }
    };

    // 创建主面板
    const createMainPanel = () => {
        const panel = document.createElement('div');
        panel.id = 'cookie-manager-panel';
        panel.style.cssText = `
            position: fixed;
            bottom: 20px;
            right: 20px;
            width: 90%;
            max-width: 400px;
            background: #fff;
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.15);
            padding: 20px;
            z-index: ${CONFIG.panelZIndex};
            transform: translateY(120%);
            transition: transform ${CONFIG.animationDuration} ease;
            overflow: hidden;
            box-sizing: border-box;
        `;
        panel.setAttribute('aria-label', 'Cookie管理面板');

        // 面板标题
        const title = document.createElement('h3');
        title.textContent = 'Cookie管理工具';
        title.style.cssText = 'margin: 0 0 15px 0; color: #333; font-size: 18px; text-align: center;';
        panel.appendChild(title);

        // Facebook提示（仅在Facebook显示）
        if (isFacebook()) {
            const fbTip = document.createElement('div');
            fbTip.style.cssText = `
                background: #E3F2FD;
                border-left: 4px solid #2196F3;
                padding: 10px;
                margin-bottom: 15px;
                border-radius: 4px;
                font-size: 13px;
                color: #1976D2;
            `;
            fbTip.textContent = '🎯 已检测到Facebook，可使用简化备份功能';
            panel.appendChild(fbTip);
        }

        // Cookie输入区域
        const inputContainer = document.createElement('div');
        inputContainer.style.cssText = 'margin-bottom: 15px;';
        
        const inputLabel = document.createElement('label');
        inputLabel.textContent = '粘贴Cookie内容：';
        inputLabel.style.cssText = 'display: block; margin-bottom: 8px; color: #666; font-size: 14px;';
        inputLabel.setAttribute('for', 'cookie-input');
        inputContainer.appendChild(inputLabel);
        
        const textarea = document.createElement('textarea');
        textarea.id = 'cookie-input';
        textarea.placeholder = '支持格式：一行一个Cookie / 分号分隔字符串 / 带属性完整Cookie';
        textarea.style.cssText = `
            width: 100%;
            height: 120px;
            padding: 10px;
            border: 1px solid #ddd;
            border-radius: 8px;
            font-size: 14px;
            resize: vertical;
            box-sizing: border-box;
            outline: none;
        `;
        textarea.setAttribute('aria-describedby', 'cookie-input-desc');
        inputContainer.appendChild(textarea);
        
        const inputDesc = document.createElement('small');
        inputDesc.id = 'cookie-input-desc';
        inputDesc.textContent = '支持自动解析name、value和属性（path、domain等）';
        inputDesc.style.cssText = 'display: block; margin-top: 5px; color: #999; font-size: 12px;';
        inputContainer.appendChild(inputDesc);
        panel.appendChild(inputContainer);

        // 按钮区域
        const btnContainer = document.createElement('div');
        btnContainer.style.cssText = isFacebook() 
            ? 'display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 15px;'
            : 'display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 15px;';
        
        // 注入按钮
        const injectBtn = createButton('注入Cookie', '#4CAF50', () => handleCookieInject());
        btnContainer.appendChild(injectBtn);
        
        // 备份按钮（Facebook显示两个备份按钮）
        if (isFacebook()) {
            const fbBackupBtn = createButton('备份关键Cookie', '#1877F2', () => handleFacebookBackup());
            btnContainer.appendChild(fbBackupBtn);
            
            const fullBackupBtn = createButton('完整备份', '#2196F3', () => handleCookieBackup());
            btnContainer.appendChild(fullBackupBtn);
        } else {
            const backupBtn = createButton('备份Cookie', '#2196F3', () => handleCookieBackup());
            btnContainer.appendChild(backupBtn);
        }
        
        // 导入按钮
        const importBtn = createButton('导入Cookie', '#FF9800', () => triggerFileInput());
        btnContainer.appendChild(importBtn);
        
        // 删除按钮
        const deleteBtn = createButton('删除Cookie', '#F44336', () => handleCookieDelete());
        btnContainer.appendChild(deleteBtn);
        
        panel.appendChild(btnContainer);

        // 状态提示
        const statusEl = document.createElement('div');
        statusEl.id = 'cookie-status';
        statusEl.style.cssText = `
            height: 20px;
            text-align: center;
            font-size: 14px;
            margin-top: 10px;
        `;
        panel.appendChild(statusEl);

        // 关闭按钮
        const closeBtn = document.createElement('button');
        closeBtn.textContent = '×';
        closeBtn.style.cssText = `
            position: absolute;
            top: 10px;
            right: 10px;
            background: transparent;
            border: none;
            font-size: 20px;
            cursor: pointer;
            color: #999;
            width: 30px;
            height: 30px;
            line-height: 30px;
            padding: 0;
            border-radius: 50%;
            transition: background ${CONFIG.animationDuration};
        `;
        closeBtn.setAttribute('aria-label', '关闭面板');
        closeBtn.onmouseover = () => closeBtn.style.background = 'rgba(0,0,0,0.05)';
        closeBtn.onmouseout = () => closeBtn.style.background = 'transparent';
        closeBtn.onclick = () => togglePanel(false);
        panel.appendChild(closeBtn);

        // 文件输入（隐藏）
        const fileInput = document.createElement('input');
        fileInput.type = 'file';
        fileInput.id = 'cookie-file-input';
        fileInput.accept = '.txt';
        fileInput.style.display = 'none';
        fileInput.onchange = (e) => {
            const file = e.target.files[0];
            if (file) {
                handleCookieImport(file);
            }
        };
        panel.appendChild(fileInput);

        document.body.appendChild(panel);
    };

    // 创建浮动按钮
    const createFloatingButton = () => {
        const btn = document.createElement('button');
        btn.id = 'cookie-manager-btn';
        btn.textContent = '🍪';
        btn.style.cssText = `
            position: fixed;
            bottom: 20px;
            right: 20px;
            width: 60px;
            height: 60px;
            background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
            color: white;
            border: none;
            border-radius: 50%;
            font-size: 28px;
            cursor: pointer;
            box-shadow: 0 4px 15px rgba(0,0,0,0.2);
            z-index: ${CONFIG.panelZIndex + 1};
            transition: all ${CONFIG.animationDuration};
        `;
        btn.setAttribute('aria-label', '打开Cookie管理工具');
        btn.onmouseover = () => {
            btn.style.transform = 'scale(1.1)';
            btn.style.boxShadow = '0 6px 20px rgba(0,0,0,0.3)';
        };
        btn.onmouseout = () => {
            btn.style.transform = 'scale(1)';
            btn.style.boxShadow = '0 4px 15px rgba(0,0,0,0.2)';
        };
        btn.onclick = () => togglePanel(true);
        document.body.appendChild(btn);
    };

    // 切换面板显示
    const togglePanel = (show) => {
        const panel = document.getElementById('cookie-manager-panel');
        const btn = document.getElementById('cookie-manager-btn');
        
        if (show) {
            panel.style.transform = 'translateY(0)';
            btn.style.display = 'none';
        } else {
            panel.style.transform = 'translateY(120%)';
            btn.style.display = 'block';
        }
    };

    // 初始化
    const init = () => {
        if (document.readyState === 'loading') {
            document.addEventListener('DOMContentLoaded', () => {
                createMainPanel();
                createFloatingButton();
            });
        } else {
            createMainPanel();
            createFloatingButton();
        }
    };

    init();
})();