// 添加到主题的 functions.php 文件
function modown_popup_plugin() {
    if (is_admin()) return;
    
    // 输出用户登录状态到JavaScript
    echo '<script>var modown_is_logged_in = ' . (is_user_logged_in() ? 'true' : 'false') . ';</script>';
    ?>
    
    <style>
    .modown-popup-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.8);
        display: none;
        justify-content: center;
        align-items: center;
        z-index: 9999;
    }
    .modown-popup-overlay.active {
        display: flex;
    }
    .modown-popup-content {
        position: relative;
        background: white;
        border-radius: 10px;
        overflow: hidden;
        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    }
    .modown-popup-close {
        position: absolute;
        top: 10px;
        right: 15px;
        font-size: 24px;
        color: white;
        cursor: pointer;
        z-index: 10;
        width: 30px;
        height: 30px;
        background: rgba(0, 0, 0, 0.5);
        border-radius: 50%;
        display: flex;
        justify-content: center;
        align-items: center;
        line-height: 1;
    }
    .modown-popup-image-link {
        display: block;
        width: 100%;
        height: 100%;
    }
    .modown-popup-image {
        width: 100%;
        height: 100%;
        object-fit: cover;
    }
    
    /* 状态显示样式 */
    .status-indicator {
        padding: 8px 12px;
        margin: 5px 0;
        border-radius: 4px;
        font-size: 14px;
        font-weight: bold;
    }
    .status-active { background: #d4edda; color: #155724; }
    .status-inactive { background: #f8d7da; color: #721c24; }
    .status-warning { background: #fff3cd; color: #856404; }
    .status-info { background: #cce7ff; color: #004085; }
    </style>

    <script>
    class ModownPopup {
        constructor(options) {
            this.options = {
                imageUrl: 'https://images.unsplash.com/photo-1579546929662-711aa81148cf',
                linkUrl: 'https://example.com',
                width: 400,
                height: 600,
                storageKey: 'modown_popup_data',
                ...options
            };
            
            this.init();
        }
        
        init() {
            this.createPopup();
            this.bindEvents();
        }
        
        createPopup() {
            this.overlay = document.createElement('div');
            this.overlay.className = 'modown-popup-overlay';
            
            this.popup = document.createElement('div');
            this.popup.className = 'modown-popup-content';
            this.popup.style.width = `${this.options.width}px`;
            this.popup.style.height = `${this.options.height}px`;
            
            this.closeBtn = document.createElement('div');
            this.closeBtn.className = 'modown-popup-close';
            this.closeBtn.innerHTML = '×';
            
            this.imageLink = document.createElement('a');
            this.imageLink.className = 'modown-popup-image-link';
            this.imageLink.href = this.options.linkUrl;
            this.imageLink.target = '_blank';
            
            this.image = document.createElement('img');
            this.image.className = 'modown-popup-image';
            this.image.src = this.options.imageUrl;
            this.image.alt = '弹窗图片';
            
            this.imageLink.appendChild(this.image);
            this.popup.appendChild(this.closeBtn);
            this.popup.appendChild(this.imageLink);
            this.overlay.appendChild(this.popup);
            
            document.body.appendChild(this.overlay);
        }
        
        bindEvents() {
            this.closeBtn.addEventListener('click', () => {
                this.hide();
                // 永久关闭弹窗
                this.setPermanentlyClosed();
            });
            
            this.overlay.addEventListener('click', (e) => {
                if (e.target === this.overlay) {
                    this.hide();
                    // 永久关闭弹窗
                    this.setPermanentlyClosed();
                }
            });
            
            document.addEventListener('keydown', (e) => {
                if (e.key === 'Escape' && this.overlay.classList.contains('active')) {
                    this.hide();
                    // 永久关闭弹窗
                    this.setPermanentlyClosed();
                }
            });
        }
        
        // 检查是否应该显示弹窗
        shouldShow() {
            // 1. 检查用户是否已登录
            if (!this.isUserLoggedIn()) {
                console.log('用户未登录，不显示弹窗');
                return false;
            }
            
            // 2. 检查是否已经永久关闭
            if (this.isPermanentlyClosed()) {
                console.log('弹窗已被永久关闭');
                return false;
            }
            
            // 3. 检查是否在首次登录后的前3天内
            if (!this.isWithinFirstThreeDays()) {
                console.log('已超过首次登录后的3天期限');
                return false;
            }
            
            console.log('满足所有条件，显示弹窗');
            return true;
        }
        
        // 检查用户是否已登录
        isUserLoggedIn() {
            // 使用PHP传递的变量
            if (typeof modown_is_logged_in !== 'undefined') {
                return modown_is_logged_in;
            }
            
            // 备用检查方法
            if (document.body.classList.contains('logged-in')) {
                return true;
            }
            
            if (document.querySelector('#wp-admin-bar-my-account')) {
                return true;
            }
            
            return false;
        }
        
        // 检查是否在首次登录后的前3天内
        isWithinFirstThreeDays() {
            const popupData = this.getPopupData();
            const now = new Date();
            
            // 如果没有首次登录记录，设置当前时间为首次登录时间
            if (!popupData.firstLoginDate) {
                popupData.firstLoginDate = now.toISOString();
                this.savePopupData(popupData);
                return true;
            }
            
            const firstLoginDate = new Date(popupData.firstLoginDate);
            const timeDiff = now.getTime() - firstLoginDate.getTime();
            const daysDiff = Math.floor(timeDiff / (1000 * 3600 * 24));
            
            return daysDiff < 3; // 3天内返回true
        }
        
        // 检查是否已经永久关闭
        isPermanentlyClosed() {
            const popupData = this.getPopupData();
            return popupData.permanentlyClosed === true;
        }
        
        // 设置为永久关闭
        setPermanentlyClosed() {
            const popupData = this.getPopupData();
            popupData.permanentlyClosed = true;
            this.savePopupData(popupData);
        }
        
        // 获取弹窗数据
        getPopupData() {
            try {
                const data = localStorage.getItem(this.options.storageKey);
                return data ? JSON.parse(data) : {};
            } catch (e) {
                console.error('读取localStorage失败:', e);
                return {};
            }
        }
        
        // 保存弹窗数据
        savePopupData(data) {
            try {
                localStorage.setItem(this.options.storageKey, JSON.stringify(data));
            } catch (e) {
                console.error('保存到localStorage失败:', e);
            }
        }
        
        show() {
            if (this.shouldShow()) {
                this.overlay.classList.add('active');
                return true;
            }
            return false;
        }
        
        hide() {
            this.overlay.classList.remove('active');
        }
        
        // 重置所有设置（用于测试）
        resetSettings() {
            localStorage.removeItem(this.options.storageKey);
            alert('弹窗设置已重置，下次访问将重新开始计算3天期限。');
            location.reload();
        }
    }

    // 初始化弹窗
    document.addEventListener('DOMContentLoaded', function() {
        const popup = new ModownPopup({
            imageUrl: '你的图片URL',
            linkUrl: '你的链接URL'
        });
        
        // 3秒后显示弹窗
        setTimeout(() => {
            popup.show();
        }, 3000);
    });
    </script>
    <br />
<b>Warning</b>:  Cannot modify header information - headers already sent by (output started at /www/wwwroot/www.zdw88.com/wp-content/themes/modown/functions-custom.php:1) in <b>/www/wwwroot/www.zdw88.com/wp-includes/pluggable.php</b> on line <b>1450</b><br />
<br />
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