<?php

if (!defined('ABSPATH')) {
    exit;
}

class WPDD_Shortcodes {
    
    public static function init() {
        add_shortcode('wpdd_shop', array(__CLASS__, 'shop_shortcode'));
        add_shortcode('wpdd_customer_purchases', array(__CLASS__, 'customer_purchases_shortcode'));
        add_shortcode('wpdd_checkout', array(__CLASS__, 'checkout_shortcode'));
        add_shortcode('wpdd_thank_you', array(__CLASS__, 'thank_you_shortcode'));
        add_shortcode('wpdd_product', array(__CLASS__, 'single_product_shortcode'));
        add_shortcode('wpdd_buy_button', array(__CLASS__, 'buy_button_shortcode'));
        add_shortcode('wpdd_creator_dashboard', array(__CLASS__, 'creator_dashboard_shortcode'));
        
        // Add buy button to single product pages automatically
        add_filter('the_content', array(__CLASS__, 'add_buy_button_to_product'));
    }
    
    public static function shop_shortcode($atts) {
        $atts = shortcode_atts(array(
            'columns' => 3,
            'per_page' => 12,
            'category' => '',
            'orderby' => 'date',
            'order' => 'DESC',
            'show_filters' => 'yes'
        ), $atts);
        
        ob_start();
        
        $paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
        
        $args = array(
            'post_type' => 'wpdd_product',
            'posts_per_page' => $atts['per_page'],
            'paged' => $paged,
            'orderby' => $atts['orderby'],
            'order' => $atts['order'],
            'post_status' => 'publish'
        );
        
        if (!empty($atts['category'])) {
            $args['tax_query'] = array(
                array(
                    'taxonomy' => 'wpdd_product_category',
                    'field' => 'slug',
                    'terms' => explode(',', $atts['category'])
                )
            );
        }
        
        // Handle search
        $search_performed = false;
        if (isset($_GET['wpdd_search']) && !empty($_GET['wpdd_search'])) {
            $search_term = sanitize_text_field($_GET['wpdd_search']);
            $search_performed = true;
            
            // Bypass WordPress search and do direct query
            global $wpdb;
            $search_like = '%' . $wpdb->esc_like($search_term) . '%';
            
            $matching_ids = $wpdb->get_col($wpdb->prepare(
                "SELECT ID FROM {$wpdb->posts} 
                WHERE post_type = 'wpdd_product' 
                AND post_status = 'publish'
                AND (post_title LIKE %s OR post_content LIKE %s)",
                $search_like,
                $search_like
            ));
            
            // Add debug output
            if (current_user_can('manage_options')) {
                echo "<!-- DEBUG: Search for '$search_term' found IDs: " . implode(', ', $matching_ids) . " -->";
            }
            
            if (!empty($matching_ids)) {
                // Found matching products
                $args['post__in'] = $matching_ids;
                // Only set orderby to post__in if no sort parameter is provided
                if (!isset($_GET['wpdd_sort']) || empty($_GET['wpdd_sort'])) {
                    $args['orderby'] = 'post__in';
                }
            } else {
                // No matches - force empty result
                $args['post__in'] = array(-1); // Use -1 instead of 0
            }
        }
        
        if (isset($_GET['wpdd_category']) && !empty($_GET['wpdd_category'])) {
            $args['tax_query'] = array(
                array(
                    'taxonomy' => 'wpdd_product_category',
                    'field' => 'slug',
                    'terms' => sanitize_text_field($_GET['wpdd_category'])
                )
            );
        }
        
        // Handle creator filter
        if (isset($_GET['wpdd_creator']) && !empty($_GET['wpdd_creator'])) {
            $args['author'] = intval($_GET['wpdd_creator']);
        }
        
        if (isset($_GET['wpdd_sort']) && !empty($_GET['wpdd_sort'])) {
            switch ($_GET['wpdd_sort']) {
                case 'price_low':
                    $args['meta_key'] = '_wpdd_price';
                    $args['orderby'] = 'meta_value_num';
                    $args['order'] = 'ASC';
                    break;
                case 'price_high':
                    $args['meta_key'] = '_wpdd_price';
                    $args['orderby'] = 'meta_value_num';
                    $args['order'] = 'DESC';
                    break;
                case 'newest':
                    $args['orderby'] = 'date';
                    $args['order'] = 'DESC';
                    break;
                case 'popular':
                    $args['meta_key'] = '_wpdd_sales_count';
                    $args['orderby'] = 'meta_value_num';
                    $args['order'] = 'DESC';
                    break;
            }
        }
        
        $query = new WP_Query($args);
        
        // Debug output for admins
        if (current_user_can('manage_options') && isset($_GET['debug']) && $_GET['debug'] == '1') {
            echo '<div style="background: #fff; border: 1px solid #ccc; padding: 10px; margin: 10px 0;">';
            echo '<h4>Debug Info (Admin Only)</h4>';
            echo '<strong>GET Parameters:</strong><br>' . print_r($_GET, true) . '<br>';
            echo '<strong>Query Args:</strong><br>' . print_r($args, true) . '<br>';
            echo '<strong>Found Posts:</strong> ' . $query->found_posts . '<br>';
            echo '</div>';
        }
        ?>
        
        <div class="wpdd-shop-container">
            <?php if ($atts['show_filters'] === 'yes') : ?>
                <div class="wpdd-shop-filters">
                    <form method="get" class="wpdd-filter-form">
                        <?php
                        // Preserve other query parameters but exclude filter and pagination params
                        $query_args = $_GET;
                        
                        // Add hidden fields for non-filter params
                        foreach ($query_args as $key => $value) {
                            if (!in_array($key, array('wpdd_search', 'wpdd_category', 'wpdd_creator', 'wpdd_sort', 'paged'))) {
                                if (is_array($value)) {
                                    foreach ($value as $sub_value) {
                                        echo '<input type="hidden" name="' . esc_attr($key) . '[]" value="' . esc_attr($sub_value) . '" />';
                                    }
                                } else {
                                    echo '<input type="hidden" name="' . esc_attr($key) . '" value="' . esc_attr($value) . '" />';
                                }
                            }
                        }
                        ?>
                        <div class="wpdd-filter-row">
                            <input type="text" name="wpdd_search" 
                                   placeholder="<?php _e('Search products...', 'wp-digital-download'); ?>" 
                                   value="<?php echo isset($_GET['wpdd_search']) ? esc_attr($_GET['wpdd_search']) : ''; ?>" />
                            
                            <select name="wpdd_category">
                                <option value=""><?php _e('All Categories', 'wp-digital-download'); ?></option>
                                <?php
                                $categories = get_terms(array(
                                    'taxonomy' => 'wpdd_product_category',
                                    'hide_empty' => true
                                ));
                                
                                if (!is_wp_error($categories) && !empty($categories)) {
                                    foreach ($categories as $category) {
                                        printf(
                                            '<option value="%s" %s>%s</option>',
                                            esc_attr($category->slug),
                                            selected(isset($_GET['wpdd_category']) && $_GET['wpdd_category'] == $category->slug, true, false),
                                            esc_html($category->name)
                                        );
                                    }
                                }
                                ?>
                            </select>
                            
                            <select name="wpdd_sort">
                                <option value=""><?php _e('Default sorting', 'wp-digital-download'); ?></option>
                                <option value="newest" <?php selected(isset($_GET['wpdd_sort']) && $_GET['wpdd_sort'] == 'newest'); ?>>
                                    <?php _e('Newest first', 'wp-digital-download'); ?>
                                </option>
                                <option value="price_low" <?php selected(isset($_GET['wpdd_sort']) && $_GET['wpdd_sort'] == 'price_low'); ?>>
                                    <?php _e('Price: Low to High', 'wp-digital-download'); ?>
                                </option>
                                <option value="price_high" <?php selected(isset($_GET['wpdd_sort']) && $_GET['wpdd_sort'] == 'price_high'); ?>>
                                    <?php _e('Price: High to Low', 'wp-digital-download'); ?>
                                </option>
                                <option value="popular" <?php selected(isset($_GET['wpdd_sort']) && $_GET['wpdd_sort'] == 'popular'); ?>>
                                    <?php _e('Most Popular', 'wp-digital-download'); ?>
                                </option>
                            </select>
                            
                            <button type="submit" class="wpdd-filter-submit">
                                <?php _e('Filter', 'wp-digital-download'); ?>
                            </button>
                        </div>
                    </form>
                </div>
            <?php endif; ?>
            
            <?php if ($query->have_posts()) : ?>
                <div class="wpdd-products-grid wpdd-columns-<?php echo esc_attr($atts['columns']); ?>">
                    <?php while ($query->have_posts()) : $query->the_post(); ?>
                        <?php self::render_product_card(get_the_ID()); ?>
                    <?php endwhile; ?>
                </div>
                
                <div class="wpdd-pagination">
                    <?php
                    // Build pagination URL with current filter parameters
                    $pagination_args = array();
                    if (isset($_GET['wpdd_search']) && $_GET['wpdd_search']) {
                        $pagination_args['wpdd_search'] = $_GET['wpdd_search'];
                    }
                    if (isset($_GET['wpdd_category']) && $_GET['wpdd_category']) {
                        $pagination_args['wpdd_category'] = $_GET['wpdd_category'];
                    }
                    if (isset($_GET['wpdd_creator']) && $_GET['wpdd_creator']) {
                        $pagination_args['wpdd_creator'] = $_GET['wpdd_creator'];
                    }
                    if (isset($_GET['wpdd_sort']) && $_GET['wpdd_sort']) {
                        $pagination_args['wpdd_sort'] = $_GET['wpdd_sort'];
                    }
                    
                    $base_url = get_permalink();
                    if (!empty($pagination_args)) {
                        $base_url = add_query_arg($pagination_args, $base_url);
                        $base_url = add_query_arg('paged', '%#%', $base_url);
                    } else {
                        $base_url = add_query_arg('paged', '%#%', $base_url);
                    }
                    
                    echo paginate_links(array(
                        'base' => $base_url,
                        'total' => $query->max_num_pages,
                        'current' => $paged,
                        'format' => '',
                        'prev_text' => __('&laquo; Previous', 'wp-digital-download'),
                        'next_text' => __('Next &raquo;', 'wp-digital-download'),
                    ));
                    ?>
                </div>
            <?php else : ?>
                <p class="wpdd-no-products">
                    <?php _e('No products found.', 'wp-digital-download'); ?>
                </p>
            <?php endif; ?>
            
            <?php wp_reset_postdata(); ?>
        </div>
        
        <?php
        return ob_get_clean();
    }
    
    private static function render_product_card($product_id) {
        $product = get_post($product_id);
        $price = get_post_meta($product_id, '_wpdd_price', true);
        $sale_price = get_post_meta($product_id, '_wpdd_sale_price', true);
        $is_free = get_post_meta($product_id, '_wpdd_is_free', true);
        $creator = get_userdata($product->post_author);
        ?>
        <div class="wpdd-product-card">
            <div class="wpdd-product-image">
                <?php if (has_post_thumbnail($product_id)) : ?>
                    <a href="<?php echo get_permalink($product_id); ?>">
                        <?php echo get_the_post_thumbnail($product_id, 'medium'); ?>
                    </a>
                <?php else : ?>
                    <a href="<?php echo get_permalink($product_id); ?>">
                        <img src="<?php echo WPDD_PLUGIN_URL; ?>assets/images/placeholder.png" 
                             alt="<?php echo esc_attr($product->post_title); ?>" />
                    </a>
                <?php endif; ?>
            </div>
            
            <div class="wpdd-product-info">
                <h3 class="wpdd-product-title">
                    <a href="<?php echo get_permalink($product_id); ?>">
                        <?php echo esc_html($product->post_title); ?>
                    </a>
                </h3>
                
                <div class="wpdd-product-meta">
                    <span class="wpdd-product-creator">
                        <?php _e('by', 'wp-digital-download'); ?> 
                        <?php 
                        $shop_page_id = get_option('wpdd_shop_page_id');
                        $shop_url = $shop_page_id ? get_permalink($shop_page_id) : home_url('/shop/');
                        $creator_filter_url = add_query_arg('wpdd_creator', $creator->ID, $shop_url);
                        ?>
                        <a href="<?php echo esc_url($creator_filter_url); ?>"><?php echo esc_html($creator->display_name); ?></a>
                    </span>
                </div>
                
                <div class="wpdd-product-excerpt">
                    <?php echo wp_trim_words($product->post_excerpt ?: $product->post_content, 20); ?>
                </div>
                
                <div class="wpdd-product-price">
                    <?php if ($is_free) : ?>
                        <span class="wpdd-price-free"><?php _e('Free', 'wp-digital-download'); ?></span>
                    <?php elseif ($sale_price && $sale_price < $price) : ?>
                        <span class="wpdd-price-regular wpdd-price-strike">$<?php echo number_format($price, 2); ?></span>
                        <span class="wpdd-price-sale">$<?php echo number_format($sale_price, 2); ?></span>
                    <?php else : ?>
                        <span class="wpdd-price-regular">$<?php echo number_format($price, 2); ?></span>
                    <?php endif; ?>
                </div>
                
                <div class="wpdd-product-actions">
                    <a href="<?php echo get_permalink($product_id); ?>" class="wpdd-btn wpdd-btn-view">
                        <?php _e('View Details', 'wp-digital-download'); ?>
                    </a>
                    <?php 
                    if ($is_free) {
                        $button_text = __('Free Download', 'wp-digital-download');
                    } else {
                        $actual_price = ($sale_price && $sale_price < $price) ? $sale_price : $price;
                        $button_text = sprintf(__('Buy - $%s', 'wp-digital-download'), number_format($actual_price, 2));
                    }
                    echo self::render_buy_button($product_id, $button_text, 'wpdd-btn wpdd-btn-buy');
                    ?>
                </div>
            </div>
        </div>
        <?php
    }
    
    public static function customer_purchases_shortcode($atts) {
        global $wpdb;
        
        // Check if viewing by email (for guest purchases)
        if (isset($_GET['customer_email']) && isset($_GET['key'])) {
            $email = sanitize_email($_GET['customer_email']);
            $key = sanitize_text_field($_GET['key']);
            
            // Verify the key (simple hash check)
            $expected_key = substr(md5($email . AUTH_KEY), 0, 10);
            if ($key !== $expected_key) {
                return '<p class="wpdd-error">' . __('Invalid access key.', 'wp-digital-download') . '</p>';
            }
            
            $orders = $wpdb->get_results($wpdb->prepare(
                "SELECT o.*, p.post_title as product_name, l.license_key,
                        (SELECT COUNT(*) FROM {$wpdb->prefix}wpdd_downloads d WHERE d.order_id = o.id) as download_count
                 FROM {$wpdb->prefix}wpdd_orders o
                 LEFT JOIN {$wpdb->posts} p ON o.product_id = p.ID
                 LEFT JOIN {$wpdb->prefix}wpdd_licenses l ON o.id = l.order_id
                 WHERE o.customer_email = %s 
                 AND o.status = 'completed'
                 ORDER BY o.purchase_date DESC",
                $email
            ));
            
        } elseif (is_user_logged_in()) {
            $current_user = wp_get_current_user();
            
            // Get orders by user ID or email (to include guest purchases before account creation)
            $orders = $wpdb->get_results($wpdb->prepare(
                "SELECT o.*, p.post_title as product_name, l.license_key,
                        (SELECT COUNT(*) FROM {$wpdb->prefix}wpdd_downloads d WHERE d.order_id = o.id) as download_count
                 FROM {$wpdb->prefix}wpdd_orders o
                 LEFT JOIN {$wpdb->posts} p ON o.product_id = p.ID
                 LEFT JOIN {$wpdb->prefix}wpdd_licenses l ON o.id = l.order_id
                 WHERE (o.customer_id = %d OR o.customer_email = %s)
                 AND o.status = 'completed'
                 ORDER BY o.purchase_date DESC",
                $current_user->ID,
                $current_user->user_email
            ));
            
        } else {
            return '<p class="wpdd-login-required">' . 
                   sprintf(
                       __('Please <a href="%s">login</a> to view your purchases.', 'wp-digital-download'),
                       wp_login_url(get_permalink())
                   ) . '</p>';
        }
        
        ob_start();
        ?>
        <div class="wpdd-customer-purchases">
            <h2><?php _e('My Purchases', 'wp-digital-download'); ?></h2>
            
            <?php if ($orders) : ?>
                <table class="wpdd-purchases-table">
                    <thead>
                        <tr>
                            <th><?php _e('Order #', 'wp-digital-download'); ?></th>
                            <th><?php _e('Product', 'wp-digital-download'); ?></th>
                            <th><?php _e('Purchase Date', 'wp-digital-download'); ?></th>
                            <th><?php _e('Amount', 'wp-digital-download'); ?></th>
                            <th><?php _e('Downloads', 'wp-digital-download'); ?></th>
                            <th><?php _e('Actions', 'wp-digital-download'); ?></th>
                        </tr>
                    </thead>
                    <tbody>
                        <?php foreach ($orders as $order) : ?>
                            <?php
                            $download_limit = get_post_meta($order->product_id, '_wpdd_download_limit', true);
                            $download_limit = $download_limit ?: 0; // Convert empty string to 0 (unlimited)
                            $download_expiry = get_post_meta($order->product_id, '_wpdd_download_expiry', true);
                            $is_expired = false;
                            
                            if ($download_expiry > 0) {
                                $expiry_date = date('Y-m-d H:i:s', strtotime($order->purchase_date . ' + ' . $download_expiry . ' days'));
                                $is_expired = current_time('mysql') > $expiry_date;
                            }
                            
                            // Ensure download_count is a number
                            $current_downloads = (int) $order->download_count;
                            $can_download = !$is_expired && ($download_limit == 0 || $current_downloads < $download_limit);
                            ?>
                            <tr>
                                <td><?php echo esc_html($order->order_number); ?></td>
                                <td>
                                    <a href="<?php echo get_permalink($order->product_id); ?>">
                                        <?php echo esc_html($order->product_name); ?>
                                    </a>
                                </td>
                                <td><?php echo date_i18n(get_option('date_format'), strtotime($order->purchase_date)); ?></td>
                                <td>$<?php echo number_format($order->amount, 2); ?></td>
                                <td>
                                    <?php 
                                    if ($download_limit > 0) {
                                        echo sprintf('%d / %d', $current_downloads, $download_limit);
                                    } else {
                                        echo sprintf('%d / %s', $current_downloads, __('unlimited', 'wp-digital-download'));
                                    }
                                    ?>
                                </td>
                                <td>
                                    <?php if ($can_download) : ?>
                                        <?php
                                        // Build download URL with appropriate parameters
                                        $download_args = array('wpdd_download' => $order->id);
                                        
                                        // For guest access, include email and key
                                        if (isset($_GET['customer_email']) && isset($_GET['key'])) {
                                            $download_args['customer_email'] = $_GET['customer_email'];
                                            $download_args['key'] = $_GET['key'];
                                        }
                                        
                                        $download_url = wp_nonce_url(
                                            add_query_arg($download_args),
                                            'wpdd_download_' . $order->id
                                        );
                                        ?>
                                        <a href="<?php echo esc_url($download_url); ?>" class="wpdd-btn wpdd-btn-download">
                                            <?php _e('Download', 'wp-digital-download'); ?>
                                        </a>
                                    <?php else : ?>
                                        <span class="wpdd-download-expired">
                                            <?php 
                                            if ($is_expired) {
                                                _e('Expired', 'wp-digital-download');
                                            } else {
                                                _e('Limit Reached', 'wp-digital-download');
                                            }
                                            ?>
                                        </span>
                                    <?php endif; ?>
                                </td>
                            </tr>
                            <?php if (!empty($order->license_key)) : ?>
                                <tr class="wpdd-license-row">
                                    <td colspan="6" class="wpdd-license-cell">
                                        <div class="wpdd-license-info">
                                            <small><?php _e('License Key:', 'wp-digital-download'); ?></small>
                                            <code class="wpdd-license-key"><?php echo esc_html($order->license_key); ?></code>
                                            <button type="button" class="wpdd-copy-license" data-license="<?php echo esc_attr($order->license_key); ?>" title="<?php _e('Copy to clipboard', 'wp-digital-download'); ?>">
                                                <i class="fas fa-copy"></i>
                                            </button>
                                        </div>
                                    </td>
                                </tr>
                            <?php endif; ?>
                        <?php endforeach; ?>
                    </tbody>
                </table>
            <?php else : ?>
                <p><?php _e('You have not purchased any products yet.', 'wp-digital-download'); ?></p>
                <p><a href="<?php echo get_option('wpdd_shop_page_id') ? get_permalink(get_option('wpdd_shop_page_id')) : home_url(); ?>" 
                      class="wpdd-btn wpdd-btn-primary">
                    <?php _e('Browse Products', 'wp-digital-download'); ?>
                </a></p>
            <?php endif; ?>
        </div>
        <?php
        return ob_get_clean();
    }
    
    public static function checkout_shortcode($atts) {
        if (!isset($_GET['product_id'])) {
            return '<p>' . __('No product selected for checkout.', 'wp-digital-download') . '</p>';
        }
        
        $product_id = intval($_GET['product_id']);
        $product = get_post($product_id);
        
        if (!$product || $product->post_type !== 'wpdd_product') {
            return '<p>' . __('Invalid product.', 'wp-digital-download') . '</p>';
        }
        
        $price = get_post_meta($product_id, '_wpdd_price', true);
        $sale_price = get_post_meta($product_id, '_wpdd_sale_price', true);
        $is_free = get_post_meta($product_id, '_wpdd_is_free', true);
        $final_price = ($sale_price && $sale_price < $price) ? $sale_price : $price;
        
        ob_start();
        ?>
        <div class="wpdd-checkout">
            <h2><?php _e('Checkout', 'wp-digital-download'); ?></h2>
            
            <div class="wpdd-checkout-product">
                <h3><?php echo esc_html($product->post_title); ?></h3>
                <?php if (has_post_thumbnail($product_id)) : ?>
                    <?php echo get_the_post_thumbnail($product_id, 'thumbnail'); ?>
                <?php endif; ?>
                <div class="wpdd-checkout-price">
                    <?php if ($is_free) : ?>
                        <span><?php _e('Free', 'wp-digital-download'); ?></span>
                    <?php else : ?>
                        <span><?php _e('Total:', 'wp-digital-download'); ?> $<?php echo number_format($final_price, 2); ?></span>
                    <?php endif; ?>
                </div>
            </div>
            
            <form id="wpdd-checkout-form" method="post" data-product-free="<?php echo $is_free ? '1' : '0'; ?>">
                <?php wp_nonce_field('wpdd_checkout', 'wpdd_checkout_nonce'); ?>
                <input type="hidden" name="product_id" value="<?php echo $product_id; ?>" />
                
                <?php if (!is_user_logged_in()) : ?>
                    <div class="wpdd-checkout-section">
                        <h4><?php _e('Customer Information', 'wp-digital-download'); ?></h4>
                        
                        <p>
                            <label for="customer_email"><?php _e('Email Address', 'wp-digital-download'); ?> *</label>
                            <input type="email" id="customer_email" name="customer_email" required />
                        </p>
                        
                        <p>
                            <label for="customer_name"><?php _e('Full Name', 'wp-digital-download'); ?> *</label>
                            <input type="text" id="customer_name" name="customer_name" required />
                        </p>
                        
                        <p>
                            <label>
                                <input type="checkbox" name="create_account" value="1" />
                                <?php _e('Create an account for future purchases', 'wp-digital-download'); ?>
                            </label>
                        </p>
                    </div>
                <?php endif; ?>
                
                <?php if (!$is_free) : ?>
                    <div class="wpdd-checkout-section">
                        <h4><?php _e('Payment Method', 'wp-digital-download'); ?></h4>
                        <div id="wpdd-paypal-button"></div>
                    </div>
                <?php else : ?>
                    <button type="submit" class="wpdd-btn wpdd-btn-primary wpdd-btn-large wpdd-free-download-btn" data-product-id="<?php echo $product_id; ?>">
                        <?php _e('Get Free Download', 'wp-digital-download'); ?>
                    </button>
                <?php endif; ?>
            </form>
        </div>
        <?php
        return ob_get_clean();
    }
    
    public static function thank_you_shortcode($atts) {
        if (!isset($_GET['order_id'])) {
            return '<p>' . __('Invalid order.', 'wp-digital-download') . '</p>';
        }
        
        global $wpdb;
        $order_id = sanitize_text_field($_GET['order_id']);
        
        // Get order details along with download token
        $order = $wpdb->get_row($wpdb->prepare(
            "SELECT o.*, p.post_title as product_name, dl.token as download_token 
             FROM {$wpdb->prefix}wpdd_orders o
             LEFT JOIN {$wpdb->posts} p ON o.product_id = p.ID
             LEFT JOIN {$wpdb->prefix}wpdd_download_links dl ON o.id = dl.order_id
             WHERE o.order_number = %s",
            $order_id
        ));
        
        if (!$order) {
            return '<p>' . __('Order not found.', 'wp-digital-download') . '</p>';
        }
        
        ob_start();
        ?>
        <div class="wpdd-thank-you">
            <h2><?php _e('Thank You for Your Purchase!', 'wp-digital-download'); ?></h2>
            
            <div class="wpdd-order-details">
                <p><?php _e('Your order has been received and processed successfully.', 'wp-digital-download'); ?></p>
                
                <div class="wpdd-order-info">
                    <p><strong><?php _e('Order Number:', 'wp-digital-download'); ?></strong> <?php echo esc_html($order->order_number); ?></p>
                    <p><strong><?php _e('Product:', 'wp-digital-download'); ?></strong> <?php echo esc_html($order->product_name); ?></p>
                    <p><strong><?php _e('Amount:', 'wp-digital-download'); ?></strong> $<?php echo number_format($order->amount, 2); ?></p>
                </div>
                
                <div class="wpdd-download-section">
                    <h3><?php _e('Download Your Product', 'wp-digital-download'); ?></h3>
                    <p><?php _e('A download link has been sent to your email address. You can also download your product using the button below:', 'wp-digital-download'); ?></p>
                    
                    <?php
                    // Use token-based download URL which works for unregistered users
                    if ($order->download_token) {
                        $download_url = add_query_arg(array(
                            'wpdd_download_token' => $order->download_token
                        ), home_url());
                    } else {
                        // For legacy orders without tokens, create one now
                        if (class_exists('WPDD_Download_Handler')) {
                            $token = WPDD_Download_Handler::ensure_download_token($order->id);
                            if ($token) {
                                $download_url = add_query_arg(array(
                                    'wpdd_download_token' => $token
                                ), home_url());
                            } else {
                                // Still fallback to old method if token creation fails
                                $download_args = array('wpdd_download' => $order->id);
                                
                                // For guest users, include email and authentication key
                                if (!is_user_logged_in()) {
                                    $download_args['customer_email'] = $order->customer_email;
                                    $download_args['key'] = substr(md5($order->customer_email . AUTH_KEY), 0, 10);
                                }
                                
                                $download_url = wp_nonce_url(
                                    add_query_arg($download_args),
                                    'wpdd_download_' . $order->id
                                );
                            }
                        } else {
                            // Fallback if WPDD_Download_Handler class not found
                            $download_args = array('wpdd_download' => $order->id);
                            
                            // For guest users, include email and authentication key
                            if (!is_user_logged_in()) {
                                $download_args['customer_email'] = $order->customer_email;
                                $download_args['key'] = substr(md5($order->customer_email . AUTH_KEY), 0, 10);
                            }
                            
                            $download_url = wp_nonce_url(
                                add_query_arg($download_args),
                                'wpdd_download_' . $order->id
                            );
                        }
                    }
                    ?>
                    
                    <a href="<?php echo esc_url($download_url); ?>" class="wpdd-btn wpdd-btn-primary wpdd-btn-large">
                        <?php _e('Download Now', 'wp-digital-download'); ?>
                    </a>
                </div>
                
                <?php if (is_user_logged_in()) : ?>
                    <p>
                        <?php printf(
                            __('You can view all your purchases and re-download files from your <a href="%s">purchase history</a>.', 'wp-digital-download'),
                            get_permalink(get_option('wpdd_purchases_page_id'))
                        ); ?>
                    </p>
                <?php endif; ?>
            </div>
        </div>
        <?php
        return ob_get_clean();
    }
    
    public static function single_product_shortcode($atts) {
        $atts = shortcode_atts(array(
            'id' => 0
        ), $atts);
        
        if (!$atts['id']) {
            return '';
        }
        
        ob_start();
        self::render_product_card($atts['id']);
        return ob_get_clean();
    }
    
    public static function buy_button_shortcode($atts) {
        $atts = shortcode_atts(array(
            'id' => get_the_ID(),
            'text' => __('Buy Now', 'wp-digital-download'),
            'class' => 'wpdd-buy-button'
        ), $atts);
        
        if (!$atts['id']) {
            return '';
        }
        
        return self::render_buy_button($atts['id'], $atts['text'], $atts['class']);
    }
    
    public static function render_buy_button($product_id, $text = '', $class = '') {
        global $wpdb;
        
        // Check if user already owns this product
        $user_owns_product = false;
        $existing_order = null;
        
        if (is_user_logged_in()) {
            $current_user = wp_get_current_user();
            $existing_order = $wpdb->get_row($wpdb->prepare(
                "SELECT * FROM {$wpdb->prefix}wpdd_orders 
                 WHERE product_id = %d 
                 AND (customer_id = %d OR customer_email = %s)
                 AND status = 'completed'
                 ORDER BY purchase_date DESC
                 LIMIT 1",
                $product_id,
                $current_user->ID,
                $current_user->user_email
            ));
            
            if ($existing_order) {
                $user_owns_product = true;
            }
        }
        
        // If user already owns the product, show download button
        if ($user_owns_product) {
            $download_url = wp_nonce_url(
                add_query_arg(array('wpdd_download' => $existing_order->id)),
                'wpdd_download_' . $existing_order->id
            );
            
            return sprintf(
                '<a href="%s" class="%s wpdd-owned-product">%s</a>',
                esc_url($download_url),
                esc_attr($class ?: 'wpdd-download-button'),
                esc_html(__('Download (Already Purchased)', 'wp-digital-download'))
            );
        }
        
        // Regular buy button for products not owned
        $price = get_post_meta($product_id, '_wpdd_price', true);
        $sale_price = get_post_meta($product_id, '_wpdd_sale_price', true);
        $is_free = get_post_meta($product_id, '_wpdd_is_free', true);
        
        $actual_price = ($sale_price && $sale_price < $price) ? $sale_price : $price;
        
        if (!$text) {
            if ($is_free) {
                $text = __('Download Free', 'wp-digital-download');
            } else {
                $text = sprintf(__('Buy Now - $%s', 'wp-digital-download'), number_format($actual_price, 2));
            }
        }
        
        $checkout_url = add_query_arg(array(
            'wpdd_action' => 'add_to_cart',
            'product_id' => $product_id,
            'nonce' => wp_create_nonce('wpdd_add_to_cart')
        ), get_permalink(get_option('wpdd_checkout_page_id')));
        
        $button_html = sprintf(
            '<a href="%s" class="%s" data-product-id="%d" data-price="%s">%s</a>',
            esc_url($checkout_url),
            esc_attr($class ?: 'wpdd-buy-button'),
            esc_attr($product_id),
            esc_attr($actual_price),
            esc_html($text)
        );
        
        return $button_html;
    }
    
    public static function add_buy_button_to_product($content) {
        if (!is_singular('wpdd_product')) {
            return $content;
        }
        
        global $post;
        
        // Get product details
        $price = get_post_meta($post->ID, '_wpdd_price', true);
        $sale_price = get_post_meta($post->ID, '_wpdd_sale_price', true);
        $is_free = get_post_meta($post->ID, '_wpdd_is_free', true);
        $files = get_post_meta($post->ID, '_wpdd_files', true);
        
        // Build product info box
        $product_info = '<div class="wpdd-single-product-info">';
        
        // Left section with meta
        $product_info .= '<div class="wpdd-single-meta">';
        
        // File count
        if (is_array($files)) {
            $file_count = count($files);
            $product_info .= '<p><strong>' . __('Files:', 'wp-digital-download') . '</strong> ' . 
                            sprintf(_n('%d file', '%d files', $file_count, 'wp-digital-download'), $file_count) . '</p>';
        }
        
        // Creator info with shop filter link
        $creator = get_userdata($post->post_author);
        $shop_page_id = get_option('wpdd_shop_page_id');
        $shop_url = $shop_page_id ? get_permalink($shop_page_id) : home_url('/shop/');
        $creator_filter_url = add_query_arg('wpdd_creator', $creator->ID, $shop_url);
        
        $product_info .= '<p><strong>' . __('Created by', 'wp-digital-download') . '</strong> ' . 
                        '<a href="' . esc_url($creator_filter_url) . '">' . esc_html($creator->display_name) . '</a></p>';
        
        // Categories
        $categories = wp_get_post_terms($post->ID, 'wpdd_product_category', array('fields' => 'names'));
        if (!empty($categories)) {
            $product_info .= '<p><strong>' . __('Categories:', 'wp-digital-download') . '</strong> ' . 
                            implode(', ', $categories) . '</p>';
        }
        
        $product_info .= '</div>'; // close meta
        
        // Right section with buy button
        $product_info .= '<div class="wpdd-single-purchase">';
        
        // Buy button (price is included in button text)
        $product_info .= '<div class="wpdd-single-buy-button">';
        $product_info .= self::render_buy_button($post->ID);
        $product_info .= '</div>';
        
        $product_info .= '</div>'; // close purchase section
        $product_info .= '</div>'; // close product info box
        
        // Add CSS for the product info box
        $product_info .= '<style>
            .wpdd-single-product-info {
                display: flex;
                flex-direction: row;
                align-items: center;
                justify-content: center;
                width: 100%;
                max-width: 800px;
                background: #f9f9f9;
                border: 1px solid #ddd;
                border-radius: 8px;
                padding: 20px;
                margin: 20px auto;
                box-sizing: border-box;
                gap: 20px;
            }
            .wpdd-single-meta {
                flex: 1;
                padding-right: 20px;
            }
            .wpdd-single-meta p {
                margin: 10px 0;
                font-size: 14px;
            }
            .wpdd-single-meta a {
                color: #0073aa;
                text-decoration: none;
            }
            .wpdd-single-meta a:hover {
                text-decoration: underline;
            }
            .wpdd-single-purchase {
                flex-shrink: 0;
                display: flex;
                flex-direction: column;
                align-items: center;
                justify-content: center;
                min-width: 200px;
            }
            .wpdd-buy-button {
                display: block;
                background: #0073aa;
                color: white !important;
                text-align: center;
                padding: 15px 30px;
                text-decoration: none;
                border-radius: 5px;
                font-size: 18px;
                font-weight: bold;
                transition: background 0.3s;
                white-space: nowrap;
                min-width: 180px;
            }
            .wpdd-buy-button:hover {
                background: #005a87;
                color: white !important;
            }
            .wpdd-owned-product {
                background: #27ae60 !important;
                padding: 15px 40px !important;
                min-width: 250px;
            }
            .wpdd-owned-product:hover {
                background: #229954 !important;
            }
            @media (max-width: 768px) {
                .wpdd-single-product-info {
                    flex-direction: column;
                    width: 100%;
                    max-width: 100%;
                    margin: 20px 0;
                }
                .wpdd-single-meta {
                    padding-right: 0;
                    text-align: center;
                }
                .wpdd-single-purchase {
                    min-width: auto;
                    width: 100%;
                }
                .wpdd-buy-button {
                    width: 100%;
                    min-width: auto;
                }
            }
        </style>';
        
        // Add the product info box before the content
        return $product_info . $content;
    }
    
    public static function creator_dashboard_shortcode($atts) {
        if (!is_user_logged_in()) {
            return '<p>' . __('Please log in to view your creator dashboard.', 'wp-digital-download') . '</p>';
        }
        
        $user_id = get_current_user_id();
        
        // Check if user is a creator
        if (!WPDD_Creator::is_creator($user_id)) {
            return '<p>' . __('This dashboard is only available for creators.', 'wp-digital-download') . '</p>';
        }
        
        global $wpdb;
        
        // Get creator stats
        $total_earnings = WPDD_Creator::get_creator_total_earnings($user_id);
        $net_earnings = WPDD_Creator::get_creator_net_earnings($user_id);
        $current_balance = WPDD_Creator::get_creator_balance($user_id);
        $commission_rate = floatval(get_option('wpdd_commission_rate', 0));
        $currency = get_option('wpdd_currency', 'USD');
        $paypal_email = get_user_meta($user_id, 'wpdd_paypal_email', true);
        
        // Get recent sales
        $recent_sales = $wpdb->get_results($wpdb->prepare(
            "SELECT o.*, p.post_title as product_name,
                    (o.total * %f / 100) as platform_fee,
                    (o.total * (100 - %f) / 100) as creator_earning
             FROM {$wpdb->prefix}wpdd_orders o
             INNER JOIN {$wpdb->posts} p ON o.product_id = p.ID
             WHERE p.post_author = %d
             AND o.status = 'completed'
             ORDER BY o.purchase_date DESC
             LIMIT 20",
            $commission_rate,
            $commission_rate,
            $user_id
        ));
        
        // Get payout history
        $payouts = $wpdb->get_results($wpdb->prepare(
            "SELECT * FROM {$wpdb->prefix}wpdd_payouts
             WHERE creator_id = %d
             ORDER BY created_at DESC
             LIMIT 10",
            $user_id
        ));
        
        ob_start();
        ?>
        <div class="wpdd-creator-dashboard">
            <h2><?php _e('Creator Dashboard', 'wp-digital-download'); ?></h2>
            
            <div class="wpdd-creator-stats">
                <div class="wpdd-stat-box">
                    <h3><?php _e('Current Balance', 'wp-digital-download'); ?></h3>
                    <div class="wpdd-stat-value"><?php echo wpdd_format_price($current_balance, $currency); ?></div>
                    <p class="wpdd-stat-desc"><?php _e('Available for payout', 'wp-digital-download'); ?></p>
                </div>
                
                <div class="wpdd-stat-box">
                    <h3><?php _e('Total Sales', 'wp-digital-download'); ?></h3>
                    <div class="wpdd-stat-value"><?php echo wpdd_format_price($total_earnings, $currency); ?></div>
                    <p class="wpdd-stat-desc"><?php _e('Lifetime gross sales', 'wp-digital-download'); ?></p>
                </div>
                
                <div class="wpdd-stat-box">
                    <h3><?php _e('Net Earnings', 'wp-digital-download'); ?></h3>
                    <div class="wpdd-stat-value"><?php echo wpdd_format_price($net_earnings, $currency); ?></div>
                    <p class="wpdd-stat-desc"><?php printf(__('After %s%% platform fee', 'wp-digital-download'), $commission_rate); ?></p>
                </div>
            </div>
            
            <div class="wpdd-creator-settings">
                <h3><?php _e('Payout Settings', 'wp-digital-download'); ?></h3>
                <?php if (empty($paypal_email)) : ?>
                    <div class="wpdd-notice wpdd-warning">
                        <?php _e('Please add your PayPal email in your profile to receive payouts.', 'wp-digital-download'); ?>
                        <a href="<?php echo esc_url(get_edit_profile_url($user_id)); ?>"><?php _e('Edit Profile', 'wp-digital-download'); ?></a>
                    </div>
                <?php else : ?>
                    <p><?php _e('PayPal Email:', 'wp-digital-download'); ?> <strong><?php echo esc_html($paypal_email); ?></strong> 
                    <a href="<?php echo esc_url(get_edit_profile_url($user_id)); ?>"><?php _e('Change', 'wp-digital-download'); ?></a></p>
                <?php endif; ?>
                
                <?php
                $threshold = floatval(get_option('wpdd_payout_threshold', 0));
                if ($threshold > 0) {
                    echo '<p>' . sprintf(__('Automatic payouts are triggered when balance reaches %s', 'wp-digital-download'), wpdd_format_price($threshold, $currency)) . '</p>';
                }
                ?>
            </div>
            
            <?php if (!empty($recent_sales)) : ?>
            <div class="wpdd-recent-sales">
                <h3><?php _e('Recent Sales', 'wp-digital-download'); ?></h3>
                <table class="wpdd-table">
                    <thead>
                        <tr>
                            <th><?php _e('Date', 'wp-digital-download'); ?></th>
                            <th><?php _e('Product', 'wp-digital-download'); ?></th>
                            <th><?php _e('Customer', 'wp-digital-download'); ?></th>
                            <th><?php _e('Sale Amount', 'wp-digital-download'); ?></th>
                            <th><?php _e('Platform Fee', 'wp-digital-download'); ?></th>
                            <th><?php _e('Your Earning', 'wp-digital-download'); ?></th>
                        </tr>
                    </thead>
                    <tbody>
                        <?php foreach ($recent_sales as $sale) : ?>
                        <tr>
                            <td><?php echo esc_html(date_i18n(get_option('date_format'), strtotime($sale->purchase_date))); ?></td>
                            <td><?php echo esc_html($sale->product_name); ?></td>
                            <td><?php echo esc_html($sale->customer_name); ?></td>
                            <td><?php echo wpdd_format_price($sale->total, $currency); ?></td>
                            <td><?php echo wpdd_format_price($sale->platform_fee, $currency); ?></td>
                            <td><strong><?php echo wpdd_format_price($sale->creator_earning, $currency); ?></strong></td>
                        </tr>
                        <?php endforeach; ?>
                    </tbody>
                </table>
            </div>
            <?php endif; ?>
            
            <?php if (!empty($payouts)) : ?>
            <div class="wpdd-payout-history">
                <h3><?php _e('Payout History', 'wp-digital-download'); ?></h3>
                <table class="wpdd-table">
                    <thead>
                        <tr>
                            <th><?php _e('Date', 'wp-digital-download'); ?></th>
                            <th><?php _e('Amount', 'wp-digital-download'); ?></th>
                            <th><?php _e('Status', 'wp-digital-download'); ?></th>
                            <th><?php _e('Transaction ID', 'wp-digital-download'); ?></th>
                            <th><?php _e('Method', 'wp-digital-download'); ?></th>
                        </tr>
                    </thead>
                    <tbody>
                        <?php foreach ($payouts as $payout) : ?>
                        <tr>
                            <td><?php echo esc_html(date_i18n(get_option('date_format'), strtotime($payout->created_at))); ?></td>
                            <td><?php echo wpdd_format_price($payout->amount, $payout->currency); ?></td>
                            <td>
                                <span class="wpdd-status wpdd-status-<?php echo esc_attr($payout->status); ?>">
                                    <?php echo esc_html(ucfirst($payout->status)); ?>
                                </span>
                            </td>
                            <td><?php echo esc_html($payout->transaction_id ?: '-'); ?></td>
                            <td><?php echo esc_html(ucfirst($payout->payout_method)); ?></td>
                        </tr>
                        <?php endforeach; ?>
                    </tbody>
                </table>
            </div>
            <?php endif; ?>
            
            <style>
                .wpdd-creator-dashboard {
                    max-width: 1200px;
                    margin: 20px 0;
                }
                .wpdd-creator-stats {
                    display: grid;
                    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
                    gap: 20px;
                    margin-bottom: 30px;
                }
                .wpdd-stat-box {
                    background: #f8f9fa;
                    border: 1px solid #dee2e6;
                    border-radius: 8px;
                    padding: 20px;
                    text-align: center;
                }
                .wpdd-stat-box h3 {
                    margin: 0 0 10px;
                    font-size: 14px;
                    text-transform: uppercase;
                    color: #6c757d;
                }
                .wpdd-stat-value {
                    font-size: 32px;
                    font-weight: bold;
                    color: #212529;
                    margin: 10px 0;
                }
                .wpdd-stat-desc {
                    color: #6c757d;
                    font-size: 12px;
                    margin: 5px 0 0;
                }
                .wpdd-creator-settings {
                    background: #fff;
                    border: 1px solid #dee2e6;
                    border-radius: 8px;
                    padding: 20px;
                    margin-bottom: 30px;
                }
                .wpdd-notice {
                    padding: 12px;
                    border-radius: 4px;
                    margin: 10px 0;
                }
                .wpdd-warning {
                    background-color: #fff3cd;
                    border: 1px solid #ffc107;
                    color: #856404;
                }
                .wpdd-table {
                    width: 100%;
                    border-collapse: collapse;
                    margin-top: 15px;
                }
                .wpdd-table th,
                .wpdd-table td {
                    padding: 12px;
                    text-align: left;
                    border-bottom: 1px solid #dee2e6;
                }
                .wpdd-table th {
                    background-color: #f8f9fa;
                    font-weight: 600;
                }
                .wpdd-status {
                    display: inline-block;
                    padding: 4px 8px;
                    border-radius: 4px;
                    font-size: 12px;
                    font-weight: 600;
                }
                .wpdd-status-completed {
                    background-color: #d4edda;
                    color: #155724;
                }
                .wpdd-status-pending {
                    background-color: #fff3cd;
                    color: #856404;
                }
                .wpdd-status-failed {
                    background-color: #f8d7da;
                    color: #721c24;
                }
            </style>
        </div>
        <?php
        return ob_get_clean();
    }
}