<?php
/**
 * Redsys Preauthorization Extension
 * 
 * Adds preauthorization functionality to Redsys gateway
 * Allows holding funds without immediate capture
 * 
 * 🤖 Generated with Claude Code (https://claude.ai/code)
 */

// Exit if accessed directly
if (!defined('ABSPATH')) {
    exit;
}

class EB_Redsys_Preauthorization {
    
    /**
     * Constructor
     */
    public function __construct() {
        add_action('init', array($this, 'init'));
    }
    
    /**
     * Initialize the class
     */
    public function init() {
        // Add preauthorization option to payment settings
        add_filter('eb_redsys_payment_settings', array($this, 'add_preauth_settings'));
        
        // Modify payment processing for preauthorization
        add_filter('eb_redsys_payment_parameters', array($this, 'modify_payment_parameters'), 10, 2);
        
        // Add preauthorization management to admin
        add_action('admin_menu', array($this, 'add_admin_menu'));
        
        // Add preauthorization metabox to bookings
        add_action('add_meta_boxes', array($this, 'add_preauth_metabox'));
        
        // AJAX handlers for preauthorization actions
        add_action('wp_ajax_capture_preauth', array($this, 'capture_preauthorization'));
        add_action('wp_ajax_cancel_preauth', array($this, 'cancel_preauthorization'));
        
        // Handle preauthorization notifications
        add_action('eb_redsys_payment_notification', array($this, 'handle_preauth_notification'), 10, 2);
        
        // Create database table for preauthorizations
        register_activation_hook(EB_REDSYS_PLUGIN_FILE, array($this, 'create_preauth_table'));
        
        // Enqueue admin scripts
        add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_scripts'));
    }
    
    /**
     * Add preauthorization settings to payment gateway
     */
    public function add_preauth_settings($settings) {
        $preauth_settings = array(
            'preauth_enabled' => array(
                'title' => __('Enable Preauthorization', 'informatiq-eb-redsys'),
                'type' => 'checkbox',
                'description' => __('Enable preauthorization mode for reservations (hold funds without immediate capture)', 'informatiq-eb-redsys'),
                'default' => 'no'
            ),
            'preauth_amount_type' => array(
                'title' => __('Preauthorization Amount', 'informatiq-eb-redsys'),
                'type' => 'select',
                'description' => __('Choose how much to preauthorize', 'informatiq-eb-redsys'),
                'default' => 'full',
                'options' => array(
                    'full' => __('Full booking amount', 'informatiq-eb-redsys'),
                    'deposit' => __('Deposit amount only', 'informatiq-eb-redsys'),
                    'fixed' => __('Fixed amount', 'informatiq-eb-redsys')
                )
            ),
            'preauth_fixed_amount' => array(
                'title' => __('Fixed Preauthorization Amount (€)', 'informatiq-eb-redsys'),
                'type' => 'number',
                'description' => __('Fixed amount to preauthorize (only used if "Fixed amount" is selected above)', 'informatiq-eb-redsys'),
                'default' => '50',
                'custom_attributes' => array(
                    'step' => '0.01',
                    'min' => '0.01'
                )
            ),
            'preauth_auto_capture' => array(
                'title' => __('Auto-capture Preauthorizations', 'informatiq-eb-redsys'),
                'type' => 'checkbox',
                'description' => __('Automatically capture preauthorizations 24 hours before check-in', 'informatiq-eb-redsys'),
                'default' => 'yes'
            ),
            'preauth_expiry_days' => array(
                'title' => __('Preauthorization Expiry (Days)', 'informatiq-eb-redsys'),
                'type' => 'number',
                'description' => __('Number of days before preauthorization expires (max 7 days for most cards)', 'informatiq-eb-redsys'),
                'default' => '7',
                'custom_attributes' => array(
                    'min' => '1',
                    'max' => '7'
                )
            )
        );
        
        return array_merge($settings, $preauth_settings);
    }
    
    /**
     * Modify payment parameters for preauthorization
     */
    public function modify_payment_parameters($parameters, $booking_data) {
        if (get_option('eb_redsys_preauth_enabled') !== 'yes') {
            return $parameters;
        }
        
        // Change transaction type to preauthorization
        $parameters['DS_MERCHANT_TRANSACTIONTYPE'] = '1'; // Preauthorization
        
        // Calculate preauthorization amount
        $preauth_amount = $this->calculate_preauth_amount($booking_data);
        $parameters['DS_MERCHANT_AMOUNT'] = $preauth_amount * 100; // Convert to cents
        
        // Add preauthorization identifier
        $parameters['DS_MERCHANT_PRODUCTDESCRIPTION'] = 'Preauth: ' . $parameters['DS_MERCHANT_PRODUCTDESCRIPTION'];
        
        return $parameters;
    }
    
    /**
     * Calculate preauthorization amount
     */
    private function calculate_preauth_amount($booking_data) {
        $amount_type = get_option('eb_redsys_preauth_amount_type', 'full');
        $total_amount = $booking_data['total_price'];
        
        switch ($amount_type) {
            case 'full':
                return $total_amount;
                
            case 'deposit':
                $deposit_percentage = get_option('eb_deposit_percentage', 30);
                return ($total_amount * $deposit_percentage) / 100;
                
            case 'fixed':
                return floatval(get_option('eb_redsys_preauth_fixed_amount', 50));
                
            default:
                return $total_amount;
        }
    }
    
    /**
     * Add admin menu
     */
    public function add_admin_menu() {
        add_submenu_page(
            'eb_bookings',
            __('Preauthorizations', 'informatiq-eb-redsys'),
            __('Preauthorizations', 'informatiq-eb-redsys'),
            'manage_options',
            'eb-preauthorizations',
            array($this, 'admin_page')
        );
    }
    
    /**
     * Render admin page
     */
    public function admin_page() {
        ?>
        <div class="wrap">
            <h1><?php _e('Preauthorizations Management', 'informatiq-eb-redsys'); ?></h1>
            
            <div class="eb-preauth-admin">
                <!-- Preauthorization Statistics -->
                <div class="postbox">
                    <h2 class="hndle"><?php _e('Preauthorization Statistics', 'informatiq-eb-redsys'); ?></h2>
                    <div class="inside">
                        <?php $this->display_preauth_statistics(); ?>
                    </div>
                </div>
                
                <!-- Active Preauthorizations -->
                <div class="postbox">
                    <h2 class="hndle"><?php _e('Active Preauthorizations', 'informatiq-eb-redsys'); ?></h2>
                    <div class="inside">
                        <?php $this->display_active_preauthorizations(); ?>
                    </div>
                </div>
                
                <!-- Preauthorization History -->
                <div class="postbox">
                    <h2 class="hndle"><?php _e('Preauthorization History', 'informatiq-eb-redsys'); ?></h2>
                    <div class="inside">
                        <?php $this->display_preauth_history(); ?>
                    </div>
                </div>
            </div>
        </div>
        
        <style>
        .eb-preauth-admin .postbox {
            margin-bottom: 20px;
        }
        
        .preauth-stats {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
            gap: 20px;
            margin: 20px 0;
        }
        
        .preauth-stat-box {
            background: #f8f9fa;
            padding: 20px;
            text-align: center;
            border-radius: 5px;
            border: 1px solid #e1e5e9;
        }
        
        .preauth-stat-box h3 {
            margin: 0 0 10px;
            font-size: 2em;
            color: #2271b1;
        }
        
        .preauth-status {
            padding: 3px 8px;
            border-radius: 3px;
            font-size: 11px;
            font-weight: bold;
            text-transform: uppercase;
        }
        
        .status-active {
            background: #d4edda;
            color: #155724;
        }
        
        .status-captured {
            background: #d1ecf1;
            color: #0c5460;
        }
        
        .status-cancelled {
            background: #f8d7da;
            color: #721c24;
        }
        
        .status-expired {
            background: #e2e3e5;
            color: #383d41;
        }
        
        .preauth-actions {
            display: flex;
            gap: 5px;
            flex-wrap: wrap;
        }
        
        .preauth-actions .button {
            font-size: 11px;
            padding: 2px 8px;
            height: auto;
        }
        </style>
        <?php
    }
    
    /**
     * Display preauthorization statistics
     */
    private function display_preauth_statistics() {
        global $wpdb;
        
        $table_name = $wpdb->prefix . 'eb_preauthorizations';
        
        $stats = $wpdb->get_row("
            SELECT 
                COUNT(*) as total_preauths,
                SUM(CASE WHEN status = 'active' THEN 1 ELSE 0 END) as active_preauths,
                SUM(CASE WHEN status = 'captured' THEN 1 ELSE 0 END) as captured_preauths,
                SUM(CASE WHEN status = 'cancelled' THEN 1 ELSE 0 END) as cancelled_preauths,
                SUM(CASE WHEN status = 'active' THEN amount ELSE 0 END) as active_amount,
                SUM(CASE WHEN status = 'captured' THEN amount ELSE 0 END) as captured_amount
            FROM {$table_name}
            WHERE created_at >= DATE_SUB(NOW(), INTERVAL 30 DAY)
        ");
        
        ?>
        <div class="preauth-stats">
            <div class="preauth-stat-box">
                <h3><?php echo $stats->total_preauths ?: 0; ?></h3>
                <p><?php _e('Total Preauthorizations (30 days)', 'informatiq-eb-redsys'); ?></p>
            </div>
            <div class="preauth-stat-box">
                <h3><?php echo $stats->active_preauths ?: 0; ?></h3>
                <p><?php _e('Active Preauthorizations', 'informatiq-eb-redsys'); ?></p>
            </div>
            <div class="preauth-stat-box">
                <h3>€<?php echo number_format($stats->active_amount ?: 0, 2); ?></h3>
                <p><?php _e('Active Amount', 'informatiq-eb-redsys'); ?></p>
            </div>
            <div class="preauth-stat-box">
                <h3>€<?php echo number_format($stats->captured_amount ?: 0, 2); ?></h3>
                <p><?php _e('Captured Amount (30 days)', 'informatiq-eb-redsys'); ?></p>
            </div>
        </div>
        <?php
    }
    
    /**
     * Display active preauthorizations
     */
    private function display_active_preauthorizations() {
        global $wpdb;
        
        $table_name = $wpdb->prefix . 'eb_preauthorizations';
        $preauths = $wpdb->get_results("
            SELECT * FROM {$table_name} 
            WHERE status = 'active' 
            ORDER BY created_at DESC
        ");
        
        if (empty($preauths)) {
            echo '<p>' . __('No active preauthorizations found.', 'informatiq-eb-redsys') . '</p>';
            return;
        }
        
        ?>
        <table class="wp-list-table widefat fixed striped">
            <thead>
                <tr>
                    <th><?php _e('Booking ID', 'informatiq-eb-redsys'); ?></th>
                    <th><?php _e('Customer', 'informatiq-eb-redsys'); ?></th>
                    <th><?php _e('Amount', 'informatiq-eb-redsys'); ?></th>
                    <th><?php _e('Auth Code', 'informatiq-eb-redsys'); ?></th>
                    <th><?php _e('Expires', 'informatiq-eb-redsys'); ?></th>
                    <th><?php _e('Actions', 'informatiq-eb-redsys'); ?></th>
                </tr>
            </thead>
            <tbody>
                <?php foreach ($preauths as $preauth): ?>
                <tr>
                    <td>
                        <a href="<?php echo admin_url('post.php?post=' . $preauth->booking_id . '&action=edit'); ?>">
                            #<?php echo $preauth->booking_id; ?>
                        </a>
                    </td>
                    <td><?php echo esc_html($preauth->customer_email); ?></td>
                    <td>€<?php echo number_format($preauth->amount, 2); ?></td>
                    <td><code><?php echo esc_html($preauth->auth_code); ?></code></td>
                    <td>
                        <?php 
                        $expires = strtotime($preauth->expires_at);
                        $now = time();
                        $days_left = ceil(($expires - $now) / (24 * 60 * 60));
                        
                        if ($days_left <= 0) {
                            echo '<span style="color: #d63638;">' . __('Expired', 'informatiq-eb-redsys') . '</span>';
                        } else {
                            echo date_i18n(get_option('date_format'), $expires);
                            echo '<br><small>' . sprintf(_n('%d day left', '%d days left', $days_left, 'informatiq-eb-redsys'), $days_left) . '</small>';
                        }
                        ?>
                    </td>
                    <td>
                        <div class="preauth-actions">
                            <button class="button button-primary button-small capture-preauth" 
                                    data-preauth-id="<?php echo $preauth->id; ?>"
                                    data-booking-id="<?php echo $preauth->booking_id; ?>"
                                    data-amount="<?php echo $preauth->amount; ?>">
                                <?php _e('Capture', 'informatiq-eb-redsys'); ?>
                            </button>
                            <button class="button button-secondary button-small cancel-preauth" 
                                    data-preauth-id="<?php echo $preauth->id; ?>"
                                    data-booking-id="<?php echo $preauth->booking_id; ?>">
                                <?php _e('Cancel', 'informatiq-eb-redsys'); ?>
                            </button>
                        </div>
                    </td>
                </tr>
                <?php endforeach; ?>
            </tbody>
        </table>
        <?php
    }
    
    /**
     * Display preauthorization history
     */
    private function display_preauth_history() {
        global $wpdb;
        
        $table_name = $wpdb->prefix . 'eb_preauthorizations';
        $preauths = $wpdb->get_results("
            SELECT * FROM {$table_name} 
            WHERE status != 'active' 
            ORDER BY created_at DESC 
            LIMIT 20
        ");
        
        if (empty($preauths)) {
            echo '<p>' . __('No preauthorization history found.', 'informatiq-eb-redsys') . '</p>';
            return;
        }
        
        ?>
        <table class="wp-list-table widefat fixed striped">
            <thead>
                <tr>
                    <th><?php _e('Booking ID', 'informatiq-eb-redsys'); ?></th>
                    <th><?php _e('Customer', 'informatiq-eb-redsys'); ?></th>
                    <th><?php _e('Amount', 'informatiq-eb-redsys'); ?></th>
                    <th><?php _e('Status', 'informatiq-eb-redsys'); ?></th>
                    <th><?php _e('Created', 'informatiq-eb-redsys'); ?></th>
                    <th><?php _e('Updated', 'informatiq-eb-redsys'); ?></th>
                </tr>
            </thead>
            <tbody>
                <?php foreach ($preauths as $preauth): ?>
                <tr>
                    <td>
                        <a href="<?php echo admin_url('post.php?post=' . $preauth->booking_id . '&action=edit'); ?>">
                            #<?php echo $preauth->booking_id; ?>
                        </a>
                    </td>
                    <td><?php echo esc_html($preauth->customer_email); ?></td>
                    <td>€<?php echo number_format($preauth->amount, 2); ?></td>
                    <td>
                        <span class="preauth-status status-<?php echo esc_attr($preauth->status); ?>">
                            <?php echo ucfirst($preauth->status); ?>
                        </span>
                    </td>
                    <td><?php echo date_i18n(get_option('datetime_format'), strtotime($preauth->created_at)); ?></td>
                    <td><?php echo $preauth->updated_at ? date_i18n(get_option('datetime_format'), strtotime($preauth->updated_at)) : '-'; ?></td>
                </tr>
                <?php endforeach; ?>
            </tbody>
        </table>
        <?php
    }
    
    /**
     * Capture preauthorization (AJAX handler)
     */
    public function capture_preauthorization() {
        check_ajax_referer('preauth_nonce', 'nonce');
        
        if (!current_user_can('manage_options')) {
            wp_die(__('Insufficient permissions', 'informatiq-eb-redsys'));
        }
        
        $preauth_id = intval($_POST['preauth_id']);
        $booking_id = intval($_POST['booking_id']);
        
        global $wpdb;
        $table_name = $wpdb->prefix . 'eb_preauthorizations';
        
        $preauth = $wpdb->get_row($wpdb->prepare(
            "SELECT * FROM {$table_name} WHERE id = %d AND status = 'active'",
            $preauth_id
        ));
        
        if (!$preauth) {
            wp_send_json_error(__('Preauthorization not found or not active', 'informatiq-eb-redsys'));
        }
        
        // Process capture with Redsys
        $result = $this->process_capture($preauth);
        
        if ($result['success']) {
            wp_send_json_success(__('Preauthorization captured successfully', 'informatiq-eb-redsys'));
        } else {
            wp_send_json_error($result['error']);
        }
    }
    
    /**
     * Cancel preauthorization (AJAX handler)
     */
    public function cancel_preauthorization() {
        check_ajax_referer('preauth_nonce', 'nonce');
        
        if (!current_user_can('manage_options')) {
            wp_die(__('Insufficient permissions', 'informatiq-eb-redsys'));
        }
        
        $preauth_id = intval($_POST['preauth_id']);
        $booking_id = intval($_POST['booking_id']);
        
        global $wpdb;
        $table_name = $wpdb->prefix . 'eb_preauthorizations';
        
        $preauth = $wpdb->get_row($wpdb->prepare(
            "SELECT * FROM {$table_name} WHERE id = %d AND status = 'active'",
            $preauth_id
        ));
        
        if (!$preauth) {
            wp_send_json_error(__('Preauthorization not found or not active', 'informatiq-eb-redsys'));
        }
        
        // Process cancellation with Redsys
        $result = $this->process_cancellation($preauth);
        
        if ($result['success']) {
            wp_send_json_success(__('Preauthorization cancelled successfully', 'informatiq-eb-redsys'));
        } else {
            wp_send_json_error($result['error']);
        }
    }
    
    /**
     * Process capture with Redsys
     */
    private function process_capture($preauth) {
        // Include Redsys API
        require_once dirname(__FILE__) . '/../api/class-redsys-api.php';
        
        $redsys = new Redsys_API();
        
        // Set capture parameters
        $redsys->setParameter('DS_MERCHANT_AMOUNT', $preauth->amount * 100);
        $redsys->setParameter('DS_MERCHANT_ORDER', $preauth->order_number);
        $redsys->setParameter('DS_MERCHANT_MERCHANTCODE', get_option('eb_redsys_merchant_code'));
        $redsys->setParameter('DS_MERCHANT_CURRENCY', '978');
        $redsys->setParameter('DS_MERCHANT_TRANSACTIONTYPE', '2'); // Capture
        $redsys->setParameter('DS_MERCHANT_TERMINAL', get_option('eb_redsys_terminal'));
        $redsys->setParameter('DS_MERCHANT_AUTHCODE', $preauth->auth_code);
        
        // Generate signature
        $signature = $redsys->createMerchantSignature(get_option('eb_redsys_encryption_key'));
        
        // Send request to Redsys
        $result = $this->send_redsys_request($redsys, $signature);
        
        if ($result['success']) {
            // Update preauthorization status
            global $wpdb;
            $wpdb->update(
                $wpdb->prefix . 'eb_preauthorizations',
                array(
                    'status' => 'captured',
                    'captured_at' => current_time('mysql'),
                    'updated_at' => current_time('mysql')
                ),
                array('id' => $preauth->id),
                array('%s', '%s', '%s'),
                array('%d')
            );
            
            // Update booking payment status
            update_post_meta($preauth->booking_id, '_eb_payment_status', 'completed');
            
            return array('success' => true);
        } else {
            return array('success' => false, 'error' => $result['error']);
        }
    }
    
    /**
     * Process cancellation with Redsys
     */
    private function process_cancellation($preauth) {
        // Include Redsys API
        require_once dirname(__FILE__) . '/../api/class-redsys-api.php';
        
        $redsys = new Redsys_API();
        
        // Set cancellation parameters
        $redsys->setParameter('DS_MERCHANT_AMOUNT', $preauth->amount * 100);
        $redsys->setParameter('DS_MERCHANT_ORDER', $preauth->order_number);
        $redsys->setParameter('DS_MERCHANT_MERCHANTCODE', get_option('eb_redsys_merchant_code'));
        $redsys->setParameter('DS_MERCHANT_CURRENCY', '978');
        $redsys->setParameter('DS_MERCHANT_TRANSACTIONTYPE', '9'); // Cancellation
        $redsys->setParameter('DS_MERCHANT_TERMINAL', get_option('eb_redsys_terminal'));
        $redsys->setParameter('DS_MERCHANT_AUTHCODE', $preauth->auth_code);
        
        // Generate signature
        $signature = $redsys->createMerchantSignature(get_option('eb_redsys_encryption_key'));
        
        // Send request to Redsys
        $result = $this->send_redsys_request($redsys, $signature);
        
        if ($result['success']) {
            // Update preauthorization status
            global $wpdb;
            $wpdb->update(
                $wpdb->prefix . 'eb_preauthorizations',
                array(
                    'status' => 'cancelled',
                    'cancelled_at' => current_time('mysql'),
                    'updated_at' => current_time('mysql')
                ),
                array('id' => $preauth->id),
                array('%s', '%s', '%s'),
                array('%d')
            );
            
            // Update booking payment status
            update_post_meta($preauth->booking_id, '_eb_payment_status', 'cancelled');
            
            return array('success' => true);
        } else {
            return array('success' => false, 'error' => $result['error']);
        }
    }
    
    /**
     * Send request to Redsys
     */
    private function send_redsys_request($redsys, $signature) {
        $test_mode = get_option('eb_redsys_test_mode') === 'yes';
        $url = $test_mode ? 
            'https://sis-t.redsys.es:25443/sis/operaciones' : 
            'https://sis.redsys.es/sis/operaciones';
        
        $post_data = array(
            'Ds_SignatureVersion' => 'HMAC_SHA256_V1',
            'Ds_MerchantParameters' => $redsys->createMerchantParameters(),
            'Ds_Signature' => $signature
        );
        
        $response = wp_remote_post($url, array(
            'timeout' => 45,
            'body' => $post_data
        ));
        
        if (is_wp_error($response)) {
            return array('success' => false, 'error' => $response->get_error_message());
        }
        
        $body = wp_remote_retrieve_body($response);
        $xml = simplexml_load_string($body);
        
        if ($xml && isset($xml->OPERACION->Ds_Response)) {
            $response_code = (string) $xml->OPERACION->Ds_Response;
            
            if ($response_code >= 0 && $response_code <= 99) {
                return array('success' => true, 'response_code' => $response_code);
            } else {
                return array('success' => false, 'error' => 'Response code: ' . $response_code);
            }
        }
        
        return array('success' => false, 'error' => 'Invalid response from Redsys');
    }
    
    /**
     * Handle preauthorization notification
     */
    public function handle_preauth_notification($notification_data, $booking_id) {
        if ($notification_data['Ds_TransactionType'] !== '1') {
            return; // Not a preauthorization
        }
        
        $response_code = intval($notification_data['Ds_Response']);
        
        if ($response_code >= 0 && $response_code <= 99) {
            // Successful preauthorization
            $this->save_preauthorization_data($booking_id, $notification_data);
        } else {
            // Failed preauthorization
            update_post_meta($booking_id, '_eb_payment_status', 'failed');
        }
    }
    
    /**
     * Save preauthorization data
     */
    private function save_preauthorization_data($booking_id, $notification_data) {
        global $wpdb;
        
        $table_name = $wpdb->prefix . 'eb_preauthorizations';
        
        $expiry_days = intval(get_option('eb_redsys_preauth_expiry_days', 7));
        $expires_at = date('Y-m-d H:i:s', strtotime("+{$expiry_days} days"));
        
        $wpdb->insert(
            $table_name,
            array(
                'booking_id' => $booking_id,
                'customer_email' => get_post_meta($booking_id, '_eb_customer_email', true),
                'amount' => $notification_data['Ds_Amount'] / 100,
                'order_number' => $notification_data['Ds_Order'],
                'auth_code' => $notification_data['Ds_AuthorisationCode'],
                'status' => 'active',
                'created_at' => current_time('mysql'),
                'expires_at' => $expires_at
            ),
            array('%d', '%s', '%f', '%s', '%s', '%s', '%s', '%s')
        );
        
        // Update booking payment status
        update_post_meta($booking_id, '_eb_payment_status', 'preauthorized');
    }
    
    /**
     * Add preauthorization metabox to booking
     */
    public function add_preauth_metabox() {
        add_meta_box(
            'eb-preauthorization',
            __('Preauthorization', 'informatiq-eb-redsys'),
            array($this, 'preauth_metabox_callback'),
            'eagle_booking',
            'side',
            'default'
        );
    }
    
    /**
     * Preauthorization metabox callback
     */
    public function preauth_metabox_callback($post) {
        global $wpdb;
        
        $table_name = $wpdb->prefix . 'eb_preauthorizations';
        $preauth = $wpdb->get_row($wpdb->prepare(
            "SELECT * FROM {$table_name} WHERE booking_id = %d ORDER BY created_at DESC LIMIT 1",
            $post->ID
        ));
        
        if (!$preauth) {
            echo '<p>' . __('No preauthorization found for this booking.', 'informatiq-eb-redsys') . '</p>';
            return;
        }
        
        ?>
        <div class="eb-preauth-metabox">
            <p><strong><?php _e('Amount:', 'informatiq-eb-redsys'); ?></strong> €<?php echo number_format($preauth->amount, 2); ?></p>
            <p><strong><?php _e('Status:', 'informatiq-eb-redsys'); ?></strong> 
                <span class="preauth-status status-<?php echo esc_attr($preauth->status); ?>">
                    <?php echo ucfirst($preauth->status); ?>
                </span>
            </p>
            <p><strong><?php _e('Auth Code:', 'informatiq-eb-redsys'); ?></strong> <code><?php echo esc_html($preauth->auth_code); ?></code></p>
            <p><strong><?php _e('Created:', 'informatiq-eb-redsys'); ?></strong> <?php echo date_i18n(get_option('datetime_format'), strtotime($preauth->created_at)); ?></p>
            
            <?php if ($preauth->status === 'active'): ?>
                <p><strong><?php _e('Expires:', 'informatiq-eb-redsys'); ?></strong> <?php echo date_i18n(get_option('datetime_format'), strtotime($preauth->expires_at)); ?></p>
                
                <div class="preauth-actions">
                    <button class="button button-primary capture-preauth" 
                            data-preauth-id="<?php echo $preauth->id; ?>"
                            data-booking-id="<?php echo $post->ID; ?>">
                        <?php _e('Capture Payment', 'informatiq-eb-redsys'); ?>
                    </button>
                    <button class="button button-secondary cancel-preauth" 
                            data-preauth-id="<?php echo $preauth->id; ?>"
                            data-booking-id="<?php echo $post->ID; ?>">
                        <?php _e('Cancel Preauth', 'informatiq-eb-redsys'); ?>
                    </button>
                </div>
            <?php endif; ?>
        </div>
        <?php
    }
    
    /**
     * Create preauthorization database table
     */
    public function create_preauth_table() {
        global $wpdb;
        
        $table_name = $wpdb->prefix . 'eb_preauthorizations';
        
        $charset_collate = $wpdb->get_charset_collate();
        
        $sql = "CREATE TABLE {$table_name} (
            id int(11) NOT NULL AUTO_INCREMENT,
            booking_id int(11) NOT NULL,
            customer_email varchar(255) NOT NULL,
            amount decimal(10,2) NOT NULL,
            order_number varchar(20) NOT NULL,
            auth_code varchar(20) NOT NULL,
            status varchar(20) DEFAULT 'active',
            created_at datetime NOT NULL,
            expires_at datetime NOT NULL,
            captured_at datetime,
            cancelled_at datetime,
            updated_at datetime,
            PRIMARY KEY (id),
            KEY booking_id (booking_id),
            KEY status (status),
            KEY expires_at (expires_at)
        ) {$charset_collate};";
        
        require_once ABSPATH . 'wp-admin/includes/upgrade.php';
        dbDelta($sql);
    }
    
    /**
     * Enqueue admin scripts
     */
    public function enqueue_admin_scripts($hook) {
        if (strpos($hook, 'eb-preauthorizations') !== false || $hook === 'post.php') {
            wp_enqueue_script(
                'eb-preauth-admin',
                plugin_dir_url(__FILE__) . '../assets/js/preauth-admin.js',
                array('jquery'),
                '1.0.0',
                true
            );
            
            wp_localize_script('eb-preauth-admin', 'ebPreauth', array(
                'ajaxurl' => admin_url('admin-ajax.php'),
                'nonce' => wp_create_nonce('preauth_nonce'),
                'strings' => array(
                    'confirmCapture' => __('Are you sure you want to capture this preauthorization?', 'informatiq-eb-redsys'),
                    'confirmCancel' => __('Are you sure you want to cancel this preauthorization?', 'informatiq-eb-redsys')
                )
            ));
        }
    }
}

// Initialize the class
new EB_Redsys_Preauthorization();