Hotel Raxa - Advanced Booking System Implementation

🏨 Hotel Booking Enhancements:
- Implemented Eagle Booking Advanced Pricing add-on
- Added Booking.com-style rate management system
- Created professional calendar interface for pricing
- Integrated deals and discounts functionality

💰 Advanced Pricing Features:
- Dynamic pricing models (per room, per person, per adult)
- Base rates, adult rates, and child rates management
- Length of stay discounts and early bird deals
- Mobile rates and secret deals implementation
- Seasonal promotions and flash sales

📅 Availability Management:
- Real-time availability tracking
- Stop sell and restriction controls
- Closed to arrival/departure functionality
- Minimum/maximum stay requirements
- Automatic sold-out management

💳 Payment Integration:
- Maintained Redsys payment gateway integration
- Seamless integration with existing Eagle Booking
- No modifications to core Eagle Booking plugin

🛠️ Technical Implementation:
- Custom database tables for advanced pricing
- WordPress hooks and filters integration
- AJAX-powered admin interface
- Data migration from existing Eagle Booking
- Professional calendar view for revenue management

📊 Admin Interface:
- Booking.com-style management dashboard
- Visual rate and availability calendar
- Bulk operations for date ranges
- Statistics and analytics dashboard
- Modal dialogs for quick editing

🔧 Code Quality:
- WordPress coding standards compliance
- Secure database operations with prepared statements
- Proper input validation and sanitization
- Error handling and logging
- Responsive admin interface

🤖 Generated with Claude Code (https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

wp-content/plugins/informatiq-eb-redsys/includes/api/hash.php

@@ -0,0 +1,55 @@
+<?php
+
+/**
+ * Replace hash()
+ *
+ * @category    PHP
+ * @package     PHP_Compat
+ * @license     LGPL - http://www.gnu.org/licenses/lgpl.html
+ * @copyright   2004-2007 Aidan Lister <aidan@php.net>, Arpad Ray <arpad@php.net>
+ * @link        http://php.net/function.hash
+ * @author      revulo <revulon@gmail.com>
+ * @since       PHP 5.1.2
+ * @require     PHP 4.0.0 (user_error)
+ */
+function php_compat_hash($algo, $data, $raw_output = false)
+{
+    $algo = strtolower($algo);
+    switch ($algo) {
+        case 'md5':
+            $hash = md5($data);
+            break;
+
+        case 'sha1':
+            if (!function_exists('sha1')) {
+                require dirname(__FILE__) . '/sha1.php';
+            }
+            $hash = sha1($data);
+            break;
+
+        case 'sha256':
+            require_once dirname(__FILE__) . '/sha256.php';
+            $hash = SHA256::hash($data);
+            break;
+
+        default:
+            user_error('hash(): Unknown hashing algorithm: ' . $algo, E_USER_WARNING);
+            return false;
+    }
+
+    if ($raw_output) {
+        return pack('H*', $hash);
+    } else {
+        return $hash;
+    }
+}
+
+
+// Define
+if (!function_exists('hash')) {
+    function hash($algo, $data, $raw_output = false)
+    {
+        return php_compat_hash($algo, $data, $raw_output);
+    }
+}
+?>