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-includes/widgets/class-wp-widget-calendar.php

@@ -0,0 +1,105 @@
+<?php
+/**
+ * Widget API: WP_Widget_Calendar class
+ *
+ * @package WordPress
+ * @subpackage Widgets
+ * @since 4.4.0
+ */
+
+/**
+ * Core class used to implement the Calendar widget.
+ *
+ * @since 2.8.0
+ *
+ * @see WP_Widget
+ */
+class WP_Widget_Calendar extends WP_Widget {
+	/**
+	 * Ensure that the ID attribute only appears in the markup once
+	 *
+	 * @since 4.4.0
+	 * @var int
+	 */
+	private static $instance = 0;
+
+	/**
+	 * Sets up a new Calendar widget instance.
+	 *
+	 * @since 2.8.0
+	 */
+	public function __construct() {
+		$widget_ops = array(
+			'classname'                   => 'widget_calendar',
+			'description'                 => __( 'A calendar of your site’s posts.' ),
+			'customize_selective_refresh' => true,
+			'show_instance_in_rest'       => true,
+		);
+		parent::__construct( 'calendar', __( 'Calendar' ), $widget_ops );
+	}
+
+	/**
+	 * Outputs the content for the current Calendar widget instance.
+	 *
+	 * @since 2.8.0
+	 *
+	 * @param array $args     Display arguments including 'before_title', 'after_title',
+	 *                        'before_widget', and 'after_widget'.
+	 * @param array $instance The settings for the particular instance of the widget.
+	 */
+	public function widget( $args, $instance ) {
+		$title = ! empty( $instance['title'] ) ? $instance['title'] : '';
+
+		/** This filter is documented in wp-includes/widgets/class-wp-widget-pages.php */
+		$title = apply_filters( 'widget_title', $title, $instance, $this->id_base );
+
+		echo $args['before_widget'];
+		if ( $title ) {
+			echo $args['before_title'] . $title . $args['after_title'];
+		}
+		if ( 0 === self::$instance ) {
+			echo '<div id="calendar_wrap" class="calendar_wrap">';
+		} else {
+			echo '<div class="calendar_wrap">';
+		}
+		get_calendar();
+		echo '</div>';
+		echo $args['after_widget'];
+
+		++self::$instance;
+	}
+
+	/**
+	 * Handles updating settings for the current Calendar widget instance.
+	 *
+	 * @since 2.8.0
+	 *
+	 * @param array $new_instance New settings for this instance as input by the user via
+	 *                            WP_Widget::form().
+	 * @param array $old_instance Old settings for this instance.
+	 * @return array Updated settings to save.
+	 */
+	public function update( $new_instance, $old_instance ) {
+		$instance          = $old_instance;
+		$instance['title'] = sanitize_text_field( $new_instance['title'] );
+
+		return $instance;
+	}
+
+	/**
+	 * Outputs the settings form for the Calendar widget.
+	 *
+	 * @since 2.8.0
+	 *
+	 * @param array $instance Current settings.
+	 */
+	public function form( $instance ) {
+		$instance = wp_parse_args( (array) $instance, array( 'title' => '' ) );
+		?>
+		<p>
+			<label for="<?php echo $this->get_field_id( 'title' ); ?>"><?php _e( 'Title:' ); ?></label>
+			<input class="widefat" id="<?php echo $this->get_field_id( 'title' ); ?>" name="<?php echo $this->get_field_name( 'title' ); ?>" type="text" value="<?php echo esc_attr( $instance['title'] ); ?>" />
+		</p>
+		<?php
+	}
+}