<?php
/**
 * Main Plugin class.
 *
 * @package Magdev\WpBnb
 */

declare( strict_types=1 );

namespace Magdev\WpBnb;

use Magdev\WpBnb\Admin\Calendar as CalendarAdmin;
use Magdev\WpBnb\Admin\Dashboard as DashboardAdmin;
use Magdev\WpBnb\Admin\Reports as ReportsAdmin;
use Magdev\WpBnb\Admin\Seasons as SeasonsAdmin;
use Magdev\WpBnb\Blocks\BlockRegistrar;
use Magdev\WpBnb\Booking\Availability;
use Magdev\WpBnb\Booking\EmailNotifier;
use Magdev\WpBnb\Frontend\Search;
use Magdev\WpBnb\Frontend\Shortcodes;
use Magdev\WpBnb\Integration\CF7;
use Magdev\WpBnb\Integration\Prometheus;
use Magdev\WpBnb\Frontend\Widgets\AvailabilityCalendar;
use Magdev\WpBnb\Frontend\Widgets\BuildingRooms;
use Magdev\WpBnb\Frontend\Widgets\SimilarRooms;
use Magdev\WpBnb\License\Manager as LicenseManager;
use Magdev\WpBnb\License\Updater as LicenseUpdater;
use Magdev\WcLicensedProductClient\Dto\UpdateInfo;
use Magdev\WpBnb\PostTypes\Booking;
use Magdev\WpBnb\PostTypes\Building;
use Magdev\WpBnb\PostTypes\Guest;
use Magdev\WpBnb\PostTypes\Room;
use Magdev\WpBnb\PostTypes\Service;
use Magdev\WpBnb\Pricing\Calculator;
use Magdev\WpBnb\Privacy\Manager as PrivacyManager;
use Magdev\WpBnb\Pricing\Season;
use Magdev\WpBnb\Taxonomies\Amenity;
use Magdev\WpBnb\Taxonomies\RoomType;
use Magdev\WpBnb\Taxonomies\ServiceCategory;
use Twig\Environment;
use Twig\Loader\FilesystemLoader;

/**
 * Main Plugin singleton class.
 */
final class Plugin {

	/**
	 * Plugin instance.
	 *
	 * @var Plugin|null
	 */
	private static ?Plugin $instance = null;

	/**
	 * Twig environment.
	 *
	 * @var Environment|null
	 */
	private ?Environment $twig = null;

	/**
	 * Get plugin instance.
	 *
	 * @return Plugin
	 */
	public static function get_instance(): Plugin {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	/**
	 * Private constructor to enforce singleton.
	 */
	private function __construct() {
		$this->init_hooks();
		$this->init_components();
	}

	/**
	 * Initialize WordPress hooks.
	 *
	 * @return void
	 */
	private function init_hooks(): void {
		// Load text domain.
		add_action( 'init', array( $this, 'load_textdomain' ) );

		// Register assets.
		add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_admin_assets' ) );
		add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_frontend_assets' ) );

		// Add plugin action links.
		add_filter( 'plugin_action_links_' . WP_BNB_BASENAME, array( $this, 'add_action_links' ) );

		// Register custom post types and taxonomies.
		$this->register_post_types();
		$this->register_taxonomies();
	}

	/**
	 * Register custom post types.
	 *
	 * @return void
	 */
	private function register_post_types(): void {
		Building::init();
		Room::init();
		Booking::init();
		Guest::init();
		Service::init();
	}

	/**
	 * Register custom taxonomies.
	 *
	 * @return void
	 */
	private function register_taxonomies(): void {
		// Taxonomies must be registered before post types that use them.
		Amenity::init();
		RoomType::init();
		ServiceCategory::init();
	}

	/**
	 * Initialize plugin components.
	 *
	 * @return void
	 */
	private function init_components(): void {
		// Initialize License Manager (always active for admin).
		LicenseManager::get_instance();

		// Initialize auto-updater (requires license configuration).
		$this->init_updater();

		// Initialize Contact Form 7 integration if CF7 is active.
		// This runs in both admin (for tag generators) and frontend (for form rendering).
		if ( class_exists( 'WPCF7' ) ) {
			CF7::init();
		}

		// Initialize Prometheus metrics integration.
		Prometheus::init();

		// Initialize admin components.
		if ( is_admin() ) {
			$this->init_admin();
		}

		// Initialize frontend components only if licensed.
		if ( ! is_admin() && LicenseManager::is_license_valid() ) {
			$this->init_frontend();
		}
	}

	/**
	 * Initialize the plugin auto-updater.
	 *
	 * @return void
	 */
	private function init_updater(): void {
		$updater = new LicenseUpdater(
			plugin_file: WP_BNB_PATH . 'wp-bnb.php',
			current_version: WP_BNB_VERSION,
		);
		$updater->init();
	}

	/**
	 * Initialize admin components.
	 *
	 * @return void
	 */
	private function init_admin(): void {
		// Admin menu and settings will be added here.
		add_action( 'admin_menu', array( $this, 'register_admin_menu' ) );
		add_action( 'admin_menu', array( $this, 'reorder_admin_menu' ), 99 );
		add_action( 'admin_init', array( $this, 'register_settings' ) );

		// Initialize seasons admin page.
		SeasonsAdmin::init();

		// Initialize calendar admin page.
		CalendarAdmin::init();

		// Initialize email notifier.
		EmailNotifier::init();

		// Initialize privacy manager for GDPR compliance.
		PrivacyManager::init();

		// Register AJAX handlers.
		add_action( 'wp_ajax_wp_bnb_check_availability', array( $this, 'ajax_check_availability' ) );
		add_action( 'wp_ajax_wp_bnb_search_guest', array( $this, 'ajax_search_guest' ) );
	}

	/**
	 * Initialize frontend components.
	 *
	 * @return void
	 */
	private function init_frontend(): void {
		// Initialize search (registers AJAX handlers).
		Search::init();

		// Initialize shortcodes.
		Shortcodes::init();

		// Initialize Gutenberg blocks.
		BlockRegistrar::init();

		// Register widgets.
		add_action( 'widgets_init', array( $this, 'register_widgets' ) );
	}

	/**
	 * Register frontend widgets.
	 *
	 * @return void
	 */
	public function register_widgets(): void {
		register_widget( SimilarRooms::class );
		register_widget( BuildingRooms::class );
		register_widget( AvailabilityCalendar::class );
	}

	/**
	 * Load plugin text domain.
	 *
	 * @return void
	 */
	public function load_textdomain(): void {
		load_plugin_textdomain(
			'wp-bnb',
			false,
			dirname( WP_BNB_BASENAME ) . '/languages'
		);
	}

	/**
	 * Enqueue admin assets.
	 *
	 * @param string $hook_suffix Current admin page hook.
	 * @return void
	 */
	public function enqueue_admin_assets( string $hook_suffix ): void {
		global $post_type;

		// Check if we're on plugin pages or editing our custom post types.
		$is_plugin_page   = strpos( $hook_suffix, 'wp-bnb' ) !== false;
		$is_our_post_type = in_array( $post_type, array( Building::POST_TYPE, Room::POST_TYPE, Booking::POST_TYPE, Guest::POST_TYPE, Service::POST_TYPE ), true );
		$is_edit_screen   = in_array( $hook_suffix, array( 'post.php', 'post-new.php' ), true );
		$is_dashboard     = 'toplevel_page_wp-bnb' === $hook_suffix;

		if ( ! $is_plugin_page && ! ( $is_our_post_type && $is_edit_screen ) ) {
			return;
		}

		wp_enqueue_style(
			'wp-bnb-admin',
			WP_BNB_URL . 'assets/css/admin.css',
			array(),
			WP_BNB_VERSION
		);

		$script_deps = array( 'jquery' );

		// Add media dependencies for room gallery.
		if ( Room::POST_TYPE === $post_type && $is_edit_screen ) {
			wp_enqueue_media();
			$script_deps[] = 'jquery-ui-sortable';
		}

		// Add Chart.js for dashboard.
		if ( $is_dashboard ) {
			wp_enqueue_script(
				'chartjs',
				'https://cdn.jsdelivr.net/npm/chart.js@4.4.1/dist/chart.umd.min.js',
				array(),
				'4.4.1',
				true
			);
			$script_deps[] = 'chartjs';
		}

		wp_enqueue_script(
			'wp-bnb-admin',
			WP_BNB_URL . 'assets/js/admin.js',
			$script_deps,
			WP_BNB_VERSION,
			true
		);

		// Build localize data.
		$localize_data = array(
			'ajaxUrl'     => admin_url( 'admin-ajax.php' ),
			'nonce'       => wp_create_nonce( 'wp_bnb_admin_nonce' ),
			'postType'    => $post_type,
			'isDashboard' => $is_dashboard,
			'i18n'        => array(
				'validating'            => __( 'Validating...', 'wp-bnb' ),
				'activating'            => __( 'Activating...', 'wp-bnb' ),
				'error'                 => __( 'An error occurred. Please try again.', 'wp-bnb' ),
				'selectImages'          => __( 'Select Images', 'wp-bnb' ),
				'addToGallery'          => __( 'Add to Gallery', 'wp-bnb' ),
				'confirmRemove'         => __( 'Are you sure you want to remove this image?', 'wp-bnb' ),
				'increase'              => __( 'increase', 'wp-bnb' ),
				'discount'              => __( 'discount', 'wp-bnb' ),
				'normalPrice'           => __( 'Normal price', 'wp-bnb' ),
				'checking'              => __( 'Checking availability...', 'wp-bnb' ),
				'available'             => __( 'Available', 'wp-bnb' ),
				'notAvailable'          => __( 'Not available - conflicts with existing booking', 'wp-bnb' ),
				'selectRoomAndDates'    => __( 'Select room and dates to check availability', 'wp-bnb' ),
				'nights'                => __( 'nights', 'wp-bnb' ),
				'night'                 => __( 'night', 'wp-bnb' ),
				'calculating'           => __( 'Calculating price...', 'wp-bnb' ),
				'searchingGuests'       => __( 'Searching...', 'wp-bnb' ),
				'noGuestsFound'         => __( 'No guests found', 'wp-bnb' ),
				'selectGuest'           => __( 'Select', 'wp-bnb' ),
				'guestBlocked'          => __( 'Blocked', 'wp-bnb' ),
				'perNightDescription'   => __( 'This price will be charged per night of the stay.', 'wp-bnb' ),
				'perBookingDescription' => __( 'This price will be charged once for the booking.', 'wp-bnb' ),
				'justNow'               => __( 'Just now', 'wp-bnb' ),
				'updateAvailable'       => __( 'Update available!', 'wp-bnb' ),
				'upToDate'              => __( '(You are up to date)', 'wp-bnb' ),
				'checkingUpdates'       => __( 'Checking for updates...', 'wp-bnb' ),
				'occupancy'             => __( 'Occupancy %', 'wp-bnb' ),
				'revenue'               => __( 'Revenue', 'wp-bnb' ),
			),
		);

		// Add chart data for dashboard.
		if ( $is_dashboard ) {
			$localize_data['chartData'] = array(
				'occupancy' => DashboardAdmin::get_occupancy_trend_data( 30 ),
				'revenue'   => DashboardAdmin::get_revenue_trend_data( 6 ),
			);
		}

		wp_localize_script( 'wp-bnb-admin', 'wpBnbAdmin', $localize_data );
	}

	/**
	 * Enqueue frontend assets.
	 *
	 * @return void
	 */
	public function enqueue_frontend_assets(): void {
		// Only load if licensed.
		if ( ! LicenseManager::is_license_valid() ) {
			return;
		}

		wp_enqueue_style(
			'wp-bnb-frontend',
			WP_BNB_URL . 'assets/css/frontend.css',
			array(),
			WP_BNB_VERSION
		);

		wp_enqueue_script(
			'wp-bnb-frontend',
			WP_BNB_URL . 'assets/js/frontend.js',
			array(),
			WP_BNB_VERSION,
			true
		);

		wp_localize_script(
			'wp-bnb-frontend',
			'wpBnbFrontend',
			array(
				'ajaxUrl' => admin_url( 'admin-ajax.php' ),
				'nonce'   => wp_create_nonce( 'wp_bnb_frontend_nonce' ),
				'i18n'    => array(
					'searching'        => __( 'Searching...', 'wp-bnb' ),
					'noResults'        => __( 'No rooms found matching your criteria.', 'wp-bnb' ),
					'resultsFound'     => __( '%d rooms found', 'wp-bnb' ),
					'loadMore'         => __( 'Load More', 'wp-bnb' ),
					'viewDetails'      => __( 'View Details', 'wp-bnb' ),
					'perNight'         => __( 'night', 'wp-bnb' ),
					'guests'           => __( 'guests', 'wp-bnb' ),
					'invalidDateRange' => __( 'Check-out must be after check-in', 'wp-bnb' ),
					'selectDates'      => __( 'Please select check-in and check-out dates.', 'wp-bnb' ),
					'available'        => __( 'Room is available!', 'wp-bnb' ),
					'notAvailable'     => __( 'Sorry, the room is not available for these dates.', 'wp-bnb' ),
					'totalPrice'       => __( 'Total', 'wp-bnb' ),
					'bookNow'          => __( 'Book Now', 'wp-bnb' ),
					'total'            => __( 'Total', 'wp-bnb' ),
					'nights'           => __( 'nights', 'wp-bnb' ),
					'basePrice'        => __( 'Base', 'wp-bnb' ),
					'weekendSurcharge' => __( 'Weekend surcharge', 'wp-bnb' ),
					'season'           => __( 'Season', 'wp-bnb' ),
				),
			)
		);

		// Load CF7 integration assets if CF7 is active.
		if ( class_exists( 'WPCF7' ) ) {
			wp_enqueue_style(
				'wp-bnb-cf7',
				WP_BNB_URL . 'assets/css/cf7-integration.css',
				array( 'contact-form-7' ),
				WP_BNB_VERSION
			);

			wp_enqueue_script(
				'wp-bnb-cf7',
				WP_BNB_URL . 'assets/js/cf7-integration.js',
				array( 'contact-form-7' ),
				WP_BNB_VERSION,
				true
			);

			wp_localize_script(
				'wp-bnb-cf7',
				'wpBnbCF7',
				array(
					'ajaxUrl' => admin_url( 'admin-ajax.php' ),
					'nonce'   => wp_create_nonce( 'wp_bnb_frontend_nonce' ),
					'i18n'    => array(
						'selectRoom'       => __( '-- Select Room --', 'wp-bnb' ),
						'checking'         => __( 'Checking availability...', 'wp-bnb' ),
						'available'        => __( 'Room is available!', 'wp-bnb' ),
						'unavailable'      => __( 'Room is not available for these dates', 'wp-bnb' ),
						'invalidDateRange' => __( 'Check-out must be after check-in', 'wp-bnb' ),
						'capacityExceeded' => __( 'Maximum %d guests for this room', 'wp-bnb' ),
						'estimatedTotal'   => __( 'Estimated Total', 'wp-bnb' ),
						'nights'           => __( 'nights', 'wp-bnb' ),
					),
				)
			);
		}
	}

	/**
	 * Add plugin action links.
	 *
	 * @param array $links Existing plugin links.
	 * @return array
	 */
	public function add_action_links( array $links ): array {
		$plugin_links = array(
			'<a href="' . esc_url( admin_url( 'admin.php?page=wp-bnb-settings' ) ) . '">' . esc_html__( 'Settings', 'wp-bnb' ) . '</a>',
		);
		return array_merge( $plugin_links, $links );
	}

	/**
	 * Register admin menu.
	 *
	 * @return void
	 */
	public function register_admin_menu(): void {
		// Main menu.
		add_menu_page(
			__( 'WP BnB', 'wp-bnb' ),
			__( 'WP BnB', 'wp-bnb' ),
			'manage_options',
			'wp-bnb',
			array( $this, 'render_dashboard_page' ),
			'dashicons-building',
			30
		);

		// Dashboard submenu.
		add_submenu_page(
			'wp-bnb',
			__( 'Dashboard', 'wp-bnb' ),
			__( 'Dashboard', 'wp-bnb' ),
			'manage_options',
			'wp-bnb',
			array( $this, 'render_dashboard_page' )
		);

		// Reports submenu.
		add_submenu_page(
			'wp-bnb',
			__( 'Reports', 'wp-bnb' ),
			__( 'Reports', 'wp-bnb' ),
			'manage_options',
			'wp-bnb-reports',
			array( $this, 'render_reports_page' )
		);

		// Settings submenu.
		add_submenu_page(
			'wp-bnb',
			__( 'Settings', 'wp-bnb' ),
			__( 'Settings', 'wp-bnb' ),
			'manage_options',
			'wp-bnb-settings',
			array( $this, 'render_settings_page' )
		);
	}

	/**
	 * Reorder the admin submenu items.
	 *
	 * Places Dashboard at top, Settings at bottom, and organizes
	 * the remaining items in logical order.
	 *
	 * @return void
	 */
	public function reorder_admin_menu(): void {
		global $submenu;

		if ( ! isset( $submenu['wp-bnb'] ) ) {
			return;
		}

		// Define the desired order of menu slugs.
		$desired_order = array(
			'wp-bnb',                          // Dashboard.
			'edit.php?post_type=bnb_building', // Buildings.
			'edit.php?post_type=bnb_room',     // Rooms.
			'edit.php?post_type=bnb_booking',  // Bookings.
			'edit.php?post_type=bnb_guest',    // Guests.
			'edit.php?post_type=bnb_service',  // Services.
			'wp-bnb-calendar',                 // Calendar.
			'wp-bnb-reports',                  // Reports.
			'wp-bnb-seasons',                  // Seasons.
			'wp-bnb-settings',                 // Settings (always last).
		);

		$current_menu = $submenu['wp-bnb'];
		$ordered_menu = array();
		$index        = 0;

		// Add items in the desired order.
		foreach ( $desired_order as $slug ) {
			foreach ( $current_menu as $key => $item ) {
				if ( $item[2] === $slug ) {
					$ordered_menu[ $index ] = $item;
					unset( $current_menu[ $key ] );
					++$index;
					break;
				}
			}
		}

		// Append any remaining items not in the desired order.
		foreach ( $current_menu as $item ) {
			$ordered_menu[ $index ] = $item;
			++$index;
		}

		$submenu['wp-bnb'] = $ordered_menu;
	}

	/**
	 * Register plugin settings.
	 *
	 * @return void
	 */
	public function register_settings(): void {
		// License settings are handled by LicenseManager.
		// Additional settings will be added here.
	}

	/**
	 * Render dashboard page.
	 *
	 * @return void
	 */
	public function render_dashboard_page(): void {
		DashboardAdmin::render();
	}

	/**
	 * Render reports page.
	 *
	 * @return void
	 */
	public function render_reports_page(): void {
		ReportsAdmin::render();
	}

	/**
	 * Render settings page.
	 *
	 * @return void
	 */
	public function render_settings_page(): void {
		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Tab switching only.
		$active_tab = isset( $_GET['tab'] ) ? sanitize_key( $_GET['tab'] ) : 'general';

		// Handle form submission.
		if ( isset( $_POST['wp_bnb_settings_nonce'] ) && wp_verify_nonce( sanitize_key( $_POST['wp_bnb_settings_nonce'] ), 'wp_bnb_save_settings' ) ) {
			$this->save_settings( $active_tab );
		}
		?>
		<div class="wrap">
			<h1><?php esc_html_e( 'WP BnB Settings', 'wp-bnb' ); ?></h1>

			<nav class="nav-tab-wrapper">
				<a href="<?php echo esc_url( admin_url( 'admin.php?page=wp-bnb-settings&tab=general' ) ); ?>"
				   class="nav-tab <?php echo 'general' === $active_tab ? 'nav-tab-active' : ''; ?>">
					<?php esc_html_e( 'General', 'wp-bnb' ); ?>
				</a>
				<a href="<?php echo esc_url( admin_url( 'admin.php?page=wp-bnb-settings&tab=pricing' ) ); ?>"
				   class="nav-tab <?php echo 'pricing' === $active_tab ? 'nav-tab-active' : ''; ?>">
					<?php esc_html_e( 'Pricing', 'wp-bnb' ); ?>
				</a>
				<a href="<?php echo esc_url( admin_url( 'admin.php?page=wp-bnb-settings&tab=license' ) ); ?>"
				   class="nav-tab <?php echo 'license' === $active_tab ? 'nav-tab-active' : ''; ?>">
					<?php esc_html_e( 'License', 'wp-bnb' ); ?>
				</a>
				<a href="<?php echo esc_url( admin_url( 'admin.php?page=wp-bnb-settings&tab=updates' ) ); ?>"
				   class="nav-tab <?php echo 'updates' === $active_tab ? 'nav-tab-active' : ''; ?>">
					<?php esc_html_e( 'Updates', 'wp-bnb' ); ?>
				</a>
				<a href="<?php echo esc_url( admin_url( 'admin.php?page=wp-bnb-settings&tab=metrics' ) ); ?>"
				   class="nav-tab <?php echo 'metrics' === $active_tab ? 'nav-tab-active' : ''; ?>">
					<?php esc_html_e( 'Metrics', 'wp-bnb' ); ?>
				</a>
			</nav>

			<div class="tab-content">
				<?php
				switch ( $active_tab ) {
					case 'pricing':
						$this->render_pricing_settings();
						break;
					case 'license':
						$this->render_license_settings();
						break;
					case 'updates':
						$this->render_updates_settings();
						break;
					case 'metrics':
						$this->render_metrics_settings();
						break;
					default:
						$this->render_general_settings();
						break;
				}
				?>
			</div>
		</div>
		<?php
	}

	/**
	 * Render general settings tab.
	 *
	 * @return void
	 */
	private function render_general_settings(): void {
		?>
		<form method="post" action="">
			<?php wp_nonce_field( 'wp_bnb_save_settings', 'wp_bnb_settings_nonce' ); ?>

			<h2><?php esc_html_e( 'Business Information', 'wp-bnb' ); ?></h2>

			<table class="form-table" role="presentation">
				<tr>
					<th scope="row">
						<label for="wp_bnb_business_name"><?php esc_html_e( 'Business Name', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="text" name="wp_bnb_business_name" id="wp_bnb_business_name"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_business_name', '' ) ); ?>"
							   class="regular-text">
						<p class="description"><?php esc_html_e( 'The name of your B&B business.', 'wp-bnb' ); ?></p>
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_currency"><?php esc_html_e( 'Currency', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<select name="wp_bnb_currency" id="wp_bnb_currency">
							<?php
							$currencies = array(
								'CHF' => __( 'Swiss Franc (CHF)', 'wp-bnb' ),
								'EUR' => __( 'Euro (EUR)', 'wp-bnb' ),
								'USD' => __( 'US Dollar (USD)', 'wp-bnb' ),
								'GBP' => __( 'British Pound (GBP)', 'wp-bnb' ),
							);
							$current    = get_option( 'wp_bnb_currency', 'CHF' );
							foreach ( $currencies as $code => $label ) :
								?>
								<option value="<?php echo esc_attr( $code ); ?>" <?php selected( $current, $code ); ?>>
									<?php echo esc_html( $label ); ?>
								</option>
							<?php endforeach; ?>
						</select>
					</td>
				</tr>
			</table>

			<h2><?php esc_html_e( 'Address', 'wp-bnb' ); ?></h2>

			<table class="form-table" role="presentation">
				<tr>
					<th scope="row">
						<label for="wp_bnb_address_street"><?php esc_html_e( 'Street Address', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="text" name="wp_bnb_address_street" id="wp_bnb_address_street"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_address_street', '' ) ); ?>"
							   class="regular-text">
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_address_city"><?php esc_html_e( 'City', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="text" name="wp_bnb_address_city" id="wp_bnb_address_city"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_address_city', '' ) ); ?>"
							   class="regular-text">
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_address_postal"><?php esc_html_e( 'Postal Code', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="text" name="wp_bnb_address_postal" id="wp_bnb_address_postal"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_address_postal', '' ) ); ?>"
							   class="small-text">
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_address_country"><?php esc_html_e( 'Country', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="text" name="wp_bnb_address_country" id="wp_bnb_address_country"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_address_country', '' ) ); ?>"
							   class="regular-text">
					</td>
				</tr>
			</table>

			<h2><?php esc_html_e( 'Contact Information', 'wp-bnb' ); ?></h2>

			<table class="form-table" role="presentation">
				<tr>
					<th scope="row">
						<label for="wp_bnb_contact_email"><?php esc_html_e( 'Email Address', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="email" name="wp_bnb_contact_email" id="wp_bnb_contact_email"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_contact_email', '' ) ); ?>"
							   class="regular-text">
						<p class="description"><?php esc_html_e( 'Primary contact email for bookings and inquiries.', 'wp-bnb' ); ?></p>
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_contact_phone"><?php esc_html_e( 'Phone Number', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="tel" name="wp_bnb_contact_phone" id="wp_bnb_contact_phone"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_contact_phone', '' ) ); ?>"
							   class="regular-text" placeholder="+41 12 345 67 89">
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_contact_website"><?php esc_html_e( 'Website', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="url" name="wp_bnb_contact_website" id="wp_bnb_contact_website"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_contact_website', '' ) ); ?>"
							   class="regular-text" placeholder="https://">
					</td>
				</tr>
			</table>

			<h2><?php esc_html_e( 'Social Media', 'wp-bnb' ); ?></h2>

			<table class="form-table" role="presentation">
				<tr>
					<th scope="row">
						<label for="wp_bnb_social_facebook"><?php esc_html_e( 'Facebook', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="url" name="wp_bnb_social_facebook" id="wp_bnb_social_facebook"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_social_facebook', '' ) ); ?>"
							   class="regular-text" placeholder="https://facebook.com/yourpage">
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_social_instagram"><?php esc_html_e( 'Instagram', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="url" name="wp_bnb_social_instagram" id="wp_bnb_social_instagram"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_social_instagram', '' ) ); ?>"
							   class="regular-text" placeholder="https://instagram.com/yourprofile">
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_social_x"><?php esc_html_e( 'X (Twitter)', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="url" name="wp_bnb_social_x" id="wp_bnb_social_x"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_social_x', '' ) ); ?>"
							   class="regular-text" placeholder="https://x.com/yourhandle">
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_social_linkedin"><?php esc_html_e( 'LinkedIn', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="url" name="wp_bnb_social_linkedin" id="wp_bnb_social_linkedin"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_social_linkedin', '' ) ); ?>"
							   class="regular-text" placeholder="https://linkedin.com/company/yourcompany">
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_social_tripadvisor"><?php esc_html_e( 'TripAdvisor', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="url" name="wp_bnb_social_tripadvisor" id="wp_bnb_social_tripadvisor"
							   value="<?php echo esc_attr( get_option( 'wp_bnb_social_tripadvisor', '' ) ); ?>"
							   class="regular-text" placeholder="https://tripadvisor.com/...">
						<p class="description"><?php esc_html_e( 'Link to your TripAdvisor listing.', 'wp-bnb' ); ?></p>
					</td>
				</tr>
			</table>

			<?php submit_button( __( 'Save Settings', 'wp-bnb' ) ); ?>
		</form>
		<?php
	}

	/**
	 * Render pricing settings tab.
	 *
	 * @return void
	 */
	private function render_pricing_settings(): void {
		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Subtab switching only.
		$active_subtab  = isset( $_GET['subtab'] ) ? sanitize_key( $_GET['subtab'] ) : 'tiers';
		$short_term_max = get_option( 'wp_bnb_short_term_max_nights', 6 );
		$mid_term_max   = get_option( 'wp_bnb_mid_term_max_nights', 27 );
		$weekend_days   = get_option( 'wp_bnb_weekend_days', '5,6' );
		$seasons        = Season::all();

		$days_of_week  = array(
			1 => __( 'Monday', 'wp-bnb' ),
			2 => __( 'Tuesday', 'wp-bnb' ),
			3 => __( 'Wednesday', 'wp-bnb' ),
			4 => __( 'Thursday', 'wp-bnb' ),
			5 => __( 'Friday', 'wp-bnb' ),
			6 => __( 'Saturday', 'wp-bnb' ),
			7 => __( 'Sunday', 'wp-bnb' ),
		);
		$selected_days = array_map( 'intval', explode( ',', $weekend_days ) );

		$base_url = admin_url( 'admin.php?page=wp-bnb-settings&tab=pricing' );
		?>

		<!-- Pricing Subtabs -->
		<div class="wp-bnb-subtabs">
			<a href="<?php echo esc_url( $base_url . '&subtab=tiers' ); ?>"
			   class="wp-bnb-subtab <?php echo 'tiers' === $active_subtab ? 'active' : ''; ?>">
				<span class="dashicons dashicons-chart-bar"></span>
				<?php esc_html_e( 'Pricing Tiers', 'wp-bnb' ); ?>
			</a>
			<a href="<?php echo esc_url( $base_url . '&subtab=weekend' ); ?>"
			   class="wp-bnb-subtab <?php echo 'weekend' === $active_subtab ? 'active' : ''; ?>">
				<span class="dashicons dashicons-calendar-alt"></span>
				<?php esc_html_e( 'Weekend Days', 'wp-bnb' ); ?>
			</a>
			<a href="<?php echo esc_url( $base_url . '&subtab=seasons' ); ?>"
			   class="wp-bnb-subtab <?php echo 'seasons' === $active_subtab ? 'active' : ''; ?>">
				<span class="dashicons dashicons-image-filter"></span>
				<?php esc_html_e( 'Seasons', 'wp-bnb' ); ?>
			</a>
		</div>

		<form method="post" action="">
			<?php wp_nonce_field( 'wp_bnb_save_settings', 'wp_bnb_settings_nonce' ); ?>

			<?php if ( 'tiers' === $active_subtab ) : ?>
				<!-- Pricing Tiers Subtab -->
				<h2><?php esc_html_e( 'Pricing Tier Thresholds', 'wp-bnb' ); ?></h2>
				<p class="description"><?php esc_html_e( 'Define the number of nights that determine which pricing tier applies.', 'wp-bnb' ); ?></p>

				<table class="form-table" role="presentation">
					<tr>
						<th scope="row">
							<label for="wp_bnb_short_term_max_nights"><?php esc_html_e( 'Short-term (Nightly)', 'wp-bnb' ); ?></label>
						</th>
						<td>
							<input type="number" name="wp_bnb_short_term_max_nights" id="wp_bnb_short_term_max_nights"
								   value="<?php echo esc_attr( $short_term_max ); ?>"
								   class="small-text" min="1" max="30">
							<?php esc_html_e( 'nights or fewer', 'wp-bnb' ); ?>
							<p class="description"><?php esc_html_e( 'Stays up to this many nights use the nightly rate.', 'wp-bnb' ); ?></p>
						</td>
					</tr>
					<tr>
						<th scope="row">
							<label for="wp_bnb_mid_term_max_nights"><?php esc_html_e( 'Mid-term (Weekly)', 'wp-bnb' ); ?></label>
						</th>
						<td>
							<input type="number" name="wp_bnb_mid_term_max_nights" id="wp_bnb_mid_term_max_nights"
								   value="<?php echo esc_attr( $mid_term_max ); ?>"
								   class="small-text" min="7" max="90">
							<?php esc_html_e( 'nights or fewer', 'wp-bnb' ); ?>
							<p class="description"><?php esc_html_e( 'Stays longer than short-term but up to this many nights use the weekly rate.', 'wp-bnb' ); ?></p>
						</td>
					</tr>
					<tr>
						<th scope="row"><?php esc_html_e( 'Long-term (Monthly)', 'wp-bnb' ); ?></th>
						<td>
							<p class="description">
								<?php
								printf(
									/* translators: %s: number of nights */
									esc_html__( 'Stays longer than %s nights use the monthly rate.', 'wp-bnb' ),
									'<strong id="wp-bnb-long-term-min">' . esc_html( $mid_term_max ) . '</strong>'
								);
								?>
							</p>
						</td>
					</tr>
				</table>

				<?php submit_button( __( 'Save Pricing Tiers', 'wp-bnb' ) ); ?>

			<?php elseif ( 'weekend' === $active_subtab ) : ?>
				<!-- Weekend Days Subtab -->
				<h2><?php esc_html_e( 'Weekend Days', 'wp-bnb' ); ?></h2>
				<p class="description"><?php esc_html_e( 'Select which days are considered weekend days for weekend surcharges.', 'wp-bnb' ); ?></p>

				<table class="form-table" role="presentation">
					<tr>
						<th scope="row"><?php esc_html_e( 'Weekend Days', 'wp-bnb' ); ?></th>
						<td>
							<fieldset>
								<?php foreach ( $days_of_week as $day_num => $day_name ) : ?>
									<label style="display: inline-block; margin-right: 15px;">
										<input type="checkbox" name="wp_bnb_weekend_days[]" value="<?php echo esc_attr( $day_num ); ?>"
											<?php checked( in_array( $day_num, $selected_days, true ) ); ?>>
										<?php echo esc_html( $day_name ); ?>
									</label>
								<?php endforeach; ?>
							</fieldset>
							<p class="description"><?php esc_html_e( 'Weekend surcharges (configured per room) apply to nights starting on these days.', 'wp-bnb' ); ?></p>
						</td>
					</tr>
				</table>

				<?php submit_button( __( 'Save Weekend Days', 'wp-bnb' ) ); ?>

			<?php else : ?>
				<!-- Seasons Subtab -->
				<h2><?php esc_html_e( 'Seasonal Pricing', 'wp-bnb' ); ?></h2>
				<p class="description">
					<?php esc_html_e( 'Seasonal pricing allows you to adjust room rates based on time of year. Prices are multiplied by the season modifier.', 'wp-bnb' ); ?>
				</p>

				<p>
					<a href="<?php echo esc_url( admin_url( 'admin.php?page=wp-bnb-seasons' ) ); ?>" class="button button-primary">
						<span class="dashicons dashicons-admin-settings" style="vertical-align: text-top;"></span>
						<?php esc_html_e( 'Manage Seasons', 'wp-bnb' ); ?>
					</a>
				</p>

				<?php if ( ! empty( $seasons ) ) : ?>
					<table class="widefat striped" style="max-width: 700px; margin-top: 20px;">
						<thead>
							<tr>
								<th><?php esc_html_e( 'Season', 'wp-bnb' ); ?></th>
								<th><?php esc_html_e( 'Period', 'wp-bnb' ); ?></th>
								<th><?php esc_html_e( 'Modifier', 'wp-bnb' ); ?></th>
								<th><?php esc_html_e( 'Priority', 'wp-bnb' ); ?></th>
								<th><?php esc_html_e( 'Status', 'wp-bnb' ); ?></th>
							</tr>
						</thead>
						<tbody>
							<?php foreach ( $seasons as $season ) : ?>
								<tr>
									<td><strong><?php echo esc_html( $season->name ); ?></strong></td>
									<td><?php echo esc_html( $season->start_date . ' - ' . $season->end_date ); ?></td>
									<td><?php echo esc_html( $season->getModifierLabel() ); ?></td>
									<td><?php echo esc_html( $season->priority ); ?></td>
									<td>
										<?php if ( $season->active ) : ?>
											<span class="bnb-status-active"><?php esc_html_e( 'Active', 'wp-bnb' ); ?></span>
										<?php else : ?>
											<span class="bnb-status-inactive"><?php esc_html_e( 'Inactive', 'wp-bnb' ); ?></span>
										<?php endif; ?>
									</td>
								</tr>
							<?php endforeach; ?>
						</tbody>
					</table>
				<?php else : ?>
					<div class="notice notice-info inline" style="margin: 20px 0;">
						<p><?php esc_html_e( 'No seasons configured yet. Create seasons to apply price modifiers during specific periods.', 'wp-bnb' ); ?></p>
					</div>
				<?php endif; ?>

			<?php endif; ?>
		</form>
		<?php
	}

	/**
	 * Render license settings tab.
	 *
	 * @return void
	 */
	private function render_license_settings(): void {
		$license_key    = LicenseManager::get_license_key();
		$server_url     = LicenseManager::get_server_url();
		$license_status = LicenseManager::get_cached_status();
		$license_data   = LicenseManager::get_cached_data();
		$last_check     = LicenseManager::get_last_check();
		$is_localhost   = LicenseManager::is_localhost();
		?>
		<form method="post" action="">
			<?php wp_nonce_field( 'wp_bnb_save_settings', 'wp_bnb_settings_nonce' ); ?>

			<?php if ( $is_localhost ) : ?>
				<div class="notice notice-info inline" style="margin: 0 0 20px 0;">
					<p>
						<span class="dashicons dashicons-info" style="color: #72aee6;"></span>
						<strong><?php esc_html_e( 'Development Mode', 'wp-bnb' ); ?></strong>
						<?php esc_html_e( 'You are running on a local development environment. License validation is bypassed and all features are enabled.', 'wp-bnb' ); ?>
					</p>
				</div>
			<?php endif; ?>

			<h2><?php esc_html_e( 'License Status', 'wp-bnb' ); ?></h2>

			<table class="form-table" role="presentation">
				<tr>
					<th scope="row"><?php esc_html_e( 'Status', 'wp-bnb' ); ?></th>
					<td>
						<?php $this->render_license_status_badge( $license_status ); ?>
						<?php if ( $last_check > 0 ) : ?>
							<p class="description">
								<?php
								printf(
									/* translators: %s: Time ago string */
									esc_html__( 'Last checked: %s', 'wp-bnb' ),
									esc_html( human_time_diff( $last_check, time() ) . ' ' . __( 'ago', 'wp-bnb' ) )
								);
								?>
							</p>
						<?php endif; ?>
					</td>
				</tr>
				<?php if ( ! empty( $license_data['expires'] ) ) : ?>
					<tr>
						<th scope="row"><?php esc_html_e( 'Expires', 'wp-bnb' ); ?></th>
						<td>
							<?php echo esc_html( wp_date( get_option( 'date_format' ), strtotime( $license_data['expires'] ) ) ); ?>
						</td>
					</tr>
				<?php endif; ?>
			</table>

			<h2><?php esc_html_e( 'License Configuration', 'wp-bnb' ); ?></h2>

			<table class="form-table" role="presentation">
				<tr>
					<th scope="row">
						<label for="wp_bnb_license_server_url"><?php esc_html_e( 'License Server URL', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="url" name="wp_bnb_license_server_url" id="wp_bnb_license_server_url"
							   value="<?php echo esc_attr( $server_url ); ?>"
							   class="regular-text" placeholder="https://example.com">
						<p class="description"><?php esc_html_e( 'The URL of the license server.', 'wp-bnb' ); ?></p>
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_license_key"><?php esc_html_e( 'License Key', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="text" name="wp_bnb_license_key" id="wp_bnb_license_key"
							   value="<?php echo esc_attr( $license_key ); ?>"
							   class="regular-text" placeholder="XXXX-XXXX-XXXX-XXXX">
						<p class="description"><?php esc_html_e( 'Your license key from the purchase confirmation email.', 'wp-bnb' ); ?></p>
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_license_server_secret"><?php esc_html_e( 'Server Secret', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="password" name="wp_bnb_license_server_secret" id="wp_bnb_license_server_secret"
							   value="" class="regular-text"
							   placeholder="<?php echo ! empty( LicenseManager::get_server_secret() ) ? '••••••••••••••••' : ''; ?>">
						<p class="description"><?php esc_html_e( 'Leave empty to keep the current secret. The shared secret for secure communication.', 'wp-bnb' ); ?></p>
					</td>
				</tr>
			</table>

			<p class="submit">
				<?php submit_button( __( 'Save License Settings', 'wp-bnb' ), 'primary', 'submit', false ); ?>
				<button type="button" id="wp-bnb-validate-license" class="button button-secondary">
					<?php esc_html_e( 'Validate License', 'wp-bnb' ); ?>
				</button>
				<button type="button" id="wp-bnb-activate-license" class="button button-secondary">
					<?php esc_html_e( 'Activate License', 'wp-bnb' ); ?>
				</button>
				<span class="spinner" id="wp-bnb-license-spinner"></span>
			</p>

			<div id="wp-bnb-license-message" style="display: none;"></div>
		</form>
		<?php
	}

	/**
	 * Render updates settings tab.
	 *
	 * @return void
	 */
	private function render_updates_settings(): void {
		$updater = LicenseUpdater::get_instance();

		if ( null === $updater ) {
			?>
			<p><?php esc_html_e( 'Update checker is not available.', 'wp-bnb' ); ?></p>
			<?php
			return;
		}

		$current_version       = $updater->get_current_version();
		$last_check            = LicenseUpdater::get_last_check();
		$update_info           = $updater->get_cached_update_info();
		$update_available      = false;
		$latest_version        = $current_version;
		$notifications_enabled = LicenseUpdater::is_notifications_enabled();
		$auto_install_enabled  = LicenseUpdater::is_auto_install_enabled();
		$check_frequency       = LicenseUpdater::get_check_frequency();
		$license_valid         = LicenseManager::is_license_valid();

		if ( $update_info instanceof UpdateInfo && $update_info->updateAvailable ) {
			$latest_version   = $update_info->version ?? $current_version;
			$update_available = version_compare( $current_version, $latest_version, '<' );
		}
		?>
		<form method="post" action="">
			<?php wp_nonce_field( 'wp_bnb_save_settings', 'wp_bnb_settings_nonce' ); ?>

			<h2><?php esc_html_e( 'Update Status', 'wp-bnb' ); ?></h2>

			<table class="form-table" role="presentation">
				<tr>
					<th scope="row"><?php esc_html_e( 'Current Version', 'wp-bnb' ); ?></th>
					<td>
						<strong><?php echo esc_html( $current_version ); ?></strong>
					</td>
				</tr>
				<tr>
					<th scope="row"><?php esc_html_e( 'Latest Version', 'wp-bnb' ); ?></th>
					<td>
						<span id="wp-bnb-latest-version">
							<?php if ( $update_available ) : ?>
								<span style="color: #00a32a; font-weight: 600;">
									<?php echo esc_html( $latest_version ); ?>
								</span>
								<span class="dashicons dashicons-yes" style="color: #00a32a;"></span>
								<em><?php esc_html_e( 'Update available!', 'wp-bnb' ); ?></em>
							<?php else : ?>
								<?php echo esc_html( $latest_version ); ?>
								<span style="color: #646970;">
									<?php esc_html_e( '(You are up to date)', 'wp-bnb' ); ?>
								</span>
							<?php endif; ?>
						</span>
					</td>
				</tr>
				<tr>
					<th scope="row"><?php esc_html_e( 'Last Check', 'wp-bnb' ); ?></th>
					<td>
						<span id="wp-bnb-update-last-check">
							<?php if ( $last_check > 0 ) : ?>
								<?php
								printf(
									/* translators: %s: Time ago string */
									esc_html__( '%s ago', 'wp-bnb' ),
									esc_html( human_time_diff( $last_check, time() ) )
								);
								?>
							<?php else : ?>
								<?php esc_html_e( 'Never', 'wp-bnb' ); ?>
							<?php endif; ?>
						</span>
					</td>
				</tr>
			</table>

			<p style="margin-bottom: 30px;">
				<button type="button" id="wp-bnb-check-updates" class="button button-secondary">
					<span class="dashicons dashicons-update" style="vertical-align: text-top;"></span>
					<?php esc_html_e( 'Check for Updates', 'wp-bnb' ); ?>
				</button>
				<span class="spinner" id="wp-bnb-update-spinner"></span>
				<?php if ( $update_available ) : ?>
					<a href="<?php echo esc_url( admin_url( 'plugins.php' ) ); ?>" class="button button-primary">
						<?php esc_html_e( 'Go to Plugins Page', 'wp-bnb' ); ?>
					</a>
				<?php endif; ?>
			</p>

			<div id="wp-bnb-update-message" style="display: none; margin-bottom: 20px;"></div>

			<h2><?php esc_html_e( 'Update Settings', 'wp-bnb' ); ?></h2>

			<table class="form-table" role="presentation">
				<tr>
					<th scope="row"><?php esc_html_e( 'Enable Update Notifications', 'wp-bnb' ); ?></th>
					<td>
						<label>
							<input type="checkbox" name="wp_bnb_update_notifications_enabled"
								   value="yes" <?php checked( $notifications_enabled ); ?>>
							<?php esc_html_e( 'Check for updates from the license server', 'wp-bnb' ); ?>
						</label>
						<p class="description">
							<?php esc_html_e( 'When enabled, the plugin will check for updates and show notifications in the WordPress admin.', 'wp-bnb' ); ?>
						</p>
					</td>
				</tr>
				<tr>
					<th scope="row"><?php esc_html_e( 'Automatic Updates', 'wp-bnb' ); ?></th>
					<td>
						<label>
							<input type="checkbox" name="wp_bnb_auto_install_enabled"
								   value="yes" <?php checked( $auto_install_enabled ); ?>
								   <?php disabled( ! $license_valid ); ?>>
							<?php esc_html_e( 'Automatically install updates', 'wp-bnb' ); ?>
						</label>
						<?php if ( ! $license_valid ) : ?>
							<span style="color: #d63638; margin-left: 10px;">
								<?php esc_html_e( '(Requires valid license)', 'wp-bnb' ); ?>
							</span>
						<?php endif; ?>
						<p class="description">
							<?php esc_html_e( 'When enabled, updates will be automatically installed during WordPress background updates.', 'wp-bnb' ); ?>
						</p>
					</td>
				</tr>
				<tr>
					<th scope="row">
						<label for="wp_bnb_update_check_frequency"><?php esc_html_e( 'Check Frequency', 'wp-bnb' ); ?></label>
					</th>
					<td>
						<input type="number" name="wp_bnb_update_check_frequency" id="wp_bnb_update_check_frequency"
							   value="<?php echo esc_attr( $check_frequency ); ?>"
							   min="1" max="168" class="small-text">
						<?php esc_html_e( 'hours', 'wp-bnb' ); ?>
						<p class="description">
							<?php esc_html_e( 'How often to check for updates (1-168 hours). Default: 12 hours.', 'wp-bnb' ); ?>
						</p>
					</td>
				</tr>
			</table>

			<p class="submit">
				<?php submit_button( __( 'Save Update Settings', 'wp-bnb' ), 'primary', 'submit', false ); ?>
			</p>
		</form>
		<?php
	}

	/**
	 * Render metrics settings tab.
	 *
	 * @return void
	 */
	private function render_metrics_settings(): void {
		$metrics_enabled     = Prometheus::is_enabled();
		$prometheus_active   = class_exists( '\Magdev\WpPrometheus\Plugin' ) || defined( 'WP_PROMETHEUS_VERSION' );
		$dashboard_file      = WP_BNB_PATH . 'assets/grafana/wp-bnb-dashboard.json';
		$dashboard_available = file_exists( $dashboard_file );
		?>
		<form method="post" action="">
			<?php wp_nonce_field( 'wp_bnb_save_settings', 'wp_bnb_settings_nonce' ); ?>

			<h2><?php esc_html_e( 'Prometheus Metrics', 'wp-bnb' ); ?></h2>

			<?php if ( ! $prometheus_active ) : ?>
				<div class="notice notice-warning inline" style="margin: 0 0 20px 0;">
					<p>
						<span class="dashicons dashicons-warning" style="color: #dba617;"></span>
						<strong><?php esc_html_e( 'WP Prometheus not detected', 'wp-bnb' ); ?></strong><br>
						<?php
						printf(
							/* translators: %s: Plugin URL */
							esc_html__( 'The WP Prometheus plugin is required to expose metrics. Please install and activate it from %s.', 'wp-bnb' ),
							'<a href="https://src.bundespruefstelle.ch/magdev/wp-prometheus" target="_blank">wp-prometheus</a>'
						);
						?>
					</p>
				</div>
			<?php else : ?>
				<div class="notice notice-success inline" style="margin: 0 0 20px 0;">
					<p>
						<span class="dashicons dashicons-yes-alt" style="color: #00a32a;"></span>
						<strong><?php esc_html_e( 'WP Prometheus is active', 'wp-bnb' ); ?></strong>
						<?php esc_html_e( 'Metrics will be exposed via the /metrics/ endpoint.', 'wp-bnb' ); ?>
					</p>
				</div>
			<?php endif; ?>

			<table class="form-table" role="presentation">
				<tr>
					<th scope="row"><?php esc_html_e( 'Enable Metrics', 'wp-bnb' ); ?></th>
					<td>
						<label>
							<input type="checkbox" name="wp_bnb_metrics_enabled"
								   value="yes" <?php checked( $metrics_enabled ); ?>>
							<?php esc_html_e( 'Expose BnB metrics via Prometheus', 'wp-bnb' ); ?>
						</label>
						<p class="description">
							<?php esc_html_e( 'When enabled, occupancy, booking, revenue, and guest metrics will be available for Prometheus scraping.', 'wp-bnb' ); ?>
						</p>
					</td>
				</tr>
			</table>

			<h2><?php esc_html_e( 'Available Metrics', 'wp-bnb' ); ?></h2>
			<p class="description"><?php esc_html_e( 'The following metrics are exposed when enabled:', 'wp-bnb' ); ?></p>

			<table class="widefat striped" style="max-width: 800px; margin-top: 10px;">
				<thead>
					<tr>
						<th><?php esc_html_e( 'Metric', 'wp-bnb' ); ?></th>
						<th><?php esc_html_e( 'Type', 'wp-bnb' ); ?></th>
						<th><?php esc_html_e( 'Description', 'wp-bnb' ); ?></th>
					</tr>
				</thead>
				<tbody>
					<tr>
						<td><code>wp_bnb_buildings_total</code></td>
						<td><?php esc_html_e( 'Gauge', 'wp-bnb' ); ?></td>
						<td><?php esc_html_e( 'Total number of buildings', 'wp-bnb' ); ?></td>
					</tr>
					<tr>
						<td><code>wp_bnb_rooms_total</code></td>
						<td><?php esc_html_e( 'Gauge', 'wp-bnb' ); ?></td>
						<td><?php esc_html_e( 'Total rooms by status (available, occupied, maintenance, inactive)', 'wp-bnb' ); ?></td>
					</tr>
					<tr>
						<td><code>wp_bnb_bookings_total</code></td>
						<td><?php esc_html_e( 'Gauge', 'wp-bnb' ); ?></td>
						<td><?php esc_html_e( 'Total bookings by status (pending, confirmed, checked_in, checked_out, cancelled)', 'wp-bnb' ); ?></td>
					</tr>
					<tr>
						<td><code>wp_bnb_occupancy_rate_current</code></td>
						<td><?php esc_html_e( 'Gauge', 'wp-bnb' ); ?></td>
						<td><?php esc_html_e( 'Current room occupancy rate (percentage)', 'wp-bnb' ); ?></td>
					</tr>
					<tr>
						<td><code>wp_bnb_occupancy_rate_this_month</code></td>
						<td><?php esc_html_e( 'Gauge', 'wp-bnb' ); ?></td>
						<td><?php esc_html_e( 'Room occupancy rate for current month (percentage)', 'wp-bnb' ); ?></td>
					</tr>
					<tr>
						<td><code>wp_bnb_checkins_today</code></td>
						<td><?php esc_html_e( 'Gauge', 'wp-bnb' ); ?></td>
						<td><?php esc_html_e( 'Number of check-ins scheduled for today', 'wp-bnb' ); ?></td>
					</tr>
					<tr>
						<td><code>wp_bnb_checkouts_today</code></td>
						<td><?php esc_html_e( 'Gauge', 'wp-bnb' ); ?></td>
						<td><?php esc_html_e( 'Number of check-outs scheduled for today', 'wp-bnb' ); ?></td>
					</tr>
					<tr>
						<td><code>wp_bnb_revenue_this_month</code></td>
						<td><?php esc_html_e( 'Gauge', 'wp-bnb' ); ?></td>
						<td><?php esc_html_e( 'Total revenue for current month', 'wp-bnb' ); ?></td>
					</tr>
					<tr>
						<td><code>wp_bnb_revenue_ytd</code></td>
						<td><?php esc_html_e( 'Gauge', 'wp-bnb' ); ?></td>
						<td><?php esc_html_e( 'Total revenue year to date', 'wp-bnb' ); ?></td>
					</tr>
					<tr>
						<td><code>wp_bnb_booking_avg_value</code></td>
						<td><?php esc_html_e( 'Gauge', 'wp-bnb' ); ?></td>
						<td><?php esc_html_e( 'Average booking value', 'wp-bnb' ); ?></td>
					</tr>
					<tr>
						<td><code>wp_bnb_guests_total</code></td>
						<td><?php esc_html_e( 'Gauge', 'wp-bnb' ); ?></td>
						<td><?php esc_html_e( 'Total number of registered guests', 'wp-bnb' ); ?></td>
					</tr>
					<tr>
						<td><code>wp_bnb_guests_repeat</code></td>
						<td><?php esc_html_e( 'Gauge', 'wp-bnb' ); ?></td>
						<td><?php esc_html_e( 'Number of repeat guests (more than one booking)', 'wp-bnb' ); ?></td>
					</tr>
				</tbody>
			</table>

			<h2 style="margin-top: 30px;"><?php esc_html_e( 'Grafana Dashboard', 'wp-bnb' ); ?></h2>

			<?php if ( $dashboard_available ) : ?>
				<p>
					<?php esc_html_e( 'A pre-configured Grafana dashboard is available for visualizing WP BnB metrics.', 'wp-bnb' ); ?>
				</p>
				<p>
					<strong><?php esc_html_e( 'Dashboard file:', 'wp-bnb' ); ?></strong>
					<code>assets/grafana/wp-bnb-dashboard.json</code>
				</p>
				<p class="description">
					<?php esc_html_e( 'If WP Prometheus is installed, this dashboard will be automatically registered and available for export in the Prometheus settings.', 'wp-bnb' ); ?>
				</p>
			<?php else : ?>
				<div class="notice notice-warning inline">
					<p><?php esc_html_e( 'Grafana dashboard file not found.', 'wp-bnb' ); ?></p>
				</div>
			<?php endif; ?>

			<p class="submit">
				<?php submit_button( __( 'Save Metrics Settings', 'wp-bnb' ), 'primary', 'submit', false ); ?>
			</p>
		</form>
		<?php
	}

	/**
	 * Render license status badge.
	 *
	 * @param string $status License status.
	 * @return void
	 */
	private function render_license_status_badge( string $status ): void {
		$badges = array(
			'valid'        => array(
				'class' => 'dashicons-yes-alt',
				'color' => '#00a32a',
				'label' => __( 'Valid', 'wp-bnb' ),
			),
			'invalid'      => array(
				'class' => 'dashicons-dismiss',
				'color' => '#d63638',
				'label' => __( 'Invalid', 'wp-bnb' ),
			),
			'expired'      => array(
				'class' => 'dashicons-warning',
				'color' => '#dba617',
				'label' => __( 'Expired', 'wp-bnb' ),
			),
			'revoked'      => array(
				'class' => 'dashicons-dismiss',
				'color' => '#d63638',
				'label' => __( 'Revoked', 'wp-bnb' ),
			),
			'inactive'     => array(
				'class' => 'dashicons-marker',
				'color' => '#72aee6',
				'label' => __( 'Inactive', 'wp-bnb' ),
			),
			'unchecked'    => array(
				'class' => 'dashicons-info',
				'color' => '#72aee6',
				'label' => __( 'Not checked', 'wp-bnb' ),
			),
			'unconfigured' => array(
				'class' => 'dashicons-admin-generic',
				'color' => '#646970',
				'label' => __( 'Not configured', 'wp-bnb' ),
			),
		);

		$badge = $badges[ $status ] ?? $badges['unconfigured'];
		?>
		<span class="wp-bnb-license-status" style="color: <?php echo esc_attr( $badge['color'] ); ?>;">
			<span class="dashicons <?php echo esc_attr( $badge['class'] ); ?>"></span>
			<?php echo esc_html( $badge['label'] ); ?>
		</span>
		<?php
	}

	/**
	 * Save settings based on active tab.
	 *
	 * @param string $tab Active tab.
	 * @return void
	 */
	private function save_settings( string $tab ): void {
		switch ( $tab ) {
			case 'pricing':
				$this->save_pricing_settings();
				break;
			case 'license':
				$this->save_license_settings();
				break;
			case 'updates':
				$this->save_updates_settings();
				break;
			case 'metrics':
				$this->save_metrics_settings();
				break;
			default:
				$this->save_general_settings();
				break;
		}
	}

	/**
	 * Save general settings.
	 *
	 * @return void
	 */
	private function save_general_settings(): void {
		// Business Information.
		if ( isset( $_POST['wp_bnb_business_name'] ) ) {
			update_option( 'wp_bnb_business_name', sanitize_text_field( wp_unslash( $_POST['wp_bnb_business_name'] ) ) );
		}
		if ( isset( $_POST['wp_bnb_currency'] ) ) {
			update_option( 'wp_bnb_currency', sanitize_text_field( wp_unslash( $_POST['wp_bnb_currency'] ) ) );
		}

		// Address fields.
		$address_fields = array( 'street', 'city', 'postal', 'country' );
		foreach ( $address_fields as $field ) {
			$key = 'wp_bnb_address_' . $field;
			if ( isset( $_POST[ $key ] ) ) {
				update_option( $key, sanitize_text_field( wp_unslash( $_POST[ $key ] ) ) );
			}
		}

		// Contact fields.
		if ( isset( $_POST['wp_bnb_contact_email'] ) ) {
			update_option( 'wp_bnb_contact_email', sanitize_email( wp_unslash( $_POST['wp_bnb_contact_email'] ) ) );
		}
		if ( isset( $_POST['wp_bnb_contact_phone'] ) ) {
			update_option( 'wp_bnb_contact_phone', sanitize_text_field( wp_unslash( $_POST['wp_bnb_contact_phone'] ) ) );
		}
		if ( isset( $_POST['wp_bnb_contact_website'] ) ) {
			update_option( 'wp_bnb_contact_website', esc_url_raw( wp_unslash( $_POST['wp_bnb_contact_website'] ) ) );
		}

		// Social media fields.
		$social_fields = array( 'facebook', 'instagram', 'x', 'linkedin', 'tripadvisor' );
		foreach ( $social_fields as $field ) {
			$key = 'wp_bnb_social_' . $field;
			if ( isset( $_POST[ $key ] ) ) {
				update_option( $key, esc_url_raw( wp_unslash( $_POST[ $key ] ) ) );
			}
		}

		add_settings_error( 'wp_bnb_settings', 'settings_saved', __( 'Settings saved.', 'wp-bnb' ), 'success' );
		settings_errors( 'wp_bnb_settings' );
	}

	/**
	 * Save pricing settings.
	 *
	 * @return void
	 */
	private function save_pricing_settings(): void {
		if ( isset( $_POST['wp_bnb_short_term_max_nights'] ) ) {
			$value = absint( $_POST['wp_bnb_short_term_max_nights'] );
			$value = max( 1, min( 30, $value ) );
			update_option( 'wp_bnb_short_term_max_nights', $value );
		}

		if ( isset( $_POST['wp_bnb_mid_term_max_nights'] ) ) {
			$value = absint( $_POST['wp_bnb_mid_term_max_nights'] );
			$value = max( 7, min( 90, $value ) );
			update_option( 'wp_bnb_mid_term_max_nights', $value );
		}

		if ( isset( $_POST['wp_bnb_weekend_days'] ) && is_array( $_POST['wp_bnb_weekend_days'] ) ) {
			$days = array_map( 'absint', $_POST['wp_bnb_weekend_days'] );
			$days = array_filter( $days, fn( $d ) => $d >= 1 && $d <= 7 );
			update_option( 'wp_bnb_weekend_days', implode( ',', $days ) );
		} else {
			update_option( 'wp_bnb_weekend_days', '' );
		}

		add_settings_error( 'wp_bnb_settings', 'settings_saved', __( 'Pricing settings saved.', 'wp-bnb' ), 'success' );
		settings_errors( 'wp_bnb_settings' );
	}

	/**
	 * Save license settings.
	 *
	 * @return void
	 */
	private function save_license_settings(): void {
		$data = array(
			'license_key'   => isset( $_POST['wp_bnb_license_key'] ) ? sanitize_text_field( wp_unslash( $_POST['wp_bnb_license_key'] ) ) : '',
			'server_url'    => isset( $_POST['wp_bnb_license_server_url'] ) ? esc_url_raw( wp_unslash( $_POST['wp_bnb_license_server_url'] ) ) : '',
			'server_secret' => isset( $_POST['wp_bnb_license_server_secret'] ) ? sanitize_text_field( wp_unslash( $_POST['wp_bnb_license_server_secret'] ) ) : '',
		);

		LicenseManager::save_settings( $data );

		add_settings_error( 'wp_bnb_settings', 'settings_saved', __( 'License settings saved.', 'wp-bnb' ), 'success' );
		settings_errors( 'wp_bnb_settings' );
	}

	/**
	 * Save updates settings.
	 *
	 * @return void
	 */
	private function save_updates_settings(): void {
		$notifications_enabled = isset( $_POST['wp_bnb_update_notifications_enabled'] ) ? 'yes' : 'no';
		update_option( LicenseUpdater::OPTION_NOTIFICATIONS_ENABLED, $notifications_enabled );

		$auto_install_enabled = isset( $_POST['wp_bnb_auto_install_enabled'] ) ? 'yes' : 'no';
		update_option( LicenseUpdater::OPTION_AUTO_INSTALL_ENABLED, $auto_install_enabled );

		if ( isset( $_POST['wp_bnb_update_check_frequency'] ) ) {
			$frequency = absint( $_POST['wp_bnb_update_check_frequency'] );
			$frequency = max( 1, min( 168, $frequency ) ); // Clamp between 1-168 hours.
			update_option( LicenseUpdater::OPTION_CHECK_FREQUENCY, $frequency );

			// Clear update cache when frequency changes so new frequency takes effect.
			$updater = LicenseUpdater::get_instance();
			if ( null !== $updater ) {
				$updater->clear_cache();
			}
		}

		add_settings_error( 'wp_bnb_settings', 'settings_saved', __( 'Update settings saved.', 'wp-bnb' ), 'success' );
		settings_errors( 'wp_bnb_settings' );
	}

	/**
	 * Save metrics settings.
	 *
	 * @return void
	 */
	private function save_metrics_settings(): void {
		$metrics_enabled = isset( $_POST['wp_bnb_metrics_enabled'] ) ? 'yes' : 'no';
		update_option( Prometheus::OPTION_ENABLED, $metrics_enabled );

		add_settings_error( 'wp_bnb_settings', 'settings_saved', __( 'Metrics settings saved.', 'wp-bnb' ), 'success' );
		settings_errors( 'wp_bnb_settings' );
	}

	/**
	 * AJAX handler for checking room availability.
	 *
	 * @return void
	 */
	public function ajax_check_availability(): void {
		check_ajax_referer( 'wp_bnb_admin_nonce', 'nonce' );

		if ( ! current_user_can( 'edit_posts' ) ) {
			wp_send_json_error(
				array( 'message' => __( 'You do not have permission to perform this action.', 'wp-bnb' ) )
			);
		}

		$room_id   = isset( $_POST['room_id'] ) ? absint( $_POST['room_id'] ) : 0;
		$check_in  = isset( $_POST['check_in'] ) ? sanitize_text_field( wp_unslash( $_POST['check_in'] ) ) : '';
		$check_out = isset( $_POST['check_out'] ) ? sanitize_text_field( wp_unslash( $_POST['check_out'] ) ) : '';
		$exclude   = isset( $_POST['exclude_booking'] ) ? absint( $_POST['exclude_booking'] ) : null;

		if ( ! $room_id || ! $check_in || ! $check_out ) {
			wp_send_json_error(
				array( 'message' => __( 'Missing required parameters.', 'wp-bnb' ) )
			);
		}

		// Validate dates.
		if ( strtotime( $check_out ) <= strtotime( $check_in ) ) {
			wp_send_json_error(
				array( 'message' => __( 'Check-out date must be after check-in date.', 'wp-bnb' ) )
			);
		}

		$result = Availability::check_availability_with_price( $room_id, $check_in, $check_out, $exclude );

		wp_send_json_success( $result );
	}

	/**
	 * AJAX handler for searching guests by email.
	 *
	 * @return void
	 */
	public function ajax_search_guest(): void {
		check_ajax_referer( 'wp_bnb_admin_nonce', 'nonce' );

		if ( ! current_user_can( 'edit_posts' ) ) {
			wp_send_json_error(
				array( 'message' => __( 'You do not have permission to perform this action.', 'wp-bnb' ) )
			);
		}

		$search = isset( $_POST['search'] ) ? sanitize_text_field( wp_unslash( $_POST['search'] ) ) : '';

		if ( strlen( $search ) < 2 ) {
			wp_send_json_success( array( 'guests' => array() ) );
		}

		// Search by email or name.
		$guests = get_posts(
			array(
				'post_type'      => Guest::POST_TYPE,
				'post_status'    => 'publish',
				'posts_per_page' => 10,
				'meta_query'     => array(
					'relation' => 'OR',
					array(
						'key'     => '_bnb_guest_email',
						'value'   => $search,
						'compare' => 'LIKE',
					),
					array(
						'key'     => '_bnb_guest_first_name',
						'value'   => $search,
						'compare' => 'LIKE',
					),
					array(
						'key'     => '_bnb_guest_last_name',
						'value'   => $search,
						'compare' => 'LIKE',
					),
				),
			)
		);

		$results = array();
		foreach ( $guests as $guest ) {
			$status   = get_post_meta( $guest->ID, '_bnb_guest_status', true ) ?: 'active';
			$results[] = array(
				'id'     => $guest->ID,
				'name'   => Guest::get_full_name( $guest->ID ),
				'email'  => get_post_meta( $guest->ID, '_bnb_guest_email', true ),
				'phone'  => get_post_meta( $guest->ID, '_bnb_guest_phone', true ),
				'status' => $status,
			);
		}

		wp_send_json_success( array( 'guests' => $results ) );
	}

	/**
	 * Get Twig environment.
	 *
	 * @return Environment
	 */
	public function get_twig(): Environment {
		if ( null === $this->twig ) {
			$loader     = new FilesystemLoader( WP_BNB_PATH . 'templates' );
			$this->twig = new Environment(
				$loader,
				array(
					'cache' => WP_DEBUG ? false : WP_BNB_PATH . 'cache/twig',
					'debug' => WP_DEBUG,
				)
			);
		}
		return $this->twig;
	}

	/**
	 * Render a Twig template.
	 *
	 * @param string $template Template name.
	 * @param array  $context  Template context.
	 * @return string
	 */
	public function render( string $template, array $context = array() ): string {
		return $this->get_twig()->render( $template, $context );
	}
}