<?php

use Modula\Ai\Optimizer\Optimizer;

/**
 * The core plugin class.
 *
 * This is used to define internationalization, admin-specific hooks, and
 * public-facing site hooks.
 *
 * Also maintains the unique identifier of this plugin as well as the current
 * version of the plugin.
 *
 * @since      2.0.0
 */
class Modula {

	/**
	 * Define the core functionality of the plugin.
	 *
	 * Load the dependencies, define the locale, and set the hooks for the admin area and
	 * the public-facing side of the site.
	 *
	 * @since    2.0.0
	 */
	public function __construct() {
		$this->set_offer();
		$this->load_dependencies();
		$this->define_admin_hooks();
		$this->define_public_hooks();

		add_action( 'divi_extensions_init', array( $this, 'initialize_divi_extension' ) );

		// Gallery 'srcset' management.
		add_action( 'modula_before_gallery', array( $this, 'disable_wp_srcset' ) );
		add_action( 'modula_after_gallery', array( $this, 'enable_wp_srcset' ) );

		// backwards compatibility -- remove after 2 versions. curr ver 2.7.92
		add_action( 'admin_init', array( $this, 'after_modula_update' ) );

		add_action( 'admin_enqueue_scripts', array( $this, 'modula_enqueue_media' ) );
		add_action( 'wp_enqueue_media', array( $this, 'modula_enqueue_media' ) );

		add_action( 'plugins_loaded', array( $this, 'start_ai_hooks' ) );
		$this->compatibility_check();
	}

	private function load_dependencies() {

		require_once MODULA_PATH . 'includes/libraries/class-modula-template-loader.php';
		require_once MODULA_PATH . 'includes/helper/class-modula-helper.php';
		require_once MODULA_PATH . 'includes/admin/class-modula-image.php';
		require_once MODULA_PATH . 'includes/class-modula-script-manager.php';
		require_once MODULA_PATH . 'includes/public/modula-helper-functions.php';
		require_once MODULA_PATH . 'includes/troubleshoot/class-modula-troubleshooting.php';

		require_once MODULA_PATH . 'includes/admin/class-modula-cpt.php';
		// WPChill Upsells
		require_once MODULA_PATH . 'includes/admin/class-wpchill-upsells.php';
		require_once MODULA_PATH . 'includes/admin/class-modula-upsells.php';
		require_once MODULA_PATH . 'includes/admin/class-modula-admin.php';

		require_once MODULA_PATH . 'includes/public/class-modula-shortcode.php';
		require_once MODULA_PATH . 'includes/class-modula-gutenberg.php';

		require_once MODULA_PATH . 'includes/elementor/class-modula-elementor-check.php';

		require_once MODULA_PATH . 'includes/duplicator/class-modula-duplicator.php';

		require_once MODULA_PATH . 'includes/modula-beaver-block/class-modula-beaver.php';
		require_once MODULA_PATH . 'includes/widget/class-modula-widget.php';

		// Get the grid system
		require_once MODULA_PATH . 'includes/grid/class-modula-grid.php';

		// Backward Compatibility
		require_once MODULA_PATH . 'includes/class-modula-backward-compatibility.php';

		// Licensing
		require_once MODULA_PATH . 'includes/class-modula-licensing.php';

		// Compatibility with other plugins/themes
		require_once MODULA_PATH . 'includes/compatibility/class-modula-compatibility.php';

		// The meta handling class
		require_once MODULA_PATH . 'includes/public/meta/class-modula-meta.php';

		require_once MODULA_PATH . 'includes/admin/class-modula-notifications.php';
		require_once MODULA_PATH . 'includes/admin/wpchill/class-wpchill-notifications.php';

		// WPChill About Us Class.
		require_once MODULA_PATH . 'includes/admin/wpchill/class-wpchill-about-us.php';

		require_once MODULA_PATH . 'includes/class-scripts.php';
		require_once MODULA_PATH . 'includes/ai/class-client.php';
		require_once MODULA_PATH . 'includes/admin/class-gallery-listing-output.php';
		// Yoast/Rank Math/seopress image sitemaps
		require_once MODULA_PATH . 'includes/class-modula-image-sitemaps.php';
		if ( is_admin() ) {
			require_once MODULA_PATH . 'includes/admin/class-modula-readme-parser.php'; //added by Cristi in 2.7.8
			require_once MODULA_PATH . 'includes/admin/class-modula-importer-exporter.php';
			require_once MODULA_PATH . 'includes/class-modula-upgrades.php';
			require_once MODULA_PATH . 'includes/libraries/class-modula-review.php';
			require_once MODULA_PATH . 'includes/uninstall/class-modula-uninstall.php';
			require_once MODULA_PATH . 'includes/migrate/class-modula-importer.php';
			require_once MODULA_PATH . 'includes/migrate/class-modula-ajax-migrator.php';
			// Admin Helpers
			require_once MODULA_PATH . 'includes/admin/class-modula-admin-helpers.php';
			// The Modula Addons
			require_once MODULA_PATH . 'includes/admin/class-modula-addons.php';
			// Modula Debug Class
			require_once MODULA_PATH . 'includes/admin/class-modula-debug.php';
			require_once MODULA_PATH . 'includes/admin/class-modula-onboarding.php';

			require_once MODULA_PATH . 'includes/admin/class-modula-dashboard.php';
			// Modula Upload Class.
			require_once MODULA_PATH . 'includes/admin/class-modula-gallery-upload.php';

			require_once MODULA_PATH . 'includes/class-ai-compatibility.php';
		}
	}

	/**
	 * Add Modula Gallery Divi block
	 */
	public function initialize_divi_extension() {
		require_once MODULA_PATH . 'includes/divi-extension/includes/DiviExtension.php';
	}

	public function set_locale() {

		$modula_lang = dirname( MODULA_FILE ) . '/languages/';

		if ( get_user_locale() !== get_locale() ) {
			unload_textdomain( 'modula-best-grid-gallery' );
			$locale = apply_filters( 'plugin_locale', get_user_locale(), 'modula-best-grid-gallery' );

			$lang_ext  = sprintf( '%1$s-%2$s.mo', 'modula-best-grid-gallery', $locale );
			$lang_ext1 = WP_LANG_DIR . "/modula-best-grid-gallery/modula-best-grid-gallery-{$locale}.mo";
			$lang_ext2 = WP_LANG_DIR . "/plugins/modula-best-grid-gallery/{$lang_ext}";

			if ( file_exists( $lang_ext1 ) ) {
				load_textdomain( 'modula-best-grid-gallery', $lang_ext1 );
			} elseif ( file_exists( $lang_ext2 ) ) {
				load_textdomain( 'modula-best-grid-gallery', $lang_ext2 );
			} else {
				load_plugin_textdomain( 'modula-best-grid-gallery', false, $modula_lang );
			}
		} else {
			load_plugin_textdomain( 'modula-best-grid-gallery', false, $modula_lang );
		}
	}

	private function define_admin_hooks() {

		add_action( 'admin_enqueue_scripts', array( $this, 'admin_scripts' ), 20 );
		add_action( 'admin_enqueue_scripts', array( $this, 'settings_page_scripts' ) );
		add_action( 'admin_init', array( $this, 'admin_start' ), 20 );
		add_action( 'admin_menu', array( $this, 'dashboard_start' ), 20 );

		add_action( 'init', array( $this, 'set_locale' ) );

		// SiteOrigin Widget
		add_action( 'widgets_init', array( $this, 'modula_load_widget' ) );

		// Classic editor button for Modula Gallery
		add_filter( 'mce_buttons', array( $this, 'editor_button' ) );
		add_filter( 'mce_external_plugins', array( $this, 'register_editor_plugin' ) );
		add_action( 'wp_ajax_modula_shortcode_editor', array( $this, 'modula_shortcode_editor' ) );

		// Allow other mime types to be uploaded
		add_filter( 'upload_mimes', array( $this, 'modula_upload_mime_types' ) );
		add_filter( 'file_is_displayable_image', array( $this, 'modula_webp_display' ), 10, 2 );

		// Initiate modula cpts
		new Modula_CPT();

		// Initiate WPChill Notifications
		WPChill_Notifications::get_instance();

		new Modula\Gallery_Listing_Output();
	}

	public function start_ai_hooks() {
		new Modula\Ai\Client();
	}

	public function dashboard_start( ) {

		$links = array(
			'partners'      => 'https://wp-modula.com/parteners.json',
			'documentation' => 'https://wp-modula.com/kb/',
			'pricing'       => 'https://wp-modula.com/pricing/?utm_source=modula-lite&utm_medium=dashboard-page&utm_campaign=upsell',
			'extensions'    => admin_url( 'edit.php?post_type=modula-gallery&page=modula-addons' ),
			'lite_vs_pro'   => 'https://wp-modula.com/free-vs-pro/?utm_source=modula-lite&utm_medium=link&utm_campaign=upsell&utm_term=lite-vs-pro',
			'support'       => 'https://wordpress.org/support/plugin/modula-best-grid-gallery/',
			'fbcommunity'   => 'https://www.facebook.com/groups/wpmodula/',
			'changelog'     => 'https://wp-modula.com/changelog/?utm_source=modula-lite&utm_medium=link&utm_campaign=settings&utm_term=changelog',

		);

		new Modula_Dashboard(
			MODULA_FILE,
			'modula-gallery',
			MODULA_URL . 'assets/images/dashboard/',
			$links,
			'modula_page_header'
		);
	}

	public function admin_start() {

		if ( defined( 'DOING_CRON' ) && DOING_CRON ) {
			return;
		}

		new Modula_Upsells();

		$upgrades = Modula_Upgrades::get_instance();
		$upgrades->initialize_admin();
	}

	private function define_public_hooks() {
		new Modula_Image_Sitemaps();
	}

	/* Enqueue Admin Scripts */
	public function admin_scripts( $hook ) {

		global $id, $post;

		// Get current screen.
		$screen = get_current_screen();

		// Set the post_id
		$post_id = isset( $post->ID ) ? $post->ID : (int) $id;

		$suffix = ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) ? '' : '.min';

		$modula_helper = array(
			'items'    => array(),
			'settings' => array(),
			'strings'  => array(
				'limitExceeded' => '',
			),
			'id'       => $post_id,
			'_wpnonce' => wp_create_nonce( 'modula-ajax-save' ),
			'ajax_url' => admin_url( 'admin-ajax.php' ),
		);

		if ( 'post-new.php' === $hook || 'post.php' === $hook ) {

			// Check if is modula custom post type
			if ( 'modula-gallery' !== $screen->post_type ) {
				return;
			}

			if ( apply_filters( 'modula_disable_drag_cpt_box', true ) ) {

				//returns modula CPT metaboxes to the default position.
				add_filter( 'get_user_option_meta-box-order_modula-gallery', array( $this, 'metabox_prevent_sorting' ) );
				add_filter( 'get_user_option_closedpostboxes_modula-gallery', array( $this, 'metabox_prevent_closing' ) );
				add_filter( 'admin_body_class', array( $this, 'no_drag_classes' ), 15, 1 );
			}

			/*
			CPT Styles & Scripts */
			// Media Scripts
			wp_enqueue_media(
				array(
					'post' => $post_id,
				)
			);

			// Get all items from current gallery.
			$images = get_post_meta( $post_id, 'modula-images', true );

			if ( is_array( $images ) && ! empty( $images ) ) {
				foreach ( $images as $image ) {
					if ( ! is_numeric( $image['id'] ) || 'attachment' !== get_post_type( $image['id'] ) ) {
						continue;
					}

					$attachment = wp_prepare_attachment_for_js( $image['id'] );
					$image_url  = wp_get_attachment_image_src( $image['id'], 'large' );
					$image_full = wp_get_attachment_image_src( $image['id'], 'full' );

					$image['full']            = $image_full[0];
					$image['thumbnail']       = $image_url[0];
					$image['orientation']     = ( isset( $attachment['orientation'] ) ) ? $attachment['orientation'] : '';
					$image['alt']             = get_post_meta( $image['id'], '_wp_attachment_image_alt', true );
					$image['title']           = get_the_title( $image['id'] );
					$image['caption']         = get_post_field( 'post_excerpt', $image['id'] );
					$image['description']     = get_post_field( 'post_excerpt', $image['id'] );
					$image['report']          = get_post_meta( $image['id'], Optimizer::REPORT, true );
					$modula_helper['items'][] = apply_filters( 'modula_image_properties', $image );
				}
			}

			// Get current gallery settings.
			$settings = get_post_meta( $post_id, 'modula-settings', true );
			$settings = apply_filters( 'modula_backbone_settings', $settings );

			if ( is_array( $settings ) ) {
				$modula_helper['settings'] = wp_parse_args( $settings, Modula_CPT_Fields_Helper::get_defaults() );
			} else {
				$modula_helper['settings'] = Modula_CPT_Fields_Helper::get_defaults();
			}

			wp_enqueue_style( 'wp-color-picker' );
			// Enqueue Code Editor for Custom CSS
			wp_enqueue_code_editor( array( 'type' => 'text/css' ) );
			wp_enqueue_style( 'modula-jquery-ui', MODULA_URL . 'assets/css/admin/jquery-ui' . $suffix . '.css', null, MODULA_LITE_VERSION );
			wp_enqueue_style( 'modula-cpt-style', MODULA_URL . 'assets/css/admin/modula-cpt' . $suffix . '.css', null, MODULA_LITE_VERSION );
			wp_enqueue_style( 'modula-pro-effects', MODULA_URL . 'assets/css/admin/effects' . $suffix . '.css', null, MODULA_LITE_VERSION );
			wp_enqueue_script( 'modula-resize-senzor', MODULA_URL . 'assets/js/admin/resizesensor' . $suffix . '.js', array( 'jquery' ), MODULA_LITE_VERSION, true );
			wp_enqueue_script(
				'modula-packery',
				MODULA_URL . 'assets/js/admin/packery' . $suffix . '.js',
				array(
					'jquery',
					'jquery-ui-core',
					'jquery-ui-widget',
					'jquery-ui-droppable',
					'jquery-ui-resizable',
					'jquery-ui-draggable',
				),
				MODULA_LITE_VERSION,
				true
			);
			wp_enqueue_script(
				'modula-settings',
				MODULA_URL . 'assets/js/admin/wp-modula-settings' . $suffix . '.js',
				array(
					'jquery',
					'jquery-ui-slider',
					'wp-color-picker',
					'jquery-ui-sortable',
				),
				MODULA_LITE_VERSION,
				true
			);
			wp_enqueue_script( 'modula-pro-tilt', MODULA_URL . 'assets/js/admin/modula-pro-tilt' . $suffix . '.js', array( 'jquery' ), MODULA_LITE_VERSION, true );

			wp_enqueue_script( 'modula-save', MODULA_URL . 'assets/js/admin/wp-modula-save' . $suffix . '.js', array(), MODULA_LITE_VERSION, true );
			wp_enqueue_script( 'modula-items', MODULA_URL . 'assets/js/admin/wp-modula-items' . $suffix . '.js', array(), MODULA_LITE_VERSION, true );
			wp_enqueue_script( 'modula-modal', MODULA_URL . 'assets/js/admin/wp-modula-modal' . $suffix . '.js', array(), MODULA_LITE_VERSION, true );
			wp_enqueue_script( 'modula-upload', MODULA_URL . 'assets/js/admin/wp-modula-upload' . $suffix . '.js', array(), MODULA_LITE_VERSION, true );
			wp_enqueue_script( 'modula-gallery', MODULA_URL . 'assets/js/admin/wp-modula-gallery' . $suffix . '.js', array(), MODULA_LITE_VERSION, true );
			wp_enqueue_script( 'modula-conditions', MODULA_URL . 'assets/js/admin/wp-modula-conditions' . $suffix . '.js', array(), MODULA_LITE_VERSION, true );

			do_action( 'modula_scripts_before_wp_modula' );

			wp_enqueue_script( 'modula', MODULA_URL . 'assets/js/admin/wp-modula' . $suffix . '.js', array(), MODULA_LITE_VERSION, true );
			$modula_helper = apply_filters( 'modula_helper_properties', $modula_helper );
			wp_localize_script( 'modula', 'modulaHelper', $modula_helper );

			do_action( 'modula_scripts_after_wp_modula' );
		} elseif ( 'modula-gallery_page_modula' === $hook ) {
			// Check if is modula custom post type
			if ( 'modula-gallery' !== $screen->post_type ) {
				return;
			}

			wp_enqueue_style( 'modula-welcome-style', MODULA_URL . 'assets/css/admin/welcome' . $suffix . '.css', null, MODULA_LITE_VERSION );
		} elseif ( 'modula-gallery_page_modula-addons' === $hook ) {
			// Check if is modula custom post type
			if ( 'modula-gallery' !== $screen->post_type ) {
				return;
			}

			wp_enqueue_style( 'modula-notices-style', MODULA_URL . 'assets/css/admin/modula-notices' . $suffix . '.css', null, MODULA_LITE_VERSION );
			wp_enqueue_style( 'modula-welcome-style', MODULA_URL . 'assets/css/admin/addons' . $suffix . '.css', null, MODULA_LITE_VERSION );
			wp_enqueue_script(
				'modula-addon',
				MODULA_URL . 'assets/js/admin/modula-addon' . $suffix . '.js',
				array(
					'jquery',
					'updates',
				),
				MODULA_LITE_VERSION,
				true
			);

			wp_localize_script(
				'modula-addon',
				'modulaAddons',
				array(
					// Add addon slug to verify addon's slug in wp-plugin-install-success action
					'free_addons'       => apply_filters( 'modula_free_extensions_install', array() ),
					'installing_text'   => esc_html__( 'Installing addon...', 'modula-best-grid-gallery' ),
					'activated_text'    => esc_html__( 'Addon activated!', 'modula-best-grid-gallery' ),
					'deactivated_text'  => esc_html__( 'Addon deactivated!', 'modula-best-grid-gallery' ),
					'activating_text'   => esc_html__( 'Activating addon...', 'modula-best-grid-gallery' ),
					'deactivating_text' => esc_html__( 'Deactivating addon...', 'modula-best-grid-gallery' ),
				)
			);
		} else {
			wp_enqueue_style( 'modula-header-style', MODULA_URL . 'assets/css/admin/modula-header' . $suffix . '.css', null, MODULA_LITE_VERSION );
			wp_enqueue_style( 'modula-notices-style', MODULA_URL . 'assets/css/admin/modula-notices' . $suffix . '.css', null, MODULA_LITE_VERSION );
		}

		wp_enqueue_script( 'modula-edit-screen', MODULA_URL . 'assets/js/admin/modula-edit' . $suffix . '.js', array(), MODULA_LITE_VERSION, true );
		wp_localize_script( 'modula-edit-screen', 'modulaHelper', $modula_helper );
		wp_enqueue_style( 'modula-notices-style', MODULA_URL . 'assets/css/admin/modula-notices' . $suffix . '.css', null, MODULA_LITE_VERSION );
		wp_enqueue_style( 'modula-edit-style', MODULA_URL . 'assets/css/admin/edit' . $suffix . '.css', null, MODULA_LITE_VERSION );
	}

	public function modula_enqueue_media() {

		if ( ! is_admin() || ! function_exists( 'get_current_screen' ) ) {
			return;
		}

		// Get the current screen object.
		$screen = get_current_screen();

		// Check if we are on the media upload page.
		if ( ! isset( $screen->base ) || ( 'upload' !== $screen->base && 'media_page_upload' !== $screen->base ) ) {
			return;
		}

		$args = array(
			'post_type'      => 'modula-gallery',
			'posts_per_page' => -1,
			'post_status'    => array( 'publish', 'draft' ),
			'orderby'        => 'ID',
			'order'          => 'DESC',
		);

		$posts = get_posts( $args );

		$data = array(
			'posts'    => array(),
			'l10n'     => array(
				'add_to_gallery' => 'Add to Modula Gallery',
				'ajax_failed'    => 'Failed to add images to gallery: ',
			),
			'nonce'    => wp_create_nonce( 'modula-ajax-save' ),
			'ajax_url' => admin_url( 'admin-ajax.php' ),
		);

		if ( $posts ) {
			foreach ( $posts as $post ) {
				$data['posts'][] = array(
					'id'    => $post->ID,
					'title' => '[ #' . $post->ID . ' ] - ' . ( isset( $post->post_title ) && '' !== $post->post_title ? $post->post_title : __( 'Gallery Without Name', 'modula-best-grid-gallery' ) ),
				);
			}
		}

		wp_enqueue_script( 'modula-media-screen', MODULA_URL . 'assets/js/admin/modula-media.js', array( 'media-views', 'media-editor' ), MODULA_LITE_VERSION, true );

		wp_localize_script( 'modula-media-screen', 'modulaGalleries', $data );
	}

	/**
	 * Filters the maximum image width to be included in a 'srcset' attribute.
	 *
	 * @return int
	 *
	 */
	public function disable_wp_responsive_images() {
		return 1;
	}

	/**
	 * Disables the srcset when lazy loading is enabled.
	 *
	 * @return_flag bool
	 * @since 2.7.5
	 */
	public function disable_lazy_srcset( $return_flag, $image ) {

		if ( preg_match( '/data-source="modula"/i', $image ) ) {
			return false;
		}

		return $return_flag;
	}

	/**
	 * Prevents WP from adding srcsets to modula gallery images if srcsets are disabled.
	 *
	 * @param $settings
	 *
	 * @return void
	 *
	 */
	public function disable_wp_srcset( $settings ) {
		$troubleshoot_opt = get_option( 'modula_troubleshooting_option', array() );
		$disable_srcset   = isset( $troubleshoot_opt['disable_srcset'] ) ? boolval( $troubleshoot_opt['disable_srcset'] ) : false;

		if ( true === apply_filters( 'modula_troubleshooting_disable_srcset', $disable_srcset ) ) {
			add_filter( 'max_srcset_image_width', array( $this, 'disable_wp_responsive_images' ), 999 );
		}

		if ( isset( $settings['lazy_load'] ) && '1' === $settings['lazy_load'] ) {
			add_filter( 'wp_img_tag_add_srcset_and_sizes_attr', array( $this, 'disable_lazy_srcset' ), 999, 4 );
		}
	}

	/**
	 * Allows WP to add srcsets to other content after the gallery was created.
	 *
	 * @return void
	 *
	 */
	public function enable_wp_srcset() {
		remove_filter( 'max_srcset_image_width', array( $this, 'disable_wp_responsive_images' ), 999 );
	}

	// Register and load the widget
	public function modula_load_widget() {
		register_widget( 'Modula_Widget' );
	}

	/**
	 * @param $buttons
	 *
	 * @return mixed
	 *
	 * Add tinymce button
	 */
	public function editor_button( $buttons ) {
		array_push( $buttons, 'separator', 'modula_shortcode_editor' );

		return $buttons;
	}

	/**
	 * @param $plugin_array
	 *
	 * @return mixed
	 *
	 * Add plugin editor script
	 */
	public function register_editor_plugin( $plugin_array ) {
		$plugin_array['modula_shortcode_editor'] = MODULA_URL . 'assets/js/admin/editor-plugin.js';

		return $plugin_array;
	}

	/**
	 * Display galleries selection
	 */
	public function modula_shortcode_editor() {
		$css_path  = MODULA_URL . 'assets/css/admin/edit.css';
		$admin_url = admin_url();
		$galleries = Modula_Helper::get_galleries();
		include 'admin/tinymce-galleries.php';
		wp_die();
	}

	/**
	 * @param $mimes
	 *
	 * @return mixed
	 *
	 * @since 2.2.4
	 * Allow WebP image type to be uploaded
	 */
	public function modula_upload_mime_types( $mimes ) {

		$mimes['webp'] = 'image/webp';

		return $mimes;
	}

	/**
	 * @param $result
	 * @param $path
	 *
	 * @return bool
	 *
	 * @since 2.2.4
	 * Enable thumbnail/preview for WebP image types.
	 */
	public function modula_webp_display( $result, $path ) {
		if ( $result === false && IMAGETYPE_WEBP ) {
			$displayable_image_types = array( IMAGETYPE_WEBP );
			$info                    = @getimagesize( $path );

			if ( empty( $info ) ) {
				$result = false;
			} elseif ( ! in_array( $info[2], $displayable_image_types, true ) ) {
				$result = false;
			} else {
				$result = true;
			}
		}

		return $result;
	}

	/**
	 * Add the `modula-no-drag` class to body so we know when to hide the arrows
	 *
	 * @param String $classes The classes of the body, a space-separated string of class names instead of an array
	 *
	 * @return String
	 *
	 * @since 2.6.3
	 */
	public function no_drag_classes( $classes ) {

		$classes .= ' modula-no-drag';

		return $classes;
	}

	/**
	 * Adds the filters and actions to add modula offers display by month
	 *
	 * @since 2.7.9
	 */
	private function set_offer() {
		$timezone_string = get_option( 'timezone_string' );
		$timezone        = $timezone_string ? new DateTimeZone( $timezone_string ) : new DateTimeZone( 'UTC' );

		$now = new DateTime( 'now', $timezone );

		$bf_start = new DateTime( '2025-11-03 00:00:00', $timezone );
		$bf_end   = new DateTime( '2025-12-03 10:00:00', $timezone );

		$cym_start = new DateTime( '2024-12-09 10:01:00', $timezone );
		$cym_end   = new DateTime( '2024-12-13 16:00:00', $timezone );

		if ( $now >= $bf_start && $now <= $bf_end ) {
			add_filter( 'modula_upsell_buttons', array( $this, 'bf_buttons' ), 15, 2 );
			add_action( 'admin_print_styles', array( $this, 'footer_bf_styles' ), 999 );
		}

		if ( $now >= $cym_start && $now <= $cym_end ) {
			add_filter( 'modula_upsell_buttons', array( $this, 'cyber_m_buttons' ), 15, 2 );
			add_action( 'admin_print_styles', array( $this, 'footer_cyber_m_styles' ), 999 );
		}
	}

	/**
	 * Replaces upsells button with Black Friday text buttons
	 *
	 * @since 2.7.9
	 */
	public function bf_buttons( $buttons ) {
		preg_match_all( '~<a(.*?)href="([^"]+)"(.*?)>~', $buttons, $matches );

		$buttons  = '<a target="_blank" href="' . esc_url( $matches[2][0] ) . '" class="button">' . esc_html__( 'Free vs Premium', 'modula-best-grid-gallery' ) . '</a>';
		$buttons .= '<a target="_blank" href="' . esc_url( $matches[2][1] ) . '" style="margin-top:10px;" class="wpchill-bf-upsell button">' . esc_html__( '65% OFF for Black Friday', 'modula-best-grid-gallery' ) . '</a>';
		return $buttons;
	}

	/**
	 * Replaces upsells button with Christmas text buttons
	 *
	 * @since 2.7.9
	 */
	public function xmas_buttons( $buttons ) {
		preg_match_all( '~<a(.*?)href="([^"]+)"(.*?)>~', $buttons, $matches );

		$buttons  = '<a target="_blank" href="' . esc_url( $matches[2][0] ) . '" class="button">' . esc_html__( 'Free vs Premium', 'modula-best-grid-gallery' ) . '</a>';
		$buttons .= '<a target="_blank" href="' . esc_url( $matches[2][1] ) . '" style="margin-top:10px;" class="wpchill-xmas-upsell button">' . esc_html__( '25% OFF for Christmas', 'modula-best-grid-gallery' ) . '</a>';
		return $buttons;
	}

	/**
	 * Replaces upsells button with Cyber Monday text buttons
	 *
	 * @since 2.11.6
	 */
	public function cyber_m_buttons( $buttons ) {
		preg_match_all( '~<a(.*?)href="([^"]+)"(.*?)>~', $buttons, $matches );

		$buttons  = '<a target="_blank" href="' . esc_url( $matches[2][0] ) . '" class="button">' . esc_html__( 'Free vs Premium', 'modula-best-grid-gallery' ) . '</a>';
		$buttons .= '<a target="_blank" href="' . esc_url( $matches[2][1] ) . '" style="margin-top:10px;" class="wpchill-cyber-m-upsell button">' . esc_html__( '25% OFF for Cyber Monday', 'modula-best-grid-gallery' ) . '</a>';
		return $buttons;
	}

	/**
	 * Echoes Black Friday script to footer
	 *
	 * @since 2.7.9
	 */
	public function footer_bf_styles() {

		$css = '<style>
		.modula-upsell,
		#poststuff .modula-upsell h2,
		.modula-modal__overlay .modula-modal__frame,
		.modula-settings-tab-upsell {
			color: #fff;
			background-color: #000;
		}
		.modula-upsell p,
		.modula-upsell p.modula-upsell-description,
		.modula-modal__overlay .modula-modal__frame h2,
		.modula-settings-tab-upsell h3,
		.modula-settings-tab-upsell p {
			color: #fff;
		}
		.wpchill-bf-upsell.button {
			background-color: #f8003e;
			border: none;
			color: #fff;
			font-weight: 600;
		}
		.wpchill-bf-upsell.button:hover {
			background-color: red;
			border: none;
			color: #fff;
			font-weight: 600;
		}
		.modula-tooltip .modula-tooltip-content{
			background-color: #fff;
			color: #000;
		}
		.modula-settings-tab-upsell{
			margin-top: 10px;
		}
		</style>';
		echo $css;
	}

	/**
	 * Echoes Cyber Monday script to footer
	 *
	 * @since 2.11.6
	 */
	public function footer_cyber_m_styles() {

		$css = '<style>
		.modula-upsell,
		#poststuff .modula-upsell h2,
		.modula-modal__overlay .modula-modal__frame,
		.modula-settings-tab-upsell {
			color: #fff;
			background-color: #000;
		}
		.modula-upsell p,
		.modula-upsell p.modula-upsell-description,
		.modula-modal__overlay .modula-modal__frame h2,
		.modula-settings-tab-upsell h3,
		.modula-settings-tab-upsell p {
			color: #fff;
		}
		.wpchill-cyber-m-upsell.button {
			background-color: #2271b1;
			border: none;
			color: #fff;
			font-weight: 600;
		}
		.wpchill-cyber-m-upsell.button:hover {
			background-color: red;
			border: none;
			color: #fff;
			font-weight: 600;
		}
		.modula-tooltip .modula-tooltip-content{
			background-color: #fff;
			color: #000;
		}
		.modula-settings-tab-upsell{
			margin-top: 10px;
		}
		</style>';
		echo $css;
	}

	/**
	 * Echoes Christmas style to footer
	 *
	 * @since 2.7.9
	 */
	public function footer_xmas_styles() {

		$css = '<style>
		.modula-upsell::before,
		.modula-settings-tab-upsell::before,
		.modula-modal__overlay .modula-modal__frame::before{
			content: "";
			position: absolute;
			width: 100%;
			height: 50px;
			background-image: url(' . MODULA_URL . 'assets/images/upsells/x-mas.jpg' . ');
			background-position-x: 15px;
			left: 0;
			top: 0;
			background-size: contain;
			z-index: 0;
		}

		.wpchill-xmas-upsell.button {
			background-color: #f8003e;
			border: none;
			color: #fff;
			font-weight: 600;
		}
		.wpchill-xmas-upsell.button:hover {
			background-color: red;
			border: none;
			color: #fff;
			font-weight: 600;
		}
		.modula-settings-tab-upsell,
		.modula-upsell{
			position: relative;
			padding-top: 50px;
		}
		.modula-settings-tab-upsell{
			margin-top: 10px;
		}
		.modula-upsell{
			background-color: #fff;
		}
		#modula-settings .modula-upsell{
			padding-top: 70px;
		}

		</style>';
		echo $css;
	}

	public function after_modula_update() {

		$option = get_option( 'wpmodulaupdate', false );

		if ( $option ) {
			return;
		}

		if ( defined( 'MODULA_PRO_PATH' ) ) {
			if ( ! class_exists( 'Wpchill_License_Checker' ) ) {
				require_once MODULA_PRO_PATH . 'includes/license-checker/class-wpchill-license-checker.php';
			}

			$args = array(
				'plugin_slug'     => 'modula-best-grid-gallery',
				'plugin_nicename' => 'Modula',
				'store_url'       => MODULA_PRO_STORE_URL,
				'item_id'         => MODULA_PRO_STORE_ITEM_ID,
				'license'         => 'modula_pro_license_key',
				'license_status'  => 'modula_pro_license_status',
				'plugin_file'     => MODULA_PRO_FILE,
			);

			$wpchill_license_checker = Wpchill_License_Checker::get_instance( 'modula', $args );
			$wpchill_license_checker->check_license_valability();
		}

		update_option( 'wpmodulaupdate', true );
	}

	public function settings_page_scripts() {
		$screen = get_current_screen();

		if ( 'modula-gallery' !== $screen->post_type ) {
			return;
		}

		if ( 'modula-gallery_page_modula' !== $screen->base ) {
			return;
		}

		$scripts = Modula\Scripts::get_instance();

		$scripts->load_js_asset(
			'modula-settings',
			'assets/js/admin/settings',
		);

		$scripts->load_css_asset(
			'modula-settings',
			'assets/js/admin/settings',
			array( 'wp-components' )
		);
	}

	/**
	 * Check if we are on the Modula admin page
	 *
	 * @return bool
	 *
	 * @since 2.11.0
	 */
	public function is_modula_admin_page() {
		$screen = get_current_screen();

		if ( false !== strpos( $screen->id, 'modula-gallery' ) || false !== strpos( $screen->id, 'modula-albums' ) ) {
			return true;
		}

		return false;
	}

	/**
	 * Prevent reorder of normal metaboxes
	 *
	 * @return bool
	 *
	 * @since 2.11.2
	 */
	public function metabox_prevent_sorting( $order ) {
		if ( ! is_array( $order ) ) {
			$order = array();
		}

		$order['normal'] = 'modula-albums-upsell,modula-preview-gallery,modula-settings,slugdiv';
		return $order;
	}

	/**
	 * Prevent closing of normal metaboxes
	 *
	 * @return bool
	 *
	 * @since 2.11.2
	 */
	public function metabox_prevent_closing( $closed ) {
		if ( ! is_array( $closed ) ) {
			$closed = array();
		}
		$should_be_open = array( 'modula-albums-upsell', 'modula-settings' );

		return array_filter(
			$closed,
			function ( $val ) use ( $should_be_open ) {
				return ! in_array( $val, $should_be_open, true );
			}
		);
	}

	/**
	 * Check for compatibility issues
	 *
	 * @since 2.11.0
	 */
	public function compatibility_check() {
		if ( ! is_admin() || ! class_exists( 'Modula\Ai_Compatibility' ) ) {
			return;
		}

		new Modula\Ai_Compatibility();
	}
}
