<?php declare(strict_types=1);

namespace TotalTheme;

\defined( 'ABSPATH' ) || exit;

/**
 * Initialize Theme.
 */
class Initialize {

	/**
	 * Class instance.
	 */
	protected static $instance;

	/**
	 * Create or retrieve the class instance.
	 *
	 * @return object $instance Class instance of TotalTheme\Initialize.
	 */
	public static function instance() {
		if ( \is_null( self::$instance ) ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	/**
	 * Constructor.
	 *
	 * @return void
	 */
	public function __construct() {
		$this->global();

		if ( \wpex_is_request( 'admin' ) ) {
			$this->admin();
		}

		$this->public();

		if ( \wpex_is_request( 'frontend' ) ) {
			$this->frontend();
		}

		$this->init_hooks();
	}

	/**
	 * Global functions.
	 */
	public function global(): void {
		require_once \WPEX_INC_DIR . 'deprecated.php';

		Color_Scheme::instance();
		Widgets\Register_Widget_Areas::instance();

		// Core functions.
		require_once \WPEX_INC_DIR . 'updates/after-update.php';
		require_once \WPEX_INC_DIR . 'functions/theme-mods.php';
		require_once \WPEX_INC_DIR . 'functions/core-functions.php';
		require_once \WPEX_INC_DIR . 'functions/conditionals.php';
		require_once \WPEX_INC_DIR . 'functions/svgs.php';
		require_once \WPEX_INC_DIR . 'functions/css-utility.php';
		require_once \WPEX_INC_DIR . 'functions/parsers.php';
		require_once \WPEX_INC_DIR . 'functions/sanitization-functions.php';
		require_once \WPEX_INC_DIR . 'functions/arrays.php';
		require_once \WPEX_INC_DIR . 'functions/translations.php';
		require_once \WPEX_INC_DIR . 'functions/template-parts.php';
		require_once \WPEX_INC_DIR . 'functions/post-types-branding.php';
		require_once \WPEX_INC_DIR . 'functions/fonts.php';
		require_once \WPEX_INC_DIR . 'functions/post-thumbnails.php';
		require_once \WPEX_INC_DIR . 'functions/overlays.php';
		require_once \WPEX_INC_DIR . 'functions/aria-labels.php';
		require_once \WPEX_INC_DIR . 'cards/card-functions.php';

		// Actions.
		new Register_AJAX_Callbacks();
		\add_action( 'after_switch_theme', 'TotalTheme\Actions\After_Switch_Theme::callback' );

		// Filters.
		\add_filter( 'http_request_args', 'TotalTheme\Filters\Http_Request_Args::callback', 5, 2 );
		\add_filter( 'kses_allowed_protocols', 'TotalTheme\Filters\Kses_Allowed_Protocols::callback' );
		\add_filter( 'wp_get_attachment_url', 'TotalTheme\Filters\WP_Get_Attachment_Url::callback' );

		// Theme builder.
		require_once \WPEX_INC_DIR . 'theme-builder/functions.php'; // !! must load here !!
		require_once \WPEX_INC_DIR . 'theme-builder/theme-builder.php';

		/** Maybe include */

		if ( \get_theme_mod( 'header_builder_enable', true ) ) {
			require_once \WPEX_INC_DIR . 'theme-builder/header-builder.php';
		}

		if ( \get_theme_mod( 'footer_builder_enable', true ) ) {
			require_once \WPEX_INC_DIR . 'theme-builder/footer-builder.php';
		}

		Error_404::instance();

		if ( \get_theme_mod( 'page_animations_enable', true ) ) {
			Page_Animations::instance();
		}

		if ( \get_theme_mod( 'header_image_enable', false ) ) {
			WP_Custom_Header::instance();
		}

		if ( wpex_custom_wp_gallery_supported() ) {
			Post_Gallery::instance();
		}

		if ( \get_theme_mod( 'under_construction_enable', true ) ) {
			Under_Construction::instance();
		}

		if ( \wpex_disable_google_services() ) {
			Disable_Google_Services::instance();
		}

		Widgets\Block_Editor::instance();

		if ( \get_theme_mod( 'favicons_enable', true ) ) {
			Favicons::instance();
		}

		if ( \get_theme_mod( 'custom_admin_login_enable', true ) ) {
			Custom_Login::instance();
		}

		if ( \get_theme_mod( 'custom_actions_enable', true ) ) {
			Custom_Actions::instance();
		}

		if ( \get_theme_mod( 'remove_posttype_slugs', false ) ) {
			new Remove_Cpt_Slugs;
		}

		if ( \apply_filters( 'wpex_has_bundled_plugin_update_notices', true ) ) {
			Updates\Plugin_Updater::instance();
		}

		if ( \get_theme_mod( 'auto_updates', true ) ) {
			Updates\Theme_Updater::instance();
		}

		// Remove site emoji scripts.
		if ( \get_theme_mod( 'remove_emoji_scripts_enable', true ) ) {
			new Disable_WP_Emoji();
		}

		/** 3rd Party Integrations **/
		Integrations::init();


		/* These Classes must Load last */

		// Image sizes panel and registration.
		if ( \get_theme_mod( 'image_sizes_enable', true ) ) {
			Image_Sizes::instance();
		}

		Customizer::instance();

		if ( \get_theme_mod( 'typography_enable', true ) ) {
			Typography::instance();
		}
	}

	/**
	 * Admin functions.
	 */
	public function admin(): void {
		if ( ! \is_admin() ) {
			return;
		}

		$this->health_checks();

		Admin\Theme_Panel::instance();
		Editor\Mce_Formats::instance();

		if ( \get_theme_mod( 'recommend_plugins_enable', true ) ) {
			Admin\Recommended_Plugins::init();
		}

		if ( \get_theme_mod( 'post_type_admin_settings', true ) ) {
			Admin\Cpt_Settings::instance();
		}

		if ( \get_theme_mod( 'import_export_enable', true ) ) {
			Admin\Import_Export::instance();
		}

		if ( \apply_filters( 'wpex_show_license_panel', true ) ) {
			Admin\License_Panel::instance();
		}

		if ( \apply_filters( 'wpex_accessibility_panel', true ) ) {
			Accessibility\Admin_Panel::instance();
		}

		if ( \get_theme_mod( 'editor_styles_enable', true ) ) {
			Editor\Editor_Styles::instance();
		}

		Admin\Dashboard_Thumbnails::instance();
		Admin\Scripts::instance();
	}

	/**
	 * Public functions.
	 *
	 * @todo move these into classes that are loaded automatically.
	 */
	public function public(): void {
		require_once \WPEX_INC_DIR . 'functions/frontend/google-analytics.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/layouts.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/breadcrumbs.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/wpex-the-content.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/head-meta-tags.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/schema-markup.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/social-share.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/videos.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/audio.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/author.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/post-media.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/excerpts.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/togglebar.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/header-menu.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/post-slider.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/post-gallery.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/page-header.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/grids.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/page.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/archives.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/loop.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/blog.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/portfolio.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/staff.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/testimonials.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/cpt.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/search.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/star-rating.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/user-social-links.php';
		require_once \WPEX_INC_DIR . 'functions/frontend/post-format-icons.php';
	}

	/**
	 * Frontend functionality.
	 */
	public function frontend(): void {
		if ( \get_theme_mod( 'bypostauthor_highlight' ) ) {
			new Comments\Author_Badge;
		}

		if ( \get_theme_mod( 'thumbnail_format_icons', false ) ) {
			new Thumbnail_Format_Icons;
		}

		Fonts\Global_Fonts::instance();
		Site_Backgrounds::init();
		Advanced_Styles::instance();
		Inline_CSS::instance();

		// Scripts.
		\add_action( 'wp_enqueue_scripts', 'TotalTheme\Actions\WP_Enqueue_Scripts::callback' );
		\add_action( 'template_redirect', 'TotalTheme\Redirections::maybe_redirect' );
		\add_action( 'pre_get_posts', 'TotalTheme\Filters\Pre_Get_Posts::callback' );

		// Filters.
		\add_filter( 'body_class', 'TotalTheme\Filters\Body_Class::callback' );
		\add_filter( 'post_class', 'TotalTheme\Filters\Post_Class::callback', 10, 3 );
		\add_filter( 'term_link', 'TotalTheme\Filters\Term_Link::callback', 10, 3 );
		\add_filter( 'widget_tag_cloud_args', 'TotalTheme\Filters\Tag_Cloud_Args::callback' );
		\add_filter( 'comment_form_fields', 'TotalTheme\Filters\Comment_Form_Fields::callback' );
		\add_filter( 'redirect_canonical', 'TotalTheme\Filters\Redirect_Canonical::callback' );
		\add_filter( 'the_author_posts_link', 'TotalTheme\Filters\The_Authors_Post_Link::callback' );
		\add_filter( 'the_password_form', 'TotalTheme\Filters\The_Password_Form::callback' );
		\add_filter( 'widget_nav_menu_args', 'TotalTheme\Filters\Widget_Nav_Menu_Args::callback', 10, 4 );
		\add_filter( 'embed_oembed_html', 'TotalTheme\Filters\Embed_Oembed_Html::callback', 100, 4 );
		\add_filter( 'get_comments_link', 'TotalTheme\Filters\Get_Comments_Link::callback', 10, 2 );
		\add_filter( 'respond_link', 'TotalTheme\Filters\Respond_Link::callback', 10, 2 );
		\add_filter( 'get_previous_post_join', 'TotalTheme\Filters\Get_Next_Prev_Post_Join::callback' );
		\add_filter( 'get_next_post_join', 'TotalTheme\Filters\Get_Next_Prev_Post_Join::callback' );
		\add_filter( 'get_previous_post_where', 'TotalTheme\Filters\Get_Next_Prev_Post_Where::callback' );
		\add_filter( 'get_next_post_where', 'TotalTheme\Filters\Get_Next_Prev_Post_Where::callback' );
		\add_filter( 'dynamic_sidebar_params', 'TotalTheme\Filters\Dynamic_Sidebar_Params::callback' );

		if ( \apply_filters( 'wpex_widget_counter_span', true ) ) {
			\add_filter( 'wp_list_categories', 'TotalTheme\Filters\WP_List_Categories::callback' );
			\add_filter( 'get_archives_link', 'TotalTheme\Filters\Get_Archives_Link::callback' );
		}

		if ( \get_theme_mod( 'remove_menu_ids', false ) && \apply_filters( 'wpex_accessibility_panel', true ) ) {
			add_filter( 'nav_menu_item_id', '__return_false' );
		}
	}

	/**
	 * Hook into actions and filters.
	 */
	public function init_hooks(): void {
		\add_action( 'after_setup_theme', 'TotalTheme\After_Setup_Theme::init' );
		\add_action( 'after_setup_theme', [ $this, 'hooks_actions' ] );
		\add_filter( 'woocommerce_create_pages', [ $this, 'disable_woocommerce_create_pages' ] );
	}

	/**
	 * Runs on the after_setup_theme hook.
	 */
	public function hooks_actions(): void {
		require_once \WPEX_INC_DIR . 'functions/hooks/hooks.php';
		require_once \WPEX_INC_DIR . 'functions/hooks/add-actions.php';
		require_once \WPEX_INC_DIR . 'functions/hooks/remove-actions.php';
		require_once \WPEX_INC_DIR . 'functions/hooks/partials.php';
	}

	/**
	 * Registers health checks.
	 */
	public function health_checks(): void {
		$health_checks = [
			new Health_Check\Header_Menu_Dropdown_SuperFish(),
			new Health_Check\Jquery_Easing(),
		];

		if ( \WPEX_VC_ACTIVE ) {
			$health_checks[] = new Health_Check\WPBakery_Slim_Mode();
		}

		foreach ( $health_checks as $health_check ) {
			$health_check->register_test();
		}
	}

	/**
	 * Prevent Woocommerce from installing pages on installation.
	 *
	 * @return array $pages Array of pages to create when the WooCommerce plugin is installed.
	 */
	public function disable_woocommerce_create_pages( $pages ) {
		if ( \defined( 'WC_INSTALLING' ) && true === \WC_INSTALLING ) {
			return [];
		}
		return $pages;
	}

}