<?php

namespace SeriouslySimplePodcasting\Controllers;

use SeriouslySimplePodcasting\Handlers\Admin_Notifications_Handler;
use SeriouslySimplePodcasting\Handlers\Ajax_Handler;
use SeriouslySimplePodcasting\Handlers\Castos_Handler;
use SeriouslySimplePodcasting\Handlers\CPT_Podcast_Handler;
use SeriouslySimplePodcasting\Handlers\Feed_Handler;
use SeriouslySimplePodcasting\Handlers\Images_Handler;
use SeriouslySimplePodcasting\Handlers\Options_Handler;
use SeriouslySimplePodcasting\Handlers\Podping_Handler;
use SeriouslySimplePodcasting\Handlers\Roles_Handler;
use SeriouslySimplePodcasting\Handlers\Series_Handler;
use SeriouslySimplePodcasting\Handlers\Settings_Handler;
use SeriouslySimplePodcasting\Handlers\Upgrade_Handler;
use SeriouslySimplePodcasting\Helpers\Log_Helper;
use SeriouslySimplePodcasting\Integrations\Blocks\Castos_Blocks;
use SeriouslySimplePodcasting\Integrations\Elementor\Elementor_Widgets;
use SeriouslySimplePodcasting\Integrations\LifterLMS\LifterLMS_Integrator;
use SeriouslySimplePodcasting\Integrations\Memberpress\Memberpress_Integrator;
use SeriouslySimplePodcasting\Integrations\Paid_Memberships_Pro\Paid_Memberships_Pro_Integrator;
use SeriouslySimplePodcasting\Integrations\Woocommerce\WC_Memberships_Integrator;
use SeriouslySimplePodcasting\Interfaces\Service;
use SeriouslySimplePodcasting\Renderers\Renderer;
use SeriouslySimplePodcasting\Renderers\Settings_Renderer;
use SeriouslySimplePodcasting\Repositories\Episode_Repository;
use SeriouslySimplePodcasting\Rest\Rest_Api_Controller;
use SeriouslySimplePodcasting\Traits\Useful_Variables;


// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Main plugin class
 *
 * @author      Hugh Lashbrooke, Serhiy Zakharchenko
 * @category    Class
 * @package     SeriouslySimplePodcasting/Controllers
 * @since       1.0
 */
class App_Controller {

	use Useful_Variables;

	// Controllers.
	/**
	 * @var Assets_Controller $assets_controller
	 * */
	public $assets_controller;

	/**
	 * @var Onboarding_Controller
	 */
	protected $onboarding_controller;

	/**
	 * @var Feed_Controller
	 */
	protected $feed_controller;

	/**
	 * @var Cron_Controller
	 */
	protected $cron_controller;

	/**
	 * @var Shortcodes_Controller
	 */
	protected $shortcodes_controller;

	/**
	 * @var Widgets_Controller
	 */
	protected $widgets_controller;

	/**
	 * @var DB_Migration_Controller
	 */
	protected $db_migration_controller;

	/**
	 * @var Episode_Controller
	 */
	public $episode_controller;

	/**
	 * @var Players_Controller
	 * */
	public $players_controller;

	/**
	 * @var Podcast_Post_Types_Controller
	 * */
	public $podcast_post_types_controller;

	/**
	 * @var Series_Controller
	 * */
	public $series_controller;

	/**
	 * @var Settings_Controller
	 * */
	public $settings_controller;

	/**
	 * @var Review_Controller
	 * */
	public $review_controller;

	/**
	 * @var Rest_Api_Controller $rest_controller
	 * */
	public $rest_controller;

	/**
	 * @var Ads_Controller
	 * */
	public $ads_controller;


	// Handlers.

	/**
	 * @var Ajax_Handler
	 */
	protected $ajax_handler;

	/**
	 * @var Upgrade_Handler
	 */
	protected $upgrade_handler;

	/**
	 * @var Admin_Notifications_Handler
	 */
	protected $admin_notices_handler;

	/**
	 * @var Log_Helper
	 * */
	protected $logger;

	/**
	 * @var CPT_Podcast_Handler
	 */
	protected $cpt_podcast_handler;

	/**
	 * @var Roles_Handler
	 */
	protected $roles_handler;

	/**
	 * @var Feed_Handler
	 * */
	protected $feed_handler;

	/**
	 * @var Series_Handler
	 * */
	protected $series_handler;

	/**
	 * @var Renderer
	 * @see ssp_renderer()
	 * */
	protected $renderer;

	/**
	 * @var Settings_Renderer
	 * */
	protected $settings_renderer;

	/**
	 * @var Castos_Handler
	 * */
	protected $castos_handler;

	/**
	 * @var Podping_Handler
	 * */
	protected $podping_handler;

	/**
	 * @var Settings_Handler
	 * */
	protected $settings_handler;

	/**
	 * @var Settings_Handler
	 * */
	protected $options_handler;

	/**
	 * @var Images_Handler
	 * */
	protected $images_handler;

	/**
	 * @var Episode_Repository
	 * */
	protected $episode_repository;

	/**
	 * Admin_Controller constructor.
	 */
	public function __construct() {
		if ( ! $this->check() ) {
			return;
		}

		ssp_version_check();

		$this->init_useful_variables();
		$this->bootstrap();
	}

	/**
	 * @return bool
	 */
	protected function check() {
		if ( isset( $_REQUEST['action'] ) && $_REQUEST['action'] === 'heartbeat' ) {
			return false;
		}

		if ( ! ssp_is_php_version_ok() ) {
			return false;
		}

		if ( ! ssp_is_vendor_ok() ) {
			return false;
		}

		return true;
	}

	/**
	 * Set up all hooks and filters for this class
	 */
	protected function bootstrap() {

		global $images_handler; // Todo: get rid of global here
		$this->images_handler = $images_handler = new Images_Handler();

		$this->renderer = new Renderer();

		$this->logger = new Log_Helper();

		$this->settings_handler = new Settings_Handler();

		$this->feed_handler = new Feed_Handler( $this->settings_handler, $this->renderer );

		$this->options_handler = new Options_Handler();

		$this->episode_repository = new Episode_Repository( $this->feed_handler );

		$this->admin_notices_handler = new Admin_Notifications_Handler();

		$this->castos_handler = new Castos_Handler( $this->feed_handler, $this->logger, $this->admin_notices_handler );

		$this->onboarding_controller = new Onboarding_Controller( $this->renderer, $this->settings_handler );

		$this->db_migration_controller = DB_Migration_Controller::instance()->init();

		$this->roles_handler = new Roles_Handler();

		$this->cpt_podcast_handler = new CPT_Podcast_Handler( $this->roles_handler, $this->feed_handler );

		$this->shortcodes_controller = new Shortcodes_Controller( $this->file, $this->version );

		$this->widgets_controller = new Widgets_Controller( $this->file, $this->version );

		$this->ajax_handler = new Ajax_Handler( $this->castos_handler, $this->admin_notices_handler );

		$this->podping_handler = new Podping_Handler( $this->logger );

		$this->assets_controller = new Assets_Controller();

		$this->series_handler = new Series_Handler( $this->admin_notices_handler, $this->roles_handler, $this->castos_handler, $this->settings_handler, $this->episode_repository );

		$this->upgrade_handler = new Upgrade_Handler( $this->episode_repository, $this->castos_handler, $this->series_handler );

		$this->feed_controller = new Feed_Controller( $this->feed_handler, $this->renderer );

		$this->cron_controller = new Cron_Controller( $this->castos_handler, $this->episode_repository, $this->upgrade_handler );

		if ( is_admin() ) {
			$this->admin_notices_handler->bootstrap();
			$this->settings_renderer = Settings_Renderer::instance();

			global $ssp_settings, $ssp_options;
			$ssp_settings = $this->settings_controller = new Settings_Controller(
				$this->settings_handler, $this->settings_renderer, $this->renderer,
				$this->series_handler, $this->castos_handler, $this->episode_repository
			);
			$ssp_options  = new Options_Controller( $this->file, SSP_VERSION );
		}

		$this->episode_controller            = new Episode_Controller( $this->renderer, $this->episode_repository );
		$this->players_controller            = new Players_Controller( $this->renderer, $this->options_handler, $this->episode_repository );
		$this->podcast_post_types_controller = new Podcast_Post_Types_Controller(
			$this->cpt_podcast_handler,
			$this->castos_handler,
			$this->admin_notices_handler,
			$this->podping_handler,
			$this->episode_repository,
			$this->series_handler
		);

		$this->series_controller = new Series_Controller( $this->series_handler, $this->castos_handler, $this->settings_handler, $this->admin_notices_handler );

		$this->review_controller = new Review_Controller( $this->admin_notices_handler, $this->renderer );

		$this->ads_controller = new Ads_Controller( $this->castos_handler );


		// todo: further refactoring - get rid of global here
		global $ss_podcasting;
		$ss_podcasting = new Frontend_Controller( $this->episode_controller, $this->players_controller, $this->episode_repository );

		$this->init_integrations();
		$this->init_rest_api();
		$this->register_hooks_and_filters();

		// Handle localisation.
		$this->load_plugin_textdomain();
	}

	protected function init_integrations() {
		/*
		 * Gutenberg integration.
		 * Only load Blocks if the WordPress version is newer than 5.0.
		 */
		if ( version_compare( $this->get_wp_version(), '5.0', '>=' ) ) {
			new Castos_Blocks( $this->admin_notices_handler, $this->episode_repository, $this->players_controller, $this->renderer );
		}

		// Elementor integration.
		if ( ssp_is_elementor_ok() ) {
			new Elementor_Widgets();
		}

		// Yoast Schema integration.
		new Schema_Controller( $this->episode_repository );

		// Membership integrations.
		new Integrations_Controller( $this->feed_handler, $this->castos_handler, $this->logger, $this->admin_notices_handler );
	}

	/**
	 * Get any registered here services (handlers, helpers)
	 *
	 * @return Service|null
	 * */
	public function get_service( $id ) {
		$services = $this->get_available_services();

		return isset( $services[ $id ] ) ? $services[ $id ] : null;
	}

	/**
	 * @return Service[]
	 */
	public function get_available_services() {
		$properties = get_object_vars( $this );
		$services   = array();

		foreach ( $properties as $k => $v ) {
			if ( $v instanceof Service ) {
				$services[ $k ] = $v;
			}
		}

		return $services;
	}

	/**
	 * Gets current WP version.
	 *
	 * @return string
	 * */
	protected function get_wp_version() {
		global $wp_version;

		return $wp_version;
	}

	/**
	 * Init REST API
	 */
	protected function init_rest_api() {
		global $wp_version;

		// Only load WP REST API Endpoints if the WordPress version is newer than 4.7.
		if ( version_compare( $wp_version, '4.7', '>=' ) ) {
			$this->rest_controller = new Rest_Api_Controller( $this->episode_repository, $this->series_handler );
		}
	}

	/**
	 * Register all relevant front end hooks and filters
	 */
	protected function register_hooks_and_filters() {
		add_action( 'init', array( $this, 'load_localisation' ), 0 );

		// Setup custom permalink structures.
		add_action( 'init', array( $this, 'setup_permastruct' ), 10 );


		// Hide WP SEO footer text for podcast RSS feed.
		add_filter( 'wpseo_include_rss_footer', array( $this, 'hide_wp_seo_rss_footer' ) );

		if ( is_admin() ) {

			// Run any updates required
			add_action( 'admin_init', array( $this, 'maybe_run_plugin_updates' ), 11 );

			// Dismiss the categories update screen
			add_action( 'admin_init', array( $this, 'dismiss_categories_update' ) );

			// Dismiss the categories update screen
			add_action( 'admin_init', array( $this, 'disable_elementor_template_notice' ) );

			// process the import form submission
			add_action( 'admin_init', array( $this, 'submit_import_form' ) );


			// Dashboard widgets.
			add_action( 'wp_dashboard_setup', array( $this, 'ssp_dashboard_setup' ) );
			add_filter( 'dashboard_glance_items', array( $this, 'glance_items' ), 10, 1 );

			// Appreciation links.
			add_filter( 'plugin_row_meta', array( $this, 'plugin_row_meta' ), 10, 4 );

			// Add footer text to dashboard.
			add_filter( 'admin_footer_text', array( $this, 'admin_footer_text' ), 1 );

			// Check for, setup or ignore import of existing podcasts.
			add_action( 'admin_init', array( $this, 'ignore_importing_existing_podcasts' ) );

			// Filter Embed HTML Code
			add_filter( 'embed_html', array( $this, 'ssp_filter_embed_code' ), 10, 1 );

		}

		// Setup activation and deactivation hooks
		register_activation_hook( $this->file, array( $this, 'activate' ) );
		register_deactivation_hook( $this->file, array( $this, 'deactivate' ) );
	}

	public function ssp_filter_embed_code( $code ) {
		return str_replace( 'sandbox="allow-scripts"', 'sandbox="allow-scripts allow-same-origin"', $code );
	}

	/**
	 * Setup custom permalink structures
	 * @return void
	 */
	public function setup_permastruct() {

		// Episode download & player URLs
		add_rewrite_rule( '^podcast-download/([^/]*)/([^/]*)/?', 'index.php?podcast_episode=$matches[1]', 'top' );
		add_rewrite_rule( '^podcast-player/([^/]*)/([^/]*)/?', 'index.php?podcast_episode=$matches[1]&podcast_ref=player', 'top' );

		// Custom query variables
		add_rewrite_tag( '%podcast_episode%', '([^&]+)' );
		add_rewrite_tag( '%podcast_ref%', '([^&]+)' );

		// Series feed URLs
		$feed_slug = apply_filters( 'ssp_feed_slug', $this->token );
		add_rewrite_rule( '^feed/' . $feed_slug . '/([^/]*)/?', 'index.php?feed=' . $feed_slug . '&podcast_series=$matches[1]', 'top' );
		add_rewrite_tag( '%podcast_series%', '([^&]+)' );
	}

	/**
	 * @return Settings_Handler|Service
	 */
	public function get_settings_handler() {
		return $this->get_service( 'settings_handler' );
	}


	/**
	 * Register the Castos Blog dashboard widget
	 * Hooks into the wp_dashboard_setup action hook
	 */
	public function ssp_dashboard_setup() {
		wp_add_dashboard_widget( 'ssp_castos_dashboard', __( 'Castos News' ), array( $this, 'ssp_castos_dashboard' ) );
	}

	/**
	 * Castos Blog dashboard widget callback
	 */
	public function ssp_castos_dashboard() {
		?>
		<div class="castos-news hide-if-no-js">
			<?php echo $this->ssp_castos_dashboard_render(); ?>
		</div>
		<?php
	}

	/**
	 * Render the dashboard widget data
	 *
	 * @return string
	 */
	public function ssp_castos_dashboard_render() {
		$feeds = array(
			'news' => array(
				'link'         => apply_filters( 'ssp_castos_dashboard_primary_link', __( 'https://castos.com/blog/' ) ),
				'url'          => apply_filters( 'ssp_castos_dashboard_secondary_feed', __( 'https://castos.com/blog/feed/' ) ),
				'title'        => apply_filters( 'ssp_castos_dashboard_primary_title', __( 'Castos Blog' ) ),
				'items'        => 4,
				'show_summary' => 0,
				'show_author'  => 0,
				'show_date'    => 0,
			),
		);

		return $this->ssp_castos_dashboard_output( 'ssp_castos_dashboard', $feeds );
	}

	/**
	 * Generate the dashboard widget content
	 *
	 * @param $widget_id
	 * @param $feeds
	 *
	 * @return string the RSS feed output
	 */
	public function ssp_castos_dashboard_output( $widget_id, $feeds ) {
		/**
		 * Check if there is a cached version of the RSS Feed and output it
		 */
		$locale     = get_user_locale();
		$cache_key  = 'ssp_dash_v2_' . md5( $widget_id . '_' . $locale );
		$rss_output = get_transient( $cache_key );
		if ( false !== $rss_output ) {
			return $rss_output;
		}
		/**
		 * Get the RSS Feed contents
		 */
		ob_start();
		foreach ( $feeds as $type => $args ) {
			$args['type'] = $type;
			echo '<div class="rss-widget">';
			wp_widget_rss_output( $args['url'], $args );
			echo '</div>';
		}
		$rss_output = ob_get_clean();
		/**
		 * Set up the cached version to expire in 12 hours and output the content
		 */
		set_transient( $cache_key, $rss_output, 12 * HOUR_IN_SECONDS );

		return $rss_output;
	}

	/**
	 * Adding podcast episodes to 'At a glance' dashboard widget
	 *
	 * @param array $items Existing items
	 *
	 * @return array        Updated items
	 */
	public function glance_items( $items = array() ) {

		$num_posts = count( ssp_episodes( - 1, '', false, 'glance' ) );

		$post_type_object = get_post_type_object( $this->token );
		$text             = _n( '%s Episode', '%s Episodes', $num_posts, 'seriously-simple-podcasting' );
		$text             = sprintf( $text, number_format_i18n( $num_posts ) );

		if ( $post_type_object && current_user_can( $post_type_object->cap->edit_posts ) ) {
			$items[] = sprintf( '<a class="%1$s-count" href="edit.php?post_type=%1$s">%2$s</a>', $this->token, $text ) . "\n";
		} else {
			$items[] = sprintf( '<span class="%1$s-count">%2$s</span>', $this->token, $text ) . "\n";
		}

		return $items;
	}

	/**
	 * Adding appreciation links to the SSP record in the plugin list table
	 *
	 * @param array $plugin_meta Default plugin meta links
	 * @param string $plugin_file Plugin file
	 * @param array $plugin_data Array of plugin data
	 * @param string $status Plugin status
	 *
	 * @return array               Modified plugin meta links
	 */
	public function plugin_row_meta( $plugin_meta = array(), $plugin_file = '', $plugin_data = array(), $status = '' ) {

		if ( ! isset( $plugin_data['slug'] ) || $this->plugin_slug != $plugin_data['slug'] ) {
			return $plugin_meta;
		}
		$plugin_meta['docs']   = '<a href="https://support.castos.com/?utm_medium=sspodcasting&utm_source=wordpress&utm_campaign=wpplugin_08_2019" target="_blank">' . __( 'Documentation', 'seriously-simple-podcasting' ) . '</a>';
		$plugin_meta['addons'] = '<a href="https://castos.com/add-ons/?utm_medium=sspodcasting&utm_source=wordpress&utm_campaign=wpplugin_08_2019" target="_blank">' . __( 'Add-ons', 'seriously-simple-podcasting' ) . '</a>';
		$plugin_meta['review'] = '<a href="https://wordpress.org/support/view/plugin-reviews/' . $plugin_data['slug'] . '?rate=5#postform" target="_blank">' . __( 'Write a review', 'seriously-simple-podcasting' ) . '</a>';

		return $plugin_meta;
	}

	/**
	 * Ensure thumbnail support on site
	 * @return void
	 */
	public function ensure_post_thumbnails_support() {
		if ( ! current_theme_supports( 'post-thumbnails' ) ) {
			add_theme_support( 'post-thumbnails' );
		}
	}

	/**
	 * Load plugin text domain
	 * @return void
	 */
	public function load_localisation() {
		load_plugin_textdomain( $this->plugin_slug, false, dirname( plugin_basename( $this->file ) ) . '/lang/' );
	}

	/**
	 * Load localisation
	 * @return void
	 */
	public function load_plugin_textdomain() {
		$domain = $this->plugin_slug;
		// The "plugin_locale" filter is also used in load_plugin_textdomain()
		$locale = apply_filters( 'plugin_locale', get_locale(), $domain );

		load_textdomain( $domain, WP_LANG_DIR . '/' . $domain . '/' . $domain . '-' . $locale . '.mo' );
		load_plugin_textdomain( $domain, false, dirname( plugin_basename( $this->file ) ) . '/lang/' );
	}

	/**
	 * Hide RSS footer created by WordPress SEO from podcast RSS feed
	 *
	 * @param boolean $include_footer Default inclusion value
	 *
	 * @return boolean                 Modified inclusion value
	 */
	public function hide_wp_seo_rss_footer( $include_footer = true ) {

		if ( is_feed( $this->token ) ) {
			$include_footer = false;
		}

		return $include_footer;
	}

	/**
	 * All plugin activation functionality
	 * @return void
	 */
	public function activate() {
		// Setup all custom URL rules
		$this->podcast_post_types_controller->register_post_type();
		$this->series_controller->register_taxonomy();
		// Setup feed
		$this->feed_controller->add_feed();
		// Setup the Primary Podcast
		$this->series_controller->enable_default_series();
		// Setup permalink structure
		$this->setup_permastruct();
		// Flush permalinks
		flush_rewrite_rules( true );
	}

	/**
	 * All plugin deactivation functionality
	 * @return void
	 */
	public function deactivate() {
		flush_rewrite_rules();
		$this->roles_handler->remove_custom_roles();
		$this->castos_handler->remove_api_credentials();
	}

	/**
	 * Run functions on plugin update/activation
	 * @return void
	 */
	public function maybe_run_plugin_updates() {

		$previous_version = get_option( 'ssp_version', '1.0' );

		if ( $previous_version != SSP_VERSION ) {
			// always just check if the directory is ok
			ssp_get_upload_directory( false );

			update_option( 'ssp_version', SSP_VERSION );
			$this->upgrade_handler->run_upgrades( $previous_version );
		}
	}

	/**
	 * Add rating link to admin footer on SSP settings pages
	 *
	 * @param string $footer_text Default footer text
	 *
	 * @return string              Modified footer text
	 */
	public function admin_footer_text( $footer_text ) {

		// Check to make sure we're on a SSP settings page
		if ( ( isset( $_GET['page'] ) && 'podcast_settings' == esc_attr( $_GET['page'] ) ) && apply_filters( 'ssp_display_admin_footer_text', true ) ) {

			// Change the footer text
			if ( ! get_option( 'ssp_admin_footer_text_rated' ) ) {
				$footer_text = sprintf( __( 'If you like %1$sSeriously Simple Podcasting%2$s please leave a %3$s&#9733;&#9733;&#9733;&#9733;&#9733;%4$s rating. A huge thank you in advance!', 'seriously-simple-podcasting' ), '<strong>', '</strong>', '<a href="https://wordpress.org/support/plugin/seriously-simple-podcasting/reviews/?rate=5#new-post" target="_blank" class="ssp-rating-link" data-rated="' . __( 'Thanks!', 'seriously-simple-podcasting' ) . '">', '</a>' );
				$footer_text .= sprintf( "<script type='text/javascript'>
					(function($){
					  $('a.ssp-rating-link').on('click', function() {
						$.post( '" . admin_url( 'admin-ajax.php' ) . "', { action: 'ssp_rated', nonce: '%s' } );
						$(this).parent().text( $(this).data( 'rated' ) );
					})})(jQuery);
				</script>", wp_create_nonce( 'ssp_rated' ) );
			} else {
				$footer_text = sprintf( __( '%1$sThank you for publishing with %2$sSeriously Simple Podcasting%3$s.%4$s', 'seriously-simple-podcasting' ), '<span id="footer-thankyou">', '<a href="https://castos.com/seriously-simple-podcasting/" target="_blank">', '</a>', '</span>' );
			}

		}

		return $footer_text;
	}

	/**
	 * Clear the cache on post save.
	 *
	 * @param int $id POST ID
	 * @param object $post WordPress Post Object
	 *
	 * @return void
	 */
	public function invalidate_cache( $id, $post ) {
		if ( in_array( $post->post_type, ssp_post_types( true ) ) ) {
			wp_cache_delete( 'episodes', 'ssp' );
			wp_cache_delete( 'episode_ids', 'ssp' );
		}
	}

	/**
	 * Ignore podcast import
	 */
	public function ignore_importing_existing_podcasts() {
		if ( 'ignore' === filter_input( INPUT_GET, 'podcast_import_action' ) &&
			 wp_verify_nonce( $_GET['nonce'], 'podcast_import_action' ) &&
			 current_user_can( 'manage_podcast' )
		) {
			update_option( 'ss_podcasting_podmotor_import_podcasts', 'false' );
		}
	}

	/**
	 * Processes the Import forms from the Import tab in the plugin settings
	 */
	public function submit_import_form() {

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

		if ( empty( $action ) || 'post_import_form' !== sanitize_text_field( $action ) ) {
			return;
		}

		check_admin_referer( 'ss_podcasting_import' );

		$submit = '';
		if ( isset( $_POST['Submit'] ) ) {
			$submit = sanitize_text_field( $_POST['Submit'] );
		}

		// The user has submitted the Import your podcast setting
		$trigger_import_submit = __( 'Trigger sync', 'seriously-simple-podcasting' );
		if ( $trigger_import_submit === $submit ) {
			$import = sanitize_text_field( $_POST['ss_podcasting_podmotor_import'] );
			if ( 'on' === $import ) {
				$result = $this->castos_handler->trigger_podcast_import();
				if ( 'success' !== $result['status'] ) {
					add_action( 'admin_notices', array( $this, 'trigger_import_error' ) );
				} else {
					add_action( 'admin_notices', array( $this, 'trigger_import_success' ) );
				}

				return;
			} else {
				update_option( 'ss_podcasting_podmotor_import', 'off' );
			}
		}

		// The user has submitted the external import form
		$begin_import_submit = __( 'Begin Import Now', 'seriously-simple-podcasting' );
		if ( $begin_import_submit === $submit ) {
			$external_rss = wp_strip_all_tags(
				stripslashes(
					esc_url_raw( $_POST['external_rss'] )
				)
			);
			if ( ! empty( $external_rss ) ) {
				$import_post_type = SSP_CPT_PODCAST;
				if ( isset( $_POST['import_post_type'] ) ) {
					$import_post_type = sanitize_text_field( $_POST['import_post_type'] );
				}
				$import_series = '';
				if ( isset( $_POST['import_series'] ) ) {
					$import_series = sanitize_text_field( $_POST['import_series'] );
				}
				$import_podcast_data = false;
				if ( isset( $_POST['import_podcast_data'] ) ) {
					$import_podcast_data = filter_var( $_POST['import_podcast_data'], FILTER_VALIDATE_BOOLEAN );
				}
				$ssp_external_rss = array(
					'import_rss_feed'     => $external_rss,
					'import_post_type'    => $import_post_type,
					'import_series'       => $import_series,
					'import_podcast_data' => $import_podcast_data,
				);
				update_option( 'ssp_external_rss', $ssp_external_rss );
				add_action( 'admin_notices', array( $this, 'import_form_success' ) );
			}
		}
	}

	/**
	 * Admin error to display if the import trigger fails
	 */
	public function trigger_import_error() {
		?>
		<div class="notice notice-info is-dismissible">
			<p><?php esc_attr_e( 'An error occurred starting your podcast import. Please contact support at hello@castos.com.', 'seriously-simple-podcasting' ); ?></p>
		</div>
		<?php
	}

	/**
	 * Admin error to display if the import trigger is successful
	 */
	public function trigger_import_success() {
		?>
		<div class="notice notice-info is-dismissible">
			<p><?php esc_attr_e( 'Your podcast import triggered successfully, please check your email for details.', 'seriously-simple-podcasting' ); ?></p>
		</div>
		<?php
	}

	/**
	 * Displays an admin message if the Import form submission was successful
	 */
	public function import_form_success() {
		?>
		<div class="notice notice-info is-dismissible">
			<p><?php esc_attr_e( 'Thanks, your external RSS feed will start importing', 'seriously-simple-podcasting' ); ?></p>
		</div>
		<?php
	}

	/**
	 * Dismiss categories update screen when user clicks 'Dismiss' link
	 */
	public function dismiss_categories_update() {
		// Check if the ssp_dismiss_categories_update variable exists
		$ssp_dismiss_categories_update = ( isset( $_GET['ssp_dismiss_categories_update'] ) ? sanitize_text_field( $_GET['ssp_dismiss_categories_update'] ) : '' );
		if ( ! $ssp_dismiss_categories_update ||
			 ! wp_verify_nonce( $_GET['nonce'], 'dismiss_categories_update' ) ||
			 ! current_user_can( 'manage_podcast' )
		) {
			return;
		}

		update_option( 'ssp_categories_update_dismissed', 'true' );
	}

	/**
	 * Dismiss Elementor templates message when user clicks 'Dismiss' link
	 */
	public function disable_elementor_template_notice() {
		// Check if the ssp_disable_elementor_template_notice variable exists
		$ssp_disable_elementor_template_notice = ( isset( $_GET['ssp_disable_elementor_template_notice'] ) ? sanitize_text_field( $_GET['ssp_disable_elementor_template_notice'] ) : '' );
		if ( empty( $ssp_disable_elementor_template_notice ) ) {
			return;
		}
		update_option( 'ss_podcasting_elementor_templates_disabled', 'true' );
	}
}
