<?php
/**
 * Yoast SEO: News plugin file.
 *
 * @package WPSEO_News
 */

use Yoast\WP\SEO\Presenters\Admin\Meta_Fields_Presenter;

/**
 * Represents the Yoast SEO: News metabox.
 */
class WPSEO_News_Meta_Box extends WPSEO_Metabox {

	/**
	 * Holds the flattened version to use with enqueueing the scripts.
	 *
	 * @var string
	 */
	protected $script_version;

	/**
	 * Constructs WPSEO_News_Meta_Box.
	 *
	 * @param string $script_version The version to use for the script.
	 *
	 * @noinspection PhpMissingParentConstructorInspection The parent constructor only has unwanted side-effects.
	 */
	public function __construct( $script_version ) {
		$this->script_version = $script_version;
	}

	/**
	 * Registers the hooks.
	 *
	 * @return void
	 */
	public function register_hooks() {
		global $pagenow;

		// Register the fields as meta.
		add_filter( 'add_extra_wpseo_meta_fields', [ $this, 'add_meta_fields_to_wpseo_meta' ] );

		// Register the fields for saving.
		add_filter( 'wpseo_save_metaboxes', [ $this, 'save' ], 10, 1 );

		// Render the fields alongside other hidden inputs.
		add_filter( 'wpseo_content_meta_section_content', [ $this, 'add_news_fields_to_the_content' ] );
		add_filter( 'wpseo_elementor_hidden_fields', [ $this, 'add_news_fields_to_the_content' ] );

		// Register the meta box tab.
		add_filter( 'yoast_free_additional_metabox_sections', [ $this, 'add_metabox_section' ] );

		// Load the editor script when on an edit post or new post page.
		$is_post_edit_page = $pagenow === 'post.php' || $pagenow === 'post-new.php';
		if ( $is_post_edit_page ) {
			add_action( 'admin_enqueue_scripts', [ $this, 'enqueue_scripts' ] );
		}

		// Load the editor script when on an elementor edit page.
		// phpcs:ignore WordPress.Security.NonceVerification.Recommended -- Not form data.
		$get_action             = isset( $_GET['action'] ) && is_string( $_GET['action'] ) ? sanitize_text_field( wp_unslash( $_GET['action'] ) ) : null;
		$is_elementor_edit_page = $pagenow === 'post.php' && $get_action === 'elementor';
		if ( $is_elementor_edit_page ) {
			add_action( 'elementor/editor/before_enqueue_scripts', [ $this, 'enqueue_scripts' ] );
		}

		// Register the dismissible alert.
		$editor_changes_alert = new WPSEO_News_Editor_Changes_Alert();
		$editor_changes_alert->register_hooks();
	}

	/**
	 * The metaboxes to display and save for the tab.
	 *
	 * @param string $post_type The post type to get metaboxes for. Unused in this implementation.
	 *
	 * @return array[] Multi-level array with information on each metabox to display.
	 */
	public function get_meta_boxes( $post_type = 'post' ) {
		return [
			'newssitemap-stocktickers' => [
				'name'        => 'newssitemap-stocktickers',
				'std'         => '',
				'type'        => 'hidden',
			],
			'newssitemap-robots-index' => [
				'type'          => 'hidden',
				'default_value' => '0', // The default value will be 'index'; See the list of options.
				'std'           => '',
				'options'       => [
					'0' => 'index',
					'1' => 'noindex',
				],
			],
		];
	}

	/**
	 * Add the meta boxes to meta box array so they get saved.
	 *
	 * @param array $meta_boxes The metaboxes to save.
	 *
	 * @return array
	 */
	public function save( $meta_boxes ) {
		return array_merge( $meta_boxes, $this->get_meta_boxes() );
	}

	/**
	 * Add WordPress SEO meta fields to WPSEO meta class.
	 *
	 * @param array $meta_fields The meta fields to extend.
	 *
	 * @return array
	 */
	public function add_meta_fields_to_wpseo_meta( $meta_fields ) {
		$meta_fields['news'] = $this->get_meta_boxes();

		return $meta_fields;
	}

	/**
	 * Adds a news section to the metabox sections array.
	 *
	 * @param array $sections The sections to add to.
	 *
	 * @return array
	 */
	public function add_metabox_section( $sections ) {
		if ( ! $this->is_post_type_supported() ) {
			return $sections;
		}

		$sections[] = [
			'name'         => 'news',
			'link_content' => '<span class="dashicons dashicons-admin-plugins"></span>' . esc_html__( 'News', 'wordpress-seo-news' ),
			'content'      => '<div id="wpseo-news-metabox-root" class="wpseo-meta-section-content"></div>',
		];

		return $sections;
	}

	/**
	 * Adds the News meta fields to the content.
	 *
	 * @param string $content The content.
	 *
	 * @return string The content with the rendered News meta fields.
	 */
	public function add_news_fields_to_the_content( $content ) {
		return $content . new Meta_Fields_Presenter( $this->get_metabox_post(), 'news' );
	}

	/**
	 * Enqueues the editor scripts when the post type is supported.
	 *
	 * @return void
	 */
	public function enqueue_scripts() {
		if ( ! $this->is_post_type_supported() ) {
			return;
		}

		$script_handle = 'wpseo-news-editor';
		$dependencies  = [
			'wp-components',
			'wp-compose',
			'wp-data',
			'wp-dom-ready',
			'wp-element',
			'wp-hooks',
			'wp-i18n',
			'wp-plugins',
			'yoast-seo-editor-modules',
		];

		wp_enqueue_script(
			$script_handle,
			plugins_url( 'js/dist/yoast-seo-news-editor-' . $this->script_version . '.js', WPSEO_NEWS_FILE ),
			$dependencies,
			WPSEO_News::VERSION,
			true
		);

		$javascript_strings = new WPSEO_News_Javascript_Strings();
		$javascript_strings->localize_script( $script_handle );

		wp_localize_script(
			$script_handle,
			'wpseoNewsScriptData',
			[
				'isBlockEditor'        => WP_Screen::get()->is_block_editor(),
				'newsChangesAlertLink' => WPSEO_Shortlinker::get( 'https://yoa.st/news-changes' ),
			]
		);
	}

	/**
	 * Check if current post_type is supported.
	 *
	 * @return bool
	 */
	protected function is_post_type_supported() {
		static $is_supported;

		if ( $is_supported === null ) {
			// Default is false.
			$is_supported = false;

			$post = $this->get_metabox_post();

			if ( is_a( $post, 'WP_Post' ) ) {
				// Get supported post types.
				$post_types = WPSEO_News::get_included_post_types();

				// Display content if post type is supported.
				if ( ! empty( $post_types ) && in_array( $post->post_type, $post_types, true ) ) {
					$is_supported = true;
				}
			}
		}

		return $is_supported;
	}
}