<?php
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

/**
 * Registers the "Shoppable Video Feed" Gutenberg block — a server-rendered
 * (dynamic) block so it always matches the shortcode/Elementor output.
 * This gives us wider page-builder coverage than competitors that only
 * ship an Elementor widget or shortcode.
 */
class ADDOSHVI_Gutenberg {

	private static $instance = null;

	public static function instance() {
		if ( null === self::$instance ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	private function __construct() {
		add_action( 'init', array( $this, 'register_block' ) );
		add_action( 'enqueue_block_editor_assets', array( $this, 'enqueue_editor_data' ) );
	}

	public function register_block() {
		if ( ! function_exists( 'register_block_type' ) ) {
			return; // WordPress too old for block editor.
		}

		register_block_type(
			ADDOSHVI_PLUGIN_DIR . 'blocks/addoshvi-feed',
			array(
				'render_callback' => array( $this, 'render_block' ),
			)
		);
	}

	public function render_block( $attributes ) {
		$atts = array(
			'layout'         => ! empty( $attributes['layout'] ) ? $attributes['layout'] : 'carousel',
			'heading'        => ! empty( $attributes['heading'] ) ? $attributes['heading'] : '',
			'subheading'     => ! empty( $attributes['subheading'] ) ? $attributes['subheading'] : '',
			'ids'            => '',
			'limit'          => ! empty( $attributes['limit'] ) ? absint( $attributes['limit'] ) : 10,
			'columns'        => ! empty( $attributes['columns'] ) ? $attributes['columns'] : 3,
			'columns_tablet' => ! empty( $attributes['columnsTablet'] ) ? $attributes['columnsTablet'] : 2,
			'columns_mobile' => ! empty( $attributes['columnsMobile'] ) ? $attributes['columnsMobile'] : 1,
			'scroll_by'      => ! empty( $attributes['scrollBy'] ) ? $attributes['scrollBy'] : 1,
			'arrows'         => ! isset( $attributes['arrows'] ) || $attributes['arrows'] ? 'yes' : 'no',
			'dots'           => ! isset( $attributes['dots'] ) || $attributes['dots'] ? 'yes' : 'no',
			'autoplay'       => ! empty( $attributes['autoplay'] ) ? 'yes' : 'no',
			'autoplay_speed' => ! empty( $attributes['autoplaySpeed'] ) ? absint( $attributes['autoplaySpeed'] ) : 3000,
			'pause_on_hover' => ! isset( $attributes['pauseOnHover'] ) || $attributes['pauseOnHover'] ? 'yes' : 'no',
			'infinite'       => ! isset( $attributes['infinite'] ) || $attributes['infinite'] ? 'yes' : 'no',
		);

		if ( isset( $attributes['selectMode'] ) && 'specific' === $attributes['selectMode'] && ! empty( $attributes['ids'] ) ) {
			$atts['ids'] = sanitize_text_field( $attributes['ids'] );
		}

		return ADDOSHVI_Shortcode::render( $atts );
	}

	/**
	 * Give the block editor JS the list of videos (id + title) for the
	 * "choose specific videos" FormTokenField control.
	 */
	public function enqueue_editor_data() {
		if ( ! post_type_exists( ADDOSHVI_POST_TYPE ) ) {
			return;
		}

		$posts = get_posts( array(
			'post_type'      => ADDOSHVI_POST_TYPE,
			'post_status'    => 'publish',
			'posts_per_page' => 100,
			'orderby'        => 'title',
			'order'          => 'ASC',
		) );

		$videos = array();
		foreach ( $posts as $post ) {
			$videos[] = array(
				'id'    => $post->ID,
				'title' => $post->post_title ? $post->post_title : sprintf(
					/* translators: %d: video post ID, used as a fallback title for an untitled video. */
					__( 'Video #%d', 'addonn-shoppable-video' ),
					$post->ID
				),
			);
		}

		wp_add_inline_script(
			'addoshvi-feed-editor-script',
			'window.ADDOSHVI_Block_Data = ' . wp_json_encode( array( 'videos' => $videos ) ) . ';',
			'before'
		);
	}
}