<?php
/**
 * Gutenberg block (no build step — registered with plain ES5).
 *
 * @package Stunning_Related
 */

defined( 'ABSPATH' ) || exit;

/**
 * Block.
 */
class SRPP_Block {

	/**
	 * Hooks.
	 */
	public static function init() {
		add_action( 'init', array( __CLASS__, 'register' ), 20 );
	}

	/**
	 * Register the block type.
	 */
	public static function register() {
		if ( ! function_exists( 'register_block_type' ) ) {
			return;
		}

		wp_register_script(
			'srpp-block',
			SRPP_URL . 'public/js/block.js',
			array( 'wp-blocks', 'wp-element', 'wp-components', 'wp-block-editor', 'wp-i18n' ),
			SRPP_VERSION,
			true
		);

		$choices = array();

		foreach ( ( is_admin() ? SRPP_Display::all() : array() ) as $display ) {
			$choices[] = array(
				'value' => (string) $display->id,
				'label' => $display->title . ( $display->is_active() ? '' : ' (' . __( 'inactive', 'advanced-css3-related-posts-widget' ) . ')' ),
			);
		}

		$templates = array( array( 'value' => '', 'label' => __( 'Use Display setting', 'advanced-css3-related-posts-widget' ) ) );

		foreach ( SRPP_Templates::all() as $id => $template ) {
			$templates[] = array( 'value' => $id, 'label' => $template['name'] );
		}

		wp_localize_script(
			'srpp-block',
			'SRPP_BLOCK',
			array(
				'displays'  => $choices,
				'templates' => $templates,
				'title'     => __( 'Related Content', 'advanced-css3-related-posts-widget' ),
				'empty'     => __( 'Create a Display first under Related Content → Displays.', 'advanced-css3-related-posts-widget' ),
				'selectLbl' => __( 'Display', 'advanced-css3-related-posts-widget' ),
				'itemsLbl'  => __( 'Items (0 = Display setting)', 'advanced-css3-related-posts-widget' ),
				'colsLbl'   => __( 'Desktop columns (0 = Display setting)', 'advanced-css3-related-posts-widget' ),
				'tplLbl'    => __( 'Template', 'advanced-css3-related-posts-widget' ),
			)
		);

		register_block_type(
			'stunning-related/related-content',
			array(
				'editor_script'   => 'srpp-block',
				'render_callback' => array( __CLASS__, 'render' ),
				'attributes'      => array(
					'displayId' => array( 'type' => 'string', 'default' => '' ),
					'items'     => array( 'type' => 'number', 'default' => 0 ),
					'columns'   => array( 'type' => 'number', 'default' => 0 ),
					'template'  => array( 'type' => 'string', 'default' => '' ),
				),
			)
		);
	}

	/**
	 * Server render.
	 *
	 * @param array $attributes Attributes.
	 * @return string
	 */
	public static function render( $attributes ) {
		$display = SRPP_Display::get( isset( $attributes['displayId'] ) ? $attributes['displayId'] : 0 );

		if ( ! $display ) {
			return '';
		}

		if ( ! SRPP_Conditions::passes( $display, (int) get_the_ID(), 'manual' ) ) {
			return '';
		}

		return srpp()->render->render(
			$display,
			array(
				'post_id'   => (int) get_the_ID(),
				'items'     => isset( $attributes['items'] ) ? absint( $attributes['items'] ) : 0,
				'cols_d'    => isset( $attributes['columns'] ) ? absint( $attributes['columns'] ) : 0,
				'template'  => isset( $attributes['template'] ) ? sanitize_key( $attributes['template'] ) : '',
				'placement' => 'block',
			)
		);
	}
}