<?php
/**
 * Gutenberg block: tpika/gallery (server-side rendered).
 *
 * @package 3pika-gallery
 */

if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

class TPIKA_Gutenberg {

	public static function register() {
		if ( ! function_exists( 'register_block_type' ) ) {
			return;
		}
		wp_register_script( 'tpika-block', TPIKA_URL . 'assets/admin/block.js', array( 'wp-blocks', 'wp-element', 'wp-components', 'wp-block-editor', 'wp-server-side-render', 'wp-i18n' ), TPIKA_VERSION, true );

		if ( function_exists( 'wp_set_script_translations' ) ) {
			wp_set_script_translations( 'tpika-block', '3pika-gallery', TPIKA_PATH . 'languages' );
		}

		$block = array(
			'api_version'     => 2,
			'editor_script'   => 'tpika-block',
			'editor_style'    => 'tpika-gallery',
			'render_callback' => array( __CLASS__, 'render' ),
			'attributes'      => array(
				'id'         => array( 'type' => 'number', 'default' => 0 ),
				'columns'    => array( 'type' => 'string', 'default' => '' ),
				'layout'     => array( 'type' => 'string', 'default' => '' ),
				'pagination' => array( 'type' => 'string', 'default' => '' ),
			),
		);
		register_block_type( 'tpika/gallery', $block );
		add_action( 'enqueue_block_editor_assets', array( __CLASS__, 'editor_assets' ) );
	}

	public static function editor_assets() {
		wp_enqueue_style( 'tpika-gallery' );
		wp_enqueue_script( 'tpika-gallery' );
		$galleries = array();
		foreach ( tpika_gallery_options() as $id => $title ) {
			$galleries[] = array(
				'value' => $id,
				'label' => $title . ' (#' . $id . ')',
			);
		}
		wp_localize_script(
			'tpika-block',
			'TPIKA_BLOCK',
			array(
				'galleries' => $galleries,
				'newUrl'    => tpika_admin_url( 'tpika-new' ),
				'editUrl'   => tpika_admin_url( 'tpika-new', array( 'id' => 0 ) ),
			)
		);
	}

	public static function render( $attrs ) {
		$id = isset( $attrs['id'] ) ? absint( $attrs['id'] ) : 0;
		if ( ! $id ) {
			return '';
		}
		$args = array();
		foreach ( array( 'columns', 'layout', 'pagination' ) as $k ) {
			if ( ! empty( $attrs[ $k ] ) ) {
				$args[ $k ] = $attrs[ $k ];
			}
		}
		$html = wp_kses( TPIKA_Renderer::render( $id, $args ), tpika_kses_gallery() );
		return $html;
	}
}