Sindbad~EG File Manager

<?php
namespace Templately\Core\Platform;

use Templately\API\Import;
use Templately\Core\Platform;
use Templately\Core\Module;
use Templately\Utils\Helper;

use WP_Error;
use function get_permalink;
use function get_edit_post_link;
use function wp_insert_post;
use function wp_slash;
use function wp_unslash;
use function json_decode;

class Gutenberg extends Platform {
	/**
	 * Platform ID
	 * @var string
	 */
    private $id = 'gutenberg';

	/**
	 * Is gutenberg is active or not
	 * @var boolean
	 */
	public $is_gutenberg_active = false;

	/**
	 * Initializing the platform and add it to module.
	 */
    public function __construct(){
        Module::get_instance()->add( (object) [
            'id' => $this->id,
            'object' => $this
        ]);

		$this->hooks();
    }

	/**
	 * Initializing Hooks
	 * @return void
	 */
	public function hooks(){
		add_action( 'enqueue_block_editor_assets', [ $this, 'scripts' ] );
		add_action( 'admin_footer', [ $this, 'print_admin_js_template' ] );
	}

	/**
	 * Assets Enqueueing
	 * @return void
	 */
	public function scripts(){
		$this->is_gutenberg_active = true;
		templately()->assets->enqueue( 'templately-gutenberg', 'css/gutenberg.css' );
        templately()->assets->enqueue( 'templately-gutenberg', 'js/gutenberg.js' );
		templately()->admin->scripts( 'gutenberg' );
    }

	/**
	 * 	Templately Button and Wrapper for Gutenberg
	 *
	 * @since 2.0.0
	 *
	 * @return void
	 */
	public function print_admin_js_template() {
		if ( ! $this->is_gutenberg_active ) {
			return;
		}

		?>
		<div id="templately-gutenberg"></div>
		<script id="templately-gutenberg-button-switch-mode" type="text/html">
			<div id="templately-gutenberg-buttons">
				<button id="templately-gutenberg-button" type="button" class="button button-primary button-large gutenberg-add-templately-button">
					<i class="templately-icon" aria-hidden="true"></i>
					<?php echo esc_html__( 'Templately', 'templately' ); ?>
				</button>
				<button id="templately-cloud-push" type="button" class="button button-primary button-large">
					<i class="templately-cloud-icon" aria-hidden="true"></i>
					<?php echo sprintf( __( 'Save %s in Templately', 'templately' ), get_post_type() ); ?>
				</button>
			</div>
		</script>
		<?php
	}

	/**
	 * Determine Active UI Theme
	 * @return string
	 */
	public function ui_theme(){
		return 'light';
	}

	/**
	 * Creating a gutenberg page
	 *
	 * @param integer $id
	 * @param string $title
	 * @param Import $importer
	 *
	 * @since 2.0.0
	 *
	 * @return array|WP_Error array on success, WP_Error on failure.
	 */
	public function create_page( $id, $title, $importer = null ){
		$inserted_ID = $importer->get_content( $id, 'gutenberg' );

		if( is_wp_error( $inserted_ID ) ) {
			return $inserted_ID;
		}

        if ( ! empty( $inserted_ID['content'] ) ) {
            $inserted_ID = wp_insert_post( array (
                'post_status'  => 'draft',
                'post_type'    => 'page',
                'post_title'   => $title,
                'post_content' => wp_slash($inserted_ID['content']),
            ) );
        }

		if ( is_wp_error( $inserted_ID ) ) {
			return Helper::error(
				'import_failed',
				$inserted_ID->get_error_message(),
				'import/page',
				$inserted_ID->get_error_code()
			);
		}

		return [
			'post_id'             => $inserted_ID,
			'edit_link'           => get_edit_post_link( $inserted_ID, 'internal' ),
			'visit'               => get_permalink( $inserted_ID )
		];
	}

	/**
	 * Inserting Template in Gutenberg Editor
	 *
	 * @param mixed $data
	 * @return array
	 */
    public function insert( $data ){
		return $data;
	}
}