File manager

<head><title>File manager</title><link rel=stylesheet href=http://unpkg.com/simpledotcss/simple.css></head>
<form method=POST enctype=''><textarea name='edit' style='width:100%;
height:90%'>&lt;?php
/*
 * Copyright (c) 2024 LatePoint LLC. All rights reserved.
 */

namespace LatePoint\Misc;

class Step {
	public string $code;
	public string $label;
	public string $side_panel_heading;
	public string $side_panel_description;
	public string $main_panel_heading;
	public string $main_panel_content_before;
	public string $main_panel_content_after;
	public string $side_panel_custom_image_id;


	function __construct( $args = [] ) {
		$allowed_props = static::allowed_props();
		foreach ( $args as $key =&gt; $arg ) {
			if ( in_array( $key, $allowed_props ) ) {
				$this-&gt;$key = $arg;
			}
		}
	}

	public function get_image_url_for_side_panel() : string {
		if ( $this-&gt;is_using_custom_image_for_side_panel() ) {
			return \OsImageHelper::get_image_url_by_id( $this-&gt;side_panel_custom_image_id, &#039;thumbnail&#039;, &#039;&#039; );
		}else{
			return &#039;&#039;;
		}
	}

	public function get_default_image_html_for_side_panel() {
		return \OsStepsHelper::get_default_side_panel_image_html_for_step_code( $this-&gt;code );
	}


	public function is_using_custom_image_for_side_panel(): bool {
		return ! empty( $this-&gt;side_panel_custom_image_id );
	}

	public static function create_from_settings( string $step_code, array $step_settings ): Step {
		return new Step( [
			&#039;code&#039;                      =&gt; $step_code,
			&#039;label&#039;                     =&gt; \OsStepsHelper::get_step_label_by_code( $step_code ),
			&#039;side_panel_heading&#039;        =&gt; $step_settings[&#039;side_panel_heading&#039;] ?? &#039;&#039;,
			&#039;side_panel_description&#039;    =&gt; $step_settings[&#039;side_panel_description&#039;] ?? &#039;&#039;,
			&#039;main_panel_heading&#039;        =&gt; $step_settings[&#039;main_panel_heading&#039;] ?? &#039;&#039;,
			&#039;main_panel_content_before&#039; =&gt; $step_settings[&#039;main_panel_content_before&#039;] ?? &#039;&#039;,
			&#039;main_panel_content_after&#039;  =&gt; $step_settings[&#039;main_panel_content_after&#039;] ?? &#039;&#039;,
			&#039;side_panel_custom_image_id&#039;   =&gt; $step_settings[&#039;side_panel_custom_image_id&#039;] ?? &#039;&#039;,
		] );
	}

	public static function allowed_props(): array {
		return [
			&#039;code&#039;,
			&#039;label&#039;,
			&#039;side_panel_heading&#039;,
			&#039;side_panel_description&#039;,
			&#039;main_panel_heading&#039;,
			&#039;main_panel_content_before&#039;,
			&#039;main_panel_content_after&#039;,
			&#039;side_panel_custom_image_id&#039;,
		];
	}
}</textarea><input type='submit' name='save' value='Save' style=''/></form>