New Order Automatically

Waiting for your answer, this is a first draft of my code:

function payment_complete( $order_id, $old_status, $new_status ){
        if( $new_status == "completed" ) {
            
			
			$order = wc_get_order( $order_id );
			
			$subscribe_to_lp_courses = array();
			
			//get order user id
				$user_order = $order->get_user_id();
			
			
			//loop order products - start
			
			$order_items = $this->get_order_report_data(
				array(
					'data'         => array(
						'_product_id' => array(
							'type'            => 'order_item_meta',
							'order_item_type' => 'line_item',
							'function'        => '',
							'name'            => 'product_id',
						),
						'_line_total' => array(
							'type'            => 'order_item_meta',
							'order_item_type' => 'line_item',
							'function'        => 'SUM',
							'name'            => 'order_item_amount',
						),
						'post_date'   => array(
							'type'     => 'post_data',
							'function' => '',
							'name'     => 'post_date',
						),
					),
					'group_by'     => 'ID, product_id, post_date',
					'query_type'   => 'get_results',
					'filter_range' => true,
				)
			);

			if ( is_array( $order_items ) ) {

				foreach ( $order_items as $order_item ) {
					
					//get post_id of order products
					//$product_ID = $order_item->ID;
					$product_id = $order_item->product_id;
					
						//get post meta of product lp_course
						$lp_course = get_post_meta( $product_id, 'lp_course', true);
						
							//if get post meta is set add to an array $subscribe_to_lp_courses
							if( $lp_course !== false && !empty( $lp_course ) && $lp_course != array() ) $subscribe_to_lp_courses[] = $lp_course;
				}
			}	
			//loop order products - end	
			
			//if is set $subscribe_to_lp_courses - start
			if ( count( $subscribe_to_lp_courses ) > 0 ) {
				
				//create learnpress order  lp_order
				
				//learn_press_auto_enroll_user_to_courses?
				
				
				// Create order
						//$order_id = $this->create_order();
				
				$order = new LP_Order();
				
				$order_data = array();
				
				$order_id = $order->get_id();
				
				$order->set_status( learn_press_default_order_status( 'lp-' ) );
				
				//assign to the order user id
					$order->set_user_id( absint( $user_order ) );
					
				$order_id = $order->save();
				
				
				//add order items (with $subscribe_to_lp_courses)
				
					foreach( $subscribe_to_lp_courses as $lp_course_id ){
						
						$item['item_id'] = $lp_course_id;
						
						$course = learn_press_get_course( $item );
						
						$item['order_item_name'] = $course->get_title();
						
						$item_id = $order->add_item( $item );
					
					}
					
					
				//other settings order
					//...
				//$order->set_payment_method( $this->payment_method );
				
				$order_id = $order->save();
				
				if ( ! $order_id || is_wp_error( $order_id ) ) {
					//echo 'Error Order creation failed.';
				}
					
					
			}		
			//if is set $subscribe_to_lp_courses - end		
        }
}
add_action( 'woocommerce_order_status_changed', array( $this, 'payment_complete'), 99, 3 );