I'm inserting WooCommerce products programmatically to the database, but I'm having trouble inserting and linking first image as featured image and multiple images for gallery assigned respectively to each product from multiple URLs, Would you have any idea how to do it?

<?php
    if(!empty($girls))
    {
        $ops = array_map('str_getcsv', file(get_option('siteurl') . '/wp-content/uploads/2022/02/'. $girls));
        
        $myres = array_map('array_filter', $ops);
        $ops2 = array_filter($myres);
        
        $items = array();
        foreach($ops2 as $username) {
        $items[] = $username;
        }

        foreach ($items as $it) {
            

            $title = array_key_exists(2, $it) ? $it[2] : null;
            $description = array_key_exists(3, $it) ? $it[3] : null;
            // Multiple images in each key
            $img = array_key_exists(4, $it) ? $it[4] : null;
            $secimg = explode(';', $img);
            $category = array_key_exists(5, $it) ? $it[5] : null;
            $price = array_key_exists(8, $it) ? $it[8] : null;
            $stock = array_key_exists(6, $it) ? $it[6] : null;
            
                    foreach ($secimg as $rurl) {
                    // <img height="200px" src="/'.$newtxt[0].'"/>
                    
                        $postarr = array(
                            'post_title' => wp_strip_all_tags($title),
                            'post_name' => $title,
                            'post_content' => $description,
                            'post_type' => 'product',
                            'post_status' => 'publish',
                        );
                        $insert_id = wp_insert_post($postarr, true);

                        
                        foreach ($secimg as $rurl) {
                            if($rurl){
                                
                                // <img height="200px" src="/'.$newtxt[0].'"/>
                                    $image_url = "/";
                                    $image_url .= $rurl;//This is the sanitized image url.


                            $urlimg = download_url( $image_url);
    
                            update_post_meta($insert_id, '_product_image_gallery', implode(',', array_keys($urlimg)));
                            
                            //update_post_meta($post_id,  array_push($post_id, '_product_image_gallery', $value ));
                        }

                    }


                    //set Product Category
                    wp_set_object_terms($insert_id, $category, 'product_cat');

                    //set product type
                    wp_set_object_terms($insert_id, 'simple', 'product_type');

                    update_post_meta( $insert_id, '_price', $price );
                    update_post_meta($insert_id, '_sku', $stock);
                    update_post_meta($insert_id, 'total_sales', '0');
                    
                }// End first foreach
            
            
        }

    }?>