deleting product image when deleting a product in Dokan

functions.php

<?php

add_action( 'before_delete_post', function( $id ) {
    $product = wc_get_product( $id );
    if ( ! $product ) {
        return;
    }
    $all_product_ids         = [];
    $product_thum_id_holder  = [];
    $gallery_image_id_holder = [];
    $thum_id                 = get_post_thumbnail_id( $product->get_id() );
    if ( function_exists( 'dokan' ) ) {
        $vendor = dokan()->vendor->get( dokan_get_current_user_id() );
        if ( ! $vendor instanceof WeDevs\Dokan\Vendor\Vendor || $vendor->get_id() === 0 ) {
            return;
        }
        $products = $vendor->get_products();
        if ( empty( $products->posts ) ) {
            return;
        }
        foreach ( $products->posts as $post ) {
            array_push( $all_product_ids, $post->ID );
        }
    } else {
        $args     = [ 'posts_per_page' => '-1' ];
        $products = wc_get_products( $args );
        foreach ( $products as $product ) {
            array_push( $all_product_ids, $product->get_id() );
        }
    }
    foreach ( $all_product_ids as $product_id ) {
        if ( intval( $product_id ) !== intval( $id ) ) {
            array_push( $product_thum_id_holder, get_post_thumbnail_id( $product_id ) );
            $wc_product        = wc_get_product( $product_id );
            $gallery_image_ids = $wc_product->get_gallery_image_ids();
            if ( empty( $gallery_image_ids ) ) {
                continue;
            }
            foreach ( $gallery_image_ids as $gallery_image_id ) {
                array_push( $gallery_image_id_holder, $gallery_image_id );
            }
        }
    }
    if ( ! in_array( $thum_id, $product_thum_id_holder ) && ! in_array( $thum_id, $gallery_image_id_holder ) ) {
        wp_delete_attachment( $thum_id, true );
        if ( empty( $thum_id ) ) {
            return;
        }
        $gallery_image_ids = $product->get_gallery_image_ids();
        if ( empty( $gallery_image_ids ) ) {
            return;
        }
        foreach ( $gallery_image_ids as $gallery_image_id ) {
            wp_delete_attachment( $gallery_image_id, true );
        }
    }
} );

Hi,
First of all, I deeply appreciate your hard work and effort. You've helped me, as a non developer, a lot with your videos and codes.

I tried installing this code into my theme child's functions.php and there was a fatal error in my site. Why do you think this happened?

Many thanks,
Irving Beltran

Hello @nayemDevs,
I found a big problem related to this code. When the Dokan Single Product Multiple Vendor module (https://wedevs.com/docs/dokan/modules/single-product-multiple-vendor/) is enabled, other sellers copy the item to themselves. But if another seller decides to suddenly delete the copied item, the image is deleted from both them and the original seller. It is necessary to add a check whether the seller is the author of images (gallery) of products. Perhaps the code is missing a check to see if the user is the author of the image.
Please add a fix to make it work correctly.
Thanks