Bulk regenerate download permissions

bulk-regenerate-download-permissions.php

<?php add_action( 'wp_ajax_ccom_regenerate', function() {

    $offset = empty( $_POST['offset'] )
        ? 0 : intval( $_POST['offset'] );
    $args = [
        'status' => array('wc-completed'),
        'type' => 'shop_order',
        'limit' => 100,
        'offset' => $offset,
    ];
    $orders = wc_get_orders( $args );

    if( ! $orders ) {
        wp_die();
    }

    foreach( $orders as $order ) {
        echo '.';
        if( ! $order->has_downloadable_item() ) {
            continue;
        }
        $data_store = WC_Data_Store::load( 'customer-download' );
        $data_store->delete_by_order_id( $order->get_id() );
        wc_downloadable_product_permissions( $order->get_id(), true );
    }

    wp_die();

} );

add_action( 'admin_notices', function() {

    echo '
        <div class="notice notice-info is-dismissible" id="ccom_regenerate">
            <p>
                <a href="#" id="ccom_regenerate_button">
                    Regenerate Download Permissions
                </a>
            </p>
        </div>
    ';

} );

add_action( 'admin_enqueue_scripts', function() {

    wp_enqueue_script( 'jquery' );

    wp_add_inline_script( 'jquery', '

        var ccom_regenerate_offset = 0;
        jQuery( document ).ready( function( $ ) {
            $( "#ccom_regenerate_button" ).click( function() {
                ccom_regenerate( $ );
            } );
        } );

        function ccom_regenerate( $ ) {

            var data = {
                "action": "ccom_regenerate",
                "offset": ccom_regenerate_offset
            };
            $.post( ajaxurl, data, function( response ) {

                // Handle EOF Or Error
                if( response == "" ) { return; }

                // Display Page Processed
                $( "div#ccom_regenerate" )
                    .append( " [offset:" + ccom_regenerate_offset + "] " );

                // Advance
                ccom_regenerate_offset += 100;
                ccom_regenerate( $ );

            } );

        }

    ', 'after' );

} );

?>