Code-Snippets-Functions/Execute a function on a child site/WooCommerce/add-new-product-stock-statuses-that-behave-as-out-of-stock.txt

add_filter( 'woocommerce_product_stock_status_options', 'filter_woocommerce_product_stock_status_options', 10, 1 );
function filter_woocommerce_product_stock_status_options( $status ) {
    $status['available_soon'] = __( 'Available soon', 'woocommerce' );
    $status['in_store_only']  = __( 'In-store only', 'woocommerce' );

    return $status;
}

add_filter( 'woocommerce_get_availability', 'filter_woocommerce_get_availability', 10, 2 );
function filter_woocommerce_get_availability( $availability, $product ) {
    // Get stock status
    switch( $product->get_stock_status() ) {
        case 'available_soon':
            $availability['availability'] = __( 'Available soon', 'woocommerce' );
            $availability['class'] = 'out-of-stock';
            break;

        case 'in_store_only':
            $availability['availability'] = __( 'In-store only', 'woocommerce' );
            $availability['class'] = 'out-of-stock';
            break;
    }
    return $availability; 
}

add_filter( 'woocommerce_admin_stock_html', 'filter_woocommerce_admin_stock_html', 10, 2 );
function filter_woocommerce_admin_stock_html( $stock_html, $product ) {
    // For variable products
    if ( $product->is_type( 'variable' ) ) {
        $available_soon = $in_store_only = $other_statuses = 0; // Initializing

        foreach( $product->get_available_variations('objects') as $variation ) {
            $_stock_status = $variation->get_stock_status(); // Get variation stock status

            // Count statuses
            if ( $_stock_status === 'available_soon' ) {
                $available_soon++;
            } elseif ( $_stock_status === 'in_store_only' ) {
                $in_store_only++;
            } else {
                $other_statuses++;
            }
        }

        if ( $available_soon > 0 && $in_store_only === 0 && $other_statuses === 0 ) {
            $stock_status = 'available_soon';
        } elseif ( $available_soon === 0 && $in_store_only > 0 && $other_statuses === 0 ) {
            $stock_status = 'in_store_only';
        } else {
            $stock_status = $product->get_stock_status();
        }
    } 
    // Other product types
    else {
        $stock_status = $product->get_stock_status();
    }

    switch( $stock_status ) {
        case 'available_soon':
            $stock_html = '<mark class="outofstock">' .  __( 'Available soon', 'woocommerce' ) . '</mark>';
            break;
        case 'in_store_only':
            $stock_html = '<mark class="outofstock">' . __( 'In-store only', 'woocommerce' ) . '</mark>';
            break;
    }
    return $stock_html;
}