Ticketing and community platform for clubs and events

public function handle(): void
{
    $order = Order::with(['billingAddress', 'user', 'items'])->find($this->orderId);

    // On-site (POS) sales are invoiced through another flow and have no billing address.
    if (Str::startsWith($order?->order_number ?? '', 'POS-')) {
        return;
    }

    // What was actually paid is authoritative, not the list price of the items:
    // a fully discounted order has total_amount = 0 and must not be invoiced.
    if ((float) ($order?->total_amount ?? 0) <= 0) {
        Log::info('Invoice skipped: order total is zero', ['order_id' => $this->orderId]);
        return;
    }

    if (empty($order?->billingAddress)) {
        Log::error('Invoice skipped: billing address is empty', ['order_id' => $this->orderId]);
        return;
    }

    // ... build the invoice and hand it to the provider configured for this organiser
}