<?php

namespace App\Mail;

use Acme\Dhl\Models\DhlShipment;
use App\Models\ShoppingOrder;
use App\Services\Util;
use Illuminate\Bus\Queueable;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use Illuminate\Support\Collection;

class MailDhlTracking extends Mailable
{
    use Queueable, SerializesModels;

    protected $shipments;

    protected $order;

    public $subject;

    /**
     * Create a new message instance.
     *
     * @param DhlShipment|Collection $shipments Single shipment or collection of shipments
     * @param ShoppingOrder $order
     */
    public function __construct($shipments, ShoppingOrder $order)
    {
        // Accept both single shipment and collection
        if ($shipments instanceof DhlShipment) {
            $this->shipments = collect([$shipments]);
        } else {
            $this->shipments = $shipments;
        }

        $this->order = $order;

        // Adjust subject based on number of shipments
        if ($this->shipments->count() > 1) {
            $this->subject = __('email.dhl_tracking_subject_multiple', ['count' => $this->shipments->count()]);
        } else {
            $this->subject = __('email.dhl_tracking_subject');
        }
    }

    public function build()
    {
        $shoppingUser = $this->order->shopping_user;

        $salutation = __('email.hello');
        if ($shoppingUser && $shoppingUser->billing_firstname) {
            $salutation = __('email.hello') . ' ' . $shoppingUser->billing_firstname;
        }

        // For backward compatibility, also provide single shipment data
        $primaryShipment = $this->shipments->first();

        return $this->view('emails.dhl_tracking')->with([
            'salutation' => $salutation,
            'shipments' => $this->shipments,
            'shipment' => $primaryShipment, // Backward compatibility
            'order' => $this->order,
            'trackingNumber' => $primaryShipment->dhl_shipment_no, // Backward compatibility
            'trackingUrl' => $primaryShipment->getTrackingUrl(), // Backward compatibility
            'orderNumber' => $this->order->getLastShoppingPayment('reference'),
            'greetings' => __('email.greetings'),
            'sender' => __('email.sender'),
            'url' => Util::getMyMivitaUrl(),
        ]);
    }
}