invoiceninja/app/Notifications/ClientContactRequestCancellation.php

<?php

namespace App\Notifications;

use App\Mail\RecurringCancellationRequest;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Messages\MailMessage;
use Illuminate\Notifications\Messages\SlackMessage;
use Illuminate\Notifications\Notification;
use Illuminate\Support\Facades\Mail;

class ClientContactRequestCancellation extends Notification implements ShouldQueue
{
    use Queueable;

    /**
     * Create a new notification instance.
     *
     * @return void
     */
    
    protected $recurring_invoice;

    protected $client_contact;

    /**
     * The callback that should be used to build the mail message.
     *
     * @var \Closure|null
     */
    public static $toMailCallback;


    public function __construct($recurring_invoice, $client_contact)
    {
        $this->recurring_invoice = $recurring_invoice;
        $this->client_contact = $client_contact;
    }

    /**
     * Get the notification's delivery channels.
     *
     * @param  mixed  $notifiable
     * @return array
     */
    public function via($notifiable)
    {
        return ['mail','slack'];
    }

    /**
     * Get the mail representation of the notification.
     *
     * @param  mixed  $notifiable
     * @return \Illuminate\Notifications\Messages\MailMessage
     */
    public function toMail($notifiable)
    {
        if (static::$toMailCallback) {
            return call_user_func(static::$toMailCallback, $notifiable, $this->client_contact);
        }
        

        $client_contact_name = $this->client_contact->present()->name();
        $client_name = $this->client_contact->client->present()->name();
        $recurring_invoice_number = $this->recurring_invoice->number;


        return (new MailMessage)
            ->subject('Request for recurring invoice cancellation from '.$client_contact_name)
            ->markdown('email.support.cancellation', [
                'message' => "Contact [{$client_contact_name}] from Client [{$client_name}] requested to cancel Recurring Invoice [#{$recurring_invoice_number}]",
            ]);

    }

    /**
     * Get the array representation of the notification.
     *
     * @param  mixed  $notifiable
     * @return array
     */
    public function toArray($notifiable)
    {
        return [
            //
        ];
    }

    public function toSlack($notifiable)
    {

    $name = $this->client_contact->present()->name();
    $client_name = $this->client_contact->client->present()->name();
    $recurring_invoice_number = $this->recurring_invoice->number;

    return (new SlackMessage)
                ->success()
                ->to("#devv2")
                ->from("System")
                ->image('https://app.invoiceninja.com/favicon.png')
                ->content("Contact {$name} from client {$client_name} requested to cancel Recurring Invoice #{$recurring_invoice_number}");
    }


    /**
     * Set a callback that should be used when building the notification mail message.
     *
     * @param  \Closure  $callback
     * @return void
     */
    public static function toMailUsing($callback)
    {
        static::$toMailCallback = $callback;
    }
}