invoiceninja/app/Notifications/Admin/EntityViewedNotification.php

<?php

namespace App\Notifications\Admin;

use App\Utils\Number;
use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Notifications\Messages\MailMessage;
use Illuminate\Notifications\Messages\SlackMessage;
use Illuminate\Notifications\Notification;

class EntityViewedNotification extends Notification implements ShouldQueue
{
    use Queueable;

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

    protected   $entity;

    protected   $company;

    protected   $settings; 

    public      $is_system;

    protected   $contact;

    public function __construct($invitation, $entity_name, $is_system = false, $settings = null)
    {
        $this->entity_name = $entity_name;
        $this->entity = $invitation->{$entity_name};
        $this->contact = $invitation->contact;
        $this->company = $invitation->company;
        $this->settings = $this->entity->client->getMergedSettings();
        $this->is_system = $is_system;
        $this->invitation = $invitation;

    }

    /**
     * Get the notification's delivery channels.
     *
     * @param  mixed  $notifiable
     * @return array
     */
    public function via($notifiable)
    {

        return $this->is_system ? ['slack'] : ['mail'];
    }

    /**
     * Get the mail representation of the notification.
     *
     * @param  mixed  $notifiable
     * @return \Illuminate\Notifications\Messages\MailMessage
     */
    public function toMail($notifiable)
    {
        $data = $this->buildDataArray();
        $subject = $this->buildSubject();

        return (new MailMessage)
                    ->subject($subject)
                    ->markdown('email.admin.generic', $data);
    }

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

    public function toSlack($notifiable)
    {
        $logo = $this->company->present()->logo();
        $amount = Number::formatMoney($this->entity->amount, $this->entity->client);

        // return (new SlackMessage)
        //         ->success()
        //         ->from(ctrans('texts.notification_bot'))
        //         ->image($logo)
        //         ->content(ctrans("texts.notification_{$this->entity_name}_viewed", 
        //         [
        //             'amount' => $amount, 
        //             'client' => $this->contact->present()->name(), 
        //             $this->entity_name => $this->entity->number
        //         ]));

        return (new SlackMessage)
            ->from(ctrans('texts.notification_bot'))
            ->success()
            ->image('https://app.invoiceninja.com/favicon-v2.png')
            ->content(ctrans("texts.notification_{$this->entity_name}_viewed", 
                [
                    'amount' => $amount, 
                    'client' => $this->contact->present()->name(), 
                    $this->entity_name => $this->entity->number
                ]))
            ->attachment(function ($attachment) use($amount){
                $attachment->title(ctrans('texts.entity_number_placeholder', ['entity' => ucfirst($this->entity_name), 'entity_number' => $this->entity->number]), $this->invitation->getAdminLink())
                           ->fields([
                                ctrans('texts.client') => $this->contact->present()->name(),
                                ctrans('texts.status_viewed') => $this->invitation->viewed_date,
                            ]);
            });

    }


    private function buildDataArray()
    {

        $amount = Number::formatMoney($this->entity->amount, $this->entity->client);

        $data = [
            'title' => $this->buildSubject(),
            'message' => ctrans("texts.notification_{$this->entity_name}_viewed", 
                [
                    'amount' => $amount, 
                    'client' => $this->contact->present()->name(), 
                    $this->entity_name => $this->entity->number,
                ]),
            'url' => config('ninja.site_url') . "/{$this->entity_name}s/" . $this->entity->hashed_id,
            'button' => ctrans("texts.view_{$this->entity_name}"),
            'signature' => $this->settings->email_signature,
            'logo' => $this->company->present()->logo(),
        ];


        return $data;

    }

    private function buildSubject()
    {
        $subject = ctrans("texts.notification_{$this->entity_name}_viewed_subject", 
        [
            'client' => $this->contact->present()->name(), 
            $this->entity_name => $this->entity->number,
        ]);

        return $subject;

    }
}