invoiceninja/app/Ninja/Mailers/UserMailer.php

<?php

namespace App\Ninja\Mailers;

use App\Models\Invitation;
use App\Models\Invoice;
use App\Models\Payment;
use App\Models\User;

/**
 * Class UserMailer
 */
class UserMailer extends Mailer
{
    /**
     * @param User $user
     * @param User|null $invitor
     */
    public function sendConfirmation(User $user, User $invitor = null)
    {
        if (!$user->email) {
            return;
        }

        $view = 'confirm';
        $subject = trans('texts.confirmation_subject');

        $data = [
            'user' => $user,
            'invitationMessage' => $invitor ? trans('texts.invitation_message', ['invitor' => $invitor->getDisplayName()]) : '',
        ];

        if ($invitor) {
            $fromEmail = $invitor->email;
            $fromName = $invitor->getDisplayName();
        } else {
            $fromEmail = CONTACT_EMAIL;
            $fromName = CONTACT_NAME;
        }

        $this->sendTo($user->email, $fromEmail, $fromName, $subject, $view, $data);
    }

    /**
     * @param User $user
     * @param Invoice $invoice
     * @param $notificationType
     * @param Payment|null $payment
     */
    public function sendNotification(
        User $user,
        Invoice $invoice,
        $notificationType,
        Payment $payment = null
    )
    {
        if (! $user->email || $user->cannot('view', $invoice)) {
            return;
        }

        $entityType = $invoice->getEntityType();
        $view = ($notificationType == 'approved' ? ENTITY_QUOTE : ENTITY_INVOICE) . "_{$notificationType}";
        $account = $user->account;
        $client = $invoice->client;

        $data = [
            'entityType' => $entityType,
            'clientName' => $client->getDisplayName(),
            'accountName' => $account->getDisplayName(),
            'userName' => $user->getDisplayName(),
            'invoiceAmount' => $account->formatMoney($invoice->getRequestedAmount(), $client),
            'invoiceNumber' => $invoice->invoice_number,
            'invoiceLink' => SITE_URL."/{$entityType}s/{$invoice->public_id}",
            'account' => $account,
        ];

        if ($payment) {
            $data['payment'] = $payment;
            $data['paymentAmount'] = $account->formatMoney($payment->amount, $client);
        }

        $subject = trans("texts.notification_{$entityType}_{$notificationType}_subject", [
            'invoice' => $invoice->invoice_number,
            'client' => $client->getDisplayName()
        ]);

        $this->sendTo($user->email, CONTACT_EMAIL, CONTACT_NAME, $subject, $view, $data);
    }

    /**
     * @param Invitation $invitation
     */
    public function sendEmailBounced(Invitation $invitation)
    {
        $user = $invitation->user;
        $account = $user->account;
        $invoice = $invitation->invoice;
        $entityType = $invoice->getEntityType();

        if (!$user->email) {
            return;
        }

        $subject = trans("texts.notification_{$entityType}_bounced_subject", ['invoice' => $invoice->invoice_number]);
        $view = 'email_bounced';
        $data = [
            'userName' => $user->getDisplayName(),
            'emailError' => $invitation->email_error,
            'entityType' => $entityType,
            'contactName' => $invitation->contact->getDisplayName(),
            'invoiceNumber' => $invoice->invoice_number,
        ];

        $this->sendTo($user->email, CONTACT_EMAIL, CONTACT_NAME, $subject, $view, $data);
    }
}