Make application name configurable

* Added app_name configuration option
* Extended `EngelsystemMailer` to prepend the application name to all mails

Closes #426

2 files changed, 42 insertions, 1 deletions

diff --git a/src/Mail/EngelsystemMailer.php b/src/Mail/EngelsystemMailer.php
index 17047cc8..81660681 100644
--- a/src/Mail/EngelsystemMailer.php
+++ b/src/Mail/EngelsystemMailer.php
@@ -10,6 +10,13 @@ class EngelsystemMailer extends Mailer
     /** @var Renderer|null */
     protected $view;
 
+    /** @var string */
+    protected $subjectPrefix = null;
+
+    /**
+     * @param SwiftMailer $mailer
+     * @param Renderer    $view
+     */
     public function __construct(SwiftMailer $mailer, Renderer $view = null)
     {
         parent::__construct($mailer);
@@ -32,4 +39,37 @@ class EngelsystemMailer extends Mailer
 
         return $this->send($to, $subject, $body);
     }
+
+    /**
+     * Send the mail
+     *
+     * @param string|string[] $to
+     * @param string          $subject
+     * @param string          $body
+     * @return int
+     */
+    public function send($to, string $subject, string $body): int
+    {
+        if ($this->subjectPrefix) {
+            $subject = sprintf('[%s] %s', $this->subjectPrefix, $subject);
+        }
+
+        return parent::send($to, $subject, $body);
+    }
+
+    /**
+     * @return string
+     */
+    public function getSubjectPrefix(): string
+    {
+        return $this->subjectPrefix;
+    }
+
+    /**
+     * @param string $subjectPrefix
+     */
+    public function setSubjectPrefix(string $subjectPrefix)
+    {
+        $this->subjectPrefix = $subjectPrefix;
+    }
 }
diff --git a/src/Mail/MailerServiceProvider.php b/src/Mail/MailerServiceProvider.php
index 989fee8f..70725afd 100644
--- a/src/Mail/MailerServiceProvider.php
+++ b/src/Mail/MailerServiceProvider.php
@@ -28,9 +28,10 @@ class MailerServiceProvider extends ServiceProvider
         $this->app->instance(SwiftMailer::class, $swiftMailer);
         $this->app->instance('mailer.swift', $swiftMailer);
 
-        /** @var Mailer $mailer */
+        /** @var EngelsystemMailer $mailer */
         $mailer = $this->app->make(EngelsystemMailer::class);
         $mailer->setFromAddress($mailConfig['from']['address']);
+        $mailer->setSubjectPrefix($config->get('app_name'));
         if (!empty($mailConfig['from']['name'])) {
             $mailer->setFromName($mailConfig['from']['name']);
         }