New cron job for bills.

app/Handlers/Events/BillEventHandler.php

@@ -0,0 +1,41 @@
+<?php
+
+namespace FireflyIII\Handlers\Events;
+
+use FireflyIII\Events\WarnUserAboutBill;
+use FireflyIII\Mail\BillWarningMail;
+use Log;
+use Mail;
+
+/**
+ * Class BillEventHandler
+ */
+class BillEventHandler
+{
+    /**
+     * @param WarnUserAboutBill $event
+     * @return void
+     */
+    public function warnAboutBill(WarnUserAboutBill $event): void
+    {
+        $bill      = $event->bill;
+        $field     = $event->field;
+        $diff      = $event->diff;
+        $user      = $bill->user;
+        $address   = $user->email;
+        $ipAddress = request()?->ip();
+
+        // see if user has alternative email address:
+        $pref = app('preferences')->getForUser($user, 'remote_guard_alt_email');
+        if (null !== $pref) {
+            $address = $pref->data;
+        }
+
+        // send message:
+        Mail::to($address)->send(new BillWarningMail($bill, $field, $diff, $ipAddress));
+
+
+        Log::debug('warnAboutBill');
+    }
+
+}