From 4647f615ac01ee82298f6f79e4efda30fb2fc326 Mon Sep 17 00:00:00 2001
From: SebastianKrupinski <krupinskis05@gmail.com>
Date: Tue, 30 Dec 2025 13:48:29 -0500
Subject: [PATCH 1/3] fix: send participation reply on fresh event

Signed-off-by: SebastianKrupinski <krupinskis05@gmail.com>
---
 lib/ITip/Broker.php                           | 25 ++++++---
 .../VObject/ITip/BrokerAttendeeReplyTest.php  | 52 +++++++++++++++++++
 2 files changed, 71 insertions(+), 6 deletions(-)

diff --git a/lib/ITip/Broker.php b/lib/ITip/Broker.php
index 6f0b1ed2f..fc3db753c 100644
--- a/lib/ITip/Broker.php
+++ b/lib/ITip/Broker.php
@@ -240,16 +240,29 @@ public function parseEvent($calendar, $userHref, $oldCalendar = null)
             $baseCalendar = $oldCalendar;
         }
 
+        // Check if the user is the organizer
         if (in_array($eventInfo['organizer'], $userHref)) {
             return $this->parseEventForOrganizer($baseCalendar, $eventInfo, $oldEventInfo);
-        } elseif ($oldCalendar) {
-            // We need to figure out if the user is an attendee, but we're only
-            // doing so if there's an oldCalendar, because we only want to
-            // process updates, not creation of new events.
-            foreach ($eventInfo['attendees'] as $attendee) {
-                if (in_array($attendee['href'], $userHref)) {
+        }
+
+        // Check if the user is an attendee
+        foreach ($eventInfo['attendees'] as $attendee) {
+            if (in_array($attendee['href'], $userHref)) {
+                // If this is a event update, we always generate a reply
+                if ($oldCalendar) {
                     return $this->parseEventForAttendee($baseCalendar, $eventInfo, $oldEventInfo, $attendee['href']);
                 }
+
+                // If this is a new event, we only generate a reply if the participation status is set
+                foreach ($attendee['instances'] as $instance) {
+                    if (isset($instance['partstat']) && 'NEEDS-ACTION' !== $instance['partstat']) {
+                        // Attendee has responded (ACCEPTED/DECLINED/TENTATIVE) - generate REPLY
+                        return $this->parseEventForAttendee($baseCalendar, $eventInfo, $oldEventInfo, $attendee['href']);
+                    }
+                }
+
+                // User is attendee but no response to process
+                break;
             }
         }
 
diff --git a/tests/VObject/ITip/BrokerAttendeeReplyTest.php b/tests/VObject/ITip/BrokerAttendeeReplyTest.php
index 284075adf..38b0f5100 100644
--- a/tests/VObject/ITip/BrokerAttendeeReplyTest.php
+++ b/tests/VObject/ITip/BrokerAttendeeReplyTest.php
@@ -1210,4 +1210,56 @@ public function testPartyCrasher()
 
         $this->parse($oldMessage, $newMessage, $expected);
     }
+
+    public function testNewEventWithReply(): void
+    {
+        $oldMessage = null;
+
+        $newMessage = <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+BEGIN:VEVENT
+UID:foobar
+SUMMARY:Team meeting
+SEQUENCE:1
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+DTSTART:20140716T120000Z
+END:VEVENT
+END:VCALENDAR
+ICS;
+
+        $version = \Sabre\VObject\Version::VERSION;
+
+        $expected = [
+            [
+                'uid' => 'foobar',
+                'method' => 'REPLY',
+                'component' => 'VEVENT',
+                'sender' => 'mailto:one@example.org',
+                'senderName' => 'One',
+                'recipient' => 'mailto:strunk@example.org',
+                'recipientName' => 'Strunk',
+                'message' => <<<ICS
+BEGIN:VCALENDAR
+VERSION:2.0
+PRODID:-//Sabre//Sabre VObject $version//EN
+CALSCALE:GREGORIAN
+METHOD:REPLY
+BEGIN:VEVENT
+UID:foobar
+DTSTAMP:**ANY**
+SEQUENCE:1
+DTSTART:20140716T120000Z
+SUMMARY:Team meeting
+ORGANIZER;CN=Strunk:mailto:strunk@example.org
+ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
+END:VEVENT
+END:VCALENDAR
+ICS,
+            ],
+        ];
+
+        $this->parse($oldMessage, $newMessage, $expected);
+    }
 }

From 5bdd38e8fcad60bbe41e987849500c3e313ff613 Mon Sep 17 00:00:00 2001
From: Phillip Davis <phil@jankaritech.com>
Date: Mon, 12 Jan 2026 15:23:17 +0545
Subject: [PATCH 2/3] tests: remove whitespace from VCALENDAR end

---
 tests/VObject/ITip/BrokerAttendeeReplyTest.php | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tests/VObject/ITip/BrokerAttendeeReplyTest.php b/tests/VObject/ITip/BrokerAttendeeReplyTest.php
index 38b0f5100..b8e7eb056 100644
--- a/tests/VObject/ITip/BrokerAttendeeReplyTest.php
+++ b/tests/VObject/ITip/BrokerAttendeeReplyTest.php
@@ -1203,7 +1203,6 @@ public function testPartyCrasher()
 ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
 END:VEVENT
 END:VCALENDAR
-
 ICS
             ],
         ];

From c990e14a3f8d09955deda56dad14ce76ec091602 Mon Sep 17 00:00:00 2001
From: Phillip Davis <phil@jankaritech.com>
Date: Mon, 12 Jan 2026 15:30:32 +0545
Subject: [PATCH 3/3] tests: remove comma for PHP 7.1 7.2 compatibility

---
 tests/VObject/ITip/BrokerAttendeeReplyTest.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tests/VObject/ITip/BrokerAttendeeReplyTest.php b/tests/VObject/ITip/BrokerAttendeeReplyTest.php
index b8e7eb056..8497fab1e 100644
--- a/tests/VObject/ITip/BrokerAttendeeReplyTest.php
+++ b/tests/VObject/ITip/BrokerAttendeeReplyTest.php
@@ -1255,7 +1255,7 @@ public function testNewEventWithReply(): void
 ATTENDEE;PARTSTAT=ACCEPTED;CN=One:mailto:one@example.org
 END:VEVENT
 END:VCALENDAR
-ICS,
+ICS
             ],
         ];