fix: set proper defaults for attendees

CHANGELOG.md

@@ -8,6 +8,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Events shown in adjacent months are no longer dimmed ([#808])
 
+### Fixed
+- Fixed missing email notifications for attendees in some cases ([#135])
+- Fixed missing attendees list when using some specific providers ([#818])
+
 ## [1.6.2] - 2025-10-09
 ### Changed
 - Synchronized events with unspecified status are now treated as confirmed ([#761])
@@ -135,6 +139,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 [#34]: https://github.com/FossifyOrg/Calendar/issues/34
 [#49]: https://github.com/FossifyOrg/Calendar/issues/49
+[#135]: https://github.com/FossifyOrg/Calendar/issues/135
 [#138]: https://github.com/FossifyOrg/Calendar/issues/138
 [#148]: https://github.com/FossifyOrg/Calendar/issues/148
 [#196]: https://github.com/FossifyOrg/Calendar/issues/196
@@ -156,6 +161,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 [#732]: https://github.com/FossifyOrg/Calendar/issues/732
 [#761]: https://github.com/FossifyOrg/Calendar/issues/761
 [#808]: https://github.com/FossifyOrg/Calendar/issues/808
+[#818]: https://github.com/FossifyOrg/Calendar/issues/818
 
 [Unreleased]: https://github.com/FossifyOrg/Calendar/compare/1.6.2...HEAD
 [1.6.2]: https://github.com/FossifyOrg/Calendar/compare/1.6.1...1.6.2

app/src/main/kotlin/org/fossify/calendar/activities/EventActivity.kt

@@ -2361,12 +2361,27 @@ class EventActivity : SimpleActivity() {
         if (mEvent.id == null && isSavingEvent && attendees.isNotEmpty()) {
             val currentCalendar =
                 calDAVHelper.getCalDAVCalendars("", true).firstOrNull { it.id == mEventCalendarId }
-            mAvailableContacts.firstOrNull { it.email == currentCalendar?.ownerName }?.apply {
-                attendees = attendees.filter { it.email != currentCalendar?.ownerName }
-                    .toMutableList() as ArrayList<Attendee>
-                status = Attendees.ATTENDEE_STATUS_ACCEPTED
-                relationship = Attendees.RELATIONSHIP_ORGANIZER
-                attendees.add(this)
+            val organizerEmail = currentCalendar?.ownerName
+            val organizer = mAvailableContacts.firstOrNull { it.email.equals(organizerEmail, true) }
+            attendees = attendees
+                .filter { !it.email.equals(organizerEmail, true) }
+                .toMutableList() as ArrayList<Attendee>
+            if (organizer != null) {
+                organizer.status = Attendees.ATTENDEE_STATUS_ACCEPTED
+                organizer.relationship = Attendees.RELATIONSHIP_ORGANIZER
+                attendees.add(organizer)
+            } else if (!organizerEmail.isNullOrBlank()) {
+                attendees.add(
+                    Attendee(
+                        contactId = 0,
+                        name = "",
+                        email = organizerEmail,
+                        status = Attendees.ATTENDEE_STATUS_ACCEPTED,
+                        photoUri = "",
+                        isMe = true,
+                        relationship = Attendees.RELATIONSHIP_ORGANIZER
+                    )
+                )
             }
         }
 

app/src/main/kotlin/org/fossify/calendar/helpers/CalDAVHelper.kt

@@ -465,7 +465,15 @@ class CalDAVHelper(val context: Context) {
                 put(Attendees.ATTENDEE_NAME, it.name)
                 put(Attendees.ATTENDEE_EMAIL, it.email)
                 put(Attendees.ATTENDEE_STATUS, it.status)
-                put(Attendees.ATTENDEE_RELATIONSHIP, it.relationship)
+                put(
+                    Attendees.ATTENDEE_RELATIONSHIP,
+                    if (it.relationship == Attendees.RELATIONSHIP_ORGANIZER) {
+                        it.relationship
+                    } else {
+                        Attendees.RELATIONSHIP_ATTENDEE
+                    }
+                )
+                put(Attendees.ATTENDEE_TYPE, Attendees.TYPE_REQUIRED)
                 put(Attendees.EVENT_ID, event.getCalDAVEventId())
             }