When removing a meeting you organized, send a cancel ICS

app/src/main/java/org/linphone/activities/main/conference/viewmodels/ConferenceSchedulingViewModel.kt

@@ -77,10 +77,10 @@ class ConferenceSchedulingViewModel : ContactsSelectionViewModel() {
     private val listener = object : ConferenceSchedulerListenerStub() {
         override fun onStateChanged(
             conferenceScheduler: ConferenceScheduler,
-            state: ConferenceSchedulerState
+            state: ConferenceScheduler.State
         ) {
             Log.i("[Conference Creation] Conference scheduler state is $state")
-            if (state == ConferenceSchedulerState.Ready) {
+            if (state == ConferenceScheduler.State.Ready) {
                 val conferenceAddress = conferenceScheduler.info?.uri
                 Log.i("[Conference Creation] Conference info created, address will be ${conferenceAddress?.asStringUriOnly()}")
                 conferenceAddress ?: return
@@ -90,21 +90,12 @@ class ConferenceSchedulingViewModel : ContactsSelectionViewModel() {
                 if (scheduleForLater.value == true && sendInviteViaChat.value == true) {
                     // Send conference info even when conf is not scheduled for later
                     // as the conference server doesn't invite participants automatically
-                    val chatRoomParams = coreContext.core.createDefaultChatRoomParams()
-                    chatRoomParams.isGroupEnabled = false
-                    if (LinphoneUtils.isEndToEndEncryptedChatAvailable()) {
-                        chatRoomParams.backend = ChatRoomBackend.FlexisipChat
-                        chatRoomParams.isEncryptionEnabled = true
-                    } else {
-                        chatRoomParams.backend = ChatRoomBackend.Basic
-                        chatRoomParams.isEncryptionEnabled = false
-                    }
-                    chatRoomParams.subject = subject.value
+                    val chatRoomParams = LinphoneUtils.getConferenceInvitationsChatRoomParams()
                     conferenceScheduler.sendInvitations(chatRoomParams)
                 } else {
                     // Will be done in coreListener
                 }
-            } else if (state == ConferenceSchedulerState.Error) {
+            } else if (state == ConferenceScheduler.State.Error) {
                 Log.e("[Conference Creation] Failed to create conference!")
                 conferenceCreationInProgress.value = false
                 onMessageToNotifyEvent.value = Event(R.string.conference_creation_failed)
@@ -115,7 +106,6 @@ class ConferenceSchedulingViewModel : ContactsSelectionViewModel() {
             conferenceScheduler: ConferenceScheduler,
             failedInvitations: Array<out Address>?
         ) {
-            Log.i("[Conference Creation] Conference information successfully sent to all participants")
             conferenceCreationInProgress.value = false
 
             if (failedInvitations?.isNotEmpty() == true) {
@@ -123,6 +113,8 @@ class ConferenceSchedulingViewModel : ContactsSelectionViewModel() {
                     Log.e("[Conference Creation] Conference information wasn't sent to participant ${address.asStringUriOnly()}")
                 }
                 onMessageToNotifyEvent.value = Event(R.string.conference_schedule_info_not_sent_to_participant)
+            } else {
+                Log.i("[Conference Creation] Conference information successfully sent to all participants")
             }
 
             val conferenceAddress = conferenceScheduler.info?.uri

app/src/main/java/org/linphone/activities/main/conference/viewmodels/ScheduledConferencesViewModel.kt

@@ -23,16 +23,21 @@ import androidx.lifecycle.MutableLiveData
 import androidx.lifecycle.ViewModel
 import org.linphone.LinphoneApplication.Companion.coreContext
 import org.linphone.activities.main.conference.data.ScheduledConferenceData
-import org.linphone.core.ConferenceInfo
-import org.linphone.core.Core
-import org.linphone.core.CoreListenerStub
+import org.linphone.core.*
 import org.linphone.core.tools.Log
+import org.linphone.utils.LinphoneUtils
 
 class ScheduledConferencesViewModel : ViewModel() {
     val conferences = MutableLiveData<ArrayList<ScheduledConferenceData>>()
 
     val showTerminated = MutableLiveData<Boolean>()
 
+    private val conferenceScheduler: ConferenceScheduler by lazy {
+        val scheduler = coreContext.core.createConferenceScheduler()
+        scheduler.addListener(conferenceListener)
+        scheduler
+    }
+
     private val listener = object : CoreListenerStub() {
         override fun onConferenceInfoReceived(core: Core, conferenceInfo: ConferenceInfo) {
             Log.i("[Scheduled Conferences] New conference info received")
@@ -40,6 +45,33 @@ class ScheduledConferencesViewModel : ViewModel() {
         }
     }
 
+    private val conferenceListener = object : ConferenceSchedulerListenerStub() {
+        override fun onStateChanged(
+            conferenceScheduler: ConferenceScheduler,
+            state: ConferenceScheduler.State
+        ) {
+            Log.i("[Scheduled Conferences] Conference scheduler state is $state")
+            if (state == ConferenceScheduler.State.Ready) {
+                Log.i("[Scheduled Conferences] Conference ${conferenceScheduler.info?.subject} cancelled")
+                val chatRoomParams = LinphoneUtils.getConferenceInvitationsChatRoomParams()
+                conferenceScheduler.sendInvitations(chatRoomParams) // Send cancel ICS
+            }
+        }
+
+        override fun onInvitationsSent(
+            conferenceScheduler: ConferenceScheduler,
+            failedInvitations: Array<out Address>?
+        ) {
+            if (failedInvitations?.isNotEmpty() == true) {
+                for (address in failedInvitations) {
+                    Log.e("[Scheduled Conferences] Conference cancelled ICS wasn't sent to participant ${address.asStringUriOnly()}")
+                }
+            } else {
+                Log.i("[Scheduled Conferences] Conference cancelled ICS successfully sent to all participants")
+            }
+        }
+    }
+
     init {
         coreContext.core.addListener(listener)
 
@@ -51,6 +83,7 @@ class ScheduledConferencesViewModel : ViewModel() {
     override fun onCleared() {
         coreContext.core.removeListener(listener)
         conferences.value.orEmpty().forEach(ScheduledConferenceData::destroy)
+
         super.onCleared()
     }
 
@@ -64,6 +97,11 @@ class ScheduledConferencesViewModel : ViewModel() {
         conferenceInfoList.addAll(conferences.value.orEmpty())
         conferenceInfoList.remove(data)
 
+        if (data.conferenceInfo.state != ConferenceInfo.State.Cancelled && data.canEdit.value == true) {
+            Log.i("[Scheduled Conferences] Cancelling conference ${data.conferenceInfo.subject}")
+            conferenceScheduler.cancelConference(data.conferenceInfo)
+        }
+
         data.delete()
         data.destroy()
         conferences.value = conferenceInfoList

app/src/main/java/org/linphone/utils/LinphoneUtils.kt

@@ -140,6 +140,20 @@ class LinphoneUtils {
                 ?: core.createChatRoom(params, defaultAccount?.params?.identityAddress, participants)
         }
 
+        fun getConferenceInvitationsChatRoomParams(): ChatRoomParams {
+            val chatRoomParams = coreContext.core.createDefaultChatRoomParams()
+            chatRoomParams.isGroupEnabled = false
+            if (isEndToEndEncryptedChatAvailable()) {
+                chatRoomParams.backend = ChatRoomBackend.FlexisipChat
+                chatRoomParams.isEncryptionEnabled = true
+            } else {
+                chatRoomParams.backend = ChatRoomBackend.Basic
+                chatRoomParams.isEncryptionEnabled = false
+            }
+            chatRoomParams.subject = "Meeting invitation" // Won't be used
+            return chatRoomParams
+        }
+
         fun deleteFilesAttachedToEventLog(eventLog: EventLog) {
             if (eventLog.type == EventLog.Type.ConferenceChatMessage) {
                 val message = eventLog.chatMessage