Added code to create group call from existing chat room

app/src/main/java/org/linphone/ui/call/viewmodel/CurrentCallViewModel.kt

@@ -218,7 +218,6 @@ class CurrentCallViewModel @UiThread constructor() : ViewModel() {
                     updateCallDuration()
                     Log.i("$TAG Call is ending, go to ended call fragment")
                     // Show that call was ended for a few seconds, then leave
-                    // TODO FIXME: do not show it when call is being ended due to user terminating the call
                     goToEndedCallEvent.postValue(Event(true))
                 }
             } else {

app/src/main/java/org/linphone/ui/main/chat/viewmodel/ConversationInfoViewModel.kt

@@ -29,9 +29,13 @@ import org.linphone.R
 import org.linphone.core.Address
 import org.linphone.core.ChatRoom
 import org.linphone.core.ChatRoomListenerStub
+import org.linphone.core.ConferenceScheduler
+import org.linphone.core.ConferenceSchedulerListenerStub
 import org.linphone.core.EventLog
 import org.linphone.core.Factory
 import org.linphone.core.Friend
+import org.linphone.core.Participant
+import org.linphone.core.ParticipantInfo
 import org.linphone.core.tools.Log
 import org.linphone.ui.main.chat.model.ParticipantModel
 import org.linphone.ui.main.contacts.model.ContactAvatarModel
@@ -181,6 +185,33 @@ class ConversationInfoViewModel @UiThread constructor() : ViewModel() {
         }
     }
 
+    private val conferenceSchedulerListener = object : ConferenceSchedulerListenerStub() {
+        override fun onStateChanged(
+            conferenceScheduler: ConferenceScheduler,
+            state: ConferenceScheduler.State
+        ) {
+            Log.i("$TAG Conference scheduler state is $state")
+            if (state == ConferenceScheduler.State.Ready) {
+                conferenceScheduler.removeListener(this)
+
+                val conferenceAddress = conferenceScheduler.info?.uri
+                if (conferenceAddress != null) {
+                    Log.i(
+                        "$TAG Conference info created, address is ${conferenceAddress.asStringUriOnly()}"
+                    )
+                    coreContext.startCall(conferenceAddress)
+                } else {
+                    Log.e("$TAG Conference info URI is null!")
+                    // TODO: notify error to user
+                }
+            } else if (state == ConferenceScheduler.State.Error) {
+                conferenceScheduler.removeListener(this)
+                Log.e("$TAG Failed to create group call!")
+                // TODO: notify error to user
+            }
+        }
+    }
+
     init {
         expandParticipants.value = true
     }
@@ -287,8 +318,8 @@ class ConversationInfoViewModel @UiThread constructor() : ViewModel() {
     @UiThread
     fun call() {
         coreContext.postOnCoreThread { core ->
-            if (LinphoneUtils.isChatRoomAGroup(chatRoom)) {
-                // TODO: group chat room call
+            if (LinphoneUtils.isChatRoomAGroup(chatRoom) && chatRoom.participants.size >= 2) {
+                createGroupCall()
             } else {
                 val firstParticipant = chatRoom.participants.firstOrNull()
                 val address = firstParticipant?.address
@@ -567,4 +598,40 @@ class ConversationInfoViewModel @UiThread constructor() : ViewModel() {
 
         participants.postValue(participantsList)
     }
+
+    @WorkerThread
+    private fun createGroupCall() {
+        val core = coreContext.core
+        val account = core.defaultAccount
+        if (account == null) {
+            Log.e(
+                "$TAG No default account found, can't create group call!"
+            )
+            return
+        }
+
+        val conferenceInfo = Factory.instance().createConferenceInfo()
+        conferenceInfo.organizer = account.params.identityAddress
+        conferenceInfo.subject = subject.value
+
+        val participants = arrayOfNulls<ParticipantInfo>(chatRoom.participants.size)
+        var index = 0
+        for (participant in chatRoom.participants) {
+            val info = Factory.instance().createParticipantInfo(participant.address)
+            // For meetings, all participants must have Speaker role
+            info?.role = Participant.Role.Speaker
+            participants[index] = info
+            index += 1
+        }
+        conferenceInfo.setParticipantInfos(participants)
+
+        Log.i(
+            "$TAG Creating group call with subject ${subject.value} and ${participants.size} participant(s)"
+        )
+        val conferenceScheduler = core.createConferenceScheduler()
+        conferenceScheduler.addListener(conferenceSchedulerListener)
+        conferenceScheduler.account = account
+        // Will trigger the conference creation/update automatically
+        conferenceScheduler.info = conferenceInfo
+    }
 }

app/src/main/java/org/linphone/ui/main/chat/viewmodel/ConversationViewModel.kt

@@ -30,9 +30,13 @@ import org.linphone.core.ChatMessage
 import org.linphone.core.ChatMessageReaction
 import org.linphone.core.ChatRoom
 import org.linphone.core.ChatRoomListenerStub
+import org.linphone.core.ConferenceScheduler
+import org.linphone.core.ConferenceSchedulerListenerStub
 import org.linphone.core.EventLog
 import org.linphone.core.Factory
 import org.linphone.core.Friend
+import org.linphone.core.Participant
+import org.linphone.core.ParticipantInfo
 import org.linphone.core.tools.Log
 import org.linphone.ui.main.chat.model.EventLogModel
 import org.linphone.ui.main.chat.model.MessageModel
@@ -280,6 +284,33 @@ class ConversationViewModel @UiThread constructor() : ViewModel() {
         }
     }
 
+    private val conferenceSchedulerListener = object : ConferenceSchedulerListenerStub() {
+        override fun onStateChanged(
+            conferenceScheduler: ConferenceScheduler,
+            state: ConferenceScheduler.State
+        ) {
+            Log.i("$TAG Conference scheduler state is $state")
+            if (state == ConferenceScheduler.State.Ready) {
+                conferenceScheduler.removeListener(this)
+
+                val conferenceAddress = conferenceScheduler.info?.uri
+                if (conferenceAddress != null) {
+                    Log.i(
+                        "$TAG Conference info created, address is ${conferenceAddress.asStringUriOnly()}"
+                    )
+                    coreContext.startCall(conferenceAddress)
+                } else {
+                    Log.e("$TAG Conference info URI is null!")
+                    // TODO: notify error to user
+                }
+            } else if (state == ConferenceScheduler.State.Error) {
+                conferenceScheduler.removeListener(this)
+                Log.e("$TAG Failed to create group call!")
+                // TODO: notify error to user
+            }
+        }
+    }
+
     init {
         searchBarVisible.value = false
         isUserScrollingUp.value = false
@@ -415,8 +446,8 @@ class ConversationViewModel @UiThread constructor() : ViewModel() {
     @UiThread
     fun startCall() {
         coreContext.postOnCoreThread { core ->
-            if (LinphoneUtils.isChatRoomAGroup(chatRoom)) {
-                // TODO: group chat room call
+            if (LinphoneUtils.isChatRoomAGroup(chatRoom) && chatRoom.participants.size >= 2) {
+                createGroupCall()
             } else {
                 val firstParticipant = chatRoom.participants.firstOrNull()
                 val address = firstParticipant?.address
@@ -736,4 +767,40 @@ class ConversationViewModel @UiThread constructor() : ViewModel() {
             composingLabel.postValue("")
         }
     }
+
+    @WorkerThread
+    private fun createGroupCall() {
+        val core = coreContext.core
+        val account = core.defaultAccount
+        if (account == null) {
+            Log.e(
+                "$TAG No default account found, can't create group call!"
+            )
+            return
+        }
+
+        val conferenceInfo = Factory.instance().createConferenceInfo()
+        conferenceInfo.organizer = account.params.identityAddress
+        conferenceInfo.subject = subject.value
+
+        val participants = arrayOfNulls<ParticipantInfo>(chatRoom.participants.size)
+        var index = 0
+        for (participant in chatRoom.participants) {
+            val info = Factory.instance().createParticipantInfo(participant.address)
+            // For meetings, all participants must have Speaker role
+            info?.role = Participant.Role.Speaker
+            participants[index] = info
+            index += 1
+        }
+        conferenceInfo.setParticipantInfos(participants)
+
+        Log.i(
+            "$TAG Creating group call with subject ${subject.value} and ${participants.size} participant(s)"
+        )
+        val conferenceScheduler = core.createConferenceScheduler()
+        conferenceScheduler.addListener(conferenceSchedulerListener)
+        conferenceScheduler.account = account
+        // Will trigger the conference creation/update automatically
+        conferenceScheduler.info = conferenceInfo
+    }
 }

app/src/main/res/layout/call_ended_fragment.xml

@@ -34,7 +34,6 @@
             android:layout_height="@dimen/call_top_bar_text_height"
             android:layout_marginStart="10dp"
             android:text="@string/call_ended"
-            android:visibility="@{viewModel.conferenceModel.isCurrentCallInConference ? View.GONE : View.VISIBLE}"
             app:layout_constraintStart_toEndOf="@id/back"
             app:layout_constraintTop_toTopOf="@id/back"
             app:layout_constraintBottom_toBottomOf="@id/back"/>