Voice Broadcast - Show start voice broadcast errors in a dialog

changelog.d/7485.wip

@@ -0,0 +1 @@
+[Voice Broadcast] Display an error dialog if the user fails to start a voice broadcast

library/ui-strings/src/main/res/values/strings.xml

@@ -3085,6 +3085,10 @@
     <string name="a11y_play_voice_broadcast">Play or resume voice broadcast</string>
     <string name="a11y_pause_voice_broadcast">Pause voice broadcast</string>
     <string name="a11y_voice_broadcast_buffering">Buffering</string>
+    <string name="error_voice_broadcast_unauthorized_title">Can’t start a new voice broadcast</string>
+    <string name="error_voice_broadcast_permission_denied_message">You don’t have the required permissions to start a voice broadcast in this room. Contact a room administrator to upgrade your permissions.</string>
+    <string name="error_voice_broadcast_blocked_by_someone_else_message">Someone else is already recording a voice broadcast. Wait for their voice broadcast to end to start a new one.</string>
+    <string name="error_voice_broadcast_already_in_progress_message">You are already recording a voice broadcast. Please end your current voice broadcast to start a new one.</string>
 
     <string name="upgrade_room_for_restricted">Anyone in %s will be able to find and join this room - no need to manually invite everyone. You’ll be able to change this in room settings anytime.</string>
     <string name="upgrade_room_for_restricted_no_param">Anyone in a parent space will be able to find and join this room - no need to manually invite everyone. You’ll be able to change this in room settings anytime.</string>

vector/src/main/java/im/vector/app/core/error/ErrorFormatter.kt

@@ -21,6 +21,8 @@ import im.vector.app.R
 import im.vector.app.core.resources.StringProvider
 import im.vector.app.features.call.dialpad.DialPadLookup
 import im.vector.app.features.voice.VoiceFailure
+import im.vector.app.features.voicebroadcast.VoiceBroadcastFailure
+import im.vector.app.features.voicebroadcast.VoiceBroadcastFailure.RecordingError
 import org.matrix.android.sdk.api.failure.Failure
 import org.matrix.android.sdk.api.failure.MatrixError
 import org.matrix.android.sdk.api.failure.MatrixIdFailure
@@ -135,6 +137,7 @@ class DefaultErrorFormatter @Inject constructor(
             is MatrixIdFailure.InvalidMatrixId ->
                 stringProvider.getString(R.string.login_signin_matrix_id_error_invalid_matrix_id)
             is VoiceFailure -> voiceMessageError(throwable)
+            is VoiceBroadcastFailure -> voiceBroadcastMessageError(throwable)
             is ActivityNotFoundException ->
                 stringProvider.getString(R.string.error_no_external_application_found)
             else -> throwable.localizedMessage
@@ -149,6 +152,14 @@ class DefaultErrorFormatter @Inject constructor(
         }
     }
 
+    private fun voiceBroadcastMessageError(throwable: VoiceBroadcastFailure): String {
+        return when (throwable) {
+            RecordingError.BlockedBySomeoneElse -> stringProvider.getString(R.string.error_voice_broadcast_blocked_by_someone_else_message)
+            RecordingError.NoPermission -> stringProvider.getString(R.string.error_voice_broadcast_permission_denied_message)
+            RecordingError.UserAlreadyBroadcasting -> stringProvider.getString(R.string.error_voice_broadcast_already_in_progress_message)
+        }
+    }
+
     private fun limitExceededError(error: MatrixError): String {
         val delay = error.retryAfterMillis
 

vector/src/main/java/im/vector/app/features/home/room/detail/TimelineFragment.kt

@@ -33,6 +33,7 @@ import android.widget.FrameLayout
 import android.widget.ImageView
 import android.widget.TextView
 import androidx.activity.addCallback
+import androidx.annotation.StringRes
 import androidx.appcompat.view.menu.MenuBuilder
 import androidx.constraintlayout.widget.ConstraintSet
 import androidx.core.content.ContextCompat
@@ -1320,8 +1321,12 @@ class TimelineFragment :
     }
 
     private fun displayRoomDetailActionFailure(result: RoomDetailViewEvents.ActionFailure) {
+        @StringRes val titleResId = when (result.action) {
+            RoomDetailAction.VoiceBroadcastAction.Recording.Start -> R.string.error_voice_broadcast_unauthorized_title
+            else -> R.string.dialog_title_error
+        }
         MaterialAlertDialogBuilder(requireActivity())
-                .setTitle(R.string.dialog_title_error)
+                .setTitle(titleResId)
                 .setMessage(errorFormatter.toHumanReadable(result.throwable))
                 .setPositiveButton(R.string.ok, null)
                 .show()

vector/src/main/java/im/vector/app/features/home/room/detail/TimelineViewModel.kt

@@ -604,7 +604,12 @@ class TimelineViewModel @AssistedInject constructor(
         if (room == null) return
         viewModelScope.launch {
             when (action) {
-                RoomDetailAction.VoiceBroadcastAction.Recording.Start -> voiceBroadcastHelper.startVoiceBroadcast(room.roomId)
+                RoomDetailAction.VoiceBroadcastAction.Recording.Start -> {
+                    voiceBroadcastHelper.startVoiceBroadcast(room.roomId).fold(
+                            { _viewEvents.post(RoomDetailViewEvents.ActionSuccess(action)) },
+                            { _viewEvents.post(RoomDetailViewEvents.ActionFailure(action, it)) },
+                    )
+                }
                 RoomDetailAction.VoiceBroadcastAction.Recording.Pause -> voiceBroadcastHelper.pauseVoiceBroadcast(room.roomId)
                 RoomDetailAction.VoiceBroadcastAction.Recording.Resume -> voiceBroadcastHelper.resumeVoiceBroadcast(room.roomId)
                 RoomDetailAction.VoiceBroadcastAction.Recording.Stop -> voiceBroadcastHelper.stopVoiceBroadcast(room.roomId)

vector/src/main/java/im/vector/app/features/voicebroadcast/VoiceBroadcastFailure.kt

@@ -0,0 +1,25 @@
+/*
+ * Copyright (c) 2022 New Vector Ltd
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package im.vector.app.features.voicebroadcast
+
+sealed class VoiceBroadcastFailure : Throwable() {
+    sealed class RecordingError : VoiceBroadcastFailure() {
+        object NoPermission : RecordingError()
+        object BlockedBySomeoneElse : RecordingError()
+        object UserAlreadyBroadcasting : RecordingError()
+    }
+}

vector/src/main/java/im/vector/app/features/voicebroadcast/recording/usecase/StartVoiceBroadcastUseCase.kt

@@ -21,18 +21,26 @@ import androidx.core.content.FileProvider
 import im.vector.app.core.resources.BuildMeta
 import im.vector.app.features.attachments.toContentAttachmentData
 import im.vector.app.features.voicebroadcast.VoiceBroadcastConstants
+import im.vector.app.features.voicebroadcast.VoiceBroadcastFailure
 import im.vector.app.features.voicebroadcast.model.MessageVoiceBroadcastInfoContent
 import im.vector.app.features.voicebroadcast.model.VoiceBroadcastChunk
 import im.vector.app.features.voicebroadcast.model.VoiceBroadcastState
 import im.vector.app.features.voicebroadcast.recording.VoiceBroadcastRecorder
 import im.vector.app.features.voicebroadcast.usecase.GetOngoingVoiceBroadcastsUseCase
 import im.vector.lib.multipicker.utils.toMultiPickerAudioType
+import org.jetbrains.annotations.VisibleForTesting
+import org.matrix.android.sdk.api.query.QueryStringValue
 import org.matrix.android.sdk.api.session.Session
+import org.matrix.android.sdk.api.session.events.model.EventType
 import org.matrix.android.sdk.api.session.events.model.RelationType
 import org.matrix.android.sdk.api.session.events.model.toContent
+import org.matrix.android.sdk.api.session.events.model.toModel
 import org.matrix.android.sdk.api.session.getRoom
 import org.matrix.android.sdk.api.session.room.Room
+import org.matrix.android.sdk.api.session.room.getStateEvent
+import org.matrix.android.sdk.api.session.room.model.PowerLevelsContent
 import org.matrix.android.sdk.api.session.room.model.relation.RelationDefaultContent
+import org.matrix.android.sdk.api.session.room.powerlevels.PowerLevelsHelper
 import timber.log.Timber
 import java.io.File
 import javax.inject.Inject
@@ -50,13 +58,8 @@ class StartVoiceBroadcastUseCase @Inject constructor(
 
         Timber.d("## StartVoiceBroadcastUseCase: Start voice broadcast requested")
 
-        val onGoingVoiceBroadcastEvents = getOngoingVoiceBroadcastsUseCase.execute(roomId)
-
-        if (onGoingVoiceBroadcastEvents.isEmpty()) {
-            startVoiceBroadcast(room)
-        } else {
-            Timber.d("## StartVoiceBroadcastUseCase: Cannot start voice broadcast: currentVoiceBroadcastEvents=$onGoingVoiceBroadcastEvents")
-        }
+        assertCanStartVoiceBroadcast(room)
+        startVoiceBroadcast(room)
     }
 
     private suspend fun startVoiceBroadcast(room: Room) {
@@ -102,4 +105,36 @@ class StartVoiceBroadcastUseCase @Inject constructor(
                 )
         )
     }
+
+    private fun assertCanStartVoiceBroadcast(room: Room) {
+        assertHasEnoughPowerLevels(room)
+        assertNoOngoingVoiceBroadcast(room)
+    }
+
+    @VisibleForTesting
+    fun assertHasEnoughPowerLevels(room: Room) {
+        val powerLevelsHelper = room.getStateEvent(EventType.STATE_ROOM_POWER_LEVELS, QueryStringValue.IsEmpty)
+                ?.content
+                ?.toModel<PowerLevelsContent>()
+                ?.let { PowerLevelsHelper(it) }
+
+        if (powerLevelsHelper?.isUserAllowedToSend(session.myUserId, true, VoiceBroadcastConstants.STATE_ROOM_VOICE_BROADCAST_INFO) != true) {
+            Timber.d("## StartVoiceBroadcastUseCase: Cannot start voice broadcast: no permission")
+            throw VoiceBroadcastFailure.RecordingError.NoPermission
+        }
+    }
+
+    @VisibleForTesting
+    fun assertNoOngoingVoiceBroadcast(room: Room) {
+        when {
+            voiceBroadcastRecorder?.state == VoiceBroadcastRecorder.State.Recording || voiceBroadcastRecorder?.state == VoiceBroadcastRecorder.State.Paused -> {
+                Timber.d("## StartVoiceBroadcastUseCase: Cannot start voice broadcast: another voice broadcast")
+                throw VoiceBroadcastFailure.RecordingError.UserAlreadyBroadcasting
+            }
+            getOngoingVoiceBroadcastsUseCase.execute(room.roomId).isNotEmpty() -> {
+                Timber.d("## StartVoiceBroadcastUseCase: Cannot start voice broadcast: user already broadcasting")
+                throw VoiceBroadcastFailure.RecordingError.BlockedBySomeoneElse
+            }
+        }
+    }
 }

vector/src/test/java/im/vector/app/features/voicebroadcast/usecase/StartVoiceBroadcastUseCaseTest.kt

@@ -26,15 +26,17 @@ import im.vector.app.test.fakes.FakeContext
 import im.vector.app.test.fakes.FakeRoom
 import im.vector.app.test.fakes.FakeRoomService
 import im.vector.app.test.fakes.FakeSession
-import io.mockk.clearAllMocks
 import io.mockk.coEvery
 import io.mockk.coVerify
 import io.mockk.every
+import io.mockk.justRun
 import io.mockk.mockk
 import io.mockk.slot
+import io.mockk.spyk
 import kotlinx.coroutines.test.runTest
 import org.amshove.kluent.shouldBe
 import org.amshove.kluent.shouldBeNull
+import org.junit.Before
 import org.junit.Test
 import org.matrix.android.sdk.api.session.events.model.Content
 import org.matrix.android.sdk.api.session.events.model.Event
@@ -51,14 +53,23 @@ class StartVoiceBroadcastUseCaseTest {
     private val fakeSession = FakeSession(fakeRoomService = FakeRoomService(fakeRoom))
     private val fakeVoiceBroadcastRecorder = mockk<VoiceBroadcastRecorder>(relaxed = true)
     private val fakeGetOngoingVoiceBroadcastsUseCase = mockk<GetOngoingVoiceBroadcastsUseCase>()
-    private val startVoiceBroadcastUseCase = StartVoiceBroadcastUseCase(
-            session = fakeSession,
-            voiceBroadcastRecorder = fakeVoiceBroadcastRecorder,
-            context = FakeContext().instance,
-            buildMeta = mockk(),
-            getOngoingVoiceBroadcastsUseCase = fakeGetOngoingVoiceBroadcastsUseCase,
+    private val startVoiceBroadcastUseCase = spyk(
+            StartVoiceBroadcastUseCase(
+                    session = fakeSession,
+                    voiceBroadcastRecorder = fakeVoiceBroadcastRecorder,
+                    context = FakeContext().instance,
+                    buildMeta = mockk(),
+                    getOngoingVoiceBroadcastsUseCase = fakeGetOngoingVoiceBroadcastsUseCase,
+            )
     )
 
+    @Before
+    fun setup() {
+        every { fakeRoom.roomId } returns A_ROOM_ID
+        justRun { startVoiceBroadcastUseCase.assertHasEnoughPowerLevels(fakeRoom) }
+        every { fakeVoiceBroadcastRecorder.state } returns VoiceBroadcastRecorder.State.Idle
+    }
+
     @Test
     fun `given a room id with potential several existing voice broadcast states when calling execute then the voice broadcast is started or not`() = runTest {
         val cases = VoiceBroadcastState.values()
@@ -83,7 +94,7 @@ class StartVoiceBroadcastUseCaseTest {
 
     private suspend fun testVoiceBroadcastStarted(voiceBroadcasts: List<VoiceBroadcast>) {
         // Given
-        clearAllMocks()
+        setup()
         givenVoiceBroadcasts(voiceBroadcasts)
         val voiceBroadcastInfoContentInterceptor = slot<Content>()
         coEvery { fakeRoom.stateService().sendStateEvent(any(), any(), capture(voiceBroadcastInfoContentInterceptor)) } coAnswers { AN_EVENT_ID }
@@ -106,7 +117,7 @@ class StartVoiceBroadcastUseCaseTest {
 
     private suspend fun testVoiceBroadcastNotStarted(voiceBroadcasts: List<VoiceBroadcast>) {
         // Given
-        clearAllMocks()
+        setup()
         givenVoiceBroadcasts(voiceBroadcasts)
 
         // When