change (composer suggestions) : remove feature flag

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/messagecomposer/MessageComposerPresenter.kt

@@ -23,6 +23,7 @@ import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.rememberUpdatedState
 import androidx.compose.runtime.saveable.rememberSaveable
 import androidx.compose.runtime.setValue
+import androidx.compose.runtime.snapshots.SnapshotStateList
 import androidx.media3.common.MimeTypes
 import androidx.media3.common.util.UnstableApi
 import dagger.assisted.Assisted
@@ -84,11 +85,13 @@ import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.FlowPreview
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.collect
 import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.debounce
 import kotlinx.coroutines.flow.filter
 import kotlinx.coroutines.flow.merge
+import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.launch
 import timber.log.Timber
 import kotlin.time.Duration.Companion.seconds
@@ -135,7 +138,6 @@ class MessageComposerPresenter @AssistedInject constructor(
     @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
     internal var showTextFormatting: Boolean by mutableStateOf(false)
 
-    @OptIn(FlowPreview::class)
     @SuppressLint("UnsafeOptInUsageError")
     @Composable
     override fun present(): MessageComposerState {
@@ -148,12 +150,6 @@ class MessageComposerPresenter @AssistedInject constructor(
             richTextEditorState.isReadyToProcessActions = true
         }
         val markdownTextEditorState = rememberMarkdownTextEditorState(initialText = null, initialFocus = false)
-        var isMentionsEnabled by remember { mutableStateOf(false) }
-        var isRoomAliasSuggestionsEnabled by remember { mutableStateOf(false) }
-        LaunchedEffect(Unit) {
-            isMentionsEnabled = featureFlagService.isFeatureEnabled(FeatureFlags.Mentions)
-            isRoomAliasSuggestionsEnabled = featureFlagService.isFeatureEnabled(FeatureFlags.RoomAliasSuggestions)
-        }
 
         val cameraPermissionState = cameraPermissionPresenter.present()
 
@@ -187,8 +183,6 @@ class MessageComposerPresenter @AssistedInject constructor(
 
         val sendTypingNotifications by sessionPreferencesStore.isSendTypingNotificationsEnabled().collectAsState(initial = true)
 
-        val roomAliasSuggestions by roomAliasSuggestionsDataSource.getAllRoomAliasSuggestions().collectAsState(initial = emptyList())
-
         LaunchedEffect(cameraPermissionState.permissionGranted) {
             if (cameraPermissionState.permissionGranted) {
                 when (pendingEvent) {
@@ -201,35 +195,7 @@ class MessageComposerPresenter @AssistedInject constructor(
         }
 
         val suggestions = remember { mutableStateListOf<ResolvedSuggestion>() }
-        LaunchedEffect(isMentionsEnabled) {
+        ResolveSuggestionsEffect(suggestions)
-            if (!isMentionsEnabled) return@LaunchedEffect
-            val currentUserId = room.sessionId
-
-            suspend fun canSendRoomMention(): Boolean {
-                val userCanSendAtRoom = room.canUserTriggerRoomNotification(currentUserId).getOrDefault(false)
-                return !room.isDm() && userCanSendAtRoom
-            }
-
-            // This will trigger a search immediately when `@` is typed
-            val mentionStartTrigger = suggestionSearchTrigger.filter { it?.text.isNullOrEmpty() }
-            // This will start a search when the user changes the text after the `@` with a debounce to prevent too much wasted work
-            val mentionCompletionTrigger = suggestionSearchTrigger.debounce(0.3.seconds).filter { !it?.text.isNullOrEmpty() }
-            merge(mentionStartTrigger, mentionCompletionTrigger)
-                .combine(room.membersStateFlow) { suggestion, roomMembersState ->
-                    suggestions.clear()
-                    val result = suggestionsProcessor.process(
-                        suggestion = suggestion,
-                        roomMembersState = roomMembersState,
-                        roomAliasSuggestions = if (isRoomAliasSuggestionsEnabled) roomAliasSuggestions else emptyList(),
-                        currentUserId = currentUserId,
-                        canSendRoomMention = ::canSendRoomMention,
-                    )
-                    if (result.isNotEmpty()) {
-                        suggestions.addAll(result)
-                    }
-                }
-                .collect()
-        }
 
         DisposableEffect(Unit) {
             // Declare that the user is not typing anymore when the composer is disposed
@@ -409,6 +375,45 @@ class MessageComposerPresenter @AssistedInject constructor(
         )
     }
 
+    @OptIn(FlowPreview::class)
+    @Composable
+    private fun ResolveSuggestionsEffect(
+        suggestions: SnapshotStateList<ResolvedSuggestion>,
+    ) {
+        LaunchedEffect(Unit) {
+            val currentUserId = room.sessionId
+
+            suspend fun canSendRoomMention(): Boolean {
+                val userCanSendAtRoom = room.canUserTriggerRoomNotification(currentUserId).getOrDefault(false)
+                return !room.isDm() && userCanSendAtRoom
+            }
+
+            // This will trigger a search immediately when `@` is typed
+            val mentionStartTrigger = suggestionSearchTrigger.filter { it?.text.isNullOrEmpty() }
+            // This will start a search when the user changes the text after the `@` with a debounce to prevent too much wasted work
+            val mentionCompletionTrigger = suggestionSearchTrigger.debounce(0.3.seconds).filter { !it?.text.isNullOrEmpty() }
+
+            val mentionTriggerFlow = merge(mentionStartTrigger, mentionCompletionTrigger)
+
+            val roomAliasSuggestionsFlow = roomAliasSuggestionsDataSource
+                .getAllRoomAliasSuggestions()
+                .stateIn(this, SharingStarted.Lazily, emptyList())
+
+            combine(mentionTriggerFlow, room.membersStateFlow, roomAliasSuggestionsFlow) { suggestion, roomMembersState, roomAliasSuggestions ->
+                    val result = suggestionsProcessor.process(
+                        suggestion = suggestion,
+                        roomMembersState = roomMembersState,
+                        roomAliasSuggestions = roomAliasSuggestions,
+                        currentUserId = currentUserId,
+                        canSendRoomMention = ::canSendRoomMention,
+                    )
+                    suggestions.clear()
+                    suggestions.addAll(result)
+                }
+                .collect()
+        }
+    }
+
     private fun CoroutineScope.sendMessage(
         markdownTextEditorState: MarkdownTextEditorState,
         richTextEditorState: RichTextEditorState,

features/messages/impl/src/test/kotlin/io/element/android/features/messages/impl/messagecomposer/MessageComposerPresenterTest.kt

@@ -61,7 +61,6 @@ import io.element.android.libraries.matrix.test.A_USER_ID
 import io.element.android.libraries.matrix.test.A_USER_ID_2
 import io.element.android.libraries.matrix.test.A_USER_ID_3
 import io.element.android.libraries.matrix.test.A_USER_ID_4
-import io.element.android.libraries.matrix.test.core.aBuildMeta
 import io.element.android.libraries.matrix.test.permalink.FakePermalinkBuilder
 import io.element.android.libraries.matrix.test.permalink.FakePermalinkParser
 import io.element.android.libraries.matrix.test.room.FakeMatrixRoom
@@ -1011,16 +1010,10 @@ class MessageComposerPresenterTest {
             )
             givenRoomInfo(aRoomInfo(isDirect = false))
         }
-        val flagsService = FakeFeatureFlagService(
+        val presenter = createPresenter(this, room)
-            mapOf(
-                FeatureFlags.Mentions.key to true,
-            )
-        )
-        val presenter = createPresenter(this, room, featureFlagService = flagsService)
         moleculeFlow(RecompositionMode.Immediate) {
             presenter.present()
         }.test {
-            skipItems(1)
             val initialState = awaitItem()
 
             // A null suggestion (no suggestion was received) returns nothing
@@ -1078,16 +1071,10 @@ class MessageComposerPresenterTest {
                 )
             )
         }
-        val flagsService = FakeFeatureFlagService(
+        val presenter = createPresenter(this, room)
-            mapOf(
-                FeatureFlags.Mentions.key to true,
-            )
-        )
-        val presenter = createPresenter(this, room, featureFlagService = flagsService)
         moleculeFlow(RecompositionMode.Immediate) {
             presenter.present()
         }.test {
-            skipItems(1)
             val initialState = awaitItem()
 
             // An empty suggestion returns the joined members that are not the current user, but not the room
@@ -1293,11 +1280,11 @@ class MessageComposerPresenterTest {
         moleculeFlow(RecompositionMode.Immediate) {
             presenter.present()
         }.test {
-            awaitFirstItem().also { state ->
+            skipItems(2)
+            awaitItem().also { state ->
                 assertThat(state.textEditorState.messageMarkdown(permalinkBuilder)).isEqualTo(A_MESSAGE)
                 assertThat(state.textEditorState.messageHtml()).isNull()
             }
-
             assert(loadDraftLambda)
                 .isCalledOnce()
                 .with(value(A_ROOM_ID), value(false))
@@ -1327,7 +1314,8 @@ class MessageComposerPresenterTest {
         moleculeFlow(RecompositionMode.Immediate) {
             presenter.present()
         }.test {
-            awaitFirstItem().also { state ->
+            skipItems(1)
+            awaitItem().also { state ->
                 assertThat(state.showTextFormatting).isTrue()
                 assertThat(state.textEditorState.messageMarkdown(permalinkBuilder)).isEqualTo(A_MESSAGE)
                 assertThat(state.textEditorState.messageHtml()).isEqualTo(A_MESSAGE)
@@ -1360,7 +1348,8 @@ class MessageComposerPresenterTest {
         moleculeFlow(RecompositionMode.Immediate) {
             presenter.present()
         }.test {
-            awaitFirstItem().also { state ->
+            skipItems(2)
+            awaitItem().also { state ->
                 assertThat(state.showTextFormatting).isFalse()
                 assertThat(state.mode).isEqualTo(anEditMode())
                 assertThat(state.textEditorState.messageMarkdown(permalinkBuilder)).isEqualTo(A_MESSAGE)
@@ -1406,7 +1395,8 @@ class MessageComposerPresenterTest {
         moleculeFlow(RecompositionMode.Immediate) {
             presenter.present()
         }.test {
-            awaitFirstItem().also { state ->
+            skipItems(2)
+            awaitItem().also { state ->
                 assertThat(state.showTextFormatting).isFalse()
                 assertThat(state.mode).isEqualTo(aReplyMode())
                 assertThat(state.textEditorState.messageMarkdown(permalinkBuilder)).isEqualTo(A_MESSAGE)
@@ -1580,8 +1570,7 @@ class MessageComposerPresenterTest {
     }
 
     private suspend fun <T> ReceiveTurbine<T>.awaitFirstItem(): T {
-        // Skip 2 item if Mentions feature is enabled, else 1
+        skipItems(1)
-        skipItems(if (FeatureFlags.Mentions.defaultValue(aBuildMeta())) 2 else 1)
         return awaitItem()
     }
 }

features/messages/impl/src/test/kotlin/io/element/android/features/messages/impl/messagecomposer/suggestions/SuggestionsProcessorTest.kt

@@ -133,7 +133,7 @@ class SuggestionsProcessorTest {
     }
 
     @Test
-    fun `processing Room suggestion with aliases will return a suggestion`() = runTest {
+    fun `processing Room suggestion with aliases will return a suggestion when matching on alias`() = runTest {
         val aRoomSummary = aRoomSummary(canonicalAlias = A_ROOM_ALIAS)
         val result = suggestionsProcessor.process(
             suggestion = aRoomSuggestion("ali"),
@@ -171,7 +171,56 @@ class SuggestionsProcessorTest {
                 RoomAliasSuggestion(
                     roomAlias = A_ROOM_ALIAS,
                     roomId = aRoomSummary.roomId,
-                    roomName = aRoomSummary.info.name,
+                    roomName = "Element",
+                    roomAvatarUrl = aRoomSummary.info.avatarUrl,
+                )
+            ),
+            currentUserId = A_USER_ID,
+            canSendRoomMention = { true },
+        )
+        assertThat(result).isEmpty()
+    }
+
+    @Test
+    fun `processing Room suggestion will return a suggestion when matching on room name`() = runTest {
+        val aRoomSummary = aRoomSummary(canonicalAlias = A_ROOM_ALIAS)
+        val result = suggestionsProcessor.process(
+            suggestion = aRoomSuggestion("lement"),
+            roomMembersState = MatrixRoomMembersState.Ready(persistentListOf()),
+            roomAliasSuggestions = listOf(
+                RoomAliasSuggestion(
+                    roomAlias = A_ROOM_ALIAS,
+                    roomId = aRoomSummary.roomId,
+                    roomName = "Element",
+                    roomAvatarUrl = aRoomSummary.info.avatarUrl,
+                )
+            ),
+            currentUserId = A_USER_ID,
+            canSendRoomMention = { true },
+        )
+        assertThat(result).isEqualTo(
+            listOf(
+                ResolvedSuggestion.Alias(
+                    roomAlias = A_ROOM_ALIAS,
+                    roomId = aRoomSummary.roomId,
+                    roomName = "Element",
+                    roomAvatarUrl = aRoomSummary.info.avatarUrl,
+                )
+            )
+        )
+    }
+
+    @Test
+    fun `processing Room suggestion will not return a suggestion when room has no name`() = runTest {
+        val aRoomSummary = aRoomSummary(canonicalAlias = A_ROOM_ALIAS)
+        val result = suggestionsProcessor.process(
+            suggestion = aRoomSuggestion("lement"),
+            roomMembersState = MatrixRoomMembersState.Ready(persistentListOf()),
+            roomAliasSuggestions = listOf(
+                RoomAliasSuggestion(
+                    roomAlias = A_ROOM_ALIAS,
+                    roomId = aRoomSummary.roomId,
+                    roomName = null,
                     roomAvatarUrl = aRoomSummary.info.avatarUrl,
                 )
             ),

features/preferences/impl/src/test/kotlin/io/element/android/features/preferences/impl/developer/DeveloperSettingsPresenterTest.kt

@@ -80,7 +80,7 @@ class DeveloperSettingsPresenterTest {
         presenter.test {
             skipItems(2)
             awaitItem().also { state ->
-                val feature = state.features.first()
+                val feature = state.features.first { !it.isEnabled }
                 state.eventSink(DeveloperSettingsEvents.UpdateEnabledFeature(feature, !feature.isEnabled))
             }
             awaitItem().also { state ->

libraries/featureflag/api/src/main/kotlin/io/element/android/libraries/featureflag/api/FeatureFlags.kt

@@ -54,20 +54,6 @@ enum class FeatureFlags(
         defaultValue = { true },
         isFinished = true,
     ),
-    Mentions(
-        key = "feature.mentions",
-        title = "Mentions",
-        description = "Type `@` to get mention suggestions and insert them",
-        defaultValue = { true },
-        isFinished = false,
-    ),
-    RoomAliasSuggestions(
-        key = "feature.roomAliasSuggestions",
-        title = "Room alias suggestions",
-        description = "Type `#` to get room alias suggestions and insert them",
-        defaultValue = { false },
-        isFinished = false,
-    ),
     MarkAsUnread(
         key = "feature.markAsUnread",
         title = "Mark as unread",