Fix tests and improve structure of CustomReactionState

- Fix tests
- Improve structure of CustomReactionState

app/src/main/kotlin/io/element/android/x/di/AppModule.kt

@@ -23,6 +23,8 @@ import androidx.preference.PreferenceManager
 import com.squareup.anvil.annotations.ContributesTo
 import dagger.Module
 import dagger.Provides
+import io.element.android.features.messages.impl.timeline.components.customreaction.DefaultEmojibaseProvider
+import io.element.android.features.messages.impl.timeline.components.customreaction.EmojibaseProvider
 import io.element.android.libraries.core.coroutine.CoroutineDispatchers
 import io.element.android.libraries.core.meta.BuildMeta
 import io.element.android.libraries.core.meta.BuildType
@@ -105,4 +107,10 @@ object AppModule {
     fun provideSnackbarDispatcher(): SnackbarDispatcher {
         return SnackbarDispatcher()
     }
+
+    @Provides
+    @SingleIn(AppScope::class)
+    fun providesEmojibaseProvider(@ApplicationContext context: Context): EmojibaseProvider {
+        return DefaultEmojibaseProvider(context)
+    }
 }

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

@@ -67,8 +67,7 @@ fun aMessagesState() = MessagesState(
     ),
     actionListState = anActionListState(),
     customReactionState = CustomReactionState(
-        selectedEventId = null,
-        emojiProvider = Async.Uninitialized,
+        target = CustomReactionState.Target.None,
         eventSink = {},
         selectedEmoji = persistentSetOf(),
     ),

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

@@ -200,11 +200,9 @@ fun MessagesView(
 
     CustomReactionBottomSheet(
         state = state.customReactionState,
-        onEmojiSelected = { emoji ->
-            state.customReactionState.selectedEventId?.let { eventId ->
+        onEmojiSelected = { eventId, emoji ->
                 state.eventSink(MessagesEvents.ToggleReaction(emoji.unicode, eventId))
                 state.customReactionState.eventSink(CustomReactionEvents.DismissCustomReactionSheet)
-            }
         }
     )
 

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/components/customreaction/CustomReactionBottomSheet.kt

@@ -23,33 +23,35 @@ import androidx.compose.runtime.Composable
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Modifier
 import io.element.android.emojibasebindings.Emoji
+import io.element.android.features.messages.impl.actionlist.ActionListState
 import io.element.android.libraries.designsystem.theme.components.ModalBottomSheet
 import io.element.android.libraries.designsystem.theme.components.hide
+import io.element.android.libraries.matrix.api.core.EventId
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
 fun CustomReactionBottomSheet(
     state: CustomReactionState,
-    onEmojiSelected: (Emoji) -> Unit,
+    onEmojiSelected: (EventId, Emoji) -> Unit,
     modifier: Modifier = Modifier,
 ) {
     val sheetState = rememberModalBottomSheetState()
     val coroutineScope = rememberCoroutineScope()
+    val target = state.target as? CustomReactionState.Target.Success
 
     fun onDismiss() {
         state.eventSink(CustomReactionEvents.DismissCustomReactionSheet)
     }
 
     fun onEmojiSelectedDismiss(emoji: Emoji) {
+        if (target?.event?.eventId == null) return
         sheetState.hide(coroutineScope) {
             state.eventSink(CustomReactionEvents.DismissCustomReactionSheet)
-            onEmojiSelected(emoji)
+            onEmojiSelected(target.event.eventId, emoji)
         }
     }
 
-    val emojiProvider = state.emojiProvider.dataOrNull()
-    val selectedEventId = state.selectedEventId
-    if (emojiProvider != null && selectedEventId != null) {
+    if (target?.emojibaseStore != null && target.event.eventId != null) {
         ModalBottomSheet(
             onDismissRequest = ::onDismiss,
             sheetState = sheetState,
@@ -57,7 +59,7 @@ fun CustomReactionBottomSheet(
         ) {
             EmojiPicker(
                 onEmojiSelected = ::onEmojiSelectedDismiss,
-                emojiProvider = emojiProvider,
+                emojibaseStore = target.emojibaseStore,
                 selectedEmojis = state.selectedEmoji,
                 modifier = Modifier.fillMaxSize(),
             )

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/components/customreaction/CustomReactionPresenter.kt

@@ -17,42 +17,46 @@
 package io.element.android.features.messages.impl.timeline.components.customreaction
 
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.MutableState
+import androidx.compose.runtime.derivedStateOf
 import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.runtime.setValue
-import androidx.compose.ui.platform.LocalContext
-import io.element.android.emojibasebindings.EmojibaseDatasource
 import io.element.android.emojibasebindings.EmojibaseStore
+import io.element.android.features.messages.impl.actionlist.ActionListState
 import io.element.android.libraries.architecture.Async
 import io.element.android.libraries.architecture.Presenter
 import kotlinx.coroutines.launch
 import io.element.android.features.messages.impl.timeline.model.TimelineItem
+import io.element.android.features.messages.impl.timeline.model.event.canReact
 import kotlinx.collections.immutable.toImmutableSet
 import javax.inject.Inject
 
-class CustomReactionPresenter @Inject constructor() : Presenter<CustomReactionState> {
+class CustomReactionPresenter @Inject constructor(
+    private val emojibaseProvider: EmojibaseProvider
+) : Presenter<CustomReactionState> {
 
     @Composable
     override fun present(): CustomReactionState {
-        var selectedEvent by remember { mutableStateOf<TimelineItem.Event?>(null) }
-        var emojiState: Async<EmojibaseStore> by remember {
-            mutableStateOf(Async.Uninitialized)
+        val target: MutableState<CustomReactionState.Target> = remember {
+            mutableStateOf(CustomReactionState.Target.None)
         }
+
         val localCoroutineScope = rememberCoroutineScope()
-        val context = LocalContext.current
         fun handleShowCustomReactionSheet(event: TimelineItem.Event) {
-            selectedEvent = event
-            emojiState = Async.Loading()
+            target.value = CustomReactionState.Target.Loading(event)
             localCoroutineScope.launch {
-                emojiState = Async.Success(EmojibaseDatasource().load(context))
+                target.value = CustomReactionState.Target.Success(
+                    event = event,
+                    emojibaseStore = emojibaseProvider.loadEmojibase()
+                )
             }
         }
 
         fun handleDismissCustomReactionSheet() {
-            selectedEvent = null
-            emojiState = Async.Uninitialized
+            target.value = CustomReactionState.Target.None
         }
 
         fun handleEvents(event: CustomReactionEvents) {
@@ -61,10 +65,10 @@ class CustomReactionPresenter @Inject constructor() : Presenter<CustomReactionSt
                 is CustomReactionEvents.DismissCustomReactionSheet -> handleDismissCustomReactionSheet()
             }
         }
-        val selectedEmoji = selectedEvent?.reactionsState?.reactions?.mapNotNull { if(it.isHighlighted) it.key else null }.orEmpty().toImmutableSet()
+        val event = (target.value as? CustomReactionState.Target.Success)?.event
+        val selectedEmoji = event?.reactionsState?.reactions?.mapNotNull { if(it.isHighlighted) it.key else null }.orEmpty().toImmutableSet()
         return CustomReactionState(
-            selectedEventId = selectedEvent?.eventId,
-            emojiProvider = emojiState,
+            target = target.value,
             selectedEmoji = selectedEmoji,
             eventSink = ::handleEvents
         )

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/components/customreaction/CustomReactionState.kt

@@ -17,13 +17,27 @@
 package io.element.android.features.messages.impl.timeline.components.customreaction
 
 import io.element.android.emojibasebindings.EmojibaseStore
+import io.element.android.features.messages.impl.actionlist.ActionListState
+import io.element.android.features.messages.impl.actionlist.model.TimelineItemAction
+import io.element.android.features.messages.impl.timeline.model.TimelineItem
 import io.element.android.libraries.architecture.Async
 import io.element.android.libraries.matrix.api.core.EventId
+import kotlinx.collections.immutable.ImmutableList
 import kotlinx.collections.immutable.ImmutableSet
 
 data class CustomReactionState(
-    val selectedEventId: EventId?,
-    val emojiProvider: Async<EmojibaseStore>,
+    val target: Target,
     val selectedEmoji: ImmutableSet<String>,
     val eventSink: (CustomReactionEvents) -> Unit,
-)
+) {
+    sealed interface Target {
+
+        data object None : Target
+        data class Loading(val event: TimelineItem.Event) : Target
+        data class Success(
+            val event: TimelineItem.Event,
+            val emojibaseStore: EmojibaseStore,
+        ) : Target
+    }
+}
+

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/components/customreaction/DefaultEmojibaseProvider.kt

@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2023 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 io.element.android.features.messages.impl.timeline.components.customreaction
+
+import android.content.Context
+import io.element.android.emojibasebindings.EmojibaseDatasource
+import io.element.android.emojibasebindings.EmojibaseStore
+
+class DefaultEmojibaseProvider(val context: Context) :EmojibaseProvider {
+    override fun loadEmojibase(): EmojibaseStore {
+        return EmojibaseDatasource().load(context)
+    }
+}

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/components/customreaction/EmojiPicker.kt

@@ -63,12 +63,12 @@ import kotlinx.coroutines.launch
 @Composable
 fun EmojiPicker(
     onEmojiSelected: (Emoji) -> Unit,
-    emojiProvider: EmojibaseStore,
+    emojibaseStore: EmojibaseStore,
     selectedEmojis: ImmutableSet<String>,
     modifier: Modifier = Modifier,
 ) {
     val coroutineScope = rememberCoroutineScope()
-    val categories = remember { emojiProvider.categories }
+    val categories = remember { emojibaseStore.categories }
     val pagerState = rememberPagerState(pageCount = { EmojibaseCategory.values().size })
     Column(modifier) {
         TabRow(
@@ -149,7 +149,7 @@ internal fun EmojiPickerDarkPreview() {
 private fun ContentToPreview() {
     EmojiPicker(
         onEmojiSelected = {},
-        emojiProvider = EmojibaseDatasource().load(LocalContext.current),
+        emojibaseStore = EmojibaseDatasource().load(LocalContext.current),
         selectedEmojis = persistentSetOf("😀", "😄", "😃"),
         modifier = Modifier.fillMaxWidth(),
     )

features/messages/impl/src/main/kotlin/io/element/android/features/messages/impl/timeline/components/customreaction/EmojibaseProvider.kt

@@ -0,0 +1,23 @@
+/*
+ * Copyright (c) 2023 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 io.element.android.features.messages.impl.timeline.components.customreaction
+
+import io.element.android.emojibasebindings.EmojibaseStore
+
+interface EmojibaseProvider {
+    fun loadEmojibase(): EmojibaseStore
+}

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

@@ -41,6 +41,7 @@ import io.element.android.features.messages.impl.timeline.model.event.TimelineIt
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemTextContent
 import io.element.android.features.messages.impl.timeline.model.event.TimelineItemVideoContent
 import io.element.android.features.messages.media.FakeLocalMediaFactory
+import io.element.android.features.messages.timeline.components.customreaction.FakeEmojibaseProvider
 import io.element.android.features.messages.utils.messagesummary.FakeMessageSummaryFormatter
 import io.element.android.features.networkmonitor.test.FakeNetworkMonitor
 import io.element.android.libraries.androidutils.clipboard.FakeClipboardHelper
@@ -584,7 +585,7 @@ class MessagesPresenterTest {
         )
         val buildMeta = aBuildMeta()
         val actionListPresenter = ActionListPresenter(buildMeta = buildMeta)
-        val customReactionPresenter = CustomReactionPresenter()
+        val customReactionPresenter = CustomReactionPresenter(emojibaseProvider = FakeEmojibaseProvider())
         val reactionSummaryPresenter = ReactionSummaryPresenter(room = matrixRoom)
         val retrySendMenuPresenter = RetrySendMenuPresenter(room = matrixRoom)
         return MessagesPresenter(

features/messages/impl/src/test/kotlin/io/element/android/features/messages/timeline/components/customreaction/CustomReactionPresenterTests.kt

@@ -24,27 +24,34 @@ import io.element.android.features.messages.impl.timeline.aTimelineItemEvent
 import io.element.android.features.messages.impl.timeline.aTimelineItemReactions
 import io.element.android.features.messages.impl.timeline.components.customreaction.CustomReactionEvents
 import io.element.android.features.messages.impl.timeline.components.customreaction.CustomReactionPresenter
+import io.element.android.features.messages.impl.timeline.components.customreaction.CustomReactionState
 import io.element.android.libraries.matrix.test.AN_EVENT_ID
 import kotlinx.coroutines.test.runTest
 import org.junit.Test
 
 class CustomReactionPresenterTests {
 
-    private val presenter = CustomReactionPresenter()
+    private val presenter = CustomReactionPresenter(emojibaseProvider = FakeEmojibaseProvider())
 
     @Test
     fun `present - handle selecting and de-selecting an event`() = runTest {
         moleculeFlow(RecompositionMode.Immediate) {
             presenter.present()
         }.test {
-            val initialState = awaitItem()
-            assertThat(initialState.selectedEventId).isNull()
 
-            initialState.eventSink(CustomReactionEvents.ShowCustomReactionSheet(aTimelineItemEvent(eventId = AN_EVENT_ID)))
-            assertThat(awaitItem().selectedEventId).isEqualTo(AN_EVENT_ID)
+            val event = aTimelineItemEvent(eventId = AN_EVENT_ID)
+            val initialState = awaitItem()
+            assertThat(initialState.target).isEqualTo(CustomReactionState.Target.None)
+
+            initialState.eventSink(CustomReactionEvents.ShowCustomReactionSheet(event))
+
+            assertThat(awaitItem().target).isEqualTo(CustomReactionState.Target.Loading(event))
+
+            val eventId = (awaitItem().target as? CustomReactionState.Target.Success)?.event?.eventId
+            assertThat(eventId).isEqualTo(AN_EVENT_ID)
 
             initialState.eventSink(CustomReactionEvents.DismissCustomReactionSheet)
-            assertThat(awaitItem().selectedEventId).isNull()
+            assertThat(awaitItem().target).isEqualTo(CustomReactionState.Target.None)
         }
     }
 
@@ -53,13 +60,19 @@ class CustomReactionPresenterTests {
         moleculeFlow(RecompositionMode.Immediate) {
             presenter.present()
         }.test {
-            val initialState = awaitItem()
-            assertThat(initialState.selectedEventId).isNull()
             val reactions = aTimelineItemReactions(count = 1, isHighlighted = true)
+            val event = aTimelineItemEvent(eventId = AN_EVENT_ID, timelineItemReactions = reactions)
+            val initialState = awaitItem()
+            assertThat(initialState.target).isEqualTo(CustomReactionState.Target.None)
+
             val key = reactions.reactions.first().key
-            initialState.eventSink(CustomReactionEvents.ShowCustomReactionSheet(aTimelineItemEvent(eventId = AN_EVENT_ID, timelineItemReactions = reactions)))
+            initialState.eventSink(CustomReactionEvents.ShowCustomReactionSheet(event))
+
+            assertThat(awaitItem().target).isEqualTo(CustomReactionState.Target.Loading(event))
+
             val stateWithSelectedEmojis = awaitItem()
-            assertThat(stateWithSelectedEmojis.selectedEventId).isEqualTo(AN_EVENT_ID)
+            val eventId = (stateWithSelectedEmojis.target as? CustomReactionState.Target.Success)?.event?.eventId
+            assertThat(eventId).isEqualTo(AN_EVENT_ID)
             assertThat(stateWithSelectedEmojis.selectedEmoji).contains(key)
         }
     }

features/messages/impl/src/test/kotlin/io/element/android/features/messages/timeline/components/customreaction/FakeEmojibaseProvider.kt

@@ -0,0 +1,26 @@
+/*
+ * Copyright (c) 2023 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 io.element.android.features.messages.timeline.components.customreaction
+
+import io.element.android.emojibasebindings.EmojibaseStore
+import io.element.android.features.messages.impl.timeline.components.customreaction.EmojibaseProvider
+
+class FakeEmojibaseProvider: EmojibaseProvider {
+    override fun loadEmojibase(): EmojibaseStore {
+        return EmojibaseStore(mapOf())
+    }
+}