fix: Re-fetching of devices certificates on comming back from DeviceDetails [WPB-6970]

app/src/main/kotlin/com/wire/android/ui/settings/devices/SelfDevicesScreen.kt

@@ -28,12 +28,14 @@ import androidx.compose.material.icons.filled.ChevronRight
 import androidx.compose.material3.Divider
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.unit.Dp
 import androidx.compose.ui.unit.dp
 import androidx.hilt.navigation.compose.hiltViewModel
+import androidx.lifecycle.Lifecycle
 import com.ramcosta.composedestinations.annotation.Destination
 import com.ramcosta.composedestinations.annotation.RootNavGraph
 import com.wire.android.R
@@ -48,6 +50,7 @@ import com.wire.android.ui.destinations.DeviceDetailsScreenDestination
 import com.wire.android.ui.settings.devices.model.SelfDevicesState
 import com.wire.android.ui.theme.wireColorScheme
 import com.wire.android.util.extension.folderWithElements
+import com.wire.android.util.lifecycle.rememberLifecycleEvent
 
 @RootNavGraph
 @Destination
@@ -56,6 +59,11 @@ fun SelfDevicesScreen(
     navigator: Navigator,
     viewModel: SelfDevicesViewModel = hiltViewModel()
 ) {
+    val lifecycleEvent = rememberLifecycleEvent()
+    LaunchedEffect(lifecycleEvent) {
+        if (lifecycleEvent == Lifecycle.Event.ON_RESUME) viewModel.loadCertificates()
+    }
+
     SelfDevicesScreenContent(
         state = viewModel.state,
         onNavigateBack = navigator::navigateBack,
@@ -97,7 +105,7 @@ fun SelfDevicesScreenContent(
                                 isE2EIEnabled = state.isE2EIEnabled,
                                 onDeviceClick = onDeviceClick,
 
-                            )
+                                )
                         }
                         folderDeviceItems(
                             header = context.getString(R.string.other_devices_label),
@@ -113,6 +121,7 @@ fun SelfDevicesScreenContent(
         }
     )
 }
+
 @Suppress("LongParameterList")
 private fun LazyListScope.folderDeviceItems(
     header: String,

app/src/main/kotlin/com/wire/android/ui/settings/devices/SelfDevicesViewModel.kt

@@ -33,7 +33,10 @@ import com.wire.kalium.logic.feature.client.ObserveCurrentClientIdUseCase
 import com.wire.kalium.logic.feature.e2ei.usecase.GetUserE2eiCertificatesUseCase
 import com.wire.kalium.logic.feature.user.IsE2EIEnabledUseCase
 import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.combine
 import kotlinx.coroutines.flow.firstOrNull
+import kotlinx.coroutines.flow.map
 import kotlinx.coroutines.launch
 import javax.inject.Inject
 
@@ -52,6 +55,9 @@ class SelfDevicesViewModel @Inject constructor(
     )
         private set
 
+    private val refreshE2eiCertificates: MutableSharedFlow<Unit> = MutableSharedFlow<Unit>()
+    private val observeUserE2eiCertificates = refreshE2eiCertificates.map { getUserE2eiCertificates(currentAccountId) }
+
     init {
         // this will cause the list to be refreshed
         loadClientsList()
@@ -60,24 +66,24 @@ class SelfDevicesViewModel @Inject constructor(
 
     private fun observeClientList() {
         viewModelScope.launch {
-            observeClientList(currentAccountId).collect { result ->
-                state = when (result) {
-                    is ObserveClientsByUserIdUseCase.Result.Failure -> state.copy(isLoadingClientsList = false)
-                    is ObserveClientsByUserIdUseCase.Result.Success -> {
-                        val currentClientId = currentClientIdUseCase().firstOrNull()
-                        val e2eiCertificates = getUserE2eiCertificates(currentAccountId)
-                        state.copy(
-                            isLoadingClientsList = false,
-                            currentDevice = result.clients
-                                .firstOrNull { it.id == currentClientId }
-                                ?.let { Device(it, e2eiCertificates[it.id.value]) },
-                            deviceList = result.clients
-                                .filter { it.id != currentClientId }
-                                .map { Device(it, e2eiCertificates[it.id.value]) }
-                        )
+            observeClientList(currentAccountId).combine(observeUserE2eiCertificates, ::Pair)
+                .collect { (result, e2eiCertificates) ->
+                    state = when (result) {
+                        is ObserveClientsByUserIdUseCase.Result.Failure -> state.copy(isLoadingClientsList = false)
+                        is ObserveClientsByUserIdUseCase.Result.Success -> {
+                            val currentClientId = currentClientIdUseCase().firstOrNull()
+                            state.copy(
+                                isLoadingClientsList = false,
+                                currentDevice = result.clients
+                                    .firstOrNull { it.id == currentClientId }
+                                    ?.let { Device(it, e2eiCertificates[it.id.value]) },
+                                deviceList = result.clients
+                                    .filter { it.id != currentClientId }
+                                    .map { Device(it, e2eiCertificates[it.id.value]) }
+                            )
+                        }
                     }
                 }
-            }
         }
     }
 
@@ -86,4 +92,10 @@ class SelfDevicesViewModel @Inject constructor(
             fetchSelfClientsFromRemote()
         }
     }
+
+    fun loadCertificates() {
+        viewModelScope.launch {
+            refreshE2eiCertificates.emit(Unit)
+        }
+    }
 }

app/src/main/kotlin/com/wire/android/util/lifecycle/LifecycleEventObservation.kt

@@ -0,0 +1,44 @@
+/*
+ * Wire
+ * Copyright (C) 2024 Wire Swiss GmbH
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see http://www.gnu.org/licenses/.
+ */
+package com.wire.android.util.lifecycle
+
+import androidx.compose.runtime.Composable
+import androidx.compose.runtime.DisposableEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.platform.LocalLifecycleOwner
+import androidx.lifecycle.Lifecycle
+import androidx.lifecycle.LifecycleEventObserver
+import androidx.lifecycle.LifecycleOwner
+
+@Composable
+fun rememberLifecycleEvent(lifecycleOwner: LifecycleOwner = LocalLifecycleOwner.current): Lifecycle.Event {
+    var state by remember { mutableStateOf(Lifecycle.Event.ON_ANY) }
+    DisposableEffect(lifecycleOwner) {
+        val observer = LifecycleEventObserver { _, event ->
+            state = event
+        }
+        lifecycleOwner.lifecycle.addObserver(observer)
+        onDispose {
+            lifecycleOwner.lifecycle.removeObserver(observer)
+        }
+    }
+    return state
+}

app/src/test/kotlin/com/wire/android/ui/settings/devices/SelfDevicesViewModelTest.kt

@@ -32,7 +32,9 @@ import com.wire.kalium.logic.feature.e2ei.usecase.GetUserE2eiCertificatesUseCase
 import com.wire.kalium.logic.feature.user.IsE2EIEnabledUseCase
 import io.mockk.MockKAnnotations
 import io.mockk.coEvery
+import io.mockk.coVerify
 import io.mockk.impl.annotations.MockK
+import io.mockk.verify
 import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.flow.flowOf
 import kotlinx.coroutines.test.runTest
@@ -49,14 +51,30 @@ class SelfDevicesViewModelTest {
             // given
             val (_, viewModel) = Arrangement()
                 .arrange()
+            val currentDevice = Device(TestClient.CLIENT)
 
             // when
-            val currentDevice = Device(TestClient.CLIENT)
+            viewModel.loadCertificates()
 
             // then
             assert(!viewModel.state.deviceList.contains(currentDevice))
         }
 
+    @Test
+    fun `given a self client id, when loadCertificates is called, then E2EI Certificates is fetched again`() =
+        runTest {
+            // given
+            val (arragne, viewModel) = Arrangement()
+                .arrange()
+
+            // when
+            viewModel.loadCertificates()
+            viewModel.loadCertificates()
+
+            // then
+            coVerify(exactly = 2) { arragne.getUserE2eiCertificates(any()) }
+        }
+
     private class Arrangement {
 
         @MockK