Refactor duplicated code.

vector/src/main/java/im/vector/app/features/settings/devices/v2/DevicesViewModel.kt

@@ -24,10 +24,7 @@ import dagger.assisted.AssistedInject
 import im.vector.app.core.di.ActiveSessionHolder
 import im.vector.app.core.di.MavericksAssistedViewModelFactory
 import im.vector.app.core.di.hiltMavericksViewModelFactory
-import im.vector.app.core.platform.VectorViewModel
-import im.vector.app.core.utils.PublishDataSource
 import im.vector.app.features.settings.devices.v2.filter.DeviceManagerFilterType
-import im.vector.lib.core.utils.flow.throttleFirst
 import kotlinx.coroutines.flow.launchIn
 import kotlinx.coroutines.flow.onEach
 import kotlinx.coroutines.launch
@@ -35,16 +32,15 @@ import org.matrix.android.sdk.api.extensions.orFalse
 import org.matrix.android.sdk.api.session.crypto.verification.VerificationService
 import org.matrix.android.sdk.api.session.crypto.verification.VerificationTransaction
 import org.matrix.android.sdk.api.session.crypto.verification.VerificationTxState
-import kotlin.time.Duration.Companion.seconds
 
 class DevicesViewModel @AssistedInject constructor(
         @Assisted initialState: DevicesViewState,
         private val activeSessionHolder: ActiveSessionHolder,
         private val getCurrentSessionCrossSigningInfoUseCase: GetCurrentSessionCrossSigningInfoUseCase,
         private val getDeviceFullInfoListUseCase: GetDeviceFullInfoListUseCase,
-        private val refreshDevicesUseCase: RefreshDevicesUseCase,
         private val refreshDevicesOnCryptoDevicesChangeUseCase: RefreshDevicesOnCryptoDevicesChangeUseCase,
-) : VectorViewModel<DevicesViewState, DevicesAction, DevicesViewEvent>(initialState), VerificationService.Listener {
+        refreshDevicesUseCase: RefreshDevicesUseCase,
+) : VectorSessionsListViewModel<DevicesViewState, DevicesAction, DevicesViewEvent>(initialState, refreshDevicesUseCase), VerificationService.Listener {
 
     @AssistedFactory
     interface Factory : MavericksAssistedViewModelFactory<DevicesViewModel, DevicesViewState> {
@@ -53,14 +49,10 @@ class DevicesViewModel @AssistedInject constructor(
 
     companion object : MavericksViewModelFactory<DevicesViewModel, DevicesViewState> by hiltMavericksViewModelFactory()
 
-    private val refreshSource = PublishDataSource<Unit>()
-    private val refreshThrottleDelayMs = 4.seconds.inWholeMilliseconds
-
     init {
         addVerificationListener()
         observeCurrentSessionCrossSigningInfo()
         observeDevices()
-        observeRefreshSource()
         refreshDevicesOnCryptoDevicesChange()
         queryRefreshDevicesList()
     }
@@ -123,13 +115,6 @@ class DevicesViewModel @AssistedInject constructor(
         }
     }
 
-    private fun observeRefreshSource() {
-        refreshSource.stream()
-                .throttleFirst(refreshThrottleDelayMs)
-                .onEach { refreshDevicesUseCase.execute() }
-                .launchIn(viewModelScope)
-    }
-
     override fun transactionUpdated(tx: VerificationTransaction) {
         if (tx.state == VerificationTxState.Verified) {
             queryRefreshDevicesList()
@@ -142,7 +127,7 @@ class DevicesViewModel @AssistedInject constructor(
      * It can be any mobile devices, and any browsers.
      */
     private fun queryRefreshDevicesList() {
-        refreshSource.post(Unit)
+        refreshDeviceList()
     }
 
     override fun handle(action: DevicesAction) {

vector/src/main/java/im/vector/app/features/settings/devices/v2/VectorSessionsListViewModel.kt

@@ -0,0 +1,51 @@
+/*
+ * 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.settings.devices.v2
+
+import com.airbnb.mvrx.MavericksState
+import im.vector.app.core.platform.VectorViewEvents
+import im.vector.app.core.platform.VectorViewModel
+import im.vector.app.core.platform.VectorViewModelAction
+import im.vector.app.core.utils.PublishDataSource
+import im.vector.lib.core.utils.flow.throttleFirst
+import kotlinx.coroutines.flow.launchIn
+import kotlinx.coroutines.flow.onEach
+import kotlin.time.Duration.Companion.seconds
+
+abstract class VectorSessionsListViewModel<S : MavericksState, VA : VectorViewModelAction, VE : VectorViewEvents>(
+        initialState: S,
+        private val refreshDevicesUseCase: RefreshDevicesUseCase,
+) : VectorViewModel<S, VA, VE>(initialState) {
+
+    private val refreshSource = PublishDataSource<Unit>()
+    private val refreshThrottleDelayMs = 4.seconds.inWholeMilliseconds
+
+    init {
+        observeRefreshSource()
+    }
+
+    private fun observeRefreshSource() {
+        refreshSource.stream()
+                .throttleFirst(refreshThrottleDelayMs)
+                .onEach { refreshDevicesUseCase.execute() }
+                .launchIn(viewModelScope)
+    }
+
+    fun refreshDeviceList() {
+        refreshSource.post(Unit)
+    }
+}

vector/src/main/java/im/vector/app/features/settings/devices/v2/othersessions/OtherSessionsViewModel.kt

@@ -17,33 +17,28 @@
 package im.vector.app.features.settings.devices.v2.othersessions
 
 import com.airbnb.mvrx.MavericksViewModelFactory
-import com.airbnb.mvrx.Success
 import dagger.assisted.Assisted
 import dagger.assisted.AssistedFactory
 import dagger.assisted.AssistedInject
 import im.vector.app.core.di.ActiveSessionHolder
 import im.vector.app.core.di.MavericksAssistedViewModelFactory
 import im.vector.app.core.di.hiltMavericksViewModelFactory
-import im.vector.app.core.platform.VectorViewModel
-import im.vector.app.core.utils.PublishDataSource
 import im.vector.app.features.settings.devices.v2.GetDeviceFullInfoListUseCase
 import im.vector.app.features.settings.devices.v2.RefreshDevicesUseCase
+import im.vector.app.features.settings.devices.v2.VectorSessionsListViewModel
 import im.vector.app.features.settings.devices.v2.filter.DeviceManagerFilterType
-import im.vector.lib.core.utils.flow.throttleFirst
 import kotlinx.coroutines.Job
-import kotlinx.coroutines.flow.launchIn
-import kotlinx.coroutines.flow.onEach
 import org.matrix.android.sdk.api.session.crypto.verification.VerificationService
 import org.matrix.android.sdk.api.session.crypto.verification.VerificationTransaction
 import org.matrix.android.sdk.api.session.crypto.verification.VerificationTxState
-import kotlin.time.Duration.Companion.seconds
 
 class OtherSessionsViewModel @AssistedInject constructor(
         @Assisted initialState: OtherSessionsViewState,
         private val activeSessionHolder: ActiveSessionHolder,
         private val getDeviceFullInfoListUseCase: GetDeviceFullInfoListUseCase,
-        private val refreshDevicesUseCase: RefreshDevicesUseCase,
-) : VectorViewModel<OtherSessionsViewState, OtherSessionsAction, OtherSessionsViewEvents>(initialState), VerificationService.Listener {
+        refreshDevicesUseCase: RefreshDevicesUseCase
+) : VectorSessionsListViewModel<OtherSessionsViewState, OtherSessionsAction, OtherSessionsViewEvents>(initialState, refreshDevicesUseCase),
+        VerificationService.Listener {
 
     @AssistedFactory
     interface Factory : MavericksAssistedViewModelFactory<OtherSessionsViewModel, OtherSessionsViewState> {
@@ -54,13 +49,9 @@ class OtherSessionsViewModel @AssistedInject constructor(
 
     private var observeDevicesJob: Job? = null
 
-    private val refreshSource = PublishDataSource<Unit>()
-    private val refreshThrottleDelayMs = 4.seconds.inWholeMilliseconds
-
     init {
         observeDevices(initialState.currentFilter)
         addVerificationListener()
-        observeRefreshSource()
     }
 
     override fun onCleared() {
@@ -75,15 +66,9 @@ class OtherSessionsViewModel @AssistedInject constructor(
                 excludeCurrentDevice = true
         )
                 .execute { async ->
-                    if (async is Success) {
                     copy(
                             devices = async,
                     )
-                    } else {
-                        copy(
-                                devices = async
-                        )
-                    }
                 }
     }
 
@@ -101,13 +86,6 @@ class OtherSessionsViewModel @AssistedInject constructor(
                 ?.removeListener(this)
     }
 
-    private fun observeRefreshSource() {
-        refreshSource.stream()
-                .throttleFirst(refreshThrottleDelayMs)
-                .onEach { refreshDevicesUseCase.execute() }
-                .launchIn(viewModelScope)
-    }
-
     override fun transactionUpdated(tx: VerificationTransaction) {
         if (tx.state == VerificationTxState.Verified) {
             queryRefreshDevicesList()
@@ -115,7 +93,7 @@ class OtherSessionsViewModel @AssistedInject constructor(
     }
 
     private fun queryRefreshDevicesList() {
-        refreshSource.post(Unit)
+        refreshDeviceList()
     }
 
     override fun handle(action: OtherSessionsAction) {