Make AssistantViewModel testable

Signed-off-by: alperozturk <alper_ozturk@proton.me>

app/src/main/java/com/nextcloud/client/assistant/AssistantViewModel.kt

@@ -23,8 +23,7 @@ package com.nextcloud.client.assistant
 
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
-import com.nextcloud.client.assistant.repository.AssistantRepository
-import com.nextcloud.common.NextcloudClient
+import com.nextcloud.client.assistant.repository.AssistantRepositoryType
 import com.owncloud.android.MainApp
 import com.owncloud.android.R
 import com.owncloud.android.lib.resources.assistant.model.Task
@@ -35,9 +34,7 @@ import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.update
 import kotlinx.coroutines.launch
 
-class AssistantViewModel(client: NextcloudClient) : ViewModel() {
-
-    private val repository: AssistantRepository = AssistantRepository(client)
+class AssistantViewModel(private val repository: AssistantRepositoryType) : ViewModel() {
 
     private val _selectedTaskType = MutableStateFlow<TaskType?>(null)
     val selectedTaskType: StateFlow<TaskType?> = _selectedTaskType
@@ -88,7 +85,7 @@ class AssistantViewModel(client: NextcloudClient) : ViewModel() {
         viewModelScope.launch(Dispatchers.IO) {
             val allTaskType = MainApp.getAppContext().getString(R.string.assistant_screen_all_task_type)
             val result = arrayListOf(TaskType(null, allTaskType, null))
-            val taskTypes = repository.getTaskTypes().resultData.types ?: listOf()
+            val taskTypes = repository.getTaskTypes().resultData.types
             result.addAll(taskTypes)
 
             _taskTypes.update {

app/src/main/java/com/nextcloud/client/assistant/AsssistantScreen.kt

@@ -38,6 +38,7 @@ import androidx.compose.material3.ExperimentalMaterial3Api
 import androidx.compose.material3.FloatingActionButton
 import androidx.compose.material3.Icon
 import androidx.compose.material3.LinearProgressIndicator
+import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.pulltorefresh.rememberPullToRefreshState
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
@@ -49,13 +50,15 @@ import androidx.compose.runtime.setValue
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.input.nestedscroll.nestedScroll
-import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import com.nextcloud.client.assistant.component.AddTaskAlertDialog
 import com.nextcloud.client.assistant.component.CenterText
 import com.nextcloud.client.assistant.component.TaskTypesRow
 import com.nextcloud.client.assistant.component.TaskView
+import com.nextcloud.client.assistant.repository.AssistantMockRepository
+import com.nextcloud.ui.composeActivity.ComposeActivity
 import com.nextcloud.ui.composeComponents.alertDialog.SimpleAlertDialog
 import com.owncloud.android.R
 import com.owncloud.android.lib.resources.assistant.model.Task
@@ -66,8 +69,7 @@ import kotlinx.coroutines.delay
 @Suppress("LongMethod")
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
-fun AssistantScreen(viewModel: AssistantViewModel) {
-    val activity = LocalContext.current as Activity
+fun AssistantScreen(viewModel: AssistantViewModel, activity: Activity) {
     val loading by viewModel.loading.collectAsState()
     val selectedTaskType by viewModel.selectedTaskType.collectAsState()
     val filteredTaskList by viewModel.filteredTaskList.collectAsState()
@@ -240,3 +242,17 @@ private fun EmptyTaskList(selectedTaskType: TaskType?, taskTypes: List<TaskType>
         )
     }
 }
+
+@Composable
+@Preview
+private fun AssistantScreenPreview() {
+    val mockRepository = AssistantMockRepository()
+    MaterialTheme(
+        content = {
+            AssistantScreen(
+                viewModel = AssistantViewModel(repository = mockRepository),
+                activity = ComposeActivity()
+            )
+        }
+    )
+}

app/src/main/java/com/nextcloud/client/assistant/repository/AssistantMockRepository.kt

@@ -0,0 +1,87 @@
+/*
+ * Nextcloud Android client application
+ *
+ * @author Alper Ozturk
+ * Copyright (C) 2024 Alper Ozturk
+ * Copyright (C) 2024 Nextcloud GmbH
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package com.nextcloud.client.assistant.repository
+
+import com.owncloud.android.lib.common.operations.RemoteOperationResult
+import com.owncloud.android.lib.resources.assistant.model.Task
+import com.owncloud.android.lib.resources.assistant.model.TaskList
+import com.owncloud.android.lib.resources.assistant.model.TaskType
+import com.owncloud.android.lib.resources.assistant.model.TaskTypes
+
+class AssistantMockRepository : AssistantRepositoryType {
+    override fun getTaskTypes(): RemoteOperationResult<TaskTypes> {
+        return RemoteOperationResult<TaskTypes>(RemoteOperationResult.ResultCode.OK).apply {
+            resultData = TaskTypes(
+                listOf(
+                    TaskType("1", "FreePrompt", "You can create free prompt text"),
+                    TaskType("2", "Generate Headline", "You can create generate headline text")
+                )
+            )
+        }
+    }
+
+    override fun createTask(input: String, type: String): RemoteOperationResult<Void> {
+        return RemoteOperationResult<Void>(RemoteOperationResult.ResultCode.OK)
+    }
+
+    override fun getTaskList(appId: String): RemoteOperationResult<TaskList> {
+        return RemoteOperationResult<TaskList>(RemoteOperationResult.ResultCode.OK).apply {
+            resultData = TaskList(
+                listOf(
+                    Task(
+                        1,
+                        "FreePrompt",
+                        null,
+                        "12",
+                        "",
+                        "Give me some text",
+                        "Lorem Ipsum is simply dummy text of the printing and typesetting industry. " +
+                            "Lorem Ipsum has been the industry's standard dummy text ever since the 1500s," +
+                            " when an unknown printer took a galley of type and scrambled it to make a type" +
+                            " specimen book. It has survived not only five centuries, " +
+                            "but also the leap into electronic typesetting, remaining essentially unchanged." +
+                            " It was popularised in the 1960s with the release of Letraset sheets containing " +
+                            "Lorem Ipsum passages, and more recently with desktop publishing software like Aldus" +
+                            " PageMaker including versions of Lorem Ipsum",
+                        "",
+                        ""
+                    ),
+                    Task(
+                        2,
+                        "GenerateHeadline",
+                        null,
+                        "12",
+                        "",
+                        "Give me some text 2",
+                        "Lorem Ipsum is simply dummy text of the printing and typesetting industry.",
+                        "",
+                        ""
+                    )
+                )
+            )
+        }
+    }
+
+    override fun deleteTask(id: Long): RemoteOperationResult<Void> {
+        return RemoteOperationResult<Void>(RemoteOperationResult.ResultCode.OK)
+    }
+}

app/src/main/java/com/nextcloud/ui/composeActivity/ComposeActivity.kt

@@ -33,6 +33,7 @@ import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
 import com.nextcloud.client.assistant.AssistantScreen
 import com.nextcloud.client.assistant.AssistantViewModel
+import com.nextcloud.client.assistant.repository.AssistantRepository
 import com.nextcloud.common.NextcloudClient
 import com.nextcloud.common.User
 import com.nextcloud.utils.extensions.getSerializableArgument
@@ -103,11 +104,12 @@ class ComposeActivity : DrawerActivity() {
         }
 
         if (destination == ComposeDestination.AssistantScreen) {
-            nextcloudClient?.let {
+            nextcloudClient?.let { client ->
                 AssistantScreen(
                     viewModel = AssistantViewModel(
-                        client = it
-                    )
+                        repository = AssistantRepository(client)
+                    ),
+                    activity = this
                 )
             }
         }

app/src/main/java/com/owncloud/android/ui/activity/DrawerActivity.java

@@ -468,7 +468,7 @@ public abstract class DrawerActivity extends ToolbarActivity
         DrawerMenuUtil.filterSearchMenuItems(menu, user, getResources());
         DrawerMenuUtil.filterTrashbinMenuItem(menu, capability);
         DrawerMenuUtil.filterActivityMenuItem(menu, capability);
-        DrawerMenuUtil.filterAssistantMenuItem(menu, capability);
+        // DrawerMenuUtil.filterAssistantMenuItem(menu, capability);
         DrawerMenuUtil.filterGroupfoldersMenuItem(menu, capability);
 
         DrawerMenuUtil.setupHomeMenuItem(menu, getResources());