add translation logic

Signed-off-by: alperozturk96 <alper_ozturk@proton.me>

Author: alperozturk96

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

@@ -21,6 +21,9 @@ import com.owncloud.android.lib.resources.assistant.chat.model.ChatMessage
 import com.owncloud.android.lib.resources.assistant.chat.model.ChatMessageRequest
 import com.owncloud.android.lib.resources.assistant.v2.model.Task
 import com.owncloud.android.lib.resources.assistant.v2.model.TaskTypeData
+import com.owncloud.android.lib.resources.assistant.v2.model.TranslationLanguage
+import com.owncloud.android.lib.resources.assistant.v2.model.TranslationRequest
+import com.owncloud.android.lib.resources.assistant.v2.model.toTranslationModel
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.Job
 import kotlinx.coroutines.delay
@@ -184,6 +187,35 @@ class AssistantViewModel(
         }
     }
 
+    fun translate(textToTranslate: String, originLanguage: TranslationLanguage, targetLanguage: TranslationLanguage) {
+        val task = _selectedTaskType.value
+        if (task == null) {
+            _snackbarMessageId.update {
+                R.string.assistant_screen_select_task
+            }
+            return
+        }
+
+        val model = task.toTranslationModel()
+
+        if (model == null) {
+            _snackbarMessageId.update {
+                R.string.translation_screen_error_message
+            }
+            return
+        }
+
+        val input = TranslationRequest(
+            input = textToTranslate,
+            originLanguage = originLanguage.code,
+            targetLanguage = targetLanguage.code,
+            maxTokens = model.maxTokens,
+            model = model.model
+        ).toJson()
+
+        createTask(input, task)
+    }
+
     // region chat
     fun sendChatMessage(content: String, sessionId: Long) = viewModelScope.launch(Dispatchers.IO) {
         val request = ChatMessageRequest(

app/src/main/java/com/nextcloud/client/assistant/translate/TranslationScreen.kt

@@ -63,7 +63,7 @@ fun TranslationScreen(task: TaskTypeData?, viewModel: AssistantViewModel, textTo
             .padding(16.dp)
             .padding(top = 32.dp), floatingActionButton = {
             FloatingActionButton(onClick = {
-
+                viewModel.translate(textToTranslate, originLanguage, targetLanguage)
             }, content = {
                 Icon(
                     painter = painterResource(R.drawable.ic_translate),

app/src/main/res/values/strings.xml

@@ -70,12 +70,14 @@
     <string name="assistant_screen_task_delete_fail_message">An error occurred while deleting the task</string>
     <string name="assistant_task_detail_screen_input_button_title">Input</string>
     <string name="assistant_task_detail_screen_output_button_title">Output</string>
+    <string name="assistant_screen_select_task">Please select task</string>
 
     <!-- Translation Screen -->
     <string name="translation_screen_label_from">Source language: </string>
     <string name="translation_screen_label_to">Translate to: </string>
     <string name="translation_screen_hint_source">Enter text to translate…</string>
     <string name="translation_screen_hint_target">Translation will appear here…</string>
+    <string name="translation_screen_error_message">Translation model not exists.</string>
 
     <!-- Conversation Screen -->
     <string name="conversation_screen_title">Conversations</string>