Fix Rename Chat single-line input and surface persistence failures

Author: GerardPaligot

duckchat/duckchat-impl/src/main/java/com/duckduckgo/duckchat/impl/history/ChatHistoryRepository.kt

@@ -61,7 +61,9 @@ class RealChatHistoryRepository @Inject constructor(
     }
 
     override suspend fun renameChat(chatId: String, newTitle: String) {
-        withContext(dispatchers.io()) { chatStore.renameChat(chatId, newTitle) }
+        withContext(dispatchers.io()) {
+            check(chatStore.renameChat(chatId, newTitle)) { "Chat $chatId not found or unreadable" }
+        }
     }
 
     private fun toChatHistoryItem(chat: DuckAiChat): ChatHistoryItem = ChatHistoryItem(

duckchat/duckchat-impl/src/main/res/layout/fragment_rename_chat.xml

@@ -44,9 +44,10 @@
         android:layout_height="wrap_content"
         android:layout_margin="@dimen/keyline_4"
         android:hint="@string/duck_ai_chat_history_rename_chat_title_hint"
-        android:inputType="text|textCapWords"
+        app:capitalizeKeyboard="true"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toBottomOf="@id/appBarLayout" />
+        app:layout_constraintTop_toBottomOf="@id/appBarLayout"
+        app:type="single_line" />
 
 </androidx.constraintlayout.widget.ConstraintLayout>

duckchat/duckchat-impl/src/test/kotlin/com/duckduckgo/duckchat/impl/history/ChatHistoryRepositoryTest.kt

@@ -165,6 +165,22 @@ class ChatHistoryRepositoryTest {
         verify(chatStore).deleteAllChats()
     }
 
+    @Test
+    fun `renameChat delegates to store on success`() = runTest {
+        whenever(chatStore.renameChat("abc", "New")).thenReturn(true)
+
+        repository.renameChat("abc", "New")
+
+        verify(chatStore).renameChat("abc", "New")
+    }
+
+    @Test(expected = IllegalStateException::class)
+    fun `renameChat throws when store reports the chat could not be updated`() = runTest {
+        whenever(chatStore.renameChat("missing", "New")).thenReturn(false)
+
+        repository.renameChat("missing", "New")
+    }
+
     private fun chat(
         chatId: String,
         title: String = "Title",