chore: fixes missing handle chat

app.py

@@ -301,6 +301,77 @@ class RepoAnalyzer:
                 continue
         return False, "Tidak dapat membaca file dengan encoding yang didukung"
 
+async def handle_chat(
+    message,
+    history,
+    provider_choice,
+    model_name,
+    xai_key,
+    gemini_key,
+    selected_files,
+):
+    """Menangani interaksi chat dengan model AI"""
+    if not analyzer.current_repo:
+        new_message = {
+            "role": "assistant",
+            "content": "⚠️ Mohon clone repository terlebih dahulu sebelum mengajukan pertanyaan."
+        }
+        history = history or []
+        history.append({"role": "user", "content": message})
+        history.append(new_message)
+        yield history
+        return
+
+    history = history or []
+    history.append({"role": "user", "content": message})
+    history.append({"role": "assistant", "content": ""})
+
+    try:
+        # Add context about selected files to the prompt
+        file_context = ""
+        if selected_files:
+            file_context = "\n\nFile yang dipilih:\n"
+            for file in selected_files:
+                content = analyzer.repo_content.get(file, "")
+                if content:  # Only include files that exist
+                    file_context += f"\n{file}:\n```\n{content}\n```\n"
+
+        enhanced_message = f"{message}\n{file_context}"
+
+        full_response = ""
+        if provider_choice == AIProvider.XAI:
+            async for chunk in analyzer.stream_xai_response(
+                enhanced_message, xai_key, model_name
+            ):
+                full_response += chunk
+                # Add delay between chunks for readability
+                await asyncio.sleep(0.05)
+                history[-1]["content"] = full_response
+                yield history
+
+        elif provider_choice == AIProvider.GEMINI:
+            async for chunk in analyzer.stream_gemini_response(
+                enhanced_message, gemini_key or DEFAULT_GEMINI_KEY
+            ):
+                full_response += chunk
+                # Add delay between chunks for readability
+                await asyncio.sleep(0.05)
+                history[-1]["content"] = full_response
+                yield history
+
+        else:  # OLLAMA
+            response = analyze_with_ollama(model_name, enhanced_message)
+            # Simulate streaming for OLLAMA with delay
+            words = response.split()
+            for i in range(len(words)):
+                full_response = " ".join(words[:i + 1])
+                await asyncio.sleep(0.05)
+                history[-1]["content"] = full_response
+                yield history
+
+    except Exception as e:
+        history[-1]["content"] = f"⚠️ Error: {str(e)}"
+        yield history
 
 def create_ui():
     analyzer = RepoAnalyzer()