import os
from google import genai
from google.genai import types

def get_files_info(directory: str = ".") -> str:
    print(f" -> Executing tool: get_files_info(directory='{directory}')")
    return "file1.txt, main.py"

def get_file_content(file_path: str) -> str:
    print(f" -> Executing tool: get_file_content(file_path='{file_path}')")
    return "print('Hello world')"

# Fails on PR branch #2453 with: "Function call is missing a thought_signature..."
def main():
    # Make sure to set GEMINI_API_KEY in your environment before running
    client = genai.Client(api_key=os.environ.get("GEMINI_API_KEY"))

    chat = client.chats.create(
        model="gemini-3.1-flash-lite",
        config=types.GenerateContentConfig(
            tools=[get_files_info, get_file_content],
            automatic_function_calling=types.AutomaticFunctionCallingConfig(
                disable=False, maximum_remote_calls=5
            ),
            # Prevents parallel execution to force sequential multi-turn AFC
            system_instruction="Do not call tools in parallel. Always list files first.",
            temperature=0.0,
        ),
    )

    prompt = "Please look at the files in the current directory, and then tell me what is inside the python file."
    
    try:
        # Standard synchronous send_message (routes to unpatched `generate_content`)
        response = chat.send_message(prompt)
        print("\n--- SUCCESS ---")
        print(response.text)
    except Exception as e:
        print("\n--- CRASH DETECTED ---")
        import traceback
        traceback.print_exc()

if __name__ == "__main__":
    main()