import os,sys
BASE_DIR = os.path.abspath(os.path.join(os.path.dirname(__file__), "../../"))
sys.path.insert(0, BASE_DIR)
from  function.file import extract_file as extract_file
import function.agent.function_call as fc
import function.function_agent.multi_agent as multi_agent
import function.function_agent.map_toolcall as map_toolcall
import function.gemini_response.response_all as response_all
from models.Database_Entity import StopSignal
from advance_shopping.server_java import server_java
async def check_should_stop(chat_id: str, stop_event: object = None):
    # Trường hợp dừng qua RAM (in-memory)
    await asyncio.sleep(0.1)
    if stop_event and stop_event.is_set():
        print("🛑 Dừng qua stop_event.")
        return {"status": "cancelled"}

    # Trường hợp dừng qua MongoDB
    await asyncio.sleep(0.1)
    if StopSignal.objects(chat_history=chat_id, is_stopped=True).first():
        print("🛑 Dừng vì có StopSignal trong DB.")
        return {"status": "cancelled"}

    return None  # Không bị dừng


async def rollback_cart_if_stopped(stop_event, result_multi_task, chat_id: str, user_id: int, token: str):
    if stop_event and stop_event.is_set():
        for task_id, task_result in result_multi_task.items():
            if task_result.get("is_shopping"):
                print(f"INFO: Bắt đầu rollback task mua sắm: {task_id}")
                chat_cart = ChatCart()
                latest_unconfirmed_cart = ChatCart.objects(chat_history=chat_id).order_by('-created_at').first()
                if latest_unconfirmed_cart:
                    chat_cart = latest_unconfirmed_cart
                
                # Khôi phục trạng thái backup
                chat_cart.cart_products = chat_cart.backup_cart_products
                chat_cart.status = chat_cart.backup_status
                chat_cart.confirmed_order = chat_cart.backup_confirmed_order

                chat_cart.save()
                cart_id = chat_cart.cart_id
                order_id = chat_cart.order_id

                if order_id:
                    try:
                        server_java.confirm_cancel_AI(int(user_id), token, order_id)
                        print(f"✅ Đã huỷ đơn hàng: {order_id}")
                    except Exception as e:
                        print(f"ERROR khi huỷ đơn hàng {order_id}: {e}")
                if cart_id:
                    try:
                        server_java.remove_all_cartItem(int(user_id), cart_id, token)
                        print(f"✅ Đã xoá item trong giỏ hàng: {cart_id}")
                    except Exception as e:
                        print(f"ERROR khi xoá cart item {cart_id}: {e}")

                # Reset các ID để tránh nhầm lẫn về sau
                chat_cart.order_id = None
                chat_cart.cart_id = None
                chat_cart.save()

            else:
                print(f"Task {task_id} không phải mua sắm, không cần rollback.")


from typing import Optional
import asyncio
from models.Database_Entity import StopSignal,ChatCart
async def multi_query_user(
    user_input: str,
    user_id: int,
    role,
    languages: str,
    chat_id,
    token,
    stop_event: Optional[asyncio.Event] = None
) -> str:
    
    chat_cart = ChatCart()
    latest_unconfirmed_cart = ChatCart.objects(chat_history=chat_id,status ="pending").order_by('-created_at').first()
    if latest_unconfirmed_cart:
        chat_cart = latest_unconfirmed_cart
        chat_cart.backup_cart_products = chat_cart.cart_products
        chat_cart.backup_status = chat_cart.status
        chat_cart.backup_confirmed_order = chat_cart.confirmed_order
        chat_cart.save()

    result_check = await check_should_stop(chat_id, stop_event)
    if result_check:
        return result_check

    multi_tasks = await fc.process_user_query(user_input, user_id, role, languages, chat_id)

    result_check = await check_should_stop(chat_id, stop_event)
    if result_check:
        return result_check
    
    result_multi_task = await multi_agent.process_toolcalls_with_order(multi_tasks, token, stop_event,chat_id)
    chat_cart = ChatCart()
    if stop_event and stop_event.is_set():
       await rollback_cart_if_stopped(stop_event, result_multi_task, chat_id, user_id, token)


    result_check = await check_should_stop(chat_id, stop_event)
    if result_check:
        await rollback_cart_if_stopped(stop_event, result_multi_task, chat_id, user_id, token)
        return result_check

    map_tool_result = map_toolcall.map_toolcalls_with_results(multi_tasks, result_multi_task)

    result_check = await check_should_stop(chat_id, stop_event)
    if result_check:
        await rollback_cart_if_stopped(stop_event, result_multi_task, chat_id, user_id, token)
        return result_check

    result = await response_all.response_all(user_input, map_tool_result)

    result_check = await check_should_stop(chat_id, stop_event)
    if result_check:
        await rollback_cart_if_stopped(stop_event, result_multi_task, chat_id, user_id, token)
        return result_check
    
    return result if result is not None else {"status": "empty"}


    
# import asyncio
# # if __name__ == "__main__":
# #     token = "eyJhbGciOiJIUzI1NiJ9.eyJVc2VySWQiOiI0IiwiUm9sZXMiOiJDVVNUT01FUiIsInNlc3Npb25JZCI6ImJkM2M5MmNkLTczMzgtNDlmNS04NzIyLTUwMDU0Zjk5MjRhZSIsInN1YiI6ImxpbmgiLCJpYXQiOjE3NDg3NjcwNDUsImV4cCI6MTc0OTY2NzA0NX0.X4d4GcstDhaVC1nbPWWkN3sUEHNUltDtD5KgP_mzPrM"
# #     result = asyncio.run(multi_query_user("Tôi muốn thêm sản phẩm Yogurt Đào size S vào giỏ hàng và tôi quyết định mua sản phẩm này", 4 , "CUSTOMER", "VN","67d009fee0a638763885c195",token=token))
# #     print(result)
# if __name__ == "__main__":
#     result = asyncio.run(multi_query_user("Tôi muốn thêm trà chanh size L vào giỏ", 4, "CUSTOMER", "ADMIN","67d2fc6607b51a01e3beb501",""))
#     print(result)