import vk_api
import time
import datetime
import random

vk = vk_api.VkApi(token = "здесь токен был если что")
vk._auth_token()

while True:
    now = datetime.datetime.now()
    if str(now.hour) == "23":
        vk.method("messages.send",
                  {"peer_id": 292171486, "message": "Тест", "random_id": random.randint(1, 9999999)})
    try:
        messages = vk.method("messages.getConversations", {"offset": 0, "count": 20, "filter": "unanswered"})
        if messages["count"] >= 1:
            user_id = messages["items"][0]["last_message"]["from_id"]
            text_message = messages["items"][0]["last_message"]["text"]
            if text_message.lower() == "привет":
                vk.method("messages.send",
                          {"peer_id": user_id, "message": "Привет!", "random_id": random.randint(1, 9999999)})
            else:
                vk.method("messages.send",
                          {"peer_id": user_id, "message": "Не понял тебя!", "random_id": random.randint(1, 9999999)})
    except Exception as E:
        time.sleep(1)