import sys
import asyncio
from django.core.management import BaseCommand
from vacancies.main.bot import application
from langgraph.checkpoint.postgres import PostgresSaver
from vacancies.conf.settings import DB_URI


class Command(BaseCommand):
    help = "Run bot"

    def handle(self, *args, **options):
        with PostgresSaver.from_conn_string(DB_URI) as checkpointer:
            checkpointer.setup()

        if sys.platform == "win32":
            asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())

        application.run_polling()