"""
Celery async tasks para scrapers.
Usadas para procesamiento background de informes pesados.
En Fase 1 los scrapers corren inline en el endpoint (más simple).
En Fase 2 estos tasks permiten colas y reintentos automáticos.
"""
import asyncio
import logging
from app.tasks.celery_app import celery_app
from app.scrapers.arca_afip import ArcaAfipScraper
from app.scrapers.bcra import BcraScraper
from app.scrapers.boletin_oficial import BoletinOficialScraper

logger = logging.getLogger(__name__)


def run_async(coro):
    """Helper para correr corutinas async dentro de tasks síncronas de Celery."""
    loop = asyncio.new_event_loop()
    try:
        return loop.run_until_complete(coro)
    finally:
        loop.close()


@celery_app.task(bind=True, max_retries=3, default_retry_delay=5, name="tasks.fetch_arca")
def fetch_arca_task(self, cuit: str) -> dict:
    try:
        scraper = ArcaAfipScraper()
        return run_async(scraper.safe_fetch(cuit))
    except Exception as exc:
        logger.error(f"ARCA task error for {cuit}: {exc}")
        self.retry(exc=exc)


@celery_app.task(bind=True, max_retries=3, default_retry_delay=5, name="tasks.fetch_bcra")
def fetch_bcra_task(self, cuil: str) -> dict:
    try:
        scraper = BcraScraper()
        return run_async(scraper.safe_fetch(cuil))
    except Exception as exc:
        logger.error(f"BCRA task error for {cuil}: {exc}")
        self.retry(exc=exc)


@celery_app.task(bind=True, max_retries=2, default_retry_delay=10, name="tasks.fetch_boletin")
def fetch_boletin_task(self, query: str) -> dict:
    try:
        scraper = BoletinOficialScraper()
        return run_async(scraper.safe_fetch(query))
    except Exception as exc:
        logger.error(f"BO task error for {query}: {exc}")
        self.retry(exc=exc)