"""Синхронное подключение к PostgreSQL и MinIO для индексер-воркера."""

import logging
from contextlib import contextmanager
from typing import Generator

from minio import Minio
from sqlalchemy import create_engine
from sqlalchemy.orm import Session, sessionmaker

from app.config import settings

logger = logging.getLogger(__name__)

# Синхронный движок SQLAlchemy
engine = create_engine(
    settings.database_url_sync,
    pool_size=5,
    max_overflow=10,
    pool_pre_ping=True,
    pool_recycle=3600,
)

SessionLocal = sessionmaker(bind=engine, autocommit=False, autoflush=False)


@contextmanager
def db_session() -> Generator[Session, None, None]:
    """Контекстный менеджер для сессии БД."""
    session = SessionLocal()
    try:
        yield session
        session.commit()
    except Exception:
        session.rollback()
        raise
    finally:
        session.close()


_minio_client: Minio | None = None


def get_minio() -> Minio:
    """Получить или создать MinIO клиент."""
    global _minio_client
    if _minio_client is None:
        _minio_client = Minio(
            settings.MINIO_ENDPOINT,
            access_key=settings.MINIO_ACCESS_KEY,
            secret_key=settings.MINIO_SECRET_KEY,
            secure=False,
        )
    return _minio_client


def update_task_status(task_id: str, status: str, error: str | None = None) -> None:
    """Обновить статус задачи в БД."""
    from app.models import Task

    with db_session() as session:
        task = session.get(Task, task_id)
        if task:
            task.status = status
            if error:
                task.error = error
            session.commit()