import logging

from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine

from app.config import settings

engine = create_async_engine(
    settings.DATABASE_URL,
    #echo=settings.DEBUG,
    echo=False,
    pool_pre_ping=True,
    pool_size=settings.DATABASE_POOL_SIZE,
    max_overflow=settings.DATABASE_MAX_OVERFLOW,
    pool_timeout=settings.DATABASE_POOL_TIMEOUT,
)

# Отдельный пул для фонового монитора — не конкурирует с HTTP-запросами
monitor_engine = create_async_engine(
    settings.DATABASE_URL,
    echo=False,
    pool_pre_ping=True,
    pool_size=3,
    max_overflow=2,
    pool_timeout=60,
)


#if not settings.SQLALCHEMY_LOG:
#    for _log_name in ("sqlalchemy.engine", "sqlalchemy.pool", "sqlalchemy.dialects", "sqlalchemy.orm"):
#        logging.getLogger(_log_name).setLevel(logging.WARNING)

if not settings.SQLALCHEMY_LOG:
    for name in (
        "sqlalchemy.engine",
        "sqlalchemy.pool",
        "sqlalchemy.dialects",
        "sqlalchemy.orm",
    ):
        logger = logging.getLogger(name)
        logger.setLevel(logging.ERROR)
        logger.propagate = False

AsyncSessionLocal = async_sessionmaker(
    bind=engine,
    class_=AsyncSession,
    expire_on_commit=False,
    autoflush=False,
)

MonitorSessionLocal = async_sessionmaker(
    bind=monitor_engine,
    class_=AsyncSession,
    expire_on_commit=False,
    autoflush=False,
)