from database.models import Base
import logging.config
from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession
from sqlalchemy import event
from config import DATABASE_URL

from logger_helper.logger_helper import LOGGING_CONFIG

logging.config.dictConfig(LOGGING_CONFIG)
logger = logging.getLogger("database")


async_engine = create_async_engine(
    DATABASE_URL,
    echo=False,
    connect_args={"check_same_thread": False}
)

@event.listens_for(async_engine.sync_engine, "connect")
def _enable_foreign_keys(dbapi_connection, connection_record):
    cursor = dbapi_connection.cursor()
    cursor.execute("PRAGMA foreign_keys=ON")
    cursor.close()

async_session = async_sessionmaker(
    async_engine,
    class_=AsyncSession,
    expire_on_commit=False
)

async def init_db():
    try:
        async with async_engine.begin() as conn:
            await conn.run_sync(Base.metadata.create_all)
        logger.info("Database initialized.")
    except Exception as e:
        logger.error("Database initialization failed: %s", e, exc_info=True)