"""
Database configuration and session management
"""

from sqlalchemy.ext.asyncio import AsyncSession, create_async_engine
from sqlalchemy.orm import sessionmaker, declarative_base

from app.core.config import settings

engine = create_async_engine(
    settings.DATABASE_URL,
    echo=settings.DATABASE_ECHO,
    future=True,
    pool_size=10,
    max_overflow=20,
    pool_timeout=30,
    pool_pre_ping=True,
    pool_recycle=3600,
    connect_args={
        "server_settings": {
            "jit": "off"
        }
    }
)

# Create async session factory
AsyncSessionLocal = sessionmaker(
    engine,
    class_=AsyncSession,
    expire_on_commit=False
)

# Create base class for models
Base = declarative_base()

# Dependency to get DB session
async def get_db():
    async with AsyncSessionLocal() as session:
        try:
            yield session
        finally:
            await session.close()