"""Database connection module"""
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, declarative_base, Mapped
from typing import Generator

from luxx.config import config


# Create database engine
engine = create_engine(
    config.database_url,
    connect_args={"check_same_thread": False} if "sqlite" in config.database_url else {},
    echo=config.debug
)

# Create session factory
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

# Create base class
Base = declarative_base()


def get_db() -> Generator:
    """Dependency to get database session"""
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()


def init_db() -> None:
    """Initialize database, create all tables"""
    Base.metadata.create_all(bind=engine)