from sqlalchemy import create_engine
from sqlalchemy.orm import DeclarativeBase, sessionmaker

from backend.core.settings import get_settings

settings = get_settings()

DATABASE_URL = (
    f"postgresql+psycopg://"
    f"{settings.POSTGRES_USER}:"
    f"{settings.POSTGRES_PASSWORD}@"
    f"{settings.POSTGRES_HOST}:"
    f"{settings.POSTGRES_PORT}/"
    f"{settings.POSTGRES_DB}"
)

engine = create_engine(
    DATABASE_URL,
    pool_pre_ping=True,
    future=True,
)

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


class Base(DeclarativeBase):
    pass