from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, declarative_base
from app.core.settings import settings

if settings.cloud_sql_connection_name:
    # Cloud Run
    DATABASE_URL = (
        f"postgresql+psycopg2://{settings.db_user}:"
        f"{settings.db_password}@/"
        f"{settings.db_name}"
        f"?host=/cloudsql/{settings.cloud_sql_connection_name}"
    )
else:
    # Ambiente local
    DATABASE_URL = (
        f"postgresql+psycopg2://{settings.db_user}:"
        f"{settings.db_password}@"
        f"{settings.db_host}:"
        f"{settings.db_port}/"
        f"{settings.db_name}"
    )

engine = create_engine(
    DATABASE_URL, 
    echo=True,
    pool_pre_ping=True,
    pool_recycle=3600,
    connect_args={"connect_timeout": 10}
)

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

Base = declarative_base()