# app/database.py
from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

# SQLALCHEMY_DATABASE_URL = "sqlite:///./sql_app.db"
#SQLALCHEMY_DATABASE_URL = "mysql+mysqlconnector://root:secret@localhost:3306/test"  # Przykład dla MySQL
SQLALCHEMY_DATABASE_URL = "postgresql+psycopg2://admin:pass@localhost:5432/crypto"

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

Base = declarative_base()

# Test connection
from sqlalchemy import text

with engine.connect() as conn:
    result = conn.execute(text("select 'hello world'"))
    print(result.all())