import os
from dotenv import load_dotenv
import cx_Oracle

load_dotenv()

def get_connection():
    try:
        user = os.getenv("DB_USER")
        password = os.getenv("DB_PASSWORD")
        host = os.getenv("DB_HOST")
        port = os.getenv("DB_PORT", "1521")
        sid = os.getenv("DB_SID")

        dsn = cx_Oracle.makedsn(host, port, sid=sid)

        connection = cx_Oracle.connect(user=user, password=password, dsn=dsn)

        return connection
    except cx_Oracle.DatabaseError as e:
        print(f"Error al conectar a la base de datos: {e}")
        raise