from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, declarative_base
import os
from dotenv import load_dotenv


load_dotenv()

DB_HOST = os.getenv("DB_HOST")
DB_PORT = os.getenv("DB_PORT")
DB_NAME = os.getenv("DB_NAME")
DB_USER = os.getenv("DB_USER")
DB_PASSWORD = os.getenv("DB_PASSWORD")

DATABASE_URL = (
    f"postgresql://{DB_USER}:{DB_PASSWORD}"
    f"@{DB_HOST}:{DB_PORT}/{DB_NAME}"
)

# DATABASE_URL = "postgresql://postgres:postgres@172.16.10.178:5444/postgres"

engine = create_engine(
    DATABASE_URL,
    pool_pre_ping=True
)

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

Base = declarative_base()


def get_db():
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()