from urllib.parse import quote_plus
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker, declarative_base
from app.config import settings

DATABASE_URL = (
    f"mysql+pymysql://{quote_plus(settings.DB_USER)}:{quote_plus(settings.DB_PASSWORD)}"
    f"@{settings.DB_HOST}:{settings.DB_PORT}/{settings.DB_NAME}"
)

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()