database.py

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

# Load environment variables
DB_USER = os.getenv("DB_USER", "root")
DB_PASSWORD = os.getenv("DB_PASSWORD", "")
DB_HOST = os.getenv("DB_HOST", "db")
DB_NAME = os.getenv("DB_DATABASE", "payitdb")
DB_PORT = os.getenv("DB_PORT", "3306")

# Correct variable name
DATABASE_URL = f"mysql+pymysql://{DB_USER}:{DB_PASSWORD}@{DB_HOST}:{DB_PORT}/{DB_NAME}"

# Create engine
engine = create_engine(DATABASE_URL, echo=True)

# Session maker
Session = sessionmaker(bind=engine, autoflush=False, autocommit=False)

# Base class for models
Base = declarative_base()

# Dependency for FastAPI routes
def get_db():
    db = Session()
    try:
        yield db
    finally:
        db.close()