core/database.py

import os
from sqlalchemy import create_engine
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
from dotenv import load_dotenv

load_dotenv()

# 1. Get the URL
DATABASE_URL = os.getenv("DATABASE_URL")

# 2. FIX: Convert postgres:// to postgresql:// for SQLAlchemy
if DATABASE_URL and DATABASE_URL.startswith("postgres://"):
    DATABASE_URL = DATABASE_URL.replace("postgres://", "postgresql://", 1)

# 3. Create the engine
engine = create_engine(
    DATABASE_URL,
    pool_pre_ping=True,
    pool_recycle=300,
)

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

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