"""
Database Configuration
"""

from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from sqlalchemy.pool import StaticPool
import os

# Database URL from environment
DATABASE_URL = os.getenv(
    "DATABASE_URL",
    "postgresql://grimlock:grimlock@localhost:5432/grimlock"
)

# Create engine
engine = create_engine(
    DATABASE_URL,
    echo=os.getenv("DEBUG", "false").lower() == "true",
    pool_pre_ping=True,
    pool_size=10,
    max_overflow=20
)

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

# Dependency to get DB session
def get_db():
    """FastAPI dependency for database sessions"""
    db = SessionLocal()
    try:
        yield db
    finally:
        db.close()