import sqlalchemy
from sqlalchemy import create_engine
from sqlalchemy.orm import sessionmaker
from sqlalchemy.ext.declarative import declarative_base

from pydantic import BaseModel, ConfigDict

from fastapi import Depends
from sqlalchemy.orm import Session
from typing import Annotated

URL_DATABASE = "sqlite:///./kanban_clone.db"

engine = create_engine(URL_DATABASE, echo=True)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

Base = declarative_base()

def init_db() -> None:
    # Import models so they are registered with SQLAlchemy metadata
    import models  # noqa: F401
    Base.metadata.create_all(bind=engine)

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

db_dependency = Annotated[Session, Depends(get_db)]