import sqlite3

from sqlalchemy import create_engine, event
from sqlalchemy.orm import DeclarativeBase, sessionmaker

from app.config import get_settings

settings = get_settings()

engine = create_engine(
    f"sqlite:///{settings.sqlite_path}",
    connect_args={"check_same_thread": False},
)


@event.listens_for(engine, "connect")
def _enable_foreign_keys(dbapi_connection, _):
    if isinstance(dbapi_connection, sqlite3.Connection):
        dbapi_connection.execute("PRAGMA foreign_keys=ON")


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


class Base(DeclarativeBase):
    pass


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