from __future__ import annotations

from pathlib import Path

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

from app.core.config import settings


class Base(DeclarativeBase):
    pass


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


@event.listens_for(engine, "connect")
def _set_sqlite_pragma(dbapi_connection, connection_record) -> None:  # noqa: ANN001
    cursor = dbapi_connection.cursor()
    cursor.execute("PRAGMA journal_mode=WAL")
    cursor.execute("PRAGMA foreign_keys=ON")
    cursor.close()


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


def init_db() -> None:
    Path(settings.app.db_path).parent.mkdir(parents=True, exist_ok=True)
    Base.metadata.create_all(bind=engine)


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