bgg_api/src/modules/db_connection.py

from sqlmodel import create_engine, SQLModel, Session, select
from src.config import definitions
from typing import Union

from src.classes import boardgame_classes, play_classes

sqlite_url = definitions.SQLITE_URL


connect_args = {"check_same_thread": False}
engine = create_engine(sqlite_url, echo=False, connect_args=connect_args)

def get_session():
    with Session(engine) as session:
        return session

def add_boardgame(session: Session, boardgame: Union[
    boardgame_classes.BoardGame, boardgame_classes.BoardGameExpansion,
    boardgame_classes.OwnedBoardGame, boardgame_classes.OwnedBoardGameExpansion,
    boardgame_classes.WishlistBoardGame, boardgame_classes.WishlistBoardGameExpansion]):

    is_boardgame_present = len(session.exec(
        select(boardgame.__class__).where(boardgame.__class__.id == boardgame.id)
        ).all()) != 0

    if not is_boardgame_present:
        session.add(boardgame)

        session.commit()

def add_multiple_boardgames(session: Session, boardgame_list: list[Union[
    boardgame_classes.BoardGame, boardgame_classes.BoardGameExpansion,
    boardgame_classes.OwnedBoardGame, boardgame_classes.OwnedBoardGameExpansion,
    boardgame_classes.WishlistBoardGame, boardgame_classes.WishlistBoardGameExpansion]]):

    for boardgame in boardgame_list:
        is_boardgame_present = len(session.exec(
        select(boardgame.__class__).where(boardgame.__class__.id == boardgame.id)
        ).all()) != 0

        if not is_boardgame_present:
            session.add(boardgame)

    session.commit()

def get_boardgame(session: Session, boardgame_id: int) -> Union[
    boardgame_classes.BoardGame, boardgame_classes.BoardGameExpansion]:

    statement = select(boardgame_classes.BoardGame).where(boardgame_classes.BoardGame.id == boardgame_id)
    
    base_boardgames = session.exec(statement).all()

    statement = select(boardgame_classes.BoardGameExpansion).where(boardgame_classes.BoardGameExpansion.id == boardgame_id)

    expansion_boardgames = session.exec(statement).all()

    returned_boardgames = base_boardgames + expansion_boardgames

    if len(returned_boardgames) == 0:
        boardgame = None
    else:
        boardgame = returned_boardgames[0]

    return boardgame
   
def get_multiple_boardgames(session: Session, boardgame_ids: list[int]) -> tuple[Union[
    list[boardgame_classes.BoardGame], list[boardgame_classes.BoardGameExpansion]], list[int]]:

        statement = select(boardgame_classes.BoardGame).where(boardgame_classes.BoardGame.id.in_(boardgame_ids))
        results = session.exec(statement)

        boardgames = results.all()

        statement = select(boardgame_classes.BoardGameExpansion).where(boardgame_classes.BoardGameExpansion.id.in_(boardgame_ids))
        results = session.exec(statement)

        expansions = results.all()

        boardgames += expansions

        missing_boardgame_ids = list(filter(lambda x: x not in [boardgame.id for boardgame in boardgames], boardgame_ids))

        return boardgames, missing_boardgame_ids

def get_all_boardgames(session: Session, boardgame_type: SQLModel) -> Union[
    list[boardgame_classes.BoardGame], list[boardgame_classes.BoardGameExpansion],
    list[boardgame_classes.OwnedBoardGame], list[boardgame_classes.OwnedBoardGameExpansion],
    list[boardgame_classes.WishlistBoardGame], list[boardgame_classes.WishlistBoardGameExpansion]]:

    statement = select(boardgame_type)
        
    results = session.exec(statement)
    
    boardgame_list = results.all()

    return boardgame_list   

def add_play(session: Session, play: play_classes.Play):

    session.add(play)

    session.commit()
    session.refresh(play)

def add_multiple_plays(session: Session, play_list: list[play_classes.Play]):

    for play in play_list:
        is_play_present = len(session.exec(select(play_classes.Play).where(play_classes.Play.id == play.id)).all()) != 0

        if not is_play_present:
            session.add(play)

    session.commit()

def get_plays(session: Session) -> list[play_classes.Play]:
    statement = select(play_classes.Play)
    results = session.exec(statement)

    play_list = results.all()

    return play_list

def get_players_from_play(session: Session, play_id: int) -> list[play_classes.PlayPlayer]:
    statement = select(play_classes.PlayPlayer).where(play_classes.PlayPlayer.play_id == play_id)
    results = session.exec(statement)

    player_list = results.all()

    return player_list

def delete_database():
    SQLModel.metadata.drop_all(engine)


def create_db_and_tables():
    SQLModel.metadata.create_all(engine)