from .db.sql_provider import SQLProvider
from .db.work import select_list
from flask import current_app, session
from dataclasses import dataclass
import os

@dataclass
class InfoRespronse:
    result: tuple
    error_message: str
    status: bool

sql_provider = SQLProvider(os.path.join(os.path.dirname(__file__), 'sql'))

def clear():
    if session.get('basket',{}):
        session.pop('basket')

def workpiece_list() -> InfoRespronse:
    _sql = sql_provider.get('goods.sql', {})
    result = select_list(current_app.config['db_config'], _sql)
    if result is None:
        return InfoRespronse((), 
                             error_message = 'Ошибка в подключении к базе данных. Свяжитесь с администратором', 
                             status=False)
    return InfoRespronse(result, error_message='', status=True)