from typing import List

from server.db.models.users import Favorites
from server.domains.users import settings


def sum_accounts(favorites_list: List[Favorites]) -> List[Favorites]:
    """Sum favorites by entity ID and type.

    Args:
        favorites_list: Favorites objects list.

    Returns:
        List of favorites with a new 'accounts' field as a sum of all accounts that starred this entity.

    """
    result = {}
    for item in favorites_list:
        key = (item.entity_id, item.entity_type)
        if key not in result:
            result[key] = item
            item.accounts = [item.account]
        else:
            result[key].accounts.append(item.account)
    return list(result.values())


def set_single_settings(data: list):
    """Set single settings item.

    Args:
        data: List of favorites.

    """
    for item in data:
        settings.set_single_settings(item.accounts)