from tortoise.exceptions import ValidationError
from tortoise.validators import Validator
import typing
from services.exoValidation import get_support_from_data

class ExoSourceValidator(Validator):
    """
    A validator to validate ...
    """

    def __call__(self, value: typing.IO):
        exo_supports_compatibility = get_support_from_data(
            value.read())
        if not exo_supports_compatibility['isPdf'] and not exo_supports_compatibility['isCsv'] and not exo_supports_compatibility['isWeb']:
            raise ValidationError(
                '[Error] : Exercice non valide (compatible avec aucun support)')