from anydi import singleton
from fansifter_common.auth.account import Account

from email_campaigns.automated.exceptions import AutomatedEmailUniqueNameError
from email_campaigns.automated.models import AutomatedEmail
from email_campaigns.automated.repositories import AutomatedEmailRepository


@singleton
class AutomatedEmailValidator:
    def __init__(self, automated_email_repository: AutomatedEmailRepository):
        self.automated_email_repository = automated_email_repository

    def validate_name(
        self,
        name: str,
        *,
        account: Account,
        automated_email: AutomatedEmail | None = None,
    ) -> None:
        if self.automated_email_repository.exists_by_name_and_account(
            name=name,
            account=account,
            exclude=[automated_email.id] if automated_email else None,
        ):
            raise AutomatedEmailUniqueNameError