from dataclasses import dataclass

from anydi import singleton
from fansifter_common.auth.account import Account
from fansifter_common.auth.requests import AuthRequest
from fansifter_common.auth.services import AuthService
from fansifter_common.auth.types import Permission

from email_campaigns.automated.repositories import AutomatedEmailRepository
from email_campaigns.emails.exceptions import EmailNotFoundError


@dataclass(kw_only=True)
class GetAutomatedEmailStatusRequest(AuthRequest):
    email_id: str


@dataclass
class AutomatedEmailStatusResponse:
    has_unapplied_changes: bool
    is_automated: bool


@singleton
class GetAutomatedEmailStatusHandler:
    permission = Permission("email_campaign", "view")

    def __init__(
        self,
        auth_service: AuthService,
        automated_email_repository: AutomatedEmailRepository,
    ) -> None:
        self.auth_service = auth_service
        self.automated_email_repository = automated_email_repository

    def handle(
        self, request: GetAutomatedEmailStatusRequest
    ) -> AutomatedEmailStatusResponse:
        status = self.automated_email_repository.get_status(request.email_id)
        if status is None:
            raise EmailNotFoundError

        self.auth_service.authorize_account(
            request.identity_id,
            account=Account(
                vendor_id=status.vendor_id,
                subaccount_id=status.subaccount_id,
            ),
            permission=self.permission,
        )

        return AutomatedEmailStatusResponse(
            has_unapplied_changes=status.has_unapplied_changes,
            is_automated=status.is_automated,
        )