from anydi import singleton

from email_campaigns.adapters.db import Repository
from email_campaigns.adapters.stripo import AutomatedStripoClientV2
from email_campaigns.automated.models import AutomatedEmail
from email_campaigns.emails.cache import EmailPublicPreviewCache
from email_campaigns.emails.canonicalize import canonicalize
from email_campaigns.emails.handlers import (
    AutosaveEmailV2Handler,
    AutosaveEmailV2Request,
)


@singleton
class AutosaveAutomatedEmailV2Handler(AutosaveEmailV2Handler[AutomatedEmail]):
    def __init__(
        self,
        email_repository: Repository[AutomatedEmail],
        preview_cache: EmailPublicPreviewCache,
        stripo_client: AutomatedStripoClientV2,
    ) -> None:
        super().__init__(
            email_repository=email_repository,
            preview_cache=preview_cache,
            stripo_client=stripo_client,
        )

    def handle(self, request: AutosaveEmailV2Request) -> None:
        email = self.email_repository.get(request.email_id)
        if email is not None and email.is_automated:
            self.authenticate(request)

            response = self.stripo_client.get_html_css(
                email_id=request.email_id,
                user_id=request.user_id,
            )
            email.has_unapplied_changes = canonicalize(
                response.html, response.css
            ) != canonicalize(email.html_content, email.css_content)
            email.updated_by = request.user_id
            self.email_repository.save(email)
            return

        super().handle(request)