from dataclasses import dataclass

from anydi import singleton
from fansifter_common.auth.requests import AuthAccountFilterRequest
from fansifter_common.auth.services import AuthService
from fansifter_common.auth.types import Permission

from ows_text_campaigns.campaigns.dtos import (
    CampaignDetailedAnalytics,
)
from ows_text_campaigns.campaigns.services import CampaignService
from ows_text_campaigns.campaigns.utils import (
    extract_shortened_urls_from_markup,
)


@dataclass(kw_only=True)
class GetCampaignAnalyticsRequest(AuthAccountFilterRequest):
    campaign_id: str


@singleton
class GetCampaignAnalyticsHandler:
    permission = Permission("text_campaign", "view")

    def __init__(
        self,
        auth_service: AuthService,
        campaign_service: CampaignService,
    ) -> None:
        self.auth_service = auth_service
        self.campaign_service = campaign_service

    def handle(self, request: GetCampaignAnalyticsRequest) -> CampaignDetailedAnalytics:
        campaign = self.campaign_service.get_campaign(request.campaign_id)

        self.auth_service.authorize_account(
            request.identity_id,
            account=campaign.account,
            permission=self.permission,
        )

        short_urls = extract_shortened_urls_from_markup(campaign.get_content())

        has_shortened_urls = len(short_urls) > 0

        return self.campaign_service.get_campaign_analytics(
            campaign.id, has_shortened_urls
        )