from dataclasses import dataclass

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

from dmp.ad_reporting.dtos import (
    AdReportingCampaignObjective,
    AdReportingCampaignObjectiveCriteria,
)
from dmp.ad_reporting.repositories import AdReportingCampaignRepository
from dmp.ad_reporting.services import AdReportingAccountService


@dataclass(kw_only=True)
class GetAdReportingCampaignsObjectivesRequest(AuthRequest):
    report_id: str | None = None


@singleton
class GetAdReportingCampaignsObjectivesHandler:
    permission = Permission("ad_campaign", "view")

    def __init__(
        self,
        auth_service: AuthService,
        campaign_repository: AdReportingCampaignRepository,
        account_service: AdReportingAccountService,
    ) -> None:
        self.auth_service = auth_service
        self.campaign_repository = campaign_repository
        self.account_service = account_service

    def handle(
        self, request: GetAdReportingCampaignsObjectivesRequest
    ) -> list[AdReportingCampaignObjective]:
        account_access = self.auth_service.authorize_for_permission(
            request.identity_id,
            permission=self.permission,
        )
        account_ids = self.account_service.get_allowed_account_ids(account_access)
        if not account_ids:
            return []

        return self.campaign_repository.find_unique_campaigns_objectives_by_criteria(
            AdReportingCampaignObjectiveCriteria(
                account_ids=account_ids, report_id=request.report_id
            ),
        )