from dataclasses import dataclass

from campaigns.auth.dtos import User
from campaigns.connectors.db import Database, session_context
from campaigns.core.handler import Handler
from campaigns.meta.dtos import CampaignValidationSummary
from campaigns.meta.models import Campaign
from campaigns.meta.services import CampaignService
from campaigns.meta.validators import CampaignValidator


@dataclass(frozen=True)
class GetCampaignOverviewRequest:
    user: User
    campaign_id: str
    camelize: bool = True


@dataclass
class GetCampaignOverviewResponse:
    campaign: Campaign
    summary: list[CampaignValidationSummary]


@dataclass
class GetCampaignOverviewHandler(
    Handler[GetCampaignOverviewRequest, GetCampaignOverviewResponse],
):
    db: Database
    campaign_service: CampaignService
    campaign_validator: CampaignValidator

    @session_context(in_transaction=False)
    async def handle(
        self, request: GetCampaignOverviewRequest
    ) -> GetCampaignOverviewResponse:
        campaign = await self.campaign_service.get_user_campaign(
            user=request.user, campaign_id=request.campaign_id
        )
        summary = await self.campaign_validator.get_summary(
            campaign, user=request.user, camelize=request.camelize
        )
        return GetCampaignOverviewResponse(campaign=campaign, summary=summary)