import logging
from typing import TYPE_CHECKING

from src import domain, dto

if TYPE_CHECKING:
    from .. import Usecase

log = logging.getLogger(__name__)


async def get_placement(self: 'Usecase', input: dto.GetPlacementInput) -> dto.PlacementOutput:
    async with self.database.transaction():
        placement = await self.database.get_placement(input.user_id, input.placement_id)
        if not placement:
            log.warning('Placement %s not found for user %s', input.placement_id, input.user_id)
            raise domain.PlacementNotFound(input.placement_id)

        return dto.PlacementOutput(
            id=placement.id,
            target_channel_id=placement.target_channel_id,
            target_channel_title=placement.target_channel.title,
            external_channel_id=placement.external_channel_id,
            external_channel_title=placement.external_channel.title,
            creative_id=placement.creative_id,
            creative_name=placement.creative.name,
            placement_date=placement.placement_date,
            cost=placement.cost,
            comment=placement.comment,
            ad_post_url=placement.ad_post_url,
            invite_link_type=placement.invite_link_type,
            invite_link=placement.invite_link,
            status=placement.status,
            subscriptions_count=placement.subscriptions_count,
            views_count=placement.views_count,
            views_availability=placement.views_availability,
            last_views_fetch_at=placement.last_views_fetch_at,
            created_at=placement.created_at,
        )