from dataclasses import dataclass

from campaigns.connectors.facebook.base import FacebookClient
from campaigns.meta.dtos import InstagramAccount
from campaigns.meta.models import FacebookPage

from .facebook_page_token import FacebookPageTokenService


@dataclass
class InstagramAccountService:
    facebook_client: FacebookClient
    facebook_page_token_service: FacebookPageTokenService

    async def get_instagram_account_for_facebook_page(
        self, page: FacebookPage
    ) -> InstagramAccount | None:
        page_token = await self.facebook_page_token_service.decrypt_token(page)

        instagram_business_account_id = (
            await self.facebook_client.get_instagram_business_account_for_page(
                page_id=page.external_id,
                page_access_token=page_token,
            )
        )

        if not instagram_business_account_id:
            return None

        instagram_business_account = (
            await self.facebook_client.get_instagram_business_account(
                instagram_business_account_id=instagram_business_account_id.id,
                page_access_token=page_token,
            )
        )
        return InstagramAccount.from_api_obj(instagram_business_account)