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.models import FacebookPage
from campaigns.meta.repositories import FacebookPageRepository


@dataclass(frozen=True)
class GetFacebookUserPagesRequest:
    user: User


@dataclass
class GetFacebookUserPagesHandler(
    Handler[GetFacebookUserPagesRequest, list[FacebookPage]],
):
    db: Database
    facebook_page_repository: FacebookPageRepository

    @session_context(in_transaction=False)
    async def handle(self, request: GetFacebookUserPagesRequest) -> list[FacebookPage]:
        pages = await self.facebook_page_repository.find_by_identity_id(
            identity_id=request.user.id.identity_id
        )
        return sorted(pages, key=lambda page: page.name)