from dataclasses import dataclass

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

from ows_text_campaigns.artist.services import ArtistSettingsService
from ows_text_campaigns.artist.validators import ArtistSettingsValidator
from ows_text_campaigns.assets.services import AssetService
from ows_text_campaigns.assets.types import UploadCredentials


@dataclass(kw_only=True)
class CreateArtistImageUploadCredentialsRequest(AuthRequest):
    global_participant_id: str
    filename: str


@singleton
class CreateArtistImageUploadCredentialsHandler:
    permission = Permission("text_campaign", "create")

    def __init__(
        self,
        asset_service: AssetService,
        artist_settings_service: ArtistSettingsService,
        artist_settings_validator: ArtistSettingsValidator,
    ) -> None:
        self.asset_service = asset_service
        self.artist_settings_service = artist_settings_service
        self.artist_settings_validator = artist_settings_validator

    def handle(
        self, request: CreateArtistImageUploadCredentialsRequest
    ) -> UploadCredentials:
        self.artist_settings_validator.validate_roster_access(
            identity_id=request.identity_id,
            global_participant_id=request.global_participant_id,
            permission=self.permission,
        )

        _ = self.artist_settings_service.get_settings(request.global_participant_id)

        return self.asset_service.generate_upload_credentials(
            key=self.artist_settings_service.create_asset_key(
                request.global_participant_id, filename=request.filename
            ),
        )