from dataclasses import dataclass

from anydi import singleton

from ows_text_campaigns.artist.exceptions import ArtistSettingsNotFoundError
from ows_text_campaigns.artist.services import ArtistSettingsService
from ows_text_campaigns.config import Settings


@dataclass(kw_only=True)
class GetArtistSettingsByPhoneNumberRequest:
    phone_number: str


@dataclass(kw_only=True, frozen=True)
class GetArtistSettingsByPhoneNumberResponse:
    artist_name: str
    global_participant_id: str
    opt_in_message: str
    opt_in_message_terms: str
    reopt_in_message: str
    welcome_message: str
    welcome_message_instructions: str
    info_message: str
    vcard_url: str | None


@singleton
class GetArtistSettingsByPhoneNumberHandler:
    def __init__(
        self, artist_settings_service: ArtistSettingsService, settings: Settings
    ) -> None:
        self.artist_settings_service = artist_settings_service
        self.settings = settings

    def handler(
        self, request: GetArtistSettingsByPhoneNumberRequest
    ) -> GetArtistSettingsByPhoneNumberResponse:
        artist_settings = self.artist_settings_service.get_settings_by_phone_number(
            phone_number=request.phone_number
        )
        artist_phone_number = next(
            (
                n
                for n in artist_settings.phone_numbers
                if n.phone_number == request.phone_number
            ),
            None,
        )
        if not artist_phone_number:
            raise ArtistSettingsNotFoundError
        return GetArtistSettingsByPhoneNumberResponse(
            artist_name=artist_settings.artist_name,
            global_participant_id=artist_settings.global_participant_id,
            opt_in_message=artist_settings.opt_in_message,
            opt_in_message_terms=self.settings.artist_opt_in_message_terms,
            reopt_in_message=self.settings.artist_reopt_in_message,
            welcome_message=artist_settings.welcome_message,
            welcome_message_instructions=self.settings.artist_welcome_message_instructions,
            info_message=self.settings.artist_info_message,
            vcard_url=artist_phone_number.vcard_url,
        )