from dataclasses import dataclass

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

from email_campaigns.fonts.cache import GoogleFontsCache
from email_campaigns.fonts.services.google_fonts import GoogleFont, GoogleFontsService

_DEFAULT_LIMIT = 100


@dataclass(kw_only=True)
class GetGoogleFontsRequest(AuthRequest):
    search: str | None = None
    limit: int = _DEFAULT_LIMIT


@singleton
class GetGoogleFontsHandler:
    def __init__(
        self,
        service: GoogleFontsService,
        cache: GoogleFontsCache,
    ) -> None:
        self.service = service
        self.cache = cache

    def handle(self, request: GetGoogleFontsRequest) -> list[GoogleFont]:
        if not self.cache.is_populated():
            fonts = self.service.get_fonts()
            self.cache.populate(fonts)
        return self.cache.search(request.search, request.limit)