"""What email translation offers (app/translation.py), for the reading pane."""

from __future__ import annotations

from fastapi import APIRouter
from pydantic import BaseModel

from app import translation
from app.identity.deps import CurrentUser

router = APIRouter(prefix="/translation", tags=["mail"])


class LanguageOut(BaseModel):
    code: str
    name: str


class TranslationInfoOut(BaseModel):
    available: bool
    languages: list[LanguageOut]


@router.get("/languages", response_model=TranslationInfoOut)
async def translation_languages(user: CurrentUser) -> TranslationInfoOut:
    found = await translation.languages()
    return TranslationInfoOut(
        available=len(found) > 1,  # English alone translates nothing
        languages=[LanguageOut(code=x.code, name=x.name) for x in found],
    )