"""Dev-провайдер: вход без секрета по нику/идентификатору (только development)."""
from __future__ import annotations

from typing import Any

from app.auth.provider import AuthProvider, ExternalIdentity
from app.core.errors import ValidationError


class DevStubProvider(AuthProvider):
    name = "stub"

    def authenticate(self, payload: dict[str, Any]) -> ExternalIdentity:
        nickname = (payload.get("nickname") or "").strip()
        external_id = str(payload.get("external_id") or nickname).strip()
        if not external_id:
            raise ValidationError("Укажите никнейм для входа.")
        return ExternalIdentity(
            provider=self.name,
            external_id=external_id,
            suggested_nickname=nickname or external_id,
            raw=dict(payload),
        )