from pydantic_settings import BaseSettings


class Settings(BaseSettings):
    """Gateway configuration, overridable via DESKLOCK_* environment variables."""

    tatlock_base_url: str = "http://tatlock.schweitz.internal:8000"
    tatlock_model: str = "Tatlock"

    # PCM rate of the device WebSocket contract (docs/architecture.md)
    sample_rate: int = 16000

    # "speaches" (shared speech container) or "embedded" (in-process models)
    stt_backend: str = "speaches"
    tts_backend: str = "speaches"

    speaches_base_url: str = "http://localhost:8601"
    stt_model: str = "Systran/faster-whisper-small"
    tts_model: str = "speaches-ai/Kokoro-82M-v1.0-ONNX"
    tts_voice: str = "bm_george"

    # embedded fallback only (requires the [speech] extra)
    embedded_stt_model: str = "small"
    embedded_stt_device: str = "cuda"
    embedded_tts_voice: str = "en_GB-alan-medium"

    model_config = {"env_prefix": "DESKLOCK_"}


settings = Settings()