from __future__ import annotations

from dataclasses import dataclass


DEFAULT_SPEACHES_URL = "http://192.168.86.150:8000"
DEFAULT_HERMES_COMMAND = "hermes"
DEFAULT_HERMES_SOURCE = "friday-voice"
DEFAULT_CONFIRMED_THRESHOLD = 0.85
DEFAULT_PROBABLE_THRESHOLD = 0.70
DEFAULT_DATA_DIR = "/data"
DEFAULT_WHISPER_MODEL = "deepdml/faster-whisper-large-v3-turbo-ct2"
DEFAULT_TTS_MODEL = "speaches-ai/Kokoro-82M-v1.0-ONNX"
DEFAULT_TTS_VOICE = "af_nova"


@dataclass(slots=True)
class Settings:
    """Runtime settings for the FRIDAY voice gateway.

    Defaults match Jeremy's residence services from the wiki crawl.
    """

    speaches_url: str = DEFAULT_SPEACHES_URL
    hermes_command: str = DEFAULT_HERMES_COMMAND
    hermes_source: str = DEFAULT_HERMES_SOURCE
    speaker_confirmed_threshold: float = DEFAULT_CONFIRMED_THRESHOLD
    speaker_probable_threshold: float = DEFAULT_PROBABLE_THRESHOLD
    data_dir: str = DEFAULT_DATA_DIR
    whisper_model: str = DEFAULT_WHISPER_MODEL
    tts_model: str = DEFAULT_TTS_MODEL
    tts_voice: str = DEFAULT_TTS_VOICE

    @classmethod
    def from_env(cls, environ: dict[str, str] | None = None) -> "Settings":
        import os

        env = os.environ if environ is None else environ
        return cls(
            speaches_url=env.get("SPEACHES_URL", DEFAULT_SPEACHES_URL),
            hermes_command=env.get("HERMES_COMMAND", DEFAULT_HERMES_COMMAND),
            hermes_source=env.get("HERMES_SOURCE", DEFAULT_HERMES_SOURCE),
            data_dir=env.get("DATA_DIR", DEFAULT_DATA_DIR),
            whisper_model=env.get("WHISPER_MODEL", DEFAULT_WHISPER_MODEL),
            tts_model=env.get("TTS_MODEL", DEFAULT_TTS_MODEL),
            tts_voice=env.get("TTS_VOICE", DEFAULT_TTS_VOICE),
            speaker_confirmed_threshold=float(
                env.get("SPEAKER_CONFIRMED_THRESHOLD", DEFAULT_CONFIRMED_THRESHOLD)
            ),
            speaker_probable_threshold=float(
                env.get("SPEAKER_PROBABLE_THRESHOLD", DEFAULT_PROBABLE_THRESHOLD)
            ),
        )