from __future__ import annotations

import time
from dataclasses import dataclass
from typing import Any

from recorder import (
    list_input_devices,
    resolve_input_device,
    start_recording,
    stop_recording,
)


@dataclass(frozen=True)
class MicrophoneTestResult:
    ok: bool
    message: str


class AudioSettingsService:
    def list_input_devices(self) -> list[dict[str, Any]]:
        return list_input_devices()

    def resolve_input_device(self, input_spec: str | int | None) -> int | None:
        return resolve_input_device(input_spec)

    def test_microphone(
        self,
        input_spec: str | int | None,
        *,
        duration_sec: float = 0.35,
    ) -> MicrophoneTestResult:
        try:
            stream, record = start_recording(input_spec)
            time.sleep(duration_sec)
            audio = stop_recording(stream, record)
        except Exception as exc:
            return MicrophoneTestResult(
                ok=False,
                message=f"Microphone test failed: {exc}",
            )

        if getattr(audio, "size", 0) > 0:
            return MicrophoneTestResult(
                ok=True,
                message="Microphone test successful.",
            )
        return MicrophoneTestResult(
            ok=False,
            message="No audio captured. Try another device.",
        )