from __future__ import annotations

import unittest

from owner_voice_pet.models import AudioFrame, AudioSegment, PlaybackResult, TransportHealth
from owner_voice_pet.real_live_check import FixtureLiveAudioTransport


def frame(idx: int) -> AudioFrame:
    return AudioFrame(b"\x00\x00", 16000, 1, idx * 20, idx, {"duration_ms": 20})


class FakeOutputTransport:
    def __init__(self) -> None:
        self.played: list[AudioSegment] = []

    def play_pcm(self, segment: AudioSegment, interrupt: bool = False) -> PlaybackResult:
        self.played.append(segment)
        return PlaybackResult(True, segment.duration_ms)

    def health(self) -> TransportHealth:
        return TransportHealth(True, True, "fake")


class RealLiveCheckTests(unittest.TestCase):
    def test_fixture_transport_flush_preserves_generated_future_frames(self) -> None:
        transport = FixtureLiveAudioTransport([frame(1), frame(2)], play_audio=False)
        transport.start_input()

        self.assertEqual(transport.flush_input(), 0)
        self.assertEqual(transport.flush_count, 1)
        self.assertEqual([item.frame_id for item in transport.read_frames(10)], [1])

    def test_fixture_transport_can_delegate_real_playback(self) -> None:
        output = FakeOutputTransport()
        transport = FixtureLiveAudioTransport([], play_audio=True, output_transport=output)
        segment = AudioSegment(b"\x00\x00", 16000, 1, 0, 20)

        result = transport.play_pcm(segment)

        self.assertTrue(result.played)
        self.assertEqual(output.played, [segment])
        self.assertEqual(transport.played_segments, [segment])


if __name__ == "__main__":
    unittest.main()