import os
import sys
import tempfile
import unittest
from pathlib import Path
from unittest.mock import patch

ROOT = Path(__file__).resolve().parents[1]
SRC = ROOT / "src"
if str(SRC) not in sys.path:
    sys.path.insert(0, str(SRC))

import leld
from config import Config


class FakeDesktop:
    def __init__(self):
        self.inject_calls = []
        self.quit_calls = 0

    def inject_text(self, text: str, backend: str) -> None:
        self.inject_calls.append((text, backend))

    def request_quit(self) -> None:
        self.quit_calls += 1


class FakeSegment:
    def __init__(self, text: str):
        self.text = text


class FakeModel:
    def transcribe(self, _audio, language=None, vad_filter=None):
        return [FakeSegment("hello world")], {"language": language, "vad_filter": vad_filter}


class FakeAudio:
    def __init__(self, size: int):
        self.size = size


class DaemonTests(unittest.TestCase):
    def _config(self) -> Config:
        cfg = Config()
        cfg.ai.enabled = False
        cfg.logging.log_transcript = False
        return cfg

    @patch("leld._build_whisper_model", return_value=FakeModel())
    @patch("leld.stop_audio_recording", return_value=FakeAudio(8))
    @patch("leld.start_audio_recording", return_value=(object(), object()))
    def test_toggle_start_stop_injects_text(self, _start_mock, _stop_mock, _model_mock):
        desktop = FakeDesktop()
        daemon = leld.Daemon(self._config(), desktop, verbose=False)
        daemon._start_stop_worker = (
            lambda stream, record, trigger, process_audio: daemon._stop_and_process(
                stream, record, trigger, process_audio
            )
        )

        daemon.toggle()
        self.assertEqual(daemon.get_state(), leld.State.RECORDING)

        daemon.toggle()

        self.assertEqual(daemon.get_state(), leld.State.IDLE)
        self.assertEqual(desktop.inject_calls, [("hello world", "clipboard")])

    @patch("leld._build_whisper_model", return_value=FakeModel())
    @patch("leld.stop_audio_recording", return_value=FakeAudio(8))
    @patch("leld.start_audio_recording", return_value=(object(), object()))
    def test_shutdown_stops_recording_without_injection(self, _start_mock, _stop_mock, _model_mock):
        desktop = FakeDesktop()
        daemon = leld.Daemon(self._config(), desktop, verbose=False)
        daemon._start_stop_worker = (
            lambda stream, record, trigger, process_audio: daemon._stop_and_process(
                stream, record, trigger, process_audio
            )
        )

        daemon.toggle()
        self.assertEqual(daemon.get_state(), leld.State.RECORDING)

        self.assertTrue(daemon.shutdown(timeout=0.2))
        self.assertEqual(daemon.get_state(), leld.State.IDLE)
        self.assertEqual(desktop.inject_calls, [])


class LockTests(unittest.TestCase):
    def test_lock_rejects_second_instance(self):
        with tempfile.TemporaryDirectory() as td:
            with patch.dict(os.environ, {"XDG_RUNTIME_DIR": td}, clear=False):
                first = leld._lock_single_instance()
                try:
                    with self.assertRaises(SystemExit) as ctx:
                        leld._lock_single_instance()
                    self.assertIn("already running", str(ctx.exception))
                finally:
                    first.close()


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