import json
import tempfile
import unittest
from pathlib import Path

from library import default_label, load_config, save_config, scan_audio_files


class LibraryTests(unittest.TestCase):
    def test_scan_filters_and_sorts_supported_audio(self):
        with tempfile.TemporaryDirectory() as directory:
            root = Path(directory)
            for filename in ("02_b.WAV", "01_a.mp3", "memo.txt"):
                (root / filename).touch()
            self.assertEqual(
                [path.name for path in scan_audio_files(directory)],
                ["01_a.mp3", "02_b.WAV"],
            )

    def test_default_label_removes_number_prefix(self):
        self.assertEqual(default_label(Path("01_和太鼓でドン.mp3")), "和太鼓でドン")

    def test_config_round_trip(self):
        with tempfile.TemporaryDirectory() as directory:
            path = save_config(
                directory,
                [{"filename": "se.mp3", "label": "SE", "icon": "INFO", "icon_path": ""}],
            )
            self.assertTrue(path.is_file())
            self.assertEqual(load_config(directory)["items"]["se.mp3"]["label"], "SE")
            json.loads(path.read_text(encoding="utf-8"))


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