"""Check sound metadata against shipped resources without regenerating audio."""
import ast
import json
from pathlib import Path
import unittest

from airdef_assets.catalog import load_sounds, sound_events

ROOT = Path(__file__).resolve().parents[1]


class SoundCatalogTests(unittest.TestCase):
    def test_registry_and_audio_files_match_catalog(self):
        assets = ROOT / "airdef-mod/assets/airdef"
        expected = sound_events(load_sounds())
        actual = json.loads((assets / "sounds.json").read_text(encoding="utf-8"))
        self.assertEqual(actual, expected)
        files = {sound["name"].split(":", 1)[1] + ".ogg"
                 for event in expected.values() for sound in event["sounds"]}
        self.assertEqual(files, {path.name for path in (assets / "sounds").glob("*.ogg")})

    def test_every_catalog_event_has_one_synthesizer(self):
        source = (ROOT / "tools/gen_sounds.py").read_text(encoding="utf-8")
        tree = ast.parse(source)
        mapping = next(node.value for node in tree.body if isinstance(node, ast.Assign)
                       and any(isinstance(target, ast.Name) and target.id == "SYNTHESIZERS"
                               for target in node.targets))
        keys = [ast.literal_eval(key) for key in mapping.keys]
        self.assertEqual(len(keys), len(set(keys)))
        # Synthesis uses a shared random stream, so changing order changes the audio.
        self.assertEqual(keys, [entry["event"] for entry in load_sounds()])


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