"""The app shell must request scripts and stylesheets under a version that follows their content."""
import os
import tempfile
import time
import unittest
from pathlib import Path

os.environ.setdefault("CONFIG_DIR", tempfile.mkdtemp(prefix="ttvc-assetv-"))


class AssetBuildIdTests(unittest.TestCase):
    def test_the_index_rewrites_every_static_asset_version(self):
        import asyncio
        from routes.admin import asset_build_id, index
        response = asyncio.run(index())
        html = response.body.decode("utf-8")
        build = asset_build_id()
        self.assertIn(f"/static/style.css?v={build}", html)
        self.assertIn(f"/static/loader.js?v={build}", html)
        self.assertNotIn("?v=1.53.4", html)
        self.assertEqual(response.headers["cache-control"], "no-store, max-age=0")

    def test_the_build_id_changes_when_a_script_changes_and_not_otherwise(self):
        from core.constants import STATIC_DIR
        from routes.admin import asset_build_id
        first = asset_build_id()
        self.assertEqual(first, asset_build_id())
        probe = Path(STATIC_DIR) / "js" / "magazine.js"
        original = probe.stat().st_mtime
        try:
            os.utime(probe, (original + 1_000_000, original + 1_000_000))
            self.assertNotEqual(first, asset_build_id())
        finally:
            os.utime(probe, (original, original))
        self.assertEqual(first, asset_build_id())


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