from __future__ import annotations

import tempfile, unittest
from pathlib import Path
from cadfs_to_cdsl.compare import compare_steps
from cadfs_to_cdsl.featurescript_parser import parse_featurescript
from cadfs_to_cdsl.lowering import lower_model


class IntegrationTests(unittest.TestCase):
    def test_known_rp_roundtrip_00000173(self):
        root = Path(__file__).parents[2] / "data/cadfs-sample/CADFS_test"
        feature = root / "featurescript_rp/0000/00000173.txt"; gold = root / "step_abc/0000/00000173.step"
        if not feature.exists() or not gold.exists(): self.skipTest("CADFS sample is not installed")
        cdsl = lower_model(parse_featurescript(feature.read_text(), "00000173"), {}).cdsl
        from engine.cdsl_engine.runtime import rebuild_cdsl
        with tempfile.TemporaryDirectory() as tmp:
            rebuilt = Path(tmp) / "rebuild.step"; rebuild_cdsl(cdsl, rebuilt, strict=True)
            comparison = compare_steps(gold, rebuilt)
        self.assertFalse(comparison["strict"]["passed"])
        self.assertTrue(comparison["rp"]["passed"])
        self.assertEqual(comparison["decision"], "approximate_pass")


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