from __future__ import annotations

import json, tempfile, unittest
from pathlib import Path
from cadfs_to_cdsl.featurescript_parser import parse_featurescript
from cadfs_to_cdsl.lowering import lower_model
from cadfs_to_cdsl.pipeline import convert_one
from cadfs_to_cdsl.dataset import Sample
from cadfs_to_cdsl.dataset import scan_dataset
from cadfs_to_cdsl.tests.test_parser import SOURCE


class LoweringTests(unittest.TestCase):
    def test_missing_dataset_fails_explicitly(self):
        with tempfile.TemporaryDirectory() as tmp:
            with self.assertRaises(FileNotFoundError): scan_dataset(Path(tmp) / "missing")

    def test_circle_extrude_is_valid_cdsl_11(self):
        result = lower_model(parse_featurescript(SOURCE, "00000173"), {})
        self.assertEqual(result.status, "converted_complete")
        self.assertEqual(result.cdsl["schema_version"], "1.1.0")
        self.assertEqual(result.cdsl["geometry"]["sketches"][0]["profile"]["radius_mm"], 9.53)
        from engine.cdsl_engine.semantic_validation import validate_semantic_cdsl
        self.assertTrue(validate_semantic_cdsl(result.cdsl)["future_rebuild_ready"])

    def test_unsupported_operation_is_audited_not_invented(self):
        source = SOURCE.replace('extrude(context, id + "F1",', 'shell(context, id + "F1",')
        result = lower_model(parse_featurescript(source, "00000173"), {})
        self.assertEqual(result.status, "deferred_no_executable_feature")
        self.assertIsNone(result.cdsl)
        self.assertEqual(result.diagnostics[0]["code"], "unsupported_operation")

    def test_conversion_writes_status_and_sidecars(self):
        with tempfile.TemporaryDirectory() as tmp:
            root = Path(tmp); source = root / "00000173.txt"; source.write_text(SOURCE)
            sample = Sample("00000173", {"featurescript": str(source)}, {"featurescript": "x"})
            status = convert_one(sample, root / "out", force=True)
            directory = root / "out/samples/00000173"
            self.assertEqual(status["conversion_status"], "converted_complete")
            for name in ("candidate.cdsl.json", "history.json", "diagnostics.json", "status.json"):
                self.assertTrue((directory / name).exists(), name)
            self.assertEqual(json.loads((directory / "candidate.cdsl.json").read_text())["part_id"], "00000173")


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