import pathlib
import sys
import unittest

ROOT = pathlib.Path(__file__).resolve().parents[1]
sys.path.insert(0, str(ROOT / "blender-5.2.0/source/blender/web_engine"))
import extract_modifier_accessors as extractor
from extract_id_property_rna import function


class ModifierAccessorTests(unittest.TestCase):
    def source(self):
        source = ROOT / "build_web_blender6/source/blender/makesrna/intern/rna_modifier_gen.cc"
        if not source.exists():
            self.skipTest("makesrna output has not been built")
        return source.read_text()

    def test_each_field_uses_original_generated_accessors(self):
        source = self.source()
        output = extractor.generate(source)
        for modifier, fields in extractor.FIELDS.items():
            for name, _, _, _ in fields:
                for operation in ("get", "set"):
                    self.assertIn(function(source, f"{modifier}Modifier_{name}_{operation}")[1], output)
        self.assertEqual(output, extractor.generate(source))

    def test_missing_source_accessor_rejects_generation(self):
        source = self.source().replace("BevelModifier_segments_set", "Removed_segments_set")
        with self.assertRaisesRegex(ValueError, "Missing generated function"):
            extractor.generate(source)

    def test_schema_field_names_are_unique_and_numeric_bounds_are_valid(self):
        for fields in extractor.FIELDS.values():
            self.assertEqual(len(fields), len({field[0] for field in fields}))
            for _, kind, lower, upper in fields:
                if kind.startswith("bool"):
                    self.assertIsNone(lower)
                    self.assertIsNone(upper)
                else:
                    self.assertLess(lower, upper)


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