import unittest

from dns_sync.adapters import (
    CERTIFICATES,
    PROXY_HOSTS,
    DiscoveredObject,
    ObjectReference,
)
from dns_sync.object_normalizer import normalize_discovered_object


class ReferenceNormalizationTests(unittest.TestCase):
    def test_adapter_reference_survives_central_normalization(self):
        certificate = ObjectReference(
            relation="certificate",
            object_type=CERTIFICATES,
            local_key="67",
        )
        discovered = DiscoveredObject(
            object_type=PROXY_HOSTS,
            local_key="12",
            payload={
                "domain_names": ["app.example.com"],
                "forward_scheme": "http",
                "forward_host": "192.168.1.20",
                "forward_port": 8080,
                "enabled": True,
            },
            references=[certificate],
        )

        normalized = normalize_discovered_object(discovered)

        self.assertIsInstance(discovered.references, tuple)
        self.assertEqual(normalized.references, (certificate,))
        self.assertEqual(
            normalized.references[0].local_key,
            "67",
        )
        self.assertIsNone(
            normalized.references[0].logical_key,
        )

    def test_duplicate_references_are_rejected(self):
        certificate = ObjectReference(
            relation="certificate",
            object_type=CERTIFICATES,
            local_key="67",
        )

        with self.assertRaisesRegex(
            ValueError,
            "cannot contain duplicates",
        ):
            DiscoveredObject(
                object_type=PROXY_HOSTS,
                local_key="12",
                payload={},
                references=(certificate, certificate),
            )

    def test_non_reference_values_are_rejected(self):
        with self.assertRaisesRegex(
            ValueError,
            "ObjectReference instances",
        ):
            DiscoveredObject(
                object_type=PROXY_HOSTS,
                local_key="12",
                payload={},
                references=("certificate:67",),
            )


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