import unittest

from user_engine.adapters.local import InMemoryUserEngineStore, LocalAuthorizationCheckPort
from user_engine.domain import (
    CanonEntityReference,
    FactorVerification,
    IdentityFactorType,
    RegistrationStatus,
)
from user_engine.errors import ValidationError
from user_engine.service import UserEngineService
from user_engine.testing.fixtures import FixtureIdentityClaimsAdapter, human_actor_claims


class RegistrationIdentityTests(unittest.TestCase):
    def test_registration_with_verified_email_creates_netkingdom_id(self):
        service, store = _service()
        actor = _actor()

        session = service.start_registration(actor, correlation_id="corr-start")
        verified = service.attach_registration_factor(
            actor,
            session.registration_id,
            _verified_email(),
            correlation_id="corr-factor",
        )
        completion = service.complete_registration(
            actor,
            session.registration_id,
            correlation_id="corr-complete",
        )

        self.assertEqual(verified.status, RegistrationStatus.FACTOR_VERIFIED)
        self.assertEqual(completion.session.status, RegistrationStatus.COMPLETED)
        self.assertEqual(completion.netkingdom_id, completion.user.user_id)
        self.assertEqual(completion.session.netkingdom_id, completion.user.user_id)
        self.assertEqual(completion.user.primary_email, "sample.user@example.test")
        self.assertEqual(completion.identity_context.user.user_id, completion.user.user_id)
        self.assertEqual(store.find_identity(*actor.identity_key).user_id, completion.user.user_id)
        self.assertEqual(
            store.factors_for_user(completion.user.user_id)[0].factor_type,
            IdentityFactorType.EMAIL,
        )
        self.assertNotIn(
            "sample.user@example.test",
            repr([event.payload for event in service.outbox_events()]),
        )

    def test_registration_requires_all_required_factors_before_completion(self):
        service, store = _service()
        actor = _actor()
        session = service.start_registration(
            actor,
            required_factor_types=(IdentityFactorType.EID,),
            correlation_id="corr-start",
        )
        service.attach_registration_factor(
            actor,
            session.registration_id,
            _verified_email(),
            correlation_id="corr-factor",
        )

        with self.assertRaises(ValidationError):
            service.complete_registration(
                actor,
                session.registration_id,
                correlation_id="corr-complete",
            )

        self.assertEqual(store.record_counts()["users"], 0)
        self.assertIsNone(store.registration_session(session.registration_id).user_id)

    def test_factor_verifier_adapter_normalizes_external_proofing_result(self):
        service, store = _service(factor_verifier=_FixtureFactorVerifier())
        actor = _actor()
        session = service.start_registration(actor, correlation_id="corr-start")

        updated = service.attach_registration_factor(
            actor,
            session.registration_id,
            {
                "type": "email",
                "value": "Sample.User@Example.Test",
                "secret_challenge": "do-not-store-this",
            },
            correlation_id="corr-factor",
        )
        stored = store.factors_for_registration(session.registration_id)[0]

        self.assertEqual(updated.status, RegistrationStatus.FACTOR_VERIFIED)
        self.assertEqual(stored.normalized_value, "sample.user@example.test")
        self.assertNotIn("do-not-store-this", repr(stored))
        self.assertNotIn(
            "do-not-store-this",
            repr([event.payload for event in service.outbox_events()]),
        )

    def test_abandoned_registration_cannot_resume_or_complete(self):
        service, _ = _service()
        actor = _actor()
        session = service.start_registration(actor, correlation_id="corr-start")

        abandoned = service.abandon_registration(
            actor,
            session.registration_id,
            correlation_id="corr-abandon",
        )
        diagnostics = service.registration_diagnostics(
            actor,
            tenant="tenant:coulomb",
            correlation_id="corr-diagnostics",
        )

        self.assertEqual(abandoned.status, RegistrationStatus.ABANDONED)
        self.assertEqual(diagnostics.statuses[RegistrationStatus.ABANDONED.value], 1)
        with self.assertRaises(ValidationError):
            service.resume_registration(
                actor,
                session.registration_id,
                correlation_id="corr-resume",
            )
        with self.assertRaises(ValidationError):
            service.complete_registration(
                actor,
                session.registration_id,
                correlation_id="corr-complete",
            )


def _service(*, factor_verifier=None):
    store = InMemoryUserEngineStore()
    service = UserEngineService(
        store=store,
        identity_adapter=FixtureIdentityClaimsAdapter(),
        authorization=LocalAuthorizationCheckPort(),
        factor_verifier=factor_verifier,
    )
    return service, store


def _actor():
    return FixtureIdentityClaimsAdapter().normalize(human_actor_claims())


def _verified_email() -> FactorVerification:
    return FactorVerification(
        factor_type=IdentityFactorType.EMAIL,
        normalized_value="sample.user@example.test",
        display_value="sample.user@example.test",
        source_system="fixture-email",
        assurance={"level": "email_verified"},
        evidence_refs=(
            CanonEntityReference(
                concept="Evidence Source",
                identifier="fixture-email-proof",
                source_system="fixture-email",
            ),
        ),
    )


class _FixtureFactorVerifier:
    def normalize(self, proofing_result):
        return FactorVerification(
            factor_type=IdentityFactorType(str(proofing_result["type"])),
            normalized_value=str(proofing_result["value"]).lower(),
            display_value=str(proofing_result["value"]).lower(),
            source_system="fixture-proofing",
            assurance={"level": "email_verified"},
        )


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