from dataclasses import replace
from datetime import timedelta
import unittest

from user_engine.adapters.local import InMemoryUserEngineStore, LocalAuthorizationCheckPort
from user_engine.domain import (
    AccessMembershipRequirement,
    AccessProfile,
    AccessScopeType,
    AccountStatus,
    AttributeDefinition,
    Catalog,
    CatalogLifecycle,
    FactorVerification,
    IdentityFactorType,
    Mutability,
    OnboardingJourneyStatus,
    OnboardingTriggerType,
    PreparedEntitlement,
    PreparedEntitlementKind,
    PreparedFactorRequirement,
    ProfileScope,
    ProjectionType,
    Sensitivity,
    Visibility,
    WelcomeProtocol,
    WelcomeProtocolStep,
    utc_now,
)
from user_engine.errors import AuthorizationDenied, ConflictError, ValidationError
from user_engine.service import REDACTED, UserEngineService
from user_engine.testing.fixtures import (
    FixtureIdentityClaimsAdapter,
    human_actor_claims,
    sample_application,
    sample_application_binding,
)
from user_engine.testing.scenarios import (
    ScenarioAuthorizationHarness,
    StrictFixtureIdentityClaimsAdapter,
    missing_tenant_claims,
)
from user_engine.ui import RegistrationAccessManagementUi, UiViewport


class RegistrationSecurityConformanceTests(unittest.TestCase):
    def test_full_registration_claim_hat_onboarding_ui_conformance_path(self):
        service, store, _ = _service()
        actor = _actor("conformance-user")
        _bootstrap_application(service, actor)
        service.register_welcome_protocol(
            actor,
            _prepared_welcome_protocol(),
            correlation_id="corr-conf-protocol",
        )
        prepared = service.prepare_account(
            actor,
            tenant="tenant:coulomb",
            required_factor_matches=(_email_requirement(),),
            entitlements=(
                PreparedEntitlement(
                    kind=PreparedEntitlementKind.MEMBERSHIP,
                    tenant="tenant:coulomb",
                    scope_type="realm",
                    scope_id="realm:citadel",
                    role="operator",
                ),
                PreparedEntitlement(
                    kind=PreparedEntitlementKind.ONBOARDING_JOURNEY,
                    tenant="tenant:coulomb",
                    onboarding_journey="welcome-demo",
                ),
            ),
            correlation_id="corr-conf-prepare",
        )
        registration = _complete_registration(service, actor)
        claim = service.claim_prepared_account(
            actor,
            registration.session.registration_id,
            prepared_account_id=prepared.prepared_account_id,
            correlation_id="corr-conf-claim",
        )
        profile = service.register_access_profile(
            actor,
            _operator_access_profile(),
            correlation_id="corr-conf-profile",
        )
        selection = service.select_active_hat(
            actor,
            registration.user.user_id,
            profile.access_profile_id,
            correlation_id="corr-conf-hat",
        )
        projection = service.projection(
            actor,
            registration.user.user_id,
            ProjectionType.CLAIMS_ENRICHMENT,
            application_id="app.demo",
            tenant="tenant:coulomb",
            correlation_id="corr-conf-projection",
        )
        context = service.identity_context(
            actor,
            user_id=registration.user.user_id,
            tenant="tenant:coulomb",
            application_id="app.demo",
            correlation_id="corr-conf-context",
        )
        export = service.export_access_control_facts(
            actor,
            tenant="tenant:coulomb",
            user_id=registration.user.user_id,
            correlation_id="corr-conf-export",
        )
        ui_html = RegistrationAccessManagementUi(service).render_html(
            RegistrationAccessManagementUi(service).admin_dashboard(
                actor,
                tenant="tenant:coulomb",
                viewport=UiViewport.DESKTOP,
            )
        )

        self.assertEqual(claim.memberships[0].kind, "operator")
        self.assertEqual(selection.active_context.hat, "operator")
        self.assertEqual(projection.access_context["active_hat"], "operator")
        self.assertTrue(context.onboarding_journeys)
        self.assertEqual(
            context.onboarding_journeys[0].status,
            OnboardingJourneyStatus.IN_PROGRESS,
        )
        self.assertIn("user", export.manifest["subject_types"])
        self.assertIn(
            "onboarding_journey.started",
            [event.event_type for event in service.outbox_events()],
        )
        self.assertNotIn("sample.user@example.test", ui_html)
        self.assertEqual(store.record_counts()["onboarding_journeys"], 1)

    def test_security_negative_paths_fail_closed_with_audit_evidence(self):
        service, store, _ = _service()
        actor = _actor("security-user")
        _bootstrap_application(service, actor)
        registration = _complete_registration(service, actor)

        other_user = service.create_user(
            actor,
            display_name="Other",
            primary_email="other@example.test",
            correlation_id="corr-other",
        )
        with self.assertRaises(ConflictError):
            service.link_identity(
                actor,
                other_user.user_id,
                issuer=actor.issuer,
                subject=actor.subject,
                correlation_id="corr-duplicate-identity",
            )

        with self.assertRaises(ValidationError):
            service.prepare_account(
                actor,
                tenant="tenant:coulomb",
                required_factor_matches=(
                    PreparedFactorRequirement(
                        factor_type=IdentityFactorType.EMAIL,
                        normalized_value=" ",
                    ),
                ),
                entitlements=(_membership_entitlement(),),
                correlation_id="corr-weak-factor",
            )

        hijack = service.prepare_account(
            actor,
            tenant="tenant:coulomb",
            required_factor_matches=(
                PreparedFactorRequirement(
                    factor_type=IdentityFactorType.EMAIL,
                    normalized_value="victim@example.test",
                ),
            ),
            entitlements=(_membership_entitlement(),),
            correlation_id="corr-hijack-prepare",
        )
        with self.assertRaises(ValidationError):
            service.claim_prepared_account(
                actor,
                registration.session.registration_id,
                prepared_account_id=hijack.prepared_account_id,
                correlation_id="corr-hijack-claim",
            )

        expired = service.prepare_account(
            actor,
            tenant="tenant:coulomb",
            required_factor_matches=(_email_requirement("expired@example.test"),),
            entitlements=(_membership_entitlement(scope_id="realm:expired"),),
            expires_at=utc_now() - timedelta(days=1),
            correlation_id="corr-expired-prepare",
        )
        with self.assertRaises(ValidationError):
            service.claim_prepared_account(
                actor,
                registration.session.registration_id,
                prepared_account_id=expired.prepared_account_id,
                correlation_id="corr-expired-claim",
            )

        with self.assertRaises(AuthorizationDenied):
            service.resolve_tenant_context(actor, "tenant:faraday")

        privileged = service.prepare_account(
            actor,
            tenant="tenant:coulomb",
            required_factor_matches=(_email_requirement(),),
            entitlements=(
                replace(
                    _membership_entitlement(scope_id="realm:privileged"),
                    role="admin",
                    requires_approval=True,
                ),
            ),
            correlation_id="corr-privileged-prepare",
        )
        with self.assertRaises(AuthorizationDenied):
            service.claim_prepared_account(
                actor,
                registration.session.registration_id,
                prepared_account_id=privileged.prepared_account_id,
                correlation_id="corr-privileged-claim",
            )

        access_profile = service.register_access_profile(
            actor,
            replace(_operator_access_profile(), requires_approval=True),
            correlation_id="corr-stale-approval-profile",
        )
        with self.assertRaises(AuthorizationDenied):
            service.select_active_hat(
                actor,
                registration.user.user_id,
                access_profile.access_profile_id,
                correlation_id="corr-stale-approval",
            )

        audit_summaries = [record.summary for record in service.audit_records()]
        self.assertIn(
            "prepared account claim denied: factor mismatch or closed",
            audit_summaries,
        )
        self.assertIn(
            "prepared account claim denied: approval required",
            audit_summaries,
        )
        self.assertEqual(store.memberships_for_user(other_user.user_id), ())

    def test_redaction_and_diagnostics_conformance(self):
        service, _, _ = _service()
        actor = _actor("redaction-user")
        _bootstrap_application(service, actor, catalog=_sensitive_catalog())
        registration = _complete_registration(service, actor)
        service.set_profile_value(
            actor,
            registration.user.user_id,
            "demo.recovery_hint",
            "blue envelope",
            tenant="tenant:coulomb",
            correlation_id="corr-sensitive-profile",
        )
        service.prepare_account(
            actor,
            tenant="tenant:coulomb",
            required_factor_matches=(_email_requirement(),),
            entitlements=(_membership_entitlement(),),
            primary_email="sample.user@example.test",
            correlation_id="corr-redaction-prepare",
        )
        service.register_access_profile(
            actor,
            replace(
                _operator_access_profile(),
                claims={"policy_secret": "do-not-render"},
                profile_defaults={"landing_hint": "do-not-render"},
            ),
            correlation_id="corr-redaction-profile",
        )

        projection = service.projection(
            actor,
            registration.user.user_id,
            ProjectionType.APPLICATION_RUNTIME,
            application_id="app.demo",
            tenant="tenant:coulomb",
            correlation_id="corr-sensitive-projection",
        )
        access_diagnostics = service.access_profile_diagnostics(
            actor,
            tenant="tenant:coulomb",
            correlation_id="corr-access-diagnostics",
        )
        admin_html = RegistrationAccessManagementUi(service).render_html(
            RegistrationAccessManagementUi(service).admin_dashboard(
                actor,
                tenant="tenant:coulomb",
                viewport=UiViewport.DESKTOP,
            )
        )
        event_payloads = repr([event.payload for event in service.outbox_events()])

        self.assertEqual(projection.values["demo.recovery_hint"], REDACTED)
        self.assertNotIn("blue envelope", repr(access_diagnostics))
        self.assertNotIn("do-not-render", repr(access_diagnostics))
        self.assertNotIn("sample.user@example.test", admin_html)
        self.assertNotIn("sample.user@example.test", event_payloads)
        self.assertNotIn("blue envelope", event_payloads)

    def test_adapter_conformance_harnesses_without_production_infrastructure(self):
        store = InMemoryUserEngineStore()
        authz = ScenarioAuthorizationHarness(
            action_obligations={"access_control_facts.export": ("acl:sync",)}
        )
        service = UserEngineService(
            store=store,
            identity_adapter=StrictFixtureIdentityClaimsAdapter(),
            authorization=authz,
            factor_verifier=_FixtureFactorVerifier(),
        )
        actor = service.identity_adapter.normalize(human_actor_claims())
        _bootstrap_application(service, actor)
        registration = service.start_registration(actor, correlation_id="corr-adapter-start")
        service.attach_registration_factor(
            actor,
            registration.registration_id,
            {"type": "eid", "value": "EID-123", "secret": "strip-me"},
            correlation_id="corr-adapter-factor",
        )
        service.attach_registration_factor(
            actor,
            registration.registration_id,
            {"type": "email", "value": "sample.user@example.test"},
            correlation_id="corr-adapter-email",
        )
        completed = service.complete_registration(
            actor,
            registration.registration_id,
            correlation_id="corr-adapter-complete",
        )
        service.add_membership(
            actor,
            completed.user.user_id,
            tenant="tenant:coulomb",
            scope_type="group",
            scope_id="group:research",
            kind="member",
            correlation_id="corr-adapter-group",
        )
        export = service.export_access_control_facts(
            actor,
            tenant="tenant:coulomb",
            user_id=completed.user.user_id,
            correlation_id="corr-adapter-export",
        )
        protocol = service.register_welcome_protocol(
            actor,
            WelcomeProtocol(
                tenant="tenant:coulomb",
                name="Adapter Handoff",
                trigger_type=OnboardingTriggerType.MANUAL,
                steps=(
                    WelcomeProtocolStep(
                        step_key="callback",
                        title="Callback",
                        subsystem="crm",
                        requires_subsystem_callback=True,
                    ),
                ),
            ),
            correlation_id="corr-adapter-protocol",
        )
        blocked = service.start_onboarding_journey(
            actor,
            completed.user.user_id,
            protocol.protocol_id,
            correlation_id="corr-adapter-onboarding",
        ).journey
        resumed = service.resume_onboarding_journey(
            actor,
            blocked.journey_id,
            callback_refs={"callback": "crm://welcome/callback"},
            correlation_id="corr-adapter-resume",
        )

        self.assertIn("group", export.manifest["subject_types"])
        self.assertTrue(any(request.action == "access_control_facts.export" for request in authz.requests))
        self.assertNotIn("strip-me", repr(store.factors_for_user(completed.user.user_id)))
        self.assertEqual(blocked.status, OnboardingJourneyStatus.BLOCKED)
        self.assertEqual(resumed.status, OnboardingJourneyStatus.IN_PROGRESS)
        self.assertTrue(service.audit_records())
        self.assertTrue(service.outbox_events())
        self.assertEqual(service.operability_snapshot().issues, ())

        with self.assertRaises(ValidationError):
            service.identity_adapter.normalize(missing_tenant_claims())


class _FixtureFactorVerifier:
    def normalize(self, proofing_result):
        factor_type = IdentityFactorType(str(proofing_result["type"]))
        return FactorVerification(
            factor_type=factor_type,
            normalized_value=str(proofing_result["value"]).casefold(),
            display_value=None,
            source_system="fixture-proofing",
            assurance={"level": "ial2" if factor_type == IdentityFactorType.EID else "ial1"},
        )


def _service():
    store = InMemoryUserEngineStore()
    service = UserEngineService(
        store=store,
        identity_adapter=FixtureIdentityClaimsAdapter(),
        authorization=LocalAuthorizationCheckPort(),
    )
    return service, store, service.authorization


def _actor(subject: str):
    claims = human_actor_claims(subject=subject, tenant="tenant:coulomb")
    claims["roles"] = ["tenant-admin"]
    return FixtureIdentityClaimsAdapter().normalize(claims)


def _bootstrap_application(
    service: UserEngineService,
    actor,
    *,
    catalog: Catalog | None = None,
) -> None:
    service.register_application(
        actor,
        sample_application(),
        binding=sample_application_binding(),
        correlation_id="corr-bootstrap-app",
    )
    service.publish_catalog(
        actor,
        catalog or _simple_catalog(),
        correlation_id="corr-bootstrap-catalog",
    )


def _complete_registration(service: UserEngineService, actor):
    session = service.start_registration(actor, correlation_id="corr-reg-start")
    service.attach_registration_factor(
        actor,
        session.registration_id,
        FactorVerification(
            factor_type=IdentityFactorType.EMAIL,
            normalized_value="sample.user@example.test",
            display_value="sample.user@example.test",
            source_system="fixture-email",
        ),
        correlation_id="corr-reg-factor",
    )
    return service.complete_registration(
        actor,
        session.registration_id,
        correlation_id="corr-reg-complete",
    )


def _email_requirement(email: str = "sample.user@example.test"):
    return PreparedFactorRequirement(
        factor_type=IdentityFactorType.EMAIL,
        normalized_value=email,
    )


def _membership_entitlement(scope_id: str = "realm:citadel"):
    return PreparedEntitlement(
        kind=PreparedEntitlementKind.MEMBERSHIP,
        tenant="tenant:coulomb",
        scope_type="realm",
        scope_id=scope_id,
        role="operator",
    )


def _operator_access_profile() -> AccessProfile:
    return AccessProfile(
        tenant="tenant:coulomb",
        display_name="Operator",
        hat="operator",
        scope_type=AccessScopeType.REALM,
        scope_id="realm:citadel",
        realm_id="realm:citadel",
        service_id="app.demo",
        membership_requirements=(
            AccessMembershipRequirement(
                scope_type="realm",
                scope_id="realm:citadel",
                kind="operator",
            ),
        ),
        required_factor_types=(IdentityFactorType.EMAIL,),
        claims={"service_role": "operator"},
    )


def _prepared_welcome_protocol() -> WelcomeProtocol:
    return WelcomeProtocol(
        tenant="tenant:coulomb",
        name="Prepared Welcome",
        trigger_type=OnboardingTriggerType.PREPARED_ACCOUNT,
        journey_key="welcome-demo",
        prepared_journey="welcome-demo",
        steps=(
            WelcomeProtocolStep(
                step_key="intro",
                title="Intro",
                subsystem="portal",
                callback_ref="portal://welcome",
                requires_subsystem_callback=True,
            ),
        ),
    )


def _simple_catalog() -> Catalog:
    return Catalog(
        catalog_id="demo-profile",
        namespace="demo",
        version="0.1.0",
        owning_application_id="app.demo",
        lifecycle=CatalogLifecycle.ACTIVE,
        attributes=(
            AttributeDefinition(
                key="demo.display_density",
                value_type="string",
                scope=ProfileScope.APPLICATION,
                sensitivity=Sensitivity.INTERNAL,
                visibility=(Visibility.USER, Visibility.APPLICATION),
                mutability=(Mutability.USER,),
                default="comfortable",
                validation={"enum": ["compact", "comfortable"]},
            ),
        ),
    )


def _sensitive_catalog() -> Catalog:
    catalog = _simple_catalog()
    return Catalog(
        catalog_id=catalog.catalog_id,
        namespace=catalog.namespace,
        version=catalog.version,
        owning_application_id=catalog.owning_application_id,
        lifecycle=catalog.lifecycle,
        attributes=(
            *catalog.attributes,
            AttributeDefinition(
                key="demo.recovery_hint",
                value_type="string",
                scope=ProfileScope.GLOBAL,
                sensitivity=Sensitivity.SENSITIVE,
                visibility=(Visibility.USER, Visibility.APPLICATION, Visibility.ADMIN),
                mutability=(Mutability.USER, Mutability.ADMIN),
            ),
        ),
    )


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