from __future__ import annotations

from pathlib import Path

from govoplan_core.core.access import (
    CAPABILITY_AUTH_PERMISSION_EVALUATOR,
    CAPABILITY_AUTH_PRINCIPAL_RESOLVER,
)
from govoplan_core.core.module_guards import (
    drop_table_retirement_provider,
    persistent_table_uninstall_guard,
)
from govoplan_core.core.policy import (
    CAPABILITY_POLICY_DEFINITION_GOVERNANCE,
    CAPABILITY_POLICY_PRIVACY_RETENTION,
    CAPABILITY_POLICY_SCHEDULING_PARTICIPANT_PRIVACY,
)
from govoplan_core.core.modules import (
    FrontendModule,
    MigrationSpec,
    ModuleContext,
    ModuleInterfaceProvider,
    ModuleManifest,
)
from govoplan_core.core.views import ViewSurface
from govoplan_core.db.base import Base
from govoplan_policy.backend.db import models as policy_models


def _route_factory(context: ModuleContext):
    del context
    from govoplan_policy.backend.api.v1.routes import router

    return router


def _privacy_retention_service(context: ModuleContext) -> object:
    del context
    from govoplan_policy.backend.retention import SqlPrivacyRetentionService

    return SqlPrivacyRetentionService()


def _scheduling_participant_privacy_policy(context: ModuleContext) -> object:
    del context
    from govoplan_policy.backend.scheduling_privacy import (
        SqlSchedulingParticipantPrivacyPolicy,
    )

    return SqlSchedulingParticipantPrivacyPolicy()


def _definition_governance_policy(context: ModuleContext) -> object:
    del context
    from govoplan_policy.backend.definition_governance import (
        DefinitionGovernancePolicyProvider,
    )

    return DefinitionGovernancePolicyProvider()


manifest = ModuleManifest(
    id="policy",
    name="Policy",
    version="0.1.9",
    required_capabilities=(
        CAPABILITY_AUTH_PRINCIPAL_RESOLVER,
        CAPABILITY_AUTH_PERMISSION_EVALUATOR,
    ),
    provides_interfaces=(
        ModuleInterfaceProvider(
            name="policy.definition_governance",
            version="0.1.0",
        ),
    ),
    route_factory=_route_factory,
    migration_spec=MigrationSpec(
        module_id="policy",
        metadata=Base.metadata,
        script_location=str(Path(__file__).with_name("migrations") / "versions"),
        retirement_supported=True,
        retirement_provider=drop_table_retirement_provider(
            policy_models.PolicyOverride,
            label="Policy overrides",
        ),
        retirement_notes=(
            "Destructive retirement removes explicit definition and View "
            "policy overrides after a database snapshot."
        ),
    ),
    uninstall_guard_providers=(
        persistent_table_uninstall_guard(
            policy_models.PolicyOverride,
            label="Policy overrides",
        ),
    ),
    frontend=FrontendModule(
        module_id="policy",
        package_name="@govoplan/policy-webui",
        view_surfaces=(
            ViewSurface(
                id="policy.admin.system-retention",
                module_id="policy",
                kind="section",
                label="System retention",
                order=80,
            ),
            ViewSurface(
                id="policy.admin.tenant-retention",
                module_id="policy",
                kind="section",
                label="Tenant retention",
                order=80,
            ),
            ViewSurface(
                id="policy.admin.group-retention",
                module_id="policy",
                kind="section",
                label="Group retention",
                order=80,
            ),
            ViewSurface(
                id="policy.admin.user-retention",
                module_id="policy",
                kind="section",
                label="User retention",
                order=80,
            ),
        ),
    ),
    capability_factories={
        CAPABILITY_POLICY_DEFINITION_GOVERNANCE: _definition_governance_policy,
        CAPABILITY_POLICY_PRIVACY_RETENTION: _privacy_retention_service,
        CAPABILITY_POLICY_SCHEDULING_PARTICIPANT_PRIVACY: _scheduling_participant_privacy_policy,
    },
)


def get_manifest() -> ModuleManifest:
    return manifest