from __future__ import annotations

import unittest
from types import SimpleNamespace

from govoplan_access.backend.manifest import get_manifest as get_access_manifest
from govoplan_core.core.registry import PlatformRegistry
from govoplan_tenancy.backend.manifest import get_manifest as get_tenancy_manifest
from govoplan_docs.backend.api.v1.routes import (
    _classify_documentation,
    _documentation_topic_anchor,
    _documentation_topic_groups,
)
from govoplan_docs.backend.manifest import get_manifest as get_docs_manifest


class FakePrincipal:
    tenant_id = "tenant-1"
    user = SimpleNamespace(id="user-1")

    def __init__(self, scopes: set[str]) -> None:
        self.scopes = frozenset(scopes)

    def has(self, required_scope: str) -> bool:
        return required_scope in self.scopes


class DocsContextTests(unittest.TestCase):
    def test_topic_groups_preserve_layer_classification(self) -> None:
        registry = PlatformRegistry()
        registry.register(get_tenancy_manifest())
        registry.register(get_access_manifest())
        registry.register(get_docs_manifest())
        principal = FakePrincipal({"admin:users:read", "admin:groups:read", "docs:documentation:read"})

        layers = _classify_documentation(
            registry,
            principal,
            settings=None,
            session=None,
            documentation_type="admin",
            locale="en",
        )
        groups = _documentation_topic_groups(layers)

        workflow_ids = {topic["id"] for topic in groups["workflow"]}
        reference_ids = {topic["id"] for topic in groups["reference"]}
        pattern_ids = {topic["id"] for topic in groups["pattern"]}
        system_ids = {topic["id"] for topic in groups["system"]}

        self.assertIn("access.workflow.grant-user-access", workflow_ids)
        self.assertIn("access.reference.admin-access-fields", reference_ids)
        self.assertIn("docs.pattern.field-help", pattern_ids)
        self.assertIn("docs.configured-system-documentation", system_ids)

        configured_ids = {topic["id"] for topic in layers["configured"]}
        always_ids = {topic["id"] for topic in layers["always"]}
        self.assertIn("access.workflow.grant-user-access", configured_ids)
        self.assertIn("docs.pattern.field-help", always_ids)

    def test_unavailable_topic_still_appears_in_kind_group(self) -> None:
        registry = PlatformRegistry()
        registry.register(get_tenancy_manifest())
        registry.register(get_access_manifest())
        registry.register(get_docs_manifest())
        principal = FakePrincipal({"docs:documentation:read"})

        layers = _classify_documentation(
            registry,
            principal,
            settings=None,
            session=None,
            documentation_type="user",
            locale="en",
        )
        groups = _documentation_topic_groups(layers)
        workflows = {topic["id"]: topic for topic in groups["workflow"]}

        self.assertIn("access.workflow.grant-user-access", workflows)
        self.assertFalse(workflows["access.workflow.grant-user-access"]["active"])
        self.assertIn("access.workflow.grant-user-access", {topic["id"] for topic in layers["available"]})

    def test_topic_anchor_is_stable(self) -> None:
        self.assertEqual(
            _documentation_topic_anchor("access", "access.workflow.grant-user-access"),
            "docs-topic-access-access-workflow-grant-user-access",
        )


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