"""The /api/design blueprint — this install's UI, not the design-system record.

Modelled on tests/test_routes_design_systems.py. The URL enumeration is
deliberate rather than a pattern match: this blueprint was repointed from
`/expectations` to `/ui-system` (#2419), and the failure worth catching is the
old rule surviving the change — a route nothing serves any more, answering with
whatever the last handler registered on it did.
"""
import inspect

import pytest


def test_design_blueprint_registered():
    from scribe.routes.design import design_bp
    assert design_bp.name == "design"
    assert design_bp.url_prefix == "/api/design"


def test_design_blueprint_registered_in_app():
    from scribe.app import create_app
    app = create_app()
    assert "design" in app.blueprints


def test_the_blueprint_serves_exactly_one_rule():
    from scribe.app import create_app
    app = create_app()
    rules = {
        str(r.rule) for r in app.url_map.iter_rules()
        if r.endpoint.startswith("design.")
    }
    assert rules == {"/api/design/ui-system"}


def test_the_designation_reader_takes_user_id():
    """The setting is per-user, so the read must be too (rule #78). A
    module-level or admin-scoped read would hand one user another's designation."""
    from scribe.services import design_systems as svc
    assert "user_id" in inspect.signature(svc.ui_design_system).parameters


def test_the_setting_key_is_the_new_one():
    """Named explicitly because the panel silently reading a retired key is the
    exact shape of the bug this replaced: a feature that renders, and reports
    nothing, forever."""
    from scribe.services.design_systems import UI_DESIGN_SYSTEM_SETTING
    assert UI_DESIGN_SYSTEM_SETTING == "ui_design_system_id"


def test_the_rulebook_expectation_extractor_is_gone():
    """It was retired with the rulebook it parsed (#2288, #2419). Left importable
    it would keep looking like a live path to the next reader."""
    with pytest.raises(ModuleNotFoundError):
        import scribe.services.design_rulebook_import  # noqa: F401