-- Macro: Parse an Ofsted ungraded (Section 8) inspection outcome into a grade.
--
-- Ungraded inspections do not assign a fresh grade; the outcome is free text
-- describing whether the school kept its previous judgement, e.g.
--   "School remains Good", "School remains Good (Concerns) - S5 Next",
--   "School remains Outstanding", "School remains Outstanding (Concerns) - S5 Next".
-- These are the only Good/Outstanding signal we can recover, so we match on the
-- "remains <grade>" phrase (tolerant of any trailing qualifier).
--
-- Outcomes that don't establish a Good/Outstanding status — "Standards
-- maintained", "Improved significantly", "Some aspects not as strong" — map to
-- null. Grades align with parse_ofsted_grade (1 = Outstanding, 2 = Good).

{% macro parse_ungraded_outcome(column) %}
    case
        when {{ column }} ilike '%remains Outstanding%' then 1
        when {{ column }} ilike '%remains Good%'        then 2
        else null
    end
{% endmacro %}