-- Reverse of mig 115 — t-paliad-225 / m/paliad#61 Slice B.
--
-- Restore the owner+firm/global-only body of paliad.can_see_checklist
-- (matches the mig 114 definition) so a rollback of Slice B leaves the
-- function pointing at the Slice A behaviour.

CREATE OR REPLACE FUNCTION paliad.can_see_checklist(_user_id uuid, _checklist_id uuid)
RETURNS boolean
LANGUAGE sql STABLE SECURITY DEFINER
SET search_path TO 'paliad', 'public'
AS $$
    SELECT EXISTS (
        SELECT 1 FROM paliad.checklists c
         WHERE c.id = _checklist_id AND c.owner_id = _user_id
    )
    OR EXISTS (
        SELECT 1 FROM paliad.checklists c
         WHERE c.id = _checklist_id AND c.visibility IN ('firm', 'global')
    );
$$;

DROP POLICY IF EXISTS checklist_shares_delete ON paliad.checklist_shares;
DROP POLICY IF EXISTS checklist_shares_insert ON paliad.checklist_shares;
DROP POLICY IF EXISTS checklist_shares_select ON paliad.checklist_shares;

DROP TABLE IF EXISTS paliad.checklist_shares;