-- Seed rotation config setting for duty schedule generator
INSERT INTO app_settings (key, value)
VALUES (
  'rotation_config',
  '{
    "rotation_order": [],
    "friday_am_order": [],
    "excluded_staff_ids": [],
    "initial_am_staff_id": null,
    "initial_pm_staff_id": null
  }'::jsonb
)
ON CONFLICT (key) DO NOTHING;

-- Ensure admin/dispatcher can upsert app_settings (for rotation config edits).
-- A policy may already exist; use IF NOT EXISTS pattern via DO block.
DO $$
BEGIN
  IF NOT EXISTS (
    SELECT 1 FROM pg_policies
    WHERE tablename = 'app_settings'
      AND policyname = 'app_settings_admin_upsert'
  ) THEN
    EXECUTE $policy$
      CREATE POLICY app_settings_admin_upsert ON app_settings
        FOR ALL TO authenticated
        USING (
          EXISTS (
            SELECT 1 FROM profiles
            WHERE profiles.id = auth.uid()
              AND profiles.role IN ('admin', 'dispatcher')
          )
        )
        WITH CHECK (
          EXISTS (
            SELECT 1 FROM profiles
            WHERE profiles.id = auth.uid()
              AND profiles.role IN ('admin', 'dispatcher')
          )
        )
    $policy$;
  END IF;
END
$$;