-- Named registers for POS terminals
CREATE TABLE IF NOT EXISTS register (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  location_id UUID NOT NULL REFERENCES location(id),
  name VARCHAR(100) NOT NULL,
  is_active BOOLEAN NOT NULL DEFAULT true,
  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
  updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

-- Link drawer sessions to registers
ALTER TABLE drawer_session ADD COLUMN IF NOT EXISTS register_id UUID REFERENCES register(id);