import type { LiveModifyMode, MockServerConfig } from '../types.ts';

// True when the config opts back into the envelopes this engine sent up to
// 15.47 (see FidelityMode in types.ts). Read per message, like every other
// config field, so flipping it on a running server takes effect immediately.
export function isLegacyFidelity(config: MockServerConfig): boolean {
  return config.fidelity === 'legacy';
}

// How a live MODIFY's row is written (see LiveModifyMode in types.ts): as
// GSF's diff unless the config asks for whole rows.
export function liveModifyMode(config: MockServerConfig): LiveModifyMode {
  return config.liveModify ?? 'diff';
}