const CONSENT_KEY = 'tkmind_legal_consent';
const CONSENT_VERSION = '1.0';

function getStoredConsent() {
  try {
    const stored = wx.getStorageSync(CONSENT_KEY);
    if (stored && typeof stored === 'object') {
      return stored;
    }
  } catch {
    // Ignore storage read errors.
  }
  return null;
}

function hasAcceptedLegalConsent() {
  const stored = getStoredConsent();
  return stored?.accepted === true && stored?.version === CONSENT_VERSION;
}

function saveLegalConsent() {
  wx.setStorageSync(CONSENT_KEY, {
    accepted: true,
    version: CONSENT_VERSION,
    acceptedAt: new Date().toISOString(),
  });
}

function clearLegalConsent() {
  wx.removeStorageSync(CONSENT_KEY);
}

function shouldSkipLoginConsent() {
  return hasAcceptedLegalConsent();
}

module.exports = {
  CONSENT_VERSION,
  getStoredConsent,
  hasAcceptedLegalConsent,
  saveLegalConsent,
  clearLegalConsent,
  shouldSkipLoginConsent,
};