'use strict';

function validateIdentity(identity) {
  const label = typeof identity === 'string' ? identity.trim() : '';
  if (!label) {
    throw new TypeError('biometricAnchor.attach requires a non-empty identity');
  }
  return label;
}

const biometricAnchor = {
  attach(identity) {
    const label = validateIdentity(identity);
    return {
      module: 'biometric-anchor',
      status: 'anchored',
      frontierTag: 'frontier-tech',
      capabilities: ['identity-binding', 'tamper-detection'],
      identity: label,
      attestation: {
        hash: `anchor-${Buffer.from(label).toString('hex')}`,
        issuedAt: new Date().toISOString(),
      },
    };
  },
};

const missionLock = {
  harden() {
    return {
      module: 'mission-lock',
      status: 'reinforced',
      frontierTag: 'frontier-tech',
      integrityLevel: 'frontier-grade',
      safeguards: ['biometric-binding', 'quantum-resistant-checks', 'regen-failover'],
    };
  },
};

module.exports = {
  biometricAnchor,
  missionLock,
};
