/**
 * Vaultfire Drift – Soul Recall Engine (Prototype)
 * Activation Layer v2.0
 *
 * Scaffold for integrating with the Memory Protocol API.
 * Tracks belief history, loyalty signals, and timestamped memory events
 * to synchronize user actions across Vaultfire surfaces.
 */

export const driftSignalEnvelope = {
  tag: 'Vaultfire Drift – Soul Recall Engine (Prototype)',
  userBeliefHistory: [],
  loyaltySignals: [],
  memoryEvents: [],
};

/**
 * Append a belief update for later synchronization.
 * @param {Object} beliefUpdate - { userId, convictionScore, narrative, recordedAt }
 */
export function recordBeliefHistory(beliefUpdate) {
  driftSignalEnvelope.userBeliefHistory.push({
    ...beliefUpdate,
    recordedAt: beliefUpdate.recordedAt ?? new Date().toISOString(),
  });
}

/**
 * Append a loyalty signal entry.
 * @param {Object} loyaltyEntry - { userId, signalType, signalStrength, recordedAt }
 */
export function recordLoyaltySignal(loyaltyEntry) {
  driftSignalEnvelope.loyaltySignals.push({
    ...loyaltyEntry,
    recordedAt: loyaltyEntry.recordedAt ?? new Date().toISOString(),
  });
}

/**
 * Append a timestamped memory event.
 * @param {Object} memoryEvent - { userId, eventType, payload, recordedAt }
 */
export function recordMemoryEvent(memoryEvent) {
  driftSignalEnvelope.memoryEvents.push({
    ...memoryEvent,
    recordedAt: memoryEvent.recordedAt ?? new Date().toISOString(),
  });
}

/**
 * Placeholder hook for the Memory Protocol integration.
 * Replace with the actual API call when available.
 */
export async function syncUserAction(context) {
  if (!context?.userId) {
    throw new Error('syncUserAction requires a userId in context');
  }

  const payload = {
    context,
    envelope: { ...driftSignalEnvelope },
    syncedAt: new Date().toISOString(),
  };

  // TODO: memoryAPI.syncUserAction(payload)
  return payload;
}
