/**
 * Copyright (C) 2013 Regents of the University of California.
 * @author: Jeff Thompson <jefft0@remap.ucla.edu>
 * See COPYING for copyright and distribution information.
 */

#ifndef NDN_PUBLISHERPUBLICKEYDIGEST_HPP
#define NDN_PUBLISHERPUBLICKEYDIGEST_HPP

#include <vector>
#include "common.hpp"
#include "c/publisher-public-key-digest.h"

namespace ndn {
  
/**
 * A PublisherPublicKeyDigest holds the publisher public key digest value, if any.
 * We make a separate class since this is used by multiple other classes.
 */
class PublisherPublicKeyDigest {
public:    
  PublisherPublicKeyDigest() {
  }
  
  /**
   * Set the publisherPublicKeyDigestStruct to point to the entries in this PublisherPublicKeyDigest, without copying any memory.
   * WARNING: The resulting pointers in publisherPublicKeyDigestStruct are invalid after a further use of this object which could reallocate memory.
   * @param publisherPublicKeyDigestStruct a C ndn_PublisherPublicKeyDigest struct to receive the pointer
   */
  void 
  get(struct ndn_PublisherPublicKeyDigest& publisherPublicKeyDigestStruct) const 
  {
    publisherPublicKeyDigestStruct.publisherPublicKeyDigestLength = publisherPublicKeyDigest_.size();
    if (publisherPublicKeyDigest_.size() > 0)
      publisherPublicKeyDigestStruct.publisherPublicKeyDigest = (unsigned char *)publisherPublicKeyDigest_.buf();
    else
      publisherPublicKeyDigestStruct.publisherPublicKeyDigest = 0;
  }
  
  /**
   * Clear this PublisherPublicKeyDigest, and copy from the ndn_PublisherPublicKeyDigest struct.
   * @param excludeStruct a C ndn_Exclude struct
   */
  void 
  set(const struct ndn_PublisherPublicKeyDigest& publisherPublicKeyDigestStruct) 
  {
    publisherPublicKeyDigest_ = 
      Blob(publisherPublicKeyDigestStruct.publisherPublicKeyDigest, publisherPublicKeyDigestStruct.publisherPublicKeyDigestLength);
  }

  const Blob& 
  getPublisherPublicKeyDigest() const { return publisherPublicKeyDigest_; }

  void 
  setPublisherPublicKeyDigest(const std::vector<unsigned char>& publisherPublicKeyDigest) 
  { 
    publisherPublicKeyDigest_ = publisherPublicKeyDigest; 
  }
  
  void 
  setPublisherPublicKeyDigest(const unsigned char *publisherPublicKeyDigest, unsigned int publisherPublicKeyDigestLength) 
  { 
    publisherPublicKeyDigest_ = Blob(publisherPublicKeyDigest, publisherPublicKeyDigestLength); 
  }

  /**
   * Set the publisher public key digest to point to an existing byte array.  IMPORTANT: After calling this,
   * if you keep a pointer to the array then you must treat the array as immutable and promise not to change it.
   * @param signature A pointer to a vector with the byte array.  This takes another reference and does not copy the bytes.
   */
  void 
  setPublisherPublicKeyDigest(const ptr_lib::shared_ptr<std::vector<unsigned char> > &publisherPublicKeyDigest) 
  { 
    publisherPublicKeyDigest_ = publisherPublicKeyDigest; 
  }

  void 
  setPublisherPublicKeyDigest(const ptr_lib::shared_ptr<const std::vector<unsigned char> > &publisherPublicKeyDigest) 
  { 
    publisherPublicKeyDigest_ = publisherPublicKeyDigest; 
  }
  
  /**
   * Clear the publisherPublicKeyDigest.
   */
  void 
  clear()
  {
    publisherPublicKeyDigest_.reset();
  }

private:
  Blob publisherPublicKeyDigest_;
};
  
}

#endif