#include "ModelUrlMsg.h"

#include <string.h>

namespace RoboidControl {

ModelUrlMsg::ModelUrlMsg(unsigned char networkId, Thing* thing) {
  this->networkId = networkId;
  this->thingId = thing->id;
  if (thing->modelUrl == nullptr)
    this->urlLength = 0;
  else
    this->urlLength = (unsigned char)strlen(thing->modelUrl);

  // the url string in the buffer is not \0 terminated!
  char* url = new char[this->urlLength + 1];
  for (int i = 0; i < this->urlLength; i++)
    url[i] = thing->modelUrl[i];
  url[this->urlLength] = '\0';
  this->url = url;
}

ModelUrlMsg::ModelUrlMsg(const char* buffer) {
  unsigned char ix = 1;  // first byte is msg id
  this->networkId = buffer[ix++];
  this->thingId = buffer[ix++];
  this->urlLength = buffer[ix++];
  // this->url = &buffer[ix];  // dangerous! name should not be used anymore
  // after
  //                           // buffer has been re-used...

  // the url string in the buffer is not \0 terminated!
  char* url = new char[this->urlLength + 1];
  for (int i = 0; i < this->urlLength; i++)
    url[i] = buffer[ix++];
  url[this->urlLength] = '\0';
  this->url = url;
}

ModelUrlMsg::~ModelUrlMsg() {
  delete[] this->url;
}

unsigned char ModelUrlMsg::Serialize(char* buffer) {
  if (this->urlLength == 0 || this->url == nullptr)
    return 0;
#if defined(DEBUG)
  std::cout << "Send ModelUrlMsg [" << (int)this->networkId << "/"
            << (int)this->thingId << "] " << (int)this->urlLength << " "
            << this->url << std::endl;
#endif
  unsigned char ix = 0;
  buffer[ix++] = this->id;
  buffer[ix++] = this->networkId;
  buffer[ix++] = this->thingId;
  // LowLevelMessages::SendFloat16(buffer, &ix, this->scale);
  buffer[ix++] = this->urlLength;
  for (int urlIx = 0; urlIx < this->urlLength; urlIx++)
    buffer[ix++] = url[urlIx];
  return ix;
}

}  // namespace RoboidControl