MediaController.h

#pragma once
 
#include "../SinricProRequest.h"
#include "../EventLimiter.h"
#include "../SinricProStrings.h"
 
#include "../SinricProNamespace.h"
namespace SINRICPRO_NAMESPACE {
 
FSTR(MEDIA, mediaControl);   // "mediaControl"
FSTR(MEDIA, control);        // "control"
 
using MediaControlCallback = std::function<bool(const String &, String &)>;
 
 
template <typename T>
class MediaController {
  public:
    MediaController();
 
    void onMediaControl(MediaControlCallback cb);
    bool sendMediaControlEvent(String mediaControl, String cause = FSTR_SINRICPRO_PHYSICAL_INTERACTION);
 
  protected:
    bool handleMediaController(SinricProRequest &request);
 
  private:
    EventLimiter event_limiter;
    MediaControlCallback mediaControlCallback;
};
 
template <typename T>
MediaController<T>::MediaController()
: event_limiter(EVENT_LIMIT_STATE) { 
  T* device = static_cast<T*>(this);
  device->registerRequestHandler(std::bind(&MediaController<T>::handleMediaController, this, std::placeholders::_1)); 
}
 
template <typename T>
void MediaController<T>::onMediaControl(MediaControlCallback cb) {
  mediaControlCallback = cb;
}
 
template <typename T>
bool MediaController<T>::sendMediaControlEvent(String mediaControl, String cause) {
  if (event_limiter) return false;
  T* device = static_cast<T*>(this);
 
  JsonDocument eventMessage = device->prepareEvent(FSTR_MEDIA_mediaControl, cause.c_str());
  JsonObject event_value = eventMessage[FSTR_SINRICPRO_payload][FSTR_SINRICPRO_value];
  event_value[FSTR_MEDIA_control] = mediaControl;
  return device->sendEvent(eventMessage);
}
 
template <typename T>
bool MediaController<T>::handleMediaController(SinricProRequest &request) {
  T* device = static_cast<T*>(this);
 
  bool success = false;
 
  if (mediaControlCallback && request.action == FSTR_MEDIA_mediaControl) {
    String mediaControl = request.request_value[FSTR_MEDIA_control];
    success = mediaControlCallback(device->deviceId, mediaControl);
    request.response_value[FSTR_MEDIA_control] = mediaControl;
    return success;
  }
 
  return success;
}
 
} // SINRICPRO_NAMESPACE
 
template <typename T>
using MediaController = SINRICPRO_NAMESPACE::MediaController<T>;