#ifndef BASE_KEY_TONE_HPP
#define BASE_KEY_TONE_HPP

#include "handler.hpp"
#include "macros.h"
#include "media/ZKMediaPlayer.h"
#include "manager/ConfigManager.h"
#include "stream_player.h"

namespace base {

class KeyTone {
  DISALLOW_COPY_AND_ASSIGN(KeyTone)
  DECLARE_INSTANCE(KeyTone)
private:
  enum Messages {
    kClick,
  };
public:
  static void Trigger() {
    if (!instance()->enable_) {
      return;
    }
    instance()->handler_.remove_messages(kClick);
    base::message<float> msg(kClick, instance()->click_volume_);
    instance()->handler_.send_message(msg);
  }

  static void Announce(float volume, int delayed) {
    base::message<float> msg(kClick, volume);
    instance()->handler_.send_message_delayed(msg, delayed);
  }

  static void set_enable(bool enable) {
    instance()->enable_ = enable;
  }

  static void set_volume(float volume) {
    instance()->click_volume_ = volume;
  }

private:
  KeyTone() {
    handler_.set_message_handler(
        [](const base::message<float>* msg, const void* user_data){
      ((KeyTone*)user_data)->HandleMessage(msg);
    }, this);
    stream_player_ = new fy::StreamPlayer();
    click_volume_ = 1.0;
    stream_player_->SetVolume(click_volume_);

    enable_ = true;
  }

  ~KeyTone() {
    if (stream_player_) {
      delete stream_player_;
    }
  }

  void HandleMessage(const base::message<float>* msg) {
    stream_player_->SetVolume(msg->obj);
    stream_player_->Play(CONFIGMANAGER->getResFilePath("keytone.wav"));
  }

private:
  base::handler<float> handler_;
  fy::StreamPlayer* stream_player_;
  bool enable_;
  float click_volume_;
};

} /* namespace base */

#endif