ZeroconfBrowserAndroid.h

/*
 *  Copyright (C) 2017 Christian Browet
 *  This file is part of Kodi - https://kodi.tv
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 *  See LICENSES/README.md for more information.
 */

#pragma once

#include "network/ZeroconfBrowser.h"
#include "threads/Event.h"

#include "platform/android/activity/JNIXBMCNsdManagerDiscoveryListener.h"
#include "platform/android/activity/JNIXBMCNsdManagerResolveListener.h"

#include <androidjni/NsdManager.h>
#include <androidjni/NsdServiceInfo.h>

class CZeroconfBrowserAndroid;

class CZeroconfBrowserAndroidDiscover : public jni::CJNIXBMCNsdManagerDiscoveryListener
{
public:
  explicit CZeroconfBrowserAndroidDiscover(CZeroconfBrowserAndroid* browser);
  bool IsActive() { return m_isActive; }

  // CJNINsdManagerDiscoveryListener interface
public:
  void onDiscoveryStarted(const std::string& serviceType) override;
  void onDiscoveryStopped(const std::string& serviceType) override;
  void onServiceFound(const jni::CJNINsdServiceInfo& serviceInfo) override;
  void onServiceLost(const jni::CJNINsdServiceInfo& serviceInfo) override;
  void onStartDiscoveryFailed(const std::string& serviceType, int errorCode) override;
  void onStopDiscoveryFailed(const std::string& serviceType, int errorCode) override;

protected:
  CZeroconfBrowserAndroid* m_browser;
  bool m_isActive = false;
};

class CZeroconfBrowserAndroidResolve : public jni::CJNIXBMCNsdManagerResolveListener
{
public:
  CZeroconfBrowserAndroidResolve();

  // CJNINsdManagerResolveListener interface
public:
  void onResolveFailed(const jni::CJNINsdServiceInfo& serviceInfo, int errorCode) override;
  void onServiceResolved(const jni::CJNINsdServiceInfo& serviceInfo) override;

  CEvent m_resolutionDone;
  int m_errorCode;
  jni::CJNINsdServiceInfo m_retServiceInfo;
};

class CZeroconfBrowserAndroid : public CZeroconfBrowser
{
  friend class CZeroconfBrowserAndroidDiscover;

public:
  CZeroconfBrowserAndroid();
  ~CZeroconfBrowserAndroid() override;

  // CZeroconfBrowser interface
protected:
  bool doAddServiceType(const std::string& fcr_service_type) override;
  bool doRemoveServiceType(const std::string& fcr_service_type) override;
  std::vector<ZeroconfService> doGetFoundServices() override;
  bool doResolveService(ZeroconfService& fr_service, double f_timeout) override;

  void addDiscoveredService(CZeroconfBrowserAndroidDiscover* browser, const CZeroconfBrowser::ZeroconfService& fcr_service);
  void removeDiscoveredService(CZeroconfBrowserAndroidDiscover* browser, const CZeroconfBrowser::ZeroconfService& fcr_service);

private:
  jni::CJNINsdManager m_manager;

  //shared variables (with guard)
  CCriticalSection m_data_guard;
  typedef std::map<std::string, CZeroconfBrowserAndroidDiscover*> tBrowserMap;
  // tBrowserMap maps service types the corresponding browser
  tBrowserMap m_service_browsers;
  //tDiscoveredServicesMap maps browsers to their discovered services + a ref-count for each service
  //ref-count is needed, because a service might pop up more than once, if there's more than one network-iface
  typedef std::map<CZeroconfBrowserAndroidDiscover*, std::vector<std::pair<ZeroconfService, unsigned int> > > tDiscoveredServicesMap;
  tDiscoveredServicesMap m_discovered_services;
};