/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef __nsWifiMonitor__
#define __nsWifiMonitor__

#include "nsIWifiMonitor.h"
#include "nsCOMPtr.h"
#include "nsAutoPtr.h"
#include "nsProxyRelease.h"
#include "nsIThread.h"
#include "nsIRunnable.h"
#include "nsCOMArray.h"
#include "nsIWifiListener.h"
#include "mozilla/ReentrantMonitor.h"
#include "prlog.h"
#include "nsIObserver.h"
#include "nsTArray.h"
#include "nsITimer.h"
#include "mozilla/Attributes.h"
#include "nsIInterfaceRequestor.h"

#ifdef XP_WIN
#include "win_wifiScanner.h"
#endif

#if defined(PR_LOGGING)
extern PRLogModuleInfo *gWifiMonitorLog;
#endif
#define LOG(args)     PR_LOG(gWifiMonitorLog, PR_LOG_DEBUG, args)

class nsWifiAccessPoint;

#define kDefaultWifiScanInterval 5 /* seconds */

class nsWifiListener
{
 public:

  explicit nsWifiListener(nsMainThreadPtrHolder<nsIWifiListener>* aListener)
  {
    mListener = aListener;
    mHasSentData = false;
  }
  ~nsWifiListener() {}

  nsMainThreadPtrHandle<nsIWifiListener> mListener;
  bool mHasSentData;
};

#ifndef MOZ_WIDGET_GONK
class nsWifiMonitor MOZ_FINAL : nsIRunnable, nsIWifiMonitor, nsIObserver
{
 public:
  NS_DECL_THREADSAFE_ISUPPORTS
  NS_DECL_NSIWIFIMONITOR
  NS_DECL_NSIRUNNABLE
  NS_DECL_NSIOBSERVER

  nsWifiMonitor();

 private:
  ~nsWifiMonitor();

  nsresult DoScan();

  nsresult CallWifiListeners(const nsCOMArray<nsWifiAccessPoint> &aAccessPoints,
                             bool aAccessPointsChanged);

  bool mKeepGoing;
  nsCOMPtr<nsIThread> mThread;

  nsTArray<nsWifiListener> mListeners;

  mozilla::ReentrantMonitor mReentrantMonitor;

#ifdef XP_WIN
  nsAutoPtr<WinWifiScanner> mWinWifiScanner;
#endif
};
#else
#include "nsIWifi.h"
class nsWifiMonitor MOZ_FINAL : nsIWifiMonitor, nsIWifiScanResultsReady, nsIObserver
{
 public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIWIFIMONITOR
  NS_DECL_NSIOBSERVER
  NS_DECL_NSIWIFISCANRESULTSREADY

  nsWifiMonitor();

 private:
  ~nsWifiMonitor();

  void ClearTimer() {
    if (mTimer) {
      mTimer->Cancel();
      mTimer = nullptr;
    }
  }
  void StartScan();
  nsCOMArray<nsWifiAccessPoint> mLastAccessPoints;
  nsTArray<nsWifiListener> mListeners;
  nsCOMPtr<nsITimer> mTimer;
};
#endif

#endif