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#ifndef GEARS_GEOLOCATION_NETWORK_LOCATION_REQUEST_H__
#define GEARS_GEOLOCATION_NETWORK_LOCATION_REQUEST_H__

#include "gears/base/common/basictypes.h"  // For int64
#include "gears/base/common/common.h"
#include "gears/base/common/event.h"
#include "gears/blob/blob.h"
#include "gears/geolocation/geolocation.h"
#include "gears/geolocation/device_data_provider.h"
#include "gears/localserver/common/async_task.h"
#include <vector>

// An implementation of an AsyncTask that takes a set of device data and sends
// it to a server to get a position fix. It performs formatting of the request
// and interpretation of the response.
class NetworkLocationRequest : public AsyncTask {
 public:
  // Interface for receiving callbacks from a NetworkLocationRequest object.
  class ListenerInterface {
   public:
    virtual void LocationResponseAvailable(const Position &position) = 0;
  };
  static NetworkLocationRequest* Create(const std::string16 &url,
                                        const std::string16 &host_name,
                                        ListenerInterface *listener);
  bool MakeRequest(const RadioData &radio_data,
                   const WifiData &wifi_data,
                   bool request_address,
                   std::string16 address_language,
                   double latitude,
                   double longitude,
                   int64 timestamp);
  void StopThreadAndDelete();
 private:
  // Private constructor and destructor. Callers should use Create() and
  // StopThreadAndDelete.
  NetworkLocationRequest(const std::string16 &url,
                         const std::string16 &host_name,
                         ListenerInterface *listener);
  virtual ~NetworkLocationRequest() {}
  // AsyncTask implementation.
  virtual void Run();

  int64 timestamp_;  // The timestamp of the data used to make the request.
  scoped_refptr<BlobInterface> post_body_;
  ListenerInterface *listener_;
  std::string16 url_;
  std::string16 host_name_;
  Event run_complete_event_;
  DISALLOW_EVIL_CONSTRUCTORS(NetworkLocationRequest);
};

#endif  // GEARS_GEOLOCATION_NETWORK_LOCATION_REQUEST_H__