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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROMEOS_ASH_COMPONENTS_TETHER_HOTSPOT_USAGE_DURATION_TRACKER_H_
#define CHROMEOS_ASH_COMPONENTS_TETHER_HOTSPOT_USAGE_DURATION_TRACKER_H_
#include "base/memory/raw_ptr.h"
#include "base/time/time.h"
#include "chromeos/ash/components/tether/active_host.h"
namespace base {
class Clock;
} // namespace base
namespace ash {
namespace tether {
// Records a metric which tracks the amount of time that users spend connected
// to Tether hotspots.
class HotspotUsageDurationTracker : public ActiveHost::Observer {
public:
explicit HotspotUsageDurationTracker(ActiveHost* active_host,
base::Clock* clock);
HotspotUsageDurationTracker(const HotspotUsageDurationTracker&) = delete;
HotspotUsageDurationTracker& operator=(const HotspotUsageDurationTracker&) =
delete;
virtual ~HotspotUsageDurationTracker();
protected:
// ActiveHost::Observer:
void OnActiveHostChanged(
const ActiveHost::ActiveHostChangeInfo& change_info) override;
private:
void HandleUnexpectedCurrentSession(
const ActiveHost::ActiveHostStatus& active_host_status);
raw_ptr<ActiveHost> active_host_;
raw_ptr<base::Clock> clock_;
base::Time last_connection_start_;
};
} // namespace tether
} // namespace ash
#endif // CHROMEOS_ASH_COMPONENTS_TETHER_HOTSPOT_USAGE_DURATION_TRACKER_H_
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