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// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_UNIFIED_CONSENT_MSBB_SESSION_DURATIONS_METRICS_RECORDER_H_
#define COMPONENTS_UNIFIED_CONSENT_MSBB_SESSION_DURATIONS_METRICS_RECORDER_H_
#include <memory>
#include "base/time/time.h"
#include "base/timer/elapsed_timer.h"
#include "components/unified_consent/url_keyed_data_collection_consent_helper.h"
class PrefService;
namespace unified_consent {
// Tracks the active browsing time that the user spends with URL-keyed
// anonymized data collection, aka "Make Searches and Browsing Better",
// enabled/disabled as a fraction of their total browsing time.
class MsbbSessionDurationsMetricsRecorder
: public UrlKeyedDataCollectionConsentHelper::Observer {
public:
// Callers must ensure that the parameters outlive this object.
explicit MsbbSessionDurationsMetricsRecorder(PrefService* pref_service);
MsbbSessionDurationsMetricsRecorder(
const MsbbSessionDurationsMetricsRecorder&) = delete;
MsbbSessionDurationsMetricsRecorder& operator=(
const MsbbSessionDurationsMetricsRecorder&) = delete;
virtual ~MsbbSessionDurationsMetricsRecorder();
// Informs this service that a session started at |session_start| time.
void OnSessionStarted(base::TimeTicks session_start);
void OnSessionEnded(base::TimeDelta session_length);
// UrlKeyedDataCollectionConsentHelper::Observer:
void OnUrlKeyedDataCollectionConsentStateChanged(
UrlKeyedDataCollectionConsentHelper* consent_helper) override;
private:
static void LogMsbbDuration(bool msbb_enabled,
base::TimeDelta session_length);
std::unique_ptr<UrlKeyedDataCollectionConsentHelper> consent_helper_;
// The state of the MSBB setting as of the start of the current recording
// session (see timers below). Used to detect when the state changes.
bool last_msbb_enabled_ = false;
// Tracks the elapsed active session time while the browser is open. The timer
// is absent if there's no active session.
std::unique_ptr<base::ElapsedTimer> total_session_timer_;
// Tracks the elapsed active session time in the current MSBB state. Absent
// if there's no active session.
std::unique_ptr<base::ElapsedTimer> msbb_state_timer_;
};
} // namespace unified_consent
#endif // COMPONENTS_UNIFIED_CONSENT_MSBB_SESSION_DURATIONS_METRICS_RECORDER_H_
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