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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_METRICS_STRUCTURED_CHROME_STRUCTURED_METRICS_DELEGATE_H_
#define CHROME_BROWSER_METRICS_STRUCTURED_CHROME_STRUCTURED_METRICS_DELEGATE_H_
#include <memory>
#include "base/no_destructor.h"
#include "components/metrics/structured/event.h"
#include "components/metrics/structured/structured_events.h"
#include "components/metrics/structured/structured_metrics_client.h"
#include "components/prefs/pref_registry_simple.h"
namespace metrics::structured {
namespace {
using RecordingDelegate = StructuredMetricsClient::RecordingDelegate;
} // namespace
// Singleton to record structured metrics on Chrome.
//
// This class unifies all platform (currently only ChromeOS) specific recorder
// implementations under a common API.
//
// This class delegates to a Recorder that will be created on ctor.
// |Initialize()| should be called ASAP. When |Initialize()| should be called is
// platform specific.
class ChromeStructuredMetricsDelegate : public RecordingDelegate {
public:
// Pointer to singleton.
static ChromeStructuredMetricsDelegate* Get();
ChromeStructuredMetricsDelegate(
const ChromeStructuredMetricsDelegate& recorder) = delete;
ChromeStructuredMetricsDelegate& operator=(
const ChromeStructuredMetricsDelegate& recorder) = delete;
// Initializes the recorder. If this is called more than once, this operation
// will no-op. This must be called before any recording is done or the record
// operations will no-op.
void Initialize();
// RecordingDelegate:
void RecordEvent(Event&& event) override;
bool IsReadyToRecord() const override;
private:
ChromeStructuredMetricsDelegate();
~ChromeStructuredMetricsDelegate() override;
friend class base::NoDestructor<ChromeStructuredMetricsDelegate>;
std::unique_ptr<RecordingDelegate> delegate_;
bool is_initialized_ = false;
};
} // namespace metrics::structured
#endif // CHROME_BROWSER_METRICS_STRUCTURED_CHROME_STRUCTURED_METRICS_DELEGATE_H_
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