NimbusFeatures.h - mozsearch

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 mozilla_NimbusFeatures_h

#define mozilla_NimbusFeatures_h

#include "mozilla/Preferences.h"

#include "nsTHashSet.h"

namespace mozilla {

class NimbusFeatures {

 private:

  // This branch is used to store experiment data

  static constexpr auto kSyncDataPrefBranch = "nimbus.syncdatastore."_ns;

  // This branch is used to store rollouts data

  static constexpr auto kSyncRolloutsPrefBranch =

      "nimbus.syncdefaultsstore."_ns;

  static void GetPrefName(const nsACString& branchPrefix,

                          const nsACString& aFeatureId,

                          const nsACString& aVariable, nsACString& aPref);

  static nsresult GetExperimentSlug(const nsACString& aFeatureId,

                                    nsACString& aExperimentSlug,

                                    nsACString& aBranchSlug);

 public:

  static bool GetBool(const nsACString& aFeatureId, const nsACString& aVariable,

                      bool aDefault);

  static int GetInt(const nsACString& aFeatureId, const nsACString& aVariable,

                    int aDefault);

  static nsresult OnUpdate(const nsACString& aFeatureId,

                           const nsACString& aVariable,

                           PrefChangedFunc aUserCallback, void* aUserData);

  static nsresult OffUpdate(const nsACString& aFeatureId,

                            const nsACString& aVariable,

                            PrefChangedFunc aUserCallback, void* aUserData);

  static nsresult RecordExposureEvent(const nsACString& aFeatureId,

                                      const bool aOnce = false);

};

}  // namespace mozilla

#endif