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// Copyright (c) 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include <string>
#include "base/macros.h"
class PrefRegistrySimple;
class PrefService;
namespace base {
class DictionaryValue;
namespace user_prefs {
class PrefRegistrySyncable;
namespace ios {
// Class that parses and manages promotion data from either a finch trial, json,
// or prefs.
class NotificationPromo {
explicit NotificationPromo(PrefService* local_state);
// Initialize from finch parameters.
void InitFromVariations();
// Initialize from json/prefs.
void InitFromJson(const base::DictionaryValue& json);
void InitFromPrefs();
// Can this promo be shown?
bool CanShow() const;
// The time when this promo can start being viewed.
double StartTime() const;
// The time after which this promo no longer can be viewed.
double EndTime() const;
// Mark the promo as closed when the user dismisses it.
void HandleClosed();
// Mark the promo has having been viewed.
void HandleViewed();
const std::string& promo_text() const { return promo_text_; }
const base::DictionaryValue* promo_payload() const {
return promo_payload_.get();
// Register preferences.
static void RegisterPrefs(PrefRegistrySimple* registry);
static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
static void MigrateUserPrefs(PrefService* user_prefs);
// For testing.
friend class NotificationPromoTest;
// Flush data from instance variables to prefs for storage.
void WritePrefs();
// Flush given parameters to prefs for storage.
void WritePrefs(int promo_id, double first_view_time, int views, bool closed);
// Tests views_ against max_views_.
// When max_views_ is 0, we don't cap the number of views.
bool ExceedsMaxViews() const;
// Tests |first_view_time_| + |max_seconds_| and -now().
// When either is 0, we don't cap the number of seconds.
bool ExceedsMaxSeconds() const;
// Returns whether the parameter associated with |param_name| is inside the
// payload.
bool IsPayloadParam(const std::string& param_name) const;
PrefService* local_state_;
std::string promo_text_;
std::unique_ptr<const base::DictionaryValue> promo_payload_;
double start_;
double end_;
int promo_id_;
// When max_views_ is 0, we don't cap the number of views.
int max_views_;
// When max_seconds_ is 0 or not set, we don't cap the number of seconds a
// promo can be visible.
int max_seconds_;
// Set when the promo is viewed for the first time.
double first_view_time_;
int views_;
bool closed_;
} // namespace ios