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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 CHROMEOS_ASH_COMPONENTS_CARRIER_LOCK_FCM_TOPIC_SUBSCRIBER_H_
#define CHROMEOS_ASH_COMPONENTS_CARRIER_LOCK_FCM_TOPIC_SUBSCRIBER_H_
#include "base/component_export.h"
#include "base/functional/callback_forward.h"
#include "chromeos/ash/components/carrier_lock/common.h"
namespace ash::carrier_lock {
// This class handles the registration to Firebase Cloud Messaging service and
// subscription to specified public topic for receiving asynchronous
// notifications when the Carrier Lock configuration changes.
class COMPONENT_EXPORT(CHROMEOS_ASH_COMPONENTS_CARRIER_LOCK)
FcmTopicSubscriber {
public:
using NotificationCallback = base::RepeatingCallback<void(bool from_topic)>;
FcmTopicSubscriber() = default;
virtual ~FcmTopicSubscriber() = default;
// Initialize notification handler
virtual bool Initialize(NotificationCallback notification) = 0;
// Register to FCM and request a Token
virtual void RequestToken(Callback callback) = 0;
// Verify Token and subscribe to notification topic
virtual void SubscribeTopic(const std::string& topic,
Callback callback) = 0;
// Return the Token received in response
virtual std::string const token() = 0;
protected:
friend class FcmTopicSubscriberTest;
void set_is_testing(bool testing) { is_testing_ = testing; }
bool is_testing() { return is_testing_; }
bool is_testing_ = false;
};
} // namespace ash::carrier_lock
#endif // CHROMEOS_ASH_COMPONENTS_CARRIER_LOCK_FCM_TOPIC_SUBSCRIBER_H_
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