DataInterface.h

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/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *     http://aws.amazon.com/apache2.0/
 *
 * or in the "license" file accompanying this file. This file is distributed
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
 * express or implied. See the License for the specific language governing
 * permissions and limitations under the License.
 */

#ifndef ACSDK_NOTIFIER_INTERNAL_DATAINTERFACE_H_
#define ACSDK_NOTIFIER_INTERNAL_DATAINTERFACE_H_

#include <functional>
#include <memory>

#include <acsdk/Notifier/internal/NotifierTraits.h>

namespace alexaClientSDK {
namespace notifier {

class DataInterface {
public:
    virtual ~DataInterface() noexcept = default;

    virtual void doAddStrongRefObserver(std::shared_ptr<void> observer) noexcept = 0;
    virtual void doAddWeakRefObserver(std::shared_ptr<void> observer) noexcept = 0;

    virtual void doRemoveObserver(std::shared_ptr<void> observer) noexcept = 0;

    virtual void doNotifyObservers(std::function<void(const std::shared_ptr<void>&)> notify) noexcept = 0;

    virtual bool doNotifyObserversInReverse(std::function<void(const std::shared_ptr<void>&)> notify) noexcept = 0;

    virtual void doSetAddObserverFunction(
        std::function<void(const std::shared_ptr<void>&)> addObserverFunc) noexcept = 0;
};

std::unique_ptr<DataInterface> createDataInterface();

}  // namespace notifier
}  // namespace alexaClientSDK

#endif  // ACSDK_NOTIFIER_INTERNAL_DATAINTERFACE_H_