SettingsManagerBuilderBase.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 ALEXA_CLIENT_SDK_SETTINGS_INCLUDE_SETTINGS_SETTINGSMANAGERBUILDERBASE_H_
#define ALEXA_CLIENT_SDK_SETTINGS_INCLUDE_SETTINGS_SETTINGSMANAGERBUILDERBASE_H_

#include <tuple>

#include <AVSCommon/Utils/Optional.h>

#include "Settings/SettingEventMetadata.h"
#include "Settings/SettingsManager.h"

namespace alexaClientSDK {
namespace settings {

template <class ManagerT>
class SettingsManagerBuilderBase {};

template <typename... SettingsT>
class SettingsManagerBuilderBase<settings::SettingsManager<SettingsT...>> {
public:
    template <size_t index>
    using SettingType = typename std::tuple_element<index, std::tuple<SettingsT...>>::type;

    template <size_t index>
    using ValueType = typename SettingType<index>::ValueType;

    using SettingConfigurations = std::tuple<SettingConfiguration<SettingsT>...>;

    static constexpr size_t NUMBER_OF_SETTINGS{sizeof...(SettingsT)};

    virtual std::unique_ptr<settings::SettingsManager<SettingsT...>> build() = 0;

    const SettingConfigurations getConfigurations() const;

    virtual ~SettingsManagerBuilderBase() = default;

protected:
    SettingConfigurations m_settingConfigs;
};

template <typename... SettingsT>
const std::tuple<SettingConfiguration<SettingsT>...> SettingsManagerBuilderBase<
    SettingsManager<SettingsT...>>::getConfigurations() const {
    return m_settingConfigs;
}

}  // namespace settings
}  // namespace alexaClientSDK

#endif  // ALEXA_CLIENT_SDK_SETTINGS_INCLUDE_SETTINGS_SETTINGSMANAGERBUILDERBASE_H_