/**

 *

 *    Copyright (c) 2021 Project CHIP Authors

 *

 *    Licensed under the Apache License, Version 2.0 (the "License");

 *    you may not use this file except in compliance with the License.

 *    You may obtain a copy of the License at

 *

 *        http://www.apache.org/licenses/LICENSE-2.0

 *

 *    Unless required by applicable law or agreed to in writing, software

 *    distributed under the License 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.

 */

/****************************************************************************

 * @file

 * @brief Routines for the Low Power plugin, the

 *server implementation of the Low Power cluster.

 *******************************************************************************

 ******************************************************************************/

#include <app/clusters/low-power-server/low-power-delegate.h>

#include <app/clusters/low-power-server/low-power-server.h>

#include <app/CommandHandler.h>

#include <app/ConcreteCommandPath.h>

#include <app/util/attribute-storage.h>

#include <app/util/config.h>

#include <platform/CHIPDeviceConfig.h>

#include <protocols/interaction_model/StatusCode.h>

#include <tracing/macros.h>

using namespace chip;

using namespace chip::app::Clusters;

using namespace chip::app::Clusters::LowPower;

static constexpr size_t kLowPowerDelegateTableSize =

    MATTER_DM_LOW_POWER_CLUSTER_SERVER_ENDPOINT_COUNT + CHIP_DEVICE_CONFIG_DYNAMIC_ENDPOINT_COUNT;

static_assert(kLowPowerDelegateTableSize <= kEmberInvalidEndpointIndex, "LowPower Delegate table size error");

// -----------------------------------------------------------------------------

// Delegate Implementation

using chip::app::Clusters::LowPower::Delegate;

namespace {

Delegate * gDelegateTable[kLowPowerDelegateTableSize] = { nullptr };

Delegate * GetDelegate(EndpointId endpoint)

{

    uint16_t ep = emberAfGetClusterServerEndpointIndex(endpoint, chip::app::Clusters::LowPower::Id,

                                                       MATTER_DM_LOW_POWER_CLUSTER_SERVER_ENDPOINT_COUNT);

    return (ep >= kLowPowerDelegateTableSize ? nullptr : gDelegateTable[ep]);

}

bool isDelegateNull(Delegate * delegate, EndpointId endpoint)

{

    if (delegate == nullptr)

    {

        ChipLogProgress(Zcl, "LowPower has no delegate set for endpoint:%u", endpoint);

        return true;

    }

    return false;

}

} // namespace

namespace chip {

namespace app {

namespace Clusters {

namespace LowPower {

void SetDefaultDelegate(EndpointId endpoint, Delegate * delegate)

{

    uint16_t ep = emberAfGetClusterServerEndpointIndex(endpoint, chip::app::Clusters::LowPower::Id,

                                                       MATTER_DM_LOW_POWER_CLUSTER_SERVER_ENDPOINT_COUNT);

    if (ep < kLowPowerDelegateTableSize)

    {

        gDelegateTable[ep] = delegate;

    }

    else

    {

    }

}

} // namespace LowPower

} // namespace Clusters

} // namespace app

} // namespace chip

bool emberAfLowPowerClusterSleepCallback(app::CommandHandler * command, const app::ConcreteCommandPath & commandPath,

                                         const Commands::Sleep::DecodableType & commandData)

{

    MATTER_TRACE_SCOPE("Sleep", "LowPower");

    using Protocols::InteractionModel::Status;

    EndpointId endpoint = commandPath.mEndpointId;

    Delegate * delegate = GetDelegate(endpoint);

    Status status;

    if (isDelegateNull(delegate, endpoint))

    {

        ChipLogError(Zcl, "emberAfLowPowerClusterSleepCallback: no delegate");

        status = Status::Failure;

    }

    else

    {

        bool success = delegate->HandleSleep();

        status       = success ? Status::Success : Status::Failure;

    }

    command->AddStatus(commandPath, status);

    return true;

}

void MatterLowPowerPluginServerInitCallback() {}

void MatterLowPowerPluginServerShutdownCallback() {}