examples/tv-app/tv-common/clusters/messages/MessagesManager.cpp

/**
 *
 *    Copyright (c) 2024 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.
 */

#include "MessagesManager.h"

#include <app-common/zap-generated/attributes/Accessors.h>
#include <vector>

using namespace std;
using namespace chip;
using namespace chip::app;
using namespace chip::app::Clusters::Messages;
using Message               = chip::app::Clusters::Messages::Structs::MessageStruct::Type;
using MessageResponseOption = chip::app::Clusters::Messages::Structs::MessageResponseOptionStruct::Type;

// Commands
CHIP_ERROR MessagesManager::HandlePresentMessagesRequest(
    const ByteSpan & messageId, const MessagePriorityEnum & priority, const BitMask<MessageControlBitmap> & messageControl,
    const DataModel::Nullable<uint32_t> & startTime, const DataModel::Nullable<uint16_t> & duration, const CharSpan & messageText,
    const Optional<DataModel::DecodableList<MessageResponseOption>> & responses)
{
    ChipLogProgress(Zcl, "HandlePresentMessagesRequest message:%s", std::string(messageText.data(), messageText.size()).c_str());

    auto cachedMessage = CachedMessage(messageId, priority, messageControl, startTime, duration,
                                       std::string(messageText.data(), messageText.size()));
    if (responses.HasValue())
    {
        auto iter = responses.Value().begin();
        while (iter.Next())
        {
            auto & response = iter.GetValue();

            CachedMessageOption option(response.messageResponseID.Value(),
                                       std::string(response.label.Value().data(), response.label.Value().size()));

            cachedMessage.AddOption(option);
        }
    }

    mCachedMessages.push_back(cachedMessage);

    // Add your code to present Message
    ChipLogProgress(Zcl, "HandlePresentMessagesRequest complete");
    return CHIP_NO_ERROR;
}

CHIP_ERROR MessagesManager::HandleCancelMessagesRequest(const DataModel::DecodableList<ByteSpan> & messageIds)
{
    auto iter = messageIds.begin();
    while (iter.Next())
    {
        auto & id = iter.GetValue();

        mCachedMessages.remove_if([id](CachedMessage & entry) { return entry.MessageIdMatches(id); });
        // per spec, the command succeeds even when the message id does not match an existing message
    }
    return CHIP_NO_ERROR;
}

// Attributes
CHIP_ERROR MessagesManager::HandleGetMessages(AttributeValueEncoder & aEncoder)
{
    return aEncoder.EncodeList([this](const auto & encoder) -> CHIP_ERROR {
        for (CachedMessage & entry : mCachedMessages)
        {
            ReturnErrorOnFailure(encoder.Encode(entry.GetMessage()));
        }
        return CHIP_NO_ERROR;
    });
}

CHIP_ERROR MessagesManager::HandleGetActiveMessageIds(AttributeValueEncoder & aEncoder)
{
    return aEncoder.EncodeList([this](const auto & encoder) -> CHIP_ERROR {
        for (CachedMessage & entry : mCachedMessages)
        {
            ReturnErrorOnFailure(encoder.Encode(entry.GetMessage().messageID));
        }
        return CHIP_NO_ERROR;
    });
}

// Global Attributes
uint32_t MessagesManager::GetFeatureMap(EndpointId endpoint)
{
    BitMask<Feature> FeatureMap;
    FeatureMap.Set(Feature::kReceivedConfirmation);
    FeatureMap.Set(Feature::kConfirmationResponse);
    FeatureMap.Set(Feature::kConfirmationReply);
    FeatureMap.Set(Feature::kProtectedMessages);

    uint32_t featureMap = FeatureMap.Raw();
    ChipLogProgress(Zcl, "GetFeatureMap featureMap=%d", featureMap);
    // forcing to all features since this implementation supports all
    // Attributes::FeatureMap::Get(endpoint, &featureMap);
    return featureMap;
}