Repository: xbmc/xbmc
File: xbmc/platform/linux/WebOSTVPlatformConfig.cpp (C++)

Code before:
    const std::string arcActivation = parsed[ARC_ACTIVATION].asString();

    if (arcActivation == EARC)
    {
      const CVariant& caps = parsed[EARC_CAPABILITY];
      if (caps.isArray())
      {
        auto it = std::find_if(caps.begin_array(), caps.end_array(),
                               [](const CVariant& v) { return v.asString() == DDPLUS; });
        if (it != caps.end_array())
        {
          self->m_ddPlusSupported = true;
        }
      }
    }

    return true;
  };

  if (HLunaServiceCall(LUNA_ARC_STATUS, "{}", &m_requestContextARC))
  {
    CLog::LogF(LOGWARNING, "Luna ARC controller request call failed");
  }
}

bool WebOSTVPlatformConfig::SupportsEARCDDPlus()
{
  return m_ddPlusSupported;
}


Review comment (suggestion):
Can you rename `DDPlus` into `EAC3` here and in the other places to match the existing naming? I'd also consider dropping the EARC part.

Code after:
/*
 *  Copyright (C) 2025 Team Kodi
 *  This file is part of Kodi - https://kodi.tv
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 *  See LICENSES/README.md for more information.
 */

#include "WebOSTVPlatformConfig.h"

#include "utils/JSONVariantParser.h"
#include "utils/JSONVariantWriter.h"
#include "utils/Variant.h"
#include "utils/log.h"

namespace
{
constexpr const char* LUNA_GET_CONFIG = "luna://com.webos.service.config/getConfigs";

constexpr const char* CONFIGS = "configs";
constexpr const char* CONFIG_NAMES = "configNames";
const auto QUERY_CONFIG = std::vector<std::string>{"tv.model.*", "tv.nyx.*"};

constexpr const char* EDID_TYPE = "tv.model.edidType";
constexpr const char* SUPPORT_HDR = "tv.model.supportHDR";

constexpr const char* PLATFORM_CODE = "tv.nyx.platformCode";

constexpr const char* DTS = "dts";

constexpr const char* LUNA_ARC_STATUS = "luna://com.webos.service.arccontroller/getARCState";

constexpr const char* ARC_ACTIVATION = "arcActivation";
constexpr const char* EARC_CAPABILITY = "earcCapability";
constexpr const char* SUPPORT_EARCDDPlus = "eARCDDPlus";
constexpr const char* EARC = "eARC";
constexpr const char* DDPLUS = "DD+";

CVariant ms_config;
} // namespace

void WebOSTVPlatformConfig::Load()
{
  HContext requestContext;
  requestContext.pub = true;
  requestContext.multiple = false;
  requestContext.callback = [](LSHandle* sh, LSMessage* msg, void* ctx)
  {
    std::string message = HLunaServiceMessage(msg);
    CLog::LogF(LOGDEBUG, "TV config: {}", message);
    if (!CJSONVariantParser::Parse(message, ms_config))
    {
      CLog::LogF(LOGERROR, "Failed to parse config JSON from Luna service");
      return false;
    }
    ms_config = CVariant(ms_config[CONFIGS]);
    return false;
  };

  CVariant request;
  request[CONFIG_NAMES] = QUERY_CONFIG;
  std::string payload;
  CJSONVariantWriter::Write(request, payload, true);
  if (HLunaServiceCall(LUNA_GET_CONFIG, payload.c_str(), &requestContext))
  {
    CLog::LogF(LOGWARNING, "Luna get config request call failed");
  }
}

int WebOSTVPlatformConfig::GetWebOSVersion()
{
  return ms_config[PLATFORM_CODE].asInteger();
}

bool WebOSTVPlatformConfig::SupportsDTS()
{
  return ms_config[EDID_TYPE].asString().find(DTS) != std::string::npos;
}

bool WebOSTVPlatformConfig::SupportsHDR()
{
  return ms_config[SUPPORT_HDR].asBoolean();
}

void WebOSTVPlatformConfig::LoadARCStatus()
{
  m_requestContextARC->pub = true;
  m_requestContextARC->multiple = true;
  m_requestContextARC->callback = [](LSHandle* sh, LSMessage* msg, void* ctx) -> bool
  {
    auto* self = static_cast<WebOSTVPlatformConfig*>(ctx);
    std::string message = HLunaServiceMessage(msg);
    CLog::LogF(LOGDEBUG, "ARC controller: {}", message);

    CVariant parsed;
    if (!CJSONVariantParser::Parse(message, parsed))
    {
      CLog::LogF(LOGERROR, "Failed to parse ARC controller JSON");
      return false;
    }

    const std::string arcActivation = parsed[ARC_ACTIVATION].asString();

    if (arcActivation == EARC)
    {
      const CVariant& caps = parsed[EARC_CAPABILITY];
      self->m_eAC3Supported =
          caps.isArray() && std::any_of(caps.begin_array(), caps.end_array(),
                                        [](const CVariant& v) { return v.asString() == DDPLUS; });
    }

    return true;
  };

  if (HLunaServiceCall(LUNA_ARC_STATUS, "{}", m_requestContextARC.get()))
  {
    CLog::LogF(LOGWARNING, "Luna ARC controller request call failed");
  }
}

bool WebOSTVPlatformConfig::SupportsEAC3()
{
  return m_eAC3Supported;
}