/* XMRig
 * Copyright 2010      Jeff Garzik <jgarzik@pobox.com>
 * Copyright 2012-2014 pooler      <pooler@litecoinpool.org>
 * Copyright 2014      Lucas Jones <https://github.com/lucasjones>
 * Copyright 2014-2016 Wolf9466    <https://github.com/OhGodAPet>
 * Copyright 2016      Jay D Dee   <jayddee246@gmail.com>
 * Copyright 2017-2018 XMR-Stak    <https://github.com/fireice-uk>, <https://github.com/psychocrypt>
 * Copyright 2018-2019 SChernykh   <https://github.com/SChernykh>
 * Copyright 2016-2019 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
 *
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program. If not, see <http://www.gnu.org/licenses/>.
 */


#include "backend/cpu/Cpu.h"
#include "backend/cpu/platform/HwlocCpuInfo.h"
#include "base/io/json/Json.h"
#include "crypto/rx/RxConfig.h"
#include "rapidjson/document.h"


namespace xmrig {

static const char *kInit = "init";
static const char *kNUMA = "numa";

}


rapidjson::Value xmrig::RxConfig::toJSON(rapidjson::Document &doc) const
{
    using namespace rapidjson;
    auto &allocator = doc.GetAllocator();

    Value obj(kObjectType);

    obj.AddMember(StringRef(kInit), m_threads, allocator);

    if (!m_nodeset.empty()) {
        Value numa(kArrayType);

        for (uint32_t i : m_nodeset) {
            numa.PushBack(i, allocator);
        }

        obj.AddMember(StringRef(kNUMA), numa, allocator);
    }
    else {
        obj.AddMember(StringRef(kNUMA), m_numa, allocator);
    }

    return obj;
}


bool xmrig::RxConfig::read(const rapidjson::Value &value)
{
    if (value.IsObject()) {
        m_threads = Json::getInt(value, kInit, m_threads);

        const auto &numa = Json::getValue(value, kNUMA);
        if (numa.IsArray()) {
            m_nodeset.reserve(numa.Size());

            for (const auto &node : numa.GetArray()) {
                if (node.IsUint()) {
                    m_nodeset.emplace_back(node.GetUint());
                }
            }
        }
        else if (numa.IsBool()) {
            m_numa = numa.GetBool();
        }

        return true;
    }

    return false;
}


std::vector<uint32_t> xmrig::RxConfig::nodeset() const
{
    if (!m_nodeset.empty()) {
        return m_nodeset;
    }

    return (m_numa && Cpu::info()->nodes() > 1) ? static_cast<HwlocCpuInfo *>(Cpu::info())->nodeset() : std::vector<uint32_t>();
}
