loggershark/gui/viewmodel/displayString/util/ScopeTranslationParser.cpp

#include "viewmodel/displayString/util/ScopeTranslationParser.h"

#include <QJsonDocument>
#include <QJsonArray>
#include <QFile>
#include <limits>

constexpr int INVALID_SCOPE_ID = std::numeric_limits<int>::min();

/*************************************************************************************************/
ScopeTranslationParser::ScopeTranslationParser(QString configFilePath) :
    _configFilePath(configFilePath)
{
}

/*************************************************************************************************/
QMap<int, QString> ScopeTranslationParser::parse() const
{
    auto scopes = createJsonObject(readConfigFile())["scopes"];
    QMap<int, QString> map;

    if(scopes.isArray())
    {
        for(const auto val : scopes.toArray())
        {
            auto translation = getScopeTranslationFromJsonObj(val.toObject());
            if(translation.has_value())
            {
                map[translation.value().first] = translation.value().second;
            }
        }
    }

    return map;
}

/*************************************************************************************************/
QByteArray ScopeTranslationParser::readConfigFile() const
{
    QFile file(_configFilePath);

    return file.readAll();
}

/*************************************************************************************************/
QJsonObject ScopeTranslationParser::createJsonObject(const QByteArray& jsonFileContent) const
{
    QJsonDocument doc = QJsonDocument::fromJson(jsonFileContent);

    return doc.object();
}

/*************************************************************************************************/
std::optional<QPair<int, QString> > ScopeTranslationParser::getScopeTranslationFromJsonObj(
    const QJsonObject& obj) const
{
    auto id = obj["id"].toInt(INVALID_SCOPE_ID);
    auto nameVal = obj["name"];

    if(id == INVALID_SCOPE_ID or not nameVal.isString())
    {
        return std::nullopt;
    }

    return QPair<int, QString>{id, nameVal.toString()};
}