serializejson.cpp

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/**********************************************************************
 * LeechCraft - modular cross-platform feature rich internet client.
 * Copyright (C) 2006-2014  Georg Rudoy
 *
 * Distributed under the Boost Software License, Version 1.0.
 * (See accompanying file LICENSE or copy at https://www.boost.org/LICENSE_1_0.txt)
 **********************************************************************/
 
#include "serializejson.h"
#include <QJsonDocument>
#include <QFile>
#include "either.h"
 
namespace LC
{
namespace Util
{
    QByteArray SerializeJson (const QVariant& var, bool compact)
    {
        return QJsonDocument::fromVariant (var)
                .toJson (compact ? QJsonDocument::Compact : QJsonDocument::Indented);
    }
 
    using SerializeResult_t = Either<QString, Void>;
 
    SerializeResult_t SerializeJsonToFile (const QString& filename, const QVariant& var, bool compact)
    {
        QFile file { filename };
        if (!file.open (QIODevice::WriteOnly))
        {
            qWarning () << Q_FUNC_INFO
                    << "unable to open file"
                    << file.fileName ()
                    << "for writing:"
                    << file.errorString ();
            return SerializeResult_t::Left (file.errorString ());
        }
 
        if (!file.write (SerializeJson (var, compact)))
        {
            qWarning () << Q_FUNC_INFO
                    << "unable to write to file"
                    << file.fileName ()
                    << ":"
                    << file.errorString ();
            return SerializeResult_t::Left (file.errorString ());
        }
 
        return SerializeResult_t::Right ({});
    }
}
}