networkresult.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 "networkresult.h"
#include <util/sll/either.h>
#include <util/sll/visitor.h>

namespace LC::Util
{
    QDebug operator<< (QDebug dbg, const NetworkReplyError& error)
    {
        QDebugStateSaver saver { dbg };

        dbg.nospace () << "{ url: " << error.Url_
                << "; error: " << error.Error_
                << "; text: " << error.ErrorText_
                << " }";

        return dbg;
    }

    NetworkReplyErrorException::NetworkReplyErrorException (NetworkReplyError error)
    : std::runtime_error { "network reply returned an error: " + error.ErrorText_.toStdString () }
    , Error_ { std::move (error) }
    {
    }

    const NetworkReplyError& NetworkReplyErrorException::GetError () const
    {
        return Error_;
    }

    QDebug operator<< (QDebug dbg, const NetworkReplyErrorException& exception)
    {
        return dbg << exception.GetError ();
    }

    std::optional<NetworkReplyError> NetworkResult::IsError () const
    {
        if (const auto errPtr = std::get_if<NetworkReplyError> (this))
            return *errPtr;
        return {};
    }

    QByteArray NetworkResult::GetReplyData () const
    {
        return Visit (*this,
                [] (const NetworkReplySuccess& success) { return success.Data_; },
                [] (const NetworkReplyError& error) -> QByteArray { throw NetworkReplyErrorException { error }; });
    }

    Either<QString, QByteArray> NetworkResult::ToEither (const std::source_location& loc) const
    {
        using Result_t = Either<QString, QByteArray>;
        return Visit (*this,
                [] (const NetworkReplySuccess& success) { return Result_t { success.Data_ }; },
                [&loc] (const NetworkReplyError& error)
                {
                    QMessageLogger { loc.file_name (), static_cast<int> (loc.line ()), loc.function_name () }.warning () << error;
                    return Result_t { error.ErrorText_ };
                });
    }

    Either<QString, QByteArray> NetworkResult::ToEither (const QString& errorContext) const
    {
        using Result_t = Either<QString, QByteArray>;
        return Visit (*this,
                [] (const NetworkReplySuccess& success) { return Result_t { success.Data_ }; },
                [&errorContext] (const NetworkReplyError& error)
                {
                    qWarning () << errorContext << error;
                    return Result_t { error.ErrorText_ };
                });
    }

    QDebug operator<< (QDebug dbg, const NetworkResult& result)
    {
        QDebugStateSaver saver { dbg };

        dbg.noquote ();
        Visit (result,
                [&dbg] (const NetworkReplySuccess& success) { dbg << "success:" << success.Data_; },
                [&dbg] (const NetworkReplyError& error) { dbg << "error:" << error; });

        return dbg;
    }
}