/* Ricochet - https://ricochet.im/
 * Copyright (C) 2014, John Brooks <john.brooks@dereferenced.net>
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *    * Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *    * Redistributions in binary form must reproduce the above
 *      copyright notice, this list of conditions and the following disclaimer
 *      in the documentation and/or other materials provided with the
 *      distribution.
 *
 *    * Neither the names of the copyright owners nor the names of its
 *      contributors may be used to endorse or promote products derived from
 *      this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "PendingOperation.h"

PendingOperation::PendingOperation(QObject *parent)
    : QObject(parent), m_finished(false)
{
}

bool PendingOperation::isFinished() const
{
    return m_finished;
}

bool PendingOperation::isSuccess() const
{
    return m_finished && m_errorMessage.isNull();
}

bool PendingOperation::isError() const
{
    return m_finished && !m_errorMessage.isNull();
}

QString PendingOperation::errorMessage() const
{
    return m_errorMessage;
}

void PendingOperation::finishWithError(const QString &message)
{
    if (message.isEmpty())
        m_errorMessage = QStringLiteral("Unknown Error");
    m_errorMessage = message;

    if (!m_finished) {
        m_finished = true;
        emit finished();
        emit error(m_errorMessage);
    }
}

void PendingOperation::finishWithSuccess()
{
    Q_ASSERT(m_errorMessage.isNull());

    if (!m_finished) {
        m_finished = true;
        emit finished();
        if (isSuccess())
            emit success();
    }
}