/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
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**
** This file is part of Qt Creator.
**
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** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
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**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
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****************************************************************************/

#ifndef MERGETOOL_H
#define MERGETOOL_H

#include <QObject>
#include <QStringList>

QT_BEGIN_NAMESPACE
class QMessageBox;
QT_END_NAMESPACE

namespace Git {
namespace Internal {

class MergeToolProcess;
class GitClient;

class MergeTool : public QObject
{
    Q_OBJECT

    enum FileState {
        UnknownState,
        ModifiedState,
        CreatedState,
        DeletedState,
        SubmoduleState,
        SymbolicLinkState
    };

public:
    explicit MergeTool(QObject *parent = 0);
    ~MergeTool();
    bool start(const QString &workingDirectory, const QStringList &files = QStringList());

    enum MergeType {
        NormalMerge,
        SubmoduleMerge,
        DeletedMerge,
        SymbolicLinkMerge
    };

private slots:
    void readData();
    void done();

private:
    FileState waitAndReadStatus(QString &extraInfo);
    QString mergeTypeName();
    QString stateName(FileState state, const QString &extraInfo);
    void chooseAction();
    void addButton(QMessageBox *msgBox, const QString &text, char key);
    void continuePreviousGitCommand(const QString &msgBoxTitle, const QString &msgBoxText,
                                    const QString &buttonName, const QString &gitCommand);

    MergeToolProcess *m_process;
    MergeType m_mergeType;
    QString m_fileName;
    FileState m_localState;
    QString m_localInfo;
    FileState m_remoteState;
    QString m_remoteInfo;
    GitClient *m_gitClient;
    bool m_merging;
};

} // namespace Internal
} // namespace Git

#endif // MERGETOOL_H