/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
**
** GNU Lesser General Public License Usage
**
** 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 will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
** If you have questions regarding the use of this file, please contact
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**************************************************************************/

#ifndef GITPLUGIN_H
#define GITPLUGIN_H

#include "gitsettings.h"

#include "vcsbase/vcsbaseplugin.h"

#include <coreplugin/editormanager/ieditorfactory.h>
#include <extensionsystem/iplugin.h>

#include <QObject>
#include <QProcess>
#include <QStringList>
#include <QPointer>
#include <QPair>
#include <QVector>

QT_BEGIN_NAMESPACE
class QFile;
class QAction;
class QFileInfo;
QT_END_NAMESPACE

namespace Core {
class IEditorFactory;
class Command;
class Context;
class ActionManager;
class ActionContainer;
}
namespace Utils {
class ParameterAction;
}
namespace Locator {
    class CommandLocator;
}
namespace Git {
namespace Internal {

class GitVersionControl;
class GitClient;
class ChangeSelectionDialog;
class GitSubmitEditor;
class CommitData;
class StashDialog;
class BranchDialog;
class RemoteDialog;

typedef void (GitClient::*GitClientMemberFunc)(const QString &);

typedef QPair<QAction *, Core::Command* > ActionCommandPair;
typedef QPair<Utils::ParameterAction *, Core::Command* > ParameterActionCommandPair;

class GitPlugin : public VcsBase::VcsBasePlugin
{
    Q_OBJECT

public:
    GitPlugin();
    ~GitPlugin();

    static GitPlugin *instance();

    virtual bool initialize(const QStringList &arguments, QString *errorMessage);

    GitVersionControl *gitVersionControl() const;

    const GitSettings &settings() const;
    void setSettings(const GitSettings &s);

    GitClient *gitClient() const;

private slots:
    void diffCurrentFile();
    void diffCurrentProject();
    void diffRepository();
    void submitEditorDiff(const QStringList &unstaged, const QStringList &staged);
    void submitCurrentLog();
    void logFile();
    void blameFile();
    void logProject();
    void undoFileChanges(bool revertStaging = true);
    void undoUnstagedFileChanges();
    void undoRepositoryChanges();
    void stageFile();
    void unstageFile();
    void cleanProject();
    void cleanRepository();
    void applyCurrentFilePatch();
    void promptApplyPatch();
    void gitClientMemberFuncRepositoryAction();

    void showCommit();
    void startCommit();
    void startAmendCommit();
    void stash();
    void stashSnapshot();
    void branchList();
    void remoteList();
    void stashList();
    void fetch();
    void pull();
    void push();

protected:
    virtual void updateActions(VcsBase::VcsBasePlugin::ActionState);
    virtual bool submitEditorAboutToClose(VcsBase::VcsBaseSubmitEditor *submitEditor);

private:
    inline ParameterActionCommandPair
            createParameterAction(Core::ActionManager *am, Core::ActionContainer *ac,
                                  const QString &defaultText, const QString &parameterText,
                                  const Core::Id &id, const Core::Context &context, bool addToLocator);

    inline ParameterActionCommandPair
            createFileAction(Core::ActionManager *am, Core::ActionContainer *ac,
                             const QString &defaultText, const QString &parameterText,
                             const Core::Id &id, const Core::Context &context, bool addToLocator,
                             const char *pluginSlot);

    inline ParameterActionCommandPair
            createProjectAction(Core::ActionManager *am, Core::ActionContainer *ac,
                                const QString &defaultText, const QString &parameterText,
                                const Core::Id &id, const Core::Context &context, bool addToLocator);

    inline ParameterActionCommandPair
                createProjectAction(Core::ActionManager *am, Core::ActionContainer *ac,
                                    const QString &defaultText, const QString &parameterText,
                                    const Core::Id &id, const Core::Context &context, bool addToLocator,
                                    const char *pluginSlot);


    inline ActionCommandPair createRepositoryAction(Core::ActionManager *am, Core::ActionContainer *ac,
                                           const QString &text, const Core::Id &id,
                                           const Core::Context &context, bool addToLocator);
    inline ActionCommandPair createRepositoryAction(Core::ActionManager *am, Core::ActionContainer *ac,
                                           const QString &text, const Core::Id &id,
                                           const Core::Context &context,
                                           bool addToLocator, const char *pluginSlot);
    inline ActionCommandPair createRepositoryAction(Core::ActionManager *am, Core::ActionContainer *ac,
                                           const QString &text, const Core::Id &id,
                                           const Core::Context &context,
                                           bool addToLocator, GitClientMemberFunc);

    bool isCommitEditorOpen() const;
    Core::IEditor *openSubmitEditor(const QString &fileName, const CommitData &cd, bool amend);
    void cleanCommitMessageFile();
    void cleanRepository(const QString &directory);
    void applyPatch(const QString &workingDirectory, QString file = QString());
    void startCommit(bool amend);

    static GitPlugin *m_instance;
    Locator::CommandLocator *m_commandLocator;
    QAction *m_createRepositoryAction;

    QAction *m_showAction;

    QAction *m_submitCurrentAction;
    QAction *m_diffSelectedFilesAction;
    QAction *m_undoAction;
    QAction *m_redoAction;
    QAction *m_menuAction;

    QVector<Utils::ParameterAction *> m_fileActions;
    QVector<Utils::ParameterAction *> m_projectActions;
    QVector<QAction *> m_repositoryActions;
    Utils::ParameterAction *m_applyCurrentFilePatchAction;

    GitClient                   *m_gitClient;
    ChangeSelectionDialog       *m_changeSelectionDialog;
    QPointer<StashDialog>       m_stashDialog;
    QPointer<BranchDialog>      m_branchDialog;
    QPointer<RemoteDialog>      m_remoteDialog;
    QString                     m_submitRepository;
    QString                     m_commitMessageFileName;
    QString                     m_commitAmendSHA1;
    bool                        m_submitActionTriggered;

    GitSettings m_settings;
};

} // namespace Git
} // namespace Internal

#endif // GITPLUGIN_H
