/****************************************************************************
**
** Copyright (c) 2018 Artur Shepilko
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** 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
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/

#pragma once

#include "fossilsettings.h"

#include <vcsbase/vcsbaseclient.h>
#include <vcsbase/vcsbaseplugin.h>
#include <coreplugin/icontext.h>

QT_BEGIN_NAMESPACE
class QAction;
QT_END_NAMESPACE

namespace Core {
class ActionContainer;
class CommandLocator;
class Id;
} // namespace Core

namespace Utils { class ParameterAction; }

namespace Fossil {
namespace Internal {

class OptionsPage;
class FossilClient;
class FossilPluginPrivate;
class FossilEditorWidget;

class FossilPluginPrivate final : public VcsBase::VcsBasePluginPrivate
{
    Q_OBJECT

public:
    FossilPluginPrivate();

    static FossilPluginPrivate *instance();
    const FossilClient *client() const;

    // IVersionControl
    QString displayName() const final;
    Core::Id id() const final;

    bool isVcsFileOrDirectory(const Utils::FilePath &fileName) const final;

    bool managesDirectory(const QString &directory, QString *topLevel) const final;
    bool managesFile(const QString &workingDirectory, const QString &fileName) const final;

    bool isConfigured() const final;
    bool supportsOperation(Operation operation) const final;
    bool vcsOpen(const QString &fileName) final;
    bool vcsAdd(const QString &fileName) final;
    bool vcsDelete(const QString &filename) final;
    bool vcsMove(const QString &from, const QString &to) final;
    bool vcsCreateRepository(const QString &directory) final;

    bool vcsAnnotate(const QString &file, int line) final;

    Core::ShellCommand *createInitialCheckoutCommand(const QString &url,
                                                     const Utils::FilePath &baseDirectory,
                                                     const QString &localName,
                                                     const QStringList &extraArgs) final;

protected:
    void updateActions(VcsBase::VcsBasePluginPrivate::ActionState) override;
    bool submitEditorAboutToClose() override;

private:
    // File menu action slots
    void addCurrentFile();
    void deleteCurrentFile();
    void annotateCurrentFile();
    void diffCurrentFile();
    void logCurrentFile();
    void revertCurrentFile();
    void statusCurrentFile();

    // Directory menu action slots
    void diffRepository();
    void logRepository();
    void revertAll();
    void statusMulti();

    // Repository menu action slots
    void pull();
    void push();
    void update();
    void configureRepository();
    void commit();
    void showCommitWidget(const QList<VcsBase::VcsBaseClient::StatusItem> &status);
    void commitFromEditor() override;
    void diffFromEditorSelected(const QStringList &files);
    void createRepository();

    // Methods
    void createMenu(const Core::Context &context);
    void createFileActions(const Core::Context &context);
    void createDirectoryActions(const Core::Context &context);
    void createRepositoryActions(const Core::Context &context);

    // Variables
    FossilSettings m_fossilSettings;
    FossilClient *m_client = nullptr;

    Core::CommandLocator *m_commandLocator = nullptr;
    Core::ActionContainer *m_fossilContainer = nullptr;

    QList<QAction *> m_repositoryActionList;

    // Menu Items (file actions)
    Utils::ParameterAction *m_addAction = nullptr;
    Utils::ParameterAction *m_deleteAction = nullptr;
    Utils::ParameterAction *m_annotateFile = nullptr;
    Utils::ParameterAction *m_diffFile = nullptr;
    Utils::ParameterAction *m_logFile = nullptr;
    Utils::ParameterAction *m_renameFile = nullptr;
    Utils::ParameterAction *m_revertFile = nullptr;
    Utils::ParameterAction *m_statusFile = nullptr;

    QAction *m_createRepositoryAction = nullptr;

    // Submit editor actions
    QAction *m_menuAction = nullptr;

    QString m_submitRepository;
    bool m_submitActionTriggered = false;

    // To be connected to the VcsTask's success signal to emit the repository/
    // files changed signals according to the variant's type:
    // String -> repository, StringList -> files
    void changed(const QVariant &);
};

class FossilPlugin final : public ExtensionSystem::IPlugin
{
    Q_OBJECT
    Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QtCreatorPlugin" FILE "Fossil.json")

    ~FossilPlugin() final;

    bool initialize(const QStringList &arguments, QString *errorMessage) final;
    void extensionsInitialized() final;

#ifdef WITH_TESTS
private slots:
    void testDiffFileResolving_data();
    void testDiffFileResolving();
    void testLogResolving();
#endif
};

} // namespace Internal
} // namespace Fossil