/****************************************************************************
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** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
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** accordance with the commercial license agreement provided with the
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** 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
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#pragma once

#include "assistenums.h"

#include <texteditor/texteditor_global.h>

#include <QString>
#include <QVector>

#include <utils/fileutils.h>

QT_BEGIN_NAMESPACE
class QTextDocument;
QT_END_NAMESPACE

namespace TextEditor {

class TEXTEDITOR_EXPORT AssistInterface
{
public:
    AssistInterface(QTextDocument *textDocument,
                    int position,
                    const Utils::FilePath &filePath,
                    AssistReason reason);
    virtual ~AssistInterface();

    virtual int position() const { return m_position; }
    virtual QChar characterAt(int position) const;
    virtual QString textAt(int position, int length) const;
    virtual Utils::FilePath filePath() const { return m_filePath; }
    virtual QTextDocument *textDocument() const { return m_textDocument; }
    virtual void prepareForAsyncUse();
    virtual void recreateTextDocument();
    virtual AssistReason reason() const;

private:
    QTextDocument *m_textDocument;
    bool m_isAsync;
    int m_position;
    Utils::FilePath m_filePath;
    AssistReason m_reason;
    QString m_text;
    QVector<int> m_userStates;
};

} // namespace TextEditor