//  This file is part of Friendiqa
//  https://github.com/lubuwest/Friendiqa
//  Copyright (C) 2020 Marco R. <thomasschmidt45@gmx.net>
//
//  This program is free software: you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation, either version 3 of the License, or
//  (at your option) any later version.
//
//  In addition, as a special exception, the copyright holders give
//  permission to link the code of portions of this program with the
//  OpenSSL library under certain conditions as described in each
//  individual source file, and distribute linked combinations including
//  the two.
//
//  You must obey the GNU General Public License in all respects for all
//  of the code used other than OpenSSL. If you modify file(s) with this
//  exception, you may extend this exception to your version of the
//  file(s), but you are not obligated to do so. If you do not wish to do
//  so, delete this exception statement from your version. If you delete
//  this exception statement from all source files in the program, then
//  also delete it here.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program.  If not, see <http://www.gnu.org/licenses/>.

#ifndef DOCUMENTHANDLER_H
#define DOCUMENTHANDLER_H

//#include <QFont>
#include <QObject>
#include <QTextCursor>
#include <QTextDocument>
#include <QQuickTextDocument>
//QT_BEGIN_NAMESPACE
//class QTextDocument;
//class QQuickTextDocument;
//QT_END_NAMESPACE

class DocumentHandler : public QObject{
    Q_OBJECT
    Q_PROPERTY(QQuickTextDocument *document READ document WRITE setDocument NOTIFY documentChanged)
    Q_PROPERTY(int cursorPosition READ cursorPosition WRITE setCursorPosition NOTIFY cursorPositionChanged)
    Q_PROPERTY(int selectionStart READ selectionStart WRITE setSelectionStart NOTIFY selectionStartChanged)
    Q_PROPERTY(int selectionEnd READ selectionEnd WRITE setSelectionEnd NOTIFY selectionEndChanged)
    Q_PROPERTY(QFont font READ font WRITE setFont NOTIFY fontChanged)
    Q_PROPERTY(bool bold READ bold WRITE setBold NOTIFY boldChanged)
    Q_PROPERTY(bool italic READ italic WRITE setItalic NOTIFY italicChanged)
    Q_PROPERTY(bool liststyle READ liststyle WRITE setListstyle NOTIFY liststyleChanged)
    Q_PROPERTY(bool codeblock READ codeblock WRITE setCodeblock NOTIFY codeblockChanged)
    Q_PROPERTY(bool modified READ modified WRITE setModified NOTIFY modifiedChanged)

public:
    explicit DocumentHandler(QObject *parent = nullptr);

    QQuickTextDocument *document() const;
    void setDocument(QQuickTextDocument *document);

    int cursorPosition() const;
    void setCursorPosition(int position);

    int selectionStart() const;
    void setSelectionStart(int position);

    int selectionEnd() const;
    void setSelectionEnd(int position);

    QFont font() const;
    void setFont(const QFont & font);

    bool bold() const;
    void setBold(bool bold);

    bool italic() const;
    void setItalic(bool italic);

    bool liststyle() const;
    void setListstyle(bool liststyle);

    bool modified() const;
    void setModified(bool m);

    bool codeblock() const;
    void setCodeblock(bool codeblock);

signals:
    void documentChanged();
    void cursorPositionChanged();
    void selectionStartChanged();
    void selectionEndChanged();
    void fontChanged();
    void boldChanged();
    void italicChanged();
    void liststyleChanged();
    void codeblockChanged();
    void error(const QString &message);
    void modifiedChanged();

private:
    QTextCursor textCursor() const;
    QTextDocument *textDocument() const;
    void mergeFormatOnWordOrSelection(const QTextCharFormat &format);
    QQuickTextDocument *m_document;
    int m_cursorPosition;
    int m_selectionStart;
    int m_selectionEnd;
};

#endif // DOCUMENTHANDLER_H