/***************************************************************************
 *   This file is part of the Lime Report project                          *
 *   Copyright (C) 2021 by Alexander Arin                                  *
 *   arin_a@bk.ru                                                          *
 *                                                                         *
 **                   GNU General Public License Usage                    **
 *                                                                         *
 *   This library 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.                                   *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
 *                                                                         *
 **                  GNU Lesser General Public License                    **
 *                                                                         *
 *   This library is free software: you can redistribute it and/or modify  *
 *   it under the terms of the GNU Lesser General Public License as        *
 *   published by the Free Software Foundation, either version 3 of the    *
 *   License, or (at your option) any later version.                       *
 *   You should have received a copy of the GNU Lesser General Public      *
 *   License along with this library.                                      *
 *   If not, see <http://www.gnu.org/licenses/>.                           *
 *                                                                         *
 *   This library 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.                          *
 ****************************************************************************/
#ifndef LROBJECTPROPITEM_H
#define LROBJECTPROPITEM_H

#include "lrattribsabstractfactory.h"
#include "lrsingleton.h"

#include <QAbstractItemModel>
#include <QDebug>
#include <QMetaProperty>
#include <QModelIndex>
#include <QString>
#include <QVariant>

namespace LimeReport {

class ObjectPropItem: public QObject {
    Q_OBJECT

public:
    typedef QList<QObject*> ObjectsList;
    ObjectPropItem() { invalidate(); }
    ObjectPropItem(QObject* object, ObjectsList* objects, const QString& propertyName,
                   const QString& displayName, const QVariant& propertyValue,
                   ObjectPropItem* parent, bool readonly = true);
    ObjectPropItem(QObject* object, ObjectsList* objects, const QString& propertyName,
                   const QString& displayName, ObjectPropItem* parent, bool isClass = false);
    ~ObjectPropItem();

    virtual QVariant propertyValue() const;
    virtual void setPropertyValue(QVariant value);
    virtual QString propertyName() const { return m_name; }
    virtual QString displayName() const;
    virtual QString displayValue() const;
    virtual QIcon iconValue() const { return QIcon(); }
    virtual bool isHaveChildren() const { return m_childItems.count() > 0; }
    virtual bool isHaveValue() const { return m_haveValue; }
    virtual bool isValueReadonly() const { return m_readonly; }
    void setValueReadOnly(bool value) { m_readonly = value; }
    virtual bool isValueModified() const { return false; }
    virtual QWidget* createProperyEditor(QWidget* /*parent*/) const { return 0; }
    virtual void setPropertyEditorData(QWidget*, const QModelIndex&) const { }
    virtual void setModelData(QWidget* /*editor*/, QAbstractItemModel* /*model*/,
                              const QModelIndex& /*index*/)
    {
    }
    virtual void updateEditorGeometry(QWidget* editor, const QStyleOptionViewItem& option,
                                      const QModelIndex& /*index*/) const;
    virtual void updatePropertyValue();
    virtual bool paint(QPainter*, const StyleOptionViewItem&, const QModelIndex&);

    ObjectPropItem* parent() const { return m_parent; }
    QObject* object() const { return m_object; }
    ObjectsList* objects() { return m_objects; }
    ObjectPropItem* child(int row);
    QList<ObjectPropItem*> children() { return m_childItems; }
    ObjectPropItem* findChild(const QString& propertyName);
    ObjectPropItem* findPropertyItem(const QString& propertyName);
    int childCount();
    void appendItem(ObjectPropItem* item);
    void sortItem();
    int row();
    bool isValid() { return m_valid; }
    int colorIndex() { return m_colorIndex; }
    void setColorIndex(int propertyValue);
    void setModel(QAbstractItemModel* model) { m_model = model; }
    QAbstractItemModel* model() { return m_model; }
    void setModelIndex(const QModelIndex& index) { m_index = index; }
    QModelIndex modelIndex() { return m_index; }
    bool isClass() { return m_isClass; }
    bool isTranslateProperty() const;
    void setTranslateProperty(bool translatePropperty);
#ifdef INSPECT_BASEDESIGN
private slots:
    void slotPropertyChanged(const QString& name, QVariant, QVariant newValue);
    void slotPropertyObjectName(const QString& oldValue, const QString& newValue);
#endif
private:
    bool m_valid;
    void invalidate()
    {
        m_object = 0;
        m_objects = 0;
        m_valid = false;
        m_name = "";
        m_value = QVariant();
        m_isClass = false;
    }

protected:
    void beginChangeValue() { m_changingValue = true; }
    void endChangeValue() { m_changingValue = false; }
    bool isValueChanging() { return m_changingValue; }
    void setValueToObject(const QString& propertyName, QVariant propertyValue);

private:
    QObject* m_object;
    ObjectsList* m_objects;
    QString m_name;
    QString m_displayName;
    QVariant m_value;
    bool m_haveValue;
    ObjectPropItem* m_parent;
    QList<ObjectPropItem*> m_childItems;
    QList<ObjectPropItem*> m_globalPropList;
    int m_colorIndex;
    bool m_readonly;
    QAbstractItemModel* m_model;
    QModelIndex m_index;
    bool m_isClass;
    bool m_changingValue;
    bool m_translatePropperty;
};

typedef QPair<QString, QString> APropIdent;
typedef ObjectPropItem* (*CreatePropItem)(QObject* object, ObjectPropItem::ObjectsList* objects,
                                          const QString& name, const QString& displayName,
                                          const QVariant& value, ObjectPropItem* parent,
                                          bool readonly);

class ObjectPropFactory:
    public AttribsAbstractFactory<LimeReport::ObjectPropItem, APropIdent, CreatePropItem, QString> {
private:
    friend class Singleton<ObjectPropFactory>;

private:
    ObjectPropFactory() { }
    ~ObjectPropFactory() { }
    ObjectPropFactory(const ObjectPropFactory&) { }
    ObjectPropFactory& operator=(const ObjectPropFactory&) { return *this; }
};

} // namespace LimeReport

Q_DECLARE_METATYPE(LimeReport::ObjectPropItem*)

#endif // LROBJECTPROPITEM_H