/*
	Copyright 2006-2020 The QElectroTech Team
	This file is part of QElectroTech.

	QElectroTech 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 2 of the License, or
	(at your option) any later version.

	QElectroTech 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 QElectroTech. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PROJECTDBMODEL_H
#define PROJECTDBMODEL_H

#include <QAbstractTableModel>
#include <QPointer>
#include <QDomElement>

class QETProject;

/**
 * @brief The ProjectDBModel class
 * This model is intended to be use with the @class projectDataBase
 * and is designed to be displayed by the @class QetGraphicsTableItem (but can be use by other view class since it inherit from QAbstractTableModel).
 * This class should be sufficient to display the content of the project data base from a query set by the method void ProjectDBModel::setQuery(const QString &query).
 * The indentifier method is used by widget editor to retrieve the good widget for edit the query. By defaut identifer return the string 'unknow'.
 * You should use setIdentfier method to set your custom identifier.
 * At the time this sentence is written, there is two identifier :
 * nomenclature
 * summary
 */
class ProjectDBModel : public QAbstractTableModel
{
    Q_OBJECT

    public:
        explicit ProjectDBModel(QETProject *project, QObject *parent = nullptr);
        explicit ProjectDBModel (const ProjectDBModel &other_model);

        int rowCount(const QModelIndex &parent = QModelIndex()) const override;
        int columnCount(const QModelIndex &parent = QModelIndex()) const override;
        bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role = Qt::EditRole) override;
        QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
        bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override;
        QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
        void setQuery(const QString &setQuery);
        QString queryString() const;
        QETProject *project() const;

        QDomElement toXml(QDomDocument &document) const;
        void fromXml(const QDomElement &element);
		void setIdentifier(const QString &identifier);
		QString identifier() const {return m_identifier;}
		static QString xmlTagName() {return QString("project_data_base_model");}

    private:
        void dataBaseUpdated();
        void setHeaderString();
        void fillValue();

    private:
        QPointer<QETProject> m_project;
        QString m_query;
        QVector<QStringList> m_record;
        QHash<int, QHash<int, QVariant>> m_header_data; //First int = section, second int = Qt::role, QVariant = value
        QHash<int, QVariant> m_index_0_0_data;
		QString m_identifier = "unknow";
};

#endif // PROJECTDBMODEL_H