/*
   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/>.
*/
#include "qetgraphicstablefactory.h"
#include "qetgraphicstableitem.h"
#include "nomenclaturemodel.h"
#include "elementquerywidget.h"
#include "diagram.h"
#include "qetgraphicsheaderitem.h"
#include "addtabledialog.h"
#include "qetutils.h"

#include <QDialog>

QetGraphicsTableFactory::QetGraphicsTableFactory()
{

}

/**
 * @brief QetGraphicsTableFactory::createAndAddNomenclature
 * Create a nomenclature table, open a dialog for ask to user the config of the table,
 * and add it to diagram @diagram;
 * @param diagram
 */
void QetGraphicsTableFactory::createAndAddNomenclature(Diagram *diagram)
{
	QScopedPointer<AddTableDialog> d(new AddTableDialog(diagram->views().first()));
	d->setWindowTitle(QObject::tr("Ajouter une nomenclature"));

	if (d->exec())
	{
		auto table_ = newTable(diagram, d.data());
		if (d->adjustTableToFolio()) {
			AdjustTableToFolio(table_);
		}


			//Add new table if needed and option checked
		if (d->addNewTableToNewDiagram() && table_->model()->rowCount() > table_->displayNRow())
		{
			auto already_displayed_rows = table_->displayNRow();
			auto project_ = diagram->project();
			auto actual_diagram = diagram;
			auto previous_table = table_;

			table_->setTableName(d->tableName() + QString(" 1"));
			int table_number = 2;
			while (already_displayed_rows < table_->model()->rowCount())
			{
					//Add a new diagram after the current one
				actual_diagram = project_->addNewDiagram(project_->folioIndex(actual_diagram)+1);
				table_ = newTable(actual_diagram, d.data(), previous_table);
				table_->setTableName(d->tableName() + QString(" %1").arg(table_number));
					//Adjust table
				if (d->adjustTableToFolio()) {
					AdjustTableToFolio(table_);
				}
					//Update some variable for the next loop
				already_displayed_rows += table_->displayNRow();
				previous_table = table_;
				++table_number;
			}
		}
	}
}

/**
 * @brief QetGraphicsTableFactory::newTable
 * Create a new table .
 * @param diagram : Diagram where we must add the new table.
 * @param dialog : dialog conf, it's used to setup the model.
 * @param previous_table : If you know that the new table will have a previous table and you already now the previous table,
 * set it now they will improve time needed for creating the new table by avoiding to create a new model.
 * @return the new table
 */
QetGraphicsTableItem *QetGraphicsTableFactory::newTable(Diagram *diagram, AddTableDialog *dialog, QetGraphicsTableItem *previous_table)
{
	auto table = new QetGraphicsTableItem();
	table->setTableName(dialog->tableName());

	if (!previous_table)
	{
		auto model = new NomenclatureModel(diagram->project(), diagram->project());
		model->query(dialog->queryStr());
		model->setData(model->index(0,0), int(dialog->tableAlignment()), Qt::TextAlignmentRole);
		model->setData(model->index(0,0), dialog->tableFont(), Qt::FontRole);
		model->setData(model->index(0,0), QETUtils::marginsToString(dialog->headerMargins()), Qt::UserRole+1);
		model->setHeaderData(0, Qt::Horizontal, int(dialog->headerAlignment()), Qt::TextAlignmentRole);
		model->setHeaderData(0, Qt::Horizontal, dialog->headerFont(), Qt::FontRole);
		model->setHeaderData(0, Qt::Horizontal, QETUtils::marginsToString(dialog->headerMargins()), Qt::UserRole+1);
		table->setModel(model);
	}
	else {
		table->setPreviousTable(previous_table);
	}

	diagram->addItem(table);
	table->setPos(50,50);

	return table;
}

/**
 * @brief QetGraphicsTableFactory::AdjustTableToFolio
 * Adjust @table to fit as better as possible to it's parent diagram.
 * @param table
 */
void QetGraphicsTableFactory::AdjustTableToFolio(QetGraphicsTableItem *table)
{
	auto drawable_rect = table->diagram()->border_and_titleblock.insideBorderRect();
	table->setPos(drawable_rect.topLeft().x() + 20, drawable_rect.topLeft().y() + 20 + table->headerItem()->rect().height());

	auto size_ = table->size();
	size_.setWidth(int(drawable_rect.width() - 40));
		//Size must be a multiple of 10, because the table adjust itself by step of 10.
	while (size_.width()%10) {
		--size_.rwidth();    }
	table->setSize(size_);

		//Calcul the maximum row to display to fit the nomenclature into diagram
	auto available_height = drawable_rect.height() - table->pos().y();
	auto min_row_height = table->minimumRowHeigth();
	table->setDisplayNRow(int(floor(available_height/min_row_height))); //Convert a double to int, but max_row_to_display is already rounded an integer so we assume everything is ok
}