/** \file
 * \brief Implementation of DOT string conversion functions.
 *
 * \author Łukasz Hanuszczak
 *
 * \par License:
 * This file is part of the Open Graph Drawing Framework (OGDF).
 *
 * \par
 * Copyright (C)<br>
 * See README.md in the OGDF root directory for details.
 *
 * \par
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * Version 2 or 3 as published by the Free Software Foundation;
 * see the file LICENSE.txt included in the packaging of this file
 * for details.
 *
 * \par
 * 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.
 *
 * \par
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, see
 * http://www.gnu.org/copyleft/gpl.html
 */

#include <ogdf/basic/Graph.h>
#include <ogdf/basic/basic.h>
#include <ogdf/basic/graphics.h>
#include <ogdf/fileformats/DOT.h>
#include <ogdf/fileformats/Utils.h>

#include <string>

namespace ogdf {

namespace dot {


std::string toString(const Attribute& attr) {
	switch (attr) {
	case Attribute::Id:
		return "id";
	case Attribute::Label:
		return "label";
	case Attribute::Template:
		return "comment";
	case Attribute::Width:
		return "width";
	case Attribute::Height:
		return "height";
	case Attribute::Shape:
		return "shape";
	case Attribute::Position:
		return "pos";
	case Attribute::LabelPosition:
		return "labelpos";
	case Attribute::Stroke:
		return "color";
	case Attribute::StrokeType:
		return "stroketype";
	case Attribute::Fill:
		return "fillcolor";
	case Attribute::Weight:
		return "weight";
	case Attribute::Arrow:
		return "arrow";
	case Attribute::StrokeWidth:
		return "strokewidth";
	case Attribute::FillPattern:
		return "fillpattern";
	case Attribute::FillBackground:
		return "fillbgcolor";
	case Attribute::Type:
		return "type";
	case Attribute::Dir:
		return "dir";
	case Attribute::SubGraphs:
		return "available_for";
	default:
		return "comment";
	}
}

std::string toString(const Shape& shape) {
	switch (shape) {
	case Shape::Rect:
		return "rect";
	case Shape::RoundedRect:
		return "roundedrect";
	case Shape::Ellipse:
		return "ellipse";
	case Shape::Triangle:
		return "triangle";
	case Shape::Pentagon:
		return "pentagon";
	case Shape::Hexagon:
		return "hexagon";
	case Shape::Octagon:
		return "octagon";
	case Shape::Rhomb:
		return "diamond";
	case Shape::Trapeze:
		return "trapezium";
	case Shape::Parallelogram:
		return "parallelogram";
	case Shape::InvTriangle:
		return "invtriangle";
	case Shape::InvTrapeze:
		return "invtrapezium";
	case Shape::InvParallelogram:
		return "invparallelogram";
	case Shape::Image:
		return "image";
	}
	OGDF_ASSERT(false);
	return "UNKNOWN";
}

std::string toString(const EdgeArrow& arrow) {
	switch (arrow) {
	case EdgeArrow::None:
		return "none";
	case EdgeArrow::Last:
		return "forward";
	case EdgeArrow::First:
		return "back";
	case EdgeArrow::Both:
		return "both";
	case EdgeArrow::Undefined:
		return "none"; // Not supported.
	}
	OGDF_ASSERT(false);
	return "UNKNOWN";
}

std::string toString(const Graph::EdgeType& type) {
	switch (type) {
	case Graph::EdgeType::association:
		return "association";
	case Graph::EdgeType::generalization:
		return "generalization";
	case Graph::EdgeType::dependency:
		return "dependency";
	}
	OGDF_ASSERT(false);
	return "UNKNOWN";
}

Attribute toAttribute(const std::string& str) {
	return toEnum(str, toString, static_cast<Attribute>(0), Attribute::Unknown, Attribute::Unknown);
}

Shape toShape(const std::string& str) {
	return toEnum(str, toString, Shape::Rect, Shape::Image, Shape::Rect);
}

EdgeArrow toArrow(const std::string& str) {
	return toEnum(str, toString, EdgeArrow::None, EdgeArrow::Undefined, EdgeArrow::Undefined);
}

Graph::EdgeType toEdgeType(const std::string& str) {
	return toEnum(str, toString, Graph::EdgeType::association, Graph::EdgeType::dependency,
			Graph::EdgeType::association);
}

}

}
