/* --------------------------------------------------------------------------

   libmusicbrainz5 - Client library to access MusicBrainz

   Copyright (C) 2012 Andrew Hawkins

   This file is part of libmusicbrainz5.

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

   libmusicbrainz5 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
   Lesser General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this library.  If not, see <http://www.gnu.org/licenses/>.

     $Id$

----------------------------------------------------------------------------*/

#include "config.h"
#include "musicbrainz5/defines.h"

#include "musicbrainz5/Entity.h"

#include "musicbrainz5/RelationList.h"
#include "musicbrainz5/RelationListList.h"

class MusicBrainz5::CEntityPrivate
{
	public:
		CEntityPrivate()
		{
		}

		std::map<std::string,std::string> m_ExtAttributes;
		std::map<std::string,std::string> m_ExtElements;
};

MusicBrainz5::CEntity::CEntity()
:	m_d(new CEntityPrivate)
{
}

MusicBrainz5::CEntity::CEntity(const CEntity& Other)
:	m_d(new CEntityPrivate)
{
	*this=Other;
}

MusicBrainz5::CEntity& MusicBrainz5::CEntity::operator =(const CEntity& Other)
{
	if (this!=&Other)
	{
		Cleanup();

		m_d->m_ExtAttributes=Other.m_d->m_ExtAttributes;
		m_d->m_ExtElements=Other.m_d->m_ExtElements;
	}

	return *this;
}

MusicBrainz5::CEntity::~CEntity()
{
	Cleanup();

	delete m_d;
}

void MusicBrainz5::CEntity::Cleanup()
{
}

void MusicBrainz5::CEntity::Parse(const XMLNode& Node)
{
	if (!Node.isEmpty())
	{
		for (XMLAttribute Attr = Node.getAttribute();
		    !Attr.isEmpty();
		    Attr = Attr.next())
		{
			std::string Name=Attr.name();
			std::string Value=Attr.value();

			if ("ext:"==Name.substr(0,4))
				m_d->m_ExtAttributes[Name.substr(4)]=Value;
			else
				ParseAttribute(Name,Value);
		}

		//std::cout << "Node: " << std::endl << Node.createXMLString(true) << std::endl;

		for (XMLNode ChildNode = Node.getChildNode();
		     !ChildNode.isEmpty();
		     ChildNode = ChildNode.next())
		{
			std::string Name=ChildNode.getName();
			std::string Value;
			if (ChildNode.getText())
				Value=ChildNode.getText();

			if ("ext:"==Name.substr(0,4))
				m_d->m_ExtElements[Name.substr(4)]=Value;
			else
				ParseElement(ChildNode);
		}
	}
}

std::map<std::string,std::string> MusicBrainz5::CEntity::ExtAttributes() const
{
	return m_d->m_ExtAttributes;
}

std::map<std::string,std::string> MusicBrainz5::CEntity::ExtElements() const
{
	return m_d->m_ExtElements;
}

void MusicBrainz5::CEntity::ProcessRelationList(const XMLNode& Node, CRelationListList* & RetVal)
{
	if (0==RetVal)
		RetVal=new CRelationListList;

	CRelationList *RelationList=0;
	ProcessItem(Node,RelationList);
	RetVal->Add(RelationList);
	delete RelationList;
}

std::ostream& MusicBrainz5::CEntity::Serialise(std::ostream& os) const
{
	if (!ExtAttributes().empty())
	{
		os << "Ext attrs: " << std::endl;
		std::map<std::string,std::string> ExtAttrs=ExtAttributes();
		std::map<std::string,std::string>::const_iterator ThisExtAttr=ExtAttrs.begin();
		while (ThisExtAttr!=ExtAttrs.end())
		{
			os << (*ThisExtAttr).first << " = " << (*ThisExtAttr).second << std::endl;

			++ThisExtAttr;
		}
	}

	if (!ExtElements().empty())
	{
		os << "Ext elements: " << std::endl;
		std::map<std::string,std::string> ExtElems=ExtElements();
		std::map<std::string,std::string>::const_iterator ThisExtElement=ExtElems.begin();
		while (ThisExtElement!=ExtElems.end())
		{
			os << (*ThisExtElement).first << " = " << (*ThisExtElement).second << std::endl;

			++ThisExtElement;
		}
	}

	return os;
}

std::ostream& operator << (std::ostream& os, const MusicBrainz5::CEntity& Entity)
{
	return Entity.Serialise(os);
}