/*
 * Parts Copyright (C) 2005-2008 by Pieter Palmers
 *
 * This file is part of FFADO
 * FFADO = Free FireWire (pro-)audio drivers for Linux
 *
 * FFADO is based upon FreeBoB.
 *
 * This program 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) version 3 of the License.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

/*
 *
 *  D-Bus++ - C++ bindings for D-Bus
 *
 *  Copyright (C) 2005-2007  Paolo Durante <shackan@gmail.com>
 *
 *
 *  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.
 *
 *  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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */


#ifndef __FFADO_UTIL_SERIALIZE_EXPAT_XML_H__
#define __FFADO_UTIL_SERIALIZE_EXPAT_XML_H__

#include <exception>
#include <string>
#include <vector>
#include <map>
#include <iostream>
#include <sstream>

#include "debugmodule/debugmodule.h"

namespace Util {

namespace Xml {

class Error : public std::exception
{
public:

    Error( const char* error, int line, int column );

    ~Error() throw()
    {}

    const char* what() const throw()
    {
        return _error.c_str();
    }

private:

    std::string _error;
};

class Node;

class Nodes : public std::vector<Node*>
{
public:

    Nodes operator[]( const std::string& key );

    Nodes select( const std::string& attr, const std::string& value );
};

class Node
{
public:

    typedef std::map<std::string, std::string> Attributes;

    typedef std::vector<Node> Children;

    std::string name;
    std::string cdata;
    Children children;

    Node( std::string& n, Attributes& a )
    : name(n), _attrs(a)
    {}

    Node( const char* n, const char** a = NULL );

    Nodes operator[]( const std::string& key );

    std::string get( const std::string& attribute );

    void set( const std::string& attribute, std::string value );

    std::string to_xml() const;

    Node& add( Node child )
    {
        children.push_back(child);
        return children.back();
    }

    Nodes find(const std::string &path);

    bool has_child_text() {return cdata.size() !=0;};
    std::string get_child_text() {return cdata;};
    void set_child_text(std::string t) {cdata=t;};

private:

    void _raw_xml( std::string& xml, int& depth ) const;

    Attributes _attrs;
    DECLARE_DEBUG_MODULE;
};

class Document
{
public:

    struct Expat;

    Node* root;

    Document();

    Document( const std::string& xml );

    ~Document();

    void from_xml( const std::string& xml );

    std::string to_xml() const;

    void create_root_node( const char *);
    Xml::Node* get_root_node() {return root;};

    void write_to_file_formatted( const std::string );
    void load_from_file( const std::string );

private:

    int _depth;
    DECLARE_DEBUG_MODULE;
};

} /* namespace Xml */

} /* namespace Util */

std::istream& operator >> ( std::istream&, Util::Xml::Document& );
std::ostream& operator << ( std::ostream&, Util::Xml::Document& );

#endif//__FFADO_UTIL_SERIALIZE_EXPAT_XML_H__
