/*
 *  Config
 *
 *  Author: Andrew Salamon
 *  Date: Tue Feb 27, 2008
 *
 *  Copyright (c) 2008 Machine Perception Laboratory
 *  University of California San Diego.
 *
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
 *    3. The name of the author may not be used to endorse or promote products derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include "CERT_Config.h"
#include "ConfigParser_XML.h"

#include <sstream>

namespace CERT
{

Config::Config( const std::string &_path ) : path(_path)
{
    // figure out which kind of config file it is and invoke the correct parser.
    if( path.length() > 0 )
    {
        try {
            ConfigParser_XML parser( this, path );
        }
        catch ( const ConfigParser_XML::exception &error )
        {
            throw exception( error.what() );
        }
    }
    global.setName( "global" );
}

Config::~Config()
{
    // make sure to delete all of the ConfigItems
    for( unsigned int i = 0; i < items.size(); ++i )
        delete items[i];
}

std::vector<ConfigItem *>
Config::getItems() const
{
    return items;
}

std::vector<ConfigItem *>
Config::itemsOfType( const std::string &type ) const
{
    // walk through, pulling out just 'type' plugins.
    return std::vector<ConfigItem *>();
}

void
Config::addItem( ConfigItem *item )
{
    items.push_back( item );
}

//std::vector<ConfigItem *> items;
//std::string path;

ConfigItem::ConfigItem() : enabled(true), display(true)
{
}

ConfigItem::~ConfigItem()
{
}


std::string
ConfigItem::getPluginID() const
{
    return id;
}

void
ConfigItem::setPluginID( const std::string &_id )
{
    id = _id;
}


std::string
ConfigItem::getName() const
{
    return name;
}

void
ConfigItem::setName( const std::string &_name )
{
    name = _name;
}


std::string
ConfigItem::getInternalName() const
{
    return internalName;
}

void
ConfigItem::setInternalName( const std::string &_name )
{
    internalName = _name;
}


std::string
ConfigItem::getPluginType() const
{
    return type;
}

void
ConfigItem::setPluginType( const std::string &_type )
{
    type = _type;
}


bool
ConfigItem::getEnabled() const
{
    return enabled;
}

void
ConfigItem::setEnabled( bool _enabled )
{
    enabled = _enabled;
}


bool
ConfigItem::getDisplay() const
{
    return display;
}

void
ConfigItem::setDisplay( bool _display )
{
    display = _display;
}


std::vector<std::string>
ConfigItem::getValueForKey( const std::string &key )
{
    if( properties.find( key ) == properties.end() )
        return std::vector<std::string>();

    return properties[ key ];
}

void
ConfigItem::setValueForKey( const std::string &value, const std::string &key )
{
    std::vector<std::string> vec = properties[key];
    vec.push_back(value);
    properties[ key ] = vec;
}

void
ConfigItem::setValueForKey( const std::vector<std::string> &value, const std::string &key )
{
    properties[ key ] = value;
}

ConfigItem::PropertyType
ConfigItem::getMapForKey( const std::string &key )
{
    if( mapProperties.find( key ) == mapProperties.end() )
        return ConfigItem::PropertyType();

    return mapProperties[ key ];
}

void
ConfigItem::setValueForKey( const PropertyType &value, const std::string &key )
{
    mapProperties[ key ] = value;
}

bool
ConfigItem::hasIntValueForKey( const std::string &key )
{
    std::vector<std::string> intstr = getValueForKey( key );
    if( 1 == intstr.size() )
    {
        std::istringstream istr( intstr[0] );
        int test;
        if( istr >> test )
        {
            return true;
        }
    }
    return false;
}

int
ConfigItem::getIntValueForKey( const std::string &key )
{
    std::vector<std::string> intstr = getValueForKey( key );
    int value = 0;
    if( 1 == intstr.size() )
    {
        std::istringstream istr( intstr[0] );
        istr >> value;
    }
    return value;
}

bool
ConfigItem::hasFloatValueForKey( const std::string &key )
{
    std::vector<std::string> intstr = getValueForKey( key );
    if( 1 == intstr.size() )
    {
        std::istringstream istr( intstr[0] );
        float test;
        if( istr >> test )
        {
            return true;
        }
    }
    return false;
}

int
ConfigItem::getFloatValueForKey( const std::string &key )
{
    std::vector<std::string> intstr = getValueForKey( key );
    float value = 0.0;
    if( 1 == intstr.size() )
    {
        std::istringstream istr( intstr[0] );
        istr >> value;
    }
    return value;
}

static const std::string spacing( "    " );
static const std::string spacing2( spacing + spacing );
static const std::string spacing3( spacing2 + spacing );

std::ostream& operator<<( std::ostream &os, CERT::ConfigItem::PropertyType &properties );

std::ostream& operator<<( std::ostream &os, const CERT::Config &config )
{
    os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>" << std::endl;
    os << "<config version=\"1\">" << std::endl;

    const CERT::ConfigItem &global = config.getGlobalItem();
    CERT::ConfigItem::PropertyType properties = global.getProperties();
    if( properties.size() > 0 )
    {
        os << spacing << "<global>" << std::endl;
        os << properties;
        os << spacing << "</global>" << std::endl;

    }
    std::vector< CERT::ConfigItem * > items = config.getItems();
    for( unsigned int i = 0; i < items.size(); ++i )
        os << *(items[i]);

    os << "</config>" << std::endl;
    return os;
}

std::ostream& operator<<( std::ostream &os, CERT::ConfigItem::PropertyType &properties )
{
    for( CERT::ConfigItem::PropertyType::iterator iter = properties.begin(), lastIter = properties.end();
         iter != lastIter;
         ++iter )
    {
        if( iter->first == "comment" )
        {
            for( std::vector<std::string>::iterator itemIter = iter->second.begin(), lastItemIter = iter->second.end();
                 itemIter != lastItemIter;
                 ++itemIter )
            {
                os << "<!--" << *itemIter << "-->" << std::endl;
            }
        }
        else
        {
            os << spacing2 << "<" << iter->first << " type=\"";
            if( iter->second.size() > 1 )
            {
                os << "array\">" << std::endl;

                for( std::vector<std::string>::iterator itemIter = iter->second.begin(), lastItemIter = iter->second.end();
                     itemIter != lastItemIter;
                     ++itemIter )
                {
                    os << spacing3;
                    os << "<item>" << *itemIter << "</item>" << std::endl;
                }
                os << spacing2 << "</" << iter->first << ">" << std::endl;
            }
            else
            {
                os << "string\">" << iter->second[0] << "</" << iter->first << ">" << std::endl;
            }
        }
    }

    return os;
}

std::ostream& operator<<( std::ostream &os, const CERT::ConfigItem &item )
{
    os << spacing << "<plugin>" << std::endl;

    os << spacing2 << "<id>" << item.getPluginID() << "</id>" << std::endl;
    os << spacing2 << "<name>" << item.getName() << "</name>" << std::endl;
    os << spacing2 << "<iname>" << item.getInternalName() << "</iname>" << std::endl;
    os << spacing2 << "<type>" << item.getPluginType() << "</type>" << std::endl;
    os << spacing2 << (item.getEnabled()?"<enabled />":"<disabled />") << std::endl;
    os << spacing2 << (item.getDisplay()?"<display />":"<nodisplay />") << std::endl;

    CERT::ConfigItem::PropertyType properties = item.getProperties();
    os << properties;

    os << spacing << "</plugin>" << std::endl;

    return os;
}

} // End CERT namespace