/*
 *  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.
 *
 */

#ifndef __CERT_CONFIG__
#define __CERT_CONFIG__

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

namespace CERT
{

    class ConfigItem
    {
    public:
        typedef std::map< std::string, std::vector<std::string> > PropertyType;

    public:
        ConfigItem();
        ~ConfigItem();

        std::string getPluginID() const;
        void setPluginID( const std::string &_id );

        std::string getName() const;
        void setName( const std::string &_name );

        std::string getInternalName() const;
        void setInternalName( const std::string &_name );

        std::string getPluginType() const;
        void setPluginType( const std::string &_type );

        bool getEnabled() const;
        void setEnabled( bool _enabled );

        bool getDisplay() const;
        void setDisplay( bool _display );

        PropertyType getProperties() const { return properties; }
        std::vector<std::string> getValueForKey( const std::string &key );
        void setValueForKey( const std::string &value, const std::string &key );
        void setValueForKey( const std::vector<std::string> &value, const std::string &key );

        bool hasIntValueForKey( const std::string &key );
        int getIntValueForKey( const std::string &key );
        bool hasFloatValueForKey( const std::string &key );
        int getFloatValueForKey( const std::string &key );

        friend std::ostream& operator<<( std::ostream &os, const CERT::ConfigItem &item );

    private:
        std::string id;
        std::string name;
        std::string internalName;
        std::string type;
        bool enabled;
        bool display;

        PropertyType properties;

    // Separate methods and data members for any "map" type properties
    public:
        PropertyType getMapForKey( const std::string &key );
        void setValueForKey( const PropertyType &value, const std::string &key );
    private:
        std::map< std::string, PropertyType > mapProperties;
    };

    /*** A class for parsing config files for CERT.
     * Have a couple of default places to look, but also accept a path (more than one?).
     */
    class Config
    {
    public:
        Config( const std::string &_path = std::string("") );
        ~Config();

        std::vector<ConfigItem *> getItems() const;
        std::vector<ConfigItem *> itemsOfType( const std::string &type ) const;

        void addItem( ConfigItem *item );

        const ConfigItem &getGlobalItem() const { return global; }
        ConfigItem &getGlobalItem() { return global; }

        class exception : public std::runtime_error
        {
            public:
            exception( const std::string &msg ) : std::runtime_error(msg) { }
        };

        friend std::ostream& operator<<( std::ostream &os, const CERT::Config &config );
    private:
        std::vector<ConfigItem *> items;
        std::string path;
        ConfigItem global; // for global settings
    };

}

#endif