// Cyphesis Online RPG Server and AI Engine
// Copyright (C) 2005 Alistair Riddoch
//
// 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) any later version.
// 
// 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, write to the Free Software Foundation,
// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA


#include "StatisticsProperty.h"

#include "rules/simulation/ArithmeticScript.h"

#include "common/log.h"
#include "rules/simulation/BaseWorld.h"

static const bool debug_flag = false;

using Atlas::Message::Element;
using Atlas::Message::MapType;
using Atlas::Message::ListType;
using Atlas::Message::FloatType;

/// \brief Explicit copy constructor
///
/// This is required because although the value the data is copied, the
/// script must not be. The script is re-instantiated when apply is called
/// on the enity instance.
StatisticsProperty::StatisticsProperty(const StatisticsProperty & other) :
    PropertyBase(other),
    m_data(other.m_data),
    m_script(nullptr)
{
}

/// \brief StatisticsProperty constructor
///
/// @param data variable that holds the Property value
/// @param flags flags to indicate how this property is stored
StatisticsProperty::StatisticsProperty() : m_script(nullptr)
{
}

StatisticsProperty::~StatisticsProperty()
{
    delete m_script;
}

void StatisticsProperty::install(LocatedEntity * ent, const std::string & name)
{
}

void StatisticsProperty::apply(LocatedEntity * ent)
{
    if (m_script == nullptr) {
        LocatedEntity * instance = nullptr;
        if (hasFlags(flag_class)) {
        } else {
            instance = ent;
        }

        m_script = BaseWorld::instance().newArithmetic("statistics", instance);
        if (m_script == nullptr) {
            return;
        }
    }
    std::map<std::string, double>::const_iterator I = m_data.begin();
    std::map<std::string, double>::const_iterator Iend = m_data.end();
    for (; I != Iend; ++I) {
        m_script->set(I->first, static_cast<const float&>(I->second));
    }
}

int StatisticsProperty::get(Element & val) const
{
    val = MapType();
    MapType & val_map = val.Map();

    auto I = m_data.begin();
    auto Iend = m_data.end();
    for (; I != Iend; ++I) {
        val_map[I->first] = I->second;
    }
    return 0;
}

void StatisticsProperty::set(const Element & ent)
{
    if (!ent.isMap()) {
        log(WARNING, "Non map statistics");
        return;
    }
    const MapType & smap = ent.Map();
    auto I = smap.begin();
    auto Iend = smap.end();
    for (; I != Iend; ++I) {
        if (!I->second.isNum()) {
            log(WARNING, "Non numeric stat");
            continue;
        }
        m_data[I->first] = I->second.asNum();
    }
}

StatisticsProperty * StatisticsProperty::copy() const
{
    return new StatisticsProperty(*this);
}