/**

GDevelop - LinkedObjects Extension
Copyright (c) 2011-2014 Florian Rival (Florian.Rival@gmail.com)
This project is released under the MIT License.
*/

#include "LinkedObjectsTools.h"
#include <iostream>
#include <string>
#include <boost/weak_ptr.hpp>
#include <boost/shared_ptr.hpp>
#include "GDCpp/RuntimeObject.h"
#include "GDCpp/RuntimeScene.h"
#include "ObjectsLinksManager.h"

using namespace std;

namespace GDpriv
{
namespace LinkedObjects
{

std::map < RuntimeScene* , ObjectsLinksManager > ObjectsLinksManager::managers;

bool GD_EXTENSION_API PickObjectsLinkedTo(RuntimeScene & scene,
                                          std::map <std::string, std::vector<RuntimeObject*> *> pickedObjectsLists,
                                          RuntimeObject * object)
{
    if (!object) return false;
    bool isTrue = false;

    //Create a boolean for each object
    std::vector < std::vector<bool> > pickedList;
    for(std::map <std::string, std::vector<RuntimeObject*> *>::const_iterator it = pickedObjectsLists.begin();
        it != pickedObjectsLists.end();++it)
    {
        std::vector<bool> arr;
        arr.assign(it->second->size(), false);
        pickedList.push_back(arr);
    }

    //Pick objects which are linked to the object
    unsigned int i = 0;
    for(std::map <std::string, std::vector<RuntimeObject*> *>::const_iterator it = pickedObjectsLists.begin();
        it != pickedObjectsLists.end();++it, ++i)
    {
        if ( !it->second ) continue;
        const std::vector<RuntimeObject*> & arr1 = *it->second;
        std::vector<RuntimeObject*> linkedObjects = ObjectsLinksManager::managers[&scene].GetObjectsLinkedWith(object);

        for(unsigned int k = 0;k<arr1.size();++k)
        {
            if ( std::find(linkedObjects.begin(), linkedObjects.end(), arr1[k]) != linkedObjects.end()) {
                pickedList[i][k] = true;
                isTrue = true;
            }
        }
    }

    //Trim not picked objects from arrays.
    i = 0;
    for(std::map <std::string, std::vector<RuntimeObject*> *>::const_iterator it = pickedObjectsLists.begin();
        it != pickedObjectsLists.end();++it, ++i)
    {
        size_t finalSize = 0;
        if ( !it->second ) continue;
        std::vector<RuntimeObject*> & arr = *it->second;

        for(unsigned int k = 0;k<arr.size();++k)
        {
            RuntimeObject * obj = arr[k];
            if ( pickedList[i][k] )
            {
                arr[finalSize] = obj;
                finalSize++;
            }
        }
        arr.resize(finalSize);
    }

    return isTrue;
}

void GD_EXTENSION_API LinkObjects(RuntimeScene & scene, RuntimeObject * a, RuntimeObject * b)
{
    if (!a || !b) return;
    ObjectsLinksManager::managers[&scene].LinkObjects(a, b);
}

void GD_EXTENSION_API RemoveLinkBetween(RuntimeScene & scene, RuntimeObject * a, RuntimeObject * b )
{
    if (!a || !b) return;
    ObjectsLinksManager::managers[&scene].RemoveLinkBetween(a, b);
}

void GD_EXTENSION_API RemoveAllLinksOf(RuntimeScene & scene, RuntimeObject * object)
{
    if (!object) return;
    ObjectsLinksManager::managers[&scene].RemoveAllLinksOf(object);
}

}
}