#include "core/EntityManager.h"
#include "core/Logger.h"
#include "core/ScriptManager.h"
#include "core/XmlBackground2DFile.h"
#include "core/XmlMapFile.h"

#include "map/QGearsBackground2DFileManager.h"
#include "map/QGearsWalkmeshFileManager.h"


XmlMapFile::XmlMapFile(const Ogre::String& file):
    XmlFile(file)
{
}


XmlMapFile::~XmlMapFile()
{
}


void
XmlMapFile::LoadMap()
{
    TiXmlNode* node = m_File.RootElement();

    if(node == nullptr || node->ValueStr() != "map")
    {
        LOG_ERROR(m_File.ValueStr() + " is not a valid fields map file! No <map> in root.");
        return;
    }

    node = node->FirstChild();
    while(node != nullptr)
    {
        if(node->Type() == TiXmlNode::TINYXML_ELEMENT && node->ValueStr() == "walkmesh")
        {
            Ogre::String name(GetString(node, "file_name"));
            if(!name.empty())
            {
                QGears::WalkmeshFileManager::getSingleton();
                QGears::WalkmeshFilePtr walkmesh =  QGears::WalkmeshFileManager::getSingleton().load(name, "Game").staticCast<QGears::WalkmeshFile>();
                EntityManager::getSingleton().GetWalkmesh()->load(walkmesh);
            }
        }
        else if(node->Type() == TiXmlNode::TINYXML_ELEMENT && node->ValueStr() == "movement_rotation")
        {
            Ogre::Degree rotation = Ogre::Degree(GetFloat(node, "degree", 0));
            EntityManager::getSingleton().SetPlayerMoveRotation(Ogre::Radian(rotation));
        }
        else if(node->Type() == TiXmlNode::TINYXML_ELEMENT && node->ValueStr() == "background2d")
        {
            Ogre::String name = GetString(node, "file_name");
            if(name != "")
            {
                // TODO migrate this code to a Resource and use it's group to load background
                QGears::Background2DFilePtr background =  QGears::Background2DFileManager::getSingleton().load(name, "Game").staticCast<QGears::Background2DFile>();
                EntityManager::getSingleton().GetBackground2D()->load(background);
            }
        }
        else if(node->Type() == TiXmlNode::TINYXML_ELEMENT && node->ValueStr() == "entity_model")
        {
            Ogre::String name = GetString(node, "name");
            if(name == "")
            {
                LOG_ERROR("There is no name specified for <entity_model> tag.");
                continue;
            }
            Ogre::String file_name = GetString(node, "file_name");
            if(file_name == "")
            {
                LOG_ERROR("There is no file_name specified for <entity_model> tag.");
                continue;
            }

            Ogre::Vector3 position(GetVector3(node, "position"));
            Ogre::Degree direction(Ogre::Degree(GetFloat(node, "direction")));
            Ogre::Vector3 scale(GetVector3(node, "scale", Ogre::Vector3::UNIT_SCALE));
            Ogre::Quaternion orientation(GetQuaternion(node, "root_orientation"));

            EntityManager::getSingleton().AddEntity(name, file_name, position, direction, scale, orientation);
        }
        else if(node->Type() == TiXmlNode::TINYXML_ELEMENT && node->ValueStr() == "entity_trigger")
        {
            Ogre::String name = GetString(node, "name");
            if(name == "")
            {
                LOG_ERROR("There is no name specified for <entity_trigger> tag.");
                continue;
            }

            Ogre::Vector3 point1 = GetVector3(node, "point1", Ogre::Vector3::ZERO);
            Ogre::Vector3 point2 = GetVector3(node, "point2", Ogre::Vector3::ZERO);
            bool enabled = GetBool(node, "enabled", false);

            EntityManager::getSingleton().AddEntityTrigger(name, point1, point2, enabled);
        }
        else if(node->Type() == TiXmlNode::TINYXML_ELEMENT && node->ValueStr() == "entity_point")
        {
            Ogre::String name = GetString(node, "name");
            if(name == "")
            {
                LOG_ERROR("There is no name specified for <entity_point> tag.");
                continue;
            }

            Ogre::Vector3 position = GetVector3(node, "position");
            float rotation = GetFloat(node, "rotation");
            EntityManager::getSingleton().AddEntityPoint(name, position, rotation);
        }
        else if(node->Type() == TiXmlNode::TINYXML_ELEMENT && node->ValueStr() == "entity_script")
        {
            Ogre::String name = GetString(node, "name");
            if(name == "")
            {
                LOG_ERROR("There is no name specified for <entity_script> tag.");
                continue;
            }

            EntityManager::getSingleton().AddEntityScript(name);
        }
        else if(node->Type() == TiXmlNode::TINYXML_ELEMENT && node->ValueStr() == "script")
        {
            Ogre::String file_name = GetString(node, "file_name");
            if(file_name != "")
            {
                ScriptManager::getSingleton().RunFile(file_name);
            }
        }

        node = node->NextSibling();
    }
}



const Ogre::String
XmlMapFile::GetWalkmeshFileName()
{
    TiXmlNode* node = m_File.RootElement();

    if(node == nullptr || node->ValueStr() != "map")
    {
        LOG_ERROR("Field Map XML Manager: " + m_File.ValueStr() + " is not a valid fields map file! No <map> in root.");
        return "";
    }

    node = node->FirstChild();
    while(node != nullptr)
    {
        if(node->Type() == TiXmlNode::TINYXML_ELEMENT && node->ValueStr() == "walkmesh")
        {
            return GetString(node, "file_name");
        }
        node = node->NextSibling();
    }

    LOG_WARNING("Can't find field's walkmesh in " + m_File.ValueStr() + ".");
    return "";
}