#include "mouseapi.h"

MouseAPI::MouseAPI(Camera& camera)
{
    cam = camera.getOgreCamera();
    state = InputManager::getInstance().createInputState("MouseAPI");
    state->setMouseExclusive(false);//does this work
    state->setMouseHandler(this);
    InputManager::getInstance().enterState("MouseAPI");

}

MouseAPI::~MouseAPI(){
    //todo look at gslevel destructor and implement this one
}

virtual void MouseAPI::buttonPressed (MouseButtonCode::ByEnum button)
{
    Ogre::Viewport vp = GraphicsManager::getInstance().getViewport();
    Ogre::Ray ray = getCameraToViewPortRay(mousePos.x/((float)vp.getActualWidth()),mousePos.y/((float)vp.getActualHeight()));
    for(auto event: clickEvents)
    {
        for(auto wantedButton:buttons){
            if(wantedButton == button && ray.intersects(Ogre::Sphere(event.position,radius)))
                (&(event.onClickedFunction))(button);
        }
    }
}

virtual void MouseAPI::mouseMoved    (IntVector2 abs, IntVector2 rel, IntVector2 clippingSize)
{
    mousePos = abs;
}

virtual void MouseAPI::mouseScrolled (int abs, int rel)
{
    Ogre::Viewport vp = GraphicsManager::getInstance().getViewport();
    Ogre::Ray ray = getCameraToViewPortRay(mousePos.x/((float)vp.getActualWidth()),mousePos.y/((float)vp.getActualHeight()));
    for(auto event:scrollEvents){
        if(!event.considerPosition || ray.intersects(Ogre::Sphere(event.position,radius)))
            (*(event.onScrolledFunction))(abs,rel,mousePos);
    }
}

void MouseAPI::addClickableObject(const Vector3& position,float radius,const list<MouseButtonCode::ByEnum>& buttons,void (*onClickedFunction)(MouseButtonCode::ByEnum button))
{
    clickEvents.insert({position,radius,buttons,onClickedFunction});
}
void MouseAPI::addScrollElement(const Vector3& position,float radius,void (*onScrolledFunction)(int abs,int rel,const IntVector2&  mousePos))
{
    scrollEvents.insert(position,radius,onScrolledFunction);
}
void MouseAPI::addScrollElement(void (*onScrolledFunction)(int abs,int rel,const IntVector2&  mousePos))
{
    scrollEvents.insert(onScrolledFunction);
}

void MouseAPI::changeCamera(Camera& camera)
{
    cam = camera.getOgreCamera();
}