#include "mapview.h"
#include "mapviewdroptarget.h"

#include "toolrenderutils/toolcamera.h"

native enum ManipulationMode_t as NativeHammer.ManipulationMode_t;

[Handle:Editor.MapEditor.MapView]
native class CMapView as NativeHammer.CMapView
{
	CMapDoc GetMapDoc();
	void MarkHudDirty();

	CToolCamera GetCamera();

	bool IsActive();

	// FIXME: Having a Vector2 as return type was corrupting something with the interop
	// Vector2 GetMousePosition();
	inline void GetMousePosition( out Vector2 pos )
	{
		*pos = self->GetMousePosition();
	}

	//
	// We could do dragging purely in C#, but this stuff takes care of a shit load of stuff that I'd rather not right now
	//
	void EnterFreeDragMode( Vector2 vClientPos, CMapNode pObjectToSelect, Vector3 vecInitialHitNormal, bool bAlignToSurface );
	void UpdateFreeDragMode( Vector2 vClientPos, bool bModifyAlignToSurface );
	void ExitFreeDragMode( bool bRestoreToolState );
	inline void GetDropTarget( ref Vector3 pVecNormalOut, ref Vector3 pVecDropPointOut, Vector2 vecPoint2D )
	{
		self->m_pDropTarget->GetDropTarget( pVecNormalOut, pVecDropPointOut, vecPoint2D );
	}

	void UpdateManagedGizmoState( bool isHoveredOverSomething, float distanceFromCamera );

	inline ManipulationMode_t GetManipulationMode()
	{
		if ( self->m_pToolManager == nullptr ) return MANIPULATION_MODE_INVALID;
		return self->m_pToolManager->GetManipulationMode();
	}

	inline float HitDistanceAtMouse()
	{
		Vector2D vMousePos = self->GetMousePosition();

		CUtlVector< HitInfo_t > objects;
		self->ObjectsAt( vMousePos, objects, TRACE_FLAG_IGNORE_MANAGED_GIZMOS );

		float hit = 999999.0f;

		if ( objects.Count() > 0 )
		{
			auto pNearestHit = objects[0];
			hit = objects[0].m_flTraceT * MAX_COORD_FLOAT * 3;
		}

		return hit;
	}
}

native struct HitInfo_t is NativeHammer.HitInfo_t

managed static class Editor.MapEditor.MapViewRender
{
	void OnPreRender( CMapView mapView, ISceneView sceneView );
	bool TraceManagedGizmos( CMapView mapView, Vector2 vecPoint2D, ref asref NativeHammer.HitInfo_t hitInfo );
}

native class CToolCamera as NativeHammer.CToolCamera
{
	Vector3 GetOrigin();
	Angles GetAngles();
	void SetOrigin( Vector3 origin );
	void SetAngles( Angles angles );

	float GetWidth();
	float GetHeight();
	float GetCameraFOV();

	//
	// Finds the 2d point in world space, it lies on the near clipping plane.
	// Works on ortho views too.
	//
	inline void BuildRay( Vector2 view, out Vector3 start, out Vector3 end )
	{
		self->BuildRay( view, *start, *end );
	}
}