#pragma once
#include <functional>
#include <vector>
#include "../../inc/glm/glm.hpp"
#include "../Defines.h"
#include "VoxelInfo.h"

class BaseVoxelizer
{
public:
	virtual ~BaseVoxelizer() {}

	// Should be called before using the octreebuilder. This method initialize the parts of the voxelizer that are not dependent on the scene.
	virtual bool Initialize() = 0;

	// Loads the scene at the given filename
	virtual bool LoadScene(const std::string& filename) = 0;
	// Unloads the currently loaded scene (freeing up memory)
	virtual bool UnloadScene() = 0;
	// Returns all coordinates that should be voxelized at a certain scale. 
	virtual std::vector<glm::uvec3> GetValidCoords(unsigned8 scale) = 0;
	// Voxelizes the currently loaded scene at the given scale. Scale is given as the log_2 of the resolution (e.g. for 1024x1024x1024 use scale = 10).
	// Overload can be used to voxelize a certain subsection of the scene. 
	// For each filled voxel that is found, the node adder is called. The boolean in the nodeadder is
	// used as certain voxelizers can give multiple colors for the same voxels. The "best" boolean can then be used to indicate if this is the best color for a voxel.
	virtual void Voxelize(unsigned8 scale, unsigned8 partScale, glm::uvec3 partCoord, const std::function<void(const VoxelInfo&, bool best)>& nodeAdder,
		bool colors = true, bool normals = true, bool reflectivity = true) = 0;
	virtual void Voxelize(unsigned8 scale, const std::function<void(const VoxelInfo&, bool best)>& nodeAdder) { Voxelize(scale, scale, glm::uvec3(0), nodeAdder); }
};