#pragma once

#include <queue>
#include "../Chunk.hpp"
#include "../ChunkIndex.hpp"
#include "../ChunkRegistry.hpp"
#include "../Position.hpp"

namespace MC::World::Generation {

class Lighting {
public:
    void add_chunk(Chunk& chunk);
    void add_block(Chunk& chunk, Position::BlockLocal position, U8 light);

    void illuminate(Chunk& chunk);
private:
    static constexpr U8 SunBrightness = 200;
    static constexpr U8 DefaultFalloff = 10;

    struct Operation {
        ChunkIndex chunk;
        Position::BlockLocal position;
        U8 origin;
    };

    void enqueue(ChunkIndex chunk, Position::BlockLocal position, U8 origin);
    void process(Chunk& chunk, Operation op);

    std::queue<Operation> m_queue;
};

}