#pragma once

#include "AbstractFlat.hpp"
#include "surrounding.hpp"

#include "../data/safe_queue.hpp"
#include "../data/safe_priority_queue.hpp"
#include "../data/circular_buffer.hpp"
#include "../render/buffer/ShortIndexed.hpp"
#include <thread>

using namespace data;
namespace contouring {
    /// Stupid cubes 1:1 contouring
    class FlatSurroundingBox: public AbstractFlat {
    public:
        FlatSurroundingBox(const std::string&);
        virtual ~FlatSurroundingBox();

        void update(const voxel_pos&, const world::area_map&) override;

        /// Chunk data change
        void onUpdate(const area_<chunk_pos> &, const chunk_pos &, const world::ChunkContainer &, geometry::Faces) override;
        /// Chunk existante ping
        /// @note notify for chunks entering view while moving
        void onNotify(const area_<chunk_pos> &, const chunk_pos &, const world::ChunkContainer &) override;

    protected:
        safe_priority_queue_map<area_<chunk_pos>, surrounding::faces, int, area_hash> loadQueue;
        safe_queue<std::pair<area_<chunk_pos>, buffer::ShortIndexed::Data>> loadedQueue;

        bool running = true;
        std::vector<std::thread> workers;

        void enqueue(const area_<chunk_pos> &, const chunk_pos& offset, const world::ChunkContainer &);

    private:
        static inline bool isTransparent(const surrounding::faces &surrounding, const std::pair<ushort, ushort> &idx);
        static void render(const surrounding::faces &surrounding, std::vector<buffer::VertexData> &vertices);
    };
} // namespace contouring