#ifndef idD3EDC396AA314474B3D909559FFC0247
#define idD3EDC396AA314474B3D909559FFC0247

#include "primitivetypes.hpp"
#include "components/tilestreamer.hpp"
#include "components/tileiterator.hpp"
#include <algorithm>
#include <vector>

namespace dk {
	template <typename T, size_t D>
	class Viewport;

	template <size_t D>
	class LayerBase {
	public:
		typedef Vector<CoordinateScalarType, D> coords;

		LayerBase ( const coords& parCount, const coords& parTileSize, const coords& parMasterTileSize );
		virtual ~LayerBase ( void ) noexcept = default;

	protected:
		coords m_count;
		coords m_tilesize;
		coords m_mastersize;
	};

	template <typename T, size_t D>
	class Layer : public LayerBase<D> {
	public:
		typedef typename LayerBase<D>::coords coords;
		typedef TileStreamer<T, D> streamer_type;
		typedef TileIterator<T, D> iterator;

		Layer ( const Layer& ) = delete;
		Layer ( Layer&& ) = default;
		Layer ( const coords& parCount, const coords& parTileSize, const coords& parMasterTileSize, streamer_type&& parStreamer );
		virtual ~Layer ( void ) noexcept = default;

		Layer& operator= ( const Layer& ) = delete;

		iterator begin ( void );
		void setActiveViewport ( const coords& parFrom, const coords& parCount );

	private:
		streamer_type m_streamer;
		Viewport<T, D> m_activeViewport;
		std::vector<T> m_tiles;
	};

	namespace implem {
		template <size_t D>
		typename LayerBase<D>::coords::value_type area ( const typename LayerBase<D>::coords& parVec ) a_pure;
	}
} //namespace dk

#include "implem/layer.inl"

#endif