#pragma once

#include <vector>
#include "map/TileLayer.h"

namespace eve::graphics {
struct DrawItem2D;
}

#include <vector>

namespace eve::graphics {
class Graphics;
}

namespace eve::map {

/** @brief Draws all visible TileLayer entities via Graphics batch path (UV atlas quads). */
class TileRenderSystem {
public:
    /** @brief Advance TileSet animation clocks once per map update. */
    static void update(float dt);
    /** @brief Append non-empty visible tiles into a shared 2D draw queue. */
    static void collect(std::vector<graphics::DrawItem2D> &out);
    /** @brief Viewport-aware collection that rejects off-screen chunks before scanning cells. */
    static void collect(std::vector<graphics::DrawItem2D> &out, int viewWidth, int viewHeight);

    /** @brief Collect + draw tiles only (no present). Null gfx is a no-op. */
    static void render(graphics::Graphics *gfx);

    /** @brief Number of non-empty visible tiles collected by the last pass. */
    static int lastVisibleTileCount();
    /** @brief Number of collected tiles using irregular per-GID metadata. */
    static int lastCustomVisualCount();
    /** @brief Number of distinct atlas textures referenced by the last pass. */
    static int lastAtlasCount();
    /** @brief Spatial-index work counters for deterministic performance regressions. */
    static int lastVisitedChunkCount();
    static int lastVisitedCellCount();
};

/**
 * @brief Polls bound config files (Resource.path) and hot-reloads when modtime changes.
 * Returns number of layers reloaded.
 */
class TileConfigSystem {
public:
    static int poll();
};

}  // namespace eve::map