#pragma once

#include <vector>

#include "utils/defines.hpp"

class TileCollider {
   public:
    enum class Tile : int {
        EMPTY = 0,
        WALL = 1,
        PASSABLE = 2,
        SLOPE_L = 3,
        SLOPE_R = 4
    };

    struct FloorHit {
        float y{-1};
        Tile type{Tile::EMPTY};
        int tile_x{0};
        int tile_y{0};
    };

    struct SlopeInfo {
        bool on_slope{false};
        Tile type{Tile::EMPTY};
        int tile_x{0};
        int tile_y{0};
        float surface_y{0};
    };

    explicit TileCollider(const std::vector<int>& collision_tile_map);

    // Queries básicas
    [[nodiscard]] auto getTileAt(int tile_x, int tile_y) const -> Tile;
    [[nodiscard]] auto isSolid(int tile_x, int tile_y) const -> bool;
    [[nodiscard]] auto getSlopeY(int tile_x, int tile_y, float px) const -> float;

    // Colisión para el Player
    [[nodiscard]] auto checkWallLeft(float x, float y, float w, float h) const -> float;
    [[nodiscard]] auto checkWallRight(float x, float y, float w, float h) const -> float;
    [[nodiscard]] auto checkCeiling(float x, float y, float w) const -> float;
    [[nodiscard]] auto checkFloor(float x, float foot_y_current, float w, float foot_y_new) const -> FloorHit;
    [[nodiscard]] auto hasGroundBelow(float x, float foot_y, float w) const -> bool;
    [[nodiscard]] auto checkSlopeBelow(float x, float foot_y, float w) const -> SlopeInfo;

    // Devuelve true si el jugador está parcialmente dentro de algún tile de slope
    // (algún pie está por debajo de la superficie de un slope que solapa)
    [[nodiscard]] auto isInsideAnySlope(float x, float foot_y, float w) const -> bool;

   private:
    static constexpr int TS = ::Tile::SIZE;
    static constexpr int MW = ::Map::WIDTH;
    static constexpr int MH = ::Map::HEIGHT;

    const std::vector<int>& tile_map_;

    [[nodiscard]] static auto toTile(int px) -> int { return px / TS; }
};