#ifndef RENDERER_H
#define RENDERER_H

#include "simulation.h"
#include "raylib.h"

// Rendering state
struct RenderState {
    Camera3D camera;
    double distance_scale;    // Scale factor for distances
    double size_scale;        // Scale factor for body sizes
    int selected_body_index;  // -1 = no selection
    int body_list_scroll;     // Scroll position for body list
    int body_list_active;     // Active item index in body list
    bool camera_follow_body;  // Whether camera follows selected body
    Vector3 camera_offset;    // Offset from target when following body
    bool was_following_body;  // Previous frame follow state
};

// Renderer initialization and cleanup
void init_renderer(int width, int height, const char* title);
void close_renderer();

// Camera setup and control
void setup_camera(RenderState* render_state);
void update_camera(RenderState* render_state, SimulationState* sim);

// Rendering functions
void render_body(CelestialBody* body, RenderState* render_state);
void render_simulation(SimulationState* sim, RenderState* render_state);
void render_info(SimulationState* sim, const char* config_name);

// UI rendering functions
void render_body_list_ui(SimulationState* sim, RenderState* render_state);
void render_body_info_ui(SimulationState* sim, RenderState* render_state);

// Scaling functions
Vector3 scale_position(Vec3 pos, double scale);
float scale_radius(double radius, double scale);

#endif