#ifndef UI_RENDERER_H
#define UI_RENDERER_H

#include "simulation.h"
#include "renderer.h"
#include "raylib.h"
#include "maneuver.h"
#include <string.h>

enum ManeuverDialogTab {
    MD_TAB_CREATE,
    MD_TAB_HOHMANN,
    MD_TAB_EDIT
};

struct ManeuverDialogState {
    bool open;
    ManeuverDialogTab active_tab;

    int craft_index;
    char name[64];
    int direction_active;
    double delta_v;
    int trigger_type_active;
    double trigger_value;
    int edit_maneuver_index;

    int target_body_index;
    int current_body_index;
    int transfer_body_index;
    bool show_hohmann_preview;
    HohmannTransfer last_calc;

    bool show_preview;
    bool preview_valid;
    OrbitalElements preview_elements;

    char error_message[256];
    bool show_error;
    bool show_delete_confirm;
};

// UI state
struct UIState {
    int body_list_scroll;
    int body_list_active;
    int selected_craft_index;

    ManeuverDialogState maneuver_dialog;
    int maneuver_list_active;
    int maneuver_list_scroll;
    int selected_maneuver_index;

    int cached_body_count;
    int cached_craft_count;
    int cached_maneuver_count;
    int cached_executed_count;
    int body_list_buffer_size;
    char* body_list_buffer;
    int craft_list_buffer_size;
    char* craft_list_buffer;
    int body_dropdown_buffer_size;
    char* body_dropdown_buffer;
    int maneuver_list_buffer_size;
    char* maneuver_list_buffer;
};

void gui_init();

// UI rendering functions
void render_info(SimulationState* sim);
void render_body_list_ui(SimulationState* sim, RenderState* render_state, UIState* ui_state);
void render_body_info_ui(SimulationState* sim, RenderState* render_state, UIState* ui_state);
void render_maneuver_list_ui(SimulationState* sim, RenderState* render_state, UIState* ui_state);
void render_maneuver_dialog(SimulationState* sim, RenderState* render_state, UIState* ui_state);
void render_maneuver_create_tab(SimulationState* sim, UIState* ui_state, int x, int y, int width, int height);
void render_maneuver_edit_tab(SimulationState* sim, UIState* ui_state, int x, int y, int width, int height);
void update_orbital_preview(SimulationState* sim, UIState* ui_state);
void render_orbital_preview(SimulationState* sim, UIState* ui_state, Rectangle bounds);
bool validate_maneuver_inputs(SimulationState* sim, UIState* ui_state);
void generate_maneuver_name(SimulationState* sim, UIState* ui_state);
void create_maneuver_from_dialog(SimulationState* sim, UIState* ui_state);
void update_maneuver_from_dialog(SimulationState* sim, UIState* ui_state);
void render_maneuver_hohmann_tab(SimulationState* sim, UIState* ui_state, int x, int y, int width, int height);
void calculate_hohmann_for_dialog(SimulationState* sim, UIState* ui_state);
void create_hohmann_burns(SimulationState* sim, UIState* ui_state, bool create_both_burns);
void load_maneuver_into_dialog(SimulationState* sim, UIState* ui_state, int maneuver_index);
void delete_maneuver_from_dialog(SimulationState* sim, UIState* ui_state);
void ui_state_init_buffers(UIState* ui_state);
void ui_state_free_buffers(UIState* ui_state);

#endif