#include "utils.h"

// Pretty much any object in the game.

#ifndef ENTITY_H
#define ENTITY_H

#define ENTITY_COUNT 15

#define ENTITY_NAME_MAX 16

#define INTERACTION_MENU_MAX 9
#define INTERACTION_LABEL_MAX 32
#define INTERACTION_CHAT_MAX 256

#define ENTITY_BUILDING_CUBE_SIZE (Vector3){4.0, 4.0, 4.0}
#define ENTITY_BUILDING_GROUND_OFFSET 0.03

typedef int8_t EntityId;
typedef enum InteractionCommand InteractionCommand;
typedef enum Selection Selection;

typedef struct Entity Entity;

typedef InteractionCommand (*InteractionCallback)(Entity* entity, Game* game,
                                                  Selection selection);
typedef void (*InitEntityCallback)(Entity* entity);
typedef void (*UpdateEntityCallback)(Entity* entity, Game* game);
typedef void (*CloseEntityCallback)(Entity* entity);

enum {
  ENTITY_NONE = -1,
  OLD_MINT,
  STICKY_NICKEL,
  TREE,
  BUSH,
  FLOWER,
  POND,
  UTILITY_POLE,
  SAMANTHA,
  SAMANTHAS_SPOT,
  TRASHCAN,
  TRASH,
  MEDICAL_TRASH,
  JOHN,
  JOHNS_STORE,
  RON
};

enum InteractionCommand {
  INTERACTION_END,
  INTERACTION_TALK,
  INTERACTION_SHOW_MENU,
  INTERACTION_TALK_AND_SHOW_MENU,
  INTERACTION_DO_NOTHING
};

enum Selection {
  SELECTION_NONE = -1,
  SELECTION_INTERACT,
  SELECTION_NEXT_MESSAGE,
  SELECTION_MENU_ITEM, // +x to select any given menu entry
  SELECTION_LEAVE = SELECTION_MENU_ITEM + INTERACTION_MENU_MAX
};

struct Entity {
  EntityId id;
  Vector3 position; // Shouldnt be changed directly.
  BoundingBox box;
  void* data;
};

// Cubemap based building.
typedef struct {
  Model model;
  Color* pixelMap;
} EntityBuilding;

typedef struct {
  char name[ENTITY_NAME_MAX];
  InitEntityCallback initCallback;
  UpdateEntityCallback updateCallback;
  CloseEntityCallback closeCallback;
  InteractionCallback interactionCallback;
  bool isPlace;
  bool isBuilding;
  bool canBeSelected;
} EntityEntry;

// Am I still insane if I am aware of my insanity?

extern const EntityEntry entityEntries[ENTITY_COUNT];

Entity createEntity(EntityId id, Vector3 position);
void updateEntity(Entity* entity, Game* game);
void closeEntity(Entity* entity);

const char* getEntityName(EntityId id);

void setEntityPosition(Entity* entity, Vector3 position);
void placeEntityOnGround(Entity* entity, const World* world);

bool entityIsPlace(EntityId id);
bool entityIsBuilding(EntityId id);
bool entityCanBeSelected(EntityId id);

float getEntityDistance(Entity entity, Vector3 position);

InteractionCommand interactWithEntity(Entity* entity, Game* game,
                                      Selection selection);
int getInteractionMenuIndex(Selection selection);

BoundingBox entityBoxFromScale(float scale, float width, float height);

EntityBuilding* createEntityBuilding(Image heightmap);
void freeEntityBuilding(EntityBuilding* entityBuilding);

#endif