#ifndef SDL_H
#define SDL_H
#include "../player.h" // for races/class totals

#define EVENT_TICK 1
#define EVENT_NET 2
#define EVENT_NET_ACCEPT 3
#define EVENT_NET_RECV 4
#define EVENT_NET_LOST 5
#define EVENT_NET_ERROR 6
#define EVENT_NET_CLIENT_RECV 7
#define EVENT_NET_CLIENT_LOST 8
#define EVENT_NET_CLIENT_ERROR 9

struct Font {
  int width;
  int height;
  int s_width;
  int s_height;
  float scale_x;
  float scale_y;
  SDL_Surface *spritesheet;
  SDL_Surface *scaled_spritesheet;
};
struct Font font_mini;
struct Font font_standard;

struct Spritesheet {
  int width;
  int height;
  int s_width;
  int s_height;
  int columns;
  float scale_x;
  float scale_y;
  SDL_Surface *spritesheet;
  SDL_Surface *s_spritesheet;
};
struct Spritesheet player_sprites;
struct Spritesheet item_sprites;
struct Spritesheet equip_sprites;
struct Spritesheet shadow_sprites;
struct Spritesheet npc_sprites;
struct Spritesheet door_sprites;
struct Spritesheet floor_sprites;
struct Spritesheet wall_sprites;

struct Spritesheet ui_sprites;

SDL_Surface* screen;
SDL_Surface* font_spritesheet;
SDL_Surface* ui_spritesheet;
SDL_Surface* camera_surface;
SDL_Event event;

Uint32 delay; // our delay in ms
SDL_TimerID timer_id; // the timer id from SDL_AddTimer
  
int g_video_width;
int g_video_height;
int g_video_mode;
int g_video_fullscreen; // 0=windowed, 1=fullscreen

float g_tile_scale_x;
float g_tile_scale_y;
float g_tile_width;
float g_tile_height;

/* helper stuff */
Uint32 combinepixels(Uint32 pixel_1, Uint32 pixel_2);

/* --- tile stuff --- */
void consoleScaleTiles(const char *input_string);

void interfaceSetScale(float scale_x, float scale_y);
void loadSpritesheetFromMemory(struct Spritesheet *spritesheet, unsigned char *memory, unsigned int length, int width, int height, int columns);
void freeSpritesheet(struct Spritesheet *spritesheet);
void setSpritesheetScale(struct Spritesheet *spritesheet, float scale_x, float scale_y);
// TODO: drawSprite/drawScaledSprite should probably be the same function that uses a flag to use either the scaled or non-scaled surface
void drawSprite(struct Spritesheet *spritesheet, int id, SDL_Surface *target_surface, int start_x, int start_y);
void drawScaledSprite(struct Spritesheet *spritesheet, int id, SDL_Surface *target_surface, int start_x, int start_y);
void drawScaledTransparentSprite(struct Spritesheet *spritesheet, int id, double opacity, SDL_Surface *target_surface, int start_x, int start_y);
void drawScaledSpriteOutline(struct Spritesheet *spritesheet, int id, SDL_Surface *target_surface, int start_x, int start_y);

/* --- core drawing stuff --- */
void interfaceDrawString(SDL_Surface *to_surface, const char *string, int start_x, int start_y);
void interfaceDrawChar(SDL_Surface *to_surface, char ch, int start_x, int start_y);
void interfaceDrawStringF(struct Font *font, SDL_Surface *to_surface, const char *string, int start_x, int start_y);
void interfaceDrawCharF(struct Font *font, SDL_Surface *to_surface, char ch, int start_x, int start_y);

SDL_Surface *interfaceScaleSurface(SDL_Surface *surface, float scale_x, float scale_y);
SDL_Surface *interfaceSmoothScaleSurface(SDL_Surface *surface, float scale_x, float scale_y);

void SDL_CopySurface(SDL_Surface *from_surface, SDL_Rect *from_rect, SDL_Surface *to_surface, SDL_Rect *to_rect);
void SDL_SetOpacity(SDL_Surface *surface, double percent);
SDL_Surface *SDL_ScaleSurface(SDL_Surface *surface, float scale_x, float scale_y);

/* --- ui related stuff --- */
float g_ui_scale_x;
float g_ui_scale_y;
#define UI_HOTBAR_ITEM_HEIGHT 32
#define UI_HOTBAR_ITEM_WIDTH 32

SDL_Surface *ui_messages_surface;
SDL_Rect *ui_messages_target_rect;

float g_hotbar_scale_x;
float g_hotbar_scale_y;
SDL_Surface *ui_hotbar_surface;
SDL_Rect *ui_hotbar_target_rect;

int uiInit();
void uiDraw();
void uiSetScale(float scale_x, float scale_y);

/* --- --- */

void interfaceDrawInventory();

/* --- video related stuff --- */
/***
  This function takes an input string in the following format to set g_video_width, g_video_height, and g_video_fullscreen appropriately:
    WIDTHxHEIGHT 0|1
  TODO: rename to consoleVideoSetSize or something similar to specify its nature as a console command
***/
void interfaceVideoSetSize(const char *input_string);
/*** interfaceVideoSet
  This function recreates the screen with the values from g_video_width, g_video_height, and g_video_fullscreen then frees and recreates the camera_surface.
***/
int interfaceVideoSet();

/* --- font-related stuff --- */
/*** loadFontFromMemory
  This function populates the passed Font structure by taking the passed memory and making an SDL_Surface from it and setting the width and height accordingly (as well as scale_x and scale_y.
***/
void loadFontFromMemory(struct Font *font, unsigned char *memory, unsigned int length, int width, int height);
/*** freeFont
  This function should be called after populating a Font structure via loadFontFromMemory - it simply frees the scaled_spritesheet and spritesheet of the struct.
***/
void freeFont(struct Font *font);
/*** setFontScale
  This function sets the scale_x and scale_y properties of the passed struct to the passed values and creates a new SDL_Surface pointed to be scaled_spritesheet at the appropriate scale - this is acquired by using interfaceScaleSurface on the struct's spritesheet.
***/
void setFontScale(struct Font *font, float scale_x, float scale_y);



static int networkThread(void *nada);
SDL_Thread *network_thread;

Uint32 pushTickEvent(Uint32 interval, void *param);

#endif