#ifndef _EVAS_CSERVE2_H
#define _EVAS_CSERVE2_H

#include <Eina.h>
#include "evas_cs2.h"

#ifdef ERR
#undef ERR
#endif
#define ERR(...) EINA_LOG_DOM_ERR(_evas_cserve2_bin_log_dom, __VA_ARGS__)
#ifdef DBG
#undef DBG
#endif
#define DBG(...) EINA_LOG_DOM_DBG(_evas_cserve2_bin_log_dom, __VA_ARGS__)
#ifdef WRN
#undef WRN
#endif
#define WRN(...) EINA_LOG_DOM_WARN(_evas_cserve2_bin_log_dom, __VA_ARGS__)
#ifdef INF
#undef INF
#endif
#define INF(...) EINA_LOG_DOM_INFO(_evas_cserve2_bin_log_dom, __VA_ARGS__)

#define DEBUG_LOAD_TIME 1

extern int _evas_cserve2_bin_log_dom;

typedef struct _Slave Slave;
typedef struct _Slave_Thread_Data Slave_Thread_Data;
typedef struct _Shm_Handle Shm_Handle;

typedef enum {
   FD_READ = 1,
   FD_WRITE = 2,
   FD_ERROR = 4
} Fd_Flags;

struct _Client {
    unsigned int id;
    int socket;
    struct {
       Eina_Bool reading;
       char *buf; // buffer of data being read
       int done, size;
       Eina_Binbuf *pending; // pending data to send
    } msg;
    struct {
       Eina_Hash *referencing; // indexed by client file id
    } files;
    struct {
       Eina_Hash *referencing; // indexed by client image id
    } images;
    struct {
       Eina_List *referencing;
    } fonts;
};

typedef struct _Client Client;

struct _Image_Load_Opts {
   unsigned int w, h;
   unsigned int rx, ry, rw, rh;
   unsigned int scale_down_by;
   double dpi;
   Eina_Bool orientation;
};

typedef struct _Image_Load_Opts Image_Load_Opts;

typedef enum {
   IMAGE_OPEN,
   IMAGE_LOAD,
   FONT_LOAD,
   FONT_GLYPHS_LOAD,
   SLAVE_QUIT,
   ERROR
} Slave_Command;

struct _Slave_Msg_Image_Open {
   Eina_Bool has_opts : 1;
   Eina_Bool has_loader_data : 1;
};

struct _Slave_Msg_Image_Opened {
   int w, h;
   int degree;
   int scale; /* used by jpeg when loading in smaller sizes */
   int frame_count;
   int loop_count;
   int loop_hint; /* include Evas.h? Copy the enum around? */
   Eina_Bool alpha : 1;
   Eina_Bool animated : 1;
   Eina_Bool rotated : 1;

   Eina_Bool has_loader_data : 1;
};

struct _Slave_Msg_Image_Load {
   int w, h;
   Image_Load_Opts opts;
   struct {
      int mmap_offset;
      int image_offset;
      int mmap_size;
      int image_size;
   } shm;
   Eina_Bool alpha : 1;
   Eina_Bool has_loader_data : 1;
};

struct _Slave_Msg_Image_Loaded {
   Eina_Bool alpha_sparse : 1;
};

typedef struct _Slave_Msg_Image_Open Slave_Msg_Image_Open;
typedef struct _Slave_Msg_Image_Opened Slave_Msg_Image_Opened;
typedef struct _Slave_Msg_Image_Load Slave_Msg_Image_Load;
typedef struct _Slave_Msg_Image_Loaded Slave_Msg_Image_Loaded;

struct _Slave_Msg_Font_Load {
   void *ftdata1; // Freetype file source info comes here
   void *ftdata2; // Freetype font info comes here
   unsigned int rend_flags;
   unsigned int size;
   unsigned int dpi;
   const char *name;
   const char *file;
   void *data;
   int datasize;
};

struct _Slave_Msg_Font_Loaded {
   void *ftdata1;
   void *ftdata2;
};

struct _Slave_Msg_Font_Glyphs_Load {
   struct {
      void *ftdata1;
      void *ftdata2;
      unsigned int rend_flags;
      unsigned int hint;
   } font;
   struct {
      unsigned int nglyphs;
      unsigned int *glyphs;
   } glyphs;
   struct {
      Shm_Handle *shm;
      unsigned int usage;
      unsigned int nglyphs;
   } cache;
};

struct _Slave_Msg_Glyph {
   unsigned int index;
   unsigned int offset;
   unsigned int size;
   unsigned int rows;
   unsigned int width;
   unsigned int pitch;
   unsigned int num_grays;
   unsigned int pixel_mode;
};

typedef struct _Slave_Msg_Glyph Slave_Msg_Glyph;

struct _Slave_Msg_Font_Cache {
   unsigned int nglyphs;
   Slave_Msg_Glyph *glyphs;
   Shm_Handle *shm;
   unsigned int usage;
};

typedef struct _Slave_Msg_Font_Cache Slave_Msg_Font_Cache;

struct _Slave_Msg_Font_Glyphs_Loaded {
   unsigned int ncaches;
   unsigned int gl_load_time;
   unsigned int gl_render_time;
   unsigned int gl_slave_time;
   Slave_Msg_Font_Cache **caches;
};

typedef struct _Slave_Msg_Font_Load Slave_Msg_Font_Load;
typedef struct _Slave_Msg_Font_Loaded Slave_Msg_Font_Loaded;
typedef struct _Slave_Msg_Font_Glyphs_Load Slave_Msg_Font_Glyphs_Load;
typedef struct _Slave_Msg_Font_Glyphs_Loaded Slave_Msg_Font_Glyphs_Loaded;

typedef void *(*Slave_Request_Msg_Create)(void *data, int *size);
typedef void (*Slave_Request_Msg_Free)(void *msg, void *data);
typedef Msg_Base *(*Slave_Request_Response)(void *data, void *resp, int *size);
typedef void (*Slave_Request_Error)(void *data, Error_Type error);

struct _Slave_Request_Funcs {
   Slave_Request_Msg_Create msg_create;
   Slave_Request_Msg_Free msg_free;
   Slave_Request_Response response;
   Slave_Request_Error error;
};

typedef struct _Slave_Request Slave_Request;
typedef struct _Slave_Request_Funcs Slave_Request_Funcs;

typedef enum {
   FONT_REND_REGULAR = 1,
   FONT_REND_SLANT = 1 << 1,
   FONT_REND_WEIGHT = 1 << 2
} Font_Rend_Flags;

typedef enum {
   CSERVE2_REQ_IMAGE_OPEN = 0,
   CSERVE2_REQ_IMAGE_LOAD,
   CSERVE2_REQ_IMAGE_SPEC_LOAD,
   CSERVE2_REQ_FONT_LOAD,
   CSERVE2_REQ_FONT_GLYPHS_LOAD,
   CSERVE2_REQ_LAST
} Slave_Request_Type;

typedef struct _Glyph_Entry Glyph_Entry;

typedef void (*Fd_Watch_Cb)(int fd, Fd_Flags flags, void *data);
typedef void (*Timeout_Cb)(void); /* void* for compat? */
typedef void (*Main_Loop_Child_Dead_Cb)(int pid, int status); /* void* for compat? */
typedef void (*Slave_Dead_Cb)(Slave *slave, void *data);
typedef void (*Slave_Read_Cb)(Slave *slave, Slave_Command cmd, void *msg, void *data);
typedef void *(*Slave_Thread_Cb)(Slave_Thread_Data *sd, Slave_Command *cmd, const void *cmddata, void *userdata);
typedef void (*File_Change_Cb)(const char *path, Eina_Bool deleted, void *data);

void cserve2_client_accept(int fd);
ssize_t cserve2_client_read(Client *client, void *buf, size_t len);
ssize_t cserve2_client_write(Client *client, const void *buf, size_t len);
void cserve2_client_del(Client *client);
void cserve2_client_deliver(Client *client);
void cserve2_client_error_send(Client *client, unsigned int rid, int error_code);
ssize_t cserve2_client_send(Client *client, const void *data, size_t size);

Eina_Bool cserve2_fd_watch_add(int fd, Fd_Flags flags, Fd_Watch_Cb cb, const void *data);
Eina_Bool cserve2_fd_watch_del(int fd);
Eina_Bool cserve2_fd_watch_flags_set(int fd, Fd_Flags flags);
Eina_Bool cserve2_fd_watch_flags_get(int fd, Fd_Flags *flags);

Eina_Bool cserve2_file_change_watch_add(const char *path, File_Change_Cb cb, const void *data);
Eina_Bool cserve2_file_change_watch_del(const char *path);

void cserve2_on_child_dead_set(Main_Loop_Child_Dead_Cb cb);

void cserve2_timeout_cb_set(int t, Timeout_Cb cb);

Eina_Bool cserve2_main_loop_setup(void);
void cserve2_main_loop_run(void);
void cserve2_main_loop_finish(void);

Eina_Bool cserve2_slaves_init(void);
void cserve2_slaves_shutdown(void);
int cserve2_slave_available_get(void);
Eina_Bool cserve2_slave_cmd_dispatch(void *data, Slave_Command cmd, const void *msg, int size);
Slave *cserve2_slave_run(const char *exe, Slave_Read_Cb read_cb, Slave_Dead_Cb dead_cb, const void *data);
Slave *cserve2_slave_thread_run(Slave_Thread_Cb thread_cb, void *thread_data, Slave_Read_Cb read_cb, Slave_Dead_Cb dead_cb, const void *data);
void cserve2_slave_send(Slave *s, Slave_Command cmd, const char *data, size_t size);
void cserve2_slave_kill(Slave *s);

void cserve2_message_handler(int fd, Fd_Flags flags, void *data);

Shm_Handle *cserve2_shm_request(size_t size);
void cserve2_shm_unref(Shm_Handle *shm);
const char *cserve2_shm_name_get(const Shm_Handle *shm);
off_t cserve2_shm_map_offset_get(const Shm_Handle *shm);
off_t cserve2_shm_offset_get(const Shm_Handle *shm);
size_t cserve2_shm_map_size_get(const Shm_Handle *shm);
size_t cserve2_shm_size_get(const Shm_Handle *shm);
void *cserve2_shm_map(Shm_Handle *shm);
void cserve2_shm_unmap(Shm_Handle *shm);
size_t cserve2_shm_size_normalize(size_t size);

void cserve2_command_run(Client *client, Message_Type type);

void cserve2_cache_init(void);
void cserve2_cache_shutdown(void);
void cserve2_cache_client_new(Client *client);
void cserve2_cache_client_del(Client *client);
int cserve2_cache_file_open(Client *client, unsigned int client_file_id, const char *path, const char *key, unsigned int rid);
void cserve2_cache_file_close(Client *client, unsigned int client_file_id);
int cserve2_cache_image_opts_set(Client *client, Msg_Setopts *msg);
void cserve2_cache_image_load(Client *client, unsigned int client_image_id, unsigned int rid);
void cserve2_cache_image_preload(Client *client, unsigned int client_image_id, unsigned int rid);
void cserve2_cache_image_unload(Client *client, unsigned int client_image_id);

int cserve2_cache_font_load(Client *client, const char *source, unsigned int sourcelen, const char *name, unsigned int namelen, unsigned int rend_flags, unsigned int size, unsigned int dpi, unsigned int rid);
int cserve2_cache_font_unload(Client *client, const char *source, unsigned int sourcelen, const char *name, unsigned int namelen, unsigned int rend_flags, unsigned int size, unsigned int dpi, unsigned int rid);
int cserve2_cache_font_glyphs_load(Client *client, const char *source, unsigned int sourcelen, const char *name, unsigned int namelen, unsigned int rend_flags, unsigned int hint, unsigned int size, unsigned int dpi, unsigned int *glyphs, unsigned int nglyphs, unsigned int rid);
int cserve2_cache_font_glyphs_used(Client *client, const char *source, unsigned int sourcelen, const char *name, unsigned int namelen, unsigned int hint, unsigned int rend_flags, unsigned int size, unsigned int dpi, unsigned int *glyphs, unsigned int nglyphs, unsigned int rid);
void cserve2_cache_stats_get(Client *client, unsigned int rid);
void cserve2_cache_font_debug(Client *client, unsigned int rid);


Slave_Request *cserve2_request_add(Slave_Request_Type type, unsigned int rid, Client *client, Slave_Request *dep, Slave_Request_Funcs *funcs, void *data);
void cserve2_request_waiter_add(Slave_Request *req, unsigned int rid, Client *client);
void cserve2_request_type_set(Slave_Request *req, Slave_Request_Type type);
void cserve2_request_cancel(Slave_Request *req, Client *client, Error_Type err);
void cserve2_request_cancel_all(Slave_Request *req, Error_Type err);
void cserve2_requests_init(void);
void cserve2_requests_shutdown(void);

void cserve2_font_init(void);
void cserve2_font_shutdown(void);
void *cserve2_font_slave_cb(Slave_Thread_Data *sd, Slave_Command *cmd, const void *cmddata, void *data);
void cserve2_font_source_ft_free(void *fontsource);
void cserve2_font_ft_free(void *fontinfo);

#endif /* _EVAS_CSERVE2_H */