#ifndef BUZZ_UPDATE_H
#define BUZZ_UPDATE_H

#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <unistd.h>
#include <string.h>
#include <sys/time.h>
#include <sys/inotify.h>
#include <buzz/buzztype.h>
#include <buzz/buzzdict.h>
#include <buzz/buzzdarray.h>
#include <buzz/buzzvstig.h>
#include <buzz_utility.h>
#include <fstream>

#define delete_p(p)                                                                                                    \
  do                                                                                                                   \
  {                                                                                                                    \
    free(p);                                                                                                           \
    p = NULL;                                                                                                          \
  } while (0)
namespace buzz_update
{
  static const uint16_t CODE_REQUEST_PADDING = 250;
  static const uint16_t MIN_UPDATE_PACKET = 251;
  static const uint16_t UPDATE_CODE_HEADER_SIZE = 5;
  static const uint16_t TIMEOUT_FOR_ROLLBACK = 50;
  /*********************/
  /*   Updater states */
  /********************/

  typedef enum {
    CODE_RUNNING = 0,  // Code executing
    CODE_STANDBY,      // Standing by for others to update
  } code_states_e;

  /*********************/
  /*Message types     */
  /********************/

  typedef enum {
    SENT_CODE = 0,  // Broadcast code
    RESEND_CODE,    // ReBroadcast request
  } code_message_e;

  /*************************/
  /*Updater message queue */
  /*************************/

  struct updater_msgqueue_s
  {
    uint8_t* queue;
    uint8_t* size;
  };
  typedef struct updater_msgqueue_s* updater_msgqueue_t;

  struct updater_code_s
  {
    uint8_t* bcode;
    uint8_t* bcode_size;
  };
  typedef struct updater_code_s* updater_code_t;

  /**************************/
  /*Updater data*/
  /**************************/

  struct buzz_updater_elem_s
  {
    /* robot id  */
    // uint16_t robotid;
    /*current Bytecode content */
    uint8_t* bcode;
    /*old Bytecode name */
    const char* old_bcode;
    /*current bcode size*/
    size_t* bcode_size;
    /*Update patch*/
    uint8_t* patch;
    /* Update patch size*/
    size_t* patch_size;
    /*current Bytecode content */
    uint8_t* standby_bcode;
    /*current bcode size*/
    size_t* standby_bcode_size;
    /*updater out msg queue */
    updater_msgqueue_t outmsg_queue;
    /*updater in msg queue*/
    updater_msgqueue_t inmsg_queue;
    /*Current state of the updater one in code_states_e ENUM*/
    int* mode;
    uint8_t* update_no;
  };
  typedef struct buzz_updater_elem_s* buzz_updater_elem_t;

  /**************************************************************************/
  /*Updater routine from msg processing to file checks to be called from main*/
  /**************************************************************************/
  void update_routine();

  /************************************************/
  /*Initalizes the updater */
  /************************************************/
  int init_update_monitor(const char* bo_filename, const char* stand_by_script, const char* dbgfname, int robot_id);

  /*********************************************************/
  /*Appends buffer of given size to in msg queue of updater*/
  /*********************************************************/

  void code_message_inqueue_append(uint8_t* msg, uint16_t size);

  /*********************************************************/
  /*Processes messages inside the queue of the updater*/
  /*********************************************************/

  void code_message_inqueue_process();

  /*****************************************************/
  /*Obtains messages from out msgs queue of the updater*/
  /*******************************************************/
  uint8_t* getupdater_out_msg();

  /******************************************************/
  /*Obtains out msg queue size*/
  /*****************************************************/
  uint8_t* getupdate_out_msg_size();

  /**************************************************/
  /*Destroys the out msg queue*/
  /*************************************************/
  void destroy_out_msg_queue();

  // buzz_updater_elem_t get_updater();
  /***************************************************/
  /*Sets bzz file name*/
  /***************************************************/
  void set_bzz_file(const char* in_bzz_file, bool dbg);

  /****************************************************/
  /*Tests the code from a buffer*/
  /***************************************************/

  int test_set_code(uint8_t* BO_BUF, const char* dbgfname, size_t bcode_size);

  /****************************************************/
  /*Destroys the updater*/
  /***************************************************/

  void destroy_updater();

  /****************************************************/
  /*Checks for updater message*/
  /***************************************************/

  int is_msg_present();

  /****************************************************/
  /*Compiles a bzz script to bo and bdbg*/
  /***************************************************/

  int compile_bzz(std::string bzz_file);

  /****************************************************/
  /*Set number of robots in the updater*/
  /***************************************************/

  void updates_set_robots(int robots);
}
#endif