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  /**@brief BLE interactive app example application main file.
   *
   * @detail This application demonstrates how to control a BLE connection using the command line interface.
   *
   * @note This application requires the use of an external ECC library
   *       for public key and shared secret calculation.
   *       Refer to the application's documentation for more details.
   *
   */
  
  #include "sdk_config.h"
  #include <stdint.h>
  #include <stdio.h>
  #include <string.h>
  #include <stdbool.h>
  #include <stddef.h>
  #include <ctype.h>
  #include "nordic_common.h"
  #include "app_timer.h"
  
  #include "nrf_pwr_mgmt.h"
  
  #include "nrf_cli.h"
  #include "nrf_cli_uart.h"
  #include "nrf_cli_rtt.h"
  
  #include "boards.h"
  
  #include "nrf_log.h"
  #include "nrf_log_ctrl.h"
  #include "nrf_log_default_backends.h"
  #include "nrf_ble_lesc.h"
  
  #include "ble_m.h"
  #include "cli_m.h"
  #include "pm_m.h"
  #include "nfc_m.h"
  #include "nfc_central_m.h"
  
  #define FOUND_DEVICE_REFRESH_TIME APP_TIMER_TICKS(SCAN_LIST_REFRESH_INTERVAL) /**< Time after which the device list is clean and refreshed. */
  
  
  /**@brief Command line interface instance.
   */
  NRF_CLI_UART_DEF(m_cli_uart_transport, 0, 64, 16);
  NRF_CLI_DEF(m_cli_uart, "uart_cli:~$ ", &m_cli_uart_transport.transport, '\r', CLI_LOG_QUEUE_SIZE);
  
  
  /**@brief Function for starting a command line interface working on the UART transport layer.
   */
  static void cli_uart_start(void)
  {
      ret_code_t ret;
  
      ret = nrf_cli_start(&m_cli_uart);
      APP_ERROR_CHECK(ret);
  }
  
  
  #if NRF_MODULE_ENABLED(CLI_RTT)
  NRF_CLI_RTT_DEF(m_cli_rtt_transport);
  NRF_CLI_DEF(m_cli_rtt, "rtt_cli:~$ ", &m_cli_rtt_transport.transport, '\n', CLI_LOG_QUEUE_SIZE);
  
  /**@brief Function for starting a command line interface working on the RTT transport layer.
   */
  static void cli_rtt_start(void)
  {
      ret_code_t ret;
  
      ret = nrf_cli_init(&m_cli_rtt, NULL, true, true, NRF_LOG_SEVERITY_INFO);
      APP_ERROR_CHECK(ret);
  
      ret = nrf_cli_start(&m_cli_rtt);
      APP_ERROR_CHECK(ret);
  }
  
  
  #endif // CLI_RTT
  
  /**@brief Function for configuring UART for CLI.
   */
  static void cli_uart_cfg(void)
  {
      ret_code_t            err_code;
      nrf_drv_uart_config_t uart_config = NRF_DRV_UART_DEFAULT_CONFIG;
  
      uart_config.pseltxd = TX_PIN_NUMBER;
      uart_config.pselrxd = RX_PIN_NUMBER;
      uart_config.hwfc    = NRF_UART_HWFC_DISABLED;
      err_code            = nrf_cli_init(&m_cli_uart, &uart_config, true, true, NRF_LOG_SEVERITY_INFO);
      APP_ERROR_CHECK(err_code);
  }
  
  
  /**@brief Function for handling the adv_list_timer event, which refreshes the connectable devices.
   */
  static void adv_list_timer_handle(void * p_context)
  {
      if (is_scanning())
      {
          connect_addr_clear();
          scan_device_info_clear();
      }
  }
  
  
  /**@brief Function for initializing logging.
   */
  static void log_init(void)
  {
      ret_code_t err_code = NRF_LOG_INIT(app_timer_cnt_get);
  
      APP_ERROR_CHECK(err_code);
  }
  
  // Timer for refreshing scanned devices data.
  APP_TIMER_DEF(m_adv_list_timer);
  
  /**@brief Function for initializing the timer.
   */
  static void timer_init(void)
  {
      ret_code_t err_code = app_timer_init();
  
      APP_ERROR_CHECK(err_code);
  
      err_code = app_timer_create(&m_adv_list_timer, APP_TIMER_MODE_REPEATED, adv_list_timer_handle);
      APP_ERROR_CHECK(err_code);
  
      err_code = app_timer_start(m_adv_list_timer, FOUND_DEVICE_REFRESH_TIME, NULL);
      APP_ERROR_CHECK(err_code);
  }
  
  
  /**@brief Function for initializing power management.
   */
  static void power_management_init(void)
  {
      ret_code_t err_code;
      err_code = nrf_pwr_mgmt_init();
      APP_ERROR_CHECK(err_code);
  }
  
  
  /**@brief Function for handling the idle state (main loop).
   *
   * @details If there is no pending log operation, then sleep until next the next event occurs.
   */
  static void idle_state_handler(void)
  {
      ret_code_t err_code;
      err_code = nrf_ble_lesc_request_handler();
      APP_ERROR_CHECK(err_code);
      
  #if defined(ADAFRUIT_SHIELD) && (ADAFRUIT_SHIELD == 1)
      nfc_tag_process();
  #endif // ADAFRUIT_SHIELD
  
      nrf_cli_process(&m_cli_uart);
      
  #if NRF_MODULE_ENABLED(CLI_RTT)
      nrf_cli_process(&m_cli_rtt);
  #endif // CLI_RTT
      
      if (NRF_LOG_PROCESS() == false)
      {
          nrf_pwr_mgmt_run();
      }
  }
  
  
  int main(void)
  {
      power_management_init();
      log_init();
      timer_init();
      // Console start
      cli_uart_cfg();
      cli_uart_start();
  #if NRF_MODULE_ENABLED(CLI_RTT)
      cli_rtt_start();
  #endif // CLI_RTT
      ble_m_init();
      peer_manager_init();
      nfc_pairing_init();
  #if NRF_MODULE_ENABLED(ADAFRUIT_SHIELD)
      nfc_central_init();
  #endif // ADAFRUIT_SHIELD
      bond_get();
  
      NRF_LOG_RAW_INFO("BLE app with command line interface example started.\r\n");
      NRF_LOG_RAW_INFO("Press Tab to view all available commands.\r\n");
  
      for (;;)
      {
          idle_state_handler();
      }
  }
  
  
  