InternetServicesBook/src/helpers

#!/usr/bin/env bash

# shellcheck shell=bash

################################################################################
####################### Definitions of global functions ########################
################################################################################

# ``````````````````````````````````````````````````````````````````````````````
# Function name: _sprintf()
#
# Description:
#   Function designed to output to the screen in a clear format.
#
# Usage:
#   _sprintf "type" "message"
#
# Examples:
#   _sprintf "head" "correct certificate: $_ssl_cert_file"
#

function _sprintf() {

  local _FUNCTION_ID="_sprintf"
  local _STATE="0"

  local _s_type="$1"
  local _s_info="$2"

  # Determine the type of character and color for each type
  # of output information.
  if [[ "$_s_type" == "head" ]] ; then

    s_char="::"
    s_trgb="1;32"

  elif [[ "$_s_type" == "info" ]] ; then

    s_char="»"
    s_trgb="0;33"

  elif [[ "$_s_type" == "warn" ]] ; then

    s_char="!"
    s_trgb="1;37"

  elif [[ "$_s_type" == "stop" ]] ; then

    s_char="!"
    s_trgb="1;31"

  else

    s_char="-"
    s_trgb="0;37"

  fi

  # If verbose mode is enabled, display info message.
  # shellcheck disable=SC2154
  if [[ "$_s_type" == "info" ]] ; then

    printf ' \e['${s_trgb}'m%s\e[m %s\n\n' "$s_char" "$_s_info"

  elif [[ "$_s_type" == "light-red" ]] ; then

    s_char="»"
    printf '   \e[1;49;31m%s\e[m %s\n' "$s_char" "$_s_info"

  elif [[ "$_s_type" == "light-green" ]] ; then

    s_char="»"
    printf '   \e[1;49;32m%s\e[m %s\n' "$s_char" "$_s_info"

  elif [[ "$_s_type" == "light-cyan" ]] ; then

    s_char="»"
    printf '   \e[1;49;36m%s\e[m %s\n' "$s_char" "$_s_info"

  else

    # If not, just display only the head, warn or stop string.
    # shellcheck disable=SC2154
    if [[ "$_s_type" == "head" ]] ; then

      if [[ "$s_color" == "true" ]] ; then

        c_trgb="1;38"

        printf '\e['${s_trgb}'m%s\e[m \e['${c_trgb}'m%s\e[m\n\n' "$s_char" "$_s_info"

      else

        printf '\e['${s_trgb}'m%s\e[m %s\n\n' "$s_char" "$_s_info"

      fi

    elif [[ "$_s_type" == "warn" ]] ; then

      if [[ "$s_color" == "true" ]] ; then

        c_trgb="1;43"

        printf ' \e['${s_trgb}'m%s\e[m \e['${c_trgb}'m%s\e[m\n' "$s_char" "$_s_info"

      else

        printf ' \e['${s_trgb}'m%s\e[m %s\n' "$s_char" "$_s_info"

      fi

    elif [[ "$_s_type" == "stop" ]] ; then

      if [[ "$s_color" == "true" ]] ; then

        c_trgb="1;41"

        printf ' \e['${s_trgb}'m%s\e[m \e['${c_trgb}'m%s\e[m\n' "$s_char" "$_s_info"

      else

        printf ' \e['${s_trgb}'m%s\e[m %s\n' "$s_char" "$_s_info"

      fi

    fi

  fi

  return "$_STATE"

}

# ``````````````````````````````````````````````````````````````````````````````
# Function name: _load()
#
# Description:
#   Responsible for loading the configuration file, $config variable
#   parameter is defined in the script call.
#
# Usage:
#   _load "type" "path_to_config_file"
#
# Examples:
#   _load "info" "$config"
#   _load "head" "/tmp/file.cfg"
#

function _load() {

  local _FUNCTION_ID="_load"
  local _STATE="0"

  local _type="$1"
  local _filename="$2"

  if [[ ! -z "$_filename" ]] && [[ -e "$_filename" ]] ; then

    # If we do not want to inform that the file is loaded,
    # the value is 'null', otherwise:
    if [[ "$_type" == "head" ]] ; then

      _sprintf "info" "load configuration: '$_filename'"

    elif [[ "$_type" == "info" ]] ; then

      _sprintf "info" "load configuration: '$_filename'"

    fi

    # shellcheck disable=SC1090
    # If the file exists is loaded.
    . "$_filename" && \
    _logger "info" \
      "${_FUNCTION_ID}()" \
      "configuration file: '$_filename'"

  elif [ -z "$_filename" ] ; then

    _sprintf "stop" "incorrectly loaded '$_filename' file (incorrect filename)"

  else

    _sprintf "stop" "incorrectly loaded '$_filename' file (does not exist?)"

  fi

  return "$_STATE"

}

# ``````````````````````````````````````````````````````````````````````````````
# Function name: _init_skel()
#
# Description:
#   Init user skel:
#     - create directory structure
#
# Usage:
#   _init_skel
#
# Examples:
#   _init_skel
#

function _init_skel() {

  local _FUNCTION_ID="_init_skel"
  local _STATE="0"

  local _shell_config="${HOME}/.bashrc"
  local _ana_string="source \"${HOME}/.awesome-ninja-admins/awesome-ninja-admins\""

  # shellcheck disable=SC2154
  _sprintf "light-cyan" "init user skel"

  # shellcheck disable=SC2154
  rsync -a "${HOME}/.awesome-ninja-admins/skel/" "${HOME}" > /dev/null 2>&1

  # shellcheck disable=SC2154
  _sprintf "light-cyan" "enable awesome-ninja-admins"

  _if_exist=$(grep -q "${_ana_string}" "${_shell_config}" ; echo "$?")

  if [[ "$_if_exist" -ne 0 ]] ; then

    echo "source \"${HOME}/.awesome-ninja-admins/awesome-ninja-admins\"" \
    >> "${_shell_config}"

  fi

  return "$_STATE"

}