#!/bin/sh
###########################################################################
#
# Copyright (c) 2020-2023 Diality Inc. - All Rights Reserved.
#
# THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
# WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
#
# @file    setup.sh
#
# @author  (last)      Behrouz NematiPour
# @date    (last)      16-Dec-2022
# @author  (original)  Behrouz NematiPour
# @date    (original)  13-Mar-2020
#
############################################################################

# @details
#  This script is part of setting up the newly flashed SoM which will run on the device
#  after the start.sh script is done copying files on the device.

# sources
. ./_errors_
. ./_functions_
. ./_variables_

function check_sdcard() {
  while true; do
    if [ ! "$($CMD_SDCARD_DEV)" == "$SDCARD_DEV" ];then                           # if no SD-Card found ask operator to install on and retry after power-cycle.
      echo_dash_comment
      echo_dash_message   "No SD-Card detected"
      echo_dash_message   "UI Software logging will not work without a SD-Card"
      echo_dash_message   "Insert a SD-Card and continue when ready"
      echo_dash_comment
      confirm             "Continue"
      if [ $? -eq $FALSE ]; then
        exit $ERR_GENERAL_NO_SD_CARD
      fi
    else
      break
    fi
  done

  if [ ! "$($CMD_SDCARD_PRT)" == "$SDCARD_PRT"      ]; then return $FALSE; fi  # if partition 1 doesn't exist              , do the format
  if [ ! "$($CMD_LINUX_TYPE)" == "$SDCARD_TYP_NUMB" ]; then return $FALSE; fi  # if partition 1 type is not Linux(83)      , do the format
  return $TRUE                                                                 # otherwise                                 , do not format
}

function format_sdcard() {
  check_sdcard
  if [ $? -eq $TRUE ]; then       # if sd-card is OK
    echo "Found the SD-Card $SDCARD_DEV"
    confirm "Do you want to format the SD-Card"
    if [ $? -eq $FALSE ]; then    # give user an option to skip the format
      return $?
    fi
  fi

  while true; do
    echo "Unmount the SD-Card if is in use"
    umount "$SDCARD_PRT"
    if [ ! "$( mount | grep $SDCARD_PRT)" == "" ]; then # is still mounted
      if [ $? -eq $FALSE ]; then    # if SD-Card cannot the unmounted then stop the format.
        echo "The SD-Card $SDCARD_DEV cannot be unmounted, therefore cannot be formatted"
        confirm "Do you want to retry?"
        if [ $? -eq $FALSE ]; then
          return $FALSE             # do not continue with format
        fi
      else
        break
      fi
    else
      break
    fi
  done

  echo "Removing current partitions"
  sfdisk --delete $SDCARD_DEV               1>/dev/null 2>/dev/null
  echo "Create new partition"
  echo "label:MBR" | sfdisk $SDCARD_DEV     1>/dev/null 2>/dev/null
  echo "type=83" | sfdisk $SDCARD_DEV       1>/dev/null 2>/dev/null
  echo "Create a ext4 file system"
  mkfs.ext4 $SDCARD_PRT -L "Denali_Log" -F  # 1>/dev/null 2>/dev/null

  check_sdcard
  if [ $? -eq $TRUE ]; then
    echo "SD-Card format PASSED"
  else
    echo "SD-Card format FAILED !!!"
  fi
}

format_sdcard

exit 0