#!/bin/sh
#
# upload or delete images on imgur.com

CLIENT_ID='' # you can get your client ID in https://api.imgur.com/oauth2/addclient
DEL_HASH=''
RES=''
SUCCESS=0
FAILURE=1


screen_shot()
{
  IMG=$(mktemp /tmp/tmp.XXXXXX)
  IMG="${IMG}"."png"

  scrot -s -z ${IMG} >/dev/null 2>&1

  return $SUCCESS
}


upload_img()
{
  RES=`curl -sH "Authorization: Client-ID ${CLIENT_ID}" -F "image=@${IMG}" \
    "https://api.imgur.com/3/upload"`

  return $SUCCESS
}


print_img_link()
{
  if echo "${RES}" | grep -qo '"status":200'
  then
    # url
    printf "url: " ; echo ${RES} |
    sed -e 's/.*"link":"\([^"]*\).*/\1/;s/\\//g'

    # delete hash
    printf "delete hash: " ; echo ${RES} |
    sed -e 's/.*"deletehash":"\([^"]*\).*/\1/;s/\\//g'
  fi

  #rm ${IMG}

  return $SUCCESS
}


delete_img()
{
  RES=$(curl -X DELETE -sH "Authorization: Client-ID ${CLIENT_ID}" \
    "https://api.imgur.com/3/image/${DEL_HASH}")

  if echo "${RES}" | grep -qo '"status":200'
  then
    echo "[+] successfull"
  else
    echo "[-] ERROR: deleting image"
    exit $FAILURE
  fi

  echo ${RES}

  return $SUCCESS
}


usage()
{
  if [ $1 -lt 1 -o $1 -gt 2 ]
  then
    echo "[+] usage: imgur.sh up [file] | del <hash>"
    exit 1
  fi

  return 0
}


main()
{
  usage $#

  if [ "${1}" = "up" ]
  then
    if [ ! "${2}" ]
    then
      screen_shot
    else
      IMG="${2}"
    fi
    upload_img
    print_img_link
  elif [ "${1}" = "del" ]
  then
    DEL_HASH="${2}"
    delete_img
  else
    echo "[-] ERROR: unknown option"
  fi

  return $SUCCESS
}


main "${@}"