#!/usr/bin/env bash

# ./pushover.sh  -t "Pushover via Bash" -m "Pushover message sent with bash from $(hostname -f)" -p1  -s siren -u http://www.google.com -n "Google"

dotenv () {
  set -a
  # shellcheck disable=SC1091
  [ -f "$HOME/.env" ] && . "$HOME/.env" ||  echo -e "${red}\nNo $HOME/.env file found ! Could'nt get update from Github.'.${reset}"
  set +a
}

dotenv

USER_TOKEN=$USER_KEY

# YOUR APPS TOKENS / UPPERCASE NAME WITH _TOKEN (usage: "-a monitor" uses MONITOR_TOKEN)
BASH_TOKEN=$BASH_APP
SYNO_TOKEN=$SYNO_APP
APP_LIST="bash, syno" # FOR USAGE

APP_ID="bash" # Default app

# v1.8
# 24-08-2024 : 
# 14-03-2018 : - Request send only necessary fields.
#              - Added message pipe.
#              - Added monospace option.
#              - Default monitor name
# 12-03-2018 : Added image attachment.
# 30-01-2016 : Added -getopts- arguments to set retry/expire.
# 23-04-2015 : HTML markup language option.

VERSION=1.8

TITLE="<empty>"
URL="<empty>"
URL_TITLE="untitled"
PRIORITY=0
RETRY=60
EXPIRE=86400
SOUND="pushover"
HTML=0
MONOSPACE=0
DEVICE="all"
IMAGE=
DEBUG=0

usage()
{
cat << EOF

usage: $0 options

Push notifications to your Android, iOS, or desktop devices

OPTIONS:
  -a	Application name : "$APP_LIST" (required)
  -m	Message (required)	If the -f (html) flag = 1, message must be surrounded by a single quote
  							Example: -m \"'This is a <b>HTML</b> test'\"

  -t	Title of your notification
  -d	Send to a specific device name	Comma seperated list of devices to receive message
  -p	Priority of your message : -2 (Silent), -1 (Quiet), 0 (Normal), 1 (High), 2 (Emergency)
  -s	Sound (https://pushover.net/api#sounds):
		pushover - Pushover (default)
		bike - Bike
		bugle - Bugle
		cashregister - Cash Register
		classical - Classical
		cosmic - Cosmic
		falling - Falling
		gamelan - Gamelan
		incoming - Incoming
		intermission - Intermission
		magic - Magic
		mechanical - Mechanical
		pianobar - Piano Bar
		siren - Siren
		spacealarm - Space Alarm
		tugboat - Tug Boat
		alien - Alien Alarm (long)
		climb - Climb (long)
		persistent - Persistent (long)
		echo - Pushover Echo (long)
		updown - Up Down (long)
		none - None (silent)
  -i	Attach an image (up to 2.5mb)
  -u	URL Link
  -n	URL Title
  -r	Retry (seconds)		Set retry period for notifications with priority 2 (default ${RETRY})"
  -e	Expire (seconds)	Set expiration time for notifications with priority 2 (default ${EXPIRE})"

  -f	HTML Format		Enable HTML formatting, cannot be used with the -k (monospace) flag
  -k	Monospace Format	Enable monospace messages, cannot be used with the -f (html) flag
  -x	Debug		Must be the first argument !!
  -z	Show some examples
  -h	Show this message

EOF
}

examples()
{
        local script=`basename "$0"`

        echo "EXAMPLES:"
        echo
        echo "  ${script} -a \"bash\" -m \"This is a test\""
        echo "  Sends a simple \"This is a test\" message to all devices."
        echo
        echo "  ${script} -a \"bash\" -m \"This is a test\" -t \"Test Title\""
        echo "  Sends a simple \"This is a test\" message with the title \"Test Title\" to all devices."
        echo
        echo "  ${script} -a \"bash\" -m \"This is a test\" -d \"pixel8,Safari_airbook\""
        echo "  Sends a simple \"This is a test\" message to the devices named \"pixel8\" and \"Safari_airbook\"."
        echo
        echo "  ${script} -a \"bash\" -m \"This is a test\" -u \"http://www.google.com\" -n Google"
        echo "  Sends a simple \"This is a test\" message to all devices that contains a link to www.google.com titled \"Google\"."
        echo
        echo "  ${script} -a \"bash\" -m \"This is a test\" -p 1"
        echo "  Sends a simple \"This is a test\" high priority message to all devices."
        echo
        echo "  ${script} -a \"bash\" -m \"This is a test\" -s bike"
        echo "  Sends a simple \"This is a test\" message to all devices that uses the sound of a bike bell as the notification sound."
        echo
        echo "  ${script} -a \"bash\" -m \"This is a test Pic\" -i /path/to/pic.jpg "
        echo "  Sends a simple \"This is a test Pic\" message to all devices and send the Picture with the message."
        echo
        echo "  ${script} -a \"bash\" -m \"'This is a <b>HTML</b> test'\" -f 1 "
        echo "  Sends a simple \"This is a HTML test\" message with html tag"
        echo
}
ARGS=( -F "user=$USER_TOKEN" )

# MESSAGE PIPE
if [ -p /dev/stdin ]
then
  MESSAGE=$(</dev/stdin)
  ARGS+=( -F "message=$MESSAGE" )
else
  MESSAGE=
fi

while getopts “hfkvt:r:e:u:n:p:s:m:a:d:i:xz” OPTION
do
    case $OPTION in
        t) TITLE=$OPTARG
           ARGS+=( -F "title=$TITLE" ) ;;
        u) URL=$OPTARG
           ARGS+=( -F "url=$URL" ) ;;
        n) URL_TITLE=$OPTARG
           ARGS+=( -F "url_title=$URL_TITLE" ) ;;
        p) PRIORITY=$OPTARG
           ARGS+=( -F "priority=$PRIORITY" ) ;;
        s) SOUND=$OPTARG
           ARGS+=( -F "sound=$SOUND" ) ;;
        f) HTML=1
           ARGS+=( -F "html=$HTML" ) ;;
        k) MONOSPACE=1
           ARGS+=( -F "monospace=$MONOSPACE" ) ;;
        r) [ ! -z $OPTARG ] && RETRY=$OPTARG ;;
        e) [ ! -z $OPTARG ] && EXPIRE=$OPTARG ;;
        d) DEVICE=$OPTARG
           ARGS+=( -F "device=$DEVICE" ) ;;
        i) IMAGE="$OPTARG"
           ARGS+=( -F "attachment=@${IMAGE}" ) ;;
        a)
           APP_ID="$OPTARG"
        ;;
        m)
           if [[ -z $MESSAGE ]]
           then
             MESSAGE=$OPTARG
             ARGS+=( -F "message=$MESSAGE" )
             #ARGS+=( -F "message='$MESSAGE'" )
           fi
           ;;
        v) echo "Pushover shell script version ${VERSION}" && exit 1 ;;
        x) DEBUG=1 ;;
        :) echo "Option -$OPTARG requires an argument." >&2; exit 1 ;;
        h) usage; exit 1 ;;
        z) examples; exit 1 ;;
        ?) usage; exit ;;
    esac
done

# APP TOKEN
if [[ ! -z $APP_ID ]]
then
  APP_ID=`echo $APP_ID | tr '[:lower:]' '[:upper:]'`
  APP_NAME="${APP_ID}_TOKEN"
  APP_TOKEN="${!APP_NAME}"
  ARGS+=( -F "token=$APP_TOKEN" )
fi

# EMERGENCY PRIORITY
if [[ $PRIORITY == 2 ]]
then
  ARGS+=( -F "retry=$RETRY" )
  ARGS+=( -F "expire=$EXPIRE" )
fi

# REQUIRED FIELDS
if [[ -z $MESSAGE ]] || [[ -z $APP_TOKEN ]]
then
  echo -e "\n\\033[31mMessage and Application token are required.\\033[0m"
  usage
  exit 1
fi


if [[ $HTML == 1 ]]
then
  MESSAGE="'$MESSAGE'"
fi

# DEBUG PRINT
if [[ $DEBUG == 1 ]]
then
  echo "TITLE ...... $TITLE"
  echo "DEVICE ..... $DEVICE"
  echo "URL ........ ${URL} (${URL_TITLE})"
  echo "FORMAT ..... HTML ${HTML} MONOSPACE ${MONOSPACE}"
  echo "APP ........ ID:${APP_ID} TOKEN:${APP_TOKEN}"
  echo "PRIORITY ... $PRIORITY"
  if [[ $PRIORITY == 2 ]]
  then
  echo "RETRY ...... $RETRY"
  echo "EXPIRE ..... $EXPIRE"
  fi
  echo "SOUND ...... $SOUND"
  echo "IMAGE  ..... $IMAGE"
  echo "MESSAGE -----------------------------------------"
  echo "${MESSAGE}"
  echo "-------------------------------------------------"
  exit 0
fi

# SEND NOTIFICATION
#curl -s "${ARGS[@]}" https://api.pushover.net/1/messages.json
echo "${ARGS[@]}"