Flying Bear Ghost 5 Telegram Bot

3d-printer-status-bot.sh

#!/bin/bash
PRINTER_IP={IP}
API=https://api.telegram.org/bot{TOKEN}
CHAT={CHAT}

STATE_FILE=/run/3d-printer-sate.mon
MESSAGE_ID_FILE=/run/3d-printer-msg-id.mon

# Status table
STATE_OFFLINE=f
STATE_ONLINE=n
STATE_PRINTING=p


function send {
	/usr/bin/curl -s -X POST $API/sendMessage -d chat_id="$CHAT" -d text="3D Printer%0A$1" | /usr/bin/jq '.result.message_id' > $MESSAGE_ID_FILE
}

function update {
	MESSAGE_ID=$(cat $MESSAGE_ID_FILE)
	echo "update $MESSAGE_ID"
	if [[ $MESSAGE_ID == ?(-)+([0-9]) ]]; then
		/usr/bin/curl -s -X POST $API/editMessageText -d chat_id="$CHAT" -d message_id="$MESSAGE_ID" -d text="3D Printer%0A$1"
	fi
}

# Prev state
touch $STATE_FILE
PREV_STATE=$(cat $STATE_FILE)
PREV_STATE=${PREV_STATE:-$STATE_OFFLINE}
echo "Prev state $PREV_STATE"

# Cur state
NC_OUT=$(nc -d -I1 -w5 $PRINTER_IP 8080 | head -c 128 ; echo -e "\n${PIPESTATUS[0]}\n")
NC_CODE=$(echo "$NC_OUT" | tail -n 1)
NC_OUT=$(echo "$NC_OUT" | grep "SD printing" | tail -n 1)
echo "nc out $NC_OUT"
echo "nc code $NC_CODE"

if [ $NC_CODE -ne 0 ]; then
	CUR_STATE=$STATE_OFFLINE
elif [[ $NC_OUT == *"Not"* ]]; then
	CUR_STATE=$STATE_ONLINE
elif [[ ! -z "$NC_OUT" ]]; then
	CUR_STATE=$STATE_PRINTING
	PROGRESS_RAW=$(echo "$NC_OUT" | cut -d' ' -f4)
	PROGRESS_PART1=$(echo "$PROGRESS_RAW" | cut -d'/' -f1 -s)
	PROGRESS_PART2=$(echo "$PROGRESS_RAW" | cut -d'/' -f2 -s)
	if [[ ! -z "$PROGRESS_RAW" && $PROGRESS_PART2 -gt 0 && $PROGRESS_PART2 -ge $PROGRESS_PART1 ]]; then
		PROGRESS_PERCENT=$(python -c "print ('%.2f' % (100.0*$PROGRESS_RAW))")
	fi
else
	CUR_STATE=$PREV_STATE
fi

echo "$CUR_STATE" > $STATE_FILE
echo "Cur state $CUR_STATE"
echo "Prgrs raw $PROGRESS_RAW"
echo "Prgrs perc $PROGRESS_PERCENT"

# State machine

  if [[ $PREV_STATE == $STATE_OFFLINE  && $CUR_STATE == $STATE_OFFLINE ]]; then
	true
elif [[ $PREV_STATE == $STATE_OFFLINE  && $CUR_STATE == $STATE_ONLINE ]]; then
	send "Now online!"
elif [[ $PREV_STATE == $STATE_OFFLINE  && $CUR_STATE == $STATE_PRINTING ]]; then
	send "Printing started!"

elif [[ $PREV_STATE == $STATE_ONLINE   && $CUR_STATE == $STATE_OFFLINE ]]; then
	send "Now offline!"
elif [[ $PREV_STATE == $STATE_ONLINE   && $CUR_STATE == $STATE_ONLINE ]]; then
	true
elif [[ $PREV_STATE == $STATE_ONLINE   && $CUR_STATE == $STATE_PRINTING ]]; then
	send "Printing started!"

elif [[ $PREV_STATE == $STATE_PRINTING && $CUR_STATE == $STATE_OFFLINE ]]; then
	send "Now offline!"
elif [[ $PREV_STATE == $STATE_PRINTING && $CUR_STATE == $STATE_ONLINE ]]; then
	send "Printing done!"
elif [[ $PREV_STATE == $STATE_PRINTING && $CUR_STATE == $STATE_PRINTING ]]; then
	if [[ ! -z "$PROGRESS_PERCENT" ]]; then
		update "printing $PROGRESS_PERCENT%"
	fi
else
	send "Shit happends [$PREV_STATE]->[$CUR_STATE]"
fi

README.md

1. Add M27 S10 to your starting G-Code
2. Install prerequirements apt-get install netcat curl python3 && snap install jq
3. Fill up your printer {IP} PRINTER_IP=192.168.0.3
4. Create bot and fill up {TOKEN} https://telegrambots.github.io/book/1/quickstart.html
5. Send any mesage to your bot
6. Execute https://api.telegram.org/botXXX:YYYY/getUpdates (replace XXX:YYYY with your bot token)
7. Look for "chat":{"id":-zzzzzzzzzz, -zzzzzzzzzz is your chat id (with the negative sign)
8. Fill up chat id CHAT=1234567
9. Copy this script into /opt/ and make it executable chmod +x
10. Log in as root sudo su
11. Start crontab editor crontab -e
12. Add new line * * * * * /opt/3d-printer-status-bot.sh > /run/3d-printer.last 2>&1 and make shure you have one empty line at the end of file
13. Save

Done!