#!/bin/bash

BOTNUMBER="+420xxxyyyyyyyyy"
TARGETNUMBER="+420xxxzzzzzzzzz"

mkdir -p .run
jcfile=".run/join-code.txt"
while true; do

	check=$(grep "Session" logs/valheim.log | grep -i "registered" | grep -i "join code" | tail -1 | sed "s/.* join code \(.*\)/\1/")

	if [[ ! -f "$jcfile" ]]; then
		echo "$check" > "$jcfile"
	elif [[ ! "$check" == $(cat $jcfile) ]]; then
		echo "$check" > "$jcfile"
		datum=$(date +"[%d.%m.%Y %H:%M] ")
		message="$datum Valheim join code je: $check"
		signal-cli -u "$BOTNUMBER" send -m "$message" "$TARGETNUMBER" &> /dev/null
		signal-cli -u "$BOTNUMBER" receive  &> /dev/null
	fi
	errcheck=$(grep -ic "code '4098': the operation was called with an invalid handle" logs/valheim.log)
	if [[ $errcheck == 1 ]]; then
		datum=$(date +"[%d.%m.%Y %H:%M] ")
        message="$datum Valheim dedik chybuje - restart"
		srvpid=$(LANG=C ps -ef | grep -v grep | grep -i [v]alheim_server.x86_64 | cut -d" " -f3)
		kill $srvpid
        signal-cli -u "$BOTNUMBER" send -m "$message" "$TARGETNUMBER" &> /dev/null
        signal-cli -u "$BOTNUMBER" receive  &> /dev/null
	fi
	sleep 30
done