#!/bin/sh
if [ -z $1 ] || [ -z $2 ] || [ -z $3 ]; then echo "usage: automat server username password"; exit 1; fi 
pwf=~/.mtpw
srv=$1
prt=30000
usr=$2
passwd=$3
logfile=$HOME/.wslog
chatlogdir=~/.wschat
mtpid=0
mtpath=$(dirname $0)
dbg=1
quit=1
if [ ! -z $4 ]; then dbg=0; fi
mkdir -p $chatlogdir
if [ -f $pwf ]; then pas=$(cat $pwf); fi
check_host() {
    if [ -x $(which nc) ]; then return 0; fi
    nc -zu $1 $2 && return 0;
    return 1
}


startmt() {  
    $mtpath/bin/minetest --go --address $srv --port $prt --name $usr --password $passwd 2>&1 | while read l; do
       if [ "$(echo $l |grep '\[cchat\]')" != "" ]; then
            srvstr=$(echo $l|cut -d ' ' -f 5)
            lgstr=$(echo $l|sed 's/ACTION\[Main\]: \[cchat\] //'|sed "s/$srvstr//")
            if [ "$(echo $l |grep '\[sent\]')" != "" ]; then continue; fi
            echo $lgstr >> $chatlogdir/$srvstr.txt
        else 
                echo $l >> $logfile; 
                if [ "$(echo $l|grep 'AUTOMT Actually Quit')" != "" ]; then 
                    quit=0; 
                    kill $mtpid
                fi
        fi      
        if [ $dbg -eq 0 ]; then echo $l; fi
    done &
    mtpid=$!
}

while true; do
    if [ $quit -eq 0 ]; then 
        kill -9 $mtpid
        exit
    fi
    sleep 1
    if check_host $srv $prt; then
        if ! ps $mtpid >/dev/null 2>&1 && [ $quit -eq 1 ]; then startmt; fi
    fi
    sleep 1
done