#!/usr/bin/env bash

script_name="$(basename $(realpath $0))"
working_dir="$(dirname $(realpath $0))"

LOCK_DIR="/tmp/${script_name%%.*}.LOCK"
log_file="${LOCK_DIR}/${script_name%%.*}.log"

error_log="${LOCK_DIR}/${script_name%%.*}.err"


# ----------
# Base Function(s)
# ----------

clean_up() {

   # Perform program exit housekeeping
   rm -rf "$LOCK_DIR"
   blank_line
   exit $1
}

blank_line() {
   if $terminal ; then
      echo ""
   fi
}


# ----------
# Check some prerequisites
# ----------
if [[ -t 1 ]] ; then
   terminal=true
else
   terminal=false
fi

# ----------
# - Jobhandling
# ----------

# - If job already runs, stop execution..
# -
if mkdir "$LOCK_DIR" 2> /dev/null ; then

   ## - Remove lockdir when the script finishes, or when it receives a signal
   trap "clean_up 1" SIGHUP SIGINT SIGTERM

else

   datum=`date +"%d.%m.%Y"`

   msg="[ Error ]: A previos instance of \"`basename $0`\" seems already be running.\n\tExiting now.."

   echo ""
   echo "[ Error ]: A previos instance of that script \"`basename $0`\" seems already be running."
   echo ""
   echo -e "           Exiting now.."
   echo ""

   exit 1

fi


speedtest_log=/var/log/speedtest-cli.log


speedtest-cli --simple > $log_file 2> $error_log
if [[ $? -eq 0 ]]; then
   echo -e "\n\n[ $(date +"%Y-%m-%d %H:%M Uhr") ]\n" >> ${speedtest_log}
   cat "$log_file" >> ${speedtest_log}
fi

clean_up 0