#!/bin/bash

echo -e "\nLog file script for CubeSatSim\n"

if [ "$1" = "-h" ]  ; then
  echo "Displays systemd logs for the chose process.  The choices are:"
  echo " -d cubesatsim (also no choice gives you this)"
  echo " -t transmit"
  echo " -c command and control"
  echo " -p pacsat"
  echo " -r frequency control"
  echo " -f frequency display"
  echo " -b pushbutton"
  echo " -o OliveTin"
  echo "Default is the log is dumpted to the screen and written to a file."
  echo "If an additional r is included, the log is realtime, and exits with a Control-C"
  echo
  exit
fi

REALTIME=0
if [ "$2" = "r" ]  ; then
  REALTIME=1
fi

if [ "$REALTIME" = "1" ]  ; then

  echo "To exit, type Control-C"
  echo
  sleep 2
  
  if [ "$1" = "-t" ] ; then
    sudo journalctl -b all  -af -u transmit # > /home/pi/CubeSatSim/logt.txt 
  #  cat /home/pi/CubeSatSim/logt.txt
  #  echo -e "\nTransmit Log file also saved as /home/pi/CubeSatSim/logt.txt"
  elif [ "$1" = "-c" ]; then
    sudo journalctl -b all -af -u command # > /home/pi/CubeSatSim/logc.txt 
  #  cat /home/pi/CubeSatSim/logc.txt
  #  echo -e "\nCommand and Control Log file also saved as /home/pi/CubeSatSim/logc.txt"
  elif [ "$1" = "-p" ]; then
    sudo journalctl -b all  -af -u pacsatsim # > /home/pi/CubeSatSim/logp.txt 
  #  cat /home/pi/CubeSatSim/logp.txt
  #  echo -e "\nCommand and Control Log file also saved as /home/pi/CubeSatSim/logp.txt"
  elif [ "$1" = "-r" ]; then
    sudo journalctl -b all  -af -u frequency # > /home/pi/CubeSatSim/logr.txt 
  elif [ "$1" = "-f" ] ; then
    echo "Transmit  Receive"
    while true; do 
      cat /home/pi/CubeSatSim/frequency.txt | tr -d '\n'
#      echo
      sleep 1
      printf "\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b\b"
    done
  elif [ "$1" = "-b" ]; then
    sudo journalctl -b all  -af -u pushbutton # > /home/pi/CubeSatSim/logb.txt 
  elif [ "$1" = "-o" ]; then
    sudo journalctl -b all  -af -u OliveTin # > /home/pi/CubeSatSim/logb.txt 
  else
    sudo journalctl -b all  -af -u cubesatsim  # > /home/pi/CubeSatSim/log.txt 
  #  cat /home/pi/CubeSatSim/log.txt
  #  echo -e "\nLog file also saved as /home/pi/CubeSatSim/log.txt"
  fi

else
  
  if [ "$1" = "-t" ] ; then
    sudo rm /home/pi/CubeSatSim/logt.txt
    sudo journalctl -b all  -a -u transmit > /home/pi/CubeSatSim/logt.txt 
    cat /home/pi/CubeSatSim/logt.txt
    echo -e "\nTransmit Log file also saved as /home/pi/CubeSatSim/logt.txt"
  elif [ "$1" = "-c" ]; then
    sudo rm /home/pi/CubeSatSim/logc.txt
    sudo journalctl -b all  -a -u command > /home/pi/CubeSatSim/logc.txt 
    cat /home/pi/CubeSatSim/logc.txt
    echo -e "\nCommand and Control Log file also saved as /home/pi/CubeSatSim/logc.txt"
  elif [ "$1" = "-p" ]; then
    sudo rm /home/pi/CubeSatSim/logp.txt
    sudo journalctl -b all  -a -u pacsatsim > /home/pi/CubeSatSim/logp.txt 
    cat /home/pi/CubeSatSim/logp.txt
    echo -e "\nPacSat Log file also saved as /home/pi/CubeSatSim/logp.txt"
  elif [ "$1" = "-r" ]; then
    sudo rm /home/pi/CubeSatSim/logr.txt
    sudo journalctl -b all  -a -u frequency > /home/pi/CubeSatSim/logr.txt 
    cat /home/pi/CubeSatSim/logr.txt
    echo -e "\nFrequency Log file also saved as /home/pi/CubeSatSim/logr.txt"
  elif [ "$1" = "-f" ] ; then
    cat /home/pi/CubeSatSim/frequency.txt
    echo
  elif [ "$1" = "-b" ]; then
    sudo rm /home/pi/CubeSatSim/logb.txt
    sudo journalctl -b all  -a -u pushbutton > /home/pi/CubeSatSim/logb.txt 
    cat /home/pi/CubeSatSim/logb.txt
    echo -e "\nPushbutton Log file also saved as /home/pi/CubeSatSim/logb.txt"
  elif [ "$1" = "-o" ]; then
    sudo rm /home/pi/CubeSatSim/logo.txt
    sudo journalctl -b all  -a -u OliveTin > /home/pi/CubeSatSim/logo.txt 
    cat /home/pi/CubeSatSim/logo.txt
    echo -e "\nOliveTin Log file also saved as /home/pi/CubeSatSim/logo.txt"
  else
    sudo rm /home/pi/CubeSatSim/log.txt
    sudo journalctl -b all  -a -u cubesatsim  > /home/pi/CubeSatSim/log.txt 
    cat /home/pi/CubeSatSim/log.txt
    echo -e "\nLog file also saved as /home/pi/CubeSatSim/log.txt"
  fi

fi