#! /bin/bash

INDI_SERVER=
INDI_USER=
TARGET_SERVER=
TARGET_LOCAL=
USE_PACK=1
USE_UNPACK=1

# Limit band width to 1500kb/s
BWLIMIT=1500

function usage() {
	echo "Copy fits from remote server to local"
	echo "V 0.1 (c) Alphamax 2019"
	echo "usage : $0 [-i] [-u] [-t] [-l] [-P] [-U]"
	echo "        -i : INDI remote server. Must be either name or ip adress"
	echo "        -u : Remote user login"
	echo "        -t : Remote directory where you save the fits files"
	echo "        -l : Local directory where the fits files will be copy"
	echo "        -P : 1 for use remote fpack command before copy. 0 no use fpack command"
	echo "        -U : 1 for use funpack command on local machine. 0 no use funpack command"
	echo "        -h : print this help"
	exit 1
}

while getopts "i:u:t:l:P:U:h:" option; do
	case $option in 	
		i)
			INDI_SERVER=${OPTARG}
			;;
		u)
			INDI_USER=${OPTARG}
			;;
		t)
			TARGET_SERVER=${OPTARG}
			;;
		l)
			TARGET_LOCAL=${OPTARG}
			;;
		P)
			USE_PACK=${OPTARG}
			((USE_PACK == 0 || USE_PACK == 1)) || usage
			;;
		U)
			USE_UNPACK=${OPTARG}
			((USE_UNPACK == 0 || USE_UNPACK == 1)) || usage
			;;
		B)
			BWLIMIT=${OPTARG}
			;;
		h)
			usage
			exit 1
			;;
		*)
			usage
			exit 1
			;; 
	esac
done

if [[ "$USE_PACK" == "1" ]]; then
	ssh -l $INDI_USER $INDI_SERVER "/usr/local/bin/fpack -r -D $TARGET_SERVER/*.fits"
fi

# 	    \
#	  --quiet \
#	  --no-motd \

if [[ $? == 0 ]]; then
	rsync --bwlimit=$BWLIMIT --archive --recursive --remove-source-files --exclude=$TARGET_SERVER --quiet $INDI_USER@$INDI_SERVER:$TARGET_SERVER $TARGET_LOCAL

	if [[ "$USE_UNPACK" == "1" ]]; then
		/usr/local/bin/funpack -D $TARGET_LOCAL/*.fz
	fi
fi

exit $?