#!/bin/bash
source $HOME/.bwda

# Usage function
usage(){
  echo "Usage: $(basename $0) [opt]"
  echo "List the contents of the current directory on bwda."
  echo "Options are directly passed to lftp's ls command with the following exceptions:"
  echo " -h | --help              display this message"
}

# Get command line argument
nparallel=1
nchannel=1
flag_printcommands=false

POSITIONAL=()
while [[ $# -gt 0 ]]
do
key="$1"
case $key in
    -h|--help)
    usage
    exit 0
    shift
    ;;
    *)
    POSITIONAL+=("$1")
    shift
    ;;
esac
done
set -- "${POSITIONAL[@]}" # restore positional parameters

# Get path to correct directory on bwda
ldir_target="$(realpath $PWD)"
if [[ $ldir_target == "${ldir_base}"* ]]; then
  dir_target=${ldir_target#"$ldir_base"}
else
  echo "Current directory is not located on LSDF!"
  echo "Is the base directory setting correct?"
  echo "ldir_base: $ldir_base"
  exit -2
fi
rdir_target="${rdir_base}/${dir_target}"

# Construct command
cmd="open sftp://${bwda_acc}@${bwda_url}\n"
cmd+="cd ${rdir_target}\n"
cmd+="ls ${POSITIONAL[@]}\n"
cmd+="bye\n"

# Execute commands
tmpfile=$(mktemp)
printf "$cmd" > $tmpfile
lftp -f $tmpfile
rm $tmpfile