#!/usr/bin/env bash

set -e

# parse command line arguments
for i in "$@"; do
case $i in
  -h|--help)
    echo $helptext
    exit 0
  ;;
  *)
    extra_opts="$extra_opts $i"
    shift
  ;;
esac
done

# make sure FREESURFER_HOME is set
if [[ -z "$FREESURFER_HOME" ]]; then
  echo "error: FREESURFER_HOME must be set"
  exit 1
fi

# figure out where we want to install the data
if [[ -z "$TUTORIAL_DATA" ]]; then
  TUTORIAL_DATA=$FREESURFER_HOME/subjects/tutorial_data
fi
mkdir -p $TUTORIAL_DATA

# begin download
echo "Tutorial data will be downloaded into:"
echo "    $TUTORIAL_DATA"
read -p "Is this correct? [y/n] "

if ! [[ $REPLY =~ ^[Yy]$ ]]; then
  echo "Aborting..."
  exit 1
fi

rsync -ztrlv rsync://surfer.nmr.mgh.harvard.edu/pub/data/tutorial_data/ $TUTORIAL_DATA $extra_opts

echo
echo "Tutorial data succesfully downloaded"