#!/usr/bin/bash

#set -x
set -e

path="$1"

# First determine if we already have jobs already
n=$(squeue --me -lh | wc -l)

if [ "$n" -gt 1 ]; then
  echo "Too many jobs queued already" >&2
  exit 1
fi

if [ "$n" == 0 ]; then
  # No running jobs, so allocate a new job
  echo salloc -N 1 --constraint=dmaqdma --no-shell
fi

while [ "$n" != 1 ]; do
  sleep 2
  n=$(squeue --me -lh)
done

host=$(squeue -h -o %N)

echo "Switching to $host"

# Continue the execution there
ssh "$host" "$path/run-node.sh" "$path"