#!/bin/bash

set -euo pipefail

now=$(date +"%Y%m%d%H%M")

if ! mountpoint -q {{ hetzner_raid_mount }}
then
    echo "[${now}] {{ hetzner_raid_mount }} not mounted, refusing to sync"
    exit 1
fi

sync_path() {
    local src=$1
    local dest=$2

    if [ -z "$(ls -A ${src} 2>/dev/null)" ]
    then
        echo "[${now}] ${src} empty, refusing to sync"
        exit 1
    fi

    echo "[${now}] syncing ${src} to ${dest}"
    sudo -u {{ user }} rsync -a --delete --partial \
        -e "ssh -p {{ hetzner_port }} -i {{ user_home }}/.ssh/id_ed25519 -o UserKnownHostsFile={{ user_home }}/.ssh/known_hosts -o StrictHostKeyChecking=yes" \
        ${src}/ \
        {{ hetzner_user }}@{{ hetzner_host }}:${dest}/
}

echo "[${now}] offsite sync start"
{% for path in hetzner_paths %}
sync_path {{ path.src }} {{ path.dest }}
{% endfor %}
echo "[${now}] offsite sync done"