#!/bin/bash                                                                                         
set -eu

mkdir -p {{ hostname_base }}
cd {{ hostname_base }}

TYPE=""
if [ $# -ne 0 ]; then
    TYPE=$1
fi

TEST=$(python3 -c "print(int('$TYPE' in ['size_changed', 'no_high_data', 'minimal', ''])^1)")
if [ $TEST -ne 0 ]; then
    echo Bad Filter Option [$TYPE]
    exit 1
fi

dest=./
for x in backup-*; do
    test -d "$x" || continue
    dest="../$x" # relative to destination directory
done

target="backup-$(date '+%Y-%m-%d-%H-%M-%S')"
target_tmp="partial-$target"

mkdir "$target_tmp"

rsync \
    --verbose --itemize-changes --human-readable \
    --archive --acls --xattrs --hard-links --sparse --numeric-ids \
    --one-file-system \
    --link-dest="$dest" \
    --filter="merge ../rsync-filter-{{ hostname_base }}-${TYPE}.txt" \
    root@{{ hostname }}:/ \
    "$target_tmp"

RSYNC_SUCCESS=$? 

mv "$target_tmp" "$target"

CONTENT_TYPE="Content-Type: application/json"
ASYNC_ICINGA_ADDRESS="https://async-icinga.atlantishq.de/"
SERVICE="backup_{{ hostname_base }}"
TOKEN="{{ token }}"

if [ $RSYNC_SUCCESS -eq 0 ]; then
  {% if not backup_no_async_icinga %}
  curl -H "${CONTENT_TYPE}" -X POST "${ASYNC_ICINGA_ADDRESS}" -d \
    "{\"service\": \"${SERVICE}\", \"token\": \"${TOKEN}\", \"status\": \"OK\", \"info\": \"\"}"
  {% endif %}

  # if size changed was copied save new size #
  {% if not size_change_commands %}
      echo No sizes to notifiy
  {% endif %}
  {% for cmd in size_change_commands %}
      {{ cmd }}
  {% endfor %}
else
  {% if not backup_no_async_icinga %}
  curl -H "${CONTENT_TYPE}" -X POST "${ASYNC_ICINGA_ADDRESS}" -d \
    "{\"service\": \"${SERVICE}\", \"token\": \"${TOKEN}\", \"status\": \"CRITICAL\", \"info\": \"\"}"
  {% endif %}
fi

cd ..