#!/bin/sh

GOTIFYURL="$GOTIFYHOST/message?token=$GOTIFYTOKEN"

echo "$(date +"%Y-%m-%dT%T") - Starting backup"

restic backup           \
    --verbose		\
    $SOURCEDIR

RESTIC_BACKUP_RETURN=$?

if [ $RESTIC_BACKUP_RETURN -eq 0 ]; then
    MSG_BACKUP_SUCCESS="Backup successful"
    echo "$(date +"%Y-%m-%dT%T") - $MSG_BACKUP_SUCCESS"
    curl -s -X POST "$GOTIFYURL" -F "title=$GOTIFYTOPIC" -F "message=$MSG_BACKUP_SUCCESS"
else
    MSG_BACKUP_ERR="Backup failed with error code $RESTIC_BACKUP_RETURN"
    echo "$(date +"%Y-%m-%dT%T") - MSG_BACKUP_ERR"
    curl -s -X POST "$GOTIFYURL" -F "title=$GOTIFYTOPIC" -F "message=$MSG_BACKUP_ERR"
    exit $RESTIC_BACKUP_RETURN
fi


MSG_PURGE_START="$(date +"%Y-%m-%dT%T") - Removing old backups"
echo $MSG_PURGE_START

restic forget --keep-last $KEEPLAST --prune
RESTIC_PURGE_RETURN=$?

if [ $RESTIC_PURGE_RETURN -eq 0 ]; then
    echo "$(date +"%Y-%m-%dT%T") - Purge successful"
else
    MSG_PURGE_ERR="Purge failed with error code $MSG_PURGE_ERR"
    echo "$(date +"%Y-%m-%dT%T") - $MSG_PURGE_ERR"
    curl -s -X POST "$GOTIFYURL" -F "title=$GOTIFYTOPIC" -F "message=$MSG_PURGE_ERR"
    exit $RESTIC_PURGE_RETURN
fi

echo "$(date +"%Y-%m-%dT%T") - Going back to sleep..."