#!/bin/bash

# Configuration
BACKUP_USER="your_remote_user"                # Remote SSH username
BACKUP_HOST="your_remote_host"                # Remote SSH server
BACKUP_PATH="/path/to/remote/backup/folder"   # Remote backup folder
BORG_PASSPHRASE="your_encryption_password"    # Encryption password (in plain text)
BACKUP_NAME="backup-$(date +'%Y-%m-%d')"      # Name of the backup archive
BACKUP_REPO="ssh://$BACKUP_USER@$BACKUP_HOST/$BACKUP_PATH" # Borg repository location

# Environment variable for Borg encryption
export BORG_PASSPHRASE

# Run Borg backup
echo "Starting Borg backup..."
borg create --verbose --filter AME --list --stats --compression lz4 \
    $BACKUP_REPO::$BACKUP_NAME \
    /etc \
    /var/vol

# Capture Borg exit status
BORG_EXIT=$?

# Check if the backup succeeded or was partially successful (exit code 0 or 1)
if [ $BORG_EXIT -eq 0 ] || [ $BORG_EXIT -eq 1 ]; then
    echo "Backup succeeded (with return code $BORG_EXIT)!"
else
    echo "Backup failed (with return code $BORG_EXIT)!"
    exit 1
fi

# Prune old backups (keep last 7 daily, 4 weekly, and 6 monthly backups)
borg prune --list $BACKUP_REPO --keep-daily=7 --keep-weekly=4 --keep-monthly=6

# Unset the encryption password for security
unset BORG_PASSPHRASE