#!/bin/bash
# Homelab Backup Script - Managed by Ansible
# Host: {{ inventory_hostname }}

set -euo pipefail

BACKUP_DIR="{{ backup_destination }}"
DATE=$(date +%Y%m%d_%H%M%S)
HOSTNAME="{{ inventory_hostname }}"
BACKUP_FILE="${BACKUP_DIR}/${HOSTNAME}_${DATE}.tar.gz"
RETENTION_DAYS="{{ backup_retention_days }}"

echo "=== Backup started at $(date) ==="
echo "Destination: ${BACKUP_FILE}"

# Pre-backup commands
{% for cmd in backup_pre_commands %}
echo "Running pre-backup: {{ cmd }}"
{{ cmd }}
{% endfor %}

# Create backup
tar czf "${BACKUP_FILE}" \
{% for source in backup_sources %}
  {{ source }} \
{% endfor %}
  2>/dev/null || true

BACKUP_SIZE=$(du -sh "${BACKUP_FILE}" | cut -f1)
echo "Backup created: ${BACKUP_FILE} (${BACKUP_SIZE})"

# Post-backup commands
{% for cmd in backup_post_commands %}
echo "Running post-backup: {{ cmd }}"
{{ cmd }}
{% endfor %}

# Cleanup old backups
echo "Removing backups older than ${RETENTION_DAYS} days..."
find "${BACKUP_DIR}" -name "${HOSTNAME}_*.tar.gz" -mtime +${RETENTION_DAYS} -delete

echo "=== Backup completed at $(date) ==="