#!/usr/bin/env bash

set -eu
set -o pipefail

TIMESTAMP=$(date +%Y%m%d_%H%M%S)
BACKUP_FILE="outline_postgres_${TIMESTAMP}.sql.gz"

echo "Outline: backing up PostgreSQL database"

docker compose --file "{{ base_dir }}/docker-compose.yml" exec \
    outline_postgres \
    pg_dump \
        -U "{{ outline_postgres_user }}" \
        "{{ outline_postgres_database }}" \
    | gzip > "{{ postgres_backups_dir }}/${BACKUP_FILE}"

echo "Outline: PostgreSQL backup saved to {{ postgres_backups_dir }}/${BACKUP_FILE}"

echo "Outline: removing old backups"

# Keep only the 3 most recent backups
keep-files.py "{{ postgres_backups_dir }}" --keep 3

echo "Outline: backup completed successfully."