#!/usr/bin/env bash
# Online SQLite backup using the .backup API (safe while the bot is running).
# TODO: implement; outline below.
set -euo pipefail

# TODO: read DB_PATH from config or env
# TODO: BACKUP_DIR default /var/backups/mnemosyne, override via $MNEMOSYNE_BACKUP_DIR
# TODO: filename: mnemosyne-$(date +%Y%m%d-%H%M%S).db
# TODO: sqlite3 "$DB_PATH" ".backup '$BACKUP_DIR/$FILENAME'"
#       (uses the SQLite backup API — safe for concurrent access, no locks held)
# TODO: optionally prune backups older than N days

echo "TODO: backup.sh not yet implemented"