import grabDBDir from "../utils/grab-db-dir";
import fs from "fs";
function stripBackupExtension(name) {
    const lower = name.toLowerCase();
    if (lower.endsWith(".tar.gz"))
        return name.slice(0, -7);
    if (lower.endsWith(".tgz"))
        return name.slice(0, -4);
    if (lower.endsWith(".tar"))
        return name.slice(0, -4);
    if (lower.endsWith(".zip"))
        return name.slice(0, -4);
    if (lower.endsWith(".sql"))
        return name.slice(0, -4);
    return name;
}
function backupTimestamp(name) {
    const base = stripBackupExtension(name);
    const ts = Number(base.split("-").pop());
    return Number.isFinite(ts) ? ts : 0;
}
export default function grabSortedBackups({ config }) {
    const { backup_dir } = grabDBDir({ config });
    if (!fs.existsSync(backup_dir)) {
        return [];
    }
    const backups = fs.readdirSync(backup_dir);
    /**
     * Order Backups. Most recent first.
     */
    return backups.sort((a, b) => backupTimestamp(b) - backupTimestamp(a));
}