#!/usr/bin/env bash
set -euo pipefail

if [[ -z "${DATABASE_URL:-}" ]]; then
  echo "DATABASE_URL is required"
  exit 1
fi

BACKUP_DIR="${BACKUP_DIR:-./backups/postgres}"
RETENTION_DAYS="${RETENTION_DAYS:-7}"
TIMESTAMP="$(date -u +%Y%m%dT%H%M%SZ)"

mkdir -p "$BACKUP_DIR"

echo "Creating logical backup..."
pg_dump "$DATABASE_URL" --format=custom --file="${BACKUP_DIR}/fiddy_${TIMESTAMP}.dump"

echo "Creating globals backup..."
pg_dumpall "$DATABASE_URL" --globals-only > "${BACKUP_DIR}/fiddy_globals_${TIMESTAMP}.sql"

echo "Pruning backups older than ${RETENTION_DAYS} days..."
find "$BACKUP_DIR" -type f -name "fiddy_*" -mtime "+${RETENTION_DAYS}" -delete

echo "Backup complete: ${BACKUP_DIR}"