#!/usr/bin/env sh
# PostgreSQL backup of the GTI Fiscal Hub (custom format, restorable with restore.sh). Run from deploy/hub.
#   ./backup.sh            -> ./backups/gti_fiscal_YYYYmmdd_HHMMSS.dump  (last 14 kept)
set -eu
COMPOSE="docker compose -f docker-compose.prod.yml --env-file .env"
DIR="${BACKUP_DIR:-./backups}"
mkdir -p "$DIR"
STAMP="$(date +%Y%m%d_%H%M%S)"
FILE="gti_fiscal_${STAMP}.dump"
$COMPOSE exec -T postgres pg_dump -U gti -d gti_fiscal -Fc -f "/backups/${FILE}"
[ -s "$DIR/$FILE" ] || { echo "backup empty or missing: $DIR/$FILE" >&2; exit 1; }
ls -1t "$DIR"/gti_fiscal_*.dump | tail -n +15 | xargs -r rm -f
echo "backup ok: $DIR/$FILE"