#!/usr/bin/env bash
# backup.sh [--pull] [--pull-all] [--no-offsite]
# Runs deploy/bin/remote/backup-run.sh on the data node (same script the systemd timer runs):
#   pg_dump -Fc → /srv/dci/backups/pg/dci-<stamp>.dump
#   config/connectors + parser sources + git rev → /srv/dci/backups/config/dci-config-<stamp>.tar.zst
#   ClickHouse BACKUP DATABASE dci → /srv/dci/backups/clickhouse/dci-ch-<stamp>.zip (best effort)
#   mc mirror dci-raw → /srv/dci/backups/minio/dci-raw
#   retention 14 daily + 8 weekly, then rsync /srv/dci/backups → ubuntu@10.68.0.2:/srv/dci-backups (private link)
# --pull      also copy the latest pg dump + config tarball to ~/Backups/dci/ on this laptop
# --pull-all  copy the whole backups dir (including the MinIO mirror — can be large)
source "$(dirname "${BASH_SOURCE[0]}")/lib.sh"
pull=0; pull_all=0; offsite=1
for a in "$@"; do
  case "$a" in --pull) pull=1 ;; --pull-all) pull=1; pull_all=1 ;; --no-offsite) offsite=0 ;; *) die "unknown flag $a" ;; esac
done

log "backup on $(host_for data)"
remote data "DCI_OFFSITE=$offsite $REMOTE_DIR/deploy/bin/remote/backup-run.sh"

if [[ $pull == 1 ]]; then
  dest="$HOME/Backups/dci"; mkdir -p "$dest"
  if [[ $pull_all == 1 ]]; then
    log "pull everything → $dest"
    rsync -az --info=stats1 -e "ssh ${SSH_OPTS[*]}" "$(host_for data):$BACKUP_DIR/" "$dest/"
  else
    log "pull latest pg dump + config → $dest"
    latest_pg="$(remote data "ls -1t $BACKUP_DIR/pg/*.dump | head -1")"
    latest_cfg="$(remote data "ls -1t $BACKUP_DIR/config/*.tar.zst | head -1")"
    rsync -az --info=stats1 -e "ssh ${SSH_OPTS[*]}" "$(host_for data):$latest_pg" "$(host_for data):$latest_cfg" "$dest/"
  fi
  ok "pulled: $(ls -1t "$dest" | head -3 | tr '\n' ' ')"
fi