#!/usr/bin/env bash
# Copy the local backup tree to an already-mounted SMB share.
set -Eeuo pipefail
SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"
. "$SCRIPT_DIR/../lib/common.sh"
DRY_RUN=0; FORCE=0
while [[ $# -gt 0 ]]; do
  case "$1" in
    --dry-run) DRY_RUN=1 ;; --force) FORCE=1 ;;
    -h|--help) echo "Usage: ${0##*/} [--dry-run] [--force]"; exit 0 ;;
    *) die "Unknown option: $1" 2 ;;
  esac
  shift
done
if ! is_true "$SMB_ENABLED" && (( FORCE == 0 )); then log SKIP "SMB method is disabled"; exit 0; fi
[[ -n "$SMB_MOUNT" ]] || die "SMB_MOUNT is not configured"
require_command rsync
require_command mountpoint
[[ -d "$BACKUP_ROOT" ]] || die "Backup root not found: $BACKUP_ROOT"
[[ -d "$SMB_MOUNT" ]] || die "SMB mount does not exist: $SMB_MOUNT"
mountpoint -q "$SMB_MOUNT" || die "SMB path is not a mounted filesystem: $SMB_MOUNT"
destination="${SMB_MOUNT%/}"
is_true "$SMB_HOST_SUBDIR" && destination="$destination/$BACKUP_HOSTNAME"
(( DRY_RUN )) || mkdir -p "$destination"
read -r -a rsync_args <<<"$SMB_RSYNC_ARGS"
(( DRY_RUN )) && rsync_args+=(--dry-run)
log INFO "Copying backups to $destination"
rsync "${rsync_args[@]}" "$BACKUP_ROOT/" "$destination/"
log DONE "SMB backup method completed"