search = (text$: Observable<string>) =>
    text$.pipe(
      debounceTime(300),
      distinctUntilChanged(),
      tap(() => (this.searching = true)),
      switchMap(term =>
        term.length < 2
          ? []
          : this.ordersSvc.search(term, this.commaList(this.fulfillment_status), this.commaList(this.payment_status)).pipe(
              tap(() => (this.searchFailed = false)),
              catchError(() => {
                this.searchFailed = true;
                return of([]);
              })
            )
      ),
      tap(() => (this.searching = false))
    )