getReview(id?: number) {
    this.previousReviewId = this.nextReviewId = 0;

    if (this.review.isCompleted) {
      this.updateReview(this.review)
        .then(() => {
          this.reviewService.getReview(id).subscribe(review => {
            if (this.fromReviewList && this.review.id != null) {
              this.fromReviewList = false;
            }
            this.review = null;
            this.review = this.mapReview(review);
            this.previousReviewId = review.previousId;
            this.nextReviewId = review.nextId;
          });
        });
    }
    else {
      this.reviewService.getReview(id).subscribe(review => {
        if (this.fromReviewList && this.review.id != null) {
          this.fromReviewList = false;
        }
        this.review = null;
        this.review = this.mapReview(review);
        this.previousReviewId = review.previousId;
        this.nextReviewId = review.nextId;
      });
    }
  }

  updateReview(review: Review): Promise<void> {
    return Promise<void>(resolve => {
      if (this.review && this.review.id) {
        this.reviewService.updateReview(this.review)
          .takeUntil(this.componetDestroyed$)
          .subscribe(() => {
            resolve(null);
          });
      }
    });
  }