/**
 * HTTP status failure with payload details.
 */
export class HttpStatus extends Error {
  public readonly status: number;
  public readonly detail: string;

  /**
   * Create an HTTP status error.
   * @param status - HTTP status code.
   * @param detail - Error detail message.
   */
  public constructor(status: number, detail: string) {
    super(detail);
    this.status = status;
    this.detail = detail;
  }
}

/**
 * Check whether a value is an HttpStatus instance.
 * @param value - Unknown error value.
 * @returns True if value is HttpStatus.
 */
export const isHttpStatus = (value: unknown): value is HttpStatus =>
  value instanceof HttpStatus;

/**
 * Create a not-found HttpStatus error.
 * @param detail - Error detail message.
 * @returns HttpStatus instance.
 */
export const notFound = (detail: string): HttpStatus => new HttpStatus(404, detail);

/**
 * Create a bad-request HttpStatus error.
 * @param detail - Error detail message.
 * @returns HttpStatus instance.
 */
export const badRequest = (detail: string): HttpStatus => new HttpStatus(400, detail);

/**
 * Create a service-unavailable HttpStatus error.
 * @param detail - Error detail message.
 * @returns HttpStatus instance.
 */
export const serviceUnavailable = (detail: string): HttpStatus => new HttpStatus(503, detail);