/** A key argument was passed but is `undefined`/`null`, empty, or not a string/number. */
export class InvalidKeyError extends TypeError {
  constructor(message: string) {
    super(message)
    this.name = 'InvalidKeyError'
  }
}

/** A remote storage could not be reached (network failure or 502/503/504). Writes may be retried later. */
export class StorageUnavailableError extends Error {
  constructor(message: string, options?: { cause?: unknown }) {
    super(message, options)
    this.name = 'StorageUnavailableError'
  }
}

/** A request was not authenticated (401) or not allowed for this caller (403). */
export class AuthError extends Error {
  constructor(
    readonly status: 401 | 403,
    message: string,
  ) {
    super(message)
    this.name = 'AuthError'
  }
}