gemini-cli/packages/core/src/utils/httpErrors.ts

/**
 * @license
 * Copyright 2025 Google LLC
 * SPDX-License-Identifier: Apache-2.0
 */

export interface HttpError extends Error {
  status?: number;
}

/**
 * Extracts the HTTP status code from an error object.
 * @param error The error object.
 * @returns The HTTP status code, or undefined if not found.
 */
export function getErrorStatus(error: unknown): number | undefined {
  if (typeof error === 'object' && error !== null) {
    if ('status' in error && typeof error.status === 'number') {
      return error.status;
    }
    // Check for error.response.status (common in axios errors)
    if (
      'response' in error &&
      typeof (error as { response?: unknown }).response === 'object' &&
      (error as { response?: unknown }).response !== null
    ) {
      const response =
        // eslint-disable-next-line @typescript-eslint/no-unsafe-type-assertion
        (error as { response: { status?: unknown; headers?: unknown } })
          .response;
      if ('status' in response && typeof response.status === 'number') {
        return response.status;
      }
    }
  }
  return undefined;
}

export class ModelNotFoundError extends Error {
  code: number;
  constructor(message: string, code?: number) {
    super(message);
    this.name = 'ModelNotFoundError';
    this.code = code ? code : 404;
  }
}