import { type OpenAIError, type OpenAIErrorResponse } from '../types.js';
/**
* Maps a caught error from the Gemini API or auth flow to a standard
* OpenAI error object and a corresponding HTTP status code.
* @param error The caught unknown error.
* @returns An object containing the standard OpenAI error and a suggested status code.
*/
export function mapErrorToOpenAIError(error: unknown): {
openAIError: OpenAIErrorResponse;
statusCode: number;
} {
let message = 'An unknown error occurred.';
let type: OpenAIError['type'] = 'server_error';
let code: string | null = 'internal_error';
let statusCode = 500;
if (error instanceof Error) {
message = error.message;
// Check for specific error messages to determine a more accurate error code.
if (message.includes('Authentication failed')) {
statusCode = 401;
type = 'authentication_error';
code = 'invalid_api_key';
message =
'Invalid authentication credentials. Please check your GCP_SERVICE_ACCOUNT.';
} else if (
message.includes('429') ||
message.toLowerCase().includes('quota')
) {
statusCode = 429;
type = 'server_error';
code = 'rate_limit_exceeded';
message =
'You exceeded your current quota, please check your plan and billing details.';
} else if (
message.includes('400') ||
message.toLowerCase().includes('invalid')
) {
statusCode = 400;
type = 'invalid_request_error';
code = 'invalid_request';
} else if (message.includes('500')) {
statusCode = 500;
type = 'server_error';
code = 'server_error';
}
// More Gemini-specific error mappings can be added here if needed.
}
const openAIError: OpenAIErrorResponse = {
error: {
message,
type,
// We generally don't know the specific parameter that caused the error in this context.
param: null,
code,
},
};
return { openAIError, statusCode };
}
