Function handleValidationError

src/utils/model/validateModel.ts:95–149

(
  error: unknown,
  modelName: string,
)

}

function handleValidationError(
  error: unknown,
  modelName: string,
): { valid: boolean; error: string } {
  // NotFoundError (404) means the model doesn't exist
  if (error instanceof NotFoundError) {
    const fallback = get3PFallbackSuggestion(modelName)
    const suggestion = fallback ? `. Try '${fallback}' instead` : ''
    return {
      valid: false,
      error: `Model '${modelName}' not found${suggestion}`,
    }
  }

  // For other API errors, provide context-specific messages
  if (error instanceof APIError) {
    if (error instanceof AuthenticationError) {
      return {
        valid: false,
        error: 'Authentication failed. Please check your API credentials.',
      }
    }

    if (error instanceof APIConnectionError) {
      return {
        valid: false,
        error: 'Network error. Please check your internet connection.',
      }
    }

    // Check error body for model-specific errors
    const errorBody = error.error as unknown
    if (
      errorBody &&
      typeof errorBody === 'object' &&
      'type' in errorBody &&
      errorBody.type === 'not_found_error' &&
      'message' in errorBody &&
      typeof errorBody.message === 'string' &&
      errorBody.message.includes('model:')
    ) {
      return { valid: false, error: `Model '${modelName}' not found` }
    }

    // Generic API error
    return { valid: false, error: `API error: ${error.message}` }
  }

  // For unknown errors, be safe and reject
  const errorMessage = error instanceof Error ? error.message : String(error)
  return {
    valid: false,
    error: `Unable to validate model: ${errorMessage}`,
  }
}

// @[MODEL LAUNCH]: Add a fallback suggestion chain for the new model → previous version
/**