import { Provider, UserAgent } from "@aws-sdk/types";
export interface UserAgentInputConfig {
  /**
   * The custom user agent header that would be appended to default one
   */
  customUserAgent?: string | UserAgent;
}
interface PreviouslyResolved {
  defaultUserAgentProvider: Provider<UserAgent>;
  runtime: string;
}
export interface UserAgentResolvedConfig {
  /**
   * The provider populating default tracking information to be sent with `user-agent`, `x-amz-user-agent` header.
   * @internal
   */
  defaultUserAgentProvider: Provider<UserAgent>;
  /**
   * The custom user agent header that would be appended to default one
   */
  customUserAgent?: UserAgent;
  /**
   * The runtime environment
   */
  runtime: string;
}
export function resolveUserAgentConfig<T>(
  input: T & PreviouslyResolved & UserAgentInputConfig
): T & UserAgentResolvedConfig {
  return {
    ...input,
    customUserAgent: typeof input.customUserAgent === "string" ? [[input.customUserAgent]] : input.customUserAgent,
  };
}