import { Federation } from "@fedify/fedify/federation";

//#region src/index.d.ts
/**
* A factory function to create context data for the {@link Federation} object.
*
* @template TContextData A type of the context data for the {@link Federation}
*                        object.
* @template TKoaContext A type of the Koa context.
* @param context A Koa context object.
* @returns A context data for the {@link Federation} object.
* @since 1.9.0
*/
type ContextDataFactory<TContextData, TKoaContext = any> = (context: TKoaContext) => TContextData | Promise<TContextData>;
/**
* Create a Koa middleware to integrate with the {@link Federation} object.
*
* @template TContextData A type of the context data for the {@link Federation}
*                        object.
* @template TKoaContext A type of the Koa context.
* @param federation A {@link Federation} object to integrate with Koa.
* @param contextDataFactory A function to create a context data for the
*                           {@link Federation} object.
* @returns A Koa middleware.
* @since 1.9.0
*/
declare function createMiddleware<TContextData, TKoaContext = any>(federation: Federation<TContextData>, contextDataFactory: ContextDataFactory<TContextData, TKoaContext>): (ctx: TKoaContext, next: () => Promise<void>) => Promise<void>;
//#endregion
export { ContextDataFactory, createMiddleware };