import type { HttpResponse } from "../contracts/typegen/http/response.ts";
import type { RequestContext } from "../contracts/typegen/http/request.ts";
import type { RouteDefinition } from "./router.ts";

export type RouteGuard = (context: RequestContext, route: RouteDefinition) => Promise<void | HttpResponse> | void | HttpResponse;

export class RoutePipeline {
	private readonly guards: RouteGuard[] = [];
	use(guard: RouteGuard): this { this.guards.push(guard); return this; }
	async run(context: RequestContext, route: RouteDefinition): Promise<HttpResponse | undefined> {
		for (const guard of this.guards) { const result = await guard(context, route); if (result) return result; }
		return undefined;
	}
}