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;
	}
}