import { defineMetadata, getMetadata } from "../core/metadata.ts";

const KEY = "muddle:render-route";

export interface CollectionRenderRoute {
	collection: string;
	path: string;
}

export type RenderRouteSource = string | string[] | CollectionRenderRoute;

export function routeFolder(...segments: string[]): string {
	return `/${segments
		.filter(Boolean)
		.map((segment) => segment.replace(/^\/+|\/+$/g, ""))
		.join("/")}`;
}

export function collectionRoute(
	collection: string,
	path: string,
): CollectionRenderRoute {
	return { collection, path };
}

export function RenderRoute(routes: RenderRouteSource[]): MethodDecorator {
	return (target, propertyKey) =>
		defineMetadata(KEY, routes, target, propertyKey);
}

export function getRenderRoutes(
	target: object,
	propertyKey: string,
): RenderRouteSource[] {
	return (
		(getMetadata(KEY, target, propertyKey) as
			| RenderRouteSource[]
			| undefined) ?? []
	);
}