import { container_paths } from "./paths.ts";
import { exists } from "./utils.ts";

export type ContainerConfig = ReturnType<typeof new_container_config>;
export function new_container_config(name: string) {
	return {
		name,
		version: 0,
		redirects: [] as [number, number][],
	};
}

export async function load_container_config(name: string) {
	const config_path = container_paths(name).config;
	if (!exists(config_path)) return null;
	const content = await Deno.readTextFile(config_path);
	const read = JSON.parse(content);
	const default_ = new_container_config(name);
	if (read.version < default_.version) throw new Error("read conf version is outdated");
	return { ...default_, ...read };
}