import { ReloadableURI } from "@effect/core/io/Reloadable/definition"

export class ReloadableInternal<Service> implements Reloadable<Service> {
  readonly [ReloadableURI] = {
    _Service: (_: never) => _
  }

  constructor(
    readonly scopedRef: ScopedRef<Service>,
    readonly reload: Effect<never, unknown, void>
  ) {}

  get get(): Effect<never, never, Service> {
    return this.scopedRef.get
  }

  get reloadFork(): Effect<never, never, void> {
    return this.reload.ignoreLogged.forkDaemon.unit
  }
}

const tagMap: IterableWeakMap<Tag<any>, Tag<any>> = IterableWeakMap([])

/**
 * @tsplus getter Tag reloadable
 */
export function reloadableTag<S>(tag: Tag<S>): Tag<Reloadable<S>> {
  const already = tagMap.getMaybe(tag)
  if (already.isSome()) {
    return already.value
  }
  const newTag = Tag<Reloadable<S>>()
  tagMap.set(tag, newTag)
  return newTag
}