import {Awaitable} from './types.js'

export type LifecycleCallback = () => Awaitable<unknown>

export type LifecycleAware = {
	adoptLifecycle(lifecycle: Lifecycle): void;
}

export class Lifecycle {
	private onCloses: LifecycleCallback[] = []

	onClose(closure: LifecycleCallback): void {
		this.onCloses.push(closure)
	}

	close() {
		this.onCloses.map(x => x())
	}
}