export type Unsub = (() => void) | Unsubs;

export class Unsubs {
    private fns: Unsub[] = [];

    public add(fn: Unsub): this {
        this.fns.push(fn);
        return this;
    }

    public unsub(): this {
        this.fns.forEach((unsub) => {
            if (typeof unsub === "function") {
                unsub();
            } else {
                unsub.unsub();
            }
        });
        return this;
    }

    public clear(): this {
        this.fns = [];
        return this;
    }
}