/* eslint-disable @typescript-eslint/no-explicit-any */
type AnyFunction = (...args: any[]) => any;
type EventMap = Record<string, AnyFunction>;

export class EventTarget<Events extends EventMap> {
    private readonly _listeners = new Map<keyof Events, Set<AnyFunction>>();

    public addEventListener<K extends keyof Events>(event: K, cb: Events[K]): this {
        const set = this._listeners.get(event) || new Set();
        this._listeners.set(event, set);
        set.add(cb as AnyFunction);
        return this;
    }

    public removeEventListener<K extends keyof Events>(event: K, cb: Events[K]): this {
        this._listeners.get(event)?.delete(cb as AnyFunction);
        return this;
    }

    public dispatchEvent<K extends keyof Events>(event: K, ...data: Parameters<Events[K]>): unknown {
        let ok = true;
        for (const cb of (this._listeners.get(event) || [])) {
            ok = (cb(...data) !== false) && ok;
        }

        return ok;
    }

    public unbindAllListeners(): void {
        this._listeners.clear();
    }

    // Let's also support on, off and emit like node
    /* eslint-disable no-invalid-this */
    public on = this.addEventListener;
    public off = this.removeEventListener;
    public emit = this.dispatchEvent;
}