import { EventEmitter } from 'events';

const emitter = globalThis._eventEmitter || new EventEmitter();

if (!globalThis._eventEmitter) {
    globalThis._eventEmitter = emitter;
    globalThis._eventQueue = [];
    globalThis._eventTargets = 0;

    const origEmit = emitter.emit.bind(emitter);
    emitter.emit = function(eventName, ...args) {
        if (eventName === 'event' && globalThis._eventTargets === 0) {
            globalThis._eventQueue.push(args[0]);
            if (globalThis._eventQueue.length > 100) {
                globalThis._eventQueue.shift();
            }
        }
        return origEmit(eventName, ...args);
    };

    emitter.getQueue = function() {
        return globalThis._eventQueue.splice(0);
    };

    emitter.incrementTargets = function() {
        globalThis._eventTargets++;
    };

    emitter.decrementTargets = function() {
        globalThis._eventTargets = Math.max(0, globalThis._eventTargets - 1);
    };
}

export default emitter;