(function () {
	const dl = (window.top && window.top.dataLayer) || (window.dataLayer = window.dataLayer || []);
	if (dl.__primisListening) return;
	dl.__primisListening = true;

	const originalPush = dl.push.bind(dl);
	const listeners = new Set();

	dl.push = function (...args) {
		for (const obj of args) {
			if (obj && typeof obj === 'object' && typeof obj.event === 'string') {
				listeners.forEach(fn => { try { fn(obj.event, obj); } catch (_) {} });
			}
		}
		return originalPush(...args);
	};

	function onceEvent(eventName) {
		return new Promise((resolve, reject) => {
			let to;
			const handler = (ev) => {
				if (ev === eventName) {
					listeners.delete(handler);
					if (to) clearTimeout(to);
					resolve();
				}
			};
			listeners.add(handler);
		});
	}

	function loadPlayer() {
		const s = document.createElement('script');
		s.src = 'https://live.primis.tech/live/liveView.php?s=120768';
		(document.body || document.documentElement).appendChild(s);
		listeners.clear();
	}

	(async () => {
		await onceEvent('site-crossword-start');

		let adStartTimeoutId;
		const AD_START_TIMEOUT_MS = 30000;
		const adStartTimeout = new Promise(resolve => {
			adStartTimeoutId = setTimeout(() => resolve('timeout'), AD_START_TIMEOUT_MS);
		});
		const adStartResult = await Promise.race([
			onceEvent('video-ad-start'),
			adStartTimeout
		]);

		if (adStartResult === 'timeout') {
			return loadPlayer();
		}
		clearTimeout(adStartTimeoutId);

		await Promise.race([
			onceEvent('video-ad-complete'),
			onceEvent('video-ad-skip')
		]);
		loadPlayer();
	})().catch(() => {
		listeners.clear();
	});
})();