(function () {

	function addLabel(target, text) {
		const div = document.createElement('div');
		div.id = target.id + '-label';
		div.className = 'nif-ad-label';
		div.style.font = '12px Arial, Calibri';
		div.style.color = '#595959';
		div.style.width = '100%';
		div.style.textAlign = 'center';
		div.style.margin = '5px 0';
		div.innerHTML = text;
		target.prepend(div);
	}

	function nifGetAppropriateSizes(targetId) {
		const target = document.getElementById(targetId);
		// List of target IDs that should exclude the 980x600 size
		const excludeLargeAdTargets = ['nif-bunnbanner', 'nif-toppbanner']; // Add more IDs as needed
		const viewportWidth = target.parentElement.offsetWidth;
		let allSizes = [
			[980, [[980, 300], [980, 600]]],
			[580, [[580, 400]]],
			[320, [[320, 250], [320, 400]]]
		];
		if (excludeLargeAdTargets.includes(targetId)) {
			allSizes = allSizes.filter(size => !(size[0] === 980 && size[1] === 600));
		}
		return allSizes.find(size => size[0] <= viewportWidth)[1];
	}


	function nifCreateAdRequest(adConfigs, adOptions) {
		const adUnits = [];
		for (const placement of adConfigs) {
			try {
				const target = document.getElementById(placement[0]);
				if (target) {
					adUnits.push({
						targetId: placement[0] + '-child',
						auId: placement[1],
						dimensions: nifGetAppropriateSizes(placement[0]),
						onImpressionResponse: function (data) {
							// Check if an ad was actually delivered
							if (data.ads[0]) {
								if (adOptions && adOptions.adLabel) {
									addLabel(target, adOptions.adLabel);
								}
							}
						}
					});
					target.style.width = "100%";
					target.style.display = 'flex';
					target.style.flexDirection = 'column';
					target.style.justifyContent = 'center';
					const div = document.createElement('div');
					div.id = placement[0] + '-child';
					div.style.display = "none";
					target.appendChild(div);
				}
			} catch (e) {
				console.log("can't generate request for" + placement[0]);
			}
		}
		return adUnits
	}

	window.nifRequestAds = function (adConfigs, adOptions) {
		adn.calls.push(function () {
			const adUnits = nifCreateAdRequest(adConfigs, adOptions);
			adn.request({
				network: '140f2f',
				adUnits: adUnits
			});
		});

	}

	var script = document.createElement('script');
	script.type = 'text/javascript';
	script.src = 'https://cdn.adnuntius.com/adn.js';
	script.async = true;
	document.head.appendChild(script);

})()