define([
	'leaflet',
	'leaflet.markercluster'
], function(L) {

	// GeoJSON feature grouping
	function returnMarker(feature, latlng) {
		var marker = new L.CircleMarker(latlng,{
			color: 'none',
			fillColor: 'rgba(110, 204, 57, 0.6)',
			fillOpacity: '1',
		});
		// bindTooltip was introduced in LeafletJS 1.0.
		try {
			marker.bindTooltip(
				feature.properties.name
			);
		} catch (e) {
			if (console) {
				console.warn('tooltip skipped (using an old Leaflet?)');
			}
		};
		return marker;
	};

	var place = L.geoJson([], {
		pointToLayer: returnMarker
	});

	return function(data) {
		place.addData(data);
		return L.markerClusterGroup().addLayer(place);
	};
});