Using Enhanced Ecommerce

[harm-less]

Hello,

Great library. I've been using Angulartics for some years already in combination with the GTM plugin.

I just discovered this repo as I guess I should use this from now on (from what I understand from this issue: #13). But even now I don't think I can use GTM Enhanced Ecommerce well with this package. The reason for this is that they specifically ask for a node/variable called ecommerce in the root of the pushed object. The way I go about it right now is to override the registerEventTrack method with this:

this.registerEventTrack = function(action, properties) {
	properties = properties || {};

	var knownProperties = ['event', 'category', 'label', 'noninteraction'];
	var unknownProperties = _.pick(angular.copy(properties), function(value, key) {
		return !_.contains(knownProperties, key);
	});

	// merge the normal object and perhaps custom values. Afterwards, get rit of all empty values
	that.push(_.pick(_.extend({
		event: properties.event || 'interaction',
		target: properties.category,
		action: action || undefined,
		'target-properties': properties.label,
		'interaction-type': properties.noninteraction
	}, unknownProperties), function(key) {
		return !(key === null || angular.isUndefined(key));
	}));
};

It allows me to add custom root nodes (more than just ecommerce) while keeping the original functionality from this plugin intact. It works, but it isn't handy/dry.

Is Enhanced Ecommerce support something which is ever considered? If not, I'd love to make a pr so it's supported in the provider.

[harm-less]

Actually, I've a whole setup that support a few of the Enhanced Ecommerce methods like impressions, clicks and a purchase (as that's only what we need at the moment).

One of the features is that the impressions are only triggered and pushed when they're in the viewport which I think is kind of neat.

Anyway, I have some plans of making this into a fully fully fledged plugin for Angulartics. Let me know if you're interested in this too because perhaps we can collaborate on this.