trackOrder function doesn't track ecommerce events

[miletliyusuf]

Hello 👋 ,

As described in the title, when you try to trigger event for ecommerce over trackOrder function it doesn't triggered (probably)because of below reason by the API description.

API: https://developer.matomo.org/api-reference/tracking-api#optional-ecommerce-info

you must set &idgoal=0 in the request to track an ecommerce interaction: cart update or an ecommerce order.

public func trackOrder(id: String, items: [OrderItem], revenue: Float, subTotal: Float? = nil, tax: Float? = nil, shippingCost: Float? = nil, discount: Float? = nil) {
        let lastOrderDate = matomoUserDefaults.lastOrder

        let event = Event(tracker: self, action: [], orderId: id, orderItems: items, orderRevenue: revenue, orderSubTotal: subTotal, orderTax: tax, orderShippingCost: shippingCost, orderDiscount: discount, orderLastDate: lastOrderDate, isCustomAction: false)
        queue(event: event)
        
        matomoUserDefaults.lastOrder = Date()
    }

Above the trackOrder function creates the Event but, by default, the goal id is nil and there is no way to set it by this function.

For the workaround: I've set custom Event for tracking ecommerce event something like below:

        let eCommerceEvent = Event(tracker: matomoTracker, action: [], goalId: 0, orderId: "\(orderID)",
                                   orderRevenue: revenue, orderLastDate: Date(), isCustomAction: false)
        matomoTracker.track(eCommerceEvent)

I hope, the workaround is fine? or do you folks have any other suggestion ?