Shopify Checkout Additional Scripts

shopifyAdditionalScripts.html

<script>
window.dataLayer = window.dataLayer || [];
function _ready(fn) {
    if (document.readyState != 'loading') {
        fn();
    } else {
        document.addEventListener('DOMContentLoaded', fn);
    }
}
_ready(function() {

    /*
    * Module will be immediately executed
    */
	var totalDiscount = 0,
		transaction = {},
		customer = {};

	if ( isNewOrder() ) {
		transaction = setTransaction();
		customer = setCustomer();
		sendTransaction();
		sendCustomer();
		updateTrackingCode();
	} else {
		customer = setCustomer();
		sendCustomer();
		updateTrackingCode();
	}

	function isNewOrder() {
		{% if first_time_accessed %}
			return true;
		{% else %}
			return false;
		{% endif %}
	}

	function calculateDiscount() {
		{% for discount in order.discounts %}
        try {
            totalDiscount += {{ discount.savings | times: 0.01 }}
        } catch(e){}			
		{% endfor %}
	}

	function setTransaction() {
        return {
            transactionId: '{{ order.order_number }}',
            transactionTotal: {{ order.total_price | times: 0.01 }},
            transactionRevenue: {{ order.subtotal_price | times: 0.01 }},
            transactionCurrency: '{{ shop.currency }}' || 'USD',
            transactionShipping: {{ order.shipping_price | times: 0.01 }},
            transactionTax: {{ order.tax_price | times: 0.01 }},
            transactionDiscount: calculateDiscount(),
            transactionProducts: [
            {% for line_item in order.line_items %}
            {
                id: '{{ line_item.product_id }}',
                sku: '{{ line_item.sku }}',
                name: '{{ line_item.title }}',
                category: '{{ line_item.type }}',
                price: {{ line_item.line_price | times: 0.01 }},
                quantity: {{ line_item.quantity }}
            },
            {% endfor %}
            ]
        }
	}

	function setCustomer() {
        return {
            id: '{{ customer.id }}',
            name: '{{ customer.name }}',
            firstName: '{{ customer.first_name }}',
            lastName: '{{ customer.last_name }}',
            email: '{{ customer.email }}',
            phone: '{{ customer.default_address.phone }}',
            address: {  // uses the default address
                    street: '{{ customer.default_address.street }}',
                    city: '{{ customer.default_address.city }}',
                    state: '{{ customer.default_address.province }}',
                    stateCode: '{{ billing_address.province_code }}',
                    postalCode: '{{ customer.default_address.zip }}',
                    country: '{{ customer.default_address.country }}',
                    countryCode: '{{ customer.default_address.country_code }}'
            },
            totalSpent: '{{ customer.total_spent }}',
            allOrdersCount: '{{ customer.orders_count }}',
            allOrderIds: [{% for order in customer.orders %}'{{ order.id }}',{% endfor %}],
            tags: [{% for tag in customer.tags %} '{{ tag }}', {% endfor %}]
        }
	}

	function sendTransaction() {
		window.dataLayer.push({ event : 'transactionComplete', checkout: function() { return transaction } });
	}

	function sendCustomer() {
		window.dataLayer.push({ event : 'orderStatus', customer: function() { return customer } });
	}

	function updateTrackingCode() {
		try {
            var trackingUrl = document.querySelector('.tracking-info__number p a');
            if(trackingUrl !== null){
                var trackingCode = trackingUrl.href.split('=')[1];
                trackingUrl.href = 'https://auspost.com.au/parcels-mail/track.html#/track?id=' + trackingCode;				
            }
		} catch (e) {
			console.log('Order not yet fulfilled');
		}
	}
});
</script>