update event and property mappings

Author: Niall Brennan

src/main/java/com/segment/analytics/android/integrations/firebase/FirebaseIntegration.java

@@ -71,12 +71,12 @@ private static Map<String, String> createEventMap() {
     Map<String, String> EVENT_MAPPER = new HashMap<>();
     EVENT_MAPPER.put("Product Added", Event.ADD_TO_CART);
     EVENT_MAPPER.put("Checkout Started", Event.BEGIN_CHECKOUT);
-    EVENT_MAPPER.put("Order Completed", Event.ECOMMERCE_PURCHASE);
-    EVENT_MAPPER.put("Order Refunded", Event.PURCHASE_REFUND);
+    EVENT_MAPPER.put("Order Completed", Event.PURCHASE);
+    EVENT_MAPPER.put("Order Refunded", Event.REFUND);
     EVENT_MAPPER.put("Product Viewed", Event.VIEW_ITEM);
     EVENT_MAPPER.put("Product List Viewed", Event.VIEW_ITEM_LIST);
     EVENT_MAPPER.put("Payment Info Entered", Event.ADD_PAYMENT_INFO);
-    EVENT_MAPPER.put("Promotion Viewed", Event.PRESENT_OFFER);
+    EVENT_MAPPER.put("Promotion Viewed", Event.VIEW_PROMOTION);
     EVENT_MAPPER.put("Product Added to Wishlist", Event.ADD_TO_WISHLIST);
     EVENT_MAPPER.put("Product Shared", Event.SHARE);
     EVENT_MAPPER.put("Product Clicked", Event.SELECT_CONTENT);
@@ -100,6 +100,7 @@ private static Map<String, String> createPropertyMap() {
     PROPERTY_MAPPER.put("revenue", Param.VALUE);
     PROPERTY_MAPPER.put("order_id", Param.TRANSACTION_ID);
     PROPERTY_MAPPER.put("currency", Param.CURRENCY);
+    PROPERTY_MAPPER.put("products", Param.ITEMS);
     return PROPERTY_MAPPER;
   }
 

src/test/java/com/segment/analytics/android/integration/firebase/FirebaseTest.java

@@ -6,6 +6,7 @@
 
 import com.google.firebase.analytics.FirebaseAnalytics;
 import com.segment.analytics.Properties;
+import com.segment.analytics.ValueMap;
 import com.segment.analytics.android.integrations.firebase.FirebaseIntegration;
 import com.segment.analytics.integrations.IdentifyPayload;
 import com.segment.analytics.integrations.Logger;
@@ -119,6 +120,24 @@ public void trackWithProperties() {
         verify(firebase).logEvent(eq("foo"), bundleEq(expected));
     }
 
+    @Test
+    public void trackPurchaseWithProducts() {
+        Properties properties = new Properties()
+                .putValue("revenue", 100.0)
+                .putValue("currency", "USD");
+        Properties.Product product1 = new Properties.Product( "123",  "abc",  10.0);
+        properties.putProducts(product1);
+
+        integration.track(new TrackPayload.Builder().anonymousId("1234").properties(properties).event("Order Completed").build());
+
+        Bundle expected = new Bundle();
+        expected.putDouble("value", 100.0);
+        expected.putString("currency", "USD");
+        expected.putString("items", "[{id=123, sku=abc, price=10.0}]");
+
+        verify(firebase).logEvent(eq("purchase"), bundleEq(expected));
+    }
+
     @Test
     public void trackWithEventNameTransformation() {
         Properties properties = new Properties()