public void enhancedEcommerce()

in analytics/app/src/main/java/com/google/firebase/example/analytics/MainActivity.java [35:223]
126 lines of code
1 McCabe index (conditional complexity)

    public void enhancedEcommerce() {
        FirebaseAnalytics analytics = FirebaseAnalytics.getInstance(this);

        // [START create_items]
        Bundle itemJeggings = new Bundle();
        itemJeggings.putString(FirebaseAnalytics.Param.ITEM_ID, "SKU_123");
        itemJeggings.putString(FirebaseAnalytics.Param.ITEM_NAME, "jeggings");
        itemJeggings.putString(FirebaseAnalytics.Param.ITEM_CATEGORY, "pants");
        itemJeggings.putString(FirebaseAnalytics.Param.ITEM_VARIANT, "black");
        itemJeggings.putString(FirebaseAnalytics.Param.ITEM_BRAND, "Google");
        itemJeggings.putDouble(FirebaseAnalytics.Param.PRICE, 9.99);

        Bundle itemBoots = new Bundle();
        itemBoots.putString(FirebaseAnalytics.Param.ITEM_ID, "SKU_456");
        itemBoots.putString(FirebaseAnalytics.Param.ITEM_NAME, "boots");
        itemBoots.putString(FirebaseAnalytics.Param.ITEM_CATEGORY, "shoes");
        itemBoots.putString(FirebaseAnalytics.Param.ITEM_VARIANT, "brown");
        itemBoots.putString(FirebaseAnalytics.Param.ITEM_BRAND, "Google");
        itemBoots.putDouble(FirebaseAnalytics.Param.PRICE, 24.99);

        Bundle itemSocks = new Bundle();
        itemSocks.putString(FirebaseAnalytics.Param.ITEM_ID, "SKU_789");
        itemSocks.putString(FirebaseAnalytics.Param.ITEM_NAME, "ankle_socks");
        itemSocks.putString(FirebaseAnalytics.Param.ITEM_CATEGORY, "socks");
        itemSocks.putString(FirebaseAnalytics.Param.ITEM_VARIANT, "red");
        itemSocks.putString(FirebaseAnalytics.Param.ITEM_BRAND, "Google");
        itemSocks.putDouble(FirebaseAnalytics.Param.PRICE, 5.99);
        // [END create_items]

        // [START view_item_list]
        Bundle itemJeggingsWithIndex = new Bundle(itemJeggings);
        itemJeggingsWithIndex.putLong(FirebaseAnalytics.Param.INDEX, 1);

        Bundle itemBootsWithIndex = new Bundle(itemBoots);
        itemBootsWithIndex.putLong(FirebaseAnalytics.Param.INDEX, 2);

        Bundle itemSocksWithIndex = new Bundle(itemSocks);
        itemSocksWithIndex.putLong(FirebaseAnalytics.Param.INDEX, 3);

        Bundle viewItemListParams = new Bundle();
        viewItemListParams.putString(FirebaseAnalytics.Param.ITEM_LIST_ID, "L001");
        viewItemListParams.putString(FirebaseAnalytics.Param.ITEM_LIST_NAME, "Related products");
        viewItemListParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
                new Parcelable[]{ itemJeggingsWithIndex, itemBootsWithIndex, itemSocksWithIndex });
        analytics.logEvent(FirebaseAnalytics.Event.VIEW_ITEM_LIST, viewItemListParams);
        // [END view_item_list]

        // [START select_item]
        Bundle selectItemParams = new Bundle();
        selectItemParams.putString(FirebaseAnalytics.Param.ITEM_LIST_ID, "L001");
        selectItemParams.putString(FirebaseAnalytics.Param.ITEM_LIST_NAME, "Related products");
        selectItemParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
                new Parcelable[]{ itemJeggings });
        analytics.logEvent(FirebaseAnalytics.Event.SELECT_ITEM, selectItemParams);
        // [END select_item]

        // [START view_product_details]
        Bundle viewItemParams = new Bundle();
        viewItemParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
        viewItemParams.putDouble(FirebaseAnalytics.Param.VALUE, 9.99);
        viewItemParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
                new Parcelable[] { itemJeggings });

        analytics.logEvent(FirebaseAnalytics.Event.VIEW_ITEM, viewItemParams);
        // [END view_product_details]

        // [START add_to_cart_wishlist]
        Bundle itemJeggingsWishlist = new Bundle(itemJeggings);
        itemJeggingsWishlist.putLong(FirebaseAnalytics.Param.QUANTITY, 2);

        Bundle addToWishlistParams = new Bundle();
        addToWishlistParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
        addToWishlistParams.putDouble(FirebaseAnalytics.Param.VALUE, 2 * 9.99);
        addToWishlistParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
                new Parcelable[]{ itemJeggingsWishlist });

        analytics.logEvent(FirebaseAnalytics.Event.ADD_TO_WISHLIST, addToWishlistParams);
        // [END add_to_cart_wishlist]

        // [START view_cart]
        Bundle itemJeggingsCart = new Bundle(itemJeggings);
        itemJeggingsCart.putLong(FirebaseAnalytics.Param.QUANTITY, 2);

        Bundle itemBootsCart = new Bundle(itemBoots);
        itemBootsCart.putLong(FirebaseAnalytics.Param.QUANTITY, 1);

        Bundle viewCartParams = new Bundle();
        viewCartParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
        viewCartParams.putDouble(FirebaseAnalytics.Param.VALUE, (2 * 9.99) + (1 * 24.99));
        viewCartParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
                new Parcelable[]{ itemJeggingsCart, itemBootsCart });

        analytics.logEvent(FirebaseAnalytics.Event.VIEW_CART, viewCartParams);
        // [END view_cart]

        // [START remove_from_cart]
        Bundle removeCartParams = new Bundle();
        removeCartParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
        removeCartParams.putDouble(FirebaseAnalytics.Param.VALUE, (1 * 24.99));
        removeCartParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
                new Parcelable[]{ itemBootsCart });

        analytics.logEvent(FirebaseAnalytics.Event.REMOVE_FROM_CART, removeCartParams);
        // [END remove_from_cart]

        // [START start_checkout]
        Bundle beginCheckoutParams = new Bundle();
        beginCheckoutParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
        beginCheckoutParams.putDouble(FirebaseAnalytics.Param.VALUE, 14.98);
        beginCheckoutParams.putString(FirebaseAnalytics.Param.COUPON, "SUMMER_FUN");
        beginCheckoutParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
                new Parcelable[]{ itemJeggingsCart });

        analytics.logEvent(FirebaseAnalytics.Event.BEGIN_CHECKOUT, beginCheckoutParams);
        // [END start_checkout]

        // [START add_shipping]
        Bundle addShippingParams = new Bundle();
        addShippingParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
        addShippingParams.putDouble(FirebaseAnalytics.Param.VALUE, 14.98);
        addShippingParams.putString(FirebaseAnalytics.Param.COUPON, "SUMMER_FUN");
        addShippingParams.putString(FirebaseAnalytics.Param.SHIPPING_TIER, "Ground");
        addShippingParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
                new Parcelable[]{ itemJeggingsCart });

        analytics.logEvent(FirebaseAnalytics.Event.ADD_SHIPPING_INFO, addShippingParams);
        // [END add_shipping]

        // [START add_payment]
        Bundle addPaymentParams = new Bundle();
        addPaymentParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
        addPaymentParams.putDouble(FirebaseAnalytics.Param.VALUE, 14.98);
        addPaymentParams.putString(FirebaseAnalytics.Param.COUPON, "SUMMER_FUN");
        addPaymentParams.putString(FirebaseAnalytics.Param.PAYMENT_TYPE, "Visa");
        addPaymentParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
                new Parcelable[]{ itemJeggingsCart });

        analytics.logEvent(FirebaseAnalytics.Event.ADD_PAYMENT_INFO, addPaymentParams);
        // [END add_payment]

        // [START log_purchase]
        Bundle purchaseParams = new Bundle();
        purchaseParams.putString(FirebaseAnalytics.Param.TRANSACTION_ID, "T12345");
        purchaseParams.putString(FirebaseAnalytics.Param.AFFILIATION, "Google Store");
        purchaseParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
        purchaseParams.putDouble(FirebaseAnalytics.Param.VALUE, 14.98);
        purchaseParams.putDouble(FirebaseAnalytics.Param.TAX, 2.58);
        purchaseParams.putDouble(FirebaseAnalytics.Param.SHIPPING, 5.34);
        purchaseParams.putString(FirebaseAnalytics.Param.COUPON, "SUMMER_FUN");
        purchaseParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
                new Parcelable[]{ itemJeggingsCart });
        
        analytics.logEvent(FirebaseAnalytics.Event.PURCHASE, purchaseParams);
        // [END log_purchase]

        // [START log_refund]
        Bundle refundParams = new Bundle();
        refundParams.putString(FirebaseAnalytics.Param.TRANSACTION_ID, "T12345");
        refundParams.putString(FirebaseAnalytics.Param.AFFILIATION, "Google Store");
        refundParams.putString(FirebaseAnalytics.Param.CURRENCY, "USD");
        refundParams.putDouble(FirebaseAnalytics.Param.VALUE, 9.99);

        // (Optional) for partial refunds, define the item ID and quantity of refunded items
        refundParams.putString(FirebaseAnalytics.Param.ITEM_ID, "SKU_123");
        refundParams.putLong(FirebaseAnalytics.Param.QUANTITY, 1);

        refundParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
                new Parcelable[]{ itemJeggings });

        analytics.logEvent(FirebaseAnalytics.Event.REFUND, refundParams);
        // [END log_refund]

        // [START apply_promo]
        Bundle promoParams = new Bundle();
        promoParams.putString(FirebaseAnalytics.Param.PROMOTION_ID, "SUMMER_FUN");
        promoParams.putString(FirebaseAnalytics.Param.PROMOTION_NAME, "Summer Sale");
        promoParams.putString(FirebaseAnalytics.Param.CREATIVE_NAME, "summer2020_promo.jpg");
        promoParams.putString(FirebaseAnalytics.Param.CREATIVE_SLOT, "featured_app_1");
        promoParams.putString(FirebaseAnalytics.Param.LOCATION_ID, "HERO_BANNER");
        promoParams.putParcelableArray(FirebaseAnalytics.Param.ITEMS,
                new Parcelable[]{ itemJeggings });

        // Promotion displayed
        analytics.logEvent(FirebaseAnalytics.Event.VIEW_PROMOTION, promoParams);

        // Promotion selected
        analytics.logEvent(FirebaseAnalytics.Event.SELECT_PROMOTION, promoParams);
        // [END apply_promo]
    }