Removes ability to add configurable items to cart until options are chosen

packages/pwa-buildpack/src/WebpackTools/__tests__/__fixtures__/queries/getProductDetail.graphql

@@ -1,6 +1,7 @@
 query productDetail($urlKey: String, $onServer: Boolean!) {
     productDetail: products(filter: { url_key: { eq: $urlKey } }) {
         items {
+            __typename
             sku
             name
             price {

packages/pwa-buildpack/src/WebpackTools/__tests__/__snapshots__/PWADevServer.spec.js.snap

@@ -17,6 +17,7 @@ Object {
       "query": "query productDetail($urlKey: String, $onServer: Boolean!) {
     productDetail: products(filter: { url_key: { eq: $urlKey } }) {
         items {
+            __typename
             sku
             name
             price {

packages/venia-concept/src/components/MiniCart/__tests__/productOptions.spec.js

@@ -17,6 +17,7 @@ const cartItem = {
 };
 
 const configItem = {
+    __typename: 'ConfigurableProduct',
     configurable_options: [
         {
             attribute_code: 'size',

packages/venia-concept/src/components/MiniCart/cartOptions.js

@@ -9,6 +9,7 @@ import defaultClasses from './cartOptions.css';
 import Button from 'src/components/Button';
 import Quantity from 'src/components/ProductQuantity';
 import appendOptionsToPayload from 'src/util/appendOptionsToPayload';
+import isProductConfigurable from 'src/util/isProductConfigurable';
 
 // TODO: get real currencyCode for cartItem
 const currencyCode = 'USD';
@@ -36,6 +37,7 @@ class CartOptions extends Component {
             qty: number.isRequired
         }),
         configItem: shape({
+            __typename: string,
             configurable_options: array
         }),
         isUpdatingItem: bool,
@@ -69,39 +71,34 @@ class CartOptions extends Component {
     handleClick = async () => {
         const { updateCart, cartItem, configItem } = this.props;
         const { optionSelections, quantity } = this.state;
-        const { configurable_options } = configItem;
-        const isConfigurable = Array.isArray(configurable_options);
-        const productType = isConfigurable
-            ? 'ConfigurableProduct'
-            : 'SimpleProduct';
 
         const payload = {
             item: configItem,
-            productType,
+            productType: configItem.__typename,
             quantity: quantity
         };
 
-        if (productType === 'ConfigurableProduct') {
+        if (isProductConfigurable(configItem)) {
             appendOptionsToPayload(payload, optionSelections);
         }
+
         updateCart(payload, cartItem.item_id);
     };
 
     render() {
         const { fallback, handleSelectionChange, props } = this;
         const { classes, cartItem, configItem, isUpdatingItem } = props;
         const { name, price } = cartItem;
-        const { configurable_options } = configItem;
 
         const modalClass = isUpdatingItem
             ? classes.modal_active
             : classes.modal;
 
-        const options = Array.isArray(configurable_options) ? (
+        const options = isProductConfigurable(configItem) ? (
             <Suspense fallback={fallback}>
                 <section className={classes.options}>
                     <Options
-                        options={configurable_options}
+                        options={configItem.configurable_options}
                         onSelectionChange={handleSelectionChange}
                     />
                 </section>

packages/venia-concept/src/components/ProductFullDetail/ProductFullDetail.js

@@ -14,6 +14,7 @@ import RichText from 'src/components/RichText';
 import defaultClasses from './productFullDetail.css';
 import appendOptionsToPayload from 'src/util/appendOptionsToPayload';
 import findMatchingVariant from 'src/util/findMatchingProductVariant';
+import isProductConfigurable from 'src/util/isProductConfigurable';
 
 const Options = React.lazy(() => import('../ProductOptions'));
 
@@ -35,6 +36,7 @@ class ProductFullDetail extends Component {
             title: string
         }),
         product: shape({
+            __typename: string,
             id: number,
             sku: string.isRequired,
             price: shape({
@@ -63,7 +65,7 @@ class ProductFullDetail extends Component {
         const optionCodes = new Map(state.optionCodes);
 
         // if this is a simple product, do nothing
-        if (!Array.isArray(configurable_options)) {
+        if (!isProductConfigurable(props.product)) {
             return null;
         }
 
@@ -87,19 +89,14 @@ class ProductFullDetail extends Component {
         const { props, state } = this;
         const { optionSelections, quantity, optionCodes } = state;
         const { addToCart, product } = props;
-        const { configurable_options } = product;
-        const isConfigurable = Array.isArray(configurable_options);
-        const productType = isConfigurable
-            ? 'ConfigurableProduct'
-            : 'SimpleProduct';
 
         const payload = {
             item: product,
-            productType,
+            productType: product.__typename,
             quantity
         };
 
-        if (productType === 'ConfigurableProduct') {
+        if (isProductConfigurable(product)) {
             appendOptionsToPayload(payload, optionSelections, optionCodes);
         }
 
@@ -122,7 +119,7 @@ class ProductFullDetail extends Component {
     get productOptions() {
         const { fallback, handleSelectionChange, props } = this;
         const { configurable_options } = props.product;
-        const isConfigurable = Array.isArray(configurable_options);
+        const isConfigurable = isProductConfigurable(props.product);
 
         if (!isConfigurable) {
             return null;
@@ -142,13 +139,9 @@ class ProductFullDetail extends Component {
         const { props, state } = this;
         const { product } = props;
         const { optionCodes, optionSelections } = state;
-        const {
-            configurable_options,
-            media_gallery_entries,
-            variants
-        } = product;
+        const { media_gallery_entries, variants } = product;
 
-        const isConfigurable = Array.isArray(configurable_options);
+        const isConfigurable = isProductConfigurable(product);
 
         if (
             !isConfigurable ||
@@ -170,8 +163,31 @@ class ProductFullDetail extends Component {
         return item.product.media_gallery_entries;
     }
 
+    get isMissingOptions() {
+        const { product } = this.props;
+
+        // Non-configurable products can't be missing options
+        if (!isProductConfigurable(product)) {
+            return false;
+        }
+
+        // Configurable products are missing options if we have fewer
+        // option selections than the product has options.
+        const { configurable_options } = product;
+        const numProductOptions = configurable_options.length;
+        const numProductSelections = this.state.optionSelections.size;
+
+        return numProductSelections < numProductOptions;
+    }
+
     render() {
-        const { addToCart, productOptions, props, mediaGalleryEntries } = this;
+        const {
+            addToCart,
+            isMissingOptions,
+            mediaGalleryEntries,
+            productOptions,
+            props
+        } = this;
         const { classes, isAddingItem, product } = props;
         const { regularPrice } = product.price;
 
@@ -212,7 +228,7 @@ class ProductFullDetail extends Component {
                     <Button
                         priority="high"
                         onClick={addToCart}
-                        disabled={isAddingItem}
+                        disabled={isAddingItem || isMissingOptions}
                     >
                         <span>Add to Cart</span>
                     </Button>

packages/venia-concept/src/queries/getProductDetail.graphql

@@ -1,6 +1,7 @@
 query productDetail($urlKey: String, $onServer: Boolean!) {
     productDetail: products(filter: { url_key: { eq: $urlKey } }) {
         items {
+            __typename
             sku
             name
             price {

packages/venia-concept/src/queries/getProductDetailByName.graphql

@@ -1,6 +1,7 @@
 query productDetailByName($name: String, $onServer: Boolean!) {
     products(filter: { name: { eq: $name } }) {
         items {
+            __typename
             id
             sku
             name

packages/venia-concept/src/util/__tests__/isProductConfigurable.spec.js

@@ -0,0 +1,21 @@
+import isProductConfigurable from '../isProductConfigurable';
+
+test('returns true for a configurable product', () => {
+    const product = {
+        __typename: 'ConfigurableProduct'
+    };
+
+    const result = isProductConfigurable(product);
+
+    expect(result).toBe(true);
+});
+
+test('returns false for a non-configurable product', () => {
+    const product = {
+        __typename: 'SimpleProduct'
+    };
+
+    const result = isProductConfigurable(product);
+
+    expect(result).toBe(false);
+});

packages/venia-concept/src/util/isProductConfigurable.js

@@ -0,0 +1,4 @@
+const isProductConfigurable = product =>
+    product.__typename === 'ConfigurableProduct';
+
+export default isProductConfigurable;