3367 add facets subquery to product (#146)

src/resolvers/products-resolver.ts

@@ -1,5 +1,6 @@
 import { ProductAPI } from '../datasources/product-api';
 import {
+  Orientation,
   PrintProduct,
   Product,
   ProductListResult,
@@ -20,6 +21,7 @@ import { DesignerAPI } from '../datasources/designer-api';
 import { PrintProductDefaultsAPI } from '../datasources/printproduct-defaults-api';
 import { PrintProductDefaults } from '../types/printproduct-defaults-types';
 import { GraphQLError } from 'graphql';
+import { getOrientationString, isRepeatingPattern } from '../datasources/utils';
 
 const ProductBlacklist = {
   async market(parent, _args, { dataSources }) {
@@ -45,6 +47,41 @@ const Product = {
   async related({ id }, _args, { dataSources }) {
     return (<ProductAPI>dataSources.productApi).getRelatedProducts(id);
   },
+  async facets(product: Product, _args, { dataSources }) {
+    const keywords = await (<KeywordAPI>(
+      dataSources.keywordApi
+    )).getProductKeywords(product.id);
+    const colors = [];
+    const types = [];
+    keywords.forEach((keyword) => {
+      if (keyword.type === 'COLOR') {
+        colors.push(keyword.value);
+      } else if (keyword.value === 'typeillustration') {
+        types.push('illustration');
+      } else if (keyword.value === 'typephotography') {
+        types.push('photograph');
+      }
+    });
+
+    const isRepeating = isRepeatingPattern(product);
+    if (isRepeating) {
+      types.push('repeating-pattern');
+    }
+
+    const orientations = isRepeating
+      ? [
+          Orientation[Orientation.LANDSCAPE],
+          Orientation[Orientation.STANDING],
+          Orientation[Orientation.SQUARE],
+        ]
+      : [getOrientationString(product.fields)];
+
+    return [
+      { attribute: 'color', values: colors },
+      { attribute: 'orientation', values: orientations },
+      { attribute: 'type', values: types },
+    ];
+  },
 };
 
 const PrintProduct = {