MAGE-569 Implement recursive backend retrieval of URLs for all subcats

Author: cammonro

Block/Configuration.php

@@ -30,6 +30,40 @@ public function isSearchPage()
         return false;
     }
 
+    /**
+     * @param \Magento\Catalog\Model\Category $cat
+     * @return string
+     */
+    protected function initCategoryParentPath(\Magento\Catalog\Model\Category $cat): string {
+        $path = '';
+        foreach ($cat->getPathIds() as $treeCategoryId) {
+            if ($path) {
+                $path .= $this->getConfigHelper()->getCategorySeparator($this->getStoreId());
+            }
+            $path .= $this->getCategoryHelper()->getCategoryName($treeCategoryId, $this->getStoreId());
+        }
+        return $path;
+    }
+
+    /**
+     * @param \Magento\Catalog\Model\Category $cat
+     * @param string $parent
+     * @param array $arr
+     * @return array
+     */
+    protected function getChildCategoryUrls(\Magento\Catalog\Model\Category $cat, string $parent = '', array $arr = array()): array {
+        if (!$parent) {
+            $parent = $this->initCategoryParentPath($cat);
+        }
+
+        foreach ($cat->getChildrenCategories() as $child) {
+            $key = $parent ? $parent . $this->getConfigHelper()->getCategorySeparator() . $child->getName() : $child ->getName();
+            $arr[$key]['url'] = $child->getUrl();
+            $arr = array_merge($arr, $this->getChildCategoryUrls($child, $key, $arr));
+        }
+        return $arr;
+    }
+
     public function getConfiguration()
     {
         $config = $this->getConfigHelper();
@@ -70,6 +104,7 @@ public function getConfiguration()
         $level = '';
         $categoryId = '';
         $parentCategoryName = '';
+        $childCategories = [];
 
         $addToCartParams = $this->getAddToCartParams();
 
@@ -88,6 +123,7 @@ public function getConfiguration()
 
             if ($category && $category->getDisplayMode() !== 'PAGE') {
                 $category->getUrlInstance()->setStore($this->getStoreId());
+                $childCategories = $this->getChildCategoryUrls($category);
 
                 $categoryId = $category->getId();
 
@@ -236,6 +272,7 @@ public function getConfiguration()
                 'path' => $path,
                 'level' => $level,
                 'parentCategory' => $parentCategoryName,
+                'childCategories' => $childCategories
             ],
             'showCatsNotIncludedInNavigation' => $config->showCatsNotIncludedInNavigation(),
             'showSuggestionsOnNoResultsPage' => $config->showSuggestionsOnNoResultsPage(),

view/frontend/web/instantsearch.js

@@ -463,13 +463,21 @@ requirejs(['algoliaBundle', 'Magento_Catalog/js/price-utils'], function (algolia
 					sortBy: ['name:asc'],
                     transformItems(items) {
                         return (algoliaConfig.isCategoryPage)
-                            ? findRoot(items)
+                            ? findRoot(items).map(
+                                item => {
+                                    if (true) {
+                                        item.categoryUrl = algoliaConfig.request.childCategories[item.value]['url'];
+                                    }
+                                    console.log('item:', item);
+                                    return item;
+                                }
+                            )
                             : items;
                     },
 				};
 
 				hierarchicalMenuParams.templates.item = '' +
-					'<a class="{{cssClasses.link}} {{#isRefined}}{{cssClasses.link}}--selected{{/isRefined}}" href="{{url}}">{{label}}' + ' ' +
+					'<a class="{{cssClasses.link}} {{#isRefined}}{{cssClasses.link}}--selected{{/isRefined}}" href="{{categoryUrl}}">{{label}}' + ' ' +
 					'<span class="{{cssClasses.count}}">{{#helpers.formatNumber}}{{count}}{{/helpers.formatNumber}}</span>' +
 					'</a>';
 				hierarchicalMenuParams.panelOptions = {