Feature: Reviews restructuring and Creating Collection Indexer and Services

src/Catalog/Services/CollectionIndexer.php

@@ -0,0 +1,69 @@
+<?php
+
+namespace Modules\Core\Catalog\Services;
+
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\Model;
+use Lunar\Models\Collection;
+use Lunar\Search\CollectionIndexer as BaseCollectionIndexer;
+
+/**
+ * Extends Lunar's own indexer so Modules\Core\Catalog\Services\CollectionService can
+ * serve category browsing/nav AND single-collection lookups from Meilisearch alone,
+ * the same reasoning as Modules\Core\Catalog\Services\ProductIndexer. Lunar's base
+ * indexer only carries `id`/`name`/`created_at` — nowhere near enough for a storefront
+ * category page or a nav tree. Adds:
+ *   - parent_id, _lft, _rgt (filterable/sortable) — the nested-set tree position, so
+ *     CollectionService can resolve "children of X" or build a full tree without a
+ *     database read
+ *   - collection_group_id (filterable) — mirrors Collection::scopeInGroup()
+ *   - slugs (filterable) — every locale's Url::slug, so getBySlug() resolves from the
+ *     index directly, no database read
+ *   - thumbnail (display) — the collection's thumbnail image URL
+ *
+ * New fields aren't filterable/sortable in Meilisearch until `php artisan
+ * lunar:meilisearch:setup` re-syncs index settings, and existing documents need
+ * `lunar:search:index --refresh` to pick up the new shape.
+ */
+class CollectionIndexer extends BaseCollectionIndexer
+{
+    public function getFilterableFields(): array
+    {
+        return [
+            ...parent::getFilterableFields(),
+            'id',
+            'parent_id',
+            '_lft',
+            'collection_group_id',
+            'slugs',
+        ];
+    }
+
+    public function getSortableFields(): array
+    {
+        return [
+            ...parent::getSortableFields(),
+            '_lft',
+        ];
+    }
+
+    public function makeAllSearchableUsing(Builder $query): Builder
+    {
+        return parent::makeAllSearchableUsing($query)->with(['urls', 'media']);
+    }
+
+    public function toSearchableArray(Model $model): array
+    {
+        /** @var Collection $model */
+        $data = parent::toSearchableArray($model);
+
+        $data['parent_id'] = $model->parent_id;
+        $data['_lft'] = $model->_lft;
+        $data['_rgt'] = $model->_rgt;
+        $data['collection_group_id'] = $model->collection_group_id;
+        $data['slugs'] = $model->urls->pluck('slug')->unique()->values()->all();
+        $data['thumbnail'] = $model->getThumbnailImage() ?: null;
+
+        return $data;
+    }
+}