Feat: Updating Product Indexer, and Product Sort

src/Catalog/Enums/ProductSort.php

@@ -14,6 +14,7 @@ enum ProductSort: string
     case PriceAsc = 'price_asc';
     case PriceDesc = 'price_desc';
     case Newest = 'newest';
+    case Popularity = 'popularity';
 
     public function toMeilisearchSort(): string
     {
@@ -21,6 +22,12 @@ enum ProductSort: string
             self::PriceAsc => 'price:asc',
             self::PriceDesc => 'price:desc',
             self::Newest => 'created_at:desc',
+            // order_count — see Modules\Core\Catalog\Services\
+            // ProductIndexer::toSearchableArray()'s own docblock: the same
+            // trailing-year, physical-order-line-count definition Lunar's
+            // own admin dashboard "Popular Products" widget already uses,
+            // aggregated per product rather than per variant.
+            self::Popularity => 'order_count:desc',
         };
     }
 }

src/Catalog/Services/ProductIndexer.php

@@ -5,6 +5,7 @@ namespace Modules\Core\Catalog\Services;
 use Illuminate\Database\Eloquent\Builder;
 use Illuminate\Database\Eloquent\Model;
 use Lunar\Models\Currency;
+use Lunar\Models\OrderLine;
 use Lunar\Models\Price;
 use Lunar\Models\Product;
 use Lunar\Models\ProductVariant;
@@ -103,6 +104,7 @@ class ProductIndexer extends BaseProductIndexer
         return [
             ...parent::getSortableFields(),
             'price',
+            'order_count',
         ];
     }
 
@@ -161,6 +163,24 @@ class ProductIndexer extends BaseProductIndexer
         $data['in_stock'] = $model->variants->contains(
             fn (ProductVariant $variant) => $variant->canBeFulfilledAtQuantity(1)
         );
+        // Same "popular" definition as Lunar's own admin dashboard widget
+        // (Lunar\Admin\Filament\Widgets\Dashboard\Orders\
+        // PopularProductsTable) — order-line COUNT, not summed quantity,
+        // over the trailing year, physical lines only — just aggregated
+        // per PRODUCT here (across all its variants) rather than per
+        // variant/identifier, since a storefront "sort by popularity"
+        // ranks products, not individual variant SKUs. Necessarily as
+        // stale as any other reindex-time field here (in_stock, price) —
+        // there's no live equivalent without a query per page load.
+        $data['order_count'] = OrderLine::query()
+            ->whereIn('purchasable_id', $model->variants->pluck('id'))
+            ->where('purchasable_type', 'product_variant')
+            ->where('type', 'physical')
+            ->whereHas('order', fn ($query) => $query->whereBetween('placed_at', [
+                now()->subYear()->startOfDay(),
+                now()->endOfDay(),
+            ]))
+            ->count();
         $data['recommendations'] = app(RecommendationService::class)
             ->recommend($model)
             ->load(['media', 'variants.prices'])