From f67ae25b13714a3e80717d75bd02a200be37ff48 Mon Sep 17 00:00:00 2001
From: "Christopher C. Wells" <git@chris-wells.net>
Date: Mon, 5 Apr 2021 21:07:40 -0700
Subject: [PATCH] Add support for a fallback when `SCOUT_DRIVE` is NULL

---
 .../IngredientPickerController.php            | 66 +++++++++++++------
 1 file changed, 46 insertions(+), 20 deletions(-)

diff --git a/app/Http/Controllers/IngredientPickerController.php b/app/Http/Controllers/IngredientPickerController.php
index 7bdbba7..83a5888 100644
--- a/app/Http/Controllers/IngredientPickerController.php
+++ b/app/Http/Controllers/IngredientPickerController.php
@@ -20,28 +20,54 @@ class IngredientPickerController extends Controller
         $results = new Collection();
         $term = $request->query->get('term');
         if (!empty($term)) {
-            $results = Food::boolSearch()
-                ->join(Recipe::class)
+            $results = match (env('SCOUT_DRIVER')) {
+                'elastic' => $this->searchWithElasticSearch($term),
+                default => $this->searchWithDatabaseLike($term),
+            };
 
-                // Attempt to match exact phrase first.
-                ->should('match_phrase', ['name' => $term])
-
-                // Attempt multi-match search on all relevant fields with search-as-you-type on name.
-                ->should((new MultiMatchQueryBuilder())
-                    ->fields(['name', 'name._2gram', 'name._3gram', 'detail', 'brand', 'source'])
-                    ->query($term)
-                    ->type('bool_prefix')
-                    ->analyzer('simple')
-                    ->fuzziness('AUTO'))
-
-                // Attempt to match on any tags in the term.
-                ->should((new TermsQueryBuilder())
-                    ->terms('tags', explode(' ', $term)))
-
-                // Get resulting models.
-                ->execute()
-                ->models();
         }
         return response()->json($results->values());
     }
+
+    /**
+     * Search using an ElasticSearch service.
+     */
+    private function searchWithElasticSearch(string $term): Collection {
+        return Food::boolSearch()
+            ->join(Recipe::class)
+
+            // Attempt to match exact phrase first.
+            ->should('match_phrase', ['name' => $term])
+
+            // Attempt multi-match search on all relevant fields with search-as-you-type on name.
+            ->should((new MultiMatchQueryBuilder())
+                ->fields(['name', 'name._2gram', 'name._3gram', 'detail', 'brand', 'source'])
+                ->query($term)
+                ->type('bool_prefix')
+                ->analyzer('simple')
+                ->fuzziness('AUTO'))
+
+            // Attempt to match on any tags in the term.
+            ->should((new TermsQueryBuilder())
+                ->terms('tags', explode(' ', $term)))
+
+            // Get resulting models.
+            ->execute()
+            ->models();
+    }
+
+    /**
+     * Search using basic database WHERE ... LIKE queries.
+     */
+    private function searchWithDatabaseLike(string $term): Collection {
+        $foods = Food::query()->where('foods.name', 'like', "%{$term}%")
+            ->orWhere('foods.detail', 'like', "%{$term}%")
+            ->orWhere('foods.brand', 'like', "%{$term}%")
+            ->get();
+        $recipes = Recipe::query()->where('recipes.name', 'like', "%{$term}%")
+            ->orWhere('recipes.description', 'like', "%{$term}%")
+            ->orWhere('recipes.source', 'like', "%{$term}%")
+            ->get();
+        return $foods->merge($recipes);
+    }
 }