kcal/app/Http/Controllers/IngredientPickerController.php

<?php

namespace App\Http\Controllers;

use App\Models\Food;
use App\Models\Recipe;
use ElasticScoutDriverPlus\Builders\MultiMatchQueryBuilder;
use ElasticScoutDriverPlus\Builders\TermsQueryBuilder;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class IngredientPickerController extends Controller
{
    /**
     * Search for ingredients.
     */
    public function search(Request $request): JsonResponse
    {
        $results = new Collection();
        $term = $request->query->get('term');
        if (!empty($term)) {
            $results = 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();
        }
        return response()->json($results->values());
    }
}