spt-items-api/app/Data/ItemsCollection.php

<?php

namespace App\Data;

use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Str;

class ItemsCollection
{
    protected Collection $data;

    public function __construct()
    {
        if (!Cache::has('items')) {
            $file = storage_path('items.json');
            $this->data = collect(json_decode(file_get_contents($file), true)['data']);
            Cache::put('items', $this->data);
        } else {
            $this->data = Cache::get('items');
        }
    }

    /**
     * @param string $query
     * @return array
     */
    public function findItem(string $query): array
    {
        return $this->data->filter(function ($val) use ($query) {
            $query = Str::lower($query);
            return Str::contains($val['_id'], $query)
                || Str::contains($val['_name'], $query)
                || Str::contains($val['_parent'], $query);
        })->map(function ($item) {
            return [
                '_id' => $item['_id'],
                '_name' => $item['_name'],
            ];
        })->all();
    }

    /**
     * @param string $id
     * @return array
     */
    public function getItemById(string $id)
    {
        return $this->data[$id];
    }
}