ldc-lionor/app/Http/Controllers/Fo/ShopController.php

<?php

namespace App\Http\Controllers\Fo;

use App\Http\Controllers\Controller;
use App\Http\Requests\Fo\Shop\GetNearestShopRequest;
use App\Models\Shop;
use Illuminate\Support\Facades\DB;

class ShopController extends Controller
{
    // * FUNCTIONS FOR FRONT MARKET FINDER

    /**
     * Get all shops
     * @return json
     */
    public function index()
    {
        if (request()->wantsJson()) {
            return response()
                ->json(Shop::all());
        }
        return abort(404);
    }

    /**
     * Get the 5 nearest shops with the given coords in the request.
     * @param App\Http\Requests\Fo\Shop\GetNearestShopRequest $request
     * @return json
     */
    public function getNearest(GetNearestShopRequest $request)
    {
        $latitude  = $request->latitude;
        $longitude = $request->longitude;
        $raw       = DB::raw(
            'ROUND ((6371*acos(cos(radians(' . $latitude . '))*cos(radians(latitude))*cos(radians(longitude)
            - radians(' . $longitude . '))+sin(radians(' . $latitude . '))*sin(radians(latitude)))), 2)
            AS distance'
        );
        $results   = DB::table("shops")->select('*')->addSelect($raw)->orderBy('distance', 'ASC')->limit(5)->get();

        if ($request->wantsJson()) {
            return response()
                ->json($results);
        }
        return abort(404);
    }
}