web-panel/routes/web.php

<?php

use App\ParkingLot;
use Google\Cloud\Firestore\FirestoreClient;

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/

Route::get('/', function () {
    return view('welcome');
});

Auth::routes();

Route::get('/home', 'HomeController@index')->name('home');

Route::get('/lot/selectstalls', function() { return view('selectstalls'); } );

Route::get('/lot/add', function() { return view('lot.add'); } );
Route::post('/lot/post', function(\Illuminate\Http\Request $request) {
    /*$this->validate($request, [
        'image' => 'required|image|mimes:jpeg,png,jpg,gif,svg|max:4096',
    ]);*/

    if ( $request->hasFile('image') ){
        $img = $request->file('image');
        $name = time() . '.' . $img->getClientOriginalExtension();
        $destination_path = public_path('/img/references');
        $img->move($destination_path, $name);
//        $this->save();

        $lot_object = new ParkingLot([
            'firebase_id' => str_replace(' ', '-', $request->get('name')),
            'stall_coordinates' => '',
            'reference_image' => $name
        ]);

        $lot_object->save();

        return view('selectstalls', [ 'image_name' => $name, 'lot_id' => $lot_object->id ]);
    }
});

Route::post('/lot/generate', function(\Illuminate\Http\Request $request){
    $lot_object = ParkingLot::find($request->get('lotid'));
    $lot_object->stall_coordinates = $request->get('coords');
    $lot_object->save();

    $db = new FirestoreClient();

    $doc_ref = $db->collection('lots')->document($lot_object->firebase_id);
    $doc_ref->set([]);

    $doc_ref = $db->collection('lots')->document($lot_object->firebase_id)->collection('info')->document('lotInfo');
    $doc_ref->set([
        'coordinates' => $lot_object->stall_coordinates,
        'lotID' => $lot_object->id,
        'refImage' => $lot_object->reference_image,
        'tableLayout' => '',
    ]);

    $coords = json_decode($lot_object->stall_coordinates);
    $stall_no = 1;
    foreach ($coords as $coord){
        $doc_ref = $db->collection('lots')->document($lot_object->firebase_id)->collection('stalls')->document('Stall-'.$stall_no);
        $doc_ref->set([
            'handicap' => false,
            'locationX' => $coord->x,
            'locationY' => $coord->y,
            'open' => true,
            'passID' => 0,
            'width' => $coord->w,
            'height' => $coord->h,
            'stall' => $stall_no,
        ]);

        $stall_no += 1;
    }



    echo $request->get('coords');
});