Laravel CRUD Generator + Bootstrap4 upgrade

GrudGeneratorController.php

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\File;
use Illuminate\Support\Facades\Artisan;

class CrudGenerator extends Controller
{
    public function generate()
    {

        $models = [
            'operations' => [
                'fields' => 'tipo#select#options=relationship; almacen#string; mercancia#string; transfer_from#string; transfer_to#string; notes#text; complete#boolean',
                'validations' => 'tipo#required; almacen#required; mercancia#required; transfer_from#required; transfer_to#required',
            ],
            'types' => [
                'fields' => 'client_id#select#options=relationship; name#string; facturable#boolean',
                'validations' => 'client_id#required|numeric|min:1; name#required|min:2',
            ],
            'vacios' => [
                'fields' => 'tipo#radio#options={"Puerto": "Puerto", "Oficina": "Oficina", "ZAL": "ZAL"}; matricula#string; parking#string; notes#json; complete#boolean',
                'validations' => 'tipo#required; matricula#required; parking#required',
            ],
            // 'gps' => [
            //     'fields' => 'name#string; client_id#select#options=relationship; estado#select#options=relationship; notes#json',
            //     'validations' => 'name#required; client_id#required|numeric|min:1',
            // ],
            'gpsjobs' => [
                'fields' => 'client_id#select#options=relationship; matricula#string; chofer#string; gps_id#select#options=relationship; delivery_at#date; delivered_by#select#options=relationship; return_at#date; return_by#select#options=relationship; complete#boolean; notes#json',
                'validations' => 'chofer#required; maticula#required; gps_id#required; delivery_at#required; client_id#required',
            ],
            'users' => [
                'fields' => 'name#string; email#email; password#password; admin#boolean',
                'validations' => 'name#required|min:2; email#required|email',
            ],
            'clients' => [
                'fields' => 'name#string; cif#string; address#string; phone#string; email#email; calidad_name#string; calidad_email#email; notes#json; logo#file',
                'validations' => 'name#required',
            ]
        ];

        foreach ($models as $model => $data) {
            $this->generateViewsCrud($model, $data);
            // $this->generateControllerCrud($model);
        }

    }

    protected function generateViewsCrud($model, $data){
        $directory = resource_path('views/altraser/'.kebab_case($model));
        $success = File::deleteDirectory($directory);
        $options = [
            'name' => $model,
            '--view-path' => 'altraser',
            '--form-helper' => 'boot4',
            '--fields' => $data['fields'],
            '--validations' => $data['validations'],
            // '--force' => true,
        ];

        $this->runCommand('crud:view', $options);

        // $command = "sed -i -e 's/abc/XYZ/g' /tmp/file.txt"
        $this->upgradeBootstrap($directory);

    }

    protected function generateControllerCrud($model){
        $options = [
            'model' => $model,
            '--swagger' => false,
        ];

        $this->runCommand('ksoft:krud', $options);
    }


    protected function runCommand($command, $options){
        $exitCode = Artisan::call($command, $options);
        $output = Artisan::output();
        echo $output;
    }

    protected function upgradeBootstrap($directory){

        $replacements = [
            // 'table table-borderless' => 'table table-inverse',
            // 'help-block' => 'form-text',
            // 'btn-default' => 'btn-secondary',
            // 'btn-xs' => 'btn-sm',
            // 'control-label' => 'form-control-label',
            // 'form-group ' => 'form-group row ',
            // 'panel-default' => '',
            // 'panel-heading' => 'card-header',
            // 'panel-body' => 'card-block',
            // '<div class="panel">' => '<div class="card">',
            "json_decode('relationship', true)" => "['uno', 'dos']",
        ];

        $files = File::allFiles($directory);
        foreach ($files as $file)
        {
            $content  = app('files')->get($file);
            $content = str_replace(array_keys($replacements), array_values($replacements), $content);
            app('files')->put($file, $content);
        }


    }


}