Middleware for automatic switch over of database host in Laravel

DrcSwitchMiddleware.php

<?php

namespace App\Http\Middleware;

use Closure;
use Artisan;
use Log;
use DB;

class DrcSwitchMiddleware
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        try {
            DB::connection()->getPdo();
        } catch (\Exception $e) {
            DB::purge(config('database.default'));
            if (str_contains(env('DB_HOST'), 'srv-itam')) {
                Log::info('IS SWITCHING TO DRC');
                $this->envUpdate('DB_HOST', env('DB_HOST_DRC'));
                $this->envUpdate('DB_PORT',env('DB_PORT_DRC'));
            } else {
                Log::info('IS SWITCHING TO MAIN');
                $this->envUpdate('DB_HOST', env('DB_HOST_MAIN'));
                $this->envUpdate('DB_PORT',env('DB_PORT_MAIN'));
            }
            Artisan::call('config:clear');
            exit('Please refresh');
        }

        return $next($request);
    }



    /**
     * Update Laravel Env file Key's Value
     * @param string $key
     * @param string $value
     */
    public function envUpdate($key, $value)
    {
        $path = base_path('.env');

        if (file_exists($path)) {

            file_put_contents($path, str_replace(
                $key . '=' . env($key), $key . '=' . $value, file_get_contents($path)
            ));
        }
    }
}