clrghouz/app/Http/Requests/SystemRegister.php

<?php

namespace App\Http\Requests;

use Illuminate\Foundation\Http\FormRequest;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Gate;

use App\Models\System;

class SystemRegister extends FormRequest
{
	private System $so;

    /**
     * Determine if the user is authorized to make this request.
     *
     * @return bool
     */
    public function authorize(Request $request)
    {
		$this->so = System::findOrNew($request->system_id);

		return Gate::allows($this->so->users->count() ? 'update' : 'register',$this->so);
    }

    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules(Request $request)
    {
		if ((! $request->isMethod('post')) || ($request->action == 'register'))
			return [];

		if ((! $this->so->exists) && ($request->action == 'create')) {
			return [
				'name' => 'required|min:3',
			];
		}

        return array_filter(array_merge(
			[
				'name' => 'required|min:3',
			],
			($this->so->exists || ($request->action != 'create')) ? [
				'location' => 'required|min:3',

				'sysop' => 'required|min:3',
				'phone' => 'nullable|regex:/^([0-9-]+)$/',
				'address' => 'nullable|regex:/^(?!:\/\/)(?=.{1,255}$)((.{1,63}\.){1,127}(?![0-9]*$)[a-z0-9-]+\.?)$/i',
				'port' => 'nullable|digits_between:2,5',
				'method' => 'nullable|numeric',
				'mailer_type' => 'nullable|numeric',
				'mailer_address' => 'nullable|regex:/^(?!:\/\/)(?=.{1,255}$)((.{1,63}\.){1,127}(?![0-9]*$)[a-z0-9-]+\.?)$/i',
				'mailer_port' => 'nullable|digits_between:2,5',
				'zt_id' => 'nullable|size:10|regex:/^([A-Fa-f0-9]){10}$/|unique:systems,zt_id,'.($this->so->exists ? $this->so->id : 0),
			] : [],
			$this->so->exists ? [
				'active' => 'required|boolean',
				'hold' => 'required|boolean',
			] : [],
		));
    }
}