sfp_api_laravel_serprati/app/Http/Requests/LandingPageRegisterRequest.php

<?php

namespace App\Http\Requests;

use App\Enums\UserStatusEnum;
use App\Models\User;
use Illuminate\Foundation\Http\FormRequest;

class LandingPageRegisterRequest extends FormRequest
{
    public function rules(): array
    {
        return [
            'name'         => 'required|string|max:120',
            'last_name'    => 'required|string|max:120',
            'cpf'          => 'required|string|max:14|unique:users,cpf',
            'registration' => 'required|string|max:255|unique:users,registration',
            'email'        => 'required|email|unique:users,email',
            'phone'        => 'required|string|max:20',
            'position_id'  => 'required|integer|exists:positions,id',
            'sector_id'    => 'required|integer|exists:sectors,id',
        ];
    }

    public function messages(): array
    {
        return [
            'registration.unique' => $this->registrationTakenMessage(),
            'cpf.unique'          => __('messages.landing.cpf_taken'),
            'email.unique'        => __('messages.landing.email_taken'),
        ];
    }

    private function registrationTakenMessage(): string
    {
        $user = User::where('registration', $this->input('registration'))->first();

        return match (true) {
            (bool) $user?->first_access_completed_at   => __('messages.landing.registration_first_access_done'),
            $user?->status === UserStatusEnum::PENDING => __('messages.landing.registration_pending_approval'),
            default                                    => __('messages.landing.registration_taken'),
        };
    }
}