File "EmailsAreValid.php"
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<?php
namespace Common\Validation\Validators;
use App\Models\User;
use Illuminate\Contracts\Validation\Rule;
use Illuminate\Validation\Concerns\ValidatesAttributes;
class EmailsAreValid implements Rule
{
use ValidatesAttributes;
/**
* @var int
*/
private $maxEmails = 5;
/**
* @var bool
*/
private $validateExistence;
/**
* @var string
*/
private $validationMessage;
public function __construct($validateExistence = true)
{
$this->validateExistence = $validateExistence;
}
/**
* @inheritDoc
*/
public function passes($attribute, $emails)
{
$invalidEmails = array_filter($emails, function ($email) use (
$attribute
) {
return !$this->validateEmail($attribute, $email, []);
});
if (!empty($invalidEmails)) {
$this->validationMessage = $this->invalidEmailsMessage(
$invalidEmails,
);
return false;
}
if ($this->validateExistence) {
$dbEmails = app(User::class)
->whereIn('email', $emails)
->pluck('email');
$nonExistentEmails = array_filter($emails, function ($email) use (
$dbEmails
) {
return !$dbEmails->contains($email);
});
if (!empty($nonExistentEmails)) {
$this->validationMessage = $this->emailsDontExistMessage(
$nonExistentEmails,
);
return false;
}
}
return true;
}
private function invalidEmailsMessage(array $emails): string
{
$emailString = implode(', ', array_slice($emails, 0, $this->maxEmails));
if (count($emails) > $this->maxEmails) {
$emailString .= '...';
}
return trans('Invalid emails: :emails', ['emails' => $emailString]);
}
private function emailsDontExistMessage(array $emails): string
{
$emailString = implode(', ', array_slice($emails, 0, $this->maxEmails));
if (count($emails) > $this->maxEmails) {
$emailString .= '...';
}
return trans('Could not find users for emails: :emails', [
'emails' => $emailString,
]);
}
/**
* @inheritDoc
*/
public function message()
{
return $this->validationMessage;
}
}