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<?php
namespace Common\Validation\Validators;
use App\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;
}
}