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<?php
namespace frontend\models;
use Yii;
use yii\base\Model;
use common\models\User;
/**
 * Signup form
 */
class SignupForm extends Model
{
    public $firstname;
    public $lastname;
    public $username;
    public $email;
    public $password;
    public $repeatPassword;
    /**
     * @inheritdoc
     */
    public function rules()
    {
        return [
            ['firstname', 'trim'],
            ['firstname', 'required'],
            ['lastname', 'trim'],
            ['lastname', 'required'],
            ['username', 'trim'],
            ['username', 'unique', 'targetClass' => '\common\models\User', 'message' => 'This username has already been taken.'],
            ['username', 'string', 'min' => 2, 'max' => 255],
            ['email', 'trim'],
            ['email', 'required'],
            ['email', 'email'],
            ['email', 'unique', 'targetClass' => '\common\models\User', 'message' => Yii::t('app', 'This email address has already been taken.')],
            ['email', 'string', 'max' => 255],
            ['password', 'required'],
            ['password', 'string', 'min' => 6],
            ['repeatPassword', 'required'],
            ['repeatPassword', 'compare', 'compareAttribute' => 'password', 'skipOnEmpty' => false, 'message' => Yii::t('app', 'Repeat password should be exacly the same as password.')],
        ];
    }
    /**
     * Signs user up.
     *
     * @return User|null the saved model or null if saving fails
     */
    public function signup()
    {
        if (!$this->validate()) {
            return null;
        }
        $user = new User();
        $user->username = $this->username;
        $user->email = $this->email;
        $user->setPassword($this->password);
        $user->firstname = $this->firstname;
        $user->lastname = $this->lastname;
        $user->generateAuthKey();
        $user->generateAccessToken();
        $user->generateEmailConfirmToken();
        if(!$user->save()){
            return null;
        }
        self::sendConfirmationEmail($user);
        Yii::$app->getSession()->setFlash('info', Yii::t('app', 'Confirm your email to activate your account.'));
        return $user;
    }
    /**
     * Sends an email to the specified email address using the information collected by this model.
     *
     * @param string $email the target email address
     * @return boolean whether the email was sent
     */
    private static function sendConfirmationEmail($user)
    {
        $message = Yii::$app->mailer->compose('emailConfirmToken', ['user' => $user]);
        $fromEmail = \Yii::$app->params['supportEmail'];
        $sourceEmail = $message->getFrom();
        if (!empty($sourceEmail)) $fromEmail = key($sourceEmail);
        return $message->setFrom([$fromEmail => \Yii::$app->name . ' robot'])
            ->setReplyTo([\Yii::$app->params['supportEmail'] => \Yii::$app->name . ' robot'])
            ->setTo([$user->email => $user->fullname])
            ->setSubject(Yii::t('app', 'Email confirmation'))
            ->send();
    }
}