<?php
namespace api\models;
use Yii;
use common\models\User;
use common\models\Token;
use yii\base\Model;
/**
 * Login form
 */
class LoginForm extends Model
{
    public $phone;
    public $password;

    private $_user;

    /**
     * @inheritdoc
     */

     public function rules()
     {
         return[
             [['phone', 'password'], 'required'],
             ['password', 'validatePassword'],
         ];
     }

     public function validatePassword($attribute, $params)
     {
         if (!$this->hasErrors()){
             $user = $this->getUser();
             if (!$user || !$user->validatePassword($this->password)){
                 $this->addError($attribute, 'Не верный телефон или пароль');
             }
         }
     }
     /**
      * @return Token|null
      */
      public function auth()
      {
          if ($this->validate()){
              $token = new Token();
              $token->user_id = $this->getUser()->id;
              $token->generateToken(time() + 3600 * 24);
              return $token->save() ? $token : null;
          } else {
              return null;
          }
      }

      /**
       *  Finds user by [[phone]]
       *
       * @return User|null
       */
      protected function getUser()
      {
          if ($this->_user === null) {
              $this->_user = User::findByPhone($this->phone);
          }
          return $this->_user;
      }
}