<?php
  
  namespace app\models;
  
  class User extends \yii\base\BaseObject implements \yii\web\IdentityInterface
  {
      public $id;
      public $username;
      public $password;
      public $authKey;
      public $accessToken;
  
      private static $users = [
          '100' => [
              'id' => '100',
              'username' => 'admin',
              'password' => 'admin',
              'authKey' => 'test100key',
              'accessToken' => '100-token',
          ],
          '101' => [
              'id' => '101',
              'username' => 'demo',
              'password' => 'demo',
              'authKey' => 'test101key',
              'accessToken' => '101-token',
          ],
      ];
  
  
      /**
       * {@inheritdoc}
       */
      public static function findIdentity($id)
      {
          return isset(self::$users[$id]) ? new static(self::$users[$id]) : null;
      }
  
      /**
       * {@inheritdoc}
       */
      public static function findIdentityByAccessToken($token, $type = null)
      {
          foreach (self::$users as $user) {
              if ($user['accessToken'] === $token) {
                  return new static($user);
              }
          }
  
          return null;
      }
  
      /**
       * Finds user by username
       *
       * @param string $username
       * @return static|null
       */
      public static function findByUsername($username)
      {
          foreach (self::$users as $user) {
              if (strcasecmp($user['username'], $username) === 0) {
                  return new static($user);
              }
          }
  
          return null;
      }
  
      /**
       * {@inheritdoc}
       */
      public function getId()
      {
          return $this->id;
      }
  
      /**
       * {@inheritdoc}
       */
      public function getAuthKey()
      {
          return $this->authKey;
      }
  
      /**
       * {@inheritdoc}
       */
      public function validateAuthKey($authKey)
      {
          return $this->authKey === $authKey;
      }
  
      /**
       * Validates password
       *
       * @param string $password password to validate
       * @return bool if password provided is valid for current user
       */
      public function validatePassword($password)
      {
          return $this->password === $password;
      }
  }