<?php

namespace app\models;

use Yii;
use yii\base\NotSupportedException;
use yii\db\ActiveRecord;
use yii\web\IdentityInterface;

class User extends ActiveRecord implements IdentityInterface
{
  /**
   * Declares the name of the database table associated with this AR class.
   *
   * @return string
   */
  public static function tableName()
  {
    return 'pbb.users';
  }

  /**
   * Finds an identity by the given ID.
   *
   * @param  int|string $id The user id.
   * @return IdentityInterface|static
   */
  public static function findIdentity($id)
  {
    return static::findOne(['id' => $id]);
  }

  /**
   * Finds an identity by the given ID.
   *
   * @param  int|string $id The user id.
   * @return IdentityInterface|static
   */
  public static function findByUsername($username)
  {
    return static::findOne(['username' => $username]);
  }

  /**
   * Finds an identity by the given access token.
   *
   * @param  mixed $token
   * @param  null  $type
   * @return void|IdentityInterface
   * 
   * @throws NotSupportedException
   */
  public static function findIdentityByAccessToken($token, $type = null)
  {
    throw new NotSupportedException('"findIdentityByAccessToken" is not implemented.');
  }

  /**
   * Returns an ID that can uniquely identify a user identity.
   *
   * @return int|mixed|string
   */
  public function getId()
  {
    return $this->getPrimaryKey();
  }

  /**
   * Returns a key that can be used to check the validity of a given
   * identity ID. The key should be unique for each individual user, and
   * should be persistent so that it can be used to check the validity of
   * the user identity. The space of such keys should be big enough to defeat
   * potential identity attacks.
   *
   * @return string
   */
  public function getAuthKey()
  {
    //return $this->auth_key;
  }

  /**
   * Validates the given auth key.
   * 
   * @param  string  $authKey The given auth key.
   * @return boolean          Whether the given auth key is valid.
   */
  public function validateAuthKey($authKey)
  {
    //return $this->getAuthKey() === $authKey;
  }

  /**
   * Generates "remember me" authentication key. 
   */
  public function generateAuthKey()
  {
    $this->auth_key = Yii::$app->security->generateRandomString();
  }

  /**
   * Validates password.
   *
   * @param  string $password
   * @return bool
   * 
   * @throws \yii\base\InvalidConfigException
   */
  public function validatePassword($password)
  {
    return md5($password) === $this->password;
    // return Yii::$app->security->validatePassword($password, $this->password_hash);
  }

  /**
   * Generates password hash from password and sets it to the model.
   *
   * @param  string $password
   * 
   * @throws \yii\base\Exception
   * @throws \yii\base\InvalidConfigException
   */
  public function setPassword($password)
  {
    $this->password_hash = Yii::$app->security->generatePasswordHash($password);
  }
}