<?php
 
 namespace Illuminate\Contracts\Auth;
 
 use Closure;
 
 interface PasswordBroker
 {
     /**
      * Constant representing a successfully sent reminder.
      *
      * @var string
      */
     const RESET_LINK_SENT = 'passwords.sent';
 
     /**
      * Constant representing a successfully reset password.
      *
      * @var string
      */
     const PASSWORD_RESET = 'passwords.reset';
 
     /**
      * Constant representing the user not found response.
      *
      * @var string
      */
     const INVALID_USER = 'passwords.user';
 
     /**
      * Constant representing an invalid password.
      *
      * @var string
      */
     const INVALID_PASSWORD = 'passwords.password';
 
     /**
      * Constant representing an invalid token.
      *
      * @var string
      */
     const INVALID_TOKEN = 'passwords.token';
 
     /**
      * Send a password reset link to a user.
      *
      * @param  array  $credentials
      * @return string
      */
     public function sendResetLink(array $credentials);
 
     /**
      * Reset the password for the given token.
      *
      * @param  array     $credentials
      * @param  \Closure  $callback
      * @return mixed
      */
     public function reset(array $credentials, Closure $callback);
 
     /**
      * Set a custom password validator.
      *
      * @param  \Closure  $callback
      * @return void
      */
     public function validator(Closure $callback);
 
     /**
      * Determine if the passwords match for the request.
      *
      * @param  array  $credentials
      * @return bool
      */
     public function validateNewPassword(array $credentials);
 }