<?php

namespace Illuminate\Contracts\Auth;

interface Guard
{
    /**
     * Determine if the current user is authenticated.
     *
     * @return bool
     */
    public function check();

    /**
     * Determine if the current user is a guest.
     *
     * @return bool
     */
    public function guest();

    /**
     * Get the currently authenticated user.
     *
     * @return \Illuminate\Contracts\Auth\Authenticatable|null
     */
    public function user();

    /**
     * Log a user into the application without sessions or cookies.
     *
     * @param  array  $credentials
     * @return bool
     */
    public function once(array $credentials = []);

    /**
     * Attempt to authenticate a user using the given credentials.
     *
     * @param  array  $credentials
     * @param  bool   $remember
     * @param  bool   $login
     * @return bool
     */
    public function attempt(array $credentials = [], $remember = false, $login = true);

    /**
     * Attempt to authenticate using HTTP Basic Auth.
     *
     * @param  string  $field
     * @return \Symfony\Component\HttpFoundation\Response|null
     */
    public function basic($field = 'email');

    /**
     * Perform a stateless HTTP Basic login attempt.
     *
     * @param  string  $field
     * @return \Symfony\Component\HttpFoundation\Response|null
     */
    public function onceBasic($field = 'email');

    /**
     * Validate a user's credentials.
     *
     * @param  array  $credentials
     * @return bool
     */
    public function validate(array $credentials = []);

    /**
     * Log a user into the application.
     *
     * @param  \Illuminate\Contracts\Auth\Authenticatable  $user
     * @param  bool  $remember
     * @return void
     */
    public function login(Authenticatable $user, $remember = false);

    /**
     * Log the given user ID into the application.
     *
     * @param  mixed  $id
     * @param  bool   $remember
     * @return \Illuminate\Contracts\Auth\Authenticatable
     */
    public function loginUsingId($id, $remember = false);

    /**
     * Determine if the user was authenticated via "remember me" cookie.
     *
     * @return bool
     */
    public function viaRemember();

    /**
     * Log the user out of the application.
     *
     * @return void
     */
    public function logout();
}